/* Hailstone marketing site — self-contained, no dependencies.
   Palette: deep night-sky blues (the freezer) with warm photo-tile accents. */

:root {
  --bg: #0b0e14;
  --bg-raised: #12161f;
  --border: #232a38;
  --text: #e8edf5;
  --text-2: #9aa3b2;
  --text-3: #6d7686;
  --accent: #7cb8ff;
  --accent-deep: #2f6db3;
  --max: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.9em;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 6px;
  white-space: nowrap;
}

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max); margin: 0 auto;
  padding: 14px 24px;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 17px; }
.nav nav { display: flex; align-items: center; gap: 22px; font-size: 14px; }
.nav nav a { color: var(--text-2); }
.nav nav a:hover { color: var(--text); }
.nav .cta {
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 16px;
  background: var(--bg-raised);
}

main { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

section { padding: 72px 0; border-bottom: 1px solid var(--border); }
section:last-of-type { border-bottom: none; }

h1 { font-size: clamp(40px, 7vw, 64px); line-height: 1.05; letter-spacing: -0.02em; font-weight: 800; }
h2 { font-size: clamp(26px, 4vw, 36px); letter-spacing: -0.01em; font-weight: 750; margin-bottom: 14px; }
h3 { font-size: 16px; font-weight: 650; margin-bottom: 6px; }

.section-lede { color: var(--text-2); font-size: 17px; max-width: 640px; margin-bottom: 32px; }

/* ---------- hero ---------- */
.hero { text-align: center; padding-top: 84px; }
.eyebrow {
  color: var(--accent); font-size: 13px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 18px;
}
.lede {
  color: var(--text-2); font-size: 19px; max-width: 560px;
  margin: 22px auto 30px;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; margin-bottom: 56px; }

.button {
  display: inline-block;
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-raised);
  color: var(--text);
  font-size: 15px; font-weight: 600;
  transition: transform 0.15s ease, background 0.15s ease;
}
.button:hover { transform: translateY(-1px); }
.button.primary {
  background: linear-gradient(180deg, #3c7fc4, var(--accent-deep));
  border-color: #4a86c6;
}
.button.large { padding: 14px 32px; font-size: 17px; }
.button .soon {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  background: rgba(255, 255, 255, 0.18); border-radius: 999px; padding: 2px 8px; margin-left: 8px;
  vertical-align: 2px;
}

.hero-shot img { border-radius: 14px; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55); }
.hero-shot figcaption { color: var(--text-3); font-size: 13px; margin-top: 14px; }

/* ---------- flagship (sync + server) ---------- */
.flagship { display: grid; gap: 72px; }
.flag {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 48px;
  align-items: center;
}
.flag.reverse { grid-template-columns: 1.35fr 1fr; }
.flag.reverse figure { order: 2; }
.flag figure {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}
.flag figure img { max-width: 380px; margin: 0 auto; }
.flag-copy p { color: var(--text-2); font-size: 16px; margin: 6px 0 16px; }
.flag-copy strong { color: var(--text); }
.flag-copy .more { font-size: 14px; }

/* ---------- problem ---------- */
.problem { max-width: 720px; }
.problem p { color: var(--text-2); font-size: 17px; margin-bottom: 16px; }
.problem .answer { color: var(--text); }
.problem strong { color: var(--accent); }

/* ---------- layout helpers ---------- */
.cols { display: grid; gap: 28px; }
.cols.three { grid-template-columns: repeat(3, 1fr); }
.cols.four { grid-template-columns: repeat(4, 1fr); }
.cols p { color: var(--text-2); font-size: 14.5px; }

.diagram, .shot { margin: 0 0 40px; }
.diagram img, .shot img { border-radius: 12px; }

/* ---------- trust ---------- */
.trust .cols div {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

/* ---------- features ---------- */
.features .cols div { padding: 4px 0; }

/* ---------- phone ---------- */
.phone { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
.phone-copy p { color: var(--text-2); font-size: 16px; margin-bottom: 18px; }
.checks { list-style: none; }
.checks li { color: var(--text-2); font-size: 15px; padding: 5px 0 5px 28px; position: relative; }
.checks li::before { content: "✓"; color: #61d37a; position: absolute; left: 0; font-weight: 700; }
.phone-shot { display: flex; justify-content: center; }
.phone-shot img { max-width: 280px; }

/* ---------- download ---------- */
.download { text-align: center; }
.download img { margin: 0 auto 20px; }
.download .section-lede { margin-left: auto; margin-right: auto; }
.fineprint { color: var(--text-3); font-size: 13px; margin-top: 16px; }

/* ---------- footer ---------- */
footer {
  max-width: var(--max); margin: 0 auto;
  padding: 28px 24px 48px;
  color: var(--text-3); font-size: 13px;
  border-top: 1px solid var(--border);
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .cols.three, .cols.four { grid-template-columns: 1fr 1fr; }
  .phone { grid-template-columns: 1fr; }
  .phone-shot { order: -1; }
  .flag, .flag.reverse { grid-template-columns: 1fr; }
  .flag.reverse figure { order: 0; }
}
@media (max-width: 560px) {
  .cols.three, .cols.four { grid-template-columns: 1fr; }
  .nav nav a:not(.cta) { display: none; }
  .hero-actions { flex-direction: column; align-items: center; }
}