/* --- Custom Variables & Modern Palette --- */
:root {
  --bg-dark: #07080d;
  --bg-surface: #0e111a;
  --bg-surface-elevated: #161b2a;
  --primary: #8a63ff;
  --primary-glow: rgba(138, 99, 255, 0.4);
  --accent: #2de2e6;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(138, 99, 255, 0.3);
  --glass-bg: rgba(14, 17, 26, 0.75);
  --glass-border: rgba(255, 255, 255, 0.06);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-dark);
}

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

/* --- Layout Containers --- */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 24px;
}

/* --- Typography --- */
h1, h2, h3, h4, .logo {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Header & Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.6rem;
  text-decoration: none;
  color: var(--text-primary);
  letter-spacing: 0.1em;
}

.logo span {
  color: var(--accent);
  font-weight: 300;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

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

.nav-link:not(.nav-btn)::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: var(--transition);
}

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

/* Hamburger menu button */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1010;
}

.menu-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #683aff 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-secondary);
}

.nav-btn {
  background: var(--primary);
  color: #fff;
  padding: 8px 20px;
  border-radius: 50px;
}

.nav-btn:hover {
  background: #9b7bff;
  box-shadow: 0 4px 15px var(--primary-glow);
}

/* --- Hero Section --- */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px 24px 80px;
  overflow: hidden;
}

.hero-bg-glow {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--primary-glow) 0%, rgba(7, 8, 13, 0) 70%);
  filter: blur(80px);
  z-index: 1;
  pointer-events: none;
}

.hero-container {
  max-width: 900px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent);
  border-radius: 50%;
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.6; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.6; }
}

.hero-title {
  font-size: clamp(2.5rem, 7vw, 4.8rem);
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 40px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* --- Countdown Component --- */
.countdown-container {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  background: rgba(14, 17, 26, 0.6);
  border: 1px solid var(--border);
  padding: 24px 40px;
  border-radius: 20px;
  backdrop-filter: blur(8px);
  margin-bottom: 48px;
}

.countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.countdown-item .count {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
}

.countdown-item .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-top: 4px;
}

.countdown-separator {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.7;
  padding-bottom: 12px;
}

/* --- Quick Info Row --- */
.quick-info-section {
  padding: 40px 24px;
  background-color: var(--bg-surface);
  border-y: 1px solid var(--border);
}

.info-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.info-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  transition: var(--transition);
}

.info-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
}

.info-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.info-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.info-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* --- Highlights Section --- */
.highlights-section {
  background: var(--bg-dark);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 60px;
}

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

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.highlight-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px 32px;
  position: relative;
  transition: var(--transition);
}

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

.hl-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  color: rgba(138, 99, 255, 0.15);
  position: absolute;
  top: 20px;
  right: 30px;
}

.highlight-item h3 {
  font-size: 1.35rem;
  margin-bottom: 16px;
  position: relative;
  z-index: 2;
}

.highlight-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- About Pages Styles --- */
.page-hero {
  padding: 160px 24px 80px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-dark) 100%);
  border-bottom: 1px solid var(--border);
}

.about-editorial-section {
  padding: 80px 24px;
}

.editorial-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 80px;
  max-width: 900px;
  margin: 0 auto;
}

.editorial-block {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  align-items: start;
}

.editorial-tag {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-left: 3px solid var(--primary);
  padding-left: 16px;
  margin-top: 6px;
}

.editorial-content h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.editorial-content p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

/* --- Registration Section --- */
.registration-container {
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.registration-header {
  text-align: center;
  margin-bottom: 40px;
}

.registration-header h2 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.registration-header p {
  color: var(--text-secondary);
}

.form-wrapper {
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #ffffff;
}

/* --- Footer --- */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 80px 24px 40px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-top: 16px;
  max-width: 400px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.footer-links a {
  text-decoration: none;
  color: var(--text-secondary);
  transition: var(--transition);
}

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

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
  padding-top: 30px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Scroll Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

/* --- Mobile Responsiveness --- */
@media (max-width: 991px) {
  .info-grid, .highlights-grid {
    grid-template-columns: 1fr;
  }
  
  .editorial-block {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 75px;
    left: 0;
    width: 100%;
    background: var(--bg-surface);
    flex-direction: column;
    padding: 40px 24px;
    gap: 24px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: var(--transition);
    pointer-events: none;
  }

  .nav-menu.mobile-active {
    transform: translateY(0);
    pointer-events: all;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .countdown-container {
    gap: 12px;
    padding: 16px 20px;
  }

  .countdown-item .count {
    font-size: 1.8rem;
  }

  .countdown-separator {
    font-size: 1.5rem;
  }

  .hero-ctas {
    flex-direction: column;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}