:root {
  --bg: #0b0a14;
  --surface: #151324;
  --surface-2: #1c1a33;
  --border: #2c2850;
  --purple: #6a5cf0;
  --purple-bright: #8b7dff;
  --purple-dim: #453c8f;
  --text: #ede9ff;
  --text-dim: #a9a3c9;
  --danger: #ff6b7a;
  --success: #6bffa0;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  position: relative;
  overflow-x: hidden;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(138, 122, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 122, 255, 0.07) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
}

header.site-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  max-width: 900px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1.5rem;
}

.logo {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--purple-dim), 0 8px 24px rgba(106, 92, 240, 0.35);
  flex-shrink: 0;
}

.header-text h1 {
  margin: 0;
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff, var(--purple-bright));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subtitle {
  margin: 0.25rem 0 0;
  color: var(--text-dim);
  font-size: 1rem;
}

main {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.videos {
  margin: 2rem 0 2.25rem;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.video-embed {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.channel-link {
  display: inline-block;
  margin-top: 0.9rem;
  color: var(--purple-bright);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

.channel-link:hover {
  text-decoration: underline;
}

.intro {
  color: var(--text-dim);
  line-height: 1.6;
  font-size: 0.95rem;
  border-left: 3px solid var(--purple-dim);
  padding-left: 1rem;
  margin-bottom: 2rem;
}

.intro strong {
  color: var(--purple-bright);
}

.status-banner {
  background: var(--surface-2);
  border: 1px solid var(--purple-dim);
  color: var(--text);
  padding: 0.75rem 1rem;
  border-radius: 10px;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.status-banner.error {
  border-color: var(--danger);
  color: var(--danger);
}

.loading {
  color: var(--text-dim);
}

.calendar-groups {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.location-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.location-heading {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--text);
}

.location-meta {
  margin-top: 0.2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.location-address {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.location-address a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px dotted var(--purple-dim);
}

.location-address a:hover {
  color: var(--purple-bright);
  border-bottom-color: var(--purple-bright);
}

.location-note {
  margin: 0.2rem 0 0;
  color: var(--purple-bright);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.location-heading::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--purple-bright);
  margin-right: 0.6rem;
  box-shadow: 0 0 8px var(--purple-bright);
}

.day-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
}

.day-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.1rem;
}

.day-card h3 {
  margin: 0 0 0.9rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.day-card .day-date {
  color: var(--purple-bright);
  font-weight: 800;
}

.slot-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.slot-btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--purple-dim);
  color: var(--text);
  padding: 0.55rem 0.8rem;
  border-radius: 8px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease, border-color 0.15s ease;
  font-family: inherit;
}

.slot-btn:hover {
  background: var(--purple-dim);
  border-color: var(--purple-bright);
  transform: translateY(-1px);
}

.slot-btn:disabled {
  background: transparent;
  border-color: var(--border);
  color: var(--text-dim);
  cursor: not-allowed;
  transform: none;
}

.slot-btn .badge {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

.site-footer {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 2rem 0 3rem;
}

/* Modal */

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 10;
  background: rgba(5, 4, 12, 0.75);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-backdrop[hidden] {
  display: none;
}

.modal {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.9rem;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.modal-close:hover { color: var(--text); }

.modal h2 {
  margin: 0 0 0.25rem;
  font-size: 1.3rem;
  font-weight: 800;
}

.modal-slot-label {
  color: var(--purple-bright);
  font-weight: 600;
  margin: 0 0 1.25rem;
}

#booking-form label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin: 0.9rem 0 0.35rem;
}

#booking-form input,
#booking-form textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.6rem 0.7rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
  resize: vertical;
}

#booking-form input:focus,
#booking-form textarea:focus {
  outline: none;
  border-color: var(--purple-bright);
}

.optional {
  color: var(--text-dim);
  font-weight: 400;
}

#submit-btn {
  width: 100%;
  margin-top: 1.5rem;
  background: linear-gradient(135deg, var(--purple), var(--purple-bright));
  color: #fff;
  border: none;
  padding: 0.75rem;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

#submit-btn:hover { opacity: 0.9; }
#submit-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.form-error {
  color: var(--danger);
  font-size: 0.85rem;
  margin-top: 0.75rem;
}

.confirmation h3 {
  margin: 0 0 0.5rem;
  color: var(--success);
  font-size: 1.2rem;
}

.confirmation-note {
  color: var(--text-dim);
  font-size: 0.85rem;
}

#confirmation-close {
  margin-top: 1rem;
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--purple-dim);
  color: var(--text);
  padding: 0.65rem;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
}

#confirmation-close:hover {
  border-color: var(--purple-bright);
}