/* ==========================================================================
   Aurora Labs (PVT) LTD — Main Stylesheet
   Theme: Deep Aurora Obsidian & Luminous Gradients
   ========================================================================== */

:root {
  /* Color Palette - Default Dark Obsidian */
  --bg-primary: #070a12;
  --bg-secondary: #0d121f;
  --bg-tertiary: #131b2e;
  --bg-glass: rgba(7, 10, 18, 0.88);
  --bg-glass-card: rgba(17, 24, 41, 0.7);
  --bg-glass-card-hover: rgba(22, 32, 54, 0.85);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(6, 182, 212, 0.25);
  --border-emerald: rgba(16, 185, 129, 0.25);
  --border-purple: rgba(129, 140, 248, 0.25);

  /* Aurora Brand Accents */
  --aurora-cyan: #06b6d4;
  --aurora-emerald: #10b981;
  --aurora-purple: #818cf8;
  --aurora-blue: #3b82f6;
  --aurora-gradient: linear-gradient(135deg, #06b6d4 0%, #10b981 50%, #818cf8 100%);
  --aurora-gradient-subtle: linear-gradient(135deg, rgba(6, 182, 212, 0.15) 0%, rgba(16, 185, 129, 0.12) 50%, rgba(129, 140, 248, 0.15) 100%);

  /* Text Colors (Dark Theme: High Contrast WCAG AAA) */
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --text-accent: #38bdf8;
  --text-btn-primary: #070a12;

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

  /* Shadows & Glows */
  --glow-cyan: 0 0 35px -5px rgba(6, 182, 212, 0.25);
  --glow-emerald: 0 0 35px -5px rgba(16, 185, 129, 0.25);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);

  /* Surfaces & Controls */
  --terminal-bg: #03060a;
  --terminal-border: rgba(255, 255, 255, 0.08);
  --form-bg: rgba(3, 6, 10, 0.6);
  --modal-bg: #0d121f;
  --footer-bg: #04070d;

  /* Layout */
  --container-max: 1200px;
  --header-height: 72px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

[data-theme="light"] {
  /* Crisp, High-Contrast White Theme (WCAG AAA & AA Compliant) */
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --bg-glass: rgba(255, 255, 255, 0.92);
  --bg-glass-card: #ffffff;
  --bg-glass-card-hover: #ffffff;

  --border-subtle: rgba(15, 23, 42, 0.12);
  --border-glow: rgba(2, 132, 199, 0.35);
  --border-emerald: rgba(5, 150, 105, 0.35);
  --border-purple: rgba(79, 70, 229, 0.35);

  /* Brand Accents adapted for high contrast readability against white */
  --aurora-cyan: #0284c7;
  --aurora-emerald: #059669;
  --aurora-purple: #4f46e5;
  --aurora-blue: #2563eb;
  --aurora-gradient: linear-gradient(135deg, #0284c7 0%, #059669 50%, #4f46e5 100%);
  --aurora-gradient-subtle: linear-gradient(135deg, rgba(2, 132, 199, 0.08) 0%, rgba(5, 150, 105, 0.06) 50%, rgba(79, 70, 229, 0.08) 100%);

  /* Text Colors - Tested for 16:1 Contrast Ratio (WCAG AAA) */
  --text-main: #0f172a;
  --text-muted: #334155;
  --text-dim: #64748b;
  --text-accent: #0284c7;
  --text-btn-primary: #ffffff;

  /* Shadows */
  --glow-cyan: 0 4px 20px -2px rgba(2, 132, 199, 0.15);
  --glow-emerald: 0 4px 20px -2px rgba(5, 150, 105, 0.15);
  --shadow-card: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 2px 8px -2px rgba(15, 23, 42, 0.04);

  /* Surfaces & Controls */
  --terminal-bg: #0f172a;
  --terminal-border: #1e293b;
  --form-bg: #ffffff;
  --modal-bg: #ffffff;
  --footer-bg: #f1f5f9;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
  color-scheme: dark;
}

[data-theme="light"] {
  color-scheme: light;
}

/* ── Accessibility Helpers ── */
:focus-visible {
  outline: 2px solid var(--aurora-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-to-content {
  position: absolute;
  top: -120px;
  left: 20px;
  background: var(--aurora-cyan);
  color: #ffffff;
  padding: 12px 22px;
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--radius-sm);
  z-index: 99999;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  transition: top 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.skip-to-content:focus {
  top: 16px;
  outline: 3px solid var(--text-main);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Background Aurora Ambient Lights */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
  transition: opacity var(--transition-normal);
}

[data-theme="light"] .ambient-glow {
  opacity: 0.15;
}

.glow-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.3), transparent 70%);
  top: -100px;
  left: 10%;
}
.glow-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.2), transparent 70%);
  top: 40%;
  right: -150px;
}
.glow-3 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(129, 140, 248, 0.2), transparent 70%);
  bottom: 10%;
  left: -100px;
}

/* Grid Pattern Overlay */
.grid-bg-overlay {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
  transition: background-image var(--transition-normal);
}

[data-theme="light"] .grid-bg-overlay {
  background-image: 
    linear-gradient(rgba(15, 23, 42, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.035) 1px, transparent 1px);
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ── Typography Helpers ── */
h1, h2, h3, h4 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.2;
}

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

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--aurora-cyan);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 48px auto;
}

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

/* ── Buttons & Badges ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--aurora-gradient);
  color: var(--text-btn-primary);
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(6, 182, 212, 0.45);
}

.btn-secondary {
  background: var(--bg-glass-card);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--bg-glass-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-2px);
  color: var(--aurora-cyan);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 6px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

.badge-br {
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* ── Navigation Bar ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background var(--transition-normal), border-color var(--transition-normal);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(16, 185, 129, 0.2));
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition-fast);
}

.brand-tag {
  font-size: 11px;
  color: var(--text-dim);
  font-weight: 500;
}

/* ── Accessible Theme Toggle Button ── */
.theme-toggle {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--border-glow);
  color: var(--aurora-cyan);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.15);
}

.theme-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.theme-toggle:hover .theme-icon {
  transform: rotate(15deg);
}

/* Light / Dark Mode Icon Switching */
[data-theme="light"] .sun-icon {
  display: none !important;
}
[data-theme="light"] .moon-icon {
  display: block !important;
}

:root:not([data-theme="light"]) .sun-icon {
  display: block !important;
}
:root:not([data-theme="light"]) .moon-icon {
  display: none !important;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: #ffffff;
}

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

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  padding: 8px;
}

.mobile-menu {
  display: none !important;
}

/* ── Hero Section ── */
.hero-section {
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}

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

.hero-headline {
  font-size: clamp(36px, 5vw, 56px);
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 19px;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-muted);
}

.meta-icon {
  color: var(--aurora-cyan);
}

/* Hero Showcase Card / Visual */
.hero-visual-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card), var(--glow-cyan);
  backdrop-filter: blur(14px);
  position: relative;
}

.visual-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.live-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--aurora-emerald);
  background: rgba(16, 185, 129, 0.12);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}

.metric-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.metric-box {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px;
}

.metric-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-main);
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: 6px;
}

.metric-num span {
  color: var(--aurora-cyan);
}

.metric-desc {
  font-size: 12px;
  color: var(--text-muted);
}

.hero-terminal {
  background: var(--terminal-bg);
  border: 1px solid var(--terminal-border);
  border-radius: var(--radius-sm);
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #38bdf8;
  line-height: 1.6;
}

.terminal-line-comment {
  color: var(--text-dim);
}

.terminal-line-success {
  color: var(--aurora-emerald);
}

/* ── Section Dividers & General Layout ── */
section {
  padding: 96px 0;
  position: relative;
  z-index: 1;
}

/* ── Offerings / What We Do ── */
.offerings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
}

.offering-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  transition: all var(--transition-normal);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
}

.offering-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-card), var(--glow-cyan);
}

.offering-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  color: var(--aurora-cyan);
}

.offering-card:nth-child(2) .offering-icon-wrap {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.2);
  color: var(--aurora-emerald);
}

.offering-card:nth-child(3) .offering-icon-wrap {
  background: rgba(129, 140, 248, 0.1);
  border-color: rgba(129, 140, 248, 0.2);
  color: var(--aurora-purple);
}

.offering-card:nth-child(4) .offering-icon-wrap {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.2);
  color: #f59e0b;
}

.offering-title {
  font-size: 20px;
  margin-bottom: 12px;
}

.offering-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.offering-features {
  list-style: none;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.offering-features li {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.offering-features li::before {
  content: "▹";
  color: var(--aurora-cyan);
}

/* ── Project Showcase & Portfolio ── */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: rgba(6, 182, 212, 0.15);
  border-color: var(--aurora-cyan);
  color: #ffffff;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--aurora-gradient);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.project-card:hover {
  border-color: rgba(6, 182, 212, 0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), var(--glow-cyan);
}

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

.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
}

.project-tag-wrap {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.project-tag {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-dim);
}

.project-status {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(16, 185, 129, 0.12);
  color: var(--aurora-emerald);
}

.project-title {
  font-size: 22px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.project-subtitle {
  font-size: 13px;
  color: var(--aurora-cyan);
  font-weight: 600;
  margin-bottom: 16px;
}

.project-overview {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.project-stack-section {
  background: rgba(3, 6, 10, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-bottom: 20px;
}

.stack-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tech-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  color: #e2e8f0;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.project-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

/* ── Tech Stack Master Section ── */
.stack-category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.stack-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
}

.stack-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.stack-icon {
  color: var(--aurora-cyan);
}

.stack-card h3 {
  font-size: 18px;
}

.stack-list {
  list-style: none;
}

.stack-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
  font-size: 13px;
}

.stack-item:last-child {
  border-bottom: none;
}

.stack-item-name {
  font-weight: 600;
  color: #ffffff;
}

.stack-item-role {
  color: var(--text-dim);
  font-size: 12px;
}

/* ── Founders Section ── */
.founders-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  max-width: 960px;
  margin: 0 auto;
}

.founder-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: all var(--transition-normal);
  backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
}

.founder-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), var(--glow-cyan);
}

.founder-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
}

.founder-avatar {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(129, 140, 248, 0.2));
  border: 2px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 800;
  color: var(--text-main);
  font-family: var(--font-mono);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.founder-name {
  font-size: 22px;
  margin-bottom: 4px;
}

.founder-title {
  font-size: 14px;
  color: var(--aurora-cyan);
  font-weight: 600;
}

.founder-bio {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
  flex-grow: 1;
}

.founder-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.founder-tag {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

/* ── Contact Section ── */
.contact-section {
  background: linear-gradient(180deg, transparent 0%, rgba(13, 18, 31, 0.8) 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.info-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  color: var(--aurora-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.info-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  text-decoration: none;
  display: inline-block;
  transition: color var(--transition-fast);
}

.info-value:hover {
  color: var(--aurora-cyan);
}

.info-subtext {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.contact-direct-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

/* Contact Form */
.contact-form-wrap {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(14px);
}

.form-group {
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--form-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 14px;
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--aurora-cyan);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-alert {
  display: none;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-top: 16px;
}

.form-alert.show {
  display: block;
}

.form-alert.success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

/* ── Modal & Drawer System ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 6, 10, 0.85);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  max-width: 650px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-card), var(--glow-cyan);
  position: relative;
  padding: 32px;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.06);
  border: none;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.modal-stack-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 13px;
}

.modal-stack-row:last-child {
  border-bottom: none;
}

.modal-stack-layer {
  font-family: var(--font-mono);
  color: var(--aurora-cyan);
  font-weight: 600;
  font-size: 12px;
}

.modal-stack-tech {
  color: #e2e8f0;
  font-weight: 500;
  text-align: right;
  max-width: 65%;
}

.feat-bullet {
  color: var(--aurora-cyan);
  margin-right: 6px;
}

/* ── Footer ── */
footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 30px;
  position: relative;
  z-index: 1;
  transition: background var(--transition-normal), border-color var(--transition-normal);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-col-brand {
  max-width: 360px;
}

.footer-col-brand p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 12px;
  line-height: 1.6;
}

.footer-links-group {
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
}

.footer-col h4 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-main);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  text-decoration: none;
  font-size: 14px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--aurora-cyan);
}

.footer-bottom {
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--text-dim);
}

.footer-legal-tag {
  color: var(--text-muted);
  font-weight: 500;
}

/* ── Toast Notification ── */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-glow);
  color: var(--text-main);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  font-size: 14px;
  z-index: 3000;
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ==========================================================================
   Responsive Breakpoints & Accessibility Modes
   ========================================================================== */

/* ── Large Tablets & Small Laptops (max-width: 1024px) ── */
@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }
  
  .hero-grid {
    gap: 36px;
  }
}

/* ── Standard Tablets (max-width: 992px) ── */
@media (max-width: 992px) {
  .hero-section {
    padding: 120px 0 60px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .offerings-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .founders-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-links-group {
    gap: 36px;
  }
}

/* ── Mobile Devices & Portrait Tablets (max-width: 768px) ── */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  section {
    padding: 60px 0;
  }

  .hero-section {
    padding: 96px 0 44px;
  }

  .hero-headline {
    font-size: clamp(26px, 7vw, 36px);
    letter-spacing: -0.02em;
    margin-bottom: 18px;
  }

  .hero-subtitle {
    font-size: 15px;
    margin-bottom: 24px;
    line-height: 1.6;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 12px;
    margin-bottom: 28px;
  }

  .hero-cta-group .btn {
    width: 100%;
    min-height: 48px;
  }

  .hero-meta-strip {
    flex-direction: column;
    gap: 12px;
    padding-top: 18px;
  }

  .meta-item {
    font-size: 12px;
  }

  .hero-visual-card {
    padding: 20px;
  }

  .metric-highlights {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .metric-box {
    padding: 12px;
  }

  .metric-num {
    font-size: 24px;
  }

  .metric-desc {
    font-size: 11px;
  }

  .hero-terminal {
    font-size: 11px;
    padding: 12px;
    overflow-x: auto;
  }

  .section-title {
    font-size: clamp(22px, 5.5vw, 30px);
    margin-bottom: 12px;
  }

  .section-desc {
    font-size: 14.5px;
    margin-bottom: 28px;
  }

  .offerings-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .offering-card {
    padding: 24px 20px;
  }

  /* Horizontal Scrolling Filter Tabs on Mobile */
  .filter-tabs {
    display: flex;
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    gap: 8px;
    padding: 4px 2px 14px 2px;
    margin-bottom: 24px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .filter-tabs::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    white-space: nowrap;
    padding: 8px 16px;
    font-size: 13px;
    flex-shrink: 0;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .project-card {
    padding: 24px 18px;
  }

  .project-title {
    font-size: 20px;
  }

  .project-overview {
    font-size: 13.5px;
    margin-bottom: 18px;
  }

  .founders-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .founder-card {
    padding: 24px 18px;
  }

  .founder-avatar {
    width: 58px;
    height: 58px;
    font-size: 19px;
    border-radius: 14px;
  }

  .contact-info-card, .contact-form-wrap {
    padding: 24px 18px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  /* 16px font-size prevents iOS Safari automatic zoom on focus */
  .form-control {
    font-size: 16px;
    min-height: 48px;
  }

  .nav-links, .nav-actions .btn {
    display: none;
  }

  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
  }

  .mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 20px 24px;
    display: none !important;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  }

  .mobile-menu.open {
    display: flex !important;
  }

  .mobile-menu a {
    text-decoration: none;
    color: var(--text-main);
    font-size: 16px;
    font-weight: 600;
    padding: 8px 0;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .footer-top {
    flex-direction: column;
    gap: 28px;
    padding-bottom: 28px;
  }

  .footer-links-group {
    flex-direction: column;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    font-size: 12px;
  }
}

/* ── Small Mobile Phones (max-width: 480px) ── */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .metric-highlights {
    grid-template-columns: 1fr;
  }

  .nav-brand .brand-name {
    font-size: 16px;
  }

  .brand-tag {
    font-size: 9.5px;
  }

  .project-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

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

  .toast-notice {
    left: 16px;
    right: 16px;
    bottom: 16px;
  }
}

/* ── Accessibility: Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── Accessibility: Windows High Contrast Mode ── */
@media (forced-colors: active) {
  .btn, .project-card, .offering-card, .founder-card, .theme-toggle {
    border: 2px solid ButtonText !important;
  }
  .gradient-text {
    background: none !important;
    -webkit-text-fill-color: CanvasText !important;
    color: CanvasText !important;
  }
}