:root{--bg-primary: #0f1117;--bg-base: var(--bg-primary);--bg-secondary: #161822;--bg-card: #1c1f2e;--bg-card-hover: #232640;--bg-surface: #252842;--bg-glass: rgba(13, 15, 23, .7);--bg-glass-heavy: rgba(18, 20, 32, .95);--bg-match-bar: rgba(255, 255, 255, .05);--border: #2a2d45;--border-light: #353860;--border-glass: rgba(255, 255, 255, .08);--border-glass-light: rgba(255, 255, 255, .05);--border-glow: rgba(255, 255, 255, .1);--text-primary: #f0f0f5;--text-secondary: #9396b0;--text-muted: #8b8ea8;--text-on-accent: #ffffff;--accent-blue: #4f8cff;--accent-blue-dim: rgba(79, 140, 255, .15);--accent-blue-dim-heavy: rgba(79, 140, 255, .4);--accent-blue-featured: #232640;--accent-green: #34d399;--accent-green-dim: rgba(52, 211, 153, .15);--accent-amber: #f59e0b;--accent-amber-dim: rgba(245, 158, 11, .15);--accent-purple: #a78bfa;--accent-purple-dim: rgba(167, 139, 250, .15);--accent-purple-dim-light: rgba(167, 139, 250, .06);--accent-red: #f87171;--accent-red-dim: rgba(248, 113, 113, 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4px;--spacing-1-5: 6px;--spacing-2: 8px;--spacing-2-5: 10px;--spacing-3: 12px;--spacing-3-5: 14px;--spacing-4: 16px;--spacing-4-5: 18px;--spacing-5: 20px;--spacing-6: 24px;--spacing-7: 28px;--spacing-8: 32px;--spacing-9: 36px;--spacing-10: 40px;--spacing-11: 44px;--spacing-12: 48px;--radius-xs: 3px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 20px;--radius-2xl: 24px;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 4px 20px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .4);--shadow-xl: 0 10px 40px rgba(0, 0, 0, .6);--shadow-featured: 0 20px 40px rgba(0, 0, 0, .4);--shadow-phone: 0 20px 80px rgba(0, 0, 0, .8);--shadow-glow-blue: 0 2px 12px rgba(79, 140, 255, .3);--width-dialog: 440px;--width-card: 280px;--width-card-sm: 260px;--width-card-mobile: 180px;--width-chat-max: 720px;--width-login-panel: 480px;--sidebar-width: 240px;--word-detail-width: 360px;--max-content-width: 1200px;--phone-width: 390px;--phone-height: 844px;--phone-border: 8px;--notch-width: 120px;--notch-height: 28px;--z-sidebar: 100;--z-mobile-nav: 1000;--z-mobile-header: 1001;--z-notch: 1002;--z-dialog: 2000;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-smooth: .4s cubic-bezier(.16, 1, .3, 1);--icon-sm: 18px;--icon-md: 22px;--icon-lg: 34px;--blur-normal: blur(20px);--blur-light: blur(4px);--phone-frame-color: #1a1c2e;--phone-frame-radius: 40px;--overlay-dim: rgba(0, 0, 0, .6);--overlay-subtle: rgba(255, 255, 255, .05);--overlay-faint: rgba(255, 255, 255, .03);--spotlight-color: rgba(255, 253, 245, .15);--spotlight-color-strong: rgba(255, 253, 245, .6);--border-green: rgba(52, 211, 153, .3);--border-red: rgba(248, 113, 113, .3);--border-blue-hover: rgba(79, 140, 255, .2);--accent-green-hover: rgba(52, 211, 153, .25);--accent-red-hover: rgba(248, 113, 113, .25);--shadow-glow-blue-strong: 0 4px 20px rgba(79, 140, 255, .45);--shadow-glow-green: 0 4px 20px rgba(52, 211, 153, .2);--shadow-glow-red: 0 4px 20px rgba(248, 113, 113, .2)}[data-theme=light]{--bg-primary: #f6f4ef;--bg-base: var(--bg-primary);--bg-secondary: #f3f1ec;--bg-card: #ffffff;--bg-card-hover: #f7f6f3;--bg-surface: #eceae5;--bg-glass: rgba(250, 250, 248, .78);--bg-glass-heavy: rgba(243, 242, 239, .88);--bg-match-bar: rgba(0, 0, 0, .04);--border: rgba(0, 0, 0, .08);--border-light: rgba(0, 0, 0, .05);--border-glass: rgba(0, 0, 0, .12);--border-glass-light: rgba(0, 0, 0, .08);--border-glow: rgba(0, 0, 0, .1);--text-primary: #1c1917;--text-secondary: #57534e;--text-muted: #6b6560;--text-on-accent: #ffffff;--accent-blue: #3b72d0;--accent-blue-dim: rgba(59, 114, 208, .1);--accent-blue-dim-heavy: rgba(59, 114, 208, .22);--accent-blue-featured: #e4ecff;--accent-green: #1a8a60;--accent-green-dim: rgba(26, 138, 96, .1);--accent-amber: #c2710a;--accent-amber-dim: rgba(194, 113, 10, .14);--accent-purple: #7048c6;--accent-purple-dim: rgba(112, 72, 198, .1);--accent-purple-dim-light: rgba(112, 72, 198, .05);--accent-red: #c93a3a;--accent-red-dim: rgba(201, 58, 58, .1);--accent-pink: #c74b82;--accent-pink-dim: rgba(199, 75, 130, .1);--accent-indigo: #4f46b8;--accent-green-deep: #1d7d52;--accent-purple-deep: #6344a8;--accent-amber-deep: #a05c08;--bg-login-start: #f3f2ef;--bg-login-mid: #ebe8e2;--bg-login-end: #e5e2db;--bg-card-back-start: #edeae5;--bg-card-back-end: #e3dfd8;--word-new-bg: rgba(59, 114, 208, .1);--word-learning-bg: rgba(168, 96, 15, .1);--word-known-bg: rgba(26, 138, 96, .07);--shadow-sm: 0 1px 2px rgba(28, 25, 23, .07), 0 2px 6px rgba(28, 25, 23, .1);--shadow-md: 0 2px 4px rgba(28, 25, 23, .06), 0 6px 16px rgba(28, 25, 23, .1);--shadow-lg: 0 4px 6px rgba(28, 25, 23, .05), 0 12px 28px rgba(28, 25, 23, .12);--shadow-xl: 0 8px 10px rgba(28, 25, 23, .06), 0 24px 48px rgba(28, 25, 23, .14);--shadow-featured: 0 8px 16px rgba(28, 25, 23, .08), 0 24px 48px rgba(28, 25, 23, .12);--shadow-phone: 0 20px 60px rgba(28, 25, 23, .14);--shadow-glow-blue: 0 2px 12px rgba(59, 114, 208, .18);--phone-frame-color: #d8d5cf;--overlay-dim: rgba(0, 0, 0, .35);--overlay-subtle: rgba(0, 0, 0, .03);--overlay-faint: rgba(0, 0, 0, .015);--spotlight-color: rgba(250, 180, 20, .25);--spotlight-color-strong: rgba(250, 180, 20, .55);--border-green: rgba(26, 138, 96, .25);--border-red: rgba(201, 58, 58, .25);--border-blue-hover: rgba(59, 114, 208, .12);--accent-green-hover: rgba(26, 138, 96, .12);--accent-red-hover: rgba(201, 58, 58, .12);--shadow-glow-blue-strong: 0 4px 20px rgba(59, 114, 208, .18);--shadow-glow-green: 0 4px 20px rgba(26, 138, 96, .12);--shadow-glow-red: 0 4px 20px rgba(201, 58, 58, .12)}[data-theme=light] .r-color-1qouj9t{color:var(--text-primary)!important}[data-theme=light] .r-color-b6d9lr{color:var(--text-secondary)!important}[data-theme=light] .r-color-nmlpb8{color:var(--text-muted)!important}[data-theme=light] .r-color-51wpwh{color:var(--accent-blue)!important}[data-theme=light] .r-color-1bjbyxb{color:var(--accent-green)!important}[data-theme=light] 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var(--radius-xl);position:absolute;top:0;left:50%;transform:translate(-50%);z-index:var(--z-notch);flex-shrink:0}.app-shell.native-mobile .main-content{width:100%;max-width:100%;height:100vh;height:100dvh;position:relative;overflow:hidden;display:flex;flex-direction:column}.app-shell.native-mobile .mobile-nav{margin-bottom:max(env(safe-area-inset-bottom,0px),var(--spacing-4))}.app-shell.focus-mode .page-content,.app-shell.focus-mode [id$=-content]{padding-bottom:var(--spacing-2)}@media(max-width:1024px){.main-content{margin-left:0;padding:var(--spacing-4);width:100%;max-width:100%}}@media(max-width:500px){.phone-frame{width:100%;height:100vh;margin:0;border:none;border-radius:0}}.word{display:inline;padding:2px 0;border-radius:2px;cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast);position:relative;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.word.new{color:var(--word-new)}.word.learning{border-bottom:2px dashed 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var(--spacing-4);margin-bottom:var(--spacing-4);border-radius:var(--radius-lg);background:var(--accent-blue-dim);border:1px solid var(--accent-blue);color:var(--text-primary);text-decoration:none;font-size:var(--text-sm);transition:filter var(--transition-fast)}.review-banner:hover{filter:brightness(1.15)}.review-banner-cta{font-weight:600;color:var(--accent-blue)}.review-banner-done{justify-content:center;background:var(--overlay-subtle);border-color:var(--border);color:var(--text-muted)}._sidebar_27oy2_1{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:var(--z-sidebar);padding:var(--spacing-5) 0;transition:transform var(--transition-normal),width var(--transition-normal);overflow-y:auto;scrollbar-width:none}._sidebar_27oy2_1::-webkit-scrollbar{display:none}.focus-mode 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var(--spacing-3);border-radius:var(--radius-sm);color:var(--text-secondary);font-size:var(--text-sm);font-weight:var(--font-medium);cursor:pointer;transition:color var(--transition-fast),background-color var(--transition-fast)}._profileMenuItem_27oy2_170:hover{background:var(--bg-surface);color:var(--text-primary)}._profileMenuItem_27oy2_170 svg{flex-shrink:0}._profileMenuLogout_27oy2_192:hover{color:var(--accent-red)}._profileMenuLogout_27oy2_192:hover svg{stroke:var(--accent-red)}._profileMenuDivider_27oy2_199{height:1px;background:var(--border);margin:var(--spacing-1) var(--spacing-2)}._mobileHeader_27oy2_205{position:sticky;top:0;padding:var(--spacing-5) var(--spacing-4);background:var(--bg-base);z-index:var(--z-mobile-header);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid transparent;flex-shrink:0;transition:padding var(--transition-fast),border-color var(--transition-fast)}@supports (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px)){._mobileHeader_27oy2_205{background:var(--bg-glass);backdrop-filter:var(--blur-normal);-webkit-backdrop-filter:var(--blur-normal)}}._mobileHeaderScrolled_27oy2_228{padding:var(--spacing-2) var(--spacing-4);border-bottom-color:var(--border-glass-light)}.focus-mode ._mobileHeader_27oy2_205{background:transparent;border-bottom:none}.native-mobile ._mobileHeader_27oy2_205{padding-top:max(env(safe-area-inset-top,0px),var(--spacing-2))}._mobileHeaderAvatar_27oy2_242{width:var(--icon-lg);height:var(--icon-lg);border-radius:var(--radius-md);background:var(--gradient-logo);display:flex;align-items:center;justify-content:center;font-weight:var(--font-bold);font-size:var(--text-xs);cursor:pointer;overflow:hidden;transition:border-color var(--transition-fast),box-shadow var(--transition-fast);border:1px solid var(--border-glow)}._mobileHeaderAvatar_27oy2_242 img{width:100%;height:100%;border-radius:var(--radius-md);object-fit:cover}._mobileHeaderAvatar_27oy2_242:hover{box-shadow:0 0 0 3px var(--accent-blue-dim)}._mobileHeader_27oy2_205 ._profileMenu_27oy2_145{top:calc(100% + var(--spacing-2));bottom:auto;left:auto;right:0;width:180px}._mobileHeaderActions_27oy2_279{display:flex;gap:var(--spacing-2);align-items:center}._iconLink_27oy2_285{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:var(--spacing-1);border-radius:var(--radius-full);transition:color var(--transition-fast),background-color var(--transition-fast);display:flex;align-items:center}._iconLink_27oy2_285:hover{color:var(--accent-blue);background:var(--accent-blue-dim)}._mobileReadingHeader_27oy2_303{display:flex;align-items:center;gap:var(--spacing-4);justify-content:flex-start;width:100%}._mobileReadingHeader_27oy2_303 h1{font-size:var(--text-base);font-weight:var(--font-extrabold);letter-spacing:var(--tracking-normal);color:var(--text-primary)}._mobileReadingActions_27oy2_318{margin-left:auto;display:flex;align-items:center}._flexFill_27oy2_324{flex:1}._mobileStats_27oy2_328{display:flex;gap:var(--spacing-2)}._statPill_27oy2_333{padding:var(--spacing-1) var(--spacing-2);font-size:var(--text-xs);font-weight:var(--font-bold);border-radius:var(--radius-full);display:flex;align-items:center;gap:var(--spacing-1);text-decoration:none;cursor:pointer}._statPillStreak_27oy2_345{color:var(--accent-amber);background:var(--accent-amber-dim)}._statPillMastered_27oy2_350{color:var(--accent-green);background:var(--accent-green-dim)}._mobileNav_27oy2_356{margin:0 var(--spacing-4) var(--spacing-4);z-index:var(--z-mobile-nav);background:var(--bg-base);border:1px solid var(--border-glass);border-radius:var(--radius-2xl);padding:var(--spacing-2-5) var(--spacing-3);box-shadow:var(--shadow-xl);justify-content:space-around;display:flex;flex-shrink:0}@supports (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px)){._mobileNav_27oy2_356{background:var(--bg-glass-heavy);backdrop-filter:var(--blur-normal);-webkit-backdrop-filter:var(--blur-normal)}}.focus-mode ._mobileNav_27oy2_356{display:none!important}._mobileNavItem_27oy2_380{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-1);padding:var(--spacing-2);color:var(--text-muted);transition:color var(--transition-fast)}._mobileNavItem_27oy2_380 svg{width:22px;height:22px}._mobileNavItem_27oy2_380._active_27oy2_88{color:var(--accent-blue)}._mobileNavItem_27oy2_380._active_27oy2_88 svg{filter:drop-shadow(0 0 8px var(--accent-blue-dim-heavy))}._toggle_1bahn_1{position:fixed;bottom:var(--spacing-6);right:var(--spacing-6);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-full);padding:var(--spacing-1);z-index:var(--z-dialog);display:flex;gap:var(--spacing-1);box-shadow:var(--shadow-lg)}@media(max-width:1024px){._toggle_1bahn_1{display:none}}._btn_1bahn_21{width:var(--spacing-9);height:var(--spacing-9);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;background:none;border:none;color:var(--text-muted);cursor:pointer;transition:color var(--transition-fast),background-color var(--transition-fast)}._btn_1bahn_21:hover{color:var(--text-primary);background:var(--bg-surface)}._btnActive_1bahn_38{background:var(--accent-blue);color:var(--text-primary)!important;box-shadow:var(--shadow-glow-blue)}._container_7s4cl_1{position:fixed;bottom:var(--spacing-6);left:50%;transform:translate(-50%);z-index:var(--z-dialog)}._toast_7s4cl_9{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--spacing-4);box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:var(--spacing-3)}._message_7s4cl_20{font-size:var(--text-sm);color:var(--text-primary);white-space:nowrap}._actions_7s4cl_26{display:flex;gap:var(--spacing-2)}._button_7s4cl_31{padding:var(--spacing-1) var(--spacing-3);border-radius:var(--radius-md);border:none;font-size:var(--text-sm);font-weight:var(--font-medium);cursor:pointer;background:var(--accent-blue);color:var(--text-on-accent);transition:opacity var(--transition-fast)}._button_7s4cl_31:hover{opacity:.85}._buttonClose_7s4cl_46{background:var(--bg-surface);color:var(--text-muted)}._buttonClose_7s4cl_46:hover{color:var(--text-primary)}._container_1xyb7_1{position:fixed;bottom:var(--spacing-6);left:50%;transform:translate(-50%);z-index:var(--z-dialog)}._toast_1xyb7_9{background:var(--bg-card);border:1px solid var(--accent-green);border-radius:var(--radius-lg);padding:var(--spacing-4);box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:var(--spacing-3)}._message_1xyb7_20{font-size:var(--text-sm);color:var(--text-primary);white-space:nowrap}._actions_1xyb7_26{display:flex;gap:var(--spacing-2)}._button_1xyb7_31{padding:var(--spacing-1) var(--spacing-3);border-radius:var(--radius-md);border:none;font-size:var(--text-sm);font-weight:var(--font-medium);cursor:pointer;background:var(--accent-green);color:var(--text-on-accent);transition:opacity var(--transition-fast)}._button_1xyb7_31:hover{opacity:.85}._buttonClose_1xyb7_46{background:var(--bg-surface);color:var(--text-muted)}._buttonClose_1xyb7_46:hover{color:var(--text-primary)}