/* SV Tech Innovation — shared preview theme (Dark) */

:root {
  --bg: #0A1120;
  --bg-alt: #0F172A;
  --surface: #131C2E;
  --surface-2: #182238;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #E6ECF5;
  --text-muted: #96A2B4;
  --brand: #4FA9C9;
  --brand-strong: #6FC0DC;
  --brand-tint: rgba(79, 169, 201, 0.12);
  --accent: #7EBC59;
}

html { scroll-behavior: smooth; background: var(--bg); }
body {
  font-family: Inter, system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(79, 169, 201, 0.10), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(126, 188, 89, 0.06), transparent 65%),
    var(--bg);
  background-attachment: fixed;
}
h1, h2, h3, h4 { font-family: "Space Grotesk", system-ui, sans-serif; letter-spacing: -0.01em; color: var(--text); }
p { color: var(--text); }
::selection { background: rgba(79, 169, 201, 0.35); color: #fff; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 6px; }

/* ===== Utility overrides (defeat inline Tailwind CDN utilities) ===== */
.bg-white { background-color: var(--surface) !important; }
.bg-white\/80 { background-color: rgba(15, 23, 42, 0.72) !important; backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%); }
.bg-white\/10 { background-color: rgba(255, 255, 255, 0.06) !important; }
.bg-white\/5 { background-color: rgba(255, 255, 255, 0.04) !important; }
.bg-\[\#F6F8FA\] { background-color: var(--bg-alt) !important; }

.border-\[\#E5E9EF\] { border-color: var(--border) !important; }
.border-white\/20 { border-color: rgba(255, 255, 255, 0.18) !important; }

.text-ink { color: var(--text) !important; }
.text-ink-muted { color: var(--text-muted) !important; }
.text-bordr-strong { color: rgba(255, 255, 255, 0.22) !important; }

.bg-brand-tint { background-color: var(--brand-tint) !important; }
.hover\:bg-brand-tint:hover { background-color: var(--brand-tint) !important; }
.text-brand { color: var(--brand-strong) !important; }
.hover\:text-brand:hover { color: var(--brand-strong) !important; }
.hover\:border-brand:hover { border-color: var(--brand) !important; }

/* Placeholders */
input::placeholder, textarea::placeholder { color: rgba(230, 236, 245, 0.45) !important; }
.placeholder-white\/50::placeholder { color: rgba(255, 255, 255, 0.55) !important; }

/* ===== Gradient text ===== */
.text-gradient {
  background: linear-gradient(120deg, #6FC0DC 0%, #4FA9C9 45%, #7EBC59 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 1.5rem; border-radius: 999px;
  background: linear-gradient(120deg, #4FA9C9 0%, #368CBF 100%);
  color: #fff; font-weight: 600; font-size: .875rem;
  box-shadow: 0 10px 28px rgba(54, 140, 191, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.18);
  transition: transform .2s, box-shadow .2s, filter .2s;
}
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); box-shadow: 0 14px 34px rgba(54, 140, 191, 0.45); }

.btn-secondary {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 1.5rem; border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text); font-weight: 600; font-size: .875rem;
  transition: all .2s;
}
.btn-secondary:hover { border-color: var(--brand); color: var(--brand-strong); background: rgba(79, 169, 201, 0.08); }

.btn-outline-light {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 1.5rem; border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.05); color: #fff;
  font-weight: 600; font-size: .875rem; transition: all .2s;
}
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.6); }

/* ===== Eyebrow pill ===== */
.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .3rem .8rem; border-radius: 999px;
  border: 1px solid rgba(79, 169, 201, 0.35);
  background: rgba(79, 169, 201, 0.10);
  color: var(--brand-strong);
  font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
}

/* ===== Cards ===== */
.card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.25);
  transition: transform .3s, box-shadow .3s, border-color .3s;
  position: relative;
  color: var(--text);
}
.card:hover { transform: translateY(-3px); box-shadow: 0 20px 44px rgba(0, 0, 0, 0.4); border-color: var(--border-strong); }
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(120deg, #4FA9C9 0%, #6FC0DC 55%, #7EBC59 100%);
  opacity: 0; transition: opacity .3s;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none;
}
.card:hover::before { opacity: .9; }

/* ===== Backgrounds / sections ===== */
.hero-radial {
  background:
    radial-gradient(1200px 500px at 50% -10%, rgba(79, 169, 201, 0.28), transparent 60%),
    radial-gradient(800px 400px at 90% 20%, rgba(126, 188, 89, 0.14), transparent 65%),
    radial-gradient(600px 300px at 10% 80%, rgba(79, 169, 201, 0.10), transparent 70%),
    var(--bg);
}
.grid-bg {
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

.dark-band {
  background: linear-gradient(180deg, #0B1428 0%, #0A1120 100%);
  color: #fff; position: relative; overflow: hidden;
}
.dark-band::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(600px 300px at 20% 20%, rgba(79, 169, 201, 0.45), transparent 70%),
    radial-gradient(600px 300px at 80% 80%, rgba(126, 188, 89, 0.30), transparent 70%);
  opacity: .45; pointer-events: none;
}

.metric-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.10);
  backdrop-filter: blur(6px);
  border-radius: 1.25rem;
  padding: 1.5rem;
  text-align: center;
}

/* ===== Form fields ===== */
.field {
  width: 100%; border-radius: .75rem;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: .75rem 1rem; font-size: .875rem; outline: none;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.field:focus { border-color: var(--brand); background: rgba(255, 255, 255, 0.06); box-shadow: 0 0 0 3px rgba(79, 169, 201, 0.25); }
.label { display: block; margin-bottom: .35rem; font-size: .875rem; font-weight: 500; color: var(--text); }

input.field, textarea.field, select.field { color-scheme: dark; }

/* ===== Header polish ===== */
header.sticky { border-color: var(--border) !important; }

/* ===== Footer polish ===== */
footer { color: var(--text-muted); }
footer a { color: var(--text-muted); }
footer a:hover { color: var(--brand-strong); }

/* ===== Scrollbar (WebKit) ===== */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.12); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.22); }

/* ===== Hero SVG animation ===== */
@keyframes spin-slow { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.orbit-dot { transform-origin: 180px 180px; animation: spin-slow 60s linear infinite; }
.pulse-line { stroke-dasharray: 4 8; animation: pulse-slide 3s linear infinite; }
@keyframes pulse-slide { to { stroke-dashoffset: -60; } }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ===== Reveal on scroll ===== */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }