/* SlabShot — marine depth-sounder instrument. Dark teal-black, sharp teal, app fonts. */

@font-face { font-family: "Rajdhani"; src: url("../fonts/rajdhani_medium.ttf") format("truetype"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Rajdhani"; src: url("../fonts/rajdhani_semibold.ttf") format("truetype"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Rajdhani"; src: url("../fonts/rajdhani_bold.ttf") format("truetype"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("../fonts/barlow_regular.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("../fonts/barlow_medium.ttf") format("truetype"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("../fonts/barlow_semibold.ttf") format("truetype"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("../fonts/barlow_bold.ttf") format("truetype"); font-weight: 700; font-display: swap; }

:root {
  --teal:        #34D9C4;   /* sharp accent */
  --teal-bright: #2DD4BF;
  --deep:        #0B1416;   /* background */
  --deep-2:      #0E2A30;   /* deep teal */
  --surface:     #101C1F;
  --surface-2:   #1B2A2E;
  --ink:         #E3ECEB;   /* on-background */
  --muted:       #93A6A7;
  --line:        #243438;
  --maxw: 1080px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Barlow", system-ui, sans-serif;
  color: var(--ink);
  background: var(--deep);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* "Looking into deep water" — layered radial sunlit shallows over a sinking deep, + a faint
   sonar depth-contour pattern and a grain veil. Fixed so content scrolls over the atmosphere. */
.bg {
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(52,217,196,.16), transparent 55%),
    radial-gradient(90% 60% at 85% 10%, rgba(45,212,191,.08), transparent 60%),
    linear-gradient(180deg, #0d1a1e 0%, var(--deep) 45%, #060c0d 100%);
}
.bg::before {            /* sonar depth contours */
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image: repeating-radial-gradient(circle at 50% -20%,
    transparent 0, transparent 78px, rgba(52,217,196,.05) 79px, transparent 80px);
}
.bg::after {             /* grain veil */
  content: ""; position: absolute; inset: 0; opacity: .035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---- top bar ---- */
header.bar {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(8px);
  background: linear-gradient(180deg, rgba(11,20,22,.78), rgba(11,20,22,.35));
  border-bottom: 1px solid var(--line);
}
.bar .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.mark {
  width: 26px; height: 26px; flex: none;
  background: var(--teal);
  -webkit-mask: url("../img/slabshot_mark.png") center/contain no-repeat;
          mask: url("../img/slabshot_mark.png") center/contain no-repeat;
}
.wordmark { font-family: "Rajdhani"; font-weight: 700; letter-spacing: .14em; font-size: 19px; color: var(--ink); }
.bar nav a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 600; letter-spacing: .02em; }
.bar nav a:hover { color: var(--teal); }

/* ---- hero ---- */
.hero { padding: clamp(64px, 12vw, 140px) 0 56px; text-align: center; }
.hero .mark-xl {
  width: clamp(72px, 16vw, 116px); height: clamp(72px, 16vw, 116px); margin: 0 auto 26px;
  background: linear-gradient(160deg, var(--teal), #15807a);
  -webkit-mask: url("../img/slabshot_mark.png") center/contain no-repeat;
          mask: url("../img/slabshot_mark.png") center/contain no-repeat;
  filter: drop-shadow(0 6px 30px rgba(52,217,196,.35));
}
.eyebrow {
  font-family: "Rajdhani"; font-weight: 600; letter-spacing: .42em; text-transform: uppercase;
  font-size: 13px; color: var(--teal); margin-bottom: 18px;
}
h1 {
  font-family: "Rajdhani"; font-weight: 700; line-height: 1.02;
  font-size: clamp(40px, 8vw, 76px); letter-spacing: .005em;
}
h1 .accent { color: var(--teal); }
.lede {
  max-width: 640px; margin: 22px auto 0; color: var(--muted);
  font-size: clamp(16px, 2.4vw, 20px);
}
.cta-row { margin-top: 34px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.pill {
  display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 13px;
  letter-spacing: .06em; text-transform: uppercase; color: var(--teal);
  border: 1px solid color-mix(in srgb, var(--teal) 45%, transparent);
  border-radius: 999px; padding: 9px 16px; background: rgba(52,217,196,.06);
}

/* ---- buttons / inputs ---- */
.btn {
  font-family: "Barlow"; font-weight: 700; font-size: 16px; letter-spacing: .01em;
  border: none; border-radius: 12px; padding: 14px 22px; cursor: pointer;
  background: var(--teal); color: #04201d; transition: transform .12s ease, box-shadow .12s ease;
  box-shadow: 0 6px 24px rgba(52,217,196,.25);
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 30px rgba(52,217,196,.38); }
.btn:disabled { opacity: .5; cursor: default; box-shadow: none; transform: none; }
input[type=email] {
  font-family: "Barlow"; font-size: 16px; color: var(--ink);
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 16px; width: 100%;
}
input[type=email]:focus { outline: none; border-color: var(--teal); }

/* ---- sections ---- */
section { padding: 56px 0; }
.section-label {
  font-family: "Rajdhani"; font-weight: 600; letter-spacing: .3em; text-transform: uppercase;
  font-size: 12px; color: var(--muted); margin-bottom: 22px; text-align: center;
}
.grid {
  display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.card {
  background: linear-gradient(180deg, var(--surface), #0d181b);
  border: 1px solid var(--line); border-radius: 16px; padding: 22px;
}
.card h3 { font-family: "Rajdhani"; font-weight: 600; font-size: 20px; letter-spacing: .02em; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 15px; }
.card .ic {
  width: 30px; height: 30px; margin-bottom: 14px; color: var(--teal);
}

/* ---- waitlist ---- */
.signup { max-width: 560px; margin: 0 auto; text-align: center; }
.signup-card {
  background: linear-gradient(180deg, var(--surface), #0c1619);
  border: 1px solid var(--line); border-radius: 20px; padding: 30px;
}
.field-row { display: flex; gap: 10px; margin-top: 6px; }
.field-row .btn { flex: none; }
.consent { display: flex; gap: 10px; align-items: flex-start; text-align: left; margin-top: 16px; font-size: 13px; color: var(--muted); }
.consent input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--teal); flex: none; }
.consent a { color: var(--teal); }
.form-note { margin-top: 14px; font-size: 12px; color: var(--muted); min-height: 18px; }
.form-note.ok { color: var(--teal); }
.form-note.err { color: #FF8A80; }
@media (max-width: 520px) { .field-row { flex-direction: column; } .field-row .btn { width: 100%; } }

/* ---- footer ---- */
footer { border-top: 1px solid var(--line); padding: 30px 0 50px; margin-top: 40px; }
footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); text-decoration: none; font-size: 14px; }
footer a:hover { color: var(--teal); }
.foot-mark { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 13px; }

/* ---- prose (privacy) ---- */
.prose { max-width: 760px; margin: 0 auto; padding: 40px 0 60px; }
.prose h1 { font-size: clamp(30px, 6vw, 46px); text-align: left; margin-bottom: 6px; }
.prose .updated { color: var(--muted); font-size: 14px; margin-bottom: 30px; }
.prose h2 { font-family: "Rajdhani"; font-weight: 600; font-size: 23px; letter-spacing: .02em; color: var(--teal); margin: 34px 0 10px; }
.prose h3 { font-family: "Rajdhani"; font-weight: 600; font-size: 18px; margin: 20px 0 6px; }
.prose p, .prose li { color: #c4d2d2; font-size: 16px; margin-bottom: 10px; }
.prose ul { padding-left: 22px; margin-bottom: 12px; }
.prose strong { color: var(--ink); }
.prose a { color: var(--teal); }
.prose table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.prose th { background: var(--surface-2); font-family: "Rajdhani"; font-weight: 600; letter-spacing: .02em; }

/* ---- entrance motion (one orchestrated load) ---- */
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.reveal { opacity: 0; animation: rise .7s cubic-bezier(.2,.7,.2,1) forwards; }
.d1 { animation-delay: .05s; } .d2 { animation-delay: .15s; } .d3 { animation-delay: .27s; }
.d4 { animation-delay: .4s; } .d5 { animation-delay: .55s; }
@media (prefers-reduced-motion: reduce) { .reveal { animation: none; opacity: 1; } html { scroll-behavior: auto; } }