:root {
  --bg: #04161a;
  --bg-2: #06222a;
  --teal: #2ff3e0;
  --teal-deep: #00b8a9;
  --cyan: #38d6ff;
  --ink: #e7fbf7;
  --muted: #84b3ad;
  --line: rgba(47, 243, 224, 0.16);
  --card: rgba(8, 38, 44, 0.55);
  --danger: #ff6b8a;
  --radius: 18px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  position: relative;
  font-family: 'Space Grotesk', system-ui, sans-serif;
  color: var(--ink);
  background: radial-gradient(1200px 700px at 50% -10%, #0a2d35 0%, var(--bg) 55%) fixed;
  overflow-x: hidden;
}

/* Ambient futuristic background */
.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(800px 600px at 50% 12%, #000 0%, transparent 75%);
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}
.glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}
.glow--1 { width: 460px; height: 460px; background: #0bd9c4; top: -120px; left: -80px; }
.glow--2 { width: 520px; height: 520px; background: #1f8cff; bottom: -180px; right: -120px; opacity: 0.28; }

.shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(28px, 6vw, 72px) clamp(18px, 4vw, 40px) 40px;
}

/* Hero */
.hero { text-align: center; margin-bottom: clamp(26px, 4vw, 44px); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: 'Space Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 15px;
  background: rgba(47, 243, 224, 0.05);
}
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 12px var(--teal);
  animation: pulse 1.8s var(--ease) infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

.title {
  font-size: clamp(40px, 9vw, 92px);
  line-height: 0.95;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 18px 0 14px;
  background: linear-gradient(180deg, #ffffff 0%, var(--teal) 60%, var(--teal-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 60px rgba(47, 243, 224, 0.25);
}
.title__sep { color: var(--cyan); -webkit-text-fill-color: var(--cyan); }
.subtitle {
  max-width: 620px;
  margin: 0 auto;
  color: var(--muted);
  font-size: clamp(15px, 2.2vw, 18px);
  line-height: 1.55;
}
.subtitle strong { color: var(--ink); font-weight: 500; }

/* Prompt */
.prompt { max-width: 760px; margin: 0 auto; }
.prompt__field {
  display: flex;
  gap: 10px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  backdrop-filter: blur(14px);
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.8), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.prompt__field:focus-within {
  border-color: rgba(47, 243, 224, 0.55);
  box-shadow: 0 0 0 4px rgba(47, 243, 224, 0.1), 0 24px 60px -30px rgba(0, 0, 0, 0.8);
}
.prompt__input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--ink);
  font-family: inherit;
  font-size: 16px;
  padding: 0 12px;
}
.prompt__input::placeholder { color: rgba(132, 179, 173, 0.7); }

.prompt__btn {
  position: relative;
  flex-shrink: 0;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.01em;
  color: #04161a;
  padding: 0 26px;
  height: 50px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--teal) 0%, var(--cyan) 100%);
  box-shadow: 0 8px 24px -8px rgba(47, 243, 224, 0.6);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), opacity 0.18s var(--ease);
}
.prompt__btn:hover { transform: translateY(-1px); box-shadow: 0 12px 30px -8px rgba(47, 243, 224, 0.7); }
.prompt__btn:active { transform: translateY(0); }
.prompt__btn:disabled { cursor: progress; opacity: 0.85; }
.prompt__btn-spinner {
  display: none;
  width: 16px; height: 16px;
  margin-left: 9px;
  border: 2px solid rgba(4, 22, 26, 0.35);
  border-top-color: #04161a;
  border-radius: 50%;
  vertical-align: -3px;
  animation: spin 0.7s linear infinite;
}
.is-loading .prompt__btn-spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.prompt__hint {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  margin: 14px 0 0;
}

/* Status (loading / error / empty) */
.status {
  max-width: 760px;
  margin: 26px auto 0;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--muted);
  font-size: 14.5px;
  text-align: center;
}
.status--error { border-color: rgba(255, 107, 138, 0.4); color: #ffd0da; background: rgba(255, 107, 138, 0.08); }
.status--loading { color: var(--teal); }
.status__bar {
  height: 3px;
  margin-top: 12px;
  border-radius: 3px;
  background: linear-gradient(90deg, transparent, var(--teal), transparent);
  background-size: 200% 100%;
  animation: sweep 1.3s linear infinite;
}
@keyframes sweep { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Results */
.results {
  margin-top: clamp(30px, 5vw, 48px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 18px;
}
.card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(13, 48, 55, 0.7), rgba(6, 30, 36, 0.55));
  backdrop-filter: blur(12px);
  padding: 24px 22px 22px;
  overflow: hidden;
  opacity: 0;
  transform: translateY(14px);
  animation: rise 0.5s var(--ease) forwards;
}
.card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--cyan), transparent);
}
.card:nth-child(2) { animation-delay: 0.08s; }
.card:nth-child(3) { animation-delay: 0.16s; }
@keyframes rise { to { opacity: 1; transform: translateY(0); } }

.card__index {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--teal-deep);
}
.card__title {
  font-size: 21px;
  line-height: 1.2;
  margin: 6px 0 16px;
  color: #fff;
}
.card__section { margin-top: 14px; }
.card__label {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 5px;
}
.card__section p { margin: 0; color: #cfeae5; font-size: 14.5px; line-height: 1.55; }
.card__section--unique p { color: var(--ink); }
.card__text {
  margin: 0;
  color: #d8efea;
  font-size: 15px;
  line-height: 1.62;
  white-space: pre-wrap;
}

.footer {
  position: relative;
  z-index: 1;
  text-align: center;
  color: rgba(132, 179, 173, 0.6);
  font-size: 12.5px;
  padding: 10px 20px 34px;
}

@media (prefers-reduced-motion: reduce) {
  .card { animation: none; opacity: 1; transform: none; }
  .dot, .status__bar, .prompt__btn-spinner { animation: none; }
}