/* ============================================
   QutSur Landing Page - Premium Dark Design
   Inspired by usiriczman.com
   ============================================ */

/* ============================================
   CSS Variables - Design System
   ============================================ */
:root {
  /* Dark Theme Colors */
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --bg-elevated: #222222;

  /* Accent Colors - Quantum Inspired */
  --accent-primary: #00d4aa;
  --accent-secondary: #0099ff;
  --accent-tertiary: #a855f7;
  --accent-warm: #f97316;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #00d4aa 0%, #0099ff 50%, #a855f7 100%);
  --gradient-hero: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
  --gradient-card: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
  --gradient-glow: radial-gradient(ellipse at center, rgba(0,212,170,0.15) 0%, transparent 70%);

  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #b5b5b5;
  --text-muted: #707070;
  --text-accent: #00d4aa;

  /* Border Colors */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  --border-accent: rgba(0, 212, 170, 0.3);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Font Sizes - Fluid */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
  --text-4xl: clamp(2.5rem, 2rem + 3vw, 4rem);
  --text-5xl: clamp(3rem, 2.5rem + 4vw, 5rem);

  /* 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;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  /* Shadows & Glows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(0, 212, 170, 0.2);
  --shadow-glow-blue: 0 0 40px rgba(0, 153, 255, 0.2);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --transition-fast: 0.15s var(--ease-out);
  --transition-normal: 0.3s var(--ease-out);
  --transition-slow: 0.5s var(--ease-out);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

::selection {
  background-color: var(--accent-primary);
  color: var(--bg-primary);
}

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

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

a:hover {
  color: var(--accent-secondary);
}

ul {
  list-style: none;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--text-4xl);
  font-weight: 400;
  letter-spacing: -0.03em;
}

h2 {
  font-size: var(--text-3xl);
  font-weight: 400;
  letter-spacing: -0.025em;
}

h3 {
  font-size: var(--text-xl);
  font-weight: 500;
}

h4 {
  font-size: var(--text-lg);
  font-weight: 500;
}

p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* ============================================
   Layout
   ============================================ */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

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

section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(90%, 1200px);
  height: 1px;
  background: var(--border-subtle);
}

section:last-of-type::after {
  display: none;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  background: var(--accent-primary);
  color: var(--bg-primary);
  border-color: var(--accent-primary);
}

.btn-primary:hover {
  background: #00e6b8;
  border-color: #00e6b8;
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border-hover);
  color: var(--text-primary);
}

.btn-secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
}

.btn-lg {
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--text-base);
}

/* ============================================
   Navigation Header
   ============================================ */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-normal);
}

header.sticky {
  background: rgba(10, 10, 10, 0.95);
  border-bottom-color: var(--border-subtle);
}

nav {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.nav-brand .nav-logo {
  height: 36px;
  width: auto;
}

.nav-brand span {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-fast);
  border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav-links a {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  transition: width var(--transition-normal);
}

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

.nav-links a:hover::after {
  width: 100%;
}

.nav-links .nav-cta {
  background: var(--accent-primary);
  color: var(--bg-primary);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-weight: 500;
}

.nav-links .nav-cta::after {
  display: none;
}

.nav-links .nav-cta:hover {
  background: #00e6b8;
  color: var(--bg-primary);
  transform: translateY(-1px);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-hero);
  padding: 120px var(--space-xl) var(--space-5xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 40%, rgba(0, 212, 170, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(0, 153, 255, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 50% 30% at 50% 80%, rgba(168, 85, 247, 0.05) 0%, transparent 50%);
  animation: gradientShift 15s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-content {
  max-width: 900px;
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: var(--text-primary);
  font-size: var(--text-5xl);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: var(--space-xl);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s var(--ease-out) 0.2s forwards;
}

.hero h1 .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .subheadline {
  color: var(--text-secondary);
  font-size: var(--text-xl);
  font-weight: 400;
  margin-bottom: var(--space-3xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s var(--ease-out) 0.4s forwards;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s var(--ease-out) 0.6s forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-3xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-out) 1s forwards;
}

.scroll-indicator::after {
  content: '';
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.5; transform: scaleY(0.8); }
}

/* ============================================
   Three Pillars Section
   ============================================ */
.pillars {
  background: var(--bg-primary);
}

.pillars h2 {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

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

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

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.pillar-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.pillar-card:hover::before {
  transform: scaleX(1);
}

.pillar-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 170, 0.1);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  color: var(--accent-primary);
  transition: all var(--transition-normal);
}

.pillar-card:hover .pillar-icon {
  background: rgba(0, 212, 170, 0.15);
  transform: scale(1.05);
}

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

.pillar-card h3 {
  margin-bottom: var(--space-sm);
}

.pillar-headline {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--accent-primary);
  margin-bottom: var(--space-md);
}

.pillar-description {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.pillar-points {
  margin-bottom: var(--space-xl);
}

.pillar-points li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

.pillar-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--accent-primary);
  border-radius: 50%;
  opacity: 0.7;
}

.pillar-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--accent-primary);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.pillar-cta:hover {
  color: var(--accent-secondary);
  gap: var(--space-md);
}

/* Collapsible Pillar Cards */
.pillar-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: var(--space-sm) var(--space-md);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-top: var(--space-sm);
}

.pillar-toggle:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.pillar-toggle .toggle-icon {
  transition: transform var(--transition-normal);
}

.pillar-toggle[aria-expanded="true"] .toggle-icon {
  transform: rotate(180deg);
}

.pillar-toggle[aria-expanded="true"] .toggle-text::after {
  content: 'Show less';
}

.pillar-toggle[aria-expanded="true"] .toggle-text {
  font-size: 0;
}

.pillar-toggle[aria-expanded="true"] .toggle-text::after {
  font-size: var(--text-xs);
}

.pillar-details {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition-normal);
  margin-top: 0;
}

.pillar-details-inner {
  overflow: hidden;
}

.pillar-card.expanded .pillar-details {
  grid-template-rows: 1fr;
  margin-top: var(--space-md);
}

.pillar-details-inner .pillar-description {
  margin-bottom: var(--space-lg);
}

.pillar-details-inner .pillar-points {
  margin-bottom: var(--space-lg);
}

/* ============================================
   Who This Is For Section
   ============================================ */
.who-section {
  background: var(--bg-secondary);
}

.who-section h2 {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-intro {
  text-align: center;
  color: var(--text-secondary);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto var(--space-3xl);
}

.who-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

.who-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

.who-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.who-icon {
  color: var(--accent-primary);
  font-size: var(--text-lg);
  font-weight: 500;
  flex-shrink: 0;
}

.who-item p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin: 0;
  line-height: 1.6;
}

/* ============================================
   About Section
   ============================================ */
.about-section {
  background: var(--bg-primary);
}

.about-section h2 {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-lead {
  font-size: var(--text-lg);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.about-content > p {
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.about-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.about-point {
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

.about-point:hover {
  border-color: var(--border-hover);
}

.about-point h4 {
  color: var(--accent-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.about-point p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin: 0;
  line-height: 1.6;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
  background: var(--bg-secondary);
}

.contact h2 {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
}

.contact-info p {
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
}

.contact-info strong {
  color: var(--text-primary);
}

.contact-list {
  margin: var(--space-md) 0 var(--space-xl);
}

.contact-list li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.contact-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--accent-primary);
  border-radius: 50%;
}

.contact-details {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-subtle);
}

.contact-note {
  color: var(--text-muted);
  font-size: var(--text-xs);
  margin-top: var(--space-md);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-form input,
.contact-form textarea {
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-muted);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.contact-form textarea {
  resize: vertical;
  min-height: 140px;
}

.contact-form .btn {
  align-self: flex-start;
}

/* ============================================
   Footer
   ============================================ */
footer {
  background: var(--bg-primary);
  padding: var(--space-3xl) 0 var(--space-2xl);
  border-top: 1px solid var(--border-subtle);
}

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

.footer-simple .footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.footer-simple .footer-brand span {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.footer-logo {
  height: 32px;
  width: auto;
}

.footer-tagline {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-lg);
}

.footer-copy {
  color: var(--text-muted);
  font-size: var(--text-xs);
  margin: 0;
}

/* ============================================
   Animations & Scroll Reveal
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s var(--ease-out);
}

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

.pillars-grid .pillar-card,
.who-grid .who-item,
.about-points .about-point {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s var(--ease-out);
}

.pillars-grid .pillar-card:nth-child(1),
.who-grid .who-item:nth-child(1),
.about-points .about-point:nth-child(1) { transition-delay: 0s; }

.pillars-grid .pillar-card:nth-child(2),
.who-grid .who-item:nth-child(2),
.about-points .about-point:nth-child(2) { transition-delay: 0.1s; }

.pillars-grid .pillar-card:nth-child(3),
.who-grid .who-item:nth-child(3),
.about-points .about-point:nth-child(3) { transition-delay: 0.2s; }

.who-grid .who-item:nth-child(4) { transition-delay: 0.3s; }

/* Cursor glow effect */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 212, 170, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1100px) {
  .pillars-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

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

  .about-points {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

@media (max-width: 768px) {
  :root {
    --space-4xl: 4rem;
    --space-5xl: 5rem;
  }

  section {
    padding: var(--space-4xl) 0;
  }

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

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    flex-direction: column;
    justify-content: center;
    padding: var(--space-2xl);
    gap: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    border-left: 1px solid var(--border-subtle);
  }

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

  .nav-links a {
    font-size: var(--text-lg);
  }

  .nav-links a::after {
    display: none;
  }

  .nav-links .nav-cta {
    width: 100%;
    text-align: center;
    padding: var(--space-md) var(--space-lg);
  }

  .hero {
    padding: 100px var(--space-lg) var(--space-4xl);
    min-height: auto;
  }

  .hero h1 {
    font-size: var(--text-3xl);
  }

  .hero .subheadline {
    font-size: var(--text-base);
  }

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

  .hero-cta .btn {
    width: 100%;
    max-width: 300px;
  }

  .scroll-indicator {
    display: none;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .contact-form .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .pillar-card,
  .proof-item,
  .cta-link {
    padding: var(--space-lg);
  }

  .btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--text-sm);
  }
}

@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;
  }
}