.invisible{visibility:hidden}.collapse{visibility:collapse}.absolute{position:absolute}.relative{position:relative}.block{display:block}.inline{display:inline}.flex{display:flex}.inline-flex{display:inline-flex}.table{display:table}.grid{display:grid}.contents{display:contents}.hidden{display:none}.w-full{width:100%}.transform{transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}@keyframes spin{to{transform:rotate(360deg)}}.animate-spin{animation:spin 1s linear infinite}.border{border-width:1px}.uppercase{text-transform:uppercase}.italic{font-style:italic}.tabular-nums{--tw-numeric-spacing: tabular-nums;font-variant-numeric:var(--tw-ordinal) var(--tw-slashed-zero) var(--tw-numeric-figure) var(--tw-numeric-spacing) var(--tw-numeric-fraction)}.blur{--tw-blur: blur(8px);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)}.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,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,backdrop-filter;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}:root{--bg-app: #f7f8fa;--bg-sidebar: #0e0e0f;--bg-card: #ffffff;--bg-card-hover: #f3f4f6;--bg-card-glass: #ffffff;--bg-input: #ffffff;--bg-navbar: #0e0e0f;--border-neutral: #e4e7ec;--overlay-hover: rgba(15, 17, 21, .05);--overlay-subtle: rgba(15, 17, 21, .07);--scrollbar-thumb: #d5d9e0;--card-blur: 0px;--chrome: #0e0e0f;--chrome-hover: #1b1b1e;--chrome-active: #2a2a2e;--chrome-text: #d4d4d8;--chrome-muted: #8b8b93;--chrome-line: rgba(255, 255, 255, .08);--accent-rgb: 15, 17, 21;--copper-primary: #0e0e0f;--copper-light: #3f4451;--copper-bright: #0f1115;--copper-dark: #000000;--copper-border: rgba(15, 17, 21, .12);--copper-border-strong: rgba(15, 17, 21, .22);--copper-glow: 0 1px 2px rgba(15, 17, 21, .06);--copper-glow-subtle: 0 1px 2px rgba(15, 17, 21, .04);--copper-gradient: linear-gradient(135deg, #26262a 0%, #0e0e0f 100%);--copper-gradient-hover: linear-gradient(135deg, #34343a 0%, #17171a 100%);--dark-gradient: linear-gradient(180deg, rgba(30, 29, 27, .95) 0%, rgba(15, 14, 13, .98) 100%);--btn-text: #ffffff;--bar-fill: #059669;--gold-rgb: 194, 160, 99;--gold-text: #7a5f2c;--card-hover-border: rgba(194, 160, 99, .5);--card-hover-shadow: 0 14px 32px -16px rgba(15, 17, 21, .4), 0 0 0 1px rgba(194, 160, 99, .22);--t1-bg: #ede9fe;--t1-fg: #6d28d9;--t2-bg: #e0f2fe;--t2-fg: #0369a1;--t3-bg: #d1fae5;--t3-fg: #047857;--t4-bg: #fef3c7;--t4-fg: #b45309;--maroon: #7a2a2a;--maroon-bg: rgba(122, 42, 42, .08);--maroon-border: rgba(122, 42, 42, .3);--text-white: #0f1115;--text-ivory: #1a1d24;--text-secondary: #4b5262;--text-muted: #7a8194;--text-faint: #a3a9b8;--success: #059669;--success-glow: rgba(5, 150, 105, .15);--warning: #d97706;--danger: #dc2626;--info: #0284c7;--font-serif: "Bodoni Moda", "Playfair Display", Georgia, serif;--font-brand: "Cinzel", "Trajan Pro", "Bodoni Moda", Georgia, serif;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 14px;--radius-full: 9999px;--shadow-card: 0 1px 2px rgba(15, 17, 21, .05);--shadow-pop: 0 14px 30px -14px rgba(15, 17, 21, .2), 0 0 0 1px var(--border-neutral)}:root[data-theme=dark]{--bg-app: #171615;--bg-sidebar: #121110;--bg-card: #201f1d;--bg-card-hover: #292825;--bg-card-glass: rgba(32, 31, 29, .9);--bg-input: #1c1b19;--bg-navbar: rgba(10, 10, 9, .97);--border-neutral: rgba(255, 255, 255, .1);--overlay-hover: rgba(255, 255, 255, .05);--overlay-subtle: rgba(255, 255, 255, .08);--scrollbar-thumb: 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.14);--maroon-border: rgba(193, 122, 122, .35);--text-white: #f5f4f2;--text-ivory: #e8e6e2;--text-secondary: #c2beb6;--text-muted: #928d84;--text-faint: #5c5852;--success: #10b981;--success-glow: rgba(16, 185, 129, .2);--warning: #f59e0b;--danger: #ef4444;--info: #38bdf8;--shadow-card: 0 6px 20px -12px rgba(0, 0, 0, .5), 0 0 0 1px var(--border-neutral);--shadow-pop: 0 14px 32px -16px rgba(0, 0, 0, .55), 0 0 0 1px var(--border-neutral)}.dark-surface,.tool-viewer-modal,.video-container{--accent-rgb: 194, 160, 99;--copper-primary: #c2a063;--copper-light: #d9bc85;--copper-bright: #e0c896;--copper-dark: #6e5730;--copper-border: rgba(194, 160, 99, .28);--copper-border-strong: rgba(194, 160, 99, .45);--copper-gradient: linear-gradient(135deg, #d9bc85 0%, #c2a063 50%, #8a6d3d 100%);--copper-gradient-hover: linear-gradient(135deg, #e6d2a8 0%, #cbaa71 50%, #a3813f 100%);--btn-text: #201f1d;--text-white: #f5f4f2;--text-ivory: #e8e6e2;--text-secondary: #c2beb6;--text-muted: #928d84;--text-faint: 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10px;font-size:.68rem;font-weight:700;letter-spacing:.12em;color:var(--chrome-muted);text-transform:uppercase;white-space:nowrap;overflow:hidden}.side-item{display:flex;align-items:center;gap:16px;height:46px;padding:0 14px;border-radius:var(--radius-md);color:var(--chrome-text);text-decoration:none;font-size:.95rem;font-weight:600;white-space:nowrap;border:1px solid transparent;transition:background .15s ease,color .15s ease}.side-item:hover{background:var(--chrome-hover);color:#fff}.side-item.active{background:var(--chrome-active);color:#fff;font-weight:600}.side-item svg{flex-shrink:0;color:var(--chrome-muted)}.side-item.active svg,.side-item:hover svg{color:#fff}.side-label{flex:1;overflow:hidden;text-overflow:ellipsis;transition:opacity .15s ease}.side-badge{font-size:.65rem;font-weight:700;padding:2px 7px;border-radius:9999px;background:#ffffff1a;color:#fff}.sidebar-footer{padding:16px 18px;border-top:1px solid var(--chrome-line);min-width:240px;flex-shrink:0;transition:opacity 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