/* ============================================
   Vexora - Premium Design System
   ============================================ */

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

:root {
  /* Color Palette - Ultra Premium Dark Mode */
  --color-bg-primary: #0a0a0f;
  --color-bg-secondary: #12121a;
  --color-bg-tertiary: #1a1a28;
  --color-accent-primary: #6366f1;
  /* Electric Indigo */
  --color-accent-secondary: #8b5cf6;
  /* Deep Purple */
  --color-accent-gold: #fbbf24;
  --color-text-primary: #ffffff;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;
  --color-border: #27272a;
  --color-success: #22c55e;
  --color-error: #ef4444;

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

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

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

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

body {
  font-family: var(--font-body);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

/* Typography Hierarchy */
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);
  margin-bottom: var(--space-md);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--space-sm);
}

p {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* Prevent any element from causing horizontal scroll */
* {
  max-width: 100%;
}

img,
video,
iframe {
  max-width: 100%;
  height: auto;
}

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

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

.section-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-base);
}

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

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.nav-logo:hover {
  color: var(--color-accent-primary);
}

.nav-menu {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--color-accent-primary);
}

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

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  text-decoration: none;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  color: var(--color-text-primary);
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

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

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

.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

/* Cards */
.card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.card-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Grid Systems */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
  color: var(--color-text-primary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  font-family: var(--font-body);
  background: var(--color-bg-secondary);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.form-error {
  color: var(--color-error);
  font-size: 0.875rem;
  margin-top: var(--space-xs);
}

.form-success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  color: var(--color-success);
  margin-top: var(--space-md);
  text-align: center;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.7;
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fade-in {
  animation: fadeIn 0.8s ease-out forwards;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-muted {
  color: var(--color-text-muted);
}

.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);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 5rem;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.1;
  margin-bottom: var(--space-md);
  animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
  animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.hero-visual {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  max-width: 1200px;
  opacity: 0.15;
  z-index: 1;
  pointer-events: none;
}

.hero-visual img {
  width: 100%;
  height: auto;
}

/* Footer */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl) 0;
  text-align: center;
}

.footer-content {
  color: var(--color-text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 60px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 60px);
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    transition: left var(--transition-base);
    overflow-y: auto;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-toggle {
    display: block;
  }

  .nav-link {
    font-size: 1.25rem;
    padding: var(--space-xs) var(--space-sm);
    min-height: 48px;
    display: flex;
    align-items: center;
  }

  .hero {
    min-height: 90vh;
    padding-top: 4rem;
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
  }

  .hero-visual {
    opacity: 0.08;
    max-width: 100%;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
  }

  .btn {
    width: 100%;
    max-width: 100%;
    justify-content: center;
  }

  .section {
    padding: var(--space-2xl) 0;
  }

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

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  h1 {
    font-size: 2.25rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  h2 {
    font-size: 1.875rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

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

  .form-input,
  .form-textarea {
    font-size: 16px;
    /* Prevents zoom on iOS */
    width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --space-3xl: 3rem;
    --space-4xl: 4rem;
  }

  .container {
    padding: 0 1rem;
    max-width: 100%;
  }

  .hero {
    min-height: 85vh;
    padding-top: 3rem;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero-title {
    font-size: 1.75rem;
    line-height: 1.2;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    line-height: 1.5;
  }

  .hero-visual {
    opacity: 0.05;
  }

  .btn-large {
    padding: 1rem 1.5rem;
    font-size: 1rem;
  }

  .card-icon {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.25rem;
  }

  .section-title {
    font-size: 1.5rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  .section-subtitle {
    font-size: 0.95rem;
    line-height: 1.6;
  }

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

  /* Better touch targets on mobile */
  .btn {
    min-height: 48px;
    padding: 1rem;
  }

  .nav-link {
    min-height: 48px;
  }

  .form-input,
  .form-textarea {
    min-height: 48px;
    padding: 1rem;
    width: 100%;
  }

  .grid {
    gap: var(--space-sm);
  }

  .card {
    padding: var(--space-sm);
  }
}

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

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

/* Accessibility */
@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;
  }
}

/* Focus States */
*:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}