/* KeyMy.id — bright, playful brand */
:root {
  --cyan: #00FFFF;
  --magenta: #FF00FC;
  --green: #00FF02;
  --azure: #00B7FF;
  --mint: #7DFFD4;
  --teal: #00C9A7;
  --coral: #FF7A59;
  --orange: #FFB347;
  --ink: #101226;
  --ink-soft: #2a2d4a;
  --paper: #FDFDFF;
  --radius: 18px;
  --font: "Nunito", "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  overflow-x: hidden;
}

::selection { background: var(--magenta); color: #fff; }

a { color: var(--azure); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(253, 253, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--cyan), var(--magenta), var(--green), var(--azure)) 1;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.wordmark {
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  background: linear-gradient(90deg, var(--azure), var(--magenta));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.wordmark:hover { text-decoration: none; filter: brightness(1.15); }
.wordmark .dot { color: var(--teal); -webkit-text-fill-color: var(--teal); }

nav.main-nav { display: flex; gap: 26px; align-items: center; }
nav.main-nav a {
  color: var(--ink);
  font-weight: 700;
  font-size: 0.95rem;
}
nav.main-nav a:hover { color: var(--magenta); text-decoration: none; }
nav.main-nav a.nav-cta {
  background: linear-gradient(90deg, var(--mint), var(--teal));
  color: var(--ink);
  padding: 8px 18px;
  border-radius: 999px;
  box-shadow: 0 3px 0 rgba(0,0,0,0.15);
}
nav.main-nav a.nav-cta:hover { transform: translateY(-1px); color: var(--ink); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--ink);
}
.hero video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(16,18,38,0.25) 0%, rgba(16,18,38,0.55) 70%, rgba(16,18,38,0.85) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  padding: 90px 24px;
  color: #fff;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  font-weight: 900;
  line-height: 1.1;
  text-shadow: 0 4px 24px rgba(0,0,0,0.5);
}
.hero h1 em {
  font-style: italic;
  text-decoration: underline;
  text-decoration-color: var(--magenta);
  text-decoration-thickness: 5px;
  text-underline-offset: 8px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.sub {
  margin-top: 22px;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 600;
  color: #eafffb;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 0 2px 12px rgba(0,0,0,0.6);
}
.hero .scroll-hint {
  display: inline-block;
  margin-top: 34px;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 800;
  color: var(--ink);
  background: linear-gradient(90deg, var(--mint), var(--teal));
  box-shadow: 0 4px 0 rgba(0,0,0,0.25);
  transition: transform 0.15s ease;
}
.hero .scroll-hint:hover { transform: translateY(-2px); text-decoration: none; }

/* ---------- Sections ---------- */
section.block { padding: 76px 0; }
section.block.tint {
  background: linear-gradient(135deg, #E6FFFA 0%, #E0FBFF 50%, #FFF3EC 100%);
}
.block h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 900;
  margin-bottom: 18px;
  line-height: 1.2;
}
.block h2 .hl { color: var(--teal); }
.block p.lead {
  font-size: 1.12rem;
  max-width: 720px;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 36px;
}
.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 26px;
  border-top: 6px solid var(--cyan);
  box-shadow: 0 8px 24px rgba(16,18,38,0.08);
  transition: transform 0.15s ease;
}
.card:hover { transform: translateY(-4px); }
.card:nth-child(2) { border-top-color: var(--magenta); }
.card:nth-child(3) { border-top-color: var(--green); }
.card .emoji { font-size: 2rem; }
.card h3 { margin: 10px 0 8px; font-size: 1.15rem; font-weight: 800; }
.card p { font-size: 0.98rem; color: var(--ink-soft); }

/* ---------- Demo / login section ---------- */
.demo {
  text-align: center;
  padding: 84px 0;
  background: var(--ink);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.demo::before {
  content: "";
  position: absolute;
  inset: -40%;
  background:
    radial-gradient(circle at 20% 30%, rgba(0,255,255,0.18), transparent 40%),
    radial-gradient(circle at 80% 20%, rgba(255,0,252,0.16), transparent 40%),
    radial-gradient(circle at 60% 85%, rgba(0,255,2,0.12), transparent 40%),
    radial-gradient(circle at 15% 80%, rgba(0,183,255,0.16), transparent 40%);
  z-index: 0;
}
.demo .wrap { position: relative; z-index: 1; }
.demo h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 900;
  max-width: 760px;
  margin: 0 auto 34px;
  line-height: 1.35;
}
.demo h2 .brand-glow {
  background: linear-gradient(90deg, var(--cyan), var(--azure));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.facein-btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font);
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--ink);
  background: linear-gradient(90deg, var(--cyan) 0%, var(--mint) 50%, var(--green) 100%);
  border: none;
  border-radius: 999px;
  padding: 18px 42px;
  cursor: pointer;
  box-shadow: 0 6px 0 rgba(0,0,0,0.35), 0 0 40px rgba(0,255,255,0.35);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.facein-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 0 rgba(0,0,0,0.35), 0 0 60px rgba(0,255,255,0.5);
}
.facein-btn:active { transform: translateY(2px); box-shadow: 0 2px 0 rgba(0,0,0,0.35); }
.facein-btn .face-ic { font-size: 1.5rem; }
.facein-btn[disabled] { opacity: 0.7; cursor: wait; }

.demo-status {
  margin-top: 22px;
  min-height: 26px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--mint);
}
.demo-status.error { color: var(--coral); }

/* ---------- Success page ---------- */
.success-hero {
  text-align: center;
  padding: 100px 24px 70px;
  background:
    radial-gradient(circle at 20% 10%, rgba(0,255,255,0.22), transparent 45%),
    radial-gradient(circle at 85% 25%, rgba(255,0,252,0.16), transparent 45%),
    radial-gradient(circle at 50% 100%, rgba(0,255,2,0.14), transparent 50%),
    linear-gradient(135deg, #E6FFFA 0%, #E0FBFF 60%, #FFF3EC 100%);
}
.success-hero .check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  font-size: 3rem;
  background: linear-gradient(135deg, var(--mint), var(--teal));
  box-shadow: 0 8px 30px rgba(0,201,167,0.45);
  margin-bottom: 28px;
  animation: pop 0.5s cubic-bezier(0.2, 1.6, 0.4, 1);
}
@keyframes pop {
  0% { transform: scale(0.2); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}
.success-hero h1 {
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 900;
  line-height: 1.25;
  max-width: 860px;
  margin: 0 auto;
}
.success-hero h1 .grad {
  background: linear-gradient(90deg, var(--teal), var(--azure), var(--magenta));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.success-copy { padding: 60px 0 30px; }
.success-copy .wrap { max-width: 780px; }
.success-copy p { font-size: 1.12rem; color: var(--ink-soft); margin-bottom: 18px; }
.success-copy p strong { color: var(--ink); }
.success-copy .bio-line {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--ink);
  padding: 22px 26px;
  border-radius: var(--radius);
  background: linear-gradient(90deg, rgba(0,255,255,0.14), rgba(255,0,252,0.12));
  border-left: 6px solid var(--magenta);
  margin: 28px 0;
}

.cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 20px 0 80px;
}
.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 1rem;
  transition: transform 0.12s ease;
  box-shadow: 0 4px 0 rgba(0,0,0,0.18);
}
.btn:hover { transform: translateY(-2px); text-decoration: none; }
.btn-primary { background: linear-gradient(90deg, var(--cyan), var(--azure)); color: var(--ink); }
.btn-secondary { background: linear-gradient(90deg, var(--magenta), var(--coral)); color: #fff; }
.btn-ghost { background: #fff; color: var(--ink); border: 2px solid var(--teal); box-shadow: none; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: #b9c0e8;
  padding: 34px 0;
  font-size: 0.92rem;
  border-top: 4px solid transparent;
  border-image: linear-gradient(90deg, var(--green), var(--cyan), var(--azure), var(--magenta)) 1;
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.site-footer a { color: var(--cyan); font-weight: 700; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .cards { grid-template-columns: 1fr; }
  nav.main-nav { gap: 14px; }
  nav.main-nav a { font-size: 0.88rem; }
  .hero { min-height: 62vh; }
  .site-footer .wrap { justify-content: center; text-align: center; }
}