/* FI Life OS — marketing site */

:root {
  --bg: #f6f5f3;
  --ink: #0c0d0f;
  --ink-muted: #4a4f58;
  --ink-faint: #7a7f87;
  --border: #e6e4e0;
  --accent: #1a2f4a;
  --accent-hover: #243d5e;
  --ring: rgba(26, 47, 74, 0.28);
  --glow-a: rgba(26, 47, 74, 0.055);
  --glow-b: rgba(108, 124, 142, 0.07);
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Newsreader", ui-serif, Georgia, "Times New Roman", serif;
  --shell: min(640px, calc(100% - 2.5rem));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ink);
  background-color: var(--bg);
  background-image: radial-gradient(ellipse 140% 90% at 50% -35%, var(--glow-b), transparent 52%),
    radial-gradient(ellipse 70% 55% at 100% 30%, var(--glow-a), transparent 50%),
    radial-gradient(ellipse 55% 45% at 0% 70%, var(--glow-a), transparent 48%);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--ink);
  color: var(--bg);
  text-decoration: none;
  border-radius: 6px;
  z-index: 100;
}

.skip-link:focus {
  left: 0.75rem;
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

/* Landing layout */

.page-landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */

.site-header {
  flex-shrink: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
}

.brand-word {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.018em;
  color: var(--ink);
  text-decoration: none;
}

.brand-word:hover {
  color: var(--ink-muted);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.95rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.btn:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: #f4f5f6;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

/* Hero */

.landing-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.hero {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  padding-block: clamp(3.5rem, 12vh, 6rem);
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  margin: auto;
  width: min(42rem, 100%);
  height: min(22rem, 55vh);
  background: radial-gradient(
    circle at 40% 35%,
    color-mix(in srgb, var(--accent) 6%, transparent),
    transparent 62%
  );
  pointer-events: none;
}

.hero-copy {
  position: relative;
  width: 100%;
}

.hero-name {
  margin: 0 0 1.25rem;
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5.5vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.08;
}

.hero-tagline {
  margin: 0 0 1.75rem;
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.35;
  color: var(--ink-muted);
  max-width: 28em;
}

.hero-beta {
  margin: 0 0 1.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.hero-support {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--ink-muted);
  max-width: 32em;
}

/* Footer */

.site-footer {
  flex-shrink: 0;
}

.site-footer--minimal {
  border-top: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  padding-block: 1.25rem;
  background: transparent;
}

.footer-inner {
  display: flex;
  justify-content: center;
}

.footer-copy {
  margin: 0;
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--ink-faint);
}

/* Maintenance */

.page-maintenance {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.maintenance-main {
  width: 100%;
  padding: 2rem;
}

.maintenance-card {
  max-width: 28rem;
  margin-inline: auto;
  text-align: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2.5rem;
  box-shadow: 0 8px 28px rgba(12, 13, 15, 0.05);
}

.maintenance-logo {
  margin-inline: auto;
  margin-bottom: 1rem;
}

.maintenance-title {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
}

.maintenance-message {
  margin: 0;
  color: var(--ink-muted);
  font-size: 1.02rem;
}

@media (max-width: 380px) {
  .header-inner .btn {
    padding-inline: 0.75rem;
  }
}