/* ============================================
   APPQUORA WEBSITE - MAIN STYLESHEET
   ============================================ */

/* ============================================
   1. CSS CUSTOM PROPERTIES (VARIABLES)
   ============================================ */

:root {
  /* Colors */
  --bg-primary: #0A0F2C;
  --bg-secondary: #111827;
  --color-primary: #2563EB;
  --color-secondary: #06B6D4;
  --color-gradient: linear-gradient(135deg, #2563EB, #06B6D4);
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-tertiary: #64748B;
  
  /* Typography */
  --font-heading: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  
  /* Transitions */
  --transition: all 0.3s ease;
  --transition-fast: all 0.2s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --glow-blue: 0 0 30px rgba(37, 99, 235, 0.3);
  --glow-cyan: 0 0 30px rgba(6, 182, 212, 0.3);
  
  /* Z-index */
  --z-sticky: 100;
  --z-modal: 1000;
}

/* ============================================
   2. RESET & BASE STYLES
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 6px;
  transition: var(--transition);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-secondary);
  box-shadow: var(--glow-blue);
}

/* ============================================
   3. TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.5px;
}

h1 {
  font-size: clamp(2rem, 8vw, 4.5rem);
  background: var(--color-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: clamp(1.75rem, 5vw, 3rem);
  color: var(--text-primary);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: var(--text-primary);
}

h4 {
  font-size: 1.25rem;
  color: var(--text-primary);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
  line-height: 1.8;
}

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

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

code {
  font-family: var(--font-mono);
  background-color: var(--bg-secondary);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--color-secondary);
  font-size: 0.9rem;
}

/* ============================================
   4. BUTTONS & LINKS
   ============================================ */

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  text-decoration: none;
  letter-spacing: 0.5px;
  outline: none;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: var(--glow-blue);
}

.btn-primary:hover {
  background: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: var(--glow-cyan);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

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

.btn-outline:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================
   5. NAVIGATION & HEADER
   ============================================ */

header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(10, 15, 44, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(37, 99, 235, 0.2);
  transition: var(--transition);
}

header.scrolled {
  background: rgba(10, 15, 44, 0.95);
  box-shadow: var(--glow-blue);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-xl);
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -1px;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span:first-child {
  color: var(--text-primary);
}

.logo span:last-child {
  background: var(--color-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  position: relative;
  transition: var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gradient);
  transition: width 0.3s ease;
}

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

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

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

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 6px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(10px, 10px);
}

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   6. FOOTER
   ============================================ */

footer {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(37, 99, 235, 0.2);
  padding: var(--spacing-2xl) var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

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

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--color-primary);
  transform: translateX(4px);
  display: inline-block;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(37, 99, 235, 0.1);
  border-radius: 50%;
  font-size: 1.2rem;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(37, 99, 235, 0.2);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ============================================
   7. HERO SECTION
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: var(--spacing-xl) var(--spacing-xl) 0;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 1;
}

.hero-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: moveGrid 20s linear infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes moveGrid {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 50px); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(3rem, 10vw, 5rem);
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-2xl);
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
  cursor: pointer;
  z-index: 2;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

/* ============================================
   8. SECTIONS & CONTAINERS
   ============================================ */

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

section {
  padding: var(--spacing-2xl) var(--spacing-xl);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   9. CARDS & COMPONENTS
   ============================================ */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.card {
  background: rgba(17, 24, 39, 0.6);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.2) 0%, transparent 70%);
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}

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

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

.card-icon {
  width: 60px;
  height: 60px;
  background: var(--color-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: var(--spacing-md);
  transition: var(--transition);
}

.card:hover .card-icon {
  transform: rotate(10deg) scale(1.1);
}

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

.card p {
  margin-bottom: var(--spacing-md);
  font-size: 0.95rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  color: var(--color-primary);
  font-weight: 600;
  gap: 0.5rem;
  transition: var(--transition);
}

.card-link:hover {
  gap: 1rem;
  color: var(--color-secondary);
}

/* ============================================
   10. COUNTER SECTION
   ============================================ */

.counters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.counter-item {
  text-align: center;
  padding: var(--spacing-lg);
}

.counter-number {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  background: var(--color-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.counter-label {
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 600;
}

/* ============================================
   11. TESTIMONIALS
   ============================================ */

.testimonials-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.testimonial {
  background: rgba(17, 24, 39, 0.8);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  text-align: center;
  opacity: 0;
  position: absolute;
  width: 100%;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.testimonial.active {
  opacity: 1;
  position: relative;
  pointer-events: auto;
}

.testimonial-text {
  font-size: 1.1rem;
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--color-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: white;
}

.testimonial-author-info h4 {
  margin-bottom: 0;
  color: var(--text-primary);
}

.testimonial-role {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.testimonials-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-2xl);
}

.testimonial-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.3);
  cursor: pointer;
  transition: var(--transition);
}

.testimonial-dot.active {
  background: var(--color-primary);
  box-shadow: var(--glow-blue);
}

/* ============================================
   12. FORM STYLES
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
  width: 100%;
  padding: 0.875rem;
  border: 1px solid rgba(37, 99, 235, 0.3);
  border-radius: var(--radius-md);
  background: rgba(10, 15, 44, 0.5);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition);
}

input[type="text"]::placeholder,
input[type="email"]::placeholder,
input[type="tel"]::placeholder,
textarea::placeholder {
  color: var(--text-tertiary);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  background: rgba(10, 15, 44, 0.8);
  box-shadow: var(--glow-blue);
}

textarea {
  resize: vertical;
  min-height: 150px;
  font-family: var(--font-body);
}

.form-error {
  color: #EF4444;
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

.form-success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #86EFAC;
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

/* ============================================
   13. ANIMATIONS
   ============================================ */

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.6s ease forwards;
}

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

.fade-in-delay-1 { animation-delay: 0.1s; }
.fade-in-delay-2 { animation-delay: 0.2s; }
.fade-in-delay-3 { animation-delay: 0.3s; }
.fade-in-delay-4 { animation-delay: 0.4s; }
.fade-in-delay-5 { animation-delay: 0.5s; }
.fade-in-delay-6 { animation-delay: 0.6s; }

.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.glitch {
  position: relative;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  opacity: 0.8;
}

.glitch::before {
  animation: glitchLeft 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) infinite;
  color: var(--color-primary);
  z-index: -1;
}

.glitch::after {
  animation: glitchRight 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) infinite;
  color: var(--color-secondary);
  z-index: -2;
}

@keyframes glitchLeft {
  0% { clip-path: inset(40% 0 61% 0); transform: translate(-2px, -2px); }
  20% { clip-path: inset(92% 0 1% 0); transform: translate(2px, 2px); }
  40% { clip-path: inset(43% 0 1% 0); transform: translate(-2px, 2px); }
  60% { clip-path: inset(25% 0 58% 0); transform: translate(2px, -2px); }
  80% { clip-path: inset(54% 0 7% 0); transform: translate(-2px, -2px); }
  100% { clip-path: inset(58% 0 43% 0); transform: translate(2px, 2px); }
}

@keyframes glitchRight {
  0% { clip-path: inset(40% 0 61% 0); transform: translate(2px, 2px); }
  20% { clip-path: inset(92% 0 1% 0); transform: translate(-2px, -2px); }
  40% { clip-path: inset(43% 0 1% 0); transform: translate(2px, -2px); }
  60% { clip-path: inset(25% 0 58% 0); transform: translate(-2px, 2px); }
  80% { clip-path: inset(54% 0 7% 0); transform: translate(2px, 2px); }
  100% { clip-path: inset(58% 0 43% 0); transform: translate(-2px, -2px); }
}

/* Page Loading */
.page-preloader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.page-preloader.active {
  opacity: 1;
  pointer-events: auto;
}

.preloader-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(37, 99, 235, 0.2);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--color-gradient);
  width: 0%;
  z-index: 999;
  transition: width 0.1s linear;
  box-shadow: var(--glow-blue);
}

/* ============================================
   14. UTILITIES
   ============================================ */

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.hidden { display: none; }
.visible { display: block; }

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.w-full { width: 100%; }
.h-full { height: 100%; }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

/* ============================================
   15. RESPONSIVE DESIGN
   ============================================ */

/* Tablet (768px) */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
  }

  nav {
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 15, 44, 0.95);
    backdrop-filter: blur(10px);
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(37, 99, 235, 0.2);
    z-index: 99;
  }

  .nav-links.active {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    padding: var(--spacing-lg) var(--spacing-lg) 0;
  }

  .hero-cta {
    flex-direction: column;
  }

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

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

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

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .social-links {
    justify-content: center;
  }

  section {
    padding: var(--spacing-lg) var(--spacing-lg);
  }

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

/* Mobile (320px) */
@media (max-width: 480px) {
  :root {
    --spacing-lg: 1.5rem;
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.2rem; }

  nav {
    padding: var(--spacing-md) var(--spacing-md);
  }

  .logo {
    font-size: 1.25rem;
  }

  .hero {
    min-height: auto;
    padding: var(--spacing-lg) var(--spacing-md);
    padding-top: 100px;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

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

  .counter-number {
    font-size: 2rem;
  }

  .section-header {
    margin-bottom: var(--spacing-lg);
  }

  section {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .card {
    padding: var(--spacing-md);
  }

  .testimonial {
    padding: var(--spacing-lg);
  }

  .scroll-indicator {
    bottom: var(--spacing-md);
  }

  .footer-content {
    gap: var(--spacing-lg);
  }
}