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

:root {
  --magenta: #d000ff;
  --purple: #7b00e0;
  --blue: #0019ff;
  --dark-blue: #000a66;
  --deep-purple: #1a0033;
  --bg-dark: #0a0014;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.45);
  --gradient-main: linear-gradient(135deg, var(--magenta), var(--purple), var(--blue));
  --gradient-subtle: linear-gradient(135deg, rgba(208,0,255,0.15), rgba(0,25,255,0.15));
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled,
.navbar-solid {
  background: rgba(10, 0, 20, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--gradient-main);
  border-radius: 8px;
  font-size: 0.75rem;
}

.logo-accent {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 1px;
}

.nav-link-external::after {
  content: none !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(208,0,255,0.3) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(0,25,255,0.25) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 80%, rgba(123,0,224,0.2) 0%, transparent 50%),
    var(--bg-dark);
  animation: heroShift 15s ease-in-out infinite alternate;
}

@keyframes heroShift {
  0% { transform: scale(1) translate(0, 0); }
  50% { transform: scale(1.05) translate(-10px, 5px); }
  100% { transform: scale(1) translate(5px, -5px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  padding: 120px 24px 80px;
}

.hero-logo {
  margin-bottom: 24px;
  display: flex;
  justify-content: center;
}

.hero-logo img {
  width: 200px;
  height: auto;
  filter: drop-shadow(0 0 30px rgba(255,255,255,0.25)) drop-shadow(0 0 60px rgba(0,25,255,0.3));
  animation: logoFloat 6s ease-in-out infinite;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--magenta);
  margin-bottom: 24px;
  padding: 6px 16px;
  border: 1px solid rgba(208,0,255,0.3);
  border-radius: 100px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: var(--gradient-main);
  color: white;
  box-shadow: 0 4px 20px rgba(208, 0, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(208, 0, 255, 0.4);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

/* ===== Section Headers ===== */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--magenta);
  margin-bottom: 16px;
}

.section-header h1,
.section-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== About Section ===== */
.about {
  padding: 120px 0;
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-subtle), transparent);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition);
}

.about-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(208,0,255,0.2);
  transform: translateY(-4px);
}

.about-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.about-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

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

/* ===== Team Section ===== */
.team {
  padding: 120px 0;
  position: relative;
}

.team::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-subtle), transparent);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
  display: block;
}

.team-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(208,0,255,0.2);
  transform: translateY(-4px);
}

.team-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  position: relative;
  overflow: hidden;
}

.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.team-avatar::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: var(--gradient-main);
  z-index: -1;
  opacity: 0.3;
  filter: blur(8px);
}

.avatar-initials {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: white;
}

.team-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.team-card p {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.team-social {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 16px;
}

.team-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  color: var(--text-muted);
  transition: var(--transition);
}

.team-social a:hover {
  background: var(--gradient-main);
  color: white;
  transform: scale(1.15);
}

.team-social svg {
  width: 16px;
  height: 16px;
}

/* ===== Sessions ===== */
.latest-sessions {
  padding: 120px 0;
  position: relative;
}

.latest-sessions::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-subtle), transparent);
}

.sessions-hero {
  padding: 140px 0 60px;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(208,0,255,0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 30%, rgba(0,25,255,0.1) 0%, transparent 60%);
}

.all-sessions {
  padding: 0 0 120px;
}

.sessions-filter {
  margin-bottom: 40px;
}

.search-input {
  width: 100%;
  max-width: 480px;
  padding: 14px 20px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  outline: none;
  transition: var(--transition);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-input:focus {
  border-color: rgba(208,0,255,0.4);
  box-shadow: 0 0 0 3px rgba(208,0,255,0.1);
}

.sessions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.sessions-grid-full {
  grid-template-columns: repeat(3, 1fr);
}

.session-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.session-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(208,0,255,0.2);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.session-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: rgba(255,255,255,0.03);
}

.session-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.session-card:hover .session-thumb img {
  transform: scale(1.05);
}

.session-thumb .play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
  opacity: 0;
  transition: var(--transition);
}

.session-card:hover .play-overlay {
  opacity: 1;
}

.play-overlay svg {
  width: 48px;
  height: 48px;
  fill: white;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.4));
}

.session-info {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.session-info h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
}

.session-info p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.5;
  margin-top: auto;
}

.sessions-cta {
  text-align: center;
  margin-top: 48px;
}

.sessions-load-more,
.sessions-end {
  text-align: center;
  padding: 40px 24px;
}

.sessions-load-more p,
.sessions-end p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.sessions-fallback {
  text-align: center;
  padding: 60px 24px;
}

.sessions-fallback p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 1.05rem;
}

/* ===== Loading ===== */
.loading-placeholder {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-subtle);
  border-top-color: var(--magenta);
  border-radius: 50%;
  margin: 0 auto 16px;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Connect Section ===== */
.connect {
  padding: 120px 0;
  position: relative;
}

.connect::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-subtle), transparent);
}

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

.connect-content h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.connect-content > p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 40px;
}

.connect-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
}

.connect-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  text-align: left;
}

.connect-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(208,0,255,0.2);
  transform: translateY(-2px);
}

.connect-card svg {
  flex-shrink: 0;
  color: var(--magenta);
  fill: var(--magenta);
}

.connect-card h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.connect-card p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ===== Footer ===== */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
}

.footer-content p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .about-grid,
  .sessions-grid,
  .sessions-grid-full {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

body.menu-open {
  overflow: hidden;
}

body.menu-open .navbar,
.navbar:has(.nav-links.open) {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: rgba(10, 0, 20, 0.98);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    z-index: 999;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links .nav-link {
    font-size: 1.3rem;
    padding: 8px 16px;
  }

  .nav-toggle {
    display: flex;
    z-index: 1001;
    position: relative;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sessions-grid,
  .sessions-grid-full {
    grid-template-columns: 1fr;
  }

  .connect-links {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: clamp(2.5rem, 10vw, 4rem);
  }

  .footer-content {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .team-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}