/* ==========================================================================
   Arthelais Labs LLC - Design System & Modern Light Theme Stylesheet
   ========================================================================== */

:root {
  /* Color Palette - Light High-Tech & Corporate Elegance */
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-alt: #f1f5f9;
  --bg-surface-hover: #f8fbff;
  --border-light: #e2e8f0;
  --border-focus: #38bdf8;
  --border-card: rgba(226, 232, 240, 0.9);

  /* Typography Colors */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  /* Brand Accents (Derived from Logo & Banner: Cyan, Azure & Navy) */
  --brand-navy: #002b5b;
  --brand-blue: #0284c7;
  --brand-cyan: #06b6d4;
  --brand-teal: #0d9488;
  --brand-gradient: linear-gradient(135deg, #0284c7 0%, #06b6d4 100%);
  --brand-gradient-hover: linear-gradient(135deg, #0369a1 0%, #0891b2 100%);
  --brand-glow: rgba(2, 132, 199, 0.15);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 12px 28px -4px rgba(15, 23, 42, 0.08), 0 4px 10px -2px rgba(15, 23, 42, 0.04);
  --shadow-hover: 0 20px 35px -8px rgba(2, 132, 199, 0.12), 0 8px 16px -4px rgba(15, 23, 42, 0.04);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Layout */
  --max-width: 1240px;
  --header-height: 80px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  position: relative;
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  background: radial-gradient(circle at 10% 10%, rgba(6, 182, 212, 0.04) 0%, transparent 45%),
              radial-gradient(circle at 90% 40%, rgba(2, 132, 199, 0.04) 0%, transparent 50%),
              var(--bg-main);
}

/* Background Ambient Visual Layers */
.ambient-glow {
  position: absolute;
  pointer-events: none;
  z-index: -1;
  filter: blur(90px);
  border-radius: 50%;
  opacity: 0.6;
}

.glow-1 {
  top: 60px;
  right: 5%;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.12) 0%, rgba(6, 182, 212, 0.02) 70%, transparent 100%);
}

.glow-2 {
  top: 900px;
  left: 0%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(2, 132, 199, 0.08) 0%, rgba(13, 148, 136, 0.02) 70%, transparent 100%);
}

.background-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1400px;
  background-image: linear-gradient(to right, rgba(226, 232, 240, 0.4) 1px, transparent 1px),
                    linear-gradient(to bottom, rgba(226, 232, 240, 0.4) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(to bottom, black 20%, transparent 85%);
  -webkit-mask-image: linear-gradient(to bottom, black 20%, transparent 85%);
  pointer-events: none;
  z-index: -1;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

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

p {
  color: var(--text-secondary);
}

.gradient-text {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.font-mono {
  font-family: var(--font-mono);
}

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

/* Button Component System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
  font-family: var(--font-sans);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
}

.btn-primary {
  background: var(--brand-gradient);
  color: var(--text-inverse);
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.28);
}

.btn-primary:hover {
  background: var(--brand-gradient-hover);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.38);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-surface-alt);
  border-color: #cbd5e1;
  color: var(--brand-blue);
  transform: translateY(-1px);
}

.btn-tertiary {
  background: rgba(2, 132, 199, 0.08);
  color: var(--brand-blue);
}

.btn-tertiary:hover {
  background: rgba(2, 132, 199, 0.14);
  transform: translateY(-1px);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
}

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

.brand-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
  padding: 6px 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand-gradient);
  transition: var(--transition);
  border-radius: 2px;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #166534;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.2);
  animation: pulse 2.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding-top: 50px;
  padding-bottom: 70px;
  position: relative;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 48px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  width: fit-content;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(2, 132, 199, 0.2);
  border-radius: 30px;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.06);
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-blue);
}

.pill-text {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--brand-blue);
  letter-spacing: 0.02em;
}

.hero-title {
  font-size: 3.1rem;
  font-weight: 800;
  line-height: 1.15;
  color: #0b192c;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: 1.12rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 600px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}

.hero-metrics {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 24px;
  margin-top: 12px;
  border-top: 1px solid var(--border-light);
}

.metric-card {
  display: flex;
  flex-direction: column;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--brand-navy);
  letter-spacing: -0.02em;
}

.metric-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
}

.metric-divider {
  width: 1px;
  height: 36px;
  background: var(--border-light);
}

/* Hero Visual Card */
.hero-visual {
  position: relative;
}

.visual-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(226, 232, 240, 0.9);
  background: var(--bg-surface);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.visual-frame:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.hero-banner-img {
  width: 100%;
  height: 100%;
  max-height: 480px;
  object-fit: cover;
  display: block;
}

.visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.3) 0%, transparent 60%);
  pointer-events: none;
}

.visual-badge-floating {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.badge-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.badge-icon img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.badge-info {
  display: flex;
  flex-direction: column;
}

.badge-info strong {
  font-size: 0.92rem;
  color: var(--text-primary);
}

.badge-info span {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ==========================================================================
   Section Headers & Shared Section Styles
   ========================================================================== */
.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  max-width: 720px;
  margin: 0 auto 56px auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-blue);
  background: rgba(2, 132, 199, 0.08);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  color: #0b192c;
  margin-bottom: 16px;
  letter-spacing: -0.025em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-section {
  background: linear-gradient(to bottom, transparent, rgba(241, 245, 249, 0.6) 50%, transparent);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px;
}

.about-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 38px;
  box-shadow: var(--shadow-md);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.about-card-badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand-teal);
  background: rgba(13, 148, 136, 0.08);
  padding: 4px 12px;
  border-radius: 12px;
  width: fit-content;
}

.about-card h3 {
  font-size: 1.55rem;
  color: #0b192c;
}

.card-bullet-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 8px;
}

.bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.check-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(2, 132, 199, 0.1);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 800;
  flex-shrink: 0;
  margin-top: 2px;
}

/* Principal Lead Profile Box */
.lead-profile-box {
  margin-top: auto;
  padding: 20px;
  background: var(--bg-surface-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  display: flex;
  gap: 16px;
  align-items: center;
}

.lead-avatar-wrap {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 2px solid #ffffff;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.lead-avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lead-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.lead-meta h4 {
  font-size: 1.05rem;
  color: var(--text-primary);
}

.lead-meta p {
  font-size: 0.82rem;
  color: var(--brand-blue);
  font-weight: 600;
}

.lead-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 6px;
}

.link-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.link-item:hover {
  color: var(--brand-blue);
}

/* ==========================================================================
   Expertise / Practice Areas Section
   ========================================================================== */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.expertise-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
}

.expertise-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(2, 132, 199, 0.3);
}

.card-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.08) 0%, rgba(6, 182, 212, 0.12) 100%);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(2, 132, 199, 0.15);
}

.card-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--brand-blue);
  margin-bottom: 8px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #0b192c;
  line-height: 1.35;
  margin-bottom: 12px;
}

.card-text {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 18px;
}

.capability-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}

.capability-list li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  position: relative;
  padding-left: 18px;
}

.capability-list li::before {
  content: '•';
  position: absolute;
  left: 4px;
  color: var(--brand-cyan);
  font-weight: bold;
}

/* ==========================================================================
   Tech Stack & Ecosystem Section
   ========================================================================== */
.stack-section {
  background: #ffffff;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.stack-group {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
}

.stack-group-title {
  font-size: 1.15rem;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #0b192c;
}

.group-icon {
  font-size: 1.3rem;
}

.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tech-tag {
  display: inline-block;
  padding: 8px 14px;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.tech-tag:hover {
  background: #ffffff;
  border-color: var(--brand-blue);
  color: var(--brand-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.tech-tag-expert {
  background: #f0f9ff;
  border-color: #bae6fd;
  color: #0369a1;
  font-weight: 600;
}

.tech-tag-expert:hover {
  background: #e0f2fe;
  border-color: #38bdf8;
  color: #0284c7;
}

/* ==========================================================================
   Panorama / Visual Showcase
   ========================================================================== */
.panorama-section {
  padding: 30px 0;
}

.panorama-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.panorama-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}

.panorama-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 25, 44, 0.82) 0%, rgba(15, 23, 42, 0.45) 100%);
  display: flex;
  align-items: center;
  padding: 40px;
}

.panorama-content {
  max-width: 740px;
  color: #ffffff;
}

.panorama-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #38bdf8;
  margin-bottom: 12px;
}

.panorama-content h3 {
  color: #ffffff;
  font-size: 1.7rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 12px;
}

.panorama-content p {
  color: #cbd5e1;
  font-size: 0.95rem;
}

/* ==========================================================================
   Principles Section
   ========================================================================== */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.principle-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition);
}

.principle-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(2, 132, 199, 0.25);
}

.principle-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: rgba(2, 132, 199, 0.25);
  font-family: var(--font-mono);
}

.principle-card h4 {
  font-size: 1.15rem;
  color: #0b192c;
}

.principle-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   Corporate Standing Section
   ========================================================================== */
.corporate-section {
  background: linear-gradient(to bottom, transparent, rgba(240, 249, 255, 0.5) 50%, transparent);
}

.corporate-box {
  background: var(--bg-surface);
  border: 1px solid rgba(2, 132, 199, 0.25);
  border-radius: var(--radius-xl);
  padding: 44px;
  box-shadow: var(--shadow-lg);
}

.corporate-header {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 28px;
}

.state-seal-wrap {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.entity-seal {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.corporate-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-blue);
  margin-bottom: 4px;
}

.corporate-title {
  font-size: 1.9rem;
  color: #0b192c;
  margin-bottom: 6px;
}

.corporate-subtitle {
  font-size: 0.98rem;
  color: var(--text-secondary);
}

.corporate-details-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 36px;
}

.detail-item {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.detail-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.detail-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.font-highlight {
  color: var(--brand-blue);
  font-weight: 700;
}

.status-badge-good {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #15803d;
}

.green-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
}

.certificate-action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: #f8fafc;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 18px 24px;
}

.cert-info-text {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.cert-info-text svg {
  color: var(--brand-blue);
  flex-shrink: 0;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 50px 40px;
  box-shadow: var(--shadow-md);
}

.contact-header {
  margin-bottom: 44px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.contact-channel-card {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: var(--transition);
}

.contact-channel-card:hover {
  background: #ffffff;
  border-color: rgba(2, 132, 199, 0.35);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.channel-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 1px solid var(--border-light);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
}

.channel-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-grow: 1;
}

.channel-label {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.channel-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: #0b192c;
  word-break: break-all;
}

.channel-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.channel-actions {
  display: flex;
  gap: 10px;
  margin-top: auto;
}

.badge-tag {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--brand-blue);
  background: rgba(2, 132, 199, 0.08);
  padding: 6px 12px;
  border-radius: 6px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--border-light);
  padding: 70px 0 35px 0;
  margin-top: 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-logo {
  height: 36px;
  width: auto;
  object-fit: contain;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 320px;
  line-height: 1.6;
}

.footer-nav-col h5 {
  font-size: 0.92rem;
  font-weight: 700;
  color: #0b192c;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-nav-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav-col a {
  text-decoration: none;
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-nav-col a:hover {
  color: var(--brand-blue);
}

.footer-legal-snippet {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-light);
  padding: 14px;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.inline-cert-link {
  color: var(--brand-blue);
  font-weight: 600;
  text-decoration: none;
}

.inline-cert-link:hover {
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-light);
  padding-top: 25px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

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

/* ==========================================================================
   Certificate Modal Dialog
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal-backdrop.open {
  display: flex;
  opacity: 1;
}

.modal-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  max-width: 680px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(226, 232, 240, 0.9);
  animation: modalEnter 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalEnter {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  border-bottom: 1px solid var(--border-light);
  background: #f8fafc;
}

.modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.modal-seal-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(2, 132, 199, 0.1);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-title-wrap h3 {
  font-size: 1.25rem;
  color: #0b192c;
}

.modal-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 1.8rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  padding: 4px;
  transition: var(--transition);
}

.modal-close-btn:hover {
  color: #0b192c;
  transform: scale(1.1);
}

.modal-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Certificate Preview Document Replica */
.cert-preview-card {
  border: 2px solid #cbd5e1;
  border-radius: var(--radius-md);
  padding: 34px 28px;
  background: #ffffff;
  position: relative;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.02);
}

.cert-preview-card::after {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1px dashed #94a3b8;
  border-radius: 6px;
  pointer-events: none;
}

.cert-doc-header {
  text-align: center;
  margin-bottom: 24px;
}

.cert-doc-header h4 {
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  color: #1e293b;
}

.cert-doc-header h5 {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: #475569;
  margin-top: 4px;
  font-weight: 600;
}

.cert-doc-divider {
  width: 60px;
  height: 2px;
  background: var(--brand-blue);
  margin: 12px auto;
}

.cert-doc-header h3 {
  font-size: 1.45rem;
  color: #0b192c;
  font-family: Georgia, serif;
  font-style: italic;
}

.cert-doc-body {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cert-legal-text {
  font-size: 0.92rem;
  color: #475569;
  line-height: 1.6;
}

.cert-entity-name {
  font-size: 1.7rem;
  font-weight: 800;
  color: #0b192c;
  padding: 8px 0;
  letter-spacing: -0.01em;
}

.cert-business-id {
  font-size: 0.95rem;
  font-weight: 600;
  color: #334155;
  font-family: var(--font-mono);
}

.cert-business-id span {
  color: var(--brand-blue);
  background: rgba(2, 132, 199, 0.08);
  padding: 2px 8px;
  border-radius: 4px;
}

.cert-entity-type {
  font-size: 0.92rem;
  font-weight: 600;
  color: #475569;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cert-legal-statute {
  font-size: 0.82rem;
  color: #64748b;
  font-style: italic;
  max-width: 480px;
  margin: 0 auto;
}

.cert-doc-footer {
  display: flex;
  justify-content: space-around;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid #e2e8f0;
}

.cert-date-col, .cert-sig-col {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cert-label {
  font-size: 0.72rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cert-doc-footer strong {
  font-size: 0.92rem;
  color: #1e293b;
}

.cert-download-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast-notification {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #0f172a;
  color: #ffffff;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 2000;
  transform: translateY(100px);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
  pointer-events: none;
}

.toast-notification.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-notification svg {
  color: #38bdf8;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-content {
    max-width: 700px;
  }

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

  .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .principles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .corporate-details-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  .hero-title {
    font-size: 2.3rem;
  }

  .section-title {
    font-size: 1.85rem;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: 30px 24px;
    gap: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid var(--border-light);
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

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

  .mobile-toggle {
    display: flex;
  }

  .status-indicator {
    display: none;
  }

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

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

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

  .corporate-box {
    padding: 24px;
  }

  .corporate-header {
    flex-direction: column;
    text-align: center;
  }

  .corporate-details-grid {
    grid-template-columns: 1fr;
  }

  .certificate-action-row {
    flex-direction: column;
    text-align: center;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 14px;
    text-align: center;
  }
}