/* ============================================================
   Copilot Pulse — Intelligence Dashboard
   Rich modern design with dark mode, glassmorphism, animations
   ============================================================ */

/* ── Google Fonts (loaded in default.html) ── */

/* ── CSS Custom Properties ── */
:root {
  /* Light Mode */
  --color-primary: #0078D4;
  --color-primary-light: #50A0E8;
  --color-primary-dark: #005A9E;
  --color-accent: #6C63FF;
  --color-accent-2: #00BFA6;
  --color-text: #1A1A2E;
  --color-text-secondary: #6B7280;
  --color-bg: #F0F2F5;
  --color-surface: #FFFFFF;
  --color-surface-hover: #F8F9FA;
  --color-border: #E5E7EB;
  --color-border-light: #F3F4F6;

  /* Tone Colors */
  --tone-executive: #0078D4;
  --tone-journalistic: #6C63FF;
  --tone-analytical: #00BFA6;
  --tone-technical: #F59E0B;
  --tone-casual: #EC4899;
  --tone-academic: #8B5CF6;
  --tone-strategic: #EF4444;

  /* Tag Colors */
  --tag-ai: #6C63FF;
  --tag-copilot: #0078D4;
  --tag-azure: #00BFA6;
  --tag-security: #EF4444;
  --tag-github: #333333;
  --tag-default: #6B7280;

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-blur: 20px;
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);

  /* Gradient */
  --gradient-hero: linear-gradient(135deg, #0078D4 0%, #6C63FF 50%, #00BFA6 100%);
  --gradient-hero-dark: linear-gradient(135deg, #004080 0%, #3B3096 50%, #007A66 100%);

  /* Layout */
  --max-width: 1100px;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography */
  --font-family: "Inter", "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
}

/* ── Dark Mode ── */
[data-theme="dark"] {
  --color-text: #E5E7EB;
  --color-text-secondary: #9CA3AF;
  --color-bg: #0F172A;
  --color-surface: #1E293B;
  --color-surface-hover: #334155;
  --color-border: #334155;
  --color-border-light: #1E293B;
  --glass-bg: rgba(30, 41, 59, 0.8);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --tag-github: #E5E7EB;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-text: #E5E7EB;
    --color-text-secondary: #9CA3AF;
    --color-bg: #0F172A;
    --color-surface: #1E293B;
    --color-surface-hover: #334155;
    --color-border: #334155;
    --color-border-light: #1E293B;
    --glass-bg: rgba(30, 41, 59, 0.8);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --tag-github: #E5E7EB;
  }
}

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

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
}

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

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

/* ── Reading Progress Bar ── */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient-hero);
  z-index: 9999;
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

/* ── Glassmorphism Navigation ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  padding: 14px 0;
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-title a {
  color: var(--color-text);
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 8px;
  transition: all var(--transition);
}

.site-nav a:hover {
  color: var(--color-text);
  background: var(--color-surface-hover);
}

.site-nav .nav-cta {
  background: var(--color-primary);
  color: #FFFFFF !important;
  font-weight: 600;
}

.site-nav .nav-cta:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

/* Dark Mode Toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 16px;
  transition: all var(--transition);
  color: var(--color-text);
}

.theme-toggle:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
}

/* ── Hero Section ── */
.hero {
  background: var(--gradient-hero);
  padding: 56px 0 48px;
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 60%);
  animation: hero-shimmer 8s ease-in-out infinite;
}

@keyframes hero-shimmer {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(5%, 5%); }
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 36px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
  max-width: 600px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 28px;
}

.hero-stat {
  text-align: center;
}

.hero-stat-number {
  font-size: 28px;
  font-weight: 800;
  color: #FFFFFF;
}

.hero-stat-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  color: #FFFFFF;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: all var(--transition);
  font-size: 15px;
}

.hero-cta:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  color: #FFFFFF;
}

/* ── Main Content ── */
main {
  padding: 0 0 60px;
  min-height: 60vh;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

/* ── Report Card Grid ── */
.report-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.report-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
}

.report-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--tone-executive);
  border-radius: var(--radius) 0 0 var(--radius);
  transition: width var(--transition);
}

.report-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
  border-color: var(--color-primary);
}

.report-card:hover::before {
  width: 6px;
}

.report-card a {
  text-decoration: none;
  color: inherit;
  display: block;
  padding: 20px 20px 20px 24px;
}

.report-card-date {
  font-size: 12px;
  color: var(--color-text-secondary);
  font-weight: 500;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.report-card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.report-card-excerpt {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.report-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.report-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* ── Tags ── */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  background: var(--color-border-light);
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

.tone-tag {
  background: var(--color-primary);
  color: #FFFFFF;
}

/* ── Report Page ── */
.report {
  max-width: 780px;
  margin: 0 auto;
  padding: 40px 24px;
}

.report-header {
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 2px solid var(--color-border);
  position: relative;
}

.report-header::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 80px;
  height: 2px;
  background: var(--gradient-hero);
}

.report-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.report-meta {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.report-meta a { color: var(--color-primary); }

.report-tags { margin-bottom: 16px; display: flex; flex-wrap: wrap; gap: 6px; }

.report-sources {
  font-size: 13px;
  color: var(--color-text-secondary);
  background: var(--color-surface-hover);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
}

.report-sources summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-text);
}

.report-sources ul {
  margin-top: 8px;
  padding-left: 20px;
}

.report-sources a {
  color: var(--color-primary);
  font-size: 12px;
  word-break: break-all;
}

/* ── Report Content ── */
.report-content {
  font-size: 16px;
  line-height: 1.85;
}

.report-content h2 {
  font-size: 24px;
  font-weight: 700;
  margin-top: 40px;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.report-content h3 {
  font-size: 19px;
  font-weight: 600;
  margin-top: 28px;
  margin-bottom: 10px;
}

.report-content p { margin-bottom: 18px; }

.report-content blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 16px 20px;
  margin: 20px 0;
  background: var(--color-surface-hover);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

.report-content ul, .report-content ol {
  padding-left: 24px;
  margin-bottom: 18px;
}

.report-content li { margin-bottom: 8px; }

.report-content code {
  background: var(--color-surface-hover);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  font-family: var(--font-mono);
  border: 1px solid var(--color-border);
}

.report-content pre {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  overflow-x: auto;
  margin: 20px 0;
}

.report-content pre code {
  background: none;
  padding: 0;
  border: none;
}

.report-content a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; }
.report-content a:hover { color: var(--color-primary-light); }

.report-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}

.report-content th, .report-content td {
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  text-align: left;
}

.report-content th {
  background: var(--color-surface-hover);
  font-weight: 600;
}

/* ── Report Footer ── */
.report-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.report-footer a {
  color: var(--color-primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.share-btn {
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition);
  font-family: var(--font-family);
}

.share-btn:hover {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

/* ── Site Footer ── */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
  margin-top: 60px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-brand {
  font-weight: 700;
  font-size: 16px;
  color: var(--color-text);
  margin-bottom: 4px;
}

.footer-tagline {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: color var(--transition);
}

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

/* ── About Page ── */
.about-content h2 {
  font-size: 22px;
  font-weight: 700;
  margin-top: 36px;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.about-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
}

.about-content th, .about-content td {
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  text-align: left;
}

.about-content th {
  background: var(--color-surface-hover);
  font-weight: 600;
}

.step-list {
  counter-reset: step;
  list-style: none;
  padding: 0;
}

.step-list li {
  counter-increment: step;
  padding: 16px 16px 16px 60px;
  margin-bottom: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  position: relative;
}

.step-list li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 16px;
  width: 32px;
  height: 32px;
  background: var(--gradient-hero);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--color-text-secondary);
}

.empty-state h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}

.empty-state p { max-width: 400px; margin: 0 auto; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .report-list {
    grid-template-columns: 1fr;
  }

  .hero-title { font-size: 26px; }
  .hero-stats { gap: 20px; }
  .hero-stat-number { font-size: 22px; }

  .site-header .container {
    flex-direction: column;
    gap: 10px;
  }

  .report-title { font-size: 24px; }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

/* ── Print ── */
@media print {
  .site-header, .site-footer, .hero, .share-btn, .theme-toggle, .reading-progress { display: none; }
  .report { max-width: 100%; padding: 0; }
  .report-content { font-size: 12pt; }
  body { background: white; color: black; }
}

/* ── Custom Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-secondary); }