/* ============================================
   Athonics Design System
   Premium consulting site — styles.css
   ============================================ */

/* --- Google Fonts --- */
/* Font loaded via <link> in HTML head for parallel loading */

/* --- Custom Properties --- */
:root {
  /* Colors */
  --primary: #FF5349;
  --primary-dark: #E0392F;
  --primary-light: #FF7A72;
  --primary-glow: rgba(255, 83, 73, 0.15);
  --secondary: #1a1a1a;
  --accent: #00D4AA;
  --text-primary: #1a1a1a;
  --text-secondary: #64748b;
  --text-tertiary: #94a3b8;
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-dark: #0a0a0a;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --border-light: #f1f5f9;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.5rem;
  --text-6xl: 4.5rem;
  --leading-tight: 1.1;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.8;
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.05em;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 24px 60px rgba(0,0,0,0.16);
  --shadow-glow: 0 0 40px var(--primary-glow);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --- Scroll Progress Bar --- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  z-index: 10000;
  transition: none;
}

/* --- Navigation --- */
nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0 var(--space-xl);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

nav.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 1px 8px rgba(0,0,0,0.04);
}

.nav-container {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo img {
  height: 36px;
  width: auto;
}

.logo-text {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--secondary);
  letter-spacing: var(--tracking-tight);
}

.nav-links {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: var(--text-sm);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast), background var(--duration-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--bg-light);
}

.nav-links .nav-cta {
  color: var(--bg-white);
  background: var(--primary);
  font-weight: 600;
  margin-left: var(--space-sm);
}

.nav-links .nav-cta:hover {
  background: var(--primary-dark);
  color: var(--bg-white);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  padding: 0.5rem;
  z-index: 1001;
}

.mobile-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--secondary);
  margin: 5px 0;
  border-radius: 2px;
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-fast);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}
.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 40%, #16213e 70%, #0a0a0a 100%);
  color: var(--bg-white);
  padding: var(--space-4xl) var(--space-xl);
  overflow: hidden;
  text-align: center;
}

/* Animated mesh background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 20% 40%, rgba(255, 83, 73, 0.18) 0%, transparent 70%),
    radial-gradient(ellipse 500px 500px at 80% 20%, rgba(0, 212, 170, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 400px 300px at 60% 80%, rgba(255, 122, 114, 0.1) 0%, transparent 70%);
  animation: meshMove 12s ease-in-out infinite alternate;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle 1px at 15% 25%, rgba(255,255,255,0.15) 0%, transparent 1px),
    radial-gradient(circle 1px at 45% 65%, rgba(255,255,255,0.1) 0%, transparent 1px),
    radial-gradient(circle 1px at 75% 35%, rgba(255,255,255,0.12) 0%, transparent 1px),
    radial-gradient(circle 1px at 85% 75%, rgba(255,255,255,0.08) 0%, transparent 1px),
    radial-gradient(circle 1px at 35% 85%, rgba(255,255,255,0.1) 0%, transparent 1px);
  pointer-events: none;
}

@keyframes meshMove {
  0% { transform: scale(1) translate(0, 0); }
  100% { transform: scale(1.05) translate(-20px, 10px); }
}

.hero-content {
  max-width: 820px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-xl);
  backdrop-filter: blur(8px);
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: var(--text-5xl);
  font-weight: 800;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-lg);
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--primary-light), var(--primary), #ff8a65);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .subtitle {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.65);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  line-height: var(--leading-relaxed);
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--bg-white);
  box-shadow: 0 2px 12px rgba(255, 83, 73, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255, 83, 73, 0.4);
}

.btn-secondary {
  background: rgba(255,255,255,0.06);
  color: var(--bg-white);
  border: 1px solid rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.25);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: var(--bg-white);
  transform: translateY(-2px);
}

.btn svg {
  width: 16px;
  height: 16px;
}

/* --- Container / Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-5xl) 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-3xl);
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--primary);
  margin-bottom: var(--space-md);
}

.section-header h2 {
  font-size: var(--text-4xl);
  font-weight: 800;
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  color: var(--secondary);
  margin-bottom: var(--space-md);
}

.section-header p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* --- Services Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

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

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255,83,73,0.08), rgba(255,83,73,0.04));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  color: var(--primary);
}

.service-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--primary);
  stroke-width: 1.5;
  fill: none;
}

.service-card h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-sm);
  letter-spacing: var(--tracking-tight);
}

.service-card > p {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-lg);
  font-size: var(--text-sm);
}

.service-card ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.service-card li {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  padding-left: 1.5rem;
  position: relative;
}

.service-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.6;
}

/* --- Stats Section --- */
.stats-section {
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e);
  color: var(--bg-white);
  padding: var(--space-4xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.stat-item {
  padding: var(--space-xl);
}

.stat-number {
  font-size: var(--text-5xl);
  font-weight: 800;
  letter-spacing: var(--tracking-tight);
  line-height: 1;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--bg-white), rgba(255,255,255,0.7));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* --- Methodology Preview --- */
.methodology-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.methodology-step {
  position: relative;
  padding: var(--space-xl);
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-out);
}

.methodology-step:hover {
  background: var(--bg-white);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.step-number {
  font-size: var(--text-5xl);
  font-weight: 900;
  color: var(--primary);
  opacity: 0.15;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.methodology-step h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-xs);
}

.methodology-step p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* --- CTA Section --- */
.cta-section {
  background: var(--bg-light);
  padding: var(--space-5xl) var(--space-xl);
  text-align: center;
}

.cta-content {
  max-width: 640px;
  margin: 0 auto;
}

.cta-section h2 {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--secondary);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-md);
}

.cta-section p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-2xl);
}

.cta-dark {
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e);
  color: var(--bg-white);
}

.cta-dark h2 {
  color: var(--bg-white);
}

.cta-dark p {
  color: rgba(255,255,255,0.6);
}

/* --- Footer --- */
footer {
  background: var(--bg-dark);
  color: var(--bg-white);
  padding: var(--space-4xl) 0 var(--space-2xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand p {
  color: rgba(255,255,255,0.45);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-top: var(--space-md);
  max-width: 320px;
}

.footer-brand .logo {
  margin-bottom: var(--space-sm);
}

.footer-col h4 {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--space-lg);
}

.footer-col a {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: var(--text-sm);
  padding: 0.3rem 0;
  transition: color var(--duration-fast);
}

.footer-col a:hover {
  color: var(--bg-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.3);
}

/* --- Floating CTA --- */
.floating-cta {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: 900;
  opacity: 0;
  transform: translateY(20px) scale(0.9);
  transition: all var(--duration-normal) var(--ease-out);
  pointer-events: none;
}

.floating-cta.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.floating-cta a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary);
  color: var(--bg-white);
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-sm);
  box-shadow: 0 8px 32px rgba(255, 83, 73, 0.35);
  transition: all var(--duration-normal) var(--ease-out);
}

.floating-cta a:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(255, 83, 73, 0.45);
}

.floating-cta svg {
  width: 16px;
  height: 16px;
}

/* --- Scroll Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .methodology-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.5rem;
    --nav-height: 64px;
  }

  .hero {
    min-height: 70vh;
    padding: var(--space-3xl) var(--space-lg);
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  .container {
    padding: 0 var(--space-lg);
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  /* Mobile Nav */
  .mobile-menu-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: var(--space-2xl);
    gap: var(--space-sm);
    transform: translateX(-100%);
    transition: transform var(--duration-normal) var(--ease-out);
  }

  .nav-links.active {
    transform: translateX(0);
  }

  .nav-links a {
    font-size: var(--text-lg);
    padding: 0.75rem 1.5rem;
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 480px) {
  :root {
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
  }

  .stat-number {
    font-size: var(--text-3xl);
  }
}

/* --- Page Header (sub-pages) --- */
.page-header {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 40%, #16213e 70%, #0a0a0a 100%);
  color: var(--bg-white);
  padding: var(--space-5xl) var(--space-xl) var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 20% 40%, rgba(255, 83, 73, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 500px 500px at 80% 20%, rgba(0, 212, 170, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.page-header .container,
.page-header-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-header h1 {
  font-size: var(--text-4xl);
  font-weight: 800;
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-md);
}

.page-header p {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.6);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--leading-relaxed);
}

/* --- Section Alt (alternate bg) --- */
.section-alt {
  background: var(--bg-light);
}

/* --- Service Sections (services page) --- */
.service-section {
  padding: var(--space-3xl) 0;
  border-bottom: 1px solid var(--border-light);
}

.service-section:last-of-type {
  border-bottom: none;
}

.service-header {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.service-header .service-icon {
  margin-bottom: 0;
  flex-shrink: 0;
}

.service-header h2 {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--secondary);
  letter-spacing: var(--tracking-tight);
}

.service-intro {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-2xl);
  max-width: 800px;
}

.service-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.service-content-secondary {
  margin-bottom: var(--space-2xl);
}

.content-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: box-shadow var(--duration-normal) var(--ease-out);
}

.content-block:hover {
  box-shadow: var(--shadow-md);
}

.content-block h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-sm);
}

.content-block > p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-md);
  line-height: var(--leading-relaxed);
}

.content-block ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.content-block li {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  padding-left: 1.5rem;
  position: relative;
  line-height: var(--leading-relaxed);
}

.content-block li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.6;
}

/* Tech Stack */
.tech-stack {
  margin-top: var(--space-xl);
}

.tech-stack h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-md);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tech-tag {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--primary);
  background: rgba(255, 83, 73, 0.06);
  border: 1px solid rgba(255, 83, 73, 0.15);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast);
}

.tech-tag:hover {
  background: rgba(255, 83, 73, 0.12);
  border-color: rgba(255, 83, 73, 0.3);
}

/* --- CTA Button (sub-pages) --- */
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  background: var(--primary);
  color: var(--bg-white);
  box-shadow: 0 2px 12px rgba(255, 83, 73, 0.3);
  transition: all var(--duration-normal) var(--ease-out);
  text-decoration: none;
}

.cta-button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255, 83, 73, 0.4);
}

/* --- CTA Box (contact page) --- */
.cta-box {
  margin-top: var(--space-3xl);
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e);
  color: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  text-align: center;
}

.cta-box h2 {
  font-size: var(--text-3xl);
  font-weight: 800;
  margin-bottom: var(--space-sm);
}

.cta-box p {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-lg);
  margin-bottom: var(--space-xl);
}

/* --- About Page: Mission --- */
.mission-content {
  max-width: 800px;
  margin: 0 auto;
}

.mission-content p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-lg);
}

/* --- About Page: Timeline --- */
.timeline {
  position: relative;
  padding-left: 60px;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--primary-light), var(--border));
}

.timeline-step {
  position: relative;
  margin-bottom: var(--space-2xl);
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
}

.timeline-step .step-number {
  position: absolute;
  left: -60px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-white);
  border: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: 800;
  color: var(--primary);
  z-index: 1;
  opacity: 1;
  line-height: 1;
  margin-bottom: 0;
}

.section-alt .timeline-step .step-number {
  background: var(--bg-light);
}

.step-content {
  flex: 1;
}

.step-content h4 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-xs);
}

.step-content p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* --- About Page: Values Grid --- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--duration-normal) var(--ease-out);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.value-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255,83,73,0.08), rgba(255,83,73,0.04));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  color: var(--primary);
}

.value-icon svg {
  stroke: var(--primary);
}

.value-card h4 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-sm);
}

.value-card p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* --- About Page: Differentiators --- */
.differentiators {
  max-width: 800px;
  margin: 0 auto;
}

.differentiators h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-xl);
}

.differentiators-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.differentiators-list li {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  padding-left: var(--space-lg);
  position: relative;
}

.differentiators-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.differentiators-list li strong {
  color: var(--secondary);
}

/* --- About Page: AI Approach --- */
.ai-approach > p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-2xl);
  max-width: 800px;
}

.approach-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.approach-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--duration-normal) var(--ease-out);
}

.approach-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.approach-item h4 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-sm);
}

.approach-item p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* --- Contact Page: Grid --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.contact-card,
.contact-details {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}

.contact-card h2,
.contact-details h2 {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: var(--space-xl);
}

.contact-details > p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-md);
}

.contact-method {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  margin-bottom: var(--space-xl);
}

.contact-method-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255,83,73,0.08), rgba(255,83,73,0.04));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
}

.contact-method-icon svg {
  stroke: var(--primary);
}

.contact-method h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-xs);
}

.contact-method p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.contact-method a {
  color: var(--primary);
  font-weight: 500;
}

.contact-method a:hover {
  text-decoration: underline;
}

.response-time {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.response-time-icon {
  flex-shrink: 0;
  color: var(--primary);
}

.response-time-icon svg {
  stroke: var(--primary);
}

.response-time p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.response-time strong {
  color: var(--secondary);
}

.engagement-types {
  margin-top: var(--space-lg);
}

.engagement-types h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: var(--space-md);
}

.engagement-types ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.engagement-types li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.engagement-types li svg {
  flex-shrink: 0;
  stroke: var(--primary);
}

/* --- Footer variants (about/contact pages use different structure) --- */
.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-nav h4,
.footer-contact h4 {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--space-lg);
}

.footer-nav ul,
.footer-contact ul {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.footer-nav a,
.footer-contact a {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: var(--text-sm);
  padding: 0.3rem 0;
  transition: color var(--duration-fast);
}

.footer-nav a:hover,
.footer-contact a:hover {
  color: var(--bg-white);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.footer-links a {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: var(--text-sm);
  padding: 0.3rem 0;
  transition: color var(--duration-fast);
}

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

.footer-tagline {
  color: rgba(255,255,255,0.45);
  font-size: var(--text-sm);
  margin-top: var(--space-md);
}

.footer-logo .logo-text {
  color: #fff;
}

.copyright {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.3);
}

/* --- Responsive additions for sub-pages --- */
@media (max-width: 1024px) {
  .approach-items {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .service-content {
    grid-template-columns: 1fr;
  }
  .values-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .approach-items {
    grid-template-columns: 1fr;
  }
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .timeline {
    padding-left: 50px;
  }
  .timeline::before {
    left: 18px;
  }
  .timeline-step .step-number {
    left: -50px;
    width: 36px;
    height: 36px;
    font-size: var(--text-xs);
  }
}

/* --- Utility Classes --- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}