/* ==========================================================================
   Agile Coach Professional Website - Modern Responsive Design System
   ========================================================================== */

/* --- CSS Variables / Design Tokens --- */
:root {
  /* Brand Colors */
  --primary: #0284c7;           /* Sky 600 */
  --primary-hover: #0369a1;     /* Sky 700 */
  --primary-light: #e0f2fe;     /* Sky 100 */
  --primary-glow: rgba(2, 132, 199, 0.15);

  --accent: #0d9488;            /* Teal 600 */
  --accent-light: #ccfbf1;      /* Teal 100 */
  --accent-glow: rgba(13, 148, 136, 0.15);

  --secondary: #6366f1;         /* Indigo 500 */
  --secondary-light: #e0e7ff;   /* Indigo 100 */

  /* Neutral & Base Colors (Light Mode) */
  --bg-body: #f8fafc;           /* Slate 50 */
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-muted: #f1f5f9;          /* Slate 100 */
  --bg-subtle: #f8fafc;
  
  --text-main: #0f172a;         /* Slate 900 */
  --text-secondary: #475569;    /* Slate 600 */
  --text-muted: #64748b;        /* Slate 500 */
  --text-light: #94a3b8;        /* Slate 400 */
  --text-inverse: #ffffff;

  --border-color: #e2e8f0;      /* Slate 200 */
  --border-light: #f1f5f9;      /* Slate 100 */
  --border-focus: #0284c7;

  /* Status Colors */
  --success: #10b981;
  --success-bg: #ecfdf5;
  --warning: #f59e0b;
  --warning-bg: #fffbeb;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.09), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 25px rgba(2, 132, 199, 0.25);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 76px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Dark Theme Tokens --- */
[data-theme="dark"] {
  --primary: #38bdf8;           /* Sky 400 */
  --primary-hover: #7dd3fc;     /* Sky 300 */
  --primary-light: rgba(56, 189, 248, 0.12);
  --primary-glow: rgba(56, 189, 248, 0.25);

  --accent: #2dd4bf;            /* Teal 400 */
  --accent-light: rgba(45, 212, 191, 0.12);
  --accent-glow: rgba(45, 212, 191, 0.25);

  --secondary: #818cf8;

  --bg-body: #0b0f19;           /* Deep obsidian */
  --bg-surface: #111827;        /* Slate 900 */
  --bg-surface-elevated: #1f2937;
  --bg-muted: #1e293b;
  --bg-subtle: #0f172a;

  --text-main: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-light: #64748b;
  --text-inverse: #0b0f19;

  --border-color: #243046;
  --border-light: #1e293b;
  --border-focus: #38bdf8;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.25);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.65;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Accessibility: Skip Link */
.skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--primary);
  color: #fff;
  padding: 10px 18px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  z-index: 9999;
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: 20px;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.15rem; }

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: 1rem;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  height: var(--nav-height);
  display: flex;
  align-items: center;
}

[data-theme="dark"] .site-header {
  background: rgba(17, 24, 39, 0.85);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Brand Logo */
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-main);
  letter-spacing: -0.03em;
}

.brand:hover {
  color: var(--primary);
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #ffffff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px var(--primary-glow);
  flex-shrink: 0;
}

.brand-icon svg {
  width: 22px;
  height: 22px;
}

.brand-text span {
  color: var(--primary);
}

/* Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.95rem;
  padding: 0.4rem 0.2rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2.5px;
  background: var(--primary);
  border-radius: var(--radius-full);
}

/* Nav Actions (Theme Toggle & CTA) */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  background: var(--bg-muted);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

/* Mobile Toggle Hamburger */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  padding: 0.5rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.mobile-toggle svg {
  width: 26px;
  height: 26px;
}

/* ==========================================================================
   Buttons & Badges
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #0274b3);
  color: #ffffff;
  box-shadow: 0 4px 12px var(--primary-glow);
}
.btn-primary:hover {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary-hover), #02669e);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--primary-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border-color: var(--border-color);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-muted);
  color: var(--text-main);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background: var(--border-color);
  color: var(--text-main);
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.9rem 1.8rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
}

.badge-primary {
  background: var(--primary-light);
  color: var(--primary);
}

.badge-accent {
  background: var(--accent-light);
  color: var(--accent);
}

.badge-success {
  background: var(--success-bg);
  color: var(--success);
}

/* Pulse dot */
.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 4.5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -150px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  border-radius: 50%;
  z-index: -1;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3.5rem;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-badge-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hero-title {
  font-weight: 800;
  line-height: 1.15;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 540px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.hero-stat-item h4 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
}

.hero-stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* Profile Photo Card Spot */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.profile-card-wrapper {
  position: relative;
  width: 100%;
  max-width: 400px;
}

.profile-card-glow {
  position: absolute;
  inset: -12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  opacity: 0.25;
  filter: blur(24px);
  border-radius: var(--radius-lg);
  z-index: 0;
  transition: opacity var(--transition-normal);
}

.profile-card {
  position: relative;
  z-index: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transition: transform var(--transition-normal);
}

.profile-card:hover {
  transform: translateY(-4px);
}

.profile-image-container {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: var(--bg-muted);
}

.profile-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.profile-card:hover .profile-image-container img {
  transform: scale(1.03);
}

/* Photo Replace Tip Overlay (Subtle) */
.profile-tag-overlay {
  position: absolute;
  bottom: 12px;
  left: 12px;
  right: 12px;
  background: rgba(15, 23, 42, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffffff;
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.profile-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
}

.profile-floating-badge {
  position: absolute;
  top: -15px;
  right: -15px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  z-index: 2;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.floating-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   Certifications Section
   ========================================================================== */
.section {
  padding: 5rem 0;
  position: relative;
}

.section-bg-muted {
  background-color: var(--bg-muted);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}

.section-header .badge {
  margin-bottom: 0.75rem;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.cert-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.cert-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.cert-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.cert-card:hover::before {
  opacity: 1;
}

.cert-badge-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.cert-image-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 90px;
  margin-bottom: 1.25rem;
  padding: 0.5rem;
  background: var(--bg-muted);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.cert-badge-img {
  max-height: 80px;
  max-width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
  transition: transform var(--transition-normal);
}

.cert-card:hover .cert-badge-img {
  transform: scale(1.08);
}

.cert-icon-box {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
  border: 1px solid var(--border-color);
}

.cert-status-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--success);
  background: var(--success-bg);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.cert-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.cert-issuer {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.85rem;
}

.cert-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.cert-meta {
  padding-top: 1rem;
  border-top: 1px dashed var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.cert-meta span strong {
  color: var(--text-main);
}

/* ==========================================================================
   Coaching Pillars / Services
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.service-icon-wrap {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-icon-wrap svg {
  width: 28px;
  height: 28px;
}

.service-title {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.service-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.service-bullets {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-bullets li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.service-bullets li svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
}

/* ==========================================================================
   Agile Outcomes & Metrics
   ========================================================================== */
.metrics-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.metrics-banner::after {
  content: '';
  position: absolute;
  bottom: -50px;
  right: -50px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(2, 132, 199, 0.3) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.metric-box {
  text-align: center;
  padding: 1rem;
}

.metric-num {
  font-size: 2.8rem;
  font-weight: 800;
  color: #38bdf8;
  line-height: 1.1;
  margin-bottom: 0.35rem;
  letter-spacing: -0.03em;
}

.metric-label {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.3rem;
}

.metric-sub {
  font-size: 0.85rem;
  color: #94a3b8;
}

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.testimonial-quote {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 1.5rem;
  position: relative;
}

.testimonial-quote::before {
  content: '“';
  font-size: 3rem;
  line-height: 1;
  font-family: serif;
  color: var(--primary);
  opacity: 0.2;
  position: absolute;
  top: -1.2rem;
  left: -0.5rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.author-info h4 {
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.author-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Contact / Discovery Booking Section
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 3.5rem;
  align-items: flex-start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 22px;
  height: 22px;
}

.contact-text h5 {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.contact-text a, .contact-text p {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
}

/* Form Styling */
.form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-left: 5px solid var(--success);
  padding: 1rem 1.4rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 9999;
  transform: translateY(120%);
  opacity: 0;
  transition: all var(--transition-normal);
  pointer-events: none;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

/* ==========================================================================
   Blog Specific Layout & Components
   ========================================================================== */
.blog-header {
  padding: 4rem 0 2rem;
  text-align: center;
}

.blog-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.blog-search-box {
  position: relative;
  flex: 1;
  min-width: 260px;
  max-width: 400px;
}

.blog-search-box input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  outline: none;
  transition: border-color var(--transition-fast);
}

.blog-search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.blog-search-box svg {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.filter-pills {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

.blog-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.blog-card-header {
  padding: 1.5rem 1.5rem 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.blog-category-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--primary-light);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.blog-read-time {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.blog-card-body {
  padding: 1rem 1.5rem;
  flex-grow: 1;
}

.blog-card-title {
  font-size: 1.3rem;
  line-height: 1.35;
  margin-bottom: 0.75rem;
  color: var(--text-main);
  transition: color var(--transition-fast);
  cursor: pointer;
}

.blog-card-title:hover {
  color: var(--primary);
}

.blog-card-excerpt {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.blog-card-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-subtle);
}

.blog-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.blog-read-btn {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.blog-read-btn:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* Modal Article Reader */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  max-width: 880px;
  width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  position: relative;
  padding: 2.5rem 3rem;
  transform: scale(0.97);
  transition: transform var(--transition-normal);
}

.modal-backdrop.show .modal-content {
  transform: scale(1);
}

.modal-close-btn {
  position: sticky;
  top: 0.5rem;
  float: right;
  z-index: 100;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
  margin-bottom: -40px;
}

.modal-close-btn:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: rotate(90deg);
}

.modal-article-body,
.article-content {
  clear: both;
}

.modal-article-body h2,
.article-content h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  margin: 1.5rem 0 1rem;
  line-height: 1.25;
  color: var(--text-main);
}

.modal-article-body h3,
.article-content h3 {
  font-size: 1.35rem;
  margin: 2rem 0 0.75rem;
  color: var(--text-main);
}

.modal-article-body h4,
.article-content h4 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--text-main);
}

.modal-article-body p,
.article-content p {
  margin-bottom: 1.35rem;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.modal-article-body ul,
.modal-article-body ol,
.article-content ul,
.article-content ol {
  padding-left: 1.75rem;
  margin-bottom: 1.5rem;
}

.modal-article-body ul,
.article-content ul {
  list-style: disc;
}

.modal-article-body ol,
.article-content ol {
  list-style: decimal;
}

.modal-article-body li,
.article-content li {
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.modal-article-body blockquote,
.article-content blockquote {
  border-left: 4px solid var(--primary);
  padding: 1.25rem 1.75rem;
  margin: 1.75rem 0;
  background: var(--bg-muted);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-main);
}

.modal-article-body img,
.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: 1.5rem auto;
  display: block;
  box-shadow: var(--shadow-md);
}

.modal-article-body hr,
.article-content hr {
  border: 0;
  height: 1px;
  background: var(--border-color);
  margin: 2.5rem 0;
}

/* ==========================================================================
   Publications Specific Layout & Components
   ========================================================================== */
.featured-book-banner {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
}

.book-cover-frame {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.2);
  transition: transform var(--transition-normal);
}

.book-cover-frame:hover {
  transform: scale(1.03) rotate(-1deg);
}

.pub-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.pub-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.pub-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.pub-type-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pub-content {
  flex-grow: 1;
}

.pub-header-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.4rem;
  flex-wrap: wrap;
}

.pub-type-pill {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.pub-title {
  font-size: 1.2rem;
  margin-bottom: 0.4rem;
}

.pub-venue {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.pub-summary {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.pub-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  margin-top: auto;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand-col p {
  margin-top: 1rem;
  font-size: 0.95rem;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text-main);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

.social-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.social-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--bg-muted);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-btn:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   Responsive Media Queries (Mobile First Breakpoints)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .hero-content {
    align-items: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats-row {
    width: 100%;
    max-width: 500px;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .featured-book-banner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .book-cover-frame {
    max-width: 260px;
    margin: 0 auto;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 68px;
  }

  .mobile-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
    box-shadow: var(--shadow-xl);
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    width: 100%;
    gap: 1.25rem;
  }

  .nav-link {
    font-size: 1.1rem;
    width: 100%;
    text-align: center;
  }

  .nav-actions {
    width: 100%;
    justify-content: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
  }

  .hero-stats-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .modal-content {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .blog-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .blog-search-box {
    max-width: 100%;
  }
}

/* ==========================================================================
   Breadcrumb Navigation
   ========================================================================== */
.breadcrumb-nav {
  margin-bottom: 2rem;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--text-muted);
  opacity: 0.6;
}

.breadcrumbs a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
  text-decoration: underline;
  color: var(--primary-hover);
}

.breadcrumbs li[aria-current="page"] {
  color: var(--text-secondary);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 420px;
}

/* ==========================================================================
   Standalone Blog Article Layout
   ========================================================================== */
.article-page {
  padding: 3rem 0 5rem;
}

.article-container {
  max-width: 820px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.article-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-main);
  margin-top: 1rem;
  margin-bottom: 1.25rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.article-author-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.article-author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary);
}

.article-meta-divider {
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.6;
}

.article-featured-image {
  margin-bottom: 2.5rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  max-height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-muted);
}

.article-featured-image img {
  width: 100%;
  height: auto;
  max-height: 440px;
  object-fit: cover;
  display: block;
}

/* Author Box at End of Article */
.article-author-card {
  margin-top: 4rem;
  padding: 2.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  gap: 1.75rem;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
}

.article-author-card-avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 3px solid var(--primary);
}

.article-author-card-content h3 {
  font-size: 1.3rem;
  margin-bottom: 0.25rem;
  color: var(--text-main);
}

.article-author-card-content .author-role {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.article-author-card-content p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.article-author-card-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Article Navigation / Back Button */
.article-footer-nav {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

@media (max-width: 640px) {
  .article-author-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .article-author-card-links {
    justify-content: center;
  }
}