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

:root {
  /* Color Palette - Premium Dark Mode */
  --bg-dark: #07090D;
  --bg-surface: #10141D;
  --bg-surface-elevated: #161A26;
  --bg-glass: rgba(16, 20, 29, 0.7);
  --border-light: rgba(255, 255, 255, 0.08);
  --border-active: rgba(184, 115, 51, 0.4);

  --copper-primary: #B87333;
  --copper-light: #CF8E55;
  --copper-dark: #8C5422;
  --gold-accent: #D4AF37;

  --text-primary: #F8F9FA;
  --text-secondary: #A0AAB2;
  --text-tertiary: #697484;

  /* Gradients */
  --copper-gradient: linear-gradient(135deg, var(--copper-primary) 0%, var(--gold-accent) 100%);
  --surface-gradient: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-dark) 100%);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  /* Typography */
  --font-family: 'Outfit', sans-serif;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-slow: 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

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

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

ul,
ol {
  list-style: none;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: 1.25rem;
}

p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: var(--space-md);
  max-width: 800px;
}

p.lead {
  font-size: 1.25rem;
  color: var(--text-primary);
  font-weight: 300;
}

.text-gradient {
  background: var(--copper-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.text-center {
  text-align: center;
}

/* Utilities */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.bg-surface {
  background-color: var(--bg-surface);
}

.bg-gradient {
  background: var(--surface-gradient);
}

/* Grid & Layout */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
}

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

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

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

.gap-md {
  gap: var(--space-md);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-fast);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background: var(--copper-gradient);
  color: #fff;
  border: none;
  box-shadow: 0 4px 15px rgba(184, 115, 51, 0.3);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--gold-accent) 0%, var(--copper-primary) 100%);
  opacity: 0;
  z-index: -1;
  transition: var(--transition-normal);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(184, 115, 51, 0.4);
}

.btn-outline {
  background: transparent;
  border-color: var(--border-active);
  color: var(--copper-primary);
}

.btn-outline:hover {
  background: rgba(184, 115, 51, 0.1);
  transform: translateY(-2px);
}

/* Header & Nav */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 0;
  transition: var(--transition-normal);
  background: transparent;
}

.header.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-light);
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 2px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo img {
  height: 32px;
  /* For an actual logo icon if available */
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--copper-gradient);
  transition: var(--transition-fast);
}

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

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

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Cards (Glassmorphism & Borders) */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 2.5rem;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--border-active);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  background: var(--bg-surface-elevated);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--copper-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-normal);
}

.card:hover::before {
  transform: scaleX(1);
}

/* Stat Box (Numbers) */
.stat-box {
  text-align: center;
  padding: 2rem;
}

.stat-number {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Lists */
.styled-list {
  padding-left: 0;
}

.styled-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.styled-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--copper-primary);
  font-weight: bold;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 70% 50%, rgba(184, 115, 51, 0.1) 0%, transparent 50%),
    url('../assets/images/azurite_malachite.png');
  /* Abstract mining/metal BG */
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--bg-dark) 20%, rgba(7, 9, 13, 0.7) 100%);
  z-index: -1;
}

.hero-content {
  max-width: 800px;
}

.hero-tagline {
  display: inline-block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--copper-primary);
  margin-bottom: 1.5rem;
  font-weight: 600;
  border: 1px solid var(--copper-primary);
  padding: 0.5rem 1rem;
  border-radius: 4px;
}

/* Footer */
.footer {
  background: var(--bg-surface-elevated);
  padding: var(--space-xl) 0 var(--space-md);
  border-top: 1px solid var(--border-light);
}

.footer-top {
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-light);
}

.footer-bottom {
  padding-top: var(--space-md);
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

.footer-social {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.social-icon {
  color: var(--text-secondary);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.social-icon:hover {
  color: var(--copper-primary);
  transform: translateY(-2px);
}

.social-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.footer-links h4 {
  color: #fff;
  margin-bottom: 1.5rem;
}

.footer-links ul li {
  margin-bottom: 0.5rem;
}

.footer-links ul li a {
  color: var(--text-secondary);
}

.footer-links ul li a:hover {
  color: var(--copper-primary);
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-100 {
  transition-delay: 0.1s;
}

.delay-200 {
  transition-delay: 0.2s;
}

.delay-300 {
  transition-delay: 0.3s;
}

/* Responsive Layering */
@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--bg-surface);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
  }

  .nav-links.active {
    left: 0;
  }

  .mobile-nav-toggle {
    display: block;
  }

  .hero {
    min-height: 80vh;
  }

  .hero-bg {
    background-attachment: scroll;
    /* Fixes iOS issue */
  }
}

/* WhatsApp Float */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  background-color: #25D366;
  color: #FFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  z-index: 1000;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.whatsapp-float:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
  color: #FFF;
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
}

@media (max-width: 768px) {
  .whatsapp-float {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 50px;
    height: 50px;
  }

  .whatsapp-float svg {
    width: 26px;
    height: 26px;
  }
}

/* WhatsApp Float */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 40px;
  right: 40px;
  background-color: #25d366;
  color: #FFF;
  border-radius: 50px;
  text-align: center;
  font-size: 30px;
  box-shadow: 0px 4px 15px rgba(37, 211, 102, 0.4);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
}

.whatsapp-float svg {
  width: 35px;
  height: 35px;
  fill: #FFF;
}

.whatsapp-float:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0px 6px 20px rgba(37, 211, 102, 0.6);
}

@media (max-width: 768px) {
  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 20px;
    right: 20px;
  }

  .whatsapp-float svg {
    width: 28px;
    height: 28px;
  }
}