/* ============================================
   CIVILIZATION PROJECT - TECHNO-SPIRITUAL THEME
   Sleek, minimalist, dark aesthetic
   ============================================ */

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

:root {
  /* Core Colors */
  --bg-black: #000000;
  --bg-dark: #0a0a0a;
  --bg-card: #111111;
  --bg-card-hover: #1a1a1a;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --gray-900: #171717;

  /* Accent Colors */
  --accent-blue: #60a5fa;
  --accent-purple: #a78bfa;
  --accent-cyan: #22d3d3;
  --accent-gold: #f59e0b;
  --glow-blue: rgba(96, 165, 250, 0.3);
  --glow-purple: rgba(167, 139, 250, 0.3);

  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --section-padding: clamp(80px, 12vh, 160px);
  --container-width: 1200px;
  --container-padding: clamp(20px, 5vw, 80px);
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-main);
  background: var(--bg-black);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover { opacity: 0.8; }

a:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 4px;
}

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

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(180deg, rgba(0,0,0,0.9) 0%, transparent 100%);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(20px);
}

.nav-logo {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo-icon {
  width: 24px;
  height: 24px;
  border: 2px solid var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-400);
  padding: 8px 0;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--white);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--white);
  opacity: 1;
}

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

.nav-links a.active {
  color: var(--white);
}

@media (max-width: 900px) {
  .nav-links { display: none; }
}

/* ============================================
   HERO SECTION - MANIFESTO
   ============================================ */
.hero-manifesto {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 120px var(--container-padding) 80px;
  overflow: hidden;
}

.hero-bg-stars {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(96, 165, 250, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(167, 139, 250, 0.08) 0%, transparent 50%),
    var(--bg-black);
}

.hero-content {
  max-width: 900px;
  z-index: 1;
}

.hero-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.hero-eyebrow::before,
.hero-eyebrow::after {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--gray-700);
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
  background: linear-gradient(135deg, var(--white) 0%, var(--gray-300) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 300;
  color: var(--gray-400);
  max-width: 700px;
  margin: 0 auto 48px;
  line-height: 1.8;
}

/* Blockquote styling */
.manifesto-quote {
  max-width: 800px;
  margin: 48px auto;
  padding: 40px;
  position: relative;
  background: rgba(255, 255, 255, 0.02);
  border-left: 2px solid var(--accent-purple);
}

.manifesto-quote blockquote {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.8;
  color: var(--gray-200);
  margin-bottom: 16px;
}

.manifesto-quote cite {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--gray-500);
  font-style: normal;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--gray-500);
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 0.3s ease;
}

.scroll-indicator:hover {
  color: var(--white);
}

.scroll-indicator .arrow {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--gray-500), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.5; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.1); }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
}

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

.btn-primary:hover {
  background: transparent;
  color: var(--white);
  opacity: 1;
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--gray-600);
}

.btn-outline:hover {
  border-color: var(--white);
  opacity: 1;
}

.btn-ghost {
  background: transparent;
  color: var(--gray-300);
  border-color: transparent;
  padding: 12px 0;
}

.btn-ghost:hover {
  color: var(--white);
  opacity: 1;
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: var(--section-padding) var(--container-padding);
}

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

.section-header {
  margin-bottom: 64px;
}

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

.section-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--gray-400);
  max-width: 600px;
  line-height: 1.8;
}

.section-header.center .section-subtitle {
  margin: 0 auto;
}

/* ============================================
   PILLARS - THREE COLUMN CARDS
   ============================================ */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

@media (max-width: 900px) {
  .pillars-grid {
    grid-template-columns: 1fr;
  }
}

.pillar-card {
  position: relative;
  padding: 48px 32px;
  background: var(--bg-card);
  border: 1px solid var(--gray-800);
  overflow: hidden;
  transition: all 0.4s ease;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.pillar-card:hover {
  transform: translateY(-8px);
  border-color: var(--gray-700);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

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

.pillar-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  background: var(--gray-900);
  border-radius: 12px;
  color: var(--gray-400);
  transition: all 0.4s ease;
}

.pillar-card:hover .pillar-icon {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: var(--white);
}

.pillar-icon svg {
  width: 28px;
  height: 28px;
}

.pillar-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.pillar-description {
  font-size: 0.95rem;
  color: var(--gray-400);
  line-height: 1.8;
}

/* ============================================
   SUPERPOSITION - TOGGLE COMPONENT
   ============================================ */
.superposition-container {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.toggle-wrapper {
  display: flex;
  justify-content: center;
  margin-bottom: 48px;
}

.toggle-switch {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--gray-800);
  border-radius: 4px;
  overflow: hidden;
}

.toggle-option {
  padding: 16px 32px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  background: transparent;
}

.toggle-option.active {
  background: var(--white);
  color: var(--bg-black);
}

.toggle-option:hover:not(.active) {
  color: var(--white);
}

.perspective-content {
  min-height: 200px;
  position: relative;
}

.perspective-text {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
  pointer-events: none;
}

.perspective-text.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  position: relative;
}

.perspective-text p {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 300;
  line-height: 1.8;
  color: var(--gray-200);
}

.perspective-text.scientific p {
  font-family: 'SF Mono', Monaco, monospace;
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--accent-cyan);
}

.perspective-text.humanistic p {
  font-style: italic;
  color: var(--accent-gold);
}

/* ============================================
   FINAL SYMPOSIUM - NARRATIVE
   ============================================ */
.symposium-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px var(--container-padding);
  background: linear-gradient(180deg, var(--bg-black) 0%, #050510 50%, #0a0a14 100%);
}

.symposium-content {
  max-width: 700px;
  text-align: center;
}

.symposium-narrative {
  padding: var(--section-padding) var(--container-padding);
  background: linear-gradient(180deg, #0a0a14 0%, var(--bg-black) 100%);
}

.narrative-container {
  max-width: 700px;
  margin: 0 auto;
}

.narrative-block {
  margin-bottom: 64px;
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s ease;
}

.narrative-block.visible {
  opacity: 1;
  transform: translateY(0);
}

.narrative-block p {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 300;
  line-height: 2;
  color: var(--gray-300);
  margin-bottom: 24px;
}

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

.narrative-block em {
  color: var(--white);
  font-style: italic;
}

.narrative-divider {
  text-align: center;
  margin: 64px 0;
  color: var(--gray-600);
  font-size: 1.5rem;
  letter-spacing: 1em;
}

/* Fade to white effect */
.symposium-fade {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--section-padding) var(--container-padding);
  background: linear-gradient(180deg, var(--bg-black) 0%, #fafafa 100%);
}

.symposium-fade .final-text {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 600;
  color: var(--bg-black);
  max-width: 600px;
}

/* ============================================
   FOUNDERS - BIO SECTION
   ============================================ */
.founder-profile {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 80px;
}

@media (max-width: 900px) {
  .founder-profile {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.founder-image {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 8px;
  background: var(--bg-card);
}

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

.founder-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--gray-800);
  border-radius: 8px;
}

.founder-bio h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.founder-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 24px;
}

.founder-text {
  font-size: 1rem;
  color: var(--gray-400);
  line-height: 1.9;
  margin-bottom: 32px;
}

.founder-quote {
  padding: 24px;
  background: var(--bg-card);
  border-left: 2px solid var(--accent-purple);
  font-style: italic;
  color: var(--gray-300);
  line-height: 1.8;
}

/* Inspirations Grid */
.inspirations-section {
  border-top: 1px solid var(--gray-800);
  padding-top: 64px;
}

.inspirations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.inspiration-item {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--gray-800);
  transition: all 0.3s ease;
}

.inspiration-item:hover {
  border-color: var(--gray-700);
  transform: translateY(-4px);
}

.inspiration-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.inspiration-role {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-purple);
  margin-bottom: 12px;
}

.inspiration-description {
  font-size: 0.9rem;
  color: var(--gray-400);
  line-height: 1.7;
}

/* ============================================
   LIBRARY OF TIME - TIMELINE
   ============================================ */
.timeline-section {
  padding: var(--section-padding) var(--container-padding);
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--gray-700), var(--gray-700), transparent);
  transform: translateX(-50%);
}

@media (max-width: 768px) {
  .timeline::before {
    left: 20px;
  }
}

.timeline-event {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-bottom: 80px;
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.6s ease;
}

.timeline-event.visible {
  opacity: 1;
  transform: translateY(0);
}

.timeline-event:nth-child(odd) .timeline-date {
  text-align: right;
}

.timeline-event:nth-child(even) {
  direction: rtl;
}

.timeline-event:nth-child(even) > * {
  direction: ltr;
}

.timeline-event:nth-child(even) .timeline-date {
  text-align: left;
}

@media (max-width: 768px) {
  .timeline-event,
  .timeline-event:nth-child(even) {
    grid-template-columns: 1fr;
    padding-left: 50px;
    direction: ltr;
  }

  .timeline-event .timeline-date,
  .timeline-event:nth-child(odd) .timeline-date,
  .timeline-event:nth-child(even) .timeline-date {
    text-align: left;
  }
}

.timeline-marker {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background: var(--bg-black);
  border: 2px solid var(--gray-600);
  border-radius: 50%;
  z-index: 1;
  transition: all 0.3s ease;
}

.timeline-event:hover .timeline-marker {
  border-color: var(--accent-purple);
  box-shadow: 0 0 20px var(--glow-purple);
}

.timeline-event.future .timeline-marker {
  border-style: dashed;
}

@media (max-width: 768px) {
  .timeline-marker {
    left: 20px;
  }
}

.timeline-date {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-500);
  padding-top: 4px;
}

.timeline-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.timeline-content p {
  font-size: 0.95rem;
  color: var(--gray-400);
  line-height: 1.8;
}

.timeline-tag {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 12px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
  background: var(--gray-900);
  border-radius: 2px;
}

.timeline-event.future .timeline-tag {
  color: var(--accent-purple);
  background: rgba(167, 139, 250, 0.1);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 60px var(--container-padding);
  border-top: 1px solid var(--gray-800);
  text-align: center;
}

.footer-logo {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-tagline {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 32px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.footer-nav a {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
}

.footer-nav a:hover {
  color: var(--white);
  opacity: 1;
}

.footer-copyright {
  font-size: 11px;
  color: var(--gray-600);
  letter-spacing: 0.1em;
}

/* ============================================
   PARTICLES BACKGROUND
   ============================================ */
.particles {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--gray-600);
  border-radius: 50%;
  animation: floatParticle 25s infinite linear;
}

@keyframes floatParticle {
  0% { transform: translateY(100vh) translateX(0); opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { transform: translateY(-100vh) translateX(50px); opacity: 0; }
}

.particle:nth-child(1) { left: 5%; animation-delay: 0s; }
.particle:nth-child(2) { left: 15%; animation-delay: 3s; }
.particle:nth-child(3) { left: 25%; animation-delay: 6s; }
.particle:nth-child(4) { left: 35%; animation-delay: 2s; }
.particle:nth-child(5) { left: 45%; animation-delay: 8s; }
.particle:nth-child(6) { left: 55%; animation-delay: 4s; }
.particle:nth-child(7) { left: 65%; animation-delay: 1s; }
.particle:nth-child(8) { left: 75%; animation-delay: 5s; }
.particle:nth-child(9) { left: 85%; animation-delay: 7s; }
.particle:nth-child(10) { left: 95%; animation-delay: 9s; }

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeInUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ============================================
   LOADING STATE
   ============================================ */
.loading { opacity: 0; }

.loaded {
  opacity: 1;
  transition: opacity 0.6s ease;
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-black); }
::-webkit-scrollbar-thumb { background: var(--gray-700); }
::-webkit-scrollbar-thumb:hover { background: var(--gray-600); }