/* ============================================================
   Gokipedia — landing page styles
   Dark, premium, AI-frontier aesthetic. Vanilla CSS, no build.
   ============================================================ */

:root {
  --bg: #07070b;
  --bg-2: #0b0b12;
  --ink: #f5f5f8;
  --ink-soft: #c7c7d2;
  --muted: #8b8b9a;
  --line: rgba(255, 255, 255, 0.09);
  --line-2: rgba(255, 255, 255, 0.14);
  --card: rgba(255, 255, 255, 0.025);
  --card-hover: rgba(255, 255, 255, 0.05);

  --violet: #8b7bff;
  --blue: #5cc8ff;
  --teal: #43e0c0;
  --gold: #ffcf6b;

  --grad: linear-gradient(100deg, #a99bff 0%, #6db8ff 45%, #54e6c6 100%);
  --grad-soft: linear-gradient(100deg, #8b7bff, #5cc8ff 50%, #43e0c0);

  --radius: 18px;
  --radius-lg: 26px;
  --maxw: 1120px;

  --shadow: 0 24px 70px -30px rgba(0, 0, 0, 0.85);
  --glow: 0 0 60px -12px rgba(120, 130, 255, 0.45);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

h1, h2, h3 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
}

strong { color: var(--ink); font-weight: 600; }

::selection { background: rgba(120, 130, 255, 0.32); color: #fff; }

/* ───────────── Background layers ───────────── */
.bg { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }

.bg-aurora {
  position: absolute;
  inset: -25%;
  background:
    radial-gradient(40% 50% at 22% 18%, rgba(139, 123, 255, 0.30), transparent 60%),
    radial-gradient(38% 48% at 82% 12%, rgba(92, 200, 255, 0.22), transparent 60%),
    radial-gradient(46% 55% at 65% 88%, rgba(67, 224, 192, 0.18), transparent 62%),
    radial-gradient(40% 45% at 12% 80%, rgba(139, 123, 255, 0.16), transparent 60%);
  filter: blur(20px);
  animation: drift 26s var(--ease) infinite alternate;
}

@keyframes drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(2%, -2%, 0) scale(1.06); }
  100% { transform: translate3d(-2%, 1%, 0) scale(1.02); }
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(115% 90% at 50% 0%, #000 35%, transparent 78%);
  -webkit-mask-image: radial-gradient(115% 90% at 50% 0%, #000 35%, transparent 78%);
}

.bg-noise {
  position: absolute;
  inset: 0;
  opacity: 0.5;
  background-image: url("/noise.svg");
  mix-blend-mode: overlay;
}

/* ───────────── Nav ───────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 24px;
  backdrop-filter: blur(10px);
}

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { display: inline-flex; filter: drop-shadow(0 4px 14px rgba(120, 130, 255, 0.4)); }
.brand-name {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.02em;
}
.brand-name .tld { color: var(--muted); }

.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--ink-soft); font-size: 15px; font-weight: 450; transition: color 0.2s; }
.nav-links a:hover { color: var(--ink); }

.nav-cta {
  padding: 9px 16px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--ink) !important;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.nav-cta:hover { border-color: rgba(139, 123, 255, 0.6); background: rgba(139, 123, 255, 0.12); transform: translateY(-1px); }

/* ───────────── Buttons ───────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 24px;
  border-radius: 999px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500;
  font-size: 16px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.3s, filter 0.2s, background 0.2s, border-color 0.2s;
  position: relative;
}
.btn:active { transform: translateY(1px) scale(0.99); }

.btn-primary {
  color: #08080d;
  background: var(--grad);
  box-shadow: 0 10px 30px -10px rgba(108, 184, 255, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.4);
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.06); box-shadow: 0 18px 44px -12px rgba(108, 184, 255, 0.7); }

.btn-ghost {
  color: var(--ink);
  border-color: var(--line-2);
  background: rgba(255, 255, 255, 0.02);
}
.btn-ghost:hover { border-color: rgba(255, 255, 255, 0.3); background: rgba(255, 255, 255, 0.06); transform: translateY(-2px); }

.btn-block { width: 100%; }

/* ───────────── Hero ───────────── */
.hero {
  max-width: 880px;
  margin: 0 auto;
  padding: 70px 24px 90px;
  text-align: center;
}

.forsale-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 8px 8px 16px;
  margin-bottom: 34px;
  border-radius: 999px;
  border: 1px solid rgba(255, 207, 107, 0.3);
  background: rgba(255, 207, 107, 0.07);
  color: var(--ink);
  font-size: 14px;
  font-weight: 450;
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
}
.forsale-pill:hover { transform: translateY(-1px); border-color: rgba(255, 207, 107, 0.55); background: rgba(255, 207, 107, 0.12); }
.forsale-pill .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 0 rgba(255, 207, 107, 0.6);
  animation: pulse 2.4s ease-out infinite;
}
.forsale-pill .arrow {
  display: inline-grid; place-items: center;
  width: 26px; height: 26px; border-radius: 50%;
  background: rgba(255, 207, 107, 0.16); color: var(--gold);
  transition: transform 0.2s;
}
.forsale-pill:hover .arrow { transform: translateX(3px); }

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(255, 207, 107, 0.55); }
  70%  { box-shadow: 0 0 0 10px rgba(255, 207, 107, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 207, 107, 0); }
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.26em;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--blue);
  margin: 0 0 22px;
}

.hero-title { font-size: clamp(58px, 12vw, 132px); font-weight: 700; line-height: 0.92; }
.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  background-size: 200% 200%;
  animation: shimmer 8s ease infinite;
}
@keyframes shimmer { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

.hero-tag {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(20px, 3.4vw, 30px);
  font-weight: 500;
  color: var(--ink);
  margin: 18px 0 0;
}

.hero-sub {
  max-width: 640px;
  margin: 22px auto 0;
  color: var(--ink-soft);
  font-size: clamp(16px, 2vw, 18.5px);
}

/* Faux search bar */
.search {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 540px;
  margin: 38px auto 0;
  padding: 15px 15px 15px 20px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: rgba(12, 12, 20, 0.6);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(8px);
  text-align: left;
}
.search-icon { color: var(--muted); flex: none; }
.search-text { flex: 1; color: var(--ink-soft); font-size: 16px; white-space: nowrap; overflow: hidden; }
.caret {
  display: inline-block; width: 2px; height: 1.05em;
  background: var(--blue); margin-left: 1px;
  vertical-align: text-bottom; animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.search-kbd {
  flex: none;
  font-family: "Space Grotesk", sans-serif;
  font-size: 13px; font-weight: 600;
  color: #08080d;
  padding: 7px 14px; border-radius: 999px;
  background: var(--grad);
}

.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 40px; }

.hero-meta {
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap;
  gap: 12px; margin-top: 34px;
  color: var(--muted); font-size: 14px;
}
.hero-meta b { color: var(--ink-soft); }
.hero-meta .sep { opacity: 0.5; }

/* ───────────── Sections ───────────── */
section { position: relative; }

.section-head { max-width: 680px; margin: 0 auto 54px; text-align: center; }
.section-eyebrow {
  text-transform: uppercase; letter-spacing: 0.22em; font-size: 12.5px;
  font-weight: 600; color: var(--violet); margin: 0 0 16px;
}
.section-head h2 { font-size: clamp(32px, 5vw, 50px); }
.section-lede { margin: 18px auto 0; color: var(--ink-soft); font-size: 18px; max-width: 560px; }

.vision, .value { max-width: var(--maxw); margin: 0 auto; padding: 90px 24px; }

/* Vision cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--card);
  transition: transform 0.35s var(--ease), border-color 0.35s, background 0.35s, box-shadow 0.35s;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(80% 60% at 50% 0%, rgba(139, 123, 255, 0.12), transparent 70%);
  opacity: 0; transition: opacity 0.35s;
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--line-2);
  background: var(--card-hover);
  box-shadow: var(--shadow);
}
.card:hover::before { opacity: 1; }
.card-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center;
  color: #08080d; margin-bottom: 20px;
  background: var(--grad);
  box-shadow: var(--glow);
}
.card-icon[data-i="2"] { background: linear-gradient(135deg, #5cc8ff, #43e0c0); }
.card-icon[data-i="3"] { background: linear-gradient(135deg, #43e0c0, #8b7bff); }
.card h3 { font-size: 22px; margin-bottom: 10px; }
.card p { color: var(--ink-soft); font-size: 15.5px; margin: 0; }

/* Stats */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  margin-bottom: 40px;
}
.stat {
  text-align: center; padding: 28px 16px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--card);
}
.stat-num {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(34px, 5vw, 46px); font-weight: 700;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-label { color: var(--muted); font-size: 14px; margin-top: 6px; }

/* Value grid */
.value-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.vcard {
  padding: 30px;
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--card);
  transition: transform 0.3s var(--ease), border-color 0.3s, background 0.3s;
}
.vcard:hover { transform: translateY(-4px); border-color: var(--line-2); background: var(--card-hover); }
.vcard h3 { font-size: 21px; margin-bottom: 10px; }
.vcard h3::before {
  content: "";
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--grad); margin-right: 10px; vertical-align: middle;
}
.vcard p { color: var(--ink-soft); font-size: 15.5px; margin: 0; }

/* ───────────── Offer ───────────── */
.offer { max-width: var(--maxw); margin: 0 auto; padding: 40px 24px 110px; }
.offer-card {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(139, 123, 255, 0.12), transparent 55%),
    radial-gradient(120% 120% at 100% 100%, rgba(67, 224, 192, 0.10), transparent 55%),
    var(--bg-2);
  box-shadow: var(--shadow);
}
.offer-copy { padding: 48px 44px; border-right: 1px solid var(--line); }
.offer-copy h2 { font-size: clamp(30px, 4vw, 42px); margin-bottom: 14px; }
.offer-copy .section-lede { margin-left: 0; text-align: left; }
.offer-points { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 12px; }
.offer-points li { color: var(--ink-soft); font-size: 15.5px; display: flex; align-items: center; gap: 12px; }
.offer-points span {
  flex: none; width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center; font-size: 12px; font-weight: 700;
  color: #08080d; background: var(--teal);
}

/* Form */
.offer-form { padding: 44px; display: grid; gap: 18px; align-content: start; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field { display: grid; gap: 7px; }
.field label { font-size: 14px; font-weight: 500; color: var(--ink-soft); }
.field .opt { color: var(--muted); font-weight: 400; }
.field input, .field textarea {
  width: 100%;
  padding: 13px 15px;
  border-radius: 12px;
  border: 1px solid var(--line-2);
  background: rgba(0, 0, 0, 0.28);
  color: var(--ink);
  font: inherit; font-size: 15.5px;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.field textarea { resize: vertical; min-height: 96px; }
.field input::placeholder, .field textarea::placeholder { color: #6a6a78; }
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: rgba(108, 184, 255, 0.7);
  box-shadow: 0 0 0 4px rgba(108, 184, 255, 0.14);
  background: rgba(0, 0, 0, 0.42);
}
.field input:user-invalid, .field textarea:user-invalid {
  border-color: rgba(255, 120, 120, 0.6);
}

#submit-btn { margin-top: 4px; }
.spinner {
  width: 17px; height: 17px; border-radius: 50%;
  border: 2px solid rgba(8, 8, 13, 0.35); border-top-color: #08080d;
  display: none; animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#submit-btn.loading .btn-label { opacity: 0.6; }
#submit-btn.loading .spinner { display: inline-block; }

.form-note { font-size: 14.5px; margin: 4px 0 0; min-height: 1px; }
.form-note.ok { color: var(--teal); }
.form-note.err { color: #ff9b9b; }
.form-fine { font-size: 13.5px; color: var(--muted); margin: 2px 0 0; }
.form-fine a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }

/* ───────────── Footer ───────────── */
.footer { border-top: 1px solid var(--line); margin-top: 20px; }
.footer-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 40px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.footer-brand .brand-name { font-size: 22px; }
.footer-brand p { color: var(--muted); font-size: 14px; margin: 6px 0 0; }
.footer-right { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.footer-link { color: var(--ink-soft); font-size: 15px; }
.footer-link:hover { color: var(--ink); }
.footer-copy { color: var(--muted); font-size: 13.5px; }

/* ───────────── Reveal animation ───────────── */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ───────────── Responsive ───────────── */
@media (max-width: 900px) {
  .cards { grid-template-columns: 1fr; }
  .value-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .offer-card { grid-template-columns: 1fr; }
  .offer-copy { border-right: none; border-bottom: 1px solid var(--line); padding: 38px 30px; }
  .offer-form { padding: 32px 30px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .hero { padding: 48px 20px 70px; }
  .vision, .value { padding: 64px 20px; }
  .search { max-width: 100%; }
  .search-text { font-size: 14.5px; }
  .hero-meta { font-size: 13px; }
}

/* ───────────── Reduced motion ───────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .bg-aurora { animation: none; }
}