/* StrataNova Mining - Professional Investor Website */

/* Import distinctive fonts */
@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@300;400;500;600&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

/* CSS Variables - Updated to Match Logo Colors */
:root {
  /* Primary Colors - From Logo */
  --color-slate: #2d3e3f;
  --color-slate-light: #3f5456;
  --color-slate-lighter: #556a6c;
  --color-grey: #64748b;
  --color-grey-light: #94a3b8;
  --color-grey-lighter: #cbd5e1;
  --color-grey-lightest: #f1f5f9;
  --color-copper: #c67841;
  --color-copper-dark: #a65d2f;
  --color-earth: #78716c;
  
  /* Accent Colors */
  --color-white: #ffffff;
  --color-off-white: #fafaf9;
  --color-border: #e2e8f0;
  
  /* Typography */
  --font-display: 'Archivo', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  
  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --border-radius: 2px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-slate);
  background-color: var(--color-off-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.2;
  color: var(--color-slate);
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
  font-weight: 400;
}

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

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-slate-light);
}

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

a:hover {
  color: var(--color-copper-dark);
}

/* Header */
.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  background-color: rgba(255, 255, 255, 0.95);
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo {
  display: block;
  transition: opacity var(--transition-fast);
}

.site-logo img {
  height: 32px;
  width: auto;
  display: block;
}

.site-logo:hover {
  opacity: 0.8;
}

.site-nav ul {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.site-nav a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-slate-light);
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition-fast);
}

.site-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-copper);
  transition: width var(--transition-base);
}

.site-nav a:hover {
  color: var(--color-slate);
}

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

.site-nav a.active {
  color: var(--color-slate);
}

.site-nav a.active::after {
  width: 100%;
}

/* Hero Section */
.hero {
  position: relative;
  padding: var(--space-xl) var(--space-lg);
  background: linear-gradient(135deg, var(--color-slate) 0%, var(--color-slate-light) 100%);
  color: var(--color-white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.03) 2px, rgba(255,255,255,0.03) 4px),
    repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255,255,255,0.03) 2px, rgba(255,255,255,0.03) 4px);
  opacity: 0.5;
  pointer-events: none;
}

.hero-container {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: var(--color-white);
  max-width: 800px;
  margin-bottom: var(--space-md);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-grey-lighter);
  max-width: 600px;
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  text-align: center;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--color-copper);
  color: var(--color-white);
  border-color: var(--color-copper);
}

.btn-primary:hover {
  background-color: var(--color-copper-dark);
  border-color: var(--color-copper-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(198, 120, 65, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-secondary:hover {
  background-color: var(--color-white);
  color: var(--color-slate);
  transform: translateY(-2px);
}

.btn-group {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-sm) var(--space-sm);
}

.container-narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: var(--space-xs) var(--space-sm);
}

/* Section */
.section {
  padding: var(--space-2xl) 0;
}

.section-header {
  margin-bottom: var(--space-xl);
}

.section-title {
  color: var(--color-slate);
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-grey);
  max-width: 700px;
}

.text-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Cards */
.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  position: relative;
  max-height: 650px;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background-color: var(--color-copper);
  transition: height var(--transition-base);
}

.card:hover {
  border-color: var(--color-grey-light);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.card:hover::before {
  height: 100%;
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.card-meta {
  font-size: 0.875rem;
  color: var(--color-grey);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Project Image */
.project-image {
  width: 100%;
  max-width: 80%;  /* <-- Add this line */
  margin-left: auto;  /* <-- Add this */
  margin-right: auto; /* <-- Add this */
  height: 400px;
  background-color: var(--color-grey-lightest);
  background-image: 
    repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(0,0,0,0.02) 10px, rgba(0,0,0,0.02) 20px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-grey-light);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xl);
  border: 1px solid var(--color-border);
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Team Member Cards */
.team-member {
  text-align: center;
}

.team-avatar {
  width: 160px;
  height: 160px;
  margin: 0 auto var(--space-md);
  background-color: var(--color-grey-lightest);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--color-grey-light);
  font-weight: 600;
  border: 3px solid var(--color-border);
  transition: all var(--transition-base);
}

.team-member:hover .team-avatar {
  border-color: var(--color-copper);
  transform: scale(1.05);
}

.team-name {
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

.team-title {
  font-size: 0.95rem;
  color: var(--color-copper);
  font-weight: 500;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.team-bio {
  font-size: 0.95rem;
  color: var(--color-grey);
  line-height: 1.6;
}

/* Footer */
.site-footer {
  background-color: var(--color-slate);
  color: var(--color-grey-lighter);
  padding: var(--space-xl) 0 var(--space-lg);
  margin-top: var(--space-2xl);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-slate-lighter);
}

.footer-brand img {
  height: 32px;
  width: auto;
  margin-bottom: var(--space-md);
  filter: brightness(0) invert(1);
}

.footer-description {
  color: var(--color-grey-light);
  line-height: 1.6;
}

.footer-section-title {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--color-grey-light);
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-white);
}

.footer-bottom {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-grey);
}

/* Content Blocks */
.content-block {
  margin-bottom: var(--space-xl);
}

.content-block:last-child {
  margin-bottom: 0;
}

/* Stats/Highlights */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.stat-item {
  text-align: center;
  padding: var(--space-lg);
  background-color: var(--color-white);
  border-top: 3px solid var(--color-copper);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-slate);
  display: block;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-grey);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Data Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
}

.data-table tr {
  border-bottom: 1px solid var(--color-border);
}

.data-table td {
  padding: var(--space-sm) 0;
  font-size: 0.95rem;
}

.data-table td:first-child {
  font-weight: 500;
  color: var(--color-slate);
}

.data-table td:last-child {
  text-align: right;
  color: var(--color-slate-light);
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
  
  .site-nav ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
  }
  
  .hero {
    padding: var(--space-xl) var(--space-md);
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .btn-group {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .project-image {
    height: 250px;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mb-sm { margin-bottom: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mb-md { margin-bottom: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-lg { margin-bottom: var(--space-lg); }

.text-muted {
  color: var(--color-grey);
}

.text-small {
  font-size: 0.875rem;
}

/* PDF Embed Container */
.pdf-container {
  margin: var(--space-xl) 0;
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  min-height: 600px;
}

.pdf-container iframe {
  width: 100%;
  min-height: 800px;
  border: none;
}

/* Tabs */
.tabs-container {
  margin-top: var(--space-xs);
}

.tabs-nav {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.tab-button {
  background: none;
  border: none;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-grey);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tab-button:hover {
  color: var(--color-slate);
  background-color: var(--color-grey-lightest);
}

.tab-button.active {
  color: var(--color-copper);
  border-bottom-color: var(--color-copper);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .tabs-nav {
    flex-direction: column;
    border-bottom: none;
  }
  
  .tab-button {
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 0;
    text-align: left;
  }
  
  .tab-button.active {
    background-color: var(--color-grey-lightest);
    border-left: 3px solid var(--color-copper);
  }
}