:root{--brand-cyan: #4bc1eb;--brand-blue: #3d7bbf;--brand-navy: #3a52a0;--brand-violet: #654595;--grad: linear-gradient(120deg, #4bc1eb, #3a52a0 52%, #654595);--grad-soft: linear-gradient( 120deg, rgba(75, 193, 235, .16), rgba(58, 82, 160, .16) 52%, rgba(101, 69, 149, .16) );--color-bg: #f5f7fb;--color-surface: #ffffff;--color-surface-hover: #edf1f8;--color-border: #dde3ee;--color-text: #141a26;--color-text-muted: #5c6a82;--color-accent: #3d7bbf;--color-accent-text: #ffffff;--color-success: #16a34a;--color-success-bg: #dcfce7;--color-warning: #d97706;--color-warning-bg: #fef3c7;--color-danger: #dc2626;--color-danger-bg: #fee2e2;--radius: .625rem;--radius-sm: .375rem;--radius-lg: 1rem;--radius-xl: 1.375rem;--radius-pill: 999px;--shadow: 0 1px 3px rgba(16, 26, 48, .08);--shadow-lg: 0 12px 40px rgba(16, 26, 48, .18);--shadow-glow: 0 8px 30px rgba(61, 123, 191, .35);--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--sidebar-bg: #ffffff;--sidebar-surface: rgba(20, 26, 38, .05);--sidebar-border: #dde3ee;--sidebar-text: #141a26;--sidebar-muted: #5c6a82;--sidebar-active-bg: var(--grad-soft);--sidebar-active-text: var(--brand-blue);--color-sidebar-bg: var(--sidebar-bg);--focus-ring: 0 0 0 3px color-mix(in srgb, var(--color-accent) 35%, transparent);--select-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235c6a82' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");color-scheme:light}:root[data-theme=dark]{--color-bg: #0b0e14;--color-surface: #10141d;--color-surface-hover: #151a26;--color-border: #1e2534;--color-text: #eef1f7;--color-text-muted: #9aa3b5;--color-accent: #4bc1eb;--color-accent-text: #071722;--color-success: #4ade80;--color-success-bg: #10321f;--color-warning: #fbbf24;--color-warning-bg: #3a2a08;--color-danger: #f87171;--color-danger-bg: #3c1414;--shadow: 0 1px 3px rgba(0, 0, 0, .4);--shadow-lg: 0 12px 40px rgba(0, 0, 0, .5);--sidebar-bg: #080a0f;--sidebar-surface: rgba(255, 255, 255, .05);--sidebar-border: rgba(255, 255, 255, .07);--sidebar-text: #eef1f7;--sidebar-muted: #9aa3b5;--sidebar-active-text: var(--brand-cyan);--select-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239aa3b5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;transition:background-color .2s ease,color .2s ease}h1,h2,h3{font-weight:750;letter-spacing:-.02em}a{color:var(--color-accent)}select:not([multiple]){appearance:none;background-image:var(--select-chevron);background-repeat:no-repeat;background-position:right .7rem center;background-size:1rem;padding-right:2.2rem}.grad-text{background:linear-gradient(120deg,var(--brand-cyan),#7ea4e0 45%,#a583d9);-webkit-background-clip:text;background-clip:text;color:transparent}