/* Xenix Website - Linear-inspired Dark Theme */

/* ============================================
   CSS Variables
   ============================================ */
:root {
  /* Colors */
  --bg-primary: #08090a;
  --bg-secondary: #0f1011;
  --bg-card: #131416;
  --bg-card-hover: #1a1c1e;

  --text-primary: #ffffff;
  --text-secondary: #a1a1a6;
  --text-tertiary: #6b6b70;

  --accent-purple: #8b5cf6;
  --accent-blue: #3b82f6;
  --accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 50%, #06b6d4 100%);

  --border-color: #1f2023;
  --border-light: #2a2c2f;

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

  /* Spacing */
  --container-width: 1200px;
  --section-padding: 120px;
  --card-radius: 16px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  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: 1.25rem;
}

p {
  color: var(--text-secondary);
}

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   Layout
   ============================================ */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header p {
  margin-top: 16px;
  font-size: 1.125rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(8, 9, 10, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-logo-text {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.5rem;
  font-weight: bold;
  font-style: italic;
  letter-spacing: -0.02em;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-logo-tagline {
  font-family: var(--font-family);
  font-size: 0.6rem;
  font-weight: 400;
  font-style: normal;
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
}

.nav-logo-tagline em {
  font-style: italic;
  color: var(--text-secondary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-normal);
}

/* Mobile navigation */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    flex-direction: column;
    padding: 40px 24px;
    gap: 24px;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
  }

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

  .nav-links a {
    font-size: 1.25rem;
  }

  .nav-cta {
    display: none;
  }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  font-family: inherit;
}

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

.btn-primary:hover {
  background: #e5e5e5;
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--text-tertiary);
}

.btn-gradient {
  background: var(--accent-gradient);
  color: var(--text-primary);
}

.btn-gradient:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-large {
  padding: 16px 32px;
  font-size: 1rem;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1000px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.hero-badge span {
  color: var(--accent-purple);
}

.hero h1 {
  margin-bottom: 24px;
}

.hero p {
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 32px;
  transition: all var(--transition-normal);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  border-radius: 12px;
  margin-bottom: 20px;
}

.card-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

.card h3 {
  margin-bottom: 12px;
}

.card p {
  font-size: 0.9375rem;
  line-height: 1.7;
}

.card-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(139, 92, 246, 0.1);
  color: var(--accent-purple);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 16px;
}

/* Card with Image */
.card-image {
  width: 100%;
  height: 180px;
  margin: -32px -32px 24px -32px;
  width: calc(100% + 64px);
  overflow: hidden;
  border-radius: var(--card-radius) var(--card-radius) 0 0;
  position: relative;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(8, 9, 10, 0.8) 100%);
  pointer-events: none;
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

@media (max-width: 768px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Solutions Section
   ============================================ */
.solutions-grid {
  display: grid;
  gap: 24px;
}

.solution-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 48px;
  transition: all var(--transition-normal);
}

.solution-card:hover {
  border-color: var(--border-light);
}

.solution-card:nth-child(even) {
  direction: rtl;
}

.solution-card:nth-child(even) > * {
  direction: ltr;
}

.solution-content h3 {
  margin-bottom: 16px;
}

.solution-content p {
  margin-bottom: 24px;
}

.solution-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.solution-features span {
  padding: 6px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.solution-visual {
  aspect-ratio: 4/3;
  background: var(--bg-secondary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  overflow: hidden;
  position: relative;
}

.solution-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.solution-card:hover .solution-visual img {
  transform: scale(1.05);
}

.solution-visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
  pointer-events: none;
}

.solution-visual-icon {
  width: 80px;
  height: 80px;
  background: var(--accent-gradient);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.solution-visual-icon svg {
  width: 40px;
  height: 40px;
  color: white;
}

@media (max-width: 900px) {
  .solution-card {
    grid-template-columns: 1fr;
    padding: 32px;
  }

  .solution-card:nth-child(even) {
    direction: ltr;
  }

  .solution-visual {
    order: -1;
  }
}

/* ============================================
   Features Grid
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Stats Section
   ============================================ */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 64px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

@media (max-width: 768px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   About Section
   ============================================ */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text h2 {
  margin-bottom: 24px;
}

.about-text p {
  margin-bottom: 16px;
  font-size: 1.0625rem;
}

.about-visual {
  aspect-ratio: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Contact Section
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.contact-info h2 {
  margin-bottom: 24px;
}

.contact-info > p {
  margin-bottom: 40px;
  font-size: 1.0625rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-item-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item-icon svg {
  width: 20px;
  height: 20px;
  color: var(--accent-purple);
}

.contact-item-text h4 {
  margin-bottom: 4px;
  font-size: 1rem;
}

.contact-item-text p {
  font-size: 0.9375rem;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 40px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-purple);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group select {
  cursor: pointer;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Footer
   ============================================ */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 64px 0 32px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 0.9375rem;
  max-width: 300px;
}

.footer-links h4 {
  margin-bottom: 20px;
  font-size: 0.875rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

.footer-bottom p {
  font-size: 0.875rem;
}

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* ============================================
   Page Header (for inner pages)
   ============================================ */
.page-header {
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 800px;
  height: 400px;
  background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.page-header h1 {
  position: relative;
  margin-bottom: 16px;
}

.page-header p {
  position: relative;
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
  text-align: center;
  padding: 100px 0;
}

.cta-section h2 {
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.125rem;
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============================================
   Utilities
   ============================================ */
.text-center {
  text-align: center;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mb-5 { margin-bottom: 48px; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }