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

:root {
  --bg:       #07071a;
  --bg2:      #0e0e2a;
  --surface:  rgba(255,255,255,0.04);
  --surface2: rgba(255,255,255,0.08);
  --border:   rgba(255,255,255,0.1);
  --accent:   #6366f1;
  --accent2:  #a855f7;
  --text:     #f1f5f9;
  --muted:    #94a3b8;
  --radius:   14px;
  --shadow:   0 8px 32px rgba(0,0,0,0.4);
  --font:     'Inter', system-ui, -apple-system, sans-serif;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1 { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(1.3rem, 2.5vw, 1.9rem); font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 700; }
p  { color: var(--muted); }

.gradient-text {
  background: linear-gradient(135deg, #818cf8, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: 100px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: white; font-weight: 600; font-size: 0.95rem;
  border: none; cursor: pointer; transition: opacity .2s, transform .15s;
  text-decoration: none;
}
.btn-primary:hover { opacity: .9; transform: translateY(-1px); }

.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: 100px;
  border: 1.5px solid var(--border); color: var(--text);
  font-weight: 500; font-size: 0.9rem; cursor: pointer;
  transition: border-color .2s, background .2s; text-decoration: none;
}
.btn-outline:hover { border-color: var(--accent); background: rgba(99,102,241,.08); }

/* ── Nav ──────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(7,7,26,.85); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  height: 64px; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1rem; font-weight: 500; color: var(--text);
}
.nav-logo strong { font-weight: 700; }
.nav-cta { font-size: 0.85rem; padding: 8px 16px; }

/* ── Page hero ────────────────────────────────────────────────────────── */
.page-hero {
  max-width: 1200px; margin: 0 auto; padding: 56px 24px 32px;
}
.page-hero .section-label {
  display: inline-block; padding: 5px 14px;
  border-radius: 100px; font-size: 0.8rem; font-weight: 600;
  background: rgba(99,102,241,.15); color: #818cf8;
  border: 1px solid rgba(99,102,241,.25); margin-bottom: 14px;
}
.page-hero h1 { margin-bottom: 10px; }
.page-hero p  { font-size: 1rem; max-width: 560px; }

/* ── Card ─────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: rgba(99,102,241,.35); }

/* ── Calendar grid ────────────────────────────────────────────────────── */
.calendar-wrap {
  max-width: 1200px; margin: 0 auto; padding: 0 24px 64px;
}
.cal-header {
  display: flex; align-items: center; gap: 16px; margin-bottom: 28px;
}
.cal-header h2 { flex: 1; text-transform: capitalize; }
.cal-nav-btn {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1.5px solid var(--border); background: var(--surface2);
  color: var(--text); font-size: 1.1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, background .2s;
}
.cal-nav-btn:hover { border-color: var(--accent); background: rgba(99,102,241,.1); }

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}
.cal-weekday {
  text-align: center; font-size: 0.75rem; font-weight: 600;
  color: var(--muted); padding: 8px 0; text-transform: uppercase;
  letter-spacing: .05em;
}
.cal-day {
  min-height: 88px; padding: 8px 6px 6px;
  border-radius: 10px;
  border: 1px solid transparent;
  position: relative;
  transition: border-color .15s, background .15s;
}
.cal-day.has-events { background: var(--surface); border-color: var(--border); cursor: default; }
.cal-day.today .cal-day-num { background: var(--accent); color: white; }
.cal-day.other-month .cal-day-num { color: rgba(255,255,255,.2); }
.cal-day.other-month { opacity: .5; }
.cal-day-num {
  font-size: 0.8rem; font-weight: 600; color: var(--muted);
  width: 24px; height: 24px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 4px;
}
.cal-event-chip {
  display: block; padding: 3px 6px; border-radius: 5px;
  font-size: 0.7rem; font-weight: 600; line-height: 1.3;
  background: rgba(99,102,241,.2); color: #a5b4fc;
  border: 1px solid rgba(99,102,241,.3);
  margin-bottom: 3px; cursor: pointer;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: background .15s;
}
.cal-event-chip:hover { background: rgba(99,102,241,.4); }
.cal-event-chip.digital  { background: rgba(16,185,129,.15); color: #6ee7b7; border-color: rgba(16,185,129,.3); }
.cal-event-chip.digital:hover { background: rgba(16,185,129,.3); }
.cal-event-chip.hybrid   { background: rgba(245,158,11,.15); color: #fcd34d; border-color: rgba(245,158,11,.3); }
.cal-event-chip.hybrid:hover { background: rgba(245,158,11,.3); }

@media (max-width: 640px) {
  .cal-grid { gap: 2px; }
  .cal-day { min-height: 60px; padding: 5px 3px 3px; }
  .cal-event-chip { font-size: 0.6rem; padding: 2px 4px; }
}

/* ── Event list (below calendar) ──────────────────────────────────────── */
.events-list-section {
  max-width: 1200px; margin: 0 auto; padding: 0 24px 80px;
}
.events-list-title {
  font-size: 1.1rem; font-weight: 700; margin-bottom: 20px;
  color: var(--text);
}
.events-list-empty {
  color: var(--muted); font-size: 0.9rem; padding: 24px 0;
  text-align: center;
}
.event-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}
.event-card {
  display: flex; flex-direction: column;
  overflow: hidden; transition: transform .2s, border-color .2s;
  cursor: pointer; text-decoration: none; color: inherit;
}
.event-card:hover { transform: translateY(-3px); border-color: rgba(99,102,241,.4); }
.event-card-cover {
  width: 100%; height: 160px; object-fit: cover;
  border-radius: var(--radius) var(--radius) 0 0;
}
.event-card-cover-placeholder {
  width: 100%; height: 160px;
  background: linear-gradient(135deg, rgba(99,102,241,.2), rgba(168,85,247,.2));
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem;
  border-radius: var(--radius) var(--radius) 0 0;
}
.event-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; gap: 6px; }
.event-card-org { font-size: 0.75rem; color: var(--accent2); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.event-card-title { font-size: 1rem; font-weight: 700; color: var(--text); line-height: 1.35; }
.event-card-meta { display: flex; align-items: center; gap: 6px; font-size: 0.8rem; color: var(--muted); margin-top: 4px; }
.event-card-meta svg { flex-shrink: 0; color: var(--accent); }
.event-card-desc { font-size: 0.83rem; color: var(--muted); margin-top: 4px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.event-card-footer { padding: 12px 20px; border-top: 1px solid var(--border); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* ── Type badge ───────────────────────────────────────────────────────── */
.type-badge {
  display: inline-block; padding: 3px 10px; border-radius: 100px;
  font-size: 0.72rem; font-weight: 600; border: 1px solid;
}

/* ── Event detail page ────────────────────────────────────────────────── */
.event-detail {
  max-width: 900px; margin: 0 auto; padding: 40px 24px 80px;
}
.event-detail-cover {
  width: 100%; max-height: 420px; object-fit: cover;
  border-radius: var(--radius); margin-bottom: 36px;
}
.event-detail-cover-placeholder {
  width: 100%; height: 280px;
  background: linear-gradient(135deg, rgba(99,102,241,.15), rgba(168,85,247,.15));
  display: flex; align-items: center; justify-content: center;
  font-size: 4rem; border-radius: var(--radius); margin-bottom: 36px;
}
.event-detail-org { font-size: 0.8rem; color: var(--accent2); font-weight: 700; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 10px; }
.event-detail-title { margin-bottom: 20px; }
.event-detail-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.event-detail-meta {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px; margin-bottom: 32px;
}
.event-detail-meta-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 16px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--border);
}
.event-detail-meta-icon { color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.event-detail-meta-label { font-size: 0.75rem; color: var(--muted); }
.event-detail-meta-value { font-size: 0.9rem; font-weight: 600; color: var(--text); }
.event-detail-description {
  font-size: 0.95rem; color: var(--muted); line-height: 1.75;
  white-space: pre-wrap; margin-bottom: 40px;
}
.event-detail-cta {
  padding: 32px; border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(99,102,241,.08), rgba(168,85,247,.08));
  border: 1px solid rgba(99,102,241,.2);
  display: flex; flex-direction: column; align-items: flex-start; gap: 20px;
}
.event-detail-cta h3 { font-size: 1.2rem; }
.event-detail-cta-buttons { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Skeleton ─────────────────────────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--surface2) 25%, rgba(255,255,255,.07) 50%, var(--surface2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ── Error / empty ────────────────────────────────────────────────────── */
.error-state { text-align: center; padding: 48px 24px; color: var(--muted); }
.error-icon { font-size: 2.5rem; margin-bottom: 12px; }

/* ── Footer ───────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  text-align: center; padding: 24px;
  font-size: 0.8rem; color: var(--muted);
}
footer a { color: var(--accent); }
footer a:hover { text-decoration: underline; }

/* ── Fade-in ──────────────────────────────────────────────────────────── */
.fade-in { opacity: 0; transform: translateY(16px); transition: opacity .45s ease, transform .45s ease; }
.fade-in.visible { opacity: 1; transform: none; }

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .event-detail-cta { padding: 20px; }
  .event-detail-cta-buttons { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
}