"""
Custom CSS injected into the Gradio Blocks app to match the SERAPH
design system (dark glass UI, monospace sequence nodes, etc.).
"""

CUSTOM_CSS = """
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --bg-base: #060608;
  --bg-surface: rgba(255, 255, 255, 0.025);
  --bg-surface-hover: rgba(255, 255, 255, 0.05);
  --bg-glass: rgba(10, 10, 14, 0.78);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(255, 255, 255, 0.22);

  --text-main: #f5f5f7;
  --text-muted: #8e8e93;
  --text-dim: #55555a;
  --accent-glow: rgba(255, 255, 255, 0.15);
  --success-green: #10b981;

  --color-h: #fb7185;
  --bg-h: rgba(251, 113, 133, 0.15);
  --color-e: #38bdf8;
  --bg-e: rgba(56, 189, 248, 0.15);
  --color-c: #94a3b8;
  --bg-c: rgba(148, 163, 184, 0.15);

  --font-heading: 'Space Grotesk', -apple-system, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

body, .gradio-container {
  background-color: var(--bg-base) !important;
  color: var(--text-main) !important;
  font-family: var(--font-body) !important;
  max-width: 900px !important;
  margin: 0 auto !important;
  padding: 20px !important;
}

/* Headers */
.hero-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(180deg, #ffffff 0%, rgba(255, 255, 255, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
  text-align: center;
}

.hero-subtitle {
  color: var(--text-muted);
  text-align: center;
  font-size: 0.95rem;
  margin-bottom: 28px;
}

/* Back-to-portfolio button */
.back-to-portfolio {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted) !important;
  text-decoration: none !important;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 99px;
  padding: 6px 14px;
  transition: all 0.2s ease;
}

.back-to-portfolio:hover {
  color: var(--text-main) !important;
  border-color: var(--border-accent);
  background: rgba(255, 255, 255, 0.08);
}

/* Custom Gradio Textbox & Dropdown Overrides */
.gradio-container textarea, .gradio-container input, .gradio-container select {
  background: rgba(255, 255, 255, 0.03) !important;
  border: 1px solid var(--border-subtle) !important;
  border-radius: 12px !important;
  color: var(--text-main) !important;
  font-family: var(--font-mono) !important;
}

.gradio-container textarea:focus, .gradio-container input:focus {
  border-color: var(--border-accent) !important;
  box-shadow: 0 0 12px var(--accent-glow) !important;
}

/* Action Buttons */
.btn-magnetic {
  background: #ffffff !important;
  color: #000000 !important;
  border-radius: 99px !important;
  font-weight: 600 !important;
  font-size: 0.9rem !important;
  border: none !important;
  padding: 12px 28px !important;
  cursor: pointer !important;
  transition: all 0.25s ease !important;
}

.btn-magnetic:hover {
  box-shadow: 0 0 24px var(--accent-glow) !important;
  transform: translateY(-1px);
}

/* Sequence Node Visualizer Grid */
.sequence-board {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 24px;
}

.sequence-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.seq-node {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  width: 38px;
  height: 58px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  user-select: none;
}

.seq-aa {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-main);
}

.seq-state {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
}

.seq-node[data-state="C"] .seq-state { background: var(--bg-c); color: var(--color-c); }
.seq-node[data-state="H"] .seq-state { background: var(--bg-h); color: var(--color-h); }
.seq-node[data-state="E"] .seq-state { background: var(--bg-e); color: var(--color-e); }

/* Board Legend */
.board-legend {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-dot { width: 8px; height: 8px; border-radius: 50%; }
.legend-dot.c { background: var(--color-c); }
.legend-dot.h { background: var(--color-h); }
.legend-dot.e { background: var(--color-e); }

/* Metrics & Alignment Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 20px;
  text-align: center;
}

.metric-card.winner {
  border-color: var(--border-accent);
  background: radial-gradient(circle at 50% -20%, rgba(255,255,255,0.06) 0%, var(--bg-surface) 70%);
}

.metric-value {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 6px;
  background: linear-gradient(180deg, #ffffff 0%, #a1a1aa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.alignment-card {
  background: rgba(10, 10, 14, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 20px;
  overflow-x: auto;
}

.align-row {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

.row-label {
  width: 120px;
  flex-shrink: 0;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.row-seq {
  font-size: 0.92rem;
  letter-spacing: 3px;
  color: var(--text-main);
  white-space: nowrap;
}

.row-seq .match { color: var(--success-green); }
.row-seq .miss { color: #ef4444; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
"""