/* ========================================
   MIRABYTE Corporate Website Styles
   Modern, Professional Design
   ======================================== */

/* CSS Variables - Theme Configuration */
:root {
  /* Primary Colors - Deep Ocean Blue */
  --primary-900: #0a1628;
  --primary-800: #0f2744;
  --primary-700: #153660;
  --primary-600: #1a467c;
  --primary-500: #205598;
  --primary-400: #3d7bc4;
  --primary-300: #6a9ed6;
  --primary-200: #a3c4e8;
  --primary-100: #d1e2f4;
  --primary-50: #e8f1fa;

  /* Accent Colors - Electric Cyan */
  --accent-500: #00d4ff;
  --accent-400: #33ddff;
  --accent-300: #66e5ff;
  --accent-glow: rgba(0, 212, 255, 0.3);

  /* Secondary - Warm Orange */
  --secondary-500: #ff6b35;
  --secondary-400: #ff8559;
  --secondary-300: #ffa07d;

  /* Neutral Colors */
  --neutral-900: #0d1117;
  --neutral-800: #161b22;
  --neutral-700: #21262d;
  --neutral-600: #30363d;
  --neutral-500: #484f58;
  --neutral-400: #6e7681;
  --neutral-300: #8b949e;
  --neutral-200: #c9d1d9;
  --neutral-100: #e6edf3;
  --neutral-50: #f0f6fc;
  --white: #ffffff;

  /* Typography */
  --font-display: 'Outfit', 'Pretendard', sans-serif;
  --font-body: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* 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;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 40px var(--accent-glow);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: #ffffff;
  color: #1e3a5f;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
  font-size: 1.1rem;
  color: #3d5a80;
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-lg) 0;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid #e2e8f0;
  padding: var(--space-md) 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent-500), var(--primary-400));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  color: #64748b;
  position: relative;
  padding: var(--space-sm) 0;
}

.navbar.scrolled .nav-links a {
  color: #475569;
}

.navbar.scrolled .logo {
  color: #1e293b;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-500);
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
}

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

.nav-cta {
  background: linear-gradient(135deg, var(--accent-500), var(--primary-400));
  color: var(--neutral-900) !important;
  padding: var(--space-sm) var(--space-lg) !important;
  border-radius: var(--radius-full);
  font-weight: 600 !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.nav-cta::after {
  display: none !important;
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all var(--transition-fast);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(8, 145, 178, 0.1), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(0, 212, 255, 0.08), transparent),
    radial-gradient(ellipse 50% 30% at 20% 80%, rgba(8, 145, 178, 0.05), transparent);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(8, 145, 178, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 145, 178, 0.08) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

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

.hero-text {
  animation: fadeInUp 1s ease-out;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(0, 119, 182, 0.1);
  border: 1px solid rgba(0, 119, 182, 0.3);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: #0077b6;
  margin-bottom: var(--space-xl);
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: #0077b6;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero h1 {
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, #0a1628, #1e3a5f);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h1 span {
  background: linear-gradient(135deg, #0077b6, #00b4d8);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  color: #3d5a80;
  margin-bottom: var(--space-2xl);
  max-width: 540px;
}

.hero-buttons {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  animation: fadeInRight 1s ease-out 0.3s both;
}

.hero-card {
  background: linear-gradient(135deg, var(--neutral-800), var(--neutral-900));
  border: 1px solid var(--neutral-700);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-500), transparent);
}

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

.stat-item {
  text-align: center;
  padding: var(--space-lg);
  background: rgba(0, 212, 255, 0.05);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 212, 255, 0.1);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent-400);
  display: block;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--neutral-400);
  margin-top: var(--space-xs);
}

/* Floating Elements */
.floating-element {
  position: absolute;
  animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
  top: 20%;
  right: -5%;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, rgba(8, 145, 178, 0.3), transparent);
  border-radius: 50%;
  filter: blur(40px);
}

.floating-element:nth-child(2) {
  bottom: 30%;
  left: -10%;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, rgba(8, 145, 178, 0.2), transparent);
  border-radius: 50%;
  filter: blur(60px);
  animation-delay: -2s;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-500), var(--primary-400));
  color: var(--neutral-900);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: transparent;
  border: 1px solid #0077b6;
  color: #0077b6;
}

.btn-secondary:hover {
  border-color: #023e8a;
  color: #023e8a;
  background: rgba(0, 119, 182, 0.05);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* ========================================
   SECTIONS
   ======================================== */
.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.section-badge {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-400);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.section-title {
  margin-bottom: var(--space-lg);
}

.section-description {
  font-size: 1.1rem;
  color: #3d5a80;
}

.section-title {
  color: #0a1628;
}

.section-badge {
  background: rgba(8, 145, 178, 0.1);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
}

/* ========================================
   SERVICES SECTION
   ======================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.service-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-500), var(--primary-400));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: #0891b2;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1), 0 0 30px rgba(8, 145, 178, 0.15);
}

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

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(8, 145, 178, 0.15), rgba(8, 145, 178, 0.05));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
}

.service-card h3 {
  margin-bottom: var(--space-md);
  color: #0a1628;
}

.service-card p {
  color: #3d5a80;
  line-height: 1.7;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  color: #0077b6;
  font-weight: 500;
}

.service-link:hover {
  gap: var(--space-md);
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image-main {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.about-image-overlay {
  position: absolute;
  bottom: -30px;
  right: -30px;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--primary-500);
}

.overlay-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-400);
}

.overlay-text {
  color: var(--neutral-200);
  font-size: 0.875rem;
}

.about-text h2 {
  margin-bottom: var(--space-lg);
  color: #0a1628;
}

.about-text > p {
  margin-bottom: var(--space-xl);
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: rgba(0, 119, 182, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #0077b6;
}

.feature-text h4 {
  font-size: 1rem;
  margin-bottom: var(--space-xs);
  color: #0a1628;
}

.feature-text p {
  font-size: 0.875rem;
  color: #3d5a80;
}

/* ========================================
   TECH STACK SECTION
   ======================================== */
.tech-section {
  background: #f8fafc;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-lg);
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.tech-item:hover {
  border-color: #0891b2;
  transform: translateY(-5px);
}

.tech-item img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.tech-item span {
  font-weight: 500;
  color: #475569;
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
  background: linear-gradient(135deg, #0891b2, #0e7490);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 30% 50%, rgba(255, 255, 255, 0.1), transparent 50%),
    radial-gradient(ellipse at 70% 50%, rgba(255, 255, 255, 0.05), transparent 50%);
}

.cta-content h2 {
  color: #ffffff;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.9);
}

.cta-content {
  position: relative;
  text-align: center;
  padding: var(--space-4xl) 0;
}

.cta-content h2 {
  margin-bottom: var(--space-lg);
}

.cta-content p {
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  font-size: 1.1rem;
}

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

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background: var(--neutral-900);
  border-top: 1px solid var(--neutral-800);
  padding: var(--space-4xl) 0 var(--space-xl);
}

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

.footer-brand {
  max-width: 300px;
}

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

.footer-brand p {
  color: var(--neutral-400);
  margin-bottom: var(--space-xl);
}

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

.social-link {
  width: 40px;
  height: 40px;
  background: var(--neutral-800);
  border: 1px solid var(--neutral-700);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neutral-400);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--accent-500);
  border-color: var(--accent-500);
  color: var(--neutral-900);
}

.footer-column h4 {
  font-size: 1rem;
  color: var(--white);
  margin-bottom: var(--space-lg);
}

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

.footer-column li {
  margin-bottom: var(--space-md);
}

.footer-column a {
  color: var(--neutral-400);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--accent-400);
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--neutral-800);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--neutral-500);
}

.footer-legal {
  display: flex;
  gap: var(--space-xl);
}

.footer-legal a {
  font-size: 0.875rem;
  color: var(--neutral-500);
}

.footer-legal a:hover {
  color: var(--accent-400);
}

/* ========================================
   CONTACT PAGE
   ======================================== */
.contact-section {
  padding-top: 120px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-4xl);
}

.contact-info h2 {
  margin-bottom: var(--space-lg);
  color: #0a1628;
}

.contact-info > p {
  margin-bottom: var(--space-2xl);
}

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

.contact-item {
  display: flex;
  gap: var(--space-lg);
}

.contact-item-icon {
  width: 50px;
  height: 50px;
  background: rgba(0, 119, 182, 0.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0077b6;
  flex-shrink: 0;
}

.contact-item-text h4 {
  color: #0a1628;
  margin-bottom: var(--space-xs);
}

.contact-item-text p {
  color: #3d5a80;
  font-size: 0.9rem;
}

.contact-form-wrapper {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

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

.form-group label {
  font-weight: 500;
  color: #374151;
}

.form-group input,
.form-group textarea,
.form-group select {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  color: #1e293b;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: #0891b2;
  background: #ffffff;
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

/* ========================================
   PAGE HEADERS
   ======================================== */
.page-header {
  padding: 160px 0 80px;
  background: linear-gradient(180deg, var(--primary-900), var(--neutral-900));
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 50% 50% at 50% 0%, rgba(0, 212, 255, 0.1), transparent);
}

.page-header .container {
  position: relative;
}

.page-header h1 {
  margin-bottom: var(--space-lg);
  color: #ffffff;
}

.page-header p {
  font-size: 1.25rem;
  max-width: 600px;
  color: rgba(255, 255, 255, 0.85);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  font-size: 0.9rem;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

.breadcrumb a:hover {
  color: #5eead4;
}

.breadcrumb span {
  color: rgba(255, 255, 255, 0.5);
}

.breadcrumb .current {
  color: #ffffff;
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

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

/* Scroll Animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-description {
    margin: 0 auto var(--space-2xl);
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-visual {
    max-width: 500px;
    margin: 0 auto;
  }

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

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

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-xl);
    gap: var(--space-lg);
    border-bottom: 1px solid #e2e8f0;
  }
  
  .nav-links a {
    color: #475569;
  }
  
  .mobile-menu-btn span {
    background: #1e293b;
  }

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

  .mobile-menu-btn {
    display: flex;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

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

/* ========================================
   UTILITIES
   ======================================== */
.text-gradient {
  background: linear-gradient(135deg, var(--accent-500), var(--accent-300));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-md); }
.mb-2 { margin-bottom: var(--space-lg); }
.mb-3 { margin-bottom: var(--space-xl); }
.mb-4 { margin-bottom: var(--space-2xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-md); }
.mt-2 { margin-top: var(--space-lg); }
.mt-3 { margin-top: var(--space-xl); }
.mt-4 { margin-top: var(--space-2xl); }