/* Arktic Bear Labs — landing page styles */

:root {
  --bg:            #f7f9fb;
  --bg-alt:        #eef3f8;
  --surface:       #ffffff;
  --border:        #dde5ee;
  --text:          #101b26;
  --text-muted:    #53657a;
  --accent:        #1f7a8c;
  --accent-strong: #145d6c;
  --accent-soft:   #d8ecf1;
  --on-accent:     #ffffff;
  --shadow:        0 1px 2px rgba(16, 27, 38, .06), 0 8px 24px rgba(16, 27, 38, .06);
  --radius:        14px;
  --wrap:          1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:            #0b1219;
    --bg-alt:        #0f1822;
    --surface:       #131e29;
    --border:        #223241;
    --text:          #e8eef5;
    --text-muted:    #9aacbe;
    --accent:        #5fc6da;
    --accent-strong: #8fdcea;
    --accent-soft:   #16303a;
    --on-accent:     #06141a;
    --shadow:        0 1px 2px rgba(0, 0, 0, .4), 0 12px 32px rgba(0, 0, 0, .35);
  }
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto,
               Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }

a { color: var(--accent); }

h1, h2, h3 {
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: 0 0 .5em;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 24px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--surface);
  color: var(--text);
  padding: 10px 16px;
  z-index: 10;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-block: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.brand-mark { width: 32px; height: 32px; color: var(--accent); flex: none; }

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 22px;
  font-size: .95rem;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
}
.site-nav a:hover { color: var(--text); }

.nav-cta {
  color: var(--accent) !important;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 16px;
}
.nav-cta:hover { border-color: var(--accent); }

/* ---------- hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(64px, 12vw, 128px);
}

.hero-inner { position: relative; z-index: 1; max-width: 760px; }

.hero-glow {
  position: absolute;
  inset: -40% 40% auto -20%;
  height: 700px;
  background: radial-gradient(circle at 30% 40%,
              color-mix(in srgb, var(--accent) 22%, transparent), transparent 62%);
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .74rem;
  font-weight: 650;
  color: var(--accent);
}

.hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  font-weight: 700;
  margin-bottom: .45em;
}

.lede {
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 62ch;
  margin: 0 0 32px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .98rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform .12s ease, background-color .12s ease, border-color .12s ease;
}
.btn:hover { transform: translateY(-1px); }

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

.btn-ghost { border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- sections ---------- */

.section { padding-block: clamp(56px, 9vw, 96px); }

.section-title {
  font-size: clamp(1.6rem, 3.4vw, 2.1rem);
  font-weight: 680;
}

.section-lede {
  color: var(--text-muted);
  max-width: 58ch;
  margin: 0 0 40px;
}

/* about */

.about p { color: var(--text-muted); max-width: 60ch; }

/* contact */

.section-contact {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  text-align: center;
}
.contact-inner .section-lede { margin-inline: auto; }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  font-size: .9rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-block: 28px;
}
.footer-inner p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn:hover { transform: none; }
}