@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  /* Premium modern light palette */
  --genai-border: rgba(15, 23, 42, 0.08);
  --genai-surface: linear-gradient(135deg, rgba(20, 184, 166, 0.04) 0%, rgba(245, 158, 11, 0.04) 100%);
  --genai-card: rgba(255, 255, 255, 0.7);
  --genai-shadow: 0 12px 32px -4px rgba(15, 23, 42, 0.05), 0 4px 12px -4px rgba(15, 23, 42, 0.04);
  --genai-shadow-hover: 0 24px 48px -8px rgba(15, 23, 42, 0.12), 0 8px 16px -6px rgba(20, 184, 166, 0.2);
  --genai-ink-soft: #475569;
  --genai-teal: #0d9488;
  --genai-amber: #d97706;
  --genai-slate: #0f172a;
  --genai-glass-blur: blur(16px);
  --genai-transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  --md-text-font: 'Inter', -apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif;
  --md-code-font: 'Fira Code', 'JetBrains Mono', Consolas, Menlo, monospace;
}

[data-md-color-scheme="slate"] {
  /* Premium modern dark palette */
  --genai-border: rgba(148, 163, 184, 0.15);
  --genai-surface: linear-gradient(135deg, rgba(45, 212, 191, 0.08) 0%, rgba(250, 204, 21, 0.05) 100%);
  --genai-card: rgba(15, 23, 42, 0.65);
  --genai-shadow: 0 12px 32px -4px rgba(2, 6, 23, 0.6), 0 4px 12px -4px rgba(2, 6, 23, 0.4);
  --genai-shadow-hover: 0 24px 48px -8px rgba(2, 6, 23, 0.8), 0 0 20px -5px rgba(45, 212, 191, 0.15);
  --genai-ink-soft: #94a3b8;
  --genai-teal: #14b8a6;
  --genai-amber: #f59e0b;
}

/* Base Overrides for Premium Typographic Feel */
body {
  font-family: var(--md-text-font);
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .md-typeset h1, .md-typeset h2, .md-typeset h3, .md-typeset h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Glassmorphism Shells & Heroes */
.landing-hero,
.tool-shell {
  border: 1px solid var(--genai-border);
  background: var(--genai-surface);
  border-radius: 1.5rem;
  box-shadow: var(--genai-shadow);
  backdrop-filter: var(--genai-glass-blur);
  -webkit-backdrop-filter: var(--genai-glass-blur);
  position: relative;
  overflow: hidden;
}

.landing-hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background: radial-gradient(circle at top right, rgba(20, 184, 166, 0.1), transparent 50%),
              radial-gradient(circle at bottom left, rgba(245, 158, 11, 0.05), transparent 40%);
  z-index: 0;
  pointer-events: none;
}

.landing-hero {
  padding: 2.5rem;
  margin-bottom: 2rem;
}

.landing-hero > * {
  position: relative;
  z-index: 1;
}

.landing-kicker {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.35rem 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--genai-teal);
  background: rgba(20, 184, 166, 0.1);
  border-radius: 999px;
  border: 1px solid rgba(20, 184, 166, 0.2);
}

.landing-copy {
  max-width: 54rem;
  color: var(--genai-ink-soft);
  font-size: 1.15rem;
  line-height: 1.6;
  font-weight: 400;
}

.landing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* Micro-Animated Premium Grid */
.landing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 2rem;
}

.tool-card,
.stat-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.5rem;
  border-radius: 1.25rem;
  border: 1px solid var(--genai-border);
  background: var(--genai-card);
  box-shadow: var(--genai-shadow);
  backdrop-filter: var(--genai-glass-blur);
  -webkit-backdrop-filter: var(--genai-glass-blur);
  position: relative;
  overflow: hidden;
}

.tool-card {
  text-decoration: none;
  color: inherit;
  transition: var(--genai-transition);
  cursor: pointer;
}

.tool-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--genai-teal), var(--genai-amber));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tool-card:hover {
  transform: translateY(-4px) scale(1.01);
  border-color: rgba(20, 184, 166, 0.4);
  box-shadow: var(--genai-shadow-hover);
}

.tool-card:hover::after {
  opacity: 1;
}

.tool-card strong {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.tool-card span,
.stat-card span,
.tool-summary,
.tool-hint,
.progress-meta {
  color: var(--genai-ink-soft);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Stats Strip */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 2rem;
}

.stat-card {
  align-items: center;
  text-align: center;
  padding: 1.75rem 1rem;
  background: linear-gradient(180deg, var(--genai-card), transparent);
}

.stat-card strong {
  font-size: 2.2rem;
  line-height: 1;
  font-weight: 800;
  background: linear-gradient(135deg, var(--genai-teal), var(--genai-amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.25rem;
}

/* Tools Shell Details */
.tool-shell {
  padding: 1.5rem;
  margin: 1.5rem 0 2rem;
}

.tool-toolbar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--genai-border);
}

.tool-toolbar label {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--genai-ink-soft);
}

.tool-toolbar select,
.tool-toolbar input,
.tool-button {
  border-radius: 0.75rem;
  border: 1px solid var(--genai-border);
  background: var(--genai-card);
  color: inherit;
  padding: 0.8rem 1rem;
  font: inherit;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  backdrop-filter: var(--genai-glass-blur);
}

.tool-toolbar select:focus,
.tool-toolbar input:focus {
  outline: none;
  border-color: var(--genai-teal);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
}

.tool-search {
  grid-column: span 1;
}

.tool-button {
  align-self: end;
  cursor: pointer;
  font-weight: 700;
  background: var(--genai-teal);
  color: #fff;
  border: none;
}

.tool-button:hover {
  background: #0f766e;
  transform: translateY(-2px);
  box-shadow: 0 8px 16px -4px rgba(20, 184, 166, 0.3);
}

.tool-summary {
  margin-bottom: 1rem;
  font-size: 1.05rem;
  font-weight: 500;
}

/* Canvas Graph */
.graph-canvas {
  display: block;
  width: 100%;
  min-height: 560px;
  border-radius: 1.25rem;
  border: 1px solid var(--genai-border);
  background: radial-gradient(circle at center, rgba(15, 23, 42, 0.01), rgba(15, 23, 42, 0.06));
  box-shadow: inset 0 2px 12px rgba(15, 23, 42, 0.02);
  cursor: default;
}

[data-md-color-scheme="slate"] .graph-canvas {
  background: radial-gradient(circle at center, rgba(15, 23, 42, 0.3), rgba(2, 6, 23, 0.7));
  box-shadow: inset 0 2px 20px rgba(0, 0, 0, 0.2);
}

/* Matrix Table */
.matrix-table-wrap {
  overflow-x: auto;
  border-radius: 1rem;
  border: 1px solid var(--genai-border);
  background: var(--genai-card);
  backdrop-filter: var(--genai-glass-blur);
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
}

.matrix-table th,
.matrix-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--genai-border);
  text-align: left;
  vertical-align: middle;
}

.matrix-table th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--genai-ink-soft);
  background: rgba(15, 23, 42, 0.02);
}

[data-md-color-scheme="slate"] .matrix-table th {
  background: rgba(255, 255, 255, 0.02);
}

/* Roles / Pills */
.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
}

.status-must {
  background: rgba(239, 68, 68, 0.1);
  color: #b91c1c;
  border-color: rgba(239, 68, 68, 0.2);
}

.status-good {
  background: rgba(20, 184, 166, 0.1);
  color: #0f766e;
  border-color: rgba(20, 184, 166, 0.2);
}

.status-optional {
  background: rgba(245, 158, 11, 0.1);
  color: #b45309;
  border-color: rgba(245, 158, 11, 0.2);
}

.status-not-relevant {
  background: rgba(100, 116, 139, 0.1);
  color: #475569;
  border-color: rgba(100, 116, 139, 0.2);
}

[data-md-color-scheme="slate"] .status-must {
  color: #f87171;
}

[data-md-color-scheme="slate"] .status-good {
  color: #5eead4;
}

[data-md-color-scheme="slate"] .status-optional {
  color: #fcd34d;
}

[data-md-color-scheme="slate"] .status-not-relevant {
  color: #cbd5e1;
}

/* Progress Tracker */
.progress-shell {
  margin-bottom: 2rem;
}

.progress-bar {
  height: 1rem;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(100, 116, 139, 0.15);
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.05);
}

.progress-bar span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--genai-teal), #2dd4bf, var(--genai-amber));
  border-radius: 999px;
  transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 10px rgba(45, 212, 191, 0.4);
}

.progress-section {
  padding: 1.5rem 0;
  border-top: 1px solid var(--genai-border);
}

.progress-section h2 {
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}

.progress-list {
  display: grid;
  gap: 0.85rem;
}

.progress-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem 1.25rem;
  border-radius: 1rem;
  background: var(--genai-card);
  border: 1px solid var(--genai-border);
  backdrop-filter: var(--genai-glass-blur);
  transition: var(--genai-transition);
  cursor: pointer;
}

.progress-item:hover {
  transform: translateX(4px);
  border-color: rgba(20, 184, 166, 0.3);
  box-shadow: var(--genai-shadow);
}

.progress-item.completed {
  opacity: 0.65;
  background: rgba(20, 184, 166, 0.05);
  border-color: rgba(20, 184, 166, 0.15);
}

.progress-item.completed a {
  text-decoration: line-through;
  color: var(--genai-ink-soft);
}

.progress-item input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--genai-teal);
  cursor: pointer;
  margin: 0;
}

.progress-item a {
  font-weight: 600;
  text-decoration: none;
  font-size: 1rem;
  color: inherit;
  transition: color 0.2s ease;
}

.progress-time {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--genai-ink-soft);
  background: rgba(100, 116, 139, 0.1);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}

@media (min-width: 721px) {
  .tool-search {
    grid-column: span 2;
  }
}

@media (max-width: 720px) {
  .landing-hero {
    padding: 1.75rem;
  }

  .graph-canvas {
    min-height: 400px;
  }

  .progress-item {
    grid-template-columns: auto 1fr;
    align-items: start;
    padding: 0.85rem 1rem;
  }

  .progress-item input[type="checkbox"] {
    margin-top: 0.2rem;
  }

  .progress-time {
    grid-column: 2;
    justify-self: start;
    margin-top: 0.25rem;
  }
  
  .stats-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}