/* BIGROCK Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&family=Oswald:wght@500;700&display=swap');

:root {
  /* Colors */
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #1a1a1a;
  --color-bg-tertiary: #262626;

  --color-text-primary: #ffffff;
  --color-text-secondary: #aaaaaa;
  --color-text-muted: #666666;

  /* Corporate Colors - Monotone/Silver */
  --color-accent-gold: #ffffff;
  /* Use White for high contrast accents */
  --color-accent-silver: #cccccc;
  /* Silver for secondary accents */
  --color-accent-red: #e60000;
  /* Keep red for localized errors/alerts only */

  --color-border: #333333;

  /* Typography */
  --font-family-base: 'Inter', sans-serif;
  --font-family-display: 'Oswald', sans-serif;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 96px;

  /* Layout */
  --container-width: 1200px;
  --header-height: 80px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

body {
  font-family: var(--font-family-base);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

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

/* Typography Utilities */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-family-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 3.5rem;
  line-height: 1.1;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 1.75rem;
}

p {
  margin-bottom: var(--spacing-md);
}

/* Layout Utilities */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-4xl) 0;
}

/* Components: Button */
.btn {
  display: inline-block;
  padding: 12px 32px;
  font-family: var(--font-family-display);
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid var(--color-accent-gold);
  color: var(--color-accent-gold);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.btn:hover {
  background: var(--color-accent-gold);
  color: var(--color-bg-primary);
}

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

.btn-primary:hover {
  background: #b5952f;
  /* Darker Gold */
  border-color: #b5952f;
}

/* Components: Card */
.card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  padding: var(--spacing-lg);
  transition: transform var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent-gold);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(10, 10, 10, 0.9);
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 40px;
  /* Adjust height to fit header */
  width: auto;
  display: block;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-xl);
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent-gold);
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
  padding: 10px;
}

.mobile-menu-btn span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--color-text-primary);
  margin: 5px 0;
  transition: all 0.3s ease;
}

/* Mobile Menu Active State (Hamburger to X) */
.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Footer */
.footer {
  background: var(--color-bg-secondary);
  padding: var(--spacing-3xl) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
}

/* Responsive Navigation */
@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right 0.4s ease;
    z-index: 999;
  }

  .nav-menu.active {
    right: 0;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.5);
  }

  .nav-menu li {
    opacity: 0;
    transform: translateX(20px);
    transition: all 0.4s ease;
  }

  /* Stagger animation for menu items */
  .nav-menu.active li {
    opacity: 1;
    transform: translateX(0);
  }

  .nav-menu.active li:nth-child(1) {
    transition-delay: 0.1s;
  }

  .nav-menu.active li:nth-child(2) {
    transition-delay: 0.2s;
  }

  .nav-menu.active li:nth-child(3) {
    transition-delay: 0.3s;
  }

  .nav-menu.active li:nth-child(4) {
    transition-delay: 0.4s;
  }

  .hero h1 {
    font-size: 2.5rem;
  }
}