/*
 * VRPL Website - Global Styles
 * Premium base styles and typography
 */

/* ========================================
   GOOGLE FONTS IMPORT
   ======================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ========================================
   BASE STYLES
   ======================================== */

html {
  font-size: 16px;
  scroll-padding-top: 100px;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-relaxed);
  color: var(--text-primary);
  background-color: var(--background-dark);
  overflow-x: hidden;
  position: relative;
}

/* Add subtle noise texture to body */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: var(--texture-noise);
  opacity: 0.5;
  pointer-events: none;
  z-index: -1;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--text-5xl);
  font-weight: var(--weight-black);
  letter-spacing: -0.03em;
}

h2 {
  font-size: var(--text-4xl);
}

h3 {
  font-size: var(--text-3xl);
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

.lead-text {
  font-size: var(--text-xl);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-lg);
}

strong {
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
}

/* ========================================
   LAYOUT CONTAINERS
   ======================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--space-2xl);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

@media (max-width: 768px) {
  .container,
  .container-narrow {
    padding: 0 var(--space-md);
  }

  .container-fluid {
    padding: 0 var(--space-lg);
  }
}

/* ========================================
   SECTIONS
   ======================================== */

.section {
  position: relative;
  padding: var(--space-4xl) 0;
  overflow: hidden;
}

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

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

/* Section with pattern */
.section.pattern {
  background-image: var(--pattern-hexagon);
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-3xl) 0;
  }
}

/* ========================================
   SECTION HEADERS
   ======================================== */

.section-header {
  margin-bottom: var(--space-3xl);
}

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

.section-tag {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--copper-light);
  margin-bottom: var(--space-sm);
  position: relative;
  padding-left: var(--space-lg);
}

.section-tag::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--copper-medium), var(--light-green));
}

.section-header.center .section-tag::before {
  display: none;
}

.section-title {
  font-size: var(--text-4xl);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

/* ========================================
   COPPER DIVIDER
   ======================================== */

.copper-divider {
  height: 3px;
  width: 80px;
  background: linear-gradient(90deg, var(--copper-medium), var(--light-green));
  border-radius: var(--radius-full);
  margin: var(--space-md) 0;
  position: relative;
}

.copper-divider::after {
  content: '';
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--light-green);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--green-glow);
}

.copper-divider.center {
  margin-left: auto;
  margin-right: auto;
}

/* Section Divider (full width) */
.section-divider {
  height: 2px;
  max-width: 1200px;
  margin: var(--space-4xl) auto;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--copper-medium) 30%,
    var(--light-green) 50%,
    var(--copper-medium) 70%,
    transparent 100%
  );
  opacity: 0.3;
}

/* ========================================
   GRID LAYOUTS
   ======================================== */

.two-column {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3xl);
  align-items: center;
}

.two-column.reverse {
  direction: rtl;
}

.two-column.reverse > * {
  direction: ltr;
}

@media (max-width: 1024px) {
  .two-column {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .two-column.reverse {
    direction: ltr;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

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

.text-copper {
  color: var(--copper-light);
}

.text-green {
  color: var(--light-green);
}

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

.highlight-green {
  background: linear-gradient(135deg, var(--moss-green), var(--light-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

/* ========================================
   ANIMATIONS
   ======================================== */

/* Fade In Up Animation */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-up.animated {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for sequential animations */
.fade-in-up.delay-1 {
  transition-delay: 200ms;
}

.fade-in-up.delay-2 {
  transition-delay: 400ms;
}

.fade-in-up.delay-3 {
  transition-delay: 600ms;
}

.fade-in-up.delay-4 {
  transition-delay: 800ms;
}

/* Scale In Animation */
.scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.scale-in.animated {
  opacity: 1;
  transform: scale(1);
}

/* Slide In Left */
.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.slide-in-left.animated {
  opacity: 1;
  transform: translateX(0);
}

/* Slide In Right */
.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.slide-in-right.animated {
  opacity: 1;
  transform: translateX(0);
}

/* Rotate In */
.rotate-in {
  opacity: 0;
  transform: rotate(-5deg);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.rotate-in.animated {
  opacity: 1;
  transform: rotate(0deg);
}

/* ========================================
   SCROLL INDICATOR
   ======================================== */

.scroll-indicator {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 50;
  animation: floatUpDown 2s ease-in-out infinite;
  opacity: 0.9;
  visibility: visible;
  transition: opacity 0.4s ease, visibility 0.4s ease;
  pointer-events: none;
}

.scroll-indicator:hover {
  opacity: 1;
}

.scroll-icon {
  width: 20px;
  height: 32px;
  border: 2px solid var(--copper-light);
  border-radius: 12px;
  position: relative;
  background: rgba(28, 28, 28, 0.5);
  backdrop-filter: blur(4px);
}

.scroll-icon::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 6px;
  background: var(--copper-light);
  border-radius: 2px;
  animation: scrollDown 2s ease-in-out infinite;
}

.scroll-text {
  font-size: 11px;
  color: var(--copper-light);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

@keyframes floatUpDown {
  0%, 100% {
    transform: translate(-50%, 0);
  }
  50% {
    transform: translate(-50%, 8px);
  }
}

@keyframes scrollDown {
  0% {
    opacity: 0;
    top: 6px;
  }
  30% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    top: 16px;
  }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */

/* Focus visible styles */
:focus-visible {
  outline: 2px solid var(--copper-light);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Skip to main content link */
.skip-to-content {
  position: absolute;
  left: -9999px;
  z-index: 999;
  padding: var(--space-sm) var(--space-md);
  background: var(--copper-medium);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: var(--weight-semibold);
}

.skip-to-content:focus {
  left: var(--space-md);
  top: var(--space-md);
}

/* ========================================
   SELECTION
   ======================================== */

::selection {
  background: var(--copper-medium);
  color: var(--text-primary);
}

::-moz-selection {
  background: var(--copper-medium);
  color: var(--text-primary);
}

/* ========================================
   SCROLLBAR
   ======================================== */

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--background-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-copper);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--copper-light);
}

/* ========================================
   LOADING STATE
   ======================================== */

.loading {
  pointer-events: none;
  opacity: 0.6;
  position: relative;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 24px;
  height: 24px;
  margin: -12px 0 0 -12px;
  border: 3px solid var(--copper-medium);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}