:root {
  --bg: #141414;
  --bg-elevated: #1e1e1e;
  --card: #262626;
  --accent: #cad749;
  --accent-dim: #949f38;
  --text: #f3f3ee;
  --text-dim: #b9b9b2;
  --border: #333;
  --radius: 14px;
  --max-width: 1080px;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  padding-bottom: env(safe-area-inset-bottom);
}

a {
  color: var(--accent);
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px 48px;
}

/* header */
.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 16px 14px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo-badge {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-elevated);
  border: 1.5px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 5px;
}

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

.topbar h1 {
  font-size: 1.05rem;
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.topbar .sub {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* hero */
.hero {
  padding: 8px 0 22px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-text {
  flex: 1;
  min-width: 220px;
}

.hero-qr {
  flex-shrink: 0;
  text-align: center;
}

.hero-qr-box {
  background: #fff;
  border-radius: 10px;
  padding: 6px;
  width: 92px;
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-qr-box svg {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-qr-caption {
  margin: 6px 0 0;
  font-size: 0.68rem;
  color: var(--text-dim);
  max-width: 92px;
}

@media (max-width: 480px) {
  .hero-qr {
    display: none;
  }
}

.hero h2 {
  font-size: clamp(1.6rem, 5.5vw, 2.4rem);
  margin: 0 0 6px;
  letter-spacing: 0.01em;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--accent);
}

.hero .valid-note {
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.82rem;
  margin: 0;
}

.week-range {
  color: var(--text);
  font-weight: 600;
  font-size: 0.82rem;
  margin: 4px 0 0;
}

.updated-note {
  color: var(--text-dim);
  font-size: 0.78rem;
  margin: 6px 0 0;
}

/* plan grid — poster style, mirrors a printed weekly schedule */
.poster {
  position: relative;
  background: linear-gradient(180deg, #1e1e1e, #121212);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  margin-top: 8px;
  overflow: hidden;
}

.poster-scroll {
  position: relative;
  z-index: 1;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.plan-table {
  display: grid;
  grid-template-columns: repeat(5, minmax(118px, 1fr));
  gap: 6px;
  min-width: 620px;
}

.plan-head {
  color: var(--text);
  font-weight: 800;
  text-transform: uppercase;
  text-align: center;
  padding: 4px 4px 12px;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.plan-cell {
  border-radius: 8px;
  padding: 10px 8px;
  min-height: 52px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.plan-cell.filled {
  background: #eceae1;
  color: #17170f;
  position: relative;
}

.plan-cell.filled.subscribable {
  cursor: pointer;
  border: none;
  font: inherit;
  width: 100%;
}

.plan-cell.filled.subscribable:hover {
  background: #e2dfd2;
}

.plan-cell.filled.subscribable:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.plan-cell.filled.subscribable::after {
  content: "🔔";
  position: absolute;
  top: 4px;
  right: 6px;
  font-size: 0.7rem;
  opacity: 0.55;
}

.plan-cell.filled .title {
  font-weight: 800;
  font-size: 0.8rem;
  line-height: 1.25;
}

.plan-cell.filled .time {
  font-weight: 600;
  font-size: 0.72rem;
  margin-top: 3px;
  color: #4a4a3d;
}

.plan-cell.filled.cancelled {
  background: #cdccc4;
}

.plan-cell.filled.cancelled .title,
.plan-cell.filled.cancelled .time {
  text-decoration: line-through;
  color: #6b6a62;
}

.cancelled-stamp {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-10deg);
  background: #c81e2c;
  color: #fff;
  font-weight: 800;
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 3px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.35);
  pointer-events: none;
  white-space: nowrap;
}

.plan-cell.empty {
  background: var(--accent);
}

.plan-divider {
  grid-column: 1 / -1;
  height: 3px;
  background: var(--accent);
  margin: 3px 0;
  border-radius: 2px;
}

.plan-empty-state {
  color: var(--text-dim);
  padding: 10px 4px;
  text-align: center;
}

/* install section */
.install-card {
  margin-top: 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 4px;
}

.install-card summary {
  cursor: pointer;
  padding: 14px 16px;
  font-weight: 700;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.install-card summary::-webkit-details-marker {
  display: none;
}

.install-card summary::after {
  content: "+";
  color: var(--accent);
  font-size: 1.3rem;
  line-height: 1;
}

.install-card[open] summary::after {
  content: "\2212";
}

.install-body {
  padding: 4px 16px 18px;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.install-body h4 {
  margin: 0 0 6px;
  font-size: 0.92rem;
  color: var(--accent);
}

.install-body ol {
  margin: 0;
  padding-left: 18px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.install-body li {
  margin-bottom: 4px;
}

.install-btn {
  margin-top: 10px;
  background: var(--accent);
  color: #141414;
  border: none;
  font-weight: 700;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  cursor: pointer;
}

.install-btn:disabled {
  opacity: 0.5;
  cursor: default;
}

.qr-link-card {
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.qr-link-card:hover {
  border-color: var(--accent);
  background: #232323;
}

.qr-link-icon {
  font-size: 1.3rem;
  color: var(--accent);
  flex-shrink: 0;
}

.qr-link-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.qr-link-title {
  font-weight: 700;
  font-size: 0.9rem;
}

.qr-link-sub {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.qr-link-arrow {
  color: var(--accent);
  font-size: 1.1rem;
  flex-shrink: 0;
}

footer.site-footer {
  text-align: center;
  padding: 18px 16px 30px;
  color: var(--text-dim);
  font-size: 0.75rem;
}

/* QR page */
.qr-page {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 16px;
}

.qr-page-logo {
  width: 140px;
  height: auto;
}

.qr-page h1 {
  font-size: 1.4rem;
  margin: 18px 0 4px;
}

.qr-page p {
  color: var(--text-dim);
  margin: 0 0 22px;
  max-width: 360px;
}

.qr-box {
  background: #fff;
  padding: 18px;
  border-radius: 16px;
  display: inline-block;
}

.qr-box canvas,
.qr-box img {
  display: block;
}

.qr-url {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--text-dim);
  word-break: break-all;
}

/* subscribe modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
}

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

.modal-box {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 420px;
  width: 100%;
}

.modal-box h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.modal-course-info {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 0 16px;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px;
}

#subscribeForm {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

#subscribeForm label {
  font-size: 0.8rem;
  color: var(--text-dim);
}

#subscribeForm input[type="email"] {
  background: #111;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
}

#subscribeForm input[type="email"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.modal-consent {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--text-dim);
}

.modal-consent input {
  margin-top: 2px;
  flex-shrink: 0;
}

.modal-submit {
  margin-top: 4px;
  background: var(--accent);
  color: #141414;
  border: none;
  font-weight: 700;
  padding: 11px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  cursor: pointer;
}

.modal-submit:disabled {
  opacity: 0.6;
  cursor: default;
}

.form-msg {
  min-height: 1.1em;
  font-size: 0.82rem;
  margin: 2px 0 0;
}

.form-msg.error {
  color: #ff6b6b;
}

.form-msg.success {
  color: var(--accent);
}

@media print {
  body {
    background: #fff;
    color: #111;
  }
  .qr-box {
    box-shadow: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}