/* Section: CSS Variables — Light default, Dark optional */
:root {
  color-scheme: light;
  --bg-primary: #f4f7fc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-glass: rgba(255, 255, 255, 0.82);
  --bg-elevated: rgba(248, 250, 252, 0.95);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border: rgba(15, 23, 42, 0.08);
  --accent: #4f46e5;
  --accent-2: #7c3aed;
  --accent-glow: rgba(79, 70, 229, 0.18);
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #d97706;
  --header-h: 60px;
  --sidebar-w: 252px;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.1);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --content-max: 1280px;
  --mesh-1: rgba(79, 70, 229, 0.08);
  --mesh-2: rgba(124, 58, 237, 0.06);
  --mesh-3: rgba(236, 72, 153, 0.04);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg-primary: #070b14;
  --bg-secondary: #0f172a;
  --bg-card: rgba(17, 24, 39, 0.82);
  --bg-glass: rgba(10, 15, 28, 0.88);
  --bg-elevated: rgba(30, 41, 59, 0.55);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: rgba(255, 255, 255, 0.07);
  --accent: #6366f1;
  --accent-2: #8b5cf6;
  --accent-glow: rgba(99, 102, 241, 0.35);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.45);
  --mesh-1: rgba(99, 102, 241, 0.15);
  --mesh-2: rgba(139, 92, 246, 0.1);
  --mesh-3: rgba(236, 72, 153, 0.08);
}

[data-theme="light"] {
  color-scheme: light;
}

/* Section: Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; transition: background-color 0.3s ease, color 0.3s ease; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  background-image:
    radial-gradient(ellipse 90% 60% at 50% -10%, var(--mesh-1), transparent 70%),
    radial-gradient(ellipse 50% 40% at 100% 0%, var(--mesh-2), transparent 60%),
    radial-gradient(ellipse 40% 30% at 0% 20%, var(--mesh-3), transparent 55%);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-2); }
img { max-width: 100%; height: auto; }
button { font-family: inherit; cursor: pointer; }

/* Section: Layout */
.app-wrapper { display: flex; flex-direction: column; min-height: 100vh; }
.main-wrapper { flex: 1; margin-left: var(--sidebar-w); padding-top: var(--header-h); transition: margin var(--transition); }
.main-content { max-width: var(--content-max); margin: 0 auto; padding: 16px 20px 28px; }

/* Section: Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-h);
  background: var(--bg-glass);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(255,255,255,0.6) inset;
}
[data-theme="dark"] .site-header { box-shadow: none; }
.header-inner {
  display: flex; align-items: center; gap: 16px;
  max-width: 1600px; margin: 0 auto; padding: 0 20px; height: 100%;
}
.sidebar-toggle {
  display: none; background: none; border: none; color: var(--text-primary);
  font-size: 1.2rem; padding: 8px; border-radius: 8px;
}
.sidebar-toggle:hover { background: var(--border); }
.header-logo { display: flex; align-items: center; gap: 10px; color: var(--text-primary); font-weight: 700; font-size: 1.1rem; }
.logo-icon { color: var(--accent); font-size: 1.4rem; }
.header-search {
  flex: 1; max-width: 480px; position: relative; display: flex; align-items: center;
}
.search-icon { position: absolute; left: 14px; color: var(--text-muted); }
.search-input {
  width: 100%; padding: 10px 80px 10px 40px;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: 12px; color: var(--text-primary); font-size: 0.9rem;
  transition: border var(--transition), box-shadow var(--transition);
}
.search-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.search-kbd {
  position: absolute; right: 10px; font-size: 0.7rem; padding: 2px 6px;
  background: var(--border); border-radius: 4px; color: var(--text-muted);
}
.header-nav { display: flex; gap: 8px; }
.nav-link { padding: 8px 14px; border-radius: 8px; color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; }
.nav-link:hover, .nav-link.active { color: var(--text-primary); background: var(--border); }
.header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.theme-toggle {
  background: var(--border); border: none; color: var(--text-primary);
  width: 40px; height: 40px; border-radius: 10px; font-size: 1rem;
  transition: transform var(--transition);
}
.theme-toggle:hover { transform: scale(1.05); }

/* Section: Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: 10px; font-weight: 600; font-size: 0.9rem;
  border: none; transition: all var(--transition); cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; box-shadow: 0 4px 15px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px var(--accent-glow); }
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--border); color: var(--text-primary); }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-icon { width: 40px; height: 40px; padding: 0; justify-content: center; background: var(--border); color: var(--text-primary); }
.btn-group { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

/* Section: Sidebar */
.main-sidebar {
  position: fixed; top: var(--header-h); left: 0; bottom: 0;
  width: var(--sidebar-w); z-index: 900;
  background: var(--bg-glass); backdrop-filter: blur(20px);
  border-right: 1px solid var(--border);
  overflow: hidden; transition: transform var(--transition);
}
.sidebar-inner { display: flex; flex-direction: column; height: 100%; overflow-y: auto; }
.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px; border-bottom: 1px solid var(--border);
}
.sidebar-close-btn { display: none; background: none; border: none; color: var(--text-muted); font-size: 1.1rem; }
.sidebar-section { padding: 12px 16px; }
.sidebar-section-title {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-muted); margin-bottom: 8px; font-weight: 600;
}
.sidebar-menu, .sidebar-categories, .sidebar-trending-list { list-style: none; }
.sidebar-link {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border-radius: 10px; color: var(--text-secondary); font-size: 0.88rem;
  transition: all var(--transition);
}
.sidebar-link:hover, .sidebar-item.active .sidebar-link { background: var(--border); color: var(--text-primary); }
.sidebar-badge {
  margin-left: auto; font-size: 0.7rem; padding: 2px 8px;
  background: var(--accent); color: #fff; border-radius: 20px;
}
.sidebar-category-btn {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 10px 12px; background: none; border: none;
  color: var(--text-secondary); border-radius: 10px; font-size: 0.88rem;
  transition: all var(--transition);
}
.sidebar-category-btn:hover { background: var(--border); color: var(--text-primary); }
.cat-count { margin-left: auto; font-size: 0.75rem; color: var(--text-muted); }
.cat-arrow { font-size: 0.7rem; transition: transform var(--transition); }
.sidebar-category-item.open .cat-arrow { transform: rotate(180deg); }
.sidebar-tool-list { list-style: none; padding-left: 20px; margin-top: 4px; }
.sidebar-tool-link {
  display: block; padding: 6px 12px; font-size: 0.82rem;
  color: var(--text-muted); border-radius: 6px;
}
.sidebar-tool-link:hover { color: var(--accent); background: var(--border); }
.sidebar-footer { margin-top: auto; padding: 16px; border-top: 1px solid var(--border); }
.sidebar-footer-links { display: flex; gap: 12px; flex-wrap: wrap; font-size: 0.78rem; }
.sidebar-version { font-size: 0.72rem; color: var(--text-muted); margin-top: 8px; }
.sidebar-overlay { display: none; }

/* Section: Cards */
.card-glass {
  background: var(--bg-card); backdrop-filter: blur(16px);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; margin-bottom: 16px; box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card-glass:hover { border-color: rgba(99, 102, 241, 0.25); box-shadow: var(--shadow-lg); }

/* Section: Hero */
.hero {
  text-align: center; padding: 36px 20px 44px;
  background: radial-gradient(ellipse at 50% 0%, var(--accent-glow), transparent 65%);
  position: relative; overflow: hidden; border-radius: var(--radius);
  border: 1px solid var(--border); margin-bottom: 20px;
}
.hero-mesh {
  position: absolute; inset: 0; opacity: 0.4;
  background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(139,92,246,0.1), rgba(236,72,153,0.08));
  animation: meshMove 15s ease infinite;
}
@keyframes meshMove { 0%, 100% { transform: translate(0,0); } 50% { transform: translate(20px, -10px); } }
.hero-content { position: relative; z-index: 1; }
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 12px;
  letter-spacing: -0.03em;
  color: #0f172a;
  background: none;
  -webkit-text-fill-color: #0f172a;
}
.hero h1 .line-accent {
  display: block;
  margin-top: 4px;
  color: #4f46e5;
  background: none;
  -webkit-text-fill-color: #4f46e5;
}
:root .hero h1,
[data-theme="light"] .hero h1 {
  color: #0f172a;
  -webkit-text-fill-color: #0f172a;
}
:root .hero h1 .line-accent,
[data-theme="light"] .hero h1 .line-accent {
  color: #4f46e5;
  -webkit-text-fill-color: #4f46e5;
}
[data-theme="dark"] .hero h1 {
  color: #f8fafc;
  -webkit-text-fill-color: #f8fafc;
}
[data-theme="dark"] .hero h1 .line-accent {
  background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 50%, #a5b4fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #e0e7ff;
}
.hero p {
  font-size: 1.02rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 22px;
  line-height: 1.65;
  font-weight: 500;
}
.hero-stats { display: flex; justify-content: center; gap: 28px; flex-wrap: wrap; margin-top: 24px; }
.hero-stat strong { display: block; font-size: 1.5rem; font-weight: 800; color: var(--accent); }
.hero-stat span { font-size: 0.78rem; color: var(--text-muted); }
.hero-cta { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.hero-announcement {
  display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 8px 16px; border-radius: 999px; font-size: 0.84rem;
  background: rgba(79, 70, 229, 0.08); border: 1px solid rgba(79, 70, 229, 0.18);
  margin-bottom: 18px; color: #334155; font-weight: 500;
}
[data-theme="dark"] .hero-announcement { color: var(--text-secondary); background: rgba(99, 102, 241, 0.12); border-color: rgba(99, 102, 241, 0.25); }
.hero-announcement a { color: var(--accent); font-weight: 600; }
.hero-announcement .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; gap: 12px; flex-wrap: wrap; }
.section-head h2 { font-size: 1.15rem; font-weight: 700; }
.section-head a { font-size: 0.82rem; color: var(--accent); }

/* Section: Tools Grid */
.tools-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px; margin-bottom: 24px;
}
.tool-card {
  display: block; padding: 14px 16px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  transition: all var(--transition); color: var(--text-primary);
  position: relative; overflow: hidden;
}
.tool-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--accent-glow), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.tool-card:hover { transform: translateY(-5px); border-color: var(--accent); box-shadow: 0 12px 32px var(--accent-glow); }
.tool-card:hover::before { opacity: 1; }
.tool-card-icon { font-size: 1.35rem; margin-bottom: 8px; position: relative; }
.tool-card h3 { font-size: 0.9rem; margin-bottom: 4px; position: relative; font-weight: 600; }
.tool-card p { font-size: 0.78rem; color: var(--text-secondary); position: relative; line-height: 1.4;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.badge { font-size: 0.65rem; padding: 2px 8px; border-radius: 20px; font-weight: 600; }
.badge-new { background: var(--success); color: #fff; }
.badge-pro { background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; }

/* Section: Tool Page */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 20px; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-secondary); }
.tool-header { display: flex; gap: 20px; align-items: flex-start; margin-bottom: 24px; flex-wrap: wrap; }
.tool-header-icon {
  width: 64px; height: 64px; border-radius: 16px;
  background: linear-gradient(135deg, var(--tool-color, var(--accent)), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; color: #fff; flex-shrink: 0;
}
.tool-title { font-size: 1.8rem; font-weight: 700; margin-bottom: 6px; }
.tool-tagline { color: var(--text-secondary); }
.tool-meta { display: flex; align-items: center; gap: 16px; margin-top: 10px; font-size: 0.85rem; color: var(--text-muted); }
.star-rating { color: #fbbf24; }
.pro-badge { background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; padding: 2px 10px; border-radius: 20px; font-size: 0.7rem; font-weight: 700; }
.tool-actions { margin-left: auto; display: flex; gap: 8px; }
.tool-workspace { min-height: 200px; }
.tool-form .form-group { margin-bottom: 16px; }
.tool-form-intro { margin-bottom: 18px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.tool-form-category { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; color: var(--accent); margin-bottom: 6px; text-transform: uppercase; }
.tool-form-title { font-size: 1.15rem; font-weight: 700; color: var(--text-primary); margin-bottom: 6px; }
.tool-form label { display: block; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 6px; font-weight: 500; }
.form-control {
  width: 100%; padding: 12px 14px; background: var(--bg-secondary);
  border: 1px solid var(--border); border-radius: 10px;
  color: var(--text-primary); font-size: 0.95rem;
  transition: border var(--transition), box-shadow var(--transition);
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
textarea.form-control { resize: vertical; min-height: 120px; font-family: 'Consolas', monospace; }
.tool-note { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 16px; }
.result-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; }
.result-big { font-size: 1.8rem; font-weight: 700; color: var(--accent); }
.mono { font-family: 'Consolas', monospace; word-break: break-all; }
.error-text { color: var(--danger); }
.success-text { color: var(--success); }
.tool-result-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.result-actions { display: flex; gap: 8px; }
.img-preview, .result-image { max-width: 100%; border-radius: 10px; margin: 12px 0; }
.qr-canvas { margin: 16px 0; }
.timer-display { font-size: 2.5rem; font-weight: 700; text-align: center; padding: 24px; font-family: monospace; }

/* Section: Category Hero */
.category-hero {
  text-align: center; padding: 48px 24px; border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(99,102,241,0.15), transparent);
  border: 1px solid var(--border); margin-bottom: 32px;
}
.category-hero-icon { font-size: 3rem; color: var(--cat-color, var(--accent)); margin-bottom: 16px; }
.category-count { display: inline-block; margin-top: 12px; padding: 4px 14px; background: var(--border); border-radius: 20px; font-size: 0.85rem; }

/* Section: Skeleton */
.skeleton { background: linear-gradient(90deg, var(--border) 25%, rgba(255,255,255,0.05) 50%, var(--border) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 8px; }
.skeleton-block { height: 120px; margin-bottom: 12px; }
.skeleton-line { height: 16px; margin-bottom: 8px; }
.skeleton-line.short { width: 60%; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Section: Animations */
.animate-in { animation: fadeInUp 0.5s ease both; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* Section: Footer */
.site-footer { background: var(--bg-secondary); border-top: 1px solid var(--border); padding: 48px 24px 24px; margin-left: var(--sidebar-w); }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 32px; margin-bottom: 32px; }
.footer-logo { font-weight: 700; font-size: 1.1rem; margin-bottom: 8px; }
.footer-brand p { font-size: 0.85rem; color: var(--text-muted); }
.footer-links h4 { font-size: 0.85rem; margin-bottom: 12px; color: var(--text-secondary); }
.footer-links a { display: block; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 8px; }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 24px; border-top: 1px solid var(--border); font-size: 0.8rem; color: var(--text-muted); flex-wrap: wrap; gap: 8px; }

/* Section: Toast */
.toast-container { position: fixed; top: 80px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 14px 20px; border-radius: 10px; background: var(--bg-card);
  border: 1px solid var(--border); box-shadow: var(--shadow);
  animation: slideIn 0.3s ease; font-size: 0.9rem;
}
.toast-success { border-color: var(--success); }
.toast-error { border-color: var(--danger); }
.toast.hide { animation: slideOut 0.3s ease forwards; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideOut { to { transform: translateX(100%); opacity: 0; } }

/* Section: Auth */
.auth-page { min-height: calc(100vh - var(--header-h)); display: flex; align-items: center; justify-content: center; padding: 40px 24px; }
.auth-card { width: 100%; max-width: 440px; }
.auth-card h1 { font-size: 1.6rem; margin-bottom: 8px; }
.auth-card .sub { color: var(--text-muted); margin-bottom: 24px; font-size: 0.9rem; }
.auth-divider { text-align: center; margin: 20px 0; color: var(--text-muted); font-size: 0.85rem; position: relative; }
.auth-divider::before, .auth-divider::after { content: ''; position: absolute; top: 50%; width: 40%; height: 1px; background: var(--border); }
.auth-divider::before { left: 0; }
.auth-divider::after { right: 0; }
.google-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 12px; background: #fff; color: #333;
  border: 1px solid #ddd; border-radius: 10px; font-weight: 500;
  transition: box-shadow var(--transition);
}
.google-btn:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.15); }

/* Section: User Dropdown */
.user-dropdown { position: relative; }
.user-dropdown-btn { display: flex; align-items: center; gap: 8px; background: none; border: none; cursor: pointer; }
.user-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--border); }
.plan-badge { font-size: 0.65rem; padding: 2px 6px; border-radius: 4px; font-weight: 700; }
.plan-basic { background: var(--border); color: var(--text-secondary); }
.plan-pro { background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; }
.dropdown-menu {
  position: absolute; top: 100%; right: 0; margin-top: 8px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; min-width: 200px; box-shadow: var(--shadow);
  padding: 8px; z-index: 100;
}
.dropdown-menu a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 8px; color: var(--text-secondary); font-size: 0.88rem; }
.dropdown-menu a:hover { background: var(--border); color: var(--text-primary); }
.dropdown-menu hr { border: none; border-top: 1px solid var(--border); margin: 4px 0; }

/* Section: Back to top */
.back-to-top {
  position: fixed; bottom: 24px; right: 24px; z-index: 800;
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; border: none; box-shadow: var(--shadow);
  transition: transform var(--transition);
}
.back-to-top:hover { transform: translateY(-4px); }

/* Section: Accordion */
.accordion-item { border-bottom: 1px solid var(--border); }
.accordion-trigger {
  width: 100%; text-align: left; padding: 16px 0; background: none; border: none;
  color: var(--text-primary); font-weight: 600; font-size: 0.95rem; cursor: pointer;
}
.accordion-panel { padding-bottom: 16px; color: var(--text-secondary); font-size: 0.9rem; }

/* Section: Pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.pricing-card { text-align: center; padding: 32px; }
.pricing-card.featured { border-color: var(--accent); box-shadow: 0 0 40px var(--accent-glow); }
.pricing-price { font-size: 2.5rem; font-weight: 800; margin: 16px 0; }
.pricing-features { list-style: none; text-align: left; margin: 24px 0; }
.pricing-features li { padding: 8px 0; font-size: 0.9rem; color: var(--text-secondary); }
.pricing-features li i { color: var(--success); margin-right: 8px; }

/* Section: Checkout */
.checkout-page { max-width: 1100px; margin: 0 auto; }
.checkout-hero { text-align: center; padding: 40px 32px; margin-bottom: 24px; background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(139,92,246,0.08)); }
.checkout-hero__badge { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-weight: 600; margin-bottom: 12px; }
.checkout-hero h1 { font-size: 2rem; margin-bottom: 8px; }
.checkout-hero__sub { color: var(--text-secondary); max-width: 520px; margin: 0 auto 20px; }
.checkout-cycle-toggle { display: inline-flex; gap: 8px; background: var(--bg-elevated); padding: 6px; border-radius: 12px; margin-bottom: 16px; }
.checkout-cycle-btn { padding: 10px 20px; border-radius: 8px; color: var(--text-secondary); text-decoration: none; font-weight: 600; }
.checkout-cycle-btn.is-active { background: var(--accent); color: #fff; }
.checkout-price__inr { font-size: 2.5rem; font-weight: 800; color: var(--text-primary); }
.checkout-price__cycle { color: var(--text-muted); }
.checkout-layout { display: grid; grid-template-columns: 1fr 320px; gap: 24px; margin-bottom: 32px; }
.checkout-method-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; margin: 20px 0; }
.checkout-method-card { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 20px 12px; border: 2px solid var(--border); border-radius: 12px; background: var(--bg-elevated); cursor: pointer; transition: all 0.2s; color: inherit; }
.checkout-method-card:hover, .checkout-method-card.is-selected { border-color: var(--method-color, var(--accent)); box-shadow: 0 0 20px rgba(99,102,241,0.2); }
.checkout-method-card__icon { font-size: 1.5rem; color: var(--method-color, var(--accent)); }
.checkout-method-card__name { font-weight: 600; font-size: 0.9rem; }
.checkout-method-card__type { font-size: 0.75rem; color: var(--text-muted); }
.checkout-pay-btn { width: 100%; margin-top: 8px; }
.checkout-secure { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 0.85rem; color: var(--text-muted); }
.checkout-active { display: flex; align-items: center; gap: 16px; padding: 24px; margin-bottom: 24px; }
.checkout-active i { font-size: 2rem; color: var(--success); }
.checkout-flash { padding: 14px 18px; border-radius: 10px; margin-bottom: 20px; }
.checkout-flash--success { background: rgba(16,185,129,0.15); color: var(--success); }
.checkout-flash--error { background: rgba(239,68,68,0.15); color: #ef4444; }
.checkout-flash--info { background: rgba(99,102,241,0.15); color: var(--accent); }
.checkout-history { margin-top: 32px; }
.checkout-modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.65); z-index: 9999; display: flex; align-items: center; justify-content: center; padding: 20px; }
.checkout-modal { position: relative; max-width: 420px; width: 100%; padding: 28px; text-align: center; }
.checkout-modal-close { position: absolute; top: 12px; right: 16px; background: none; border: none; font-size: 1.5rem; color: var(--text-muted); cursor: pointer; }
.checkout-modal-amount { font-size: 1.1rem; margin: 12px 0; }
.checkout-qr-wrap { margin: 16px auto; padding: 12px; background: #fff; border-radius: 12px; display: inline-block; }
.checkout-qr-wrap img { display: block; border-radius: 8px; }
.checkout-modal-timer { color: var(--warning); font-weight: 600; }
.checkout-modal-hint { font-size: 0.85rem; color: var(--text-muted); margin: 12px 0; }
.checkout-modal-actions { display: flex; gap: 10px; justify-content: center; margin-top: 16px; flex-wrap: wrap; }
.checkout-instructions { text-align: left; background: var(--bg-elevated); padding: 12px; border-radius: 8px; white-space: pre-wrap; font-size: 0.85rem; margin: 12px 0; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.data-table th, .data-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.table-wrap { overflow-x: auto; }
@media (max-width: 768px) { .checkout-layout { grid-template-columns: 1fr; } }

/* Section: Responsive */
@media (max-width: 1024px) {
  .main-sidebar { transform: translateX(-100%); }
  .main-wrapper, .site-footer { margin-left: 0; }
  body.sidebar-open .main-sidebar { transform: translateX(0); }
  body.sidebar-open .sidebar-overlay { display: block; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 899; }
  .sidebar-toggle { display: block; }
  .sidebar-close-btn { display: block; }
  .header-nav { display: none; }
  .main-content { padding-bottom: 72px; }
  .mobile-bottom-nav { display: flex; }
}
@media (max-width: 640px) {
  .hero h1 { font-size: 1.65rem; }
  .tools-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .tool-card { padding: 12px; }
  .tool-header { flex-direction: column; }
  .tool-actions { margin-left: 0; }
  .search-kbd { display: none; }
  .header-logo .logo-text { display: none; }
  .btn-upgrade-pro span { display: none; }
}

.mobile-bottom-nav {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 1001;
  height: 58px; background: var(--bg-glass); backdrop-filter: blur(20px);
  border-top: 1px solid var(--border); justify-content: space-around; align-items: center;
}
.bottom-nav-item {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  color: var(--text-muted); font-size: 0.65rem; padding: 6px 10px; border-radius: 8px;
  background: none; border: none; text-decoration: none; min-width: 52px;
}
.bottom-nav-item i { font-size: 1.1rem; }
.bottom-nav-item.active, .bottom-nav-item:hover { color: var(--accent); }
.btn-upgrade-pro {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 999px; font-size: 0.8rem; font-weight: 600;
  background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; border: none;
  text-decoration: none; transition: transform var(--transition);
}
.btn-upgrade-pro:hover { transform: translateY(-1px); color: #fff; }
.btn-upi-pay { background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.category-grid-compact { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
.category-pill {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm);
  transition: all var(--transition); color: var(--text-primary);
  box-shadow: var(--shadow);
}
.category-pill:hover { border-color: var(--cat-color, var(--accent)); transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.category-pill i { font-size: 1.1rem; color: var(--cat-color, var(--accent)); }
.category-pill strong { display: block; font-size: 0.85rem; }
.category-pill small { font-size: 0.72rem; color: var(--text-muted); }

/* Section: Print */
@media print {
  .site-header, .main-sidebar, .site-footer, .back-to-top { display: none; }
  .main-wrapper { margin: 0; padding: 0; }
}