/*
  DB Enterprises Management Website
  Layout Stylesheet (Global Navigation, Header, Footer)
*/

@import url('https://fonts.googleapis.com/css2?family=Merriweather:wght@300;400;700;900&family=Source+Sans+3:wght@200;300;400;500;600;700;800;900&display=swap');

:root {
  /* Brand Colors — Electric Construction Palette */
  --color-primary: #020817; /* Deep Midnight Black/Navy */
  --color-primary-light: #0A192F;
  --color-electric: #00D1FF; /* Electric Blue Accent */
  --color-accent: #00D1FF;
  --color-gold: #C8A96B;
  --color-sky: #00D1FF;
  --color-steel: #829AB1;
  --color-electric-glow: rgba(0, 209, 255, 0.5);
  --color-electric-hover: #00B4DB;
  --color-secondary: #5B6B7A;
  --color-metal: #829AB1;    /* Metallic Slate */
  --color-silver: #E2E8F0;
  
  --color-white: #FFFFFF;
  --color-ice: #F1F4F8;      /* Soft Blue/Ice */
  
  --color-charcoal: #0F172A;
  --color-background: #020817; /* Dark background for the new aesthetic */
  --color-text: #F1F5F9;
  --color-text-muted: #94A3B8;

  --font-heading: "Merriweather", serif;
  --font-body: "Source Sans 3", sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;

  --container-width: 1280px;
  --border-radius: 8px;
  --border-radius-lg: 16px;
  
  --shadow-electric: 0 0 20px rgba(0, 209, 255, 0.2);
  --shadow-medium: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
  --shadow-heavy: 0 25px 50px -12px rgba(0, 0, 0, 0.5);

  --glass: rgba(15, 23, 42, 0.8);
  --glass-border: rgba(0, 209, 255, 0.2);

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

body.no-scroll {
  overflow: hidden;
}

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

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

ul {
  list-style: none;
}

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

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

.section {
  padding: 100px 0;
  background-color: var(--color-background);
}

/* Components — Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  text-align: center;
  border: none;
  font-family: var(--font-body);
}

.btn-primary {
  background-color: var(--color-electric);
  color: var(--color-primary);
  border: none;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 0 15px var(--color-electric-glow);
}

.btn-primary:hover {
  background-color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 0 25px var(--color-electric);
}

.btn-cta {
  background: linear-gradient(90deg, var(--color-electric) 0%, #00B4DB 100%);
  color: var(--color-primary);
  padding: 1.2rem 2.5rem;
  font-size: 1.1rem;
  font-weight: 800;
  border-radius: var(--border-radius);
  box-shadow: 0 0 20px var(--color-electric-glow);
}

.btn-cta:hover {
  background: var(--color-white);
  box-shadow: 0 0 30px var(--color-electric);
  transform: scale(1.05);
}

/* Top Bar */
.top-bar {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* Header & Nav */
header {
  background-color: rgba(10, 25, 47, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  border-bottom: 1px solid rgba(0, 209, 255, 0.15);
  transition: all var(--transition-normal);
}

header.scrolled {
  padding: 0.75rem 0;
  background-color: rgba(22, 50, 79, 0.99);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

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

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

.nav-links a {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  position: relative;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: 0.85rem;
}

/* Footer */
footer {
  background-color: var(--color-charcoal);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-social {
  text-align: center;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-social p {
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
}

.footer-social .social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: var(--color-white);
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background-color: var(--color-electric);
  color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: 0 0 15px var(--color-electric-glow);
  border-color: var(--color-electric);
}

/* Hamburger (mobile) */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background-color: var(--color-white);
  transition: var(--transition-normal);
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  .nav-links {
    display: none; /* Mobile menu logic in navigation.js */
  }
}