@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;700&family=Manrope:wght@500;600&display=swap');

:root {
  --bg: radial-gradient(circle at 15% 15%, #0b6f86 0, #08283f 40%, #071827 100%);
  --card: rgba(7, 24, 39, 0.75);
  --card-strong: rgba(12, 43, 65, 0.85);
  --text: #f4f7fb;
  --muted: #a7b8c8;
  --accent: #e21e3a;
  --accent-2: #1cc7b6;
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 22px 44px rgba(2, 8, 16, 0.45);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Manrope', 'Space Grotesk', 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding: 32px;
}

.page {
  width: min(1200px, 100%);
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

header {
  background: var(--card);
  padding: 24px;
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

header h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.5px;
  font-family: 'Space Grotesk', 'Manrope', sans-serif;
}

header p {
  margin: 0;
  color: var(--muted);
}

.logo-slot {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  border: 1px dashed rgba(255, 255, 255, 0.4);
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 12px;
  background: rgba(7, 24, 39, 0.5);
  flex: 0 0 auto;
  overflow: hidden;
  padding: 6px;
}

.logo-slot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
}

.day-card {
  display: grid;
  gap: 10px;
}

.day-button {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 12px;
  text-align: left;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
  box-shadow: var(--shadow);
  display: grid;
  gap: 4px;
  text-decoration: none;
}

.day-button strong {
  display: block;
  font-size: 16px;
  margin-bottom: 4px;
}

.day-button span {
  color: var(--muted);
  font-size: 13px;
}

.day-meta {
  font-size: 12px;
  color: rgba(244, 247, 251, 0.75);
  display: block;
}

.day-button:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.day-button.active {
  background: var(--card-strong);
  border-color: var(--accent);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.3);
}

.month-section {
  background: rgba(7, 24, 39, 0.55);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
}

.month-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.month-header h2 {
  margin: 0;
  font-size: 20px;
  letter-spacing: 0.02em;
  font-family: 'Space Grotesk', 'Manrope', sans-serif;
  color: var(--text);
}

.month-header span {
  color: var(--muted);
  font-size: 13px;
}

.month-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  background: rgba(7, 24, 39, 0.45);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px;
}

.month-nav a {
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(7, 24, 39, 0.4);
  transition: border-color 120ms ease, transform 120ms ease;
}

.month-nav a:hover {
  border-color: var(--accent-2);
  transform: translateY(-1px);
}

.details {
  background: var(--card);
  border-radius: 18px;
  border: 1px solid var(--border);
  padding: 24px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 20px;
}

.details-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}

.tag {
  background: rgba(226, 30, 58, 0.18);
  color: #ffd3da;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(226, 30, 58, 0.45);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.info-card {
  background: var(--card-strong);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  min-height: 88px;
}

.info-card h3 {
  margin: 0 0 6px;
  font-size: 14px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
}

.info-card p {
  margin: 0;
  font-size: 16px;
  line-height: 1.4;
}

.embed-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.embed-card {
  background: rgba(10, 35, 56, 0.7);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  min-height: 180px;
  display: grid;
  gap: 10px;
}

.embed-frame {
  border: 1px dashed rgba(255, 255, 255, 0.22);
  border-radius: 12px;
  min-height: 420px;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 13px;
  background: rgba(7, 24, 39, 0.4);
}

.placeholder {
  color: var(--muted);
  font-weight: bold;
  margin: 4px 0 0;
  font-size: 14px;
}

.placeholder a {
  color: rgb(0, 184, 216);
  text-decoration: underline;
}

.placeholder a:hover {
  color: red;
}

.back-link {
  color: var(--accent);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.back-link:hover {
  border-color: var(--accent-2);
}

@media (max-width: 720px) {
  body { padding: 18px; }
  .rsvp form { grid-template-columns: 1fr; }
  header { flex-direction: column; align-items: flex-start; }
}