/* Hippocampus demo landing page Design tokens drive both themes; [data-theme] on flips the palette. */ :root { --accent: #7c6cf0; --accent-strong: #6355e0; --accent-contrast: #ffffff; --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace; --wrap: 1080px; --radius: 14px; --radius-sm: 9px; --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 30px rgba(0, 0, 0, 0.06); } /* Dark (default) */ [data-theme="dark"] { --bg: #0c0d12; --bg-alt: #12141c; --surface: #161824; --surface-2: #1c1f2e; --border: #262a3a; --text: #e8eaf2; --text-muted: #a2a7ba; --text-faint: #757b90; --code-bg: #0a0b10; --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 40px rgba(0, 0, 0, 0.4); } /* Light */ [data-theme="light"] { --bg: #ffffff; --bg-alt: #f6f7fb; --surface: #ffffff; --surface-2: #f6f7fb; --border: #e7e9f2; --text: #14161f; --text-muted: #565c72; --text-faint: #838aa1; --code-bg: #f3f4f9; } * { box-sizing: border-box; } html { scroll-behavior: smooth; } body { margin: 0; font-family: var(--font-sans); background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; } a { color: var(--accent); text-decoration: none; } a:hover { text-decoration: underline; } code { font-family: var(--font-mono); font-size: 0.88em; background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 0.1em 0.4em; } .wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; } .skip-link { position: absolute; left: -9999px; top: 0; background: var(--accent); color: var(--accent-contrast); padding: 10px 16px; border-radius: 0 0 var(--radius-sm) 0; z-index: 100; } .skip-link:focus { left: 0; } /* Header */ .site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: saturate(140%) blur(10px); border-bottom: 1px solid var(--border); } .header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; } .brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; letter-spacing: -0.01em; } .brand:hover { text-decoration: none; } .brand-mark { color: var(--accent); } .brand-name { font-size: 1.05rem; } .site-nav { display: flex; align-items: center; gap: 26px; } .site-nav a { color: var(--text-muted); font-size: 0.95rem; font-weight: 500; } .site-nav a:hover { color: var(--text); text-decoration: none; } .theme-toggle { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); color: var(--text-muted); cursor: pointer; transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease; } .theme-toggle:hover { color: var(--text); border-color: var(--accent); } .theme-toggle svg { grid-area: 1 / 1; } [data-theme="dark"] .icon-sun { display: none; } [data-theme="light"] .icon-moon { display: none; } /* Buttons */ .btn { display: inline-flex; align-items: center; gap: 9px; padding: 12px 22px; border-radius: 11px; font-weight: 600; font-size: 0.98rem; border: 1px solid transparent; cursor: pointer; transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease; } .btn:hover { text-decoration: none; transform: translateY(-1px); } .btn-primary { background: var(--accent); color: var(--accent-contrast); } .btn-primary:hover { background: var(--accent-strong); } .btn-ghost { background: var(--surface); color: var(--text); border-color: var(--border); } .btn-ghost:hover { border-color: var(--accent); } /* Hero */ .hero { position: relative; overflow: hidden; padding: clamp(72px, 12vw, 132px) 0 clamp(56px, 9vw, 96px); } .hero::before { content: ""; position: absolute; inset: -40% 0 auto 0; height: 640px; background: radial-gradient( 60% 60% at 20% 10%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70% ), radial-gradient( 50% 50% at 85% 0%, color-mix(in srgb, #35c9c1 16%, transparent), transparent 70% ); pointer-events: none; z-index: 0; } .hero-inner { position: relative; z-index: 1; max-width: 820px; } .eyebrow { display: inline-block; margin: 0 0 18px; padding: 5px 13px; font-size: 0.82rem; font-weight: 600; letter-spacing: 0.02em; color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); border-radius: 999px; } .hero-title { margin: 0 0 22px; font-size: clamp(2.1rem, 5.4vw, 3.6rem); line-height: 1.08; letter-spacing: -0.025em; font-weight: 720; } .accent { color: var(--accent); } .hero-sub { margin: 0 0 32px; font-size: clamp(1.05rem, 2.2vw, 1.28rem); color: var(--text-muted); max-width: 660px; } .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; } /* Sections */ .section { padding: clamp(64px, 9vw, 104px) 0; } .section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); } .section-title { margin: 0 0 14px; font-size: clamp(1.6rem, 3.4vw, 2.3rem); line-height: 1.15; letter-spacing: -0.02em; font-weight: 680; } .section-lede { margin: 0 0 44px; font-size: 1.1rem; color: var(--text-muted); max-width: 680px; } /* Grids & cards */ .grid { display: grid; gap: 20px; } .features { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); } .demos { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); } .card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); } .card h3 { margin: 0 0 10px; font-size: 1.16rem; letter-spacing: -0.01em; } .card p { margin: 0; color: var(--text-muted); font-size: 0.98rem; } .demo-card { display: flex; flex-direction: column; padding: 30px; } .demo-card p { flex: 1; margin-bottom: 24px; } .demo-tag { align-self: flex-start; font-family: var(--font-mono); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent); border-radius: 7px; padding: 4px 10px; margin-bottom: 16px; } .demo-card .btn { align-self: flex-start; } .demos-note { margin: 28px 0 0; font-size: 0.95rem; color: var(--text-faint); } /* CTA */ .cta-inner { max-width: 720px; } .codeblock { margin: 0 0 28px; padding: 20px 22px; background: var(--code-bg); border: 1px solid var(--border); border-radius: var(--radius); overflow-x: auto; font-family: var(--font-mono); font-size: 0.92rem; line-height: 1.7; color: var(--text); } .codeblock code { background: none; border: none; padding: 0; font-size: inherit; } /* Footer */ .site-footer { border-top: 1px solid var(--border); padding: 34px 0; } .footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 18px; } .footer-nav { display: flex; flex-wrap: wrap; gap: 22px; } .footer-nav a { color: var(--text-muted); font-size: 0.93rem; } .footer-nav a:hover { color: var(--text); text-decoration: none; } /* Focus visibility */ :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; } @media (max-width: 640px) { .site-nav { gap: 16px; } .site-nav a[href="#how"] { display: none; } } @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn:hover { transform: none; } }