/* ============================================
   DevTools Hub — Unified Portal Styles
   ============================================ */

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

:root {
  --bg-primary: #0f0f0f;
  --bg-secondary: #1a1a1a;
  --bg-card: #1e1e1e;
  --bg-card-hover: #252525;
  --accent: #7c5ff0;
  --accent-light: #9b82f3;
  --accent-glow: rgba(124, 95, 240, 0.15);
  --text-primary: #e8e8e8;
  --text-secondary: #999;
  --text-muted: #666;
  --border: #2a2a2a;
  --border-hover: #3a3a3a;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
  --transition: 0.2s ease;
  --max-width: 1100px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-light);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent);
}

/* ============================================
   Header
   ============================================ */

.header {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 48px 24px 0;
  text-align: center;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 2rem;
}

.logo h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lang-toggle {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  color: var(--text-secondary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: border-color var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
}

.lang-toggle:hover {
  border-color: var(--accent);
}

.lang-option {
  transition: color var(--transition);
}

.lang-option.active {
  color: var(--accent-light);
  font-weight: 600;
}

.lang-divider {
  color: var(--text-muted);
}

.header-desc {
  margin-top: 12px;
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   Privacy Banner
   ============================================ */

.privacy-banner {
  max-width: var(--max-width);
  width: 100%;
  margin: 24px auto 0;
  padding: 0 24px;
}

.privacy-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent-glow);
  border: 1px solid rgba(124, 95, 240, 0.25);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  max-width: calc(var(--max-width) - 48px);
  font-size: 0.9rem;
  color: var(--accent-light);
  text-align: center;
}

.privacy-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

/* ============================================
   Search
   ============================================ */

.search-container {
  max-width: var(--max-width);
  width: 100%;
  margin: 32px auto 0;
  padding: 0 24px;
}

.search-wrapper {
  position: relative;
  max-width: 480px;
  margin: 0 auto;
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  pointer-events: none;
}

#searchInput {
  width: 100%;
  padding: 14px 16px 14px 48px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

#searchInput::placeholder {
  color: var(--text-muted);
}

#searchInput:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ============================================
   Tools Grid
   ============================================ */

.tools-grid {
  max-width: var(--max-width);
  width: 100%;
  margin: 32px auto 0;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  flex: 1;
}

/* ============================================
   Tool Card
   ============================================ */

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
  cursor: pointer;
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-hover), 0 0 0 1px var(--accent-glow);
  background: var(--bg-card-hover);
  color: inherit;
}

.tool-card-icon {
  font-size: 2rem;
  line-height: 1;
}

.tool-card-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.tool-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.tool-card-arrow {
  margin-top: auto;
  color: var(--text-muted);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color var(--transition);
}

.tool-card:hover .tool-card-arrow {
  color: var(--accent-light);
}

/* ============================================
   No Results
   ============================================ */

.no-results {
  text-align: center;
  padding: 48px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.no-results[hidden] {
  display: none;
}

.no-results-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 12px;
}

.no-results p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 48px 24px 32px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer p {
  margin-bottom: 8px;
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

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

.footer-links a:hover {
  color: var(--accent-light);
}

.footer-divider {
  color: var(--text-muted);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .logo h1 {
    font-size: 1.5rem;
  }

  .logo-icon {
    font-size: 1.5rem;
  }

  .header {
    padding-top: 32px;
  }

  .header-desc {
    font-size: 0.95rem;
  }

  .tool-card {
    padding: 20px;
  }
}

@media (max-width: 520px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }

  .header-top {
    flex-direction: column;
    gap: 12px;
  }

  .lang-toggle {
    position: static;
    transform: none;
  }

  .privacy-banner {
    font-size: 0.82rem;
  }
}