@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  color-scheme: light;
  --ink: #14212a;
  --muted: #64727b;
  --paper: #eef2f3;
  --panel: #ffffff;
  --accent: #087f8c;
  --accent-dark: #075c67;
  --line: #cdd8dc;
  font-family: "Space Grotesk", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); color: var(--ink); }
.page-shell { width: min(1040px, calc(100% - 40px)); min-height: 100vh; margin: 0 auto; }
.site-nav, .site-footer { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; font-family: "IBM Plex Mono", monospace; }
.brand { color: var(--ink); font-size: 1rem; font-weight: 700; text-decoration: none; }
.nav-actions, .hero-actions { display: flex; align-items: center; gap: 14px; }
.nav-link, .nav-button, .secondary-link { color: var(--muted); font-size: 0.82rem; text-decoration: none; }
.nav-button, .secondary-link { padding: 9px 12px; border: 1px solid var(--line); color: var(--ink); }
.nav-link:hover, .nav-link:focus-visible, .nav-button:hover, .nav-button:focus-visible, .secondary-link:hover, .secondary-link:focus-visible { border-color: var(--accent); color: var(--accent-dark); }
.hero { display: grid; max-width: 760px; padding: clamp(56px, 10vw, 96px) 0 72px; animation: rise-in 500ms ease-out both; }
.eyebrow { margin: 0 0 14px; color: var(--accent-dark); font-family: "IBM Plex Mono", monospace; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { max-width: 700px; margin-bottom: 18px; font-size: clamp(2.8rem, 6vw, 5.8rem); font-weight: 600; line-height: 0.98; }
.hero-copy { max-width: 560px; margin-bottom: 24px; color: var(--muted); font-size: clamp(1rem, 1.5vw, 1.2rem); line-height: 1.45; }
.primary-link { justify-self: start; padding: 12px 16px; border: 1px solid var(--accent); background: var(--accent); color: white; font-family: "IBM Plex Mono", monospace; font-size: 0.82rem; font-weight: 600; text-decoration: none; }
.primary-link:hover, .primary-link:focus-visible { background: var(--accent-dark); border-color: var(--accent-dark); }
.focus-section { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; padding: 30px 0 48px; border-top: 1px solid var(--line); animation: rise-in 500ms 100ms ease-out both; }
.focus-section h2 { max-width: 380px; margin-bottom: 0; font-size: clamp(1.8rem, 3vw, 3rem); font-weight: 600; line-height: 1.02; }
.focus-section > p { max-width: 420px; margin: 0; color: var(--muted); font-size: 1rem; line-height: 1.5; }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 0.75rem; }
.auth-shell { width: min(100% - 32px, 430px); min-height: 100vh; margin: 0 auto; padding: 22px 0; }
.auth-shell > .brand { display: inline-block; margin-bottom: 28px; font-family: "IBM Plex Mono", monospace; }
.auth-card { padding: clamp(20px, 4vw, 30px); border: 1px solid var(--line); background: var(--panel); animation: rise-in 500ms ease-out both; }
.auth-card h1 { margin-bottom: 10px; font-size: clamp(2.2rem, 8vw, 3.4rem); }
.auth-intro, .session-status { color: var(--muted); line-height: 1.45; }
.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; margin: 22px 0; padding: 4px; background: var(--paper); }
.auth-tab, .text-button { border: 0; background: transparent; color: var(--muted); cursor: pointer; font: inherit; }
.auth-tab { padding: 10px 8px; font-family: "IBM Plex Mono", monospace; font-size: 0.78rem; }
.auth-tab.is-active { background: var(--panel); color: var(--ink); font-weight: 600; }
.auth-form { display: grid; gap: 8px; }
.auth-form label { margin-top: 7px; font-family: "IBM Plex Mono", monospace; font-size: 0.75rem; font-weight: 600; }
.auth-form input { width: 100%; min-height: 42px; padding: 9px 11px; border: 1px solid var(--line); background: white; color: var(--ink); font: inherit; }
.auth-form input:focus-visible { outline: 3px solid rgba(8, 127, 140, 0.2); border-color: var(--accent); }
.form-button { width: 100%; margin-top: 14px; text-align: center; }
.text-button { justify-self: center; padding: 7px; color: var(--accent-dark); font-family: "IBM Plex Mono", monospace; font-size: 0.75rem; text-decoration: underline; }
.auth-message { min-height: 1.3em; margin: 16px 0 0; color: var(--accent-dark); font-family: "IBM Plex Mono", monospace; font-size: 0.78rem; }
.auth-message.is-error { color: #b42318; }
.is-hidden { display: none; }
@keyframes rise-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 700px) {
  .page-shell { width: min(100% - 24px, 560px); }
  .site-nav { padding: 14px 0; }
  .nav-button { font-size: 0.75rem; }
  .hero { padding: 56px 0 58px; }
  .focus-section { grid-template-columns: 1fr; gap: 20px; padding-bottom: 42px; }
  .auth-shell { width: min(100% - 24px, 430px); padding-top: 16px; }
  .auth-card { padding: 20px 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
}