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var(--border)}.glass-header{-webkit-backdrop-filter:saturate(180%)blur(20px);background:var(--glass);border-bottom:.5px solid var(--border)}.category-badge{font-size:var(--type-label);letter-spacing:.03em;text-transform:uppercase;border-radius:20px;align-items:center;gap:4px;padding:4px 10px;font-weight:600;display:inline-flex}.point-tag{font-size:var(--type-label);border:1px solid var(--accent);border-radius:12px;padding:6px 12px;font-weight:600}@supports (color:color-mix(in lab, red, red)){.point-tag{border:1px solid color-mix(in oklch, var(--accent) 30%, transparent)}}.point-tag{background:var(--accent-soft);color:var(--accent);transition:transform .2s,background .2s}.point-tag:hover{background:var(--accent-soft);border-color:var(--accent)}.action-btn{background:var(--tag-bg);border:1px solid var(--border);cursor:pointer;border-radius:10px;justify-content:center;align-items:center;width:32px;height:32px;font-size:14px;transition:background .2s cubic-bezier(.4,0,.2,1),border-color .2s cubic-bezier(.4,0,.2,1),transform .2s cubic-bezier(.4,0,.2,1);display:flex}.action-btn:hover{background:var(--accent-soft);border-color:var(--accent);transform:scale(1.08)}.action-btn:active{transform:scale(.92)}.theme-btn{cursor:pointer;border:1.5px solid var(--border);background:var(--tag-bg);border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:18px;transition:transform .25s cubic-bezier(.4,0,.2,1),border-color .25s cubic-bezier(.4,0,.2,1);display:flex}.theme-btn:hover{transform:scale(1.12)}.theme-btn:active{transform:scale(.9)}.theme-btn.active{box-shadow:0 0 12px var(--accent-soft);border-width:2px;transform:scale(1.15)}.scroll-dot{border-radius:3px;width:6px;height:6px;transition:width .3s,background .3s}.scroll-dot.active{background:var(--accent);width:20px}.scroll-dot.inactive{background:var(--border)}.quiz-option{border:1.5px solid var(--border);background:var(--surface);border-radius:16px;padding:14px 16px;transition:border-color .25s cubic-bezier(.4,0,.2,1),background .25s cubic-bezier(.4,0,.2,1),transform .25s cubic-bezier(.4,0,.2,1)}.quiz-option:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft);transform:translate(4px)}.quiz-option:active:not(:disabled){transform:scale(.98)}.quiz-correct{background:var(--color-success)!important;color:#fff!important;border-color:var(--color-success)!important}.quiz-wrong{background:var(--color-error)!important;color:#fff!important;border-color:var(--color-error)!important}.surface-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;transition:background .25s cubic-bezier(.4,0,.2,1),box-shadow .25s cubic-bezier(.4,0,.2,1)}.surface-card:hover{background:var(--surface-hover);box-shadow:0 8px 30px oklch(30% .01 260/.12)}.surface-card:active{transform:scale(.98)}.brief-row{border:1px solid #0000;border-radius:20px;padding:12px;transition:background .2s,border-color .2s,transform .2s}.brief-row:hover{background:var(--surface-hover);border-color:var(--border);transform:translateY(-1px)}.reader-prose{color:var(--text)}.reader-prose h2{font-size:var(--type-title);letter-spacing:-.02em;margin:0 0 12px;line-height:1.2}.reader-prose p{font-size:var(--type-body);color:var(--text-secondary);margin:0;line-height:1.75}.reader-prose p+h2,.reader-prose h2+h2{margin-top:28px}.reader-prose h2+p,.reader-prose p+p{margin-top:14px}.progress-ring-circle{transform-origin:50%;transition:stroke-dashoffset .6s cubic-bezier(.4,0,.2,1);transform:rotate(-90deg)}@keyframes pulse-glow{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.05)}}.pulse-glow{animation:2s ease-in-out infinite pulse-glow}@keyframes confetti-fall{0%{opacity:1;transform:translate(0)rotate(0)}to{transform:translate(var(--confetti-x), var(--confetti-y)) rotate(var(--confetti-spin));opacity:0}}@keyframes slideUp{0%{opacity:0;transform:translateY(100%)}to{opacity:1;transform:translateY(0)}}.slide-up{animation:.35s cubic-bezier(.16,1,.3,1) slideUp}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.4s cubic-bezier(.16,1,.3,1) fadeIn}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.shimmer{background:linear-gradient(90deg, var(--tag-bg) 25%, var(--accent-soft) 50%, var(--tag-bg) 75%);background-size:200% 100%;animation:1.5s infinite shimmer}.soft-stop{background:radial-gradient(ellipse at center, var(--surface) 0%, var(--bg) 70%)}.catto-input{border:1.5px solid var(--border);background:var(--surface);color:var(--text);font-size:var(--type-body);border-radius:14px;outline:none;padding:10px 14px;font-family:inherit;transition:border-color .2s,box-shadow .2s}.catto-input::placeholder{color:var(--text-secondary)}.catto-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.btn-primary{background:var(--accent);color:#fff;font-size:var(--type-body);cursor:pointer;border:none;border-radius:14px;padding:10px 24px 10px 20px;font-family:inherit;font-weight:600;transition:opacity .2s,transform .2s}.btn-primary:hover{opacity:.88;transform:translateY(-1px)}.btn-primary:active{transform:scale(.97)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}button:focus:not(:focus-visible){outline:none}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.flip-feed{scroll-behavior:auto}.catto-card:hover{transform:none}}@property --tw-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-z{syntax:"*";inherits:false;initial-value:0}@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-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@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-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}@property --tw-scale-x{syntax:"*";inherits:false;initial-value:1}@property --tw-scale-y{syntax:"*";inherits:false;initial-value:1}@property --tw-scale-z{syntax:"*";inherits:false;initial-value:1}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@keyframes spin{to{transform:rotate(360deg)}}