/* ============================================
   COMERCIO UNIVERSAL M&L — Global Styles
   Design System: Dark Mode + Neon Accents
   ============================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* ── CSS Custom Properties ── */
:root {
  /* Colors — Dark Slate Titanium Palette */
  --bg-primary: #12181f;
  --bg-secondary: #1a222b;
  --bg-tertiary: #232d39;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --bg-glass: rgba(255, 255, 255, 0.06);
  --bg-glass-border: rgba(255, 255, 255, 0.12);

  /* Text */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-muted: #475569;

  /* Metallic & Chrome Accents */
  --neon-cyan: #00F0FF;
  --neon-magenta: #FF00E5;
  --neon-green: #00FF87;
  --neon-purple: #9d4edd;
  --neon-orange: #ff7b00;
  --chrome-silver: #e2e8f0;
  --chrome-metallic: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, #64748b 100%);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #ffffff 0%, var(--neon-cyan) 60%, var(--neon-magenta) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--chrome-silver), var(--neon-cyan));
  --gradient-accent: linear-gradient(135deg, #ffffff 0%, #94a3b8 100%);
  --gradient-dark: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);

  /* Glow Effects */
  --glow-cyan: 0 0 25px rgba(0, 240, 255, 0.4), 0 0 80px rgba(0, 240, 255, 0.15);
  --glow-magenta: 0 0 25px rgba(255, 0, 229, 0.4), 0 0 80px rgba(255, 0, 229, 0.15);
  --glow-silver: 0 0 25px rgba(255, 255, 255, 0.3), 0 0 60px rgba(255, 255, 255, 0.1);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.5rem;
  --fs-4xl: 3rem;
  --fs-5xl: 3.75rem;
  --fs-6xl: 4.5rem;

  /* 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;
  --space-5xl: 8rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.7);

  /* Layout */
  --container-max: 1200px;
  --container-wide: 1400px;
  --navbar-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--navbar-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
  min-height: 100vh;
}

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

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

a:hover {
  color: var(--neon-magenta);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: var(--fs-5xl); }
h2 { font-size: var(--fs-3xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p {
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ── Layout Utilities ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--wide {
  max-width: var(--container-wide);
}

.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section--alt {
  background-color: var(--bg-secondary);
}

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

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

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

.flex--between {
  justify-content: space-between;
}

.flex--center {
  justify-content: center;
}

.flex--col {
  flex-direction: column;
}

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

/* ── Section Headers ── */
.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-header__label {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--neon-cyan);
  margin-bottom: var(--space-md);
  position: relative;
  padding: var(--space-xs) var(--space-lg);
}

.section-header__label::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-full);
}

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

.section-header__description {
  font-size: var(--fs-md);
  max-width: 600px;
  margin: 0 auto;
}

/* ── Navbar ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  z-index: 1000;
  transition: all var(--transition-base);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--bg-glass-border);
  box-shadow: var(--shadow-lg);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  z-index: 1001;
}

.navbar__logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-lg);
  font-weight: 900;
  color: var(--bg-primary);
}

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

.navbar__menu {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.navbar__link {
  position: relative;
  padding: var(--space-sm) var(--space-md);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-fast);
  border-radius: var(--radius-md);
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--text-primary);
}

.navbar__link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.navbar__cta {
  margin-left: var(--space-md);
}

/* Mobile Menu Toggle */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  z-index: 1001;
  cursor: pointer;
}

.navbar__toggle-bar {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.navbar__toggle.active .navbar__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar__toggle.active .navbar__toggle-bar:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.active .navbar__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Footer ── */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--bg-glass-border);
  padding: var(--space-4xl) 0 var(--space-xl);
}

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

.footer__brand-description {
  font-size: var(--fs-sm);
  margin-top: var(--space-md);
  margin-bottom: var(--space-lg);
  max-width: 320px;
}

.footer__social {
  display: flex;
  gap: var(--space-sm);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--bg-glass);
  border: 1px solid var(--bg-glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-base);
  font-size: var(--fs-lg);
}

.footer__social-link:hover {
  background: var(--neon-cyan);
  color: var(--bg-primary);
  box-shadow: var(--glow-cyan);
  border-color: var(--neon-cyan);
}

.footer__heading {
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

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

.footer__link {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  transition: all var(--transition-fast);
  padding: var(--space-xs) 0;
}

.footer__link:hover {
  color: var(--neon-cyan);
  padding-left: var(--space-sm);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--bg-glass-border);
}

.footer__copyright {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer__bottom-links a {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
}

.footer__bottom-links a:hover {
  color: var(--neon-cyan);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  h1 { font-size: var(--fs-4xl); }
  h2 { font-size: var(--fs-2xl); }

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

@media (max-width: 768px) {
  :root {
    --navbar-height: 70px;
  }

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

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

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  h1 { font-size: var(--fs-3xl); }
  h2 { font-size: var(--fs-2xl); }

  /* Mobile Navigation */
  .navbar__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 400px;
    height: 100vh;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-2xl);
    transition: right var(--transition-slow);
    border-left: 1px solid var(--bg-glass-border);
  }

  .navbar__menu.open {
    right: 0;
  }

  .navbar__link {
    font-size: var(--fs-lg);
    padding: var(--space-md) var(--space-lg);
    width: 100%;
    text-align: left;
  }

  .navbar__cta {
    margin-left: 0;
    width: 100%;
  }

  .navbar__cta .btn {
    width: 100%;
    text-align: center;
  }

  .navbar__toggle {
    display: flex;
  }

  /* Footer Mobile */
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

@media (max-width: 480px) {
  h1 { font-size: var(--fs-2xl); }
  h2 { font-size: var(--fs-xl); }
}

/* ── Overlay for Mobile Menu ── */
.navbar__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.navbar__overlay.visible {
  opacity: 1;
  visibility: visible;
}

/* ── Particle Canvas ── */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ── Page Wrapper ── */
.page-wrapper {
  position: relative;
  z-index: 1;
}

/* ── Skip Navigation (Accessibility) ── */
.skip-nav {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--neon-cyan);
  color: var(--bg-primary);
  font-weight: 600;
  border-radius: var(--radius-md);
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-nav:focus {
  top: var(--space-md);
}