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

:root {
  --bg-base: #0a0a0a;
  --bg-card: #111111;
  --bg-hover: #1a1a1a;
  --border: #222222;
  --border-active: #3b82f6;
  --text-primary: #ffffff;
  --text-secondary: #aaaaaa;
  --text-muted: #555555;
  --accent-blue: #3b82f6;
  --accent-green: #22c55e;
  --accent-red: #ef4444;
  --accent-yellow: #f59e0b;
  --accent-gold: #d97706;
  
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --sidebar-width: 220px;
  --header-height: 56px;
  --content-padding: 32px;
  --card-gap: 16px;
  --section-gap: 48px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  background-color: var(--bg-base);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Global Header */
.global-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background-color: var(--bg-base);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 1000;
  width: 100%;
}

.header-left {
  display: flex;
  align-items: center;
}

.header-logo {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-tagline {
  color: var(--text-secondary);
  font-size: 14px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
}

/* App Layout */
.app-layout {
  display: flex;
  flex: 1;
}

/* Sidebar */
.global-sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-base);
  border-right: 1px solid var(--border);
  position: fixed;
  top: var(--header-height);
  bottom: 0;
  left: 0;
  overflow-y: auto;
  z-index: 900;
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

.nav-section {
  padding: 24px 0 0 0;
}

.nav-category {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0 24px;
  margin-bottom: 8px;
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 24px;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 14px;
  border-left: 2px solid transparent;
  transition: all 0.2s;
}

.nav-item-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-item a:hover {
  color: var(--accent-blue);
  background-color: var(--bg-hover);
}

.nav-item a.active {
  color: var(--accent-blue);
  border-left: 2px solid var(--accent-blue);
  background-color: var(--bg-hover);
}

.nav-item a.active .nav-icon {
  color: var(--accent-blue);
}

.nav-icon {
  width: 16px;
  text-align: center;
}

.sidebar-ad {
  margin-top: auto;
  padding: 24px;
  border-top: 1px solid var(--border);
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: var(--content-padding);
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - var(--header-height));
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  width: 100%;
}

/* Section Formatting */
.section-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 20px 0;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
  display: inline-block;
  border-bottom-color: var(--accent-blue);
}

.tool-section {
  margin-bottom: var(--section-gap);
}

/* Tool Cards */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--card-gap);
}

.tool-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}

.tool-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-2px);
}

.tool-icon-large {
  font-size: 28px;
  text-align: center;
  margin-bottom: 16px;
}

.tool-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 4px 0;
  text-align: center;
}

.tool-desc {
  font-size: 12px;
  color: #888888;
  margin: 0 0 16px 0;
  text-align: center;
  line-height: 1.4;
  flex: 1;
}

.btn-open {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue);
  border: 1px solid var(--accent-blue);
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
}

.tool-card:hover .btn-open {
  background-color: var(--accent-blue);
  color: #fff;
}

/* Badges */
.badge {
  position: absolute;
  top: -8px;
  right: -8px;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 4px;
}

.badge-popular {
  background-color: var(--accent-gold);
  color: #000;
}

.badge-live {
  background-color: var(--bg-hover);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.badge-live::before {
  content: '';
  width: 6px;
  height: 6px;
  background-color: var(--accent-green);
  border-radius: 50%;
  display: inline-block;
}

.badge-soon {
  background-color: var(--bg-hover);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.badge-soon::before {
  content: '';
  width: 6px;
  height: 6px;
  background-color: var(--text-muted);
  border-radius: 50%;
  display: inline-block;
}

.badge-sidebar {
  font-size: 10px;
  color: var(--accent-green);
}

/* Tool Inner View Headers */
.tool-back-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  transition: color 0.2s;
}
.tool-back-link:hover {
  color: var(--text-primary);
}

.tool-header-inner {
  margin-bottom: 32px;
}
.tool-header-inner h1 {
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 8px 0;
}
.tool-header-inner p {
  color: var(--text-secondary);
  margin: 0;
}

.about-tool-section {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.about-tool-section h3 {
  font-size: 16px;
  margin: 0 0 12px 0;
}
.about-tool-section p {
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

/* Scrollbars */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Responsive */
@media (max-width: 768px) {
  .global-sidebar {
    transform: translateX(-100%);
  }
  
  .global-sidebar.open {
    transform: translateX(0);
    box-shadow: 5px 0 25px rgba(0,0,0,0.5);
  }

  .main-content {
    margin-left: 0;
    padding: 24px 16px;
  }

  .mobile-menu-btn {
    display: block;
  }
  
  .header-tagline {
    display: none;
  }

  .tool-grid {
    grid-template-columns: repeat(auto-fill, minmax(100%, 1fr));
  }
}