/* site/src/styles.css */
/* Visual language: Things 3 meets Linear meets Obsidian — dark slate, violet accent, paper-cream text. */

:root {
  --bg-main: #0e1013;
  --bg-surface: #16181d;
  --bg-surface-elevated: #1f2229;
  --bg-surface-hover: #272a33;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: #6366f1;

  --text-primary: #f4f4f6;
  --text-secondary: #9da3af;
  --text-muted: #646a78;
  --text-inverse: #0e1013;

  --accent-primary: #6366f1;
  --accent-hover: #4f46e5;
  --accent-subtle: rgba(99, 102, 241, 0.12);
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "IBM Plex Serif", Georgia, serif;
  --font-mono: "JetBrains Mono", SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
}

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

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

/* Typography */
h1, h2, h3, h4 {
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: 2.75rem; line-height: 1.15; }
h2 { font-size: 1.85rem; line-height: 1.25; }
h3 { font-size: 1.25rem; }

p { color: var(--text-secondary); }

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover { color: #818cf8; }

code, pre {
  font-family: var(--font-mono);
}

/* Header & Nav */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 16, 19, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.85rem 1.5rem;
}

.nav-container {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.15rem;
}

.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.925rem;
  font-weight: 500;
  transition: color 0.15s ease;
}
.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1.15rem;
  font-size: 0.925rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}
.btn-secondary:hover {
  background: var(--bg-surface-hover);
  border-color: rgba(255, 255, 255, 0.18);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.825rem;
  border-radius: var(--radius-sm);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
  background: rgba(239, 68, 68, 0.25);
}

/* Container */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Hero Section */
.hero-section {
  padding: 4.5rem 1.5rem 3rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.3rem 0.85rem;
  background: var(--accent-subtle);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.hero-title {
  margin-bottom: 1.25rem;
}

.hero-description {
  font-size: 1.2rem;
  line-height: 1.6;
  margin-bottom: 2rem;
  color: var(--text-secondary);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Card & Surface */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s ease;
}
.card:hover {
  border-color: rgba(255, 255, 255, 0.14);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

/* Badge Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.badge-danger  { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.badge-neutral { background: rgba(255, 255, 255, 0.1); color: var(--text-secondary); }
.badge-info    { background: rgba(99, 102, 241, 0.15); color: #a5b4fc; }

/* Password Protection Overlay Modal */
#password-gate {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(14, 16, 19, 0.95);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.gate-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.gate-logo {
  width: 52px;
  height: 52px;
  display: block;
  margin: 0 0 1.25rem 0;
  border-radius: var(--radius-md);
}

.form-group {
  width: 100%;
  margin-top: 1.5rem;
  text-align: left;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease;
}
.form-input:focus {
  border-color: var(--border-focus);
}

.form-error {
  color: var(--accent-danger);
  font-size: 0.825rem;
  margin-top: 0.5rem;
}

/* Key Display Box */
.key-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: #a5b4fc;
  margin: 0.75rem 0;
  word-break: break-all;
}

/* Table styles */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.data-table th, .data-table td {
  padding: 0.75rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.875rem;
}

.data-table th {
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Tabs */
.tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
}

.tab-btn {
  padding: 0.65rem 1.15rem;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: 0.925rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

/* Footer */
footer.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 2.5rem 1.5rem;
  margin-top: 5rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}