/* Quetzal Color Palette with Accessibility Compliant Contrast */
:root {
  /* Quetzal Brand Colors */
  --ql-green: #2A856C;     /* Primary green */
  --ql-deep: #19785A;      /* Dark green for headings on white (5.42:1) */
  --ql-gold: #E2BD5A;      /* Accent gold (excellent on dark) */
  --ql-seafoam: #87B8A7;   /* Soft seafoam */
  --ql-mint: #75AB99;      /* Mid mint */

  /* Primary Brand Colors */
  --primary: var(--ql-green);
  --primary-light: var(--ql-seafoam);
  --primary-dark: var(--ql-deep);

  /* Secondary Colors */
  --secondary: var(--ql-gold);
  --secondary-light: #E8C570;
  --secondary-dark: #D4B04A;

  /* Supporting Colors */
  --accent: var(--ql-mint);
  --accent-light: var(--ql-seafoam);

  /* Neutral Colors - Dark Theme */
  --dark-bg: #0D1B14;          /* Very dark green-tinted background */
  --dark-bg-soft: #1A2B20;     /* Soft dark green */
  --dark-surface: #243530;     /* Surface with green tint */
  --dark-surface-hover: #2F4A40; /* Hover state */
  --dark-text: #ffffff;
  --dark-text-secondary: #B8CFC3; /* Soft green-tinted secondary text */
  --dark-border: #3A5A4C;      /* Green-tinted border */

  /* Neutral Colors - Light Theme */
  --light-bg: #ffffff;
  --light-bg-soft: #F7FBF9;    /* Very light green tint */
  --light-surface: #ffffff;
  --light-surface-hover: #EDF7F3; /* Light green hover */
  --light-text: var(--ql-deep); /* Use deep green for high contrast */
  --light-text-secondary: #456B5A; /* Medium green for secondary text */
  --light-border: #D1E7DC;     /* Light green border */

  /* Semantic Colors */
  --success: var(--ql-green);
  --warning: var(--ql-gold);
  --danger: #dc3545;
  --info: var(--ql-mint);

  /* Effects */
  --shadow-sm: 0 2px 4px rgba(25, 120, 90, 0.08);
  --shadow: 0 4px 12px rgba(25, 120, 90, 0.12);
  --shadow-lg: 0 8px 24px rgba(25, 120, 90, 0.16);
  --radius: 12px;
  --radius-lg: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Theme Variables */
[data-theme="dark"] {
  --bg: var(--dark-bg);
  --bg-soft: var(--dark-bg-soft);
  --surface: var(--dark-surface);
  --surface-hover: var(--dark-surface-hover);
  --text: var(--dark-text);
  --text-secondary: var(--dark-text-secondary);
  --border: var(--dark-border);
  --header-bg: rgba(26, 26, 26, 0.8);
}

[data-theme="light"] {
  --bg: var(--light-bg);
  --bg-soft: var(--light-bg-soft);
  --surface: var(--light-surface);
  --surface-hover: var(--light-surface-hover);
  --text: var(--light-text);
  --text-secondary: var(--light-text-secondary);
  --border: var(--light-border);
  --header-bg: rgba(255, 255, 255, 0.8);
}

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

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

body {
  font-family: var(--sans);
  background-color: var(--bg);
  color: var(--text);
  transition: background-color 0.3s ease, color 0.3s ease;
  line-height: 1.6;
  font-size: 16px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

a:hover {
  color: var(--primary-light);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.1;
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  margin-bottom: 0.75rem;
}

.section-lead {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 3rem;
}

.highlight {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  border: 2px solid var(--primary);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 214, 160, 0.4);
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

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

.btn.secondary:hover {
  background: var(--surface-hover);
  border-color: var(--primary);
  color: var(--primary);
}

.btn.large {
  padding: 18px 36px;
  font-size: 1.125rem;
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
}

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

/* Header */
.nav-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1rem 0;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text);
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--ql-green), var(--ql-gold));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(42, 133, 108, 0.3);
}

.logo-mark::before {
  content: "Q";
}

.main-nav {
  display: flex;
  gap: 2rem;
}

.main-nav a {
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.main-nav a:hover {
  color: var(--primary);
  background: var(--surface);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-btn, .menu-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 8px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
}

.theme-btn:hover, .menu-btn:hover {
  background: var(--surface-hover);
  color: var(--primary);
}

.menu-btn {
  display: none;
}

/* Hero Section */
.hero {
  padding: 6rem 0;
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-soft) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(42, 133, 108, 0.08) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(226, 189, 90, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

@media (min-width: 992px) {
  .hero .container {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.badge {
  display: inline-block;
  background: linear-gradient(135deg, rgba(42, 133, 108, 0.1), rgba(226, 189, 90, 0.1));
  border: 1px solid var(--ql-green);
  color: var(--ql-deep);
  border-radius: 50px;
  padding: 10px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 2rem;
}

.lead {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin: 2rem 0;
  line-height: 1.7;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 3rem 0;
}

.stat {
  text-align: center;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-visual .card {
  min-height: 100%;
  background: linear-gradient(135deg, var(--surface), var(--surface-hover));
}

.hero-visual ul {
  list-style: none;
  padding: 0;
}

.hero-visual li {
  margin-bottom: 1rem;
  padding-left: 2rem;
  position: relative;
  color: var(--text-secondary);
}

.hero-visual li::before {
  content: '✓';
  color: var(--primary);
  position: absolute;
  left: 0;
  font-weight: bold;
  font-size: 1.2rem;
}

/* Services Section */
.services-section {
  padding: 6rem 0;
  background: var(--bg-soft);
}

.services-section h2 {
  text-align: center;
}

.service-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  display: block;
}

.service-cards .card p {
  color: var(--text-secondary);
  margin-top: 1rem;
}

/* Products Section */
.products-section {
  padding: 6rem 0;
}

.products-section h2 {
  text-align: center;
}

.product-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.product-cards .card {
  text-align: center;
  border: 2px solid var(--border);
}

.product-cards .card:hover {
  border-color: var(--primary);
}

.product-cards h3 {
  color: var(--primary);
  margin-bottom: 1rem;
}

.product-cards p {
  color: var(--text-secondary);
  margin: 1.5rem 0;
  min-height: 80px;
}

.price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary);
  background: linear-gradient(135deg, rgba(255, 184, 0, 0.1), rgba(6, 214, 160, 0.1));
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  display: inline-block;
  margin-top: 1rem;
}

/* About Section */
.about-section {
  padding: 6rem 0;
  background: var(--bg-soft);
}

.about-section h2 {
  text-align: center;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

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

.about-content ul {
  list-style: none;
  padding: 0;
}

.about-content li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.about-content li::before {
  content: "✓";
  color: var(--primary);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* Contact Section */
.contact-section {
  padding: 6rem 0;
  text-align: center;
  background: linear-gradient(135deg, var(--ql-deep), var(--ql-green));
  color: white;
}

.contact-section h2,
.contact-section .section-lead {
  color: white;
}

.contact-section .btn {
  margin-top: 2rem;
  background: var(--ql-gold);
  color: var(--ql-deep);
  border-color: var(--ql-gold);
  font-weight: 700;
}

.contact-section .btn:hover {
  background: var(--secondary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(226, 189, 90, 0.4);
}

/* Footer */
.footer {
  padding: 3rem 0;
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}

.footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer .logo {
  margin-bottom: 1rem;
}

.footer p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 991px) {
  .main-nav, .header-actions .btn {
    display: none;
  }

  .menu-btn {
    display: block;
  }

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

  .main-nav.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 24px;
    right: 24px;
    background: var(--surface);
    padding: 2rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 50;
  }

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

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

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

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-stats {
    margin: 2rem 0;
  }

  .stat {
    padding: 1rem;
  }
}