/*! tailwindcss v4.2.2 | MIT License | https://tailwindcss.com */@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial;--tw-ease:initial}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:"SF Mono", "Fira Code", "Consolas", monospace;--color-black:#000;--color-white:#fff;--spacing:.5rem;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:.75rem;--shadow-sm:0 1px 3px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--ease-out:cubic-bezier(0, 0, .2, 1);--ease-in-out:cubic-bezier(.4, 0, .2, 1);--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono);--radius:12px;--color-primary:#4255ff;--color-primary-dark:#3b4ce0;--color-primary-light:#edefff;--color-accent:#ffcd1f;--color-accent-dark:#e5b800;--color-surface:#f6f7fb;--color-surface-dark:#edefff;--color-highlight:#ff6b35;--color-muted:#939bb4;--color-border:#e2e8f0;--color-text:#282e3e;--color-success:#23b26d;--color-warning:#ff9800;--color-danger:#ff4747;--color-lang-en:#4255ff;--color-lang-vi:#ff4747;--color-lang-zh:#ff6b35;--font-display:"Inter", system-ui, -apple-system, sans-serif;--font-body:"Inter", system-ui, -apple-system, sans-serif;--radius-full:9999px;--shadow-card:0 2px 8px #0000000f;--shadow-card-hover:0 8px 24px #0000001a;--shadow-button:0 2px 4px #4255ff33;--shadow-modal:0 16px 48px #00000029;--ease-out-expo:cubic-bezier(.16, 1, .3, 1)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;-moz-tab-size:4;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){-webkit-appearance:button;-moz-appearance:button;appearance:button}::file-selector-button{-webkit-appearance:button;-moz-appearance:button;appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.collapse{visibility:collapse}.visible{visibility:visible}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.sticky{position:sticky}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.block{display:block}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.inline-block{display:inline-block}.inline-flex{display:inline-flex}.table{display:table}.w-full{width:100%}.min-w-0{min-width:calc(var(--spacing) * 0)}.flex-1{flex:1}.shrink-0{flex-shrink:0}.border-collapse{border-collapse:collapse}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.resize{resize:both}.flex-col{flex-direction:column}.overflow-y-auto{overflow-y:auto}.border{border-style:var(--tw-border-style);border-width:1px}.text-primary{color:var(--color-primary)}.capitalize{text-transform:capitalize}.uppercase{text-transform:uppercase}.italic{font-style:italic}.line-through{text-decoration-line:line-through}.underline{text-decoration-line:underline}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.ease-in-out{--tw-ease:var(--ease-in-out);transition-timing-function:var(--ease-in-out)}.ease-out{--tw-ease:var(--ease-out);transition-timing-function:var(--ease-out)}@media(hover:hover){.hover\:bg-black\/5:hover{background-color:#0000000d}@supports (color:color-mix(in lab,red,red)){.hover\:bg-black\/5:hover{background-color:color-mix(in oklab,var(--color-black) 5%,transparent)}}.hover\:opacity-80:hover{opacity:.8}}@media not all and (min-width:48rem){.max-md\:border-t{border-top-style:var(--tw-border-style);border-top-width:1px}}@media(min-width:48rem){.md\:w-\[220px\]{width:220px}.md\:flex-row{flex-direction:row}.md\:overflow-hidden{overflow:hidden}.md\:overflow-y-auto{overflow-y:auto}.md\:border-l{border-left-style:var(--tw-border-style);border-left-width:1px}}@media(prefers-color-scheme:dark){@media(hover:hover){.dark\:hover\:bg-white\/5:hover{background-color:#ffffff0d}@supports (color:color-mix(in lab,red,red)){.dark\:hover\:bg-white\/5:hover{background-color:color-mix(in oklab,var(--color-white) 5%,transparent)}}}}}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-body);background-color:var(--color-surface);color:var(--color-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100dvh;min-height:-webkit-fill-available;line-height:1.6}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);letter-spacing:-.02em;color:var(--color-text);font-weight:700;line-height:1.2}.btn{font-family:var(--font-body);border-radius:var(--radius-full);cursor:pointer;white-space:nowrap;border:2px solid #0000;justify-content:center;align-items:center;gap:.5rem;padding:.625rem 1.25rem;font-size:.875rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex;position:relative}.btn-primary{background:var(--color-primary);color:var(--color-white);border-color:var(--color-primary);box-shadow:var(--shadow-button)}.btn-primary:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px #4255ff4d}.btn-primary:active{box-shadow:var(--shadow-button);transform:translateY(0)}.btn-accent{background:var(--color-accent);color:var(--color-text);border-color:var(--color-accent)}.btn-accent:hover{background:var(--color-accent-dark);border-color:var(--color-accent-dark);transform:translateY(-1px)}.btn-accent:active{transform:translateY(0)}.btn-outline{color:var(--color-primary);border-color:var(--color-border);background:0 0}.btn-outline:hover{background:var(--color-primary-light);border-color:var(--color-primary)}.btn-ghost{color:var(--color-muted);background:0 0;border-color:#0000}.btn-ghost:hover{background:var(--color-surface-dark);color:var(--color-text)}.btn-sm{padding:.375rem .75rem;font-size:.75rem}.btn-lg{padding:.875rem 1.75rem;font-size:1rem}.btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.input{width:100%;font-family:var(--font-body);border:2px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-white);color:var(--color-text);outline:none;padding:.625rem .875rem;font-size:.9375rem;transition:border-color .2s,box-shadow .2s}.input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #4255ff1f}.input::placeholder{color:var(--color-muted)}.input-error{border-color:var(--color-danger)}.form-label{color:var(--color-text);margin-bottom:.375rem;font-size:.8125rem;font-weight:600;display:block}.form-group{flex-direction:column;gap:.25rem;margin-bottom:1.25rem;display:flex}.card{background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow-card);padding:1.5rem;transition:transform .2s,box-shadow .2s;position:relative}.card:hover{box-shadow:var(--shadow-card-hover)}.card-accent{border-color:var(--color-primary)}.flashcard-scene{perspective:1000px;cursor:pointer;width:100%;max-width:600px;height:360px;margin:0 auto}.flashcard-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .5s var(--ease-out-expo);position:relative}.flashcard-inner.is-flipped{transform:rotateY(180deg)}.flashcard-face{backface-visibility:hidden;border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);flex-direction:column;justify-content:center;align-items:center;padding:2rem;display:flex;position:absolute;top:0;right:0;bottom:0;left:0}.flashcard-front{background:var(--color-white)}.flashcard-back{background:var(--color-primary);color:#fff;transform:rotateY(180deg)}.lang-badge{text-transform:uppercase;letter-spacing:.08em;border-radius:var(--radius-full);background:currentColor;align-items:center;gap:.25rem;padding:.2rem .6rem;font-size:.7rem;font-weight:600;display:inline-flex}.lang-badge-en{color:var(--color-lang-en);background:#4255ff1a}.lang-badge-vi{color:var(--color-lang-vi);background:#ff47471a}.lang-badge-zh{color:var(--color-lang-zh);background:#ff6b351a}.plan-badge{text-transform:uppercase;letter-spacing:.1em;border-radius:var(--radius-full);align-items:center;padding:.2rem .6rem;font-size:.65rem;font-weight:700;display:inline-flex}.plan-free{color:var(--color-muted);background:var(--color-surface)}.plan-pro{color:#fff;background:linear-gradient(135deg,var(--color-primary),#6366f1)}.sidebar{background:var(--color-white);border-right:1px solid var(--color-border);z-index:100;flex-direction:column;width:240px;padding:1.5rem 0;display:flex;position:fixed;top:0;bottom:0;left:0;overflow-y:auto}.sidebar-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;margin-bottom:1.25rem;padding-bottom:1.25rem;padding-right:1.25rem;display:flex}.sidebar-toggle-btn{cursor:pointer;color:var(--color-muted);border-radius:var(--radius-sm);background:0 0;border:none;justify-content:center;align-items:center;padding:.25rem;transition:all .15s;display:flex}.sidebar-toggle-btn:hover{background:var(--color-surface-dark);color:var(--color-primary)}.sidebar-brand{font-family:var(--font-display);letter-spacing:-.02em;color:var(--color-text);align-items:center;gap:.5rem;padding:0 1.25rem;font-size:1.25rem;font-weight:800;text-decoration:none;display:flex}.sidebar-brand span.accent{color:var(--color-primary)}.sidebar-nav{flex-direction:column;flex:1;gap:.125rem;padding:0 .75rem;display:flex}.sidebar-section-title{text-transform:uppercase;letter-spacing:.08em;color:var(--color-muted);padding:1rem .5rem .375rem;font-size:.7rem;font-weight:600}.nav-group-label{letter-spacing:.08em;text-transform:uppercase;color:var(--color-muted);opacity:.7;margin-top:.25rem;padding:.5rem .875rem .2rem;font-size:.65rem;font-weight:700}.nav-link{color:var(--color-muted);border-radius:var(--radius-sm);align-items:center;gap:.75rem;padding:.5rem .75rem;font-size:.875rem;font-weight:500;text-decoration:none;transition:all .15s;display:flex}.nav-link:hover{background:var(--color-surface);color:var(--color-text)}.nav-link.active{background:var(--color-primary-light);color:var(--color-primary);font-weight:600}.sidebar-footer{border-top:1px solid var(--color-border);margin-top:auto;padding:.75rem 1rem}.sidebar-user{align-items:center;gap:.625rem;display:flex}.sidebar-user-link{flex:1;align-items:center;gap:.625rem;min-width:0;text-decoration:none;display:flex}.sidebar-user-actions{align-items:center;gap:.125rem;display:inline-flex}.sidebar-avatar{color:#fff;letter-spacing:.02em;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:.8125rem;font-weight:700;display:flex}.sidebar-user-info{flex-direction:column;flex:1;min-width:0;display:flex}.sidebar-user-name{color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;font-size:.8125rem;font-weight:600;line-height:1.3;overflow:hidden}.sidebar-user-email{color:var(--color-muted);text-overflow:ellipsis;white-space:nowrap;font-size:.6875rem;line-height:1.3;overflow:hidden}.sidebar-logout-btn{width:32px;height:32px;color:var(--color-muted);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;transition:all .15s;display:flex}.sidebar-logout-btn:hover{color:#e74c3c;background:#e74c3c14}.nav-icon{text-align:center;flex-shrink:0;width:1.5rem;font-size:1.125rem}.social-feed-layout{grid-template-columns:minmax(0,1fr) 260px;align-items:start;gap:1.5rem;max-width:920px;display:grid}.social-feed-main{min-width:0}.social-feed-tabs{border-bottom:2px solid var(--color-border);scrollbar-width:none;gap:.25rem;margin-bottom:1rem;display:flex;overflow-x:auto}.social-feed-tabs::-webkit-scrollbar{display:none}.social-feed-sidebar{margin-top:47px;position:sticky;top:1rem}.social-discover-fab,.social-discover-overlay{display:none}.navbar{z-index:100;background:var(--color-white);color:var(--color-text);border-bottom:1px solid var(--color-border);height:64px;box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;padding:0 2rem;display:flex;position:sticky;top:0}.navbar-brand{font-family:var(--font-display);letter-spacing:-.02em;color:var(--color-text);align-items:center;gap:.5rem;font-size:1.25rem;font-weight:800;text-decoration:none;display:flex}.navbar-brand span.accent{color:var(--color-primary)}.navbar-nav{align-items:center;gap:.25rem;display:flex}.app-layout{min-height:100dvh;display:flex}.app-content{flex:1;min-width:0;min-height:100dvh;margin-left:240px;overflow-x:hidden}.page-container{max-width:1100px;margin:0 auto;padding:2rem}.page-header{justify-content:space-between;align-items:flex-end;gap:1rem;margin-bottom:2rem;padding-bottom:1rem;display:flex}.page-title{letter-spacing:-.02em;color:var(--color-text);font-size:clamp(1.5rem,4vw,1.875rem);font-weight:700}.sentence-arrangement-page{background:radial-gradient(circle at 0 0,#4255ff24,#0000 28%),radial-gradient(circle at 100% 0,#ffcd1f29,#0000 24%),linear-gradient(#f8f9ff,#eef2ff 45%,#f6f7fb);min-height:100vh;padding:2rem 1rem 3rem}.sentence-arrangement-shell{max-width:880px;margin:0 auto}.sentence-arrangement-config,.sentence-arrangement-loading,.sentence-arrangement-pro-wall,.sentence-arrangement-play,.sentence-arrangement-feedback-modal{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffd1;border:1px solid #fffc;box-shadow:0 18px 48px #4255ff1a,inset 0 1px #ffffffa6}.sentence-arrangement-config,.sentence-arrangement-loading,.sentence-arrangement-pro-wall,.sentence-arrangement-play{border-radius:32px}.sentence-arrangement-config,.sentence-arrangement-loading,.sentence-arrangement-pro-wall{max-width:620px;margin:0 auto;padding:2rem}.sentence-arrangement-config-hero{text-align:center;margin-bottom:1.75rem}.sentence-arrangement-config-badge,.sentence-arrangement-play-badge,.sentence-arrangement-section-label{color:var(--color-primary);background:#4255ff14;border:1px solid #4255ff29;border-radius:999px;align-items:center;gap:.45rem;padding:.45rem .8rem;font-size:.78rem;font-weight:700;display:inline-flex}.sentence-arrangement-config-title,.sentence-arrangement-pro-title,.sentence-arrangement-loading-title,.sentence-arrangement-feedback-title{letter-spacing:-.03em;font-size:clamp(1.7rem,4vw,2.2rem);font-weight:800;line-height:1.1}.sentence-arrangement-config-title{margin-top:1rem}.sentence-arrangement-config-copy,.sentence-arrangement-pro-copy{max-width:44ch;color:var(--color-muted);margin:.75rem auto 0;font-size:1rem}.sentence-arrangement-config-grid{gap:1rem;margin-bottom:1.5rem;display:grid}.sentence-arrangement-field{flex-direction:column;gap:.45rem;display:flex}.sentence-arrangement-field-label{align-items:center;gap:.5rem;font-size:.92rem;font-weight:700;display:inline-flex}.sentence-arrangement-select{border:1px solid var(--color-border);width:100%;min-height:54px;color:var(--color-text);background:#ffffffe6;border-radius:18px;outline:none;padding:.85rem 1rem;font-size:.98rem;box-shadow:0 8px 20px #0f172a0a}.sentence-arrangement-select:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #4255ff1f}.sentence-arrangement-cta,.sentence-arrangement-pro-cta,.sentence-arrangement-submit,.sentence-arrangement-secondary-btn{justify-content:center;align-items:center;gap:.55rem;text-decoration:none;transition:all .18s;display:inline-flex}.sentence-arrangement-cta,.sentence-arrangement-pro-cta,.sentence-arrangement-submit{width:100%;min-height:58px;color:var(--color-white);cursor:pointer;background:linear-gradient(135deg,#4b5eff,#6b78ff);border:none;border-radius:999px;padding:1rem 1.25rem;font-size:1.06rem;font-weight:800;box-shadow:0 14px 32px #4255ff47}.sentence-arrangement-cta:hover,.sentence-arrangement-pro-cta:hover,.sentence-arrangement-submit:hover{transform:translateY(-1px);box-shadow:0 18px 34px #4255ff57}.sentence-arrangement-submit:disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}.sentence-arrangement-secondary-btn{border:1px solid var(--color-border);width:100%;min-height:54px;color:var(--color-text);cursor:pointer;background:#ffffffdb;border-radius:999px;padding:.95rem 1.15rem;font-size:.98rem;font-weight:700}.sentence-arrangement-secondary-btn:hover{background:var(--color-primary-light);border-color:#4255ff38}.sentence-arrangement-loading{text-align:center}.sentence-arrangement-loading-icon,.sentence-arrangement-pro-icon,.sentence-arrangement-feedback-icon{border-radius:24px;place-items:center;width:84px;height:84px;margin:0 auto 1.25rem;display:grid}.sentence-arrangement-loading-icon,.sentence-arrangement-pro-icon{color:var(--color-primary);background:linear-gradient(135deg,#4255ff1f,#ffcd1f2e)}.sentence-arrangement-play{padding:1.35rem}.sentence-arrangement-play-hero{margin-bottom:1rem}.sentence-arrangement-translation-card{text-align:center;letter-spacing:-.03em;background:linear-gradient(#fffffffa,#f6f7fbf2);border:1px solid #e2e8f0f2;border-radius:26px;margin-top:.8rem;padding:1.4rem 1.25rem;font-size:clamp(1.2rem,3.4vw,1.75rem);font-weight:700;line-height:1.45;box-shadow:0 14px 30px #0f172a0f}.sentence-arrangement-board{flex-direction:column;gap:1rem;display:flex}.sentence-arrangement-dropzone,.sentence-arrangement-word-bank{background:#ffffffe0;border:1px solid #e2e8f0f2;border-radius:26px;padding:1rem;box-shadow:0 10px 24px #0f172a0a}.sentence-arrangement-dropzone{flex-wrap:wrap;align-items:flex-start;gap:.7rem;min-height:154px;display:flex}.sentence-arrangement-dropzone.is-empty{background:linear-gradient(#edefff8c,#ffffffe0);border-style:dashed;justify-content:center;align-items:center}.sentence-arrangement-dropzone-header,.sentence-arrangement-word-bank>.sentence-arrangement-section-label{width:100%;margin-bottom:.25rem}.sentence-arrangement-dropzone-empty{color:var(--color-muted);align-items:center;gap:.55rem;font-size:1rem;font-weight:600;display:inline-flex}.sentence-arrangement-word-bank-grid{flex-wrap:wrap;justify-content:center;gap:.75rem;display:flex}.sentence-arrangement-chip{color:var(--color-white);cursor:pointer;-webkit-user-select:none;user-select:none;background:linear-gradient(135deg,#4b5eff,#5668ff);border:1px solid #4255ff1f;border-radius:18px;padding:.9rem 1.15rem;font-size:1rem;font-weight:700;transition:transform .12s,box-shadow .18s,opacity .18s;box-shadow:0 10px 22px #4255ff38}.sentence-arrangement-chip:hover{transform:translateY(-1px);box-shadow:0 14px 26px #4255ff47}.sentence-arrangement-chip:active{transform:scale(.97)}.sentence-arrangement-footer{flex-direction:column;align-items:center;gap:1rem;margin-top:1.2rem;display:flex}.sentence-arrangement-attempts{border:1px solid var(--color-border);color:var(--color-text);background:#ffffffe0;border-radius:999px;align-items:center;gap:.5rem;padding:.7rem 1rem;font-weight:700;display:inline-flex}.sentence-arrangement-attempts.is-warning{color:var(--color-danger);background:#ff474714;border-color:#ff47472e}.sentence-arrangement-submit{max-width:420px}.sentence-arrangement-feedback-overlay{z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#1219307a;justify-content:center;align-items:center;padding:1rem;display:flex;position:fixed;top:0;right:0;bottom:0;left:0}.sentence-arrangement-feedback-modal{text-align:center;border-radius:30px;width:100%;max-width:620px;padding:2rem}.sentence-arrangement-feedback-answer{margin:1rem 0 1.25rem}.sentence-arrangement-feedback-label{color:var(--color-muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:.45rem;font-size:.82rem;font-weight:700;display:block}.sentence-arrangement-feedback-answer-text{color:var(--color-primary);font-size:1.14rem;font-weight:700;line-height:1.5}.sentence-arrangement-feedback-explanation{text-align:left;background:#edefffb3;border:1px solid #4255ff29;border-radius:22px;margin-bottom:1.5rem;padding:1rem 1.05rem}.sentence-arrangement-feedback-explanation-text{color:var(--color-text);font-size:.98rem;line-height:1.65}.sentence-arrangement-feedback-actions{flex-direction:column;gap:.75rem;display:flex}.deck-detail-page{flex-direction:column;gap:1rem;display:flex}.deck-detail-hero{border:1px solid var(--color-border);background:linear-gradient(#fffffffa,#edefffb3);border-radius:24px;justify-content:space-between;align-items:flex-end;gap:1.5rem;padding:1.5rem;display:flex;box-shadow:0 12px 32px #4255ff14}.deck-detail-hero-main{flex-direction:column;gap:.9rem;min-width:0;display:flex}.deck-detail-breadcrumbs{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.deck-detail-backlink{border-radius:var(--radius-full);border:1px solid var(--color-border);color:var(--color-muted);background:#ffffffdb;align-items:center;gap:.35rem;padding:.45rem .75rem;font-size:.8rem;font-weight:600;text-decoration:none;transition:all .15s;display:inline-flex}.deck-detail-backlink:hover{color:var(--color-text);border-color:#4255ff40}.deck-detail-share-badge{border-radius:var(--radius-full);color:var(--color-primary);background:#4255ff1f;border:1px solid #4255ff2e;align-items:center;padding:.35rem .7rem;font-size:.72rem;font-weight:700;display:inline-flex}.deck-detail-title-row{justify-content:space-between;align-items:flex-start;gap:1rem;display:flex}.deck-detail-description{max-width:56ch;color:var(--color-muted);margin-top:.4rem;font-size:.95rem}.deck-detail-stats{flex-wrap:wrap;gap:.65rem;display:flex}.deck-detail-stat-pill{border-radius:var(--radius-full);border:1px solid var(--color-border);color:var(--color-text);background:#ffffffe0;align-items:center;gap:.45rem;padding:.55rem .8rem;font-size:.78rem;font-weight:600;display:inline-flex}.deck-detail-stat-pill-accent{color:#b38600;background:#ffcd1f2e;border-color:#ffcd1f73}.deck-detail-actions{flex-wrap:wrap;justify-content:flex-end;gap:.75rem;max-width:360px;display:flex}.deck-detail-primary-action,.deck-detail-secondary-action{min-height:48px}.deck-detail-search{position:relative}.deck-detail-search-icon{color:var(--color-muted);pointer-events:none;position:absolute;top:50%;left:1rem;transform:translateY(-50%)}.deck-detail-search-input{border-width:1px;border-radius:20px;min-height:56px;padding-left:2.8rem;padding-right:2.8rem;box-shadow:0 10px 24px #0f172a0a}.deck-detail-search-clear{width:2rem;height:2rem;color:var(--color-muted);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;display:inline-flex;position:absolute;top:50%;right:.85rem;transform:translateY(-50%)}.deck-detail-empty-state{text-align:center;border:1px dashed var(--color-border);background:#ffffffb3;border-radius:24px;padding:3rem 1.5rem}.deck-detail-empty-icon{background:var(--color-primary-light);width:64px;height:64px;color:var(--color-primary);border-radius:20px;place-items:center;margin:0 auto 1rem;display:grid}.deck-detail-card-list{flex-direction:column;gap:1rem;display:flex}.deck-word-card{border-radius:24px;grid-template-columns:minmax(0,1fr);gap:1rem;padding:1.1rem;display:grid}.deck-word-card-has-image{grid-template-columns:84px minmax(0,1fr)}.deck-word-card-image{object-fit:cover;border:1px solid var(--color-border);cursor:zoom-in;border-radius:18px;width:84px;height:84px;transition:opacity .15s,transform .15s}.deck-word-card-image:hover{transform:translateY(-1px)}.deck-word-card-main{min-width:0}.deck-word-card-top{justify-content:space-between;align-items:flex-start;gap:.75rem;display:flex}.deck-word-card-headline{flex-wrap:wrap;align-items:baseline;gap:.45rem .65rem;min-width:0;display:flex}.deck-word-card-title{letter-spacing:-.03em;word-break:break-word;font-size:1.3rem;font-weight:800;line-height:1.15}.deck-word-card-phonetic{color:var(--color-primary);font-size:.84rem;font-weight:600}.deck-word-card-side-actions{flex-shrink:0;gap:.4rem;display:flex}.deck-word-card-icon-btn,.deck-word-card-speak{border:1px solid var(--color-border);width:2rem;height:2rem;color:var(--color-muted);cursor:pointer;background:#ffffffdb;border-radius:999px;justify-content:center;align-items:center;transition:all .15s;display:inline-flex}.deck-word-card-icon-btn:hover,.deck-word-card-speak:hover{color:var(--color-text);background:var(--color-primary-light);border-color:#4255ff47}.deck-word-card-icon-btn-danger:hover{color:var(--color-danger);background:#ff474714;border-color:#ff474740}.deck-word-card-meta{flex-wrap:wrap;align-items:center;gap:.5rem;margin-top:.55rem;display:flex}.deck-word-card-badge{color:var(--color-muted);background:#94a3b814;border:1px solid #64748b33;border-radius:999px;align-items:center;gap:.3rem;padding:.28rem .6rem;font-size:.72rem;font-weight:700;display:inline-flex}.deck-word-card-badge-success{color:var(--color-success);background:#23b26d1a;border-color:#23b26d3d}.deck-word-card-meaning{color:var(--color-text);margin-top:.7rem;font-size:.98rem;font-weight:600;line-height:1.55}.deck-word-card-notes{color:var(--color-muted);margin-top:.35rem;font-size:.84rem;font-style:italic}.deck-word-card-tools{flex-wrap:wrap;gap:.55rem;margin-top:.9rem;display:flex}.deck-word-card-tool{border:1px solid var(--color-border);background:var(--color-white);min-height:38px;color:var(--color-muted);cursor:pointer;border-radius:999px;align-items:center;gap:.45rem;padding:.5rem .8rem;font-size:.78rem;font-weight:600;transition:all .15s;display:inline-flex}.deck-word-card-tool:hover{color:var(--color-text);background:var(--color-primary-light);border-color:#4255ff47}.deck-word-card-tool-active{color:var(--color-primary);background:var(--color-primary-light);border-color:#4255ff47}.deck-word-card-tool-danger{color:var(--color-danger);background:#ff47470f;border-color:#ff47474d}@keyframes spin{to{transform:rotate(360deg)}}.chat-wrapper{background:var(--color-surface);flex-direction:column;height:100dvh;display:flex}.chat-topbar{border-bottom:1px solid var(--color-border);background:var(--color-white);flex-shrink:0;align-items:center;gap:1rem;padding:.875rem 1.5rem;display:flex}.chat-topbar-title{flex:1}.chat-topbar-subtitle{text-transform:uppercase;letter-spacing:.1em;color:var(--color-muted);margin-bottom:.15rem;font-size:.65rem;font-weight:500}.chat-topbar-main-title{font-size:.95rem;font-weight:700}.chat-messages{flex-direction:column;flex:1;gap:1rem;padding:1.5rem;display:flex;overflow-y:auto}.chat-input-area{padding:1rem 1.5rem;padding-bottom:calc(1rem + env(safe-area-inset-bottom,0px));border-top:1px solid var(--color-border);background:var(--color-white);flex-shrink:0;align-items:flex-end;gap:.75rem;display:flex}@media(max-width:768px){.chat-wrapper{height:calc(100dvh - 61px);min-height:calc(100dvh - 61px)}.chat-topbar{gap:.5rem;padding:.65rem 1rem}.chat-topbar-subtitle{display:none}.hide-on-mobile{display:none!important}.chat-action-btn{padding:.35rem .5rem!important}.chat-action-label{gap:.2rem!important}.chat-messages{padding:1rem}.chat-input-area{gap:.5rem;padding:.75rem 1rem}.social-feed-layout{grid-template-columns:1fr;gap:1rem;max-width:none}.social-feed-sidebar{margin-top:0;position:static}.social-discover-fab{right:1rem;bottom:calc(1rem + env(safe-area-inset-bottom,0px));z-index:80;border-radius:var(--radius-full);background:var(--color-primary);color:#fff;cursor:pointer;border:none;align-items:center;gap:.35rem;padding:.625rem .875rem;font-size:.8125rem;font-weight:600;display:inline-flex;position:fixed;box-shadow:0 12px 24px #4255ff47}.social-discover-overlay{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:140;background:#11182761;align-items:flex-end;display:flex;position:fixed;top:0;right:0;bottom:0;left:0}.social-discover-sheet{background:var(--color-white);border-top-left-radius:var(--radius-xl);border-top-right-radius:var(--radius-xl);border:1px solid var(--color-border);border-bottom:none;flex-direction:column;width:100%;max-height:min(80dvh,640px);display:flex;overflow:hidden;box-shadow:0 -8px 32px #11182733}.social-discover-sheet-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;padding:.875rem 1rem;display:flex}.social-discover-sheet-title{color:var(--color-text);font-size:.9rem;font-weight:700}.social-discover-close{border-radius:var(--radius-full);background:var(--color-surface);width:32px;height:32px;color:var(--color-muted);cursor:pointer;border:none;justify-content:center;align-items:center;display:inline-flex}.social-discover-sheet-content{padding:1rem;overflow:auto}}.stats-metrics-grid{grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:1.5rem;display:grid}.stats-middle-grid{grid-template-columns:1fr 2fr;gap:1rem;margin-bottom:1rem;display:grid}.stats-footer-grid{grid-template-columns:repeat(4,1fr);gap:.75rem;margin-top:1rem;display:grid}@media(max-width:900px){.stats-middle-grid{grid-template-columns:1fr}}@media(max-width:768px){.stats-metrics-grid,.stats-footer-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.stats-metrics-grid,.stats-footer-grid{grid-template-columns:1fr}}@media(min-width:769px){body.sidebar-collapsed .sidebar{width:72px}body.sidebar-collapsed .app-content{margin-left:72px}body.sidebar-collapsed .sidebar-header{flex-direction:column;justify-content:center;gap:1rem;padding-right:0}body.sidebar-collapsed .sidebar-brand{justify-content:center;padding:0}body.sidebar-collapsed .sidebar-brand-text,body.sidebar-collapsed .nav-text,body.sidebar-collapsed .sidebar-user-info,body.sidebar-collapsed .nav-group-label{display:none}body.sidebar-collapsed .nav-link{justify-content:center;padding:.65rem}body.sidebar-collapsed .sidebar-logout-btn{display:none}body.sidebar-collapsed .sidebar-avatar{margin:0 auto}body.sidebar-collapsed .sidebar-footer{padding:.75rem 0}body.sidebar-collapsed .sidebar-user{justify-content:center}body.sidebar-collapsed .sidebar-user-link{flex:none;justify-content:center;width:100%}body.sidebar-collapsed .sidebar-user-actions,.mobile-topbar{display:none}}.spinner{border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;width:24px;height:24px;animation:.7s linear infinite spin}.loading-screen{background:var(--color-surface);z-index:9999;justify-content:center;align-items:center;display:flex;position:fixed;top:0;right:0;bottom:0;left:0}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:200;background:#282e3e80;justify-content:center;align-items:center;padding:2rem;animation:.15s fadeIn;display:flex;position:fixed;top:0;right:0;bottom:0;left:0}.modal{background:var(--color-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-modal);width:100%;max-width:520px;max-height:90vh;animation:slideUp .2s var(--ease-out-expo);overflow-y:auto}.modal-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;display:flex}.modal-body{padding:1.5rem}.modal-footer{border-top:1px solid var(--color-border);justify-content:flex-end;gap:.75rem;padding:1rem 1.5rem;display:flex}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-12px)}to{opacity:1;transform:translate(0)}}@keyframes skeleton-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.animate-fade-in{animation:.3s forwards fadeIn}.animate-slide-in{animation:slideIn .3s var(--ease-out-expo) forwards}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--color-muted)}@media(max-width:768px){.sidebar{z-index:1000;background:var(--color-white);width:260px;transition:transform .3s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;top:0;bottom:0;left:0;transform:translate(-100%)}.sidebar.mobile-open{transform:translate(0)}.mobile-sidebar-backdrop{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:999;background:#0006;animation:.3s forwards fadeIn;position:fixed;top:0;right:0;bottom:0;left:0}.app-layout{flex-direction:column;min-height:100dvh}.app-content{flex-direction:column;min-height:calc(100dvh - 61px);margin-left:0;display:flex}.mobile-topbar{background:var(--color-white);border-bottom:1px solid var(--color-border);z-index:900;align-items:center;padding:1rem 1.25rem;display:flex;position:sticky;top:0}.mobile-menu-btn{cursor:pointer;color:var(--color-text);background:0 0;border:none;justify-content:center;align-items:center;margin-right:1rem;padding:0;display:flex}.mobile-brand{font-family:var(--font-display);letter-spacing:-.02em;color:var(--color-text);align-items:center;gap:.5rem;font-size:1.25rem;font-weight:800;text-decoration:none;display:flex}.mobile-brand .accent{color:var(--color-primary)}.mobile-nav{display:flex!important}.page-container{padding:1.5rem 1rem}.page-header{flex-direction:column;align-items:flex-start;gap:.75rem;margin-bottom:1.5rem}.page-title{font-size:1.5rem}.sentence-arrangement-page{padding:1.5rem .9rem 2.25rem}.sentence-arrangement-config,.sentence-arrangement-loading,.sentence-arrangement-pro-wall,.sentence-arrangement-feedback-modal{border-radius:26px;padding:1.5rem}.sentence-arrangement-play{border-radius:26px;padding:1rem}.sentence-arrangement-translation-card{border-radius:22px;padding:1.2rem 1rem}.sentence-arrangement-dropzone,.sentence-arrangement-word-bank{border-radius:22px;padding:.9rem}.sentence-arrangement-chip{padding:.85rem 1rem;font-size:.95rem}.deck-detail-hero{border-radius:22px;flex-direction:column;align-items:stretch;gap:1rem;padding:1.1rem}.deck-detail-actions{justify-content:stretch;max-width:none}.deck-detail-primary-action,.deck-detail-secondary-action{flex:calc(50% - .375rem)}.deck-detail-description{font-size:.9rem}.deck-word-card{border-radius:22px;padding:1rem}.deck-word-card-has-image{grid-template-columns:72px minmax(0,1fr);gap:.85rem}.deck-word-card-image{border-radius:16px;width:72px;height:72px}.deck-word-card-title{font-size:1.15rem}.deck-word-card-tool{flex:100%;justify-content:center}.auth-layout{grid-template-columns:1fr!important}.auth-hero{display:none!important}.auth-form-side{padding:2rem 1.25rem!important}.landing-hero-grid{text-align:center;grid-template-columns:1fr!important;gap:2rem!important}.landing-hero-grid .hero-visual{display:none}.landing-hero-content{align-items:center}.landing-hero-content h1{font-size:clamp(1.75rem,6vw,2.5rem)!important}.landing-hero-content p{max-width:100%!important}.landing-hero-cta{justify-content:center!important}.landing-hero-promo{margin-left:auto;margin-right:auto}.landing-stats-bar{grid-template-columns:repeat(2,1fr)!important;gap:1rem!important}.landing-features-grid{grid-template-columns:1fr!important;gap:1.25rem!important}.landing-how-grid{grid-template-columns:1fr!important;gap:1.5rem!important}.plans-grid{grid-template-columns:1fr!important;max-width:100%!important}.docs-layout{grid-template-columns:1fr!important;gap:1.5rem!important}.flashcard-scene{height:280px}.flashcard-face{padding:1.5rem}.quality-buttons{grid-template-columns:repeat(2,1fr)!important;gap:.5rem!important}.modal-overlay{padding:1rem}.modal{border-radius:var(--radius);max-width:100%}}@media(max-width:480px){.page-container{padding:1rem .75rem}.flashcard-scene{height:240px}.flashcard-face,.card{padding:1rem}.sentence-arrangement-page{padding:1rem .75rem 2rem}.sentence-arrangement-config,.sentence-arrangement-loading,.sentence-arrangement-pro-wall,.sentence-arrangement-play,.sentence-arrangement-feedback-modal{border-radius:22px;padding:1.1rem}.sentence-arrangement-config-title,.sentence-arrangement-pro-title,.sentence-arrangement-loading-title,.sentence-arrangement-feedback-title{font-size:1.45rem}.sentence-arrangement-config-copy,.sentence-arrangement-pro-copy{font-size:.92rem}.sentence-arrangement-translation-card{font-size:1.05rem}.sentence-arrangement-chip{width:calc(50% - .375rem);min-width:0;padding:.8rem .9rem}.sentence-arrangement-submit,.sentence-arrangement-cta,.sentence-arrangement-pro-cta{min-height:54px;font-size:1rem}.deck-detail-hero{padding:1rem}.deck-detail-primary-action,.deck-detail-secondary-action{flex-basis:100%;width:100%}.deck-detail-search-input{border-radius:18px;min-height:52px}.deck-word-card-has-image{grid-template-columns:64px minmax(0,1fr)}.deck-word-card-image{border-radius:14px;width:64px;height:64px}.deck-word-card-side-actions{gap:.3rem}.deck-word-card-icon-btn,.deck-word-card-speak{width:1.9rem;height:1.9rem}}.tiptap-toolbar{border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius-xl) var(--radius-xl) 0 0;border-bottom:none;flex-wrap:wrap;align-items:center;gap:2px;padding:.5rem;display:flex}.tiptap-toolbar-divider{background:var(--color-border);width:1px;height:20px;margin:0 4px}.tiptap-tool-btn{border-radius:var(--radius-sm);cursor:pointer;min-width:30px;height:30px;font-size:.8rem;font-family:var(--font-mono);color:var(--color-text);background:0 0;border:1px solid #0000;justify-content:center;align-items:center;padding:0 6px;transition:all .12s;display:inline-flex}.tiptap-tool-btn:hover{background:var(--color-white);border-color:var(--color-border)}.tiptap-tool-btn.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.tiptap-editor-wrapper{border:1px solid var(--color-border);border-radius:0 0 var(--radius-xl) var(--radius-xl);background:var(--color-white);min-height:400px}.tiptap-editor-content{min-height:400px;color:var(--color-text);outline:none;padding:1.5rem;font-size:.95rem;line-height:1.7}.tiptap-editor-content>:first-child{margin-top:0}.tiptap-editor-content h1{letter-spacing:-.02em;margin:1.5rem 0 .75rem;font-size:1.8rem;font-weight:700}.tiptap-editor-content h2{margin:1.25rem 0 .6rem;font-size:1.4rem;font-weight:600}.tiptap-editor-content h3{margin:1rem 0 .5rem;font-size:1.15rem;font-weight:600}.tiptap-editor-content p{margin:.5rem 0}.tiptap-editor-content ul,.tiptap-editor-content ol{margin:.5rem 0;padding-left:1.5rem}.tiptap-editor-content ul{list-style-type:disc}.tiptap-editor-content ol{list-style-type:decimal}.tiptap-editor-content ul ul{list-style-type:circle}.tiptap-editor-content ol ol{list-style-type:lower-alpha}.tiptap-editor-content li{margin:.2rem 0}.tiptap-editor-content blockquote{border-left:4px solid var(--color-primary);background:var(--color-primary-light);color:var(--color-muted);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:.75rem 0;padding:.5rem 1rem;font-style:italic}.tiptap-editor-content pre{background:var(--color-text);color:var(--color-surface);font-family:var(--font-mono);border-radius:var(--radius-sm);margin:.75rem 0;padding:1rem;font-size:.85rem;line-height:1.5;overflow-x:auto}.tiptap-editor-content code{background:var(--color-surface);font-family:var(--font-mono);border-radius:4px;padding:2px 5px;font-size:.85em}.tiptap-editor-content pre code{color:inherit;background:0 0;border:none;padding:0}.tiptap-editor-content mark{background:#fef08a;border-radius:2px;padding:1px 3px}.tiptap-editor-content img{border-radius:var(--radius-sm);max-width:100%;height:auto;margin:.75rem 0}.tiptap-editor-content hr{border:none;border-top:1px solid var(--color-border);margin:1.5rem 0}.tiptap-editor-content a{color:var(--color-primary);text-decoration:underline}.tiptap-editor-content table{border-collapse:collapse;border:1px solid var(--color-border);border-radius:var(--radius-sm);width:100%;margin:.75rem 0}.tiptap-editor-content th,.tiptap-editor-content td{border:1px solid var(--color-border);text-align:left;min-width:80px;padding:.5rem .75rem}.tiptap-editor-content th{background:var(--color-surface);font-size:.85rem;font-weight:600}.tiptap-editor-content p.is-editor-empty:first-child:before{content:attr(data-placeholder);float:left;color:var(--color-muted);pointer-events:none;height:0;font-style:italic}.shadowing-page{max-width:720px;margin:0 auto;padding:1.5rem 1rem 4rem}.shadowing-setup{flex-direction:column;gap:1.75rem;display:flex}.shadowing-header h1{margin:0 0 .4rem;font-size:1.75rem;font-weight:700}.shadowing-subtitle{color:var(--color-muted);margin:0;font-size:.9rem}.setup-section{flex-direction:column;gap:.75rem;display:flex}.setup-label{text-transform:uppercase;letter-spacing:.05em;color:var(--color-muted);font-size:.85rem;font-weight:600}.setup-label-row{justify-content:space-between;align-items:center;display:flex}.custom-toggle-btn{border-radius:var(--radius-full);border:1px solid var(--color-border);background:var(--color-white);color:var(--color-muted);cursor:pointer;align-items:center;gap:.35rem;padding:.3rem .75rem;font-size:.78rem;font-weight:500;transition:border-color .15s,background .15s,color .15s;display:inline-flex}.custom-toggle-btn:hover{border-color:var(--color-primary);color:var(--color-primary);background:var(--color-primary-light)}.custom-toggle-btn.active{border-color:var(--color-primary);background:var(--color-primary-light);color:var(--color-primary);font-weight:600}.custom-scenario-wrap{position:relative}.custom-scenario-input{border-radius:var(--radius);border:1.5px solid var(--color-border);background:var(--color-white);width:100%;color:var(--color-text);font-size:.95rem;font-family:var(--font-body,inherit);resize:vertical;box-sizing:border-box;padding:.85rem 1rem;line-height:1.5;transition:border-color .15s,box-shadow .15s}.custom-scenario-input:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 3px #4255ff1a}.custom-scenario-input::placeholder{color:var(--color-muted);font-style:italic}.custom-scenario-count{color:var(--color-muted);pointer-events:none;font-size:.72rem;position:absolute;bottom:.5rem;right:.75rem}.lang-chips{flex-wrap:wrap;gap:.75rem;display:flex}.lang-chip{border-radius:var(--radius-full);border:2px solid var(--color-border);background:var(--color-white);cursor:pointer;color:var(--color-muted);padding:.55rem 1.25rem;font-size:.95rem;font-weight:500;transition:border-color .15s,background .15s,color .15s}.lang-chip.active,.lang-chip:hover{border-color:var(--color-primary);background:var(--color-primary-light);color:var(--color-primary);font-weight:600}.topic-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:.75rem;display:grid}.topic-card{border-radius:var(--radius);border:1px solid var(--color-border);background:var(--color-white);box-shadow:var(--shadow-card);cursor:pointer;color:var(--color-text);flex-direction:column;align-items:center;gap:.4rem;padding:.9rem .5rem;transition:border-color .15s,background .15s,transform .12s,box-shadow .2s;display:flex}.topic-card:hover{box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.topic-card.active{border-color:var(--color-primary);background:var(--color-primary-light);color:var(--color-primary);box-shadow:var(--shadow-card)}.topic-emoji{font-size:1.6rem}.topic-label{text-align:center;font-size:.78rem;line-height:1.3}.level-pills{flex-wrap:wrap;gap:.75rem;display:flex}.level-pill{border-radius:var(--radius);border:1px solid var(--color-border);background:var(--color-white);box-shadow:var(--shadow-card);cursor:pointer;color:var(--color-text);flex-direction:column;align-items:flex-start;min-width:110px;padding:.7rem 1.25rem;transition:border-color .15s,background .15s,box-shadow .15s;display:flex}.level-pill.active{border-color:var(--color-primary);background:var(--color-primary-light);color:var(--color-primary)}.level-name{font-size:.95rem;font-weight:600}.level-desc{color:var(--color-muted);font-size:.72rem}.btn-generate{border-radius:var(--radius-full);background:var(--color-primary);color:var(--color-white);border:2px solid var(--color-primary);cursor:pointer;box-shadow:var(--shadow-button,0 4px 12px #4255ff4d);justify-content:center;align-self:flex-start;align-items:center;gap:.5rem;padding:.75rem 1.75rem;font-size:1rem;font-weight:600;transition:background .15s,border-color .15s,transform .1s,box-shadow .15s;display:flex}.btn-generate:hover:not(:disabled){background:var(--color-primary-dark);border-color:var(--color-primary-dark);transform:translateY(-1px)}.btn-generate:disabled{opacity:.55;cursor:not-allowed}.shadowing-error{color:#e74c3c;background:#e74c3c1f;border:1px solid #e74c3c59;border-radius:8px;padding:.7rem 1rem;font-size:.87rem}.shadowing-practice{flex-direction:column;gap:1.25rem;display:flex}.practice-header{align-items:center;gap:1rem;display:flex}.btn-back-setup{color:var(--color-muted);cursor:pointer;background:0 0;border:none;padding:.3rem 0;font-size:.85rem}.btn-back-setup:hover{color:var(--color-text)}.practice-meta{flex-direction:column;gap:.2rem;display:flex}.practice-title{font-size:1rem;font-weight:600}.practice-progress{color:var(--color-muted);font-size:.78rem}.progress-bar-track{background:var(--color-border,#ffffff1a);border-radius:999px;height:4px;overflow:hidden}.progress-bar-fill{background:var(--color-accent);border-radius:999px;height:100%;transition:width .4s}.sentence-list{background:var(--color-white);border-radius:var(--radius);border:1px solid var(--color-border);box-shadow:var(--shadow-card);flex-direction:column;gap:.5rem;padding:1rem;display:flex}.sentence-item{opacity:.4;border-radius:8px;align-items:flex-start;gap:.75rem;padding:.6rem .75rem;transition:opacity .2s,background .2s;display:flex}.sentence-item.sentence-active{background:var(--color-primary-light);opacity:1;border:1px solid var(--color-primary)}.sentence-item.sentence-done{opacity:.6}.sentence-num{background:var(--color-border);width:22px;height:22px;color:var(--color-text);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.72rem;font-weight:600;display:flex}.sentence-text{flex:1;font-size:.93rem;line-height:1.5}.sentence-score-badge{flex-shrink:0;font-size:.78rem;font-weight:700}.practice-controls{background:var(--color-white);border-radius:var(--radius);border:1px solid var(--color-border);box-shadow:var(--shadow-card);flex-direction:column;gap:.85rem;padding:1.25rem;display:flex}.btn-translation-toggle{border:1px solid var(--color-border,#ffffff1f);color:var(--color-muted);cursor:pointer;background:0 0;border-radius:8px;align-self:flex-start;padding:.45rem 1rem;font-size:.83rem;transition:border-color .15s,color .15s}.btn-translation-toggle:hover{color:var(--color-text);border-color:var(--color-text)}.translation-box{background:var(--color-surface-dark);border:1px solid var(--color-border);color:var(--color-text);border-radius:8px;padding:.75rem 1rem;font-size:.9rem;font-style:italic}.btn-listen{border-radius:var(--radius-full);border:2px solid var(--color-border);background:var(--color-white);color:var(--color-text);cursor:pointer;align-self:flex-start;align-items:center;gap:.5rem;padding:.6rem 1.25rem;font-size:.9rem;font-weight:500;transition:background .15s,border-color .15s,color .15s;display:flex}.btn-listen:hover:not(:disabled){background:var(--color-primary-light);border-color:var(--color-primary);color:var(--color-primary)}.btn-listen:disabled{opacity:.55;cursor:not-allowed}.btn-record{border-radius:var(--radius-full);border:2px solid var(--color-primary);background:var(--color-primary);color:var(--color-white);cursor:pointer;align-self:flex-start;align-items:center;gap:.5rem;padding:.7rem 1.5rem;font-size:.95rem;font-weight:600;transition:background .15s,border-color .15s,transform .1s;display:flex;box-shadow:0 4px 12px #4255ff4d}.btn-record:hover:not(:disabled){opacity:.88}.btn-record:disabled{opacity:.55;cursor:not-allowed}.btn-record.recording{background:#e74c3c;border-color:#e74c3c;animation:1.2s ease-in-out infinite record-pulse}@keyframes record-pulse{0%,to{box-shadow:0 0 #e74c3c66}50%{box-shadow:0 0 0 10px #e74c3c00}}.waveform{align-items:center;gap:4px;height:32px;display:flex}.waveform-bar{background:var(--color-primary);border-radius:999px;width:4px;animation:.7s ease-in-out infinite alternate waveform-anim;display:inline-block}@keyframes waveform-anim{0%{height:6px}to{height:28px}}.evaluating-indicator{color:var(--color-muted);align-items:center;gap:.5rem;font-size:.85rem;display:flex}.score-card{border-radius:var(--radius);background:var(--color-white);border:1px solid var(--color-border);box-shadow:var(--shadow-card);flex-direction:column;gap:.5rem;padding:1.25rem;display:flex}.score-value{font-size:2.5rem;font-weight:800;line-height:1}.score-feedback{font-size:1rem;font-weight:600}.score-detail{color:var(--color-muted);font-size:.85rem}.score-detail em{color:var(--color-text);font-style:normal}.score-words{color:var(--color-muted);font-size:.78rem}.sentence-diff-card{flex-direction:column;gap:.9rem;padding-top:.35rem;display:flex}.sentence-diff-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;display:flex}.sentence-diff-title{color:var(--color-text);font-size:.9rem;font-weight:700}.sentence-diff-legend{flex-wrap:wrap;gap:.45rem;display:flex}.sentence-diff-pill{border-radius:var(--radius-full);border:1px solid #0000;align-items:center;padding:.28rem .65rem;font-size:.73rem;font-weight:600;display:inline-flex}.sentence-diff-pill.match{color:#157347;background:#23b26d1f;border-color:#23b26d3d}.sentence-diff-pill.missing{color:#b54708;background:#ff980024;border-color:#ff980047}.sentence-diff-pill.extra{color:#b42318;background:#e74c3c1f;border-color:#e74c3c3d}.sentence-diff-grid{grid-template-columns:74px minmax(0,1fr);align-items:start;gap:.75rem .9rem;display:grid}.sentence-diff-label{text-transform:uppercase;letter-spacing:.04em;color:var(--color-muted);padding-top:.2rem;font-size:.8rem;font-weight:700}.sentence-diff-line{flex-wrap:wrap;gap:.45rem;display:flex}.diff-token,.diff-token-placeholder{border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;min-height:34px;padding:.42rem .6rem;font-size:.92rem;line-height:1.35;display:inline-flex}.diff-token.match{color:#166534;background:#23b26d1f;border-color:#23b26d47}.diff-token.missing{color:#b54708;background:#ff980024;border-color:#ff98004d}.diff-token.extra{color:#b42318;background:#e74c3c1f;border-color:#e74c3c47}.diff-token-placeholder{background:linear-gradient(135deg,#94a3b814,#94a3b829);border-color:#94a3b82e;min-width:1.2rem}.btn-next{border-radius:var(--radius-full);border:2px solid var(--color-primary);background:var(--color-primary);color:var(--color-white);cursor:pointer;align-self:flex-start;align-items:center;gap:.4rem;padding:.65rem 1.5rem;font-size:.95rem;font-weight:600;transition:background .15s,border-color .15s,transform .1s;display:flex;box-shadow:0 4px 12px #4255ff40}.btn-next:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark);transform:translateY(-1px)}.shadowing-summary{text-align:center;flex-direction:column;align-items:center;gap:1.25rem;padding:2rem 1rem;display:flex}.summary-icon{font-size:3rem}.summary-title{margin:0;font-size:1.6rem;font-weight:700}.summary-avg-score{flex-direction:column;align-items:center;font-size:4rem;font-weight:800;line-height:1;display:flex}.summary-avg-label{color:var(--color-muted);margin-top:.25rem;font-size:.78rem;font-weight:500}.summary-feedback{font-size:1.1rem;font-weight:600}.summary-stats{flex-wrap:wrap;justify-content:center;gap:2rem;display:flex}.summary-stat{flex-direction:column;align-items:center;gap:.3rem;display:flex}.summary-stat-label{color:var(--color-muted);text-transform:uppercase;letter-spacing:.05em;font-size:.78rem}.summary-stat-value{color:var(--color-primary);font-size:1.5rem;font-weight:700}.summary-highlights{flex-direction:column;gap:.75rem;width:100%;display:flex}.highlight-card{border-radius:var(--radius);text-align:left;background:var(--color-white);border:1px solid var(--color-border);box-shadow:var(--shadow-card);align-items:center;gap:.75rem;padding:.9rem 1rem;display:flex}.highlight-tag{flex-shrink:0;width:110px;font-size:.78rem;font-weight:600}.highlight-sentence{flex:1;font-size:.88rem;line-height:1.4}.highlight-score{flex-shrink:0;font-size:.9rem;font-weight:700}.summary-actions{flex-wrap:wrap;justify-content:center;gap:.75rem;display:flex}.btn-retry{border-radius:var(--radius-full);border:2px solid var(--color-border);background:var(--color-white);color:var(--color-text);cursor:pointer;align-items:center;gap:.4rem;padding:.65rem 1.5rem;font-size:.95rem;font-weight:600;transition:border-color .15s,background .15s,color .15s;display:flex}.btn-retry:hover{border-color:var(--color-primary);background:var(--color-primary-light);color:var(--color-primary)}.btn-new-lesson{border-radius:var(--radius-full);border:2px solid var(--color-primary);background:var(--color-primary);color:var(--color-white);cursor:pointer;align-items:center;gap:.4rem;padding:.65rem 1.5rem;font-size:.95rem;font-weight:600;transition:background .15s,border-color .15s,transform .1s;display:flex;box-shadow:0 4px 12px #4255ff4d}.btn-new-lesson:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark);transform:translateY(-1px)}.mode-tabs{border-bottom:2px solid var(--color-border);gap:.5rem;margin-bottom:1rem;display:flex}.mode-tab{color:var(--color-muted);cursor:pointer;background:0 0;border:none;border-bottom:3px solid #0000;margin-bottom:-2px;padding:.65rem 1.5rem;font-size:.95rem;font-weight:500;transition:color .15s,border-color .15s}.mode-tab:hover{color:var(--color-text)}.mode-tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary);font-weight:600}.word-input{border-radius:var(--radius);border:1.5px solid var(--color-border);background:var(--color-white);width:100%;color:var(--color-text);font-size:.95rem;font-family:var(--font-body,inherit);padding:.85rem 1rem;transition:border-color .15s,box-shadow .15s}.word-input:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 3px #4255ff1a}.word-input::placeholder{color:var(--color-muted);font-style:italic}.word-pronunciation{color:var(--color-muted);text-align:center;background:var(--color-surface-dark);border-radius:var(--radius);border:1px solid var(--color-border);font-size:1.3rem;font-style:italic;font-family:var(--font-mono);letter-spacing:.05em;padding:.5rem 1rem}.word-drill-container{background:var(--color-white);border-radius:var(--radius);border:1px solid var(--color-border);box-shadow:var(--shadow-card);flex-direction:column;align-items:center;gap:1.5rem;padding:2rem 1rem;display:flex}.word-display{color:var(--color-primary);text-align:center;padding:1rem;font-size:3rem;font-weight:700}.word-passed-message{color:var(--color-success);border-radius:var(--radius);background:#23b26d1a;border:1px solid #23b26d4d;padding:1rem;font-size:1.1rem;font-weight:600}.word-passed-card{border-radius:var(--radius);background:var(--color-white);border:2px solid var(--color-success);text-align:center;flex-direction:column;align-items:center;gap:1rem;width:100%;max-width:500px;padding:2rem 1.5rem;display:flex;box-shadow:0 4px 16px #23b26d26}.word-passed-icon{font-size:3.5rem}.word-passed-score{color:var(--color-success);font-size:3rem;font-weight:800;line-height:1}.word-passed-title{color:var(--color-text);font-size:1.5rem;font-weight:700}.word-passed-message{color:var(--color-muted);max-width:400px;font-size:.95rem;line-height:1.6}.word-passed-message strong{color:var(--color-primary);font-weight:600}.btn-continue-sentences{border-radius:var(--radius-full);background:var(--color-success);color:var(--color-white);border:2px solid var(--color-success);cursor:pointer;align-items:center;gap:.5rem;margin-top:.5rem;padding:.75rem 1.75rem;font-size:1rem;font-weight:600;transition:background .15s,transform .1s;display:flex;box-shadow:0 4px 12px #23b26d4d}.btn-continue-sentences:hover{background:#1e9e5f;border-color:#1e9e5f;transform:translateY(-1px)}.spin{animation:.8s linear infinite spin}@media(max-width:600px){.topic-grid{grid-template-columns:repeat(2,1fr)}.level-pills{flex-direction:column}.btn-generate{width:100%}.lang-chips{flex-direction:column}.sentence-diff-grid{grid-template-columns:1fr;gap:.45rem}.sentence-diff-label{padding-top:0}}.diary-editor-content p{margin:.125em 0}.diary-editor-content h2{margin:.75em 0 .25em;font-size:1.25rem;font-weight:700}.diary-editor-content h3{margin:.5em 0 .25em;font-size:1.0625rem;font-weight:600}.diary-editor-content ul,.diary-editor-content ol{margin:.25em 0;padding-left:1.5em}.diary-editor-content blockquote{border-left:3px solid var(--color-primary);color:var(--color-muted);margin:.5em 0;padding-left:1em;font-style:italic}.diary-editor-content code{background:var(--color-surface);font-family:var(--font-mono);border-radius:4px;padding:.125em .375em;font-size:.875em}.diary-editor-content .is-editor-empty:first-child:before{content:attr(data-placeholder);float:left;color:var(--color-muted);pointer-events:none;height:0}.diary-content h2{margin:.5em 0 .25em;font-size:1.125rem;font-weight:700}.diary-content h3{margin:.375em 0 .25em;font-size:1rem;font-weight:600}.diary-content blockquote{border-left:3px solid var(--color-primary);color:var(--color-muted);margin:.5em 0;padding-left:.875em;font-style:italic}.diary-content ul,.diary-content ol{margin:.25em 0;padding-left:1.5em}.diary-content code{background:var(--color-surface);font-family:var(--font-mono);border-radius:4px;padding:.125em .375em;font-size:.875em}.diary-content p{margin:.125em 0}.poll-option-btn:hover:not(:disabled){background:#4255ff0d!important}.poll-option-btn:active:not(:disabled){transform:translateY(1px)}.poll-result-bar{transition:all .2s}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}.listening-page{position:relative;min-height:100vh;overflow:hidden;background:radial-gradient(circle at top left,rgba(66,85,255,.16),transparent 28%),radial-gradient(circle at top right,rgba(124,58,237,.14),transparent 30%),linear-gradient(180deg,#f7f8ff,#eef2ff 44%,#f6f7fb)}.listening-page:before,.listening-page:after{content:"";position:absolute;border-radius:50%;pointer-events:none;filter:blur(10px)}.listening-page:before{top:-120px;left:-90px;width:280px;height:280px;background:#4255ff1f}.listening-page:after{right:-120px;bottom:10%;width:300px;height:300px;background:#ffcd1f1f}.listening-page-shell{position:relative;z-index:1;max-width:780px;margin:0 auto;padding:2rem 1rem 3rem}.listening-card{position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.72);border-radius:30px;background:linear-gradient(180deg,#fffffff5,#ffffffeb);box-shadow:0 24px 60px #4255ff1f,0 10px 24px #0f172a0f;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.listening-card:before{content:"";position:absolute;inset:0 0 auto;height:140px;background:linear-gradient(135deg,#4255ff24,#7c3aed14,#ffcd1f14);pointer-events:none}.listening-card-inner{position:relative;z-index:1;padding:2rem}.listening-eyebrow{display:inline-flex;align-items:center;gap:.45rem;padding:.45rem .8rem;border-radius:var(--radius-full);background:#ffffffe6;border:1px solid rgba(66,85,255,.12);color:var(--color-primary);font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase}.listening-hero{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:1rem;align-items:end;margin-top:1rem;margin-bottom:1.5rem}.listening-title{margin:0;font-size:clamp(1.85rem,4vw,2.35rem);font-weight:800;letter-spacing:-.03em}.listening-subtitle{margin:.5rem 0 0;color:var(--color-muted);font-size:.98rem}.listening-stat-pill{display:inline-flex;align-items:center;gap:.45rem;padding:.75rem 1rem;border-radius:var(--radius-full);background:#ffffffeb;border:1px solid rgba(66,85,255,.12);color:var(--color-text);font-size:.85rem;font-weight:700;white-space:nowrap}.listening-panel-grid{display:grid;gap:1rem}.listening-panel{border:1px solid rgba(226,232,240,.9);border-radius:24px;background:#ffffffe6;box-shadow:0 10px 30px #0f172a0d}.listening-panel-soft{background:linear-gradient(180deg,#fffc,#edefffc7)}.listening-section-label{display:inline-flex;align-items:center;gap:.45rem;margin-bottom:.8rem;color:var(--color-muted);font-size:.74rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.listening-option-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.75rem}.listening-choice{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.95rem 1rem;border:1px solid var(--color-border);border-radius:20px;background:#ffffffdb;color:var(--color-text);font-weight:700;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background .18s ease}.listening-choice:hover{transform:translateY(-1px);box-shadow:0 12px 24px #4255ff14}.listening-choice.is-active{border-color:#4255ff57;background:linear-gradient(180deg,#4255ff24,#fffffff2);color:var(--color-primary);box-shadow:0 14px 28px #4255ff1f}.listening-topic-grid{display:flex;flex-wrap:wrap;gap:.7rem}.listening-topic-chip{display:inline-flex;align-items:center;gap:.55rem;padding:.75rem 1rem;border:1px solid var(--color-border);border-radius:var(--radius-full);background:#ffffffdb;color:var(--color-text);font-weight:600;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background .18s ease}.listening-topic-chip:hover{transform:translateY(-1px);box-shadow:0 12px 20px #0f172a12}.listening-topic-chip.is-active{border-color:#4255ff57;background:#4255ff1a;color:var(--color-primary);box-shadow:0 12px 24px #4255ff1f}.listening-topic-chip-delete{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border:none;border-radius:999px;background:#ff47471a;color:var(--color-danger);cursor:pointer;transition:transform .15s ease,background .15s ease}.listening-topic-chip-delete:hover{transform:scale(1.04);background:#ff474729}.listening-custom-row{display:flex;gap:.65rem;margin-top:.9rem}.listening-input,.listening-textarea{width:100%;border:1px solid rgba(203,213,225,.9);border-radius:20px;background:#fffffff2;color:var(--color-text);font:inherit;outline:none;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}.listening-input{min-height:52px;padding:0 1rem}.listening-textarea{min-height:160px;padding:1rem 1.05rem;resize:vertical;line-height:1.6}.listening-input:focus,.listening-textarea:focus{border-color:#4255ff66;box-shadow:0 0 0 4px #4255ff1f}.listening-primary-button,.listening-secondary-button,.listening-ghost-button,.listening-audio-button{border:none;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease}.listening-primary-button,.listening-secondary-button,.listening-ghost-button{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;min-height:56px;padding:0 1.3rem;border-radius:var(--radius-full);font-size:1rem;font-weight:700}.listening-primary-button{color:#fff;background:linear-gradient(135deg,var(--color-primary),#6366f1);box-shadow:0 14px 30px #4255ff47}.listening-primary-button:hover{transform:translateY(-1px);box-shadow:0 18px 34px #4255ff52}.listening-secondary-button{color:var(--color-text);border:1px solid rgba(203,213,225,.9);background:#ffffffdb}.listening-secondary-button:hover,.listening-ghost-button:hover{transform:translateY(-1px);box-shadow:0 12px 24px #0f172a0f}.listening-ghost-button{color:var(--color-muted);border:1px dashed rgba(203,213,225,.95);background:#ffffffa6}.listening-primary-button:disabled,.listening-secondary-button:disabled,.listening-ghost-button:disabled,.listening-audio-button:disabled,.listening-choice:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}.listening-actions-stack{display:flex;flex-direction:column;gap:.8rem}.listening-audio-button{display:flex;align-items:center;justify-content:center;gap:.85rem;width:100%;min-height:88px;padding:1rem 1.5rem;border-radius:28px;color:#fff;background:linear-gradient(135deg,#4255ff,#5468ff 45%,#6d5efc);box-shadow:0 18px 38px #4255ff47}.listening-audio-button:hover{transform:translateY(-1px) scale(1.005)}.listening-audio-icon{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:18px;background:#ffffff2e}.listening-audio-text{display:flex;flex-direction:column;align-items:flex-start;gap:.15rem;text-align:left}.listening-audio-title{font-size:1.18rem;font-weight:800}.listening-audio-subtitle{font-size:.85rem;color:#fffc}.listening-hint-card,.listening-feedback-card,.listening-answer-card,.listening-score-summary,.listening-generating-card,.listening-pro-card{padding:1.2rem 1.25rem}.listening-hint-card{border:1px solid rgba(255,205,31,.3);border-radius:24px;background:linear-gradient(135deg,#fffcebfa,#fff8dceb)}.listening-word-skeleton{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.85rem}.listening-word-chip{min-width:3.3rem;padding:.55rem .7rem;border-radius:var(--radius-full);background:#ffffffe6;border:1px solid rgba(255,205,31,.32);font-weight:700;letter-spacing:.12em;text-align:center}.listening-meta-row{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1.1rem}.listening-progress-strip{display:flex;align-items:center;gap:.65rem;margin-top:.35rem}.listening-progress-bar{position:relative;flex:1;height:10px;overflow:hidden;border-radius:var(--radius-full);background:#94a3b82e}.listening-progress-fill{height:100%;border-radius:inherit;transition:width .45s ease}.listening-feedback-card{border-radius:24px}.listening-answer-card{border:1px solid rgba(66,85,255,.12);border-radius:22px;background:linear-gradient(180deg,#fffffff0,#edefffbf)}.listening-score-dots{display:grid;grid-template-columns:repeat(auto-fit,minmax(56px,1fr));gap:.75rem}.listening-score-dot{display:flex;align-items:center;justify-content:center;min-height:60px;border-radius:20px;font-size:.95rem;font-weight:800}.listening-result-top{display:flex;flex-direction:column;align-items:center;text-align:center;gap:1rem;margin-bottom:1.5rem}.listening-result-icon{display:inline-flex;align-items:center;justify-content:center;width:92px;height:92px;border-radius:30px}.listening-score-summary{border-radius:28px;background:linear-gradient(180deg,#ffffffeb,#edefffd1);border:1px solid rgba(226,232,240,.92)}.listening-score-number{font-size:clamp(3rem,10vw,4.75rem);line-height:1;font-weight:800;letter-spacing:-.04em}.listening-generating-wrap,.listening-pro-wrap{max-width:620px;margin:0 auto}.listening-config-topic-box{padding:1rem;border:1px solid var(--color-border);border-radius:22px;background:#ffffffd1;box-shadow:0 8px 20px #0f172a0a}.listening-config-topic-grid{display:flex;flex-wrap:wrap;gap:.65rem}.listening-config-topic-chip{display:inline-flex;align-items:center;gap:.5rem;padding:.78rem .95rem;border:1px solid rgba(203,213,225,.95);border-radius:999px;background:#fffffff2;color:var(--color-text);font-size:.92rem;font-weight:600;cursor:pointer;transition:all .18s ease}.listening-config-topic-chip:hover{transform:translateY(-1px);box-shadow:0 10px 22px #4255ff14}.listening-config-topic-chip.is-active{border-color:#4255ff42;background:#4255ff1a;color:var(--color-primary)}.listening-config-topic-delete{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:999px;background:#ff47471a;color:var(--color-danger)}.listening-config-topic-add{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;margin-top:.85rem;padding:.82rem 1rem;border:1px dashed rgba(66,85,255,.24);border-radius:16px;background:#4255ff0d;color:var(--color-primary);font-size:.92rem;font-weight:700;cursor:pointer;transition:all .18s ease}.listening-config-topic-add:hover{background:#4255ff17}.listening-config-topic-actions{display:flex;gap:.65rem;margin-top:.9rem}.listening-config-topic-input{min-height:54px}.listening-config-topic-btn{width:auto;min-width:102px;flex-shrink:0}.listening-generating-card,.listening-pro-card{text-align:center}.listening-spinner-shell,.listening-pro-icon{display:inline-flex;align-items:center;justify-content:center;width:84px;height:84px;border-radius:28px;margin-bottom:1rem}.listening-spinner-shell{background:#4255ff1a;color:var(--color-primary)}.listening-pro-icon{background:linear-gradient(135deg,#4255ff24,#7c3aed29);color:var(--color-primary)}@media(max-width:720px){.listening-page-shell{padding:1rem .75rem 2rem}.listening-card{border-radius:26px}.listening-card-inner{padding:1.25rem}.listening-hero,.listening-option-row{grid-template-columns:1fr}.listening-custom-row{flex-direction:column}.listening-audio-button{min-height:78px;padding:1rem 1.1rem}.listening-audio-icon{width:46px;height:46px;border-radius:16px}.listening-config-topic-actions{flex-direction:column}.listening-config-topic-btn{width:100%}}