:root {
  --bg: #0b1020;
  --bg-soft: rgba(14, 21, 43, 0.76);
  --card: rgba(14, 19, 38, 0.82);
  --card-border: rgba(255, 255, 255, 0.12);
  --text: #f4efe7;
  --muted: #c9c0b4;
  --accent: #f4b860;
  --accent-2: #7dd3fc;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.36);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

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

body {
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(244, 184, 96, 0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(125, 211, 252, 0.14), transparent 26%),
    linear-gradient(160deg, #070b15 0%, #0d1630 55%, #08101d 100%);
  font-family: "Georgia", "Times New Roman", serif;
}

button,
textarea {
  font: inherit;
}

.page-shell {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  padding: 32px 20px 48px;
}

.ambient {
  position: absolute;
  border-radius: 999px;
  filter: blur(20px);
  opacity: 0.55;
  pointer-events: none;
}

.ambient-a {
  top: -40px;
  left: -60px;
  width: 220px;
  height: 220px;
  background: rgba(244, 184, 96, 0.18);
}

.ambient-b {
  right: -40px;
  bottom: 20px;
  width: 280px;
  height: 280px;
  background: rgba(125, 211, 252, 0.14);
}

.app {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
}

.hero {
  margin-bottom: 22px;
}

.eyebrow {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin-bottom: 14px;
}

h1 {
  margin: 0;
  font-size: clamp(3rem, 7vw, 5.6rem);
  line-height: 0.94;
  letter-spacing: -0.05em;
}

.lede {
  max-width: 700px;
  margin: 14px 0 0;
  color: var(--muted);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  font-size: 1.05rem;
  line-height: 1.7;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.composer {
  padding: 22px;
}

.label {
  display: block;
  margin-bottom: 10px;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--muted);
  font-size: 0.92rem;
}

textarea {
  width: 100%;
  resize: vertical;
  min-height: 130px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 16px 18px;
  outline: none;
  line-height: 1.6;
}

textarea:focus {
  border-color: rgba(244, 184, 96, 0.6);
  box-shadow: 0 0 0 4px rgba(244, 184, 96, 0.12);
}

.controls {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
}

.mode-switch {
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.mode-btn,
.solve-btn,
.chip {
  border: 0;
  cursor: pointer;
  transition:
    transform 0.18s ease,
    background 0.18s ease,
    color 0.18s ease,
    box-shadow 0.18s ease;
}

.mode-btn {
  padding: 10px 14px;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
}

.mode-btn.active {
  background: linear-gradient(135deg, rgba(244, 184, 96, 0.96), rgba(244, 159, 71, 0.92));
  color: #1a140c;
  box-shadow: 0 10px 28px rgba(244, 184, 96, 0.24);
}

.solve-btn {
  padding: 14px 18px;
  border-radius: 16px;
  color: #161616;
  font-weight: 700;
  background: linear-gradient(135deg, #f8d28d, #f4b860 45%, #f6a54d);
  box-shadow: 0 18px 40px rgba(244, 184, 96, 0.25);
}

.install-btn {
  width: 100%;
  margin-top: 12px;
  padding: 13px 16px;
  border-radius: 16px;
  border: 1px solid rgba(125, 211, 252, 0.22);
  background: rgba(125, 211, 252, 0.1);
  color: var(--text);
  font-weight: 700;
}

.solve-btn:hover,
.mode-btn:hover,
.chip:hover {
  transform: translateY(-1px);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.chip {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.results-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.95fr);
  gap: 18px;
  margin-top: 18px;
}

.result-card,
.sidebar-card,
.examples-card {
  padding: 22px;
}

.result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

h2 {
  margin: 0 0 16px;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 84px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(125, 211, 252, 0.12);
  color: var(--accent-2);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  font-size: 0.82rem;
}

.answer {
  min-height: 250px;
  border-radius: 20px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  line-height: 1.72;
  font-size: 1.02rem;
}

.answer h3,
.answer p {
  margin-top: 0;
}

.answer .headline {
  margin-bottom: 10px;
  color: var(--accent);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.76rem;
}

.answer .summary {
  margin: 0 0 14px;
}

.answer .memory {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--accent-2);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
}

.empty-state {
  display: grid;
  place-items: center;
  color: rgba(244, 239, 231, 0.74);
  text-align: center;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
}

.points {
  padding-left: 18px;
  margin: 0;
  color: var(--text);
  line-height: 1.75;
}

.empty-list {
  color: rgba(244, 239, 231, 0.74);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
}

.mini-panel {
  margin-top: 18px;
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.mini-label {
  margin-bottom: 6px;
  color: var(--accent);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.examples-card {
  margin-top: 18px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-grid div {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.feature-grid h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.feature-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
}

@media (max-width: 900px) {
  .results-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding: 14px 10px 24px;
  }

  .composer,
  .result-card,
  .sidebar-card,
  .examples-card {
    padding: 16px;
  }

  .controls {
    align-items: stretch;
  }

  .mode-switch,
  .solve-btn {
    width: 100%;
  }

  .mode-switch {
    justify-content: space-between;
  }

  .mode-btn {
    flex: 1;
  }

  .results-grid {
    gap: 14px;
  }

  .answer {
    min-height: 220px;
  }

  .feature-grid div {
    border-radius: 16px;
  }
}