@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ======================== */
/* LIGHT THEME (DEFAULT)    */
/* ======================== */
:root, [data-theme="light"] {
  --bg: #F4F5F6;
  --surface: #FFFFFF;
  --surface2: #F8F9FA;
  --surface3: #E5E7EB;
  --border: #D1D5DB;
  --border-light: #E5E7EB;
  --text: #1B365D;
  --text-secondary: #4B5563;
  --text-dim: #6B7280;
  --accent: #1B365D;
  --accent-light: #2B4A7D;
  --accent-dark: #E87722;
  --accent-bg: rgba(27,54,93,0.06);
  --accent-border: rgba(27,54,93,0.15);
  --gold: #E87722;
  --gold-bg: rgba(232,119,34,0.07);
  --gold-border: rgba(232,119,34,0.18);
  --critical: #DC2626;
  --critical-bg: rgba(220,38,38,0.06);
  --critical-border: rgba(220,38,38,0.14);
  --high: #B45309;
  --high-bg: rgba(180,83,9,0.06);
  --medium: #92780C;
  --low: #16A34A;
  --low-bg: rgba(22,163,74,0.06);
  --nav-bg: rgba(240,242,245,0.95);
  --shadow: 0 4px 24px rgba(27,54,93,0.08);
  --card-hover: rgba(27,54,93,0.02);
  --separator: rgba(27,54,93,0.06);
  --glow-1: rgba(27,54,93,0.08);
  --glow-2: rgba(232,119,34,0.06);
  --toggle-bg: #E5E7EB;
  --toggle-border: #D1D5DB;
  --code-bg: #F3F4F6;
  --code-border: #D1D5DB;
}

/* ======================== */
/* DARK THEME               */
/* ======================== */
[data-theme="dark"] {
  --bg: #0F1419;
  --surface: #1A2332;
  --surface2: #1E293B;
  --surface3: #263549;
  --border: #334155;
  --border-light: #3D4F65;
  --text: #E8ECF1;
  --text-secondary: #94A3B8;
  --text-dim: #64748B;
  --accent: #5C92CC;
  --accent-light: #7BA8D4;
  --accent-dark: #FF9F43;
  --accent-bg: rgba(74,144,217,0.08);
  --accent-border: rgba(74,144,217,0.18);
  --gold: #F08A2E;
  --gold-bg: rgba(255,159,67,0.08);
  --gold-border: rgba(255,159,67,0.18);
  --critical: #EF4444;
  --critical-bg: rgba(239,68,68,0.07);
  --critical-border: rgba(239,68,68,0.14);
  --high: #F59E0B;
  --high-bg: rgba(245,158,11,0.07);
  --medium: #EAB308;
  --low: #22C55E;
  --low-bg: rgba(34,197,94,0.07);
  --nav-bg: rgba(15,20,25,0.92);
  --shadow: 0 4px 24px rgba(0,0,0,0.35);
  --card-hover: rgba(255,255,255,0.02);
  --separator: rgba(255,255,255,0.04);
  --glow-1: rgba(74,144,217,0.06);
  --glow-2: rgba(255,159,67,0.04);
  --toggle-bg: var(--surface3);
  --toggle-border: var(--border);
  --code-bg: #0D1520;
  --code-border: #1E293B;
}

/* ======================== */
/* BASE                     */
/* ======================== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.5s ease, color 0.4s ease;
}

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* Dot grid overlay */
.dot-grid {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.08;
}
[data-theme="dark"] .dot-grid { opacity: 0.04; }

/* ======================== */
/* SITE NAVIGATION          */
/* ======================== */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.5s ease, border-color 0.5s ease;
}

.nav-brand {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.3px;
  transition: color 0.3s;
  white-space: nowrap;
}
.nav-brand:hover { color: var(--accent-light); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links > a {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.2s;
  white-space: nowrap;
}
.nav-links > a:hover {
  color: var(--text);
  background: var(--accent-bg);
}
.nav-links > a.active {
  color: var(--accent);
  background: var(--accent-bg);
  border-bottom: 2px solid var(--accent);
}

.nav-toggle {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--toggle-bg);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
  margin-left: 8px;
  flex-shrink: 0;
  cursor: pointer;
}
.nav-toggle:hover { color: var(--text); border-color: var(--accent-border); }
.nav-toggle .icon { position: absolute; transition: transform 0.4s cubic-bezier(0.68,-0.55,0.27,1.55), opacity 0.3s ease; }
[data-theme="dark"] .nav-toggle .icon-sun { opacity: 1; transform: rotate(0deg) scale(1); }
[data-theme="dark"] .nav-toggle .icon-moon { opacity: 0; transform: rotate(-90deg) scale(0.5); }
[data-theme="light"] .nav-toggle .icon-sun { opacity: 0; transform: rotate(90deg) scale(0.5); }
[data-theme="light"] .nav-toggle .icon-moon { opacity: 1; transform: rotate(0deg) scale(1); }

.nav-right { display: none; }

.nav-hamburger {
  display: none;
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--toggle-bg);
  color: var(--text-secondary);
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
}
.nav-hamburger:hover { color: var(--text); border-color: var(--accent-border); }

.mobile-menu {
  display: none;
  position: fixed;
  top: 56px; left: 0; right: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 8px 16px 16px;
  z-index: 99;
  flex-direction: column;
  gap: 2px;
}
.mobile-menu.open { display: flex; }
.mobile-menu > a {
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.2s;
}
.mobile-menu > a:hover, .mobile-menu > a.active {
  color: var(--accent);
  background: var(--accent-bg);
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-right { display: flex; align-items: center; gap: 8px; }
  .nav-hamburger { display: flex; }
}

/* ======================== */
/* PAGE HEADER              */
/* ======================== */
.page-header {
  padding: 100px 24px 40px;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}
.page-header h1 {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.page-header p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto;
}
.page-header .badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold);
  background: var(--gold-bg);
  border: 1px solid var(--gold-border);
  padding: 4px 14px;
  border-radius: 4px;
  margin-bottom: 16px;
}

/* ======================== */
/* DOWNLOAD BAR             */
/* ======================== */
.download-bar {
  max-width: 900px;
  margin: 0 auto 32px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.download-bar .label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-right: 4px;
}

.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s;
  font-family: inherit;
  cursor: pointer;
}
.dl-btn:hover {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-bg);
  transform: translateY(-1px);
}
.dl-btn svg {
  width: 14px; height: 14px;
  fill: currentColor;
  flex-shrink: 0;
}

/* ======================== */
/* CONTENT WRAPPER          */
/* ======================== */
.content-wrapper {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.content-loading {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-dim);
  font-size: 14px;
}
.content-loading .spinner {
  width: 28px; height: 28px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ======================== */
/* MARKDOWN CONTENT STYLES  */
/* ======================== */
.md-content h1 {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin: 48px 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  line-height: 1.3;
  letter-spacing: -0.02em;
}
.md-content h1:first-child { margin-top: 0; }

.md-content h2 {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin: 40px 0 12px;
  line-height: 1.3;
  letter-spacing: -0.02em;
  border-left: 3px solid var(--accent);
  padding-left: 12px;
}

.md-content h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin: 28px 0 8px;
  letter-spacing: 0.2px;
}

.md-content h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 24px 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.md-content p {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0 0 16px;
  line-height: 1.7;
}

.md-content strong { color: var(--text); font-weight: 600; }
.md-content em { font-style: italic; }

.md-content a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-border);
  transition: all 0.2s;
}
.md-content a:hover {
  color: var(--accent-light);
  border-bottom-color: var(--accent);
}

.md-content ul, .md-content ol {
  margin: 0 0 16px 20px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}
.md-content li { margin-bottom: 4px; }
.md-content li strong { color: var(--text); }

.md-content ul li {
  list-style: none;
  position: relative;
  margin-left: -20px;
  padding-left: 24px;
}
.md-content ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 10px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.6;
}
.md-content ul li input[type="checkbox"] {
  margin-right: 8px;
  accent-color: var(--accent);
}

.md-content hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 40px 0;
}

.md-content blockquote {
  border-left: 3px solid var(--gold);
  padding: 12px 20px;
  margin: 16px 0;
  background: var(--gold-bg);
  border-radius: 0 8px 8px 0;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.md-content blockquote p { margin-bottom: 8px; }
.md-content blockquote p:last-child { margin-bottom: 0; }

.md-content code {
  font-family: 'SF Mono', 'Fira Code', Consolas, monospace;
  font-size: 13px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--gold);
}

.md-content pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 16px 0;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.6;
}
.md-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text-secondary);
  font-size: inherit;
}

.md-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
  overflow-x: auto;
  display: block;
}
.md-content thead { background: var(--surface2); }
.md-content th {
  font-weight: 600;
  color: var(--text);
  text-align: left;
  padding: 10px 14px;
  border: 1px solid var(--border);
  font-size: 13px;
  letter-spacing: 0.3px;
  white-space: nowrap;
}
.md-content td {
  padding: 10px 14px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: top;
}
.md-content tr:nth-child(even) { background: var(--surface2); }
.md-content tbody tr:hover { background: var(--card-hover); }

.md-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

/* ======================== */
/* DASHBOARD                */
/* ======================== */
.dashboard-hero {
  padding: 120px 24px 60px;
  text-align: center;
  position: relative;
}
.dashboard-hero .badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  background: var(--gold-bg);
  border: 1px solid var(--gold-border);
  padding: 6px 18px;
  border-radius: 4px;
  margin-bottom: 20px;
}
.dashboard-hero h1 {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: clamp(32px, 6vw, 52px);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.dashboard-hero h1 span {
  color: var(--accent);
}
.dashboard-hero .subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.6;
}

.dashboard-grid {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px 80px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.dash-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
  position: relative;
  overflow: hidden;
}
.dash-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-border);
  box-shadow: var(--shadow);
}
.dash-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.3s;
}
.dash-card:hover::after { opacity: 1; }
.dash-card .card-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.dash-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.dash-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
}
.dash-card .card-meta {
  font-size: 12px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}
.dash-card .card-arrow {
  position: absolute;
  top: 28px; right: 28px;
  color: var(--text-dim);
  font-size: 18px;
  transition: all 0.3s;
}
.dash-card:hover .card-arrow {
  color: var(--accent);
  transform: translateX(3px);
}

.status-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 10px;
}
.status-complete {
  color: var(--low);
  background: var(--low-bg);
}

/* ======================== */
/* SCROLL REVEAL            */
/* ======================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }
.reveal-d5 { transition-delay: 0.5s; }

/* ======================== */
/* THEME TOGGLE (floating)  */
/* ======================== */
.theme-toggle-float {
  position: fixed;
  bottom: 32px; right: 32px;
  z-index: 150;
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  overflow: hidden;
  cursor: pointer;
}
.theme-toggle-float:hover {
  transform: scale(1.08);
  border-color: var(--accent-border);
}
.theme-toggle-float .icon {
  position: absolute;
  transition: transform 0.4s cubic-bezier(0.68,-0.55,0.27,1.55), opacity 0.3s ease;
}
[data-theme="dark"] .theme-toggle-float .icon-sun { opacity: 1; transform: rotate(0deg) scale(1); }
[data-theme="dark"] .theme-toggle-float .icon-moon { opacity: 0; transform: rotate(-90deg) scale(0.5); }
[data-theme="light"] .theme-toggle-float .icon-sun { opacity: 0; transform: rotate(90deg) scale(0.5); }
[data-theme="light"] .theme-toggle-float .icon-moon { opacity: 1; transform: rotate(0deg) scale(1); }

/* ======================== */
/* FOOTER                   */
/* ======================== */
.site-footer {
  text-align: center;
  padding: 32px 24px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-dim);
}

/* ======================== */
/* PRINT STYLES             */
/* ======================== */
@media print {
  .site-nav, .mobile-menu, .download-bar, .theme-toggle-float { display: none !important; }
  body { background: white; color: #1a1a1a; }
  .page-header { padding-top: 20px; }
  .content-wrapper { max-width: 100%; padding: 0 20px; }
  .md-content h1 { font-size: 22px; border-bottom: 1px solid #ccc; }
  .md-content h2 { font-size: 18px; }
  .md-content h3 { font-size: 15px; }
  .md-content pre, .md-content code { font-size: 11px; }
  .md-content table { font-size: 11px; }
  .md-content blockquote { border-left-color: #999; background: #f9f9f9; }
  .md-content a { color: #333; border-bottom: none; }
  .md-content p, .md-content li, .md-content td { color: #333; }
}

/* ======================== */
/* RESPONSIVE               */
/* ======================== */
@media (max-width: 640px) {
  .page-header { padding: 88px 16px 32px; }
  .page-header h1 { font-size: 24px; }
  .content-wrapper { padding: 0 16px 60px; }
  .download-bar { padding: 0 16px; }
  .dashboard-hero { padding: 100px 16px 40px; }
  .dashboard-grid { padding: 0 16px 60px; gap: 14px; }
  .dash-card { padding: 22px; }
  .md-content h1 { font-size: 22px; margin-top: 36px; }
  .md-content h2 { font-size: 18px; margin-top: 32px; }
  .md-content pre { padding: 12px; font-size: 12px; }
  .md-content table { font-size: 12px; }
  .md-content th, .md-content td { padding: 8px 10px; }
}