/* ============================================
   PRIVACY TOOLKIT — Global Styles
   Dark cybersecurity aesthetic, mobile-first
   ============================================ */

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

/* --- CSS Variables --- */
:root {
  /* Palette */
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #151c2c;
  --bg-card-hover: #1a2235;
  --bg-input: #0d1220;
  --border: #1e293b;
  --border-focus: #00e5bf;

  /* Text */
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-heading: #f1f5f9;

  /* Accents */
  --accent: #00e5bf;
  --accent-dim: rgba(0, 229, 191, 0.15);
  --accent-glow: rgba(0, 229, 191, 0.3);
  --danger: #ef4444;
  --danger-dim: rgba(239, 68, 68, 0.15);
  --warning: #f59e0b;
  --warning-dim: rgba(245, 158, 11, 0.15);
  --success: #22c55e;
  --success-dim: rgba(34, 197, 94, 0.15);
  --info: #3b82f6;
  --info-dim: rgba(59, 130, 246, 0.15);

  /* Typography */
  --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 64px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 150ms var(--ease-out);
  --transition-base: 250ms var(--ease-out);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Subtle grid/noise background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(0, 229, 191, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}
a:hover { opacity: 0.8; }

img { max-width: 100%; display: block; }

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

/* --- Navigation --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text-heading);
}

.nav__logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav__links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}
.nav__links a:hover,
.nav__links a.active {
  color: var(--accent);
  opacity: 1;
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}
.nav__hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* --- Mobile Nav --- */
@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: var(--space-lg);
    gap: var(--space-md);
    transform: translateY(-120%);
    transition: transform var(--transition-base);
  }
  .nav__links.open { transform: translateY(0); }
  .nav__hamburger { display: flex; }
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
  z-index: 1;
}

.page {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

/* --- Hero Section --- */
.hero {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  border-radius: 100px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.hero__badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.hero h1 span {
  background: linear-gradient(135deg, var(--accent), #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

/* --- Tool Cards Grid --- */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.tool-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0, 229, 191, 0.2);
  transform: translateY(-2px);
  opacity: 1;
}
.tool-card:hover::before { opacity: 1; }

.tool-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
}

.tool-card__icon--teal   { background: var(--accent-dim); }
.tool-card__icon--red    { background: var(--danger-dim); }
.tool-card__icon--yellow { background: var(--warning-dim); }
.tool-card__icon--blue   { background: var(--info-dim); }
.tool-card__icon--green  { background: var(--success-dim); }

.tool-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: var(--space-xs);
}

.tool-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- Tool Page Layout --- */
.tool-page {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}

.tool-page h1 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: var(--space-sm);
}

.tool-page__desc {
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  font-size: 1.05rem;
}

/* --- Input Areas --- */
.input-group {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.input-group input,
.input-group textarea {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
  outline: none;
}

.input-group input:focus,
.input-group textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.input-group input::placeholder {
  color: var(--text-muted);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent);
  color: var(--bg-primary);
}
.btn--primary:hover {
  background: #00ccaa;
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn--secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn--secondary:hover {
  border-color: var(--accent);
}

.btn--sm {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.85rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --- Result Cards --- */
.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.result-card--danger {
  border-color: rgba(239, 68, 68, 0.3);
  background: linear-gradient(135deg, var(--bg-card), rgba(239, 68, 68, 0.05));
}

.result-card--success {
  border-color: rgba(34, 197, 94, 0.3);
  background: linear-gradient(135deg, var(--bg-card), rgba(34, 197, 94, 0.05));
}

.result-card--warning {
  border-color: rgba(245, 158, 11, 0.3);
  background: linear-gradient(135deg, var(--bg-card), rgba(245, 158, 11, 0.05));
}

.result-card h3 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

/* --- Data Table --- */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table td {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.data-table td:first-child {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  white-space: nowrap;
  padding-right: var(--space-lg);
  width: 40%;
}

.data-table td:last-child {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  word-break: break-all;
}

/* --- Status Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge--danger  { background: var(--danger-dim); color: var(--danger); }
.badge--success { background: var(--success-dim); color: var(--success); }
.badge--warning { background: var(--warning-dim); color: var(--warning); }
.badge--info    { background: var(--info-dim); color: var(--info); }

/* --- Loading Spinner --- */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-2xl);
  color: var(--text-secondary);
}

/* --- Uniqueness Meter --- */
.meter {
  width: 100%;
  height: 8px;
  background: var(--bg-input);
  border-radius: 100px;
  overflow: hidden;
  margin: var(--space-md) 0;
}

.meter__fill {
  height: 100%;
  border-radius: 100px;
  transition: width 1s var(--ease-out), background 0.5s;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer a {
  color: var(--text-secondary);
}

.footer__links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
  list-style: none;
}

/* --- Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.text-accent  { color: var(--accent); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-success { color: var(--success); }
.text-muted   { color: var(--text-muted); }
.mono         { font-family: var(--font-mono); }
.mt-sm        { margin-top: var(--space-sm); }
.mt-md        { margin-top: var(--space-md); }
.mt-lg        { margin-top: var(--space-lg); }
.mb-md        { margin-bottom: var(--space-md); }
.mb-lg        { margin-bottom: var(--space-lg); }
.hidden       { display: none !important; }

/* --- Responsive --- */
@media (max-width: 480px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }
  .input-group {
    flex-direction: column;
  }
  .tool-page {
    padding: var(--space-lg) var(--space-md);
  }
}