/* 
  Lawson Steel Erectors - Global Design System
  Theme: Dark Industrial Premium
*/

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

:root {
  --primary-navy: #1B2631;
  --primary-dark: #0A0A0A;
  --accent-gold: #C5A059;
  --accent-gold-hover: #D4AF37;
  --steel-gray: #5D6D7E;
  --text-light: #F4F6F7;
  --text-muted: #BDC3C7;
  --glass-bg: rgba(27, 38, 49, 0.85);
  --section-padding: 100px 5%;
  --transition-smooth: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.4);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--primary-dark);
  color: var(--text-light);
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, .nav-link {
  font-family: 'Outfit', sans-serif;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

ul {
  list-style: none;
}

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

/* --- Layout Components --- */

.section {
  padding: var(--section-padding);
  position: relative;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 40px;
  border-radius: 2px;
  transition: var(--transition-smooth);
}

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

/* --- Navbar --- */

nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  transition: var(--transition-smooth);
}

nav.scrolled {
  background: var(--glass-bg);
  padding: 15px 5%;
  box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo-img {
  height: 50px;
  filter: drop-shadow(0 0 5px rgba(197, 160, 89, 0.3));
}

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

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gold);
  transition: var(--transition-smooth);
}

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

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

.mobile-toggle {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
}

.mobile-toggle span {
  width: 30px;
  height: 3px;
  background: var(--text-light);
  transition: var(--transition-smooth);
}

/* --- Buttons --- */

.btn {
  display: inline-block;
  padding: 16px 36px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: 2px;
  cursor: pointer;
  border: none;
  font-size: 0.85rem;
  transition: var(--transition-smooth);
}

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

.btn-primary:hover {
  background: var(--accent-gold-hover);
  box-shadow: 0 0 30px rgba(197, 160, 89, 0.4);
}

.btn-outline {
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  background: transparent;
}

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

/* --- Typography Helpers --- */

.section-tag {
  color: var(--accent-gold);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  display: block;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  margin-bottom: 30px;
  line-height: 1.1;
}

.text-gradient {
  background: linear-gradient(135deg, #fff 0%, #BDC3C7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- Responsive Adjustments --- */

@media (max-width: 992px) {
  .nav-links {
    display: none;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  :root {
    --section-padding: 60px 5%;
  }
}

/* Animation Classes */
[data-reveal] {
  opacity: 0;
  transform: translateY(40px);
  transition: var(--transition-smooth);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}