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

:root {
  --bg-primary: #09090b;
  --bg-secondary: #111114;
  --bg-card: #131318;
  --bg-card-hover: #18181f;
  --border: #1e1e28;
  --border-hover: #00e5a0;
  --text-primary: #e8e8ed;
  --text-secondary: #71717a;
  --text-muted: #3f3f46;
  --accent: #00e5a0;
  --accent-secondary: #00b8d4;
  --accent-hover: #33ffbf;
  --accent-glow: rgba(0, 229, 160, 0.08);
  --accent-glow-strong: rgba(0, 229, 160, 0.15);
  --gradient-accent: linear-gradient(135deg, #00e5a0, #00b8d4);
  --radius: 8px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(0, 229, 160, 0.06);
  --transition: 0.15s ease;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
}

[data-theme="light"] {
  --bg-primary: #fafafa;
  --bg-secondary: #f0f0f2;
  --bg-card: #ffffff;
  --bg-card-hover: #f7f7f9;
  --border: #e4e4e7;
  --border-hover: #059669;
  --text-primary: #18181b;
  --text-secondary: #71717a;
  --text-muted: #a1a1aa;
  --accent: #059669;
  --accent-secondary: #0891b2;
  --accent-hover: #10b981;
  --accent-glow: rgba(5, 150, 105, 0.06);
  --accent-glow-strong: rgba(5, 150, 105, 0.1);
  --gradient-accent: linear-gradient(135deg, #059669, #0891b2);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-glow: 0 0 20px rgba(5, 150, 105, 0.04);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Subtle grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
}

/* Header */
.header {
  text-align: center;
  padding: 3.5rem 1.5rem 1rem;
}

.header h1 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header .greeting {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 0.35rem;
  font-family: var(--font-mono);
}

/* Status bar accent line */
.header::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: var(--gradient-accent);
  margin: 1.25rem auto 0;
  border-radius: 1px;
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(var(--columns, 4), 1fr);
  gap: 1rem;
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem 3rem;
}

/* Card */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.card:hover::before {
  opacity: 1;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--border);
}

.card-header svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
  flex-shrink: 0;
}

.card-header h2 {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* Links */
.link-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.link-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.6rem;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 450;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.link-item:hover {
  background: var(--accent-glow);
  color: var(--accent-hover);
  border-color: var(--accent-glow-strong);
}

.link-item svg {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: color var(--transition);
}

.link-item:hover svg {
  color: var(--accent);
}

/* Clock */
.clock-display {
  text-align: center;
  padding: 0.75rem 0;
}

.clock-time {
  font-size: 2.4rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-family: var(--font-mono);
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.clock-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* Search */
.search-form {
  display: flex;
  gap: 0.5rem;
}

.search-input {
  flex: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: var(--font-sans);
  outline: none;
  transition: all var(--transition);
}

.search-input::placeholder {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-btn {
  background: var(--gradient-accent);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.9rem;
  color: #09090b;
  cursor: pointer;
  display: flex;
  align-items: center;
  font-weight: 600;
  transition: all var(--transition);
}

.search-btn:hover {
  opacity: 0.85;
  box-shadow: 0 0 12px var(--accent-glow-strong);
}

.search-btn svg {
  width: 14px;
  height: 14px;
}

/* Notes */
.notes-textarea {
  width: 100%;
  min-height: 120px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.7rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.7;
  resize: vertical;
  outline: none;
  transition: all var(--transition);
}

.notes-textarea::placeholder {
  color: var(--text-muted);
}

.notes-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Iframe */
.iframe-container {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}

.iframe-container iframe {
  width: 100%;
  border: none;
  display: block;
}

/* HTML content */
.html-content {
  font-size: 0.85rem;
  line-height: 1.6;
}

.html-content code {
  font-family: var(--font-mono);
  background: var(--bg-secondary);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  font-size: 0.8em;
}

/* Responsive */
@media (max-width: 1200px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .grid {
    grid-template-columns: 1fr;
    padding: 1rem;
  }
  .header { padding: 2rem 1rem 0.5rem; }
  .clock-time { font-size: 1.8rem; }
}