/* 
  Bamine SA - Design System & Styles
  Colors: #1C1C1E (Dark), #F39C12 (Orange/Gold), #2ECC71 (Green)
*/

:root {
  /* Colors */
  --c-dark-bg: #111112;
  --c-dark-surface: #1C1C1E;
  --c-dark-card: #2c2c2e;
  
  --c-primary: #F39C12; /* Mining Orange / Gold */
  --c-primary-hover: #e67e22;
  
  --c-green: #2ECC71; /* ESG Green */
  --c-green-light: rgba(46, 204, 113, 0.1);
  
  --c-text-main: #f5f5f7;
  --c-text-muted: #a1a1a6;
  --c-white: #ffffff;
  
  /* Fonts */
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Montserrat', sans-serif;
  
  /* Utilities */
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --border-radius: 12px;
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  color: var(--c-text-muted);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

a {
  text-decoration: none;
  color: var(--c-primary);
  transition: var(--transition);
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 5%;
}

.section {
  padding: 6rem 0;
  position: relative;
}

/* Utilities */
.text-center { text-align: center; }
.text-highlight, .highlight { color: var(--c-primary); }
.text-green { color: var(--c-green); }
.text-light { color: var(--c-text-main); }
.mt-3 { margin-top: 2rem; }
.w-100 { width: 100%; }

.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-primary);
  margin-bottom: 1rem;
}

/* Grids */
.grid-2-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.grid-3-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
}

.btn.sm {
  padding: 0.6rem 1.2rem;
  font-size: 0.8rem;
}

.btn-primary {
  background-color: var(--c-primary);
  color: var(--c-dark-bg);
}

.btn-primary:hover {
  background-color: var(--c-primary-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(243, 156, 18, 0.3);
}

.btn-outline {
  border-color: var(--c-text-main);
  color: var(--c-text-main);
}

.btn-outline:hover {
  background-color: var(--c-text-main);
  color: var(--c-dark-bg);
  transform: translateY(-3px);
}

/* Glassmorphism */
.glass-panel, .glass-card {
  background: rgba(28, 28, 30, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius);
  padding: 2.5rem;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.2rem 0;
  z-index: 1000;
  transition: var(--transition);
}

header.scrolled {
  background: rgba(17, 17, 18, 0.9);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--c-white);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon i {
  color: var(--c-primary);
  font-size: 1.8rem;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--c-text-main);
  font-weight: 500;
  position: relative;
}

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

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

.mobile-menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background-image: 
    linear-gradient(to right, rgba(17, 17, 18, 0.9) 0%, rgba(17, 17, 18, 0.4) 100%),
    url('../assets/images/quarry_hero_1775048918658.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.hero-content {
  max-width: 800px;
  margin: 0;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 4rem;
  margin-bottom: 1rem;
  text-shadow: 0 4px 10px rgba(0,0,0,0.5);
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--c-text-main);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-cta {
  display: flex;
  gap: 1rem;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-indicator a {
  color: var(--c-white);
  font-size: 1.5rem;
  opacity: 0.6;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-15px); }
  60% { transform: translateY(-7px); }
}

/* About Section */
.stats-grid {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

.stat-card {
  background: var(--c-dark-surface);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  border-left: 4px solid var(--c-primary);
  min-width: 150px;
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  text-transform: uppercase;
  color: var(--c-text-muted);
  font-weight: 500;
}

.image-wrapper {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.image-wrapper::before {
  content: '';
  position: absolute;
  top: -10px; left: -10px; right: -10px; bottom: -10px;
  background: conic-gradient(from 90deg at 50% 50%, #111112 0%, var(--c-primary) 50%, #111112 100%);
  filter: blur(20px);
  opacity: 0.3;
  z-index: -1;
}

.icon-large {
  font-size: 8rem;
  color: rgba(243, 156, 18, 0.2);
}

/* Activities */
.dark-section {
  background-color: #0c0c0d;
}

.card {
  transition: var(--transition);
  text-align: center;
}

.card:hover {
  transform: translateY(-10px);
  border-color: rgba(243, 156, 18, 0.3);
}

.card-icon {
  font-size: 2.5rem;
  color: var(--c-primary);
  margin-bottom: 1.5rem;
  display: inline-block;
  padding: 1rem;
  background: rgba(243, 156, 18, 0.1);
  border-radius: 50%;
}

/* Projects Section */
.image-bg-placeholder {
  height: 500px;
  border-radius: var(--border-radius);
  background-size: cover;
  background-position: center;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

#phosphate-bg {
  background-image: url('../assets/images/phosphate_project_1775048942719.png');
}

.feature-list {
  list-style: none;
  margin-top: 2rem;
}

.feature-list li {
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.feature-list i {
  margin-top: 0.3rem;
}

/* Performance Stats */
.abstract-bg {
  background: radial-gradient(circle at center, var(--c-dark-surface) 0%, var(--c-dark-bg) 100%);
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.performance-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 4rem;
  text-align: center;
}

.circular-progress {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  background: conic-gradient(var(--c-primary) calc(var(--val) * 1%), #333 0);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

/* Specific green override for ESG stat */
.performance-stats .p-stat:last-child .circular-progress {
  background: conic-gradient(var(--c-green) calc(var(--val) * 1%), #333 0);
}

.circular-progress::before {
  content: "";
  position: absolute;
  inset: 10px;
  background-color: var(--c-dark-surface);
  border-radius: 50%;
}

.inner-value {
  position: relative;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--c-white);
}

.large-number {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--c-primary);
  margin-bottom: 0.5rem;
}

.large-number .unit {
  font-size: 1.5rem;
  color: var(--c-text-muted);
  margin-left: 0.2rem;
}

/* ESG Section */
#esg-bg {
    background-image: url('../assets/images/esg_nature_1775048957456.png');
}

.esg-accorion {
  margin-top: 2rem;
}

.esg-item {
  background: rgba(255,255,255,0.03);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  border-left: 3px solid var(--c-green);
  transition: var(--transition);
}

.esg-item:hover {
  background: rgba(46, 204, 113, 0.05);
  transform: translateX(10px);
}

.esg-item h4 {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

/* Investors Section */
.pattern-bg {
  background-image: 
    linear-gradient(rgba(17,17,18,0.9), rgba(17,17,18,0.9)),
    url('data:image/svg+xml;utf8,<svg width="40" height="40" viewBox="0 0 40 40" xmlns="http://www.w3.org/2000/svg"><path d="M0 0h40v40H0z" fill="none"/><path d="M0 0l40 40M40 0L0 40" stroke="rgba(255,255,255,0.02)" stroke-width="1"/></svg>');
}

.investor-box {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.investor-perks {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}

.perk {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-heading);
}

.perk i {
  font-size: 2rem;
  color: var(--c-primary);
  margin-bottom: 0.5rem;
}

/* Contact */
.info-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.info-item i {
  font-size: 1.5rem;
  color: var(--c-primary);
  background: rgba(243, 156, 18, 0.1);
  padding: 1rem;
  border-radius: 50%;
}

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.9rem;
}

input, textarea, select {
  width: 100%;
  padding: 1rem;
  background: rgba(0,0,0,0.2);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  color: var(--c-white);
  font-family: var(--font-body);
  transition: var(--transition);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--c-primary);
  background: rgba(0,0,0,0.4);
}

.form-status {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
  font-weight: 500;
}

.form-status.hidden { display: none; }
.form-status.success { background: rgba(46, 204, 113, 0.1); color: var(--c-green); border: 1px solid var(--c-green); }

/* Footer */
.footer {
  background-color: #000;
  padding: 4rem 0 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--c-white);
  margin-bottom: 1rem;
}

.footer h4 {
  color: var(--c-white);
  margin-bottom: 1.5rem;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 0.8rem;
}

.footer ul li a {
  color: var(--c-text-muted);
}

.footer ul li a:hover {
  color: var(--c-primary);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: var(--c-text-muted);
  font-size: 0.9rem;
}

/* Animations */
.animate-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s forwards;
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { animation-delay: 0.2s; transition-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; transition-delay: 0.4s; }

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 992px) {
  .hero-title { font-size: 3rem; }
  .grid-3-col { grid-template-columns: 1fr; }
  .performance-stats { grid-template-columns: 1fr 1fr; }
  .footer-content { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--c-dark-surface);
    flex-direction: column;
    padding: 2rem 0;
    gap: 1.5rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.5);
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    transition: var(--transition);
  }
  
  .nav-links.active {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  }
  
  .mobile-menu-toggle { display: block; }
  
  .grid-2-col { grid-template-columns: 1fr; gap: 2rem; }
  
  .reverse-mobile {
    display: flex;
    flex-direction: column-reverse;
  }
  
  .hero-title { font-size: 2.2rem; }
  .hero-cta { flex-direction: column; }
}