/* ========================================================= base.css — Global Design System (used on all pages) ========================================================= */ /* ---- CSS Reset (modern, minimal) ---- */ *, *::before, *::after { box-sizing: border-box; } html:focus-within { scroll-behavior: smooth; } html, body { height: 100%; } body { margin: 0; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; } img, picture, video, canvas, svg { display: block; max-width: 100%; } input, button, textarea, select { font: inherit; color: inherit; } a { color: inherit; text-decoration: none; } ul, ol { margin: 0; padding: 0; list-style: none; } /* ---- Theme Tokens ---- We use CSS variables so theme switch is easy. Default = Dark theme. */ :root { /* Typography */ --font-sans: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; /* Spacing scale */ --space-1: 6px; --space-2: 10px; --space-3: 14px; --space-4: 18px; --space-5: 24px; --space-6: 32px; --space-7: 42px; --space-8: 56px; --space-9: 72px; /* Radius */ --r-1: 12px; --r-2: 16px; --r-3: 20px; --r-pill: 999px; /* Shadows */ --shadow-1: 0 10px 30px rgba(0,0,0,.35); --shadow-2: 0 18px 60px rgba(0,0,0,.45); /* Brand colors */ --brand-1: #7C3AED; /* purple */ --brand-2: #06B6D4; /* cyan */ --brand-3: #22C55E; /* green */ /* Dark theme */ --bg: #070A12; --surface: rgba(255,255,255,.05); --surface-2: rgba(255,255,255,.08); --text: rgba(255,255,255,.92); --muted: rgba(255,255,255,.68); --border: rgba(255,255,255,.14); /* Focus ring */ --focus: rgba(6,182,212,.55); --focus-soft: rgba(6,182,212,.16); /* Container width */ --container: 1120px; /* Gradients */ --grad-brand: linear-gradient(135deg, rgba(124,58,237,.98), rgba(6,182,212,.98)); --grad-soft: radial-gradient(circle at 30% 30%, rgba(124,58,237,.35), transparent 60%), radial-gradient(circle at 70% 70%, rgba(6,182,212,.30), transparent 55%); /* Transitions */ --t-fast: 150ms ease; --t-med: 220ms ease; --t-slow: 420ms ease; } /* ---- Light theme override ---- Theme switching will toggle: data-theme="light" on element */ html[data-theme="light"] { /* Background */ --bg: #F3F5F9; /* Cards / panels */ --surface: #ffffff; --surface-2: #f8fafc; /* Text */ --text: #0f172a; --muted: #475569; /* Borders */ --border: rgba(15, 23, 42, 0.12); /* Shadows */ --shadow-1: 0 6px 18px rgba(15,23,42,0.08); --shadow-2: 0 12px 32px rgba(15,23,42,0.12); } /* ---- Base layout ---- */ body { font-family: var(--font-sans); background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; } /* Accessible focus */ :focus-visible { outline: none; box-shadow: 0 0 0 4px var(--focus-soft); border-color: var(--focus); } /* Selection */ ::selection { background: rgba(124,58,237,.35); } /* ---- Containers / sections ---- */ .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; } .section { padding: var(--space-9) 0; } .section--alt { background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01)); border-top: 1px solid rgba(255,255,255,.06); border-bottom: 1px solid rgba(255,255,255,.06); } /* Light theme tweak for alt section borders */ html[data-theme="light"] .section--alt { border-top: 1px solid rgba(0,0,0,.06); border-bottom: 1px solid rgba(0,0,0,.06); } /* ---- Typography utilities ---- */ .h1 { font-size: clamp(34px, 4vw, 56px); line-height: 1.05; letter-spacing: -0.02em; margin: 0; } .h2 { font-size: clamp(22px, 2.6vw, 36px); line-height: 1.15; letter-spacing: -0.02em; margin: 0; } .lead { color: var(--muted); font-size: 17px; line-height: 1.6; max-width: 60ch; /* limits line length */ margin: 0 auto; /* centers text */ min-height: 3.6em; /* forces equal height */ text-align: center; /* aligns nicely under heading */ } .kicker { display: inline-flex; align-items: center; gap: 10px; padding: 8px 12px; border-radius: var(--r-pill); border: 1px solid var(--border); background: var(--surface); color: var(--muted); font-size: 13px; width: fit-content; } .kicker__dot { width: 8px; height: 8px; border-radius: var(--r-pill); background: var(--grad-brand); box-shadow: 0 0 0 6px rgba(6,182,212,.12); } .grad-text { background: linear-gradient(90deg, rgba(255,255,255,.96), rgba(255,255,255,.62)); -webkit-background-clip: text; background-clip: text; color: transparent; } html[data-theme="light"] .grad-text { background: linear-gradient(90deg, rgba(0,0,0,.92), rgba(0,0,0,.50)); -webkit-background-clip: text; background-clip: text; color: transparent; } /* ---- Buttons ---- */ .btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 12px 16px; border-radius: var(--r-2); border: 1px solid var(--border); background: var(--surface); color: var(--text); font-weight: 600; font-size: 14px; cursor: pointer; transition: transform var(--t-fast), background var(--t-med), border-color var(--t-med); } .btn:hover { transform: translateY(-1px); border-color: color-mix(in srgb, var(--border), white 22%); } .btn:active { transform: translateY(0px); } .btn--primary { border-color: transparent; background: var(--grad-brand); box-shadow: 0 18px 45px rgba(6,182,212,.14); } .btn--ghost { background: transparent; } .btn--small { padding: 10px 14px; border-radius: var(--r-1); } .btn--full { width: 100%; } /* ---- Cards / surfaces ---- */ .surface { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-3); box-shadow: var(--shadow-1); } .surface--soft { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-3); } /* ---- Inputs ---- */ .field { display: grid; gap: 7px; } .field__label { font-size: 13px; font-weight: 600; color: color-mix(in srgb, var(--text), transparent 25%); } .field__input { width: 100%; padding: 12px 12px; border-radius: var(--r-2); border: 1px solid var(--border); background: color-mix(in srgb, var(--bg), black 22%); color: var(--text); outline: none; } html[data-theme="light"] .field__input { background: white; } /* ---- Reveal animation helper ---- */ .reveal { opacity: 0; transform: translateY(14px); transition: opacity var(--t-slow), transform var(--t-slow); } .reveal.is-visible { opacity: 1; transform: translateY(0); } /* ---- Small helpers ---- */ .muted { color: var(--muted); } .center { text-align: center; } .stack-2 > * + * { margin-top: var(--space-2); } .stack-3 > * + * { margin-top: var(--space-3); } .stack-4 > * + * { margin-top: var(--space-4); } /* ---- Responsive helpers ---- */ @media (max-width: 920px) { .section { padding: 64px 0; } } @media (max-width: 560px) { .container { width: min(var(--container), calc(100% - 28px)); } }