:root {
  --bg: #f4f2f8;
  --card: #ffffff;
  --text: #1f1b2e;
  --muted: #665f75;
  --border: #ddd7e8;
  --primary: #6750a4;
  --primary-soft: #eee7ff;
  --shadow: 0 8px 24px rgba(28, 18, 54, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

[hidden] { display: none !important; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 64px;
  display: grid;
  grid-template-columns: 48px 1fr 48px;
  align-items: center;
  padding: 0 12px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.topbar h1 {
  margin: 0;
  text-align: center;
  font-size: 1.25rem;
  font-weight: 700;
}

.icon-button, .small-button, .nav-button {
  border: 0;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
  cursor: pointer;
}

.icon-button { width: 42px; height: 42px; font-size: 1.25rem; }
.small-button { padding: 10px 14px; white-space: nowrap; }

.drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(0, 0, 0, 0.30);
}

.drawer {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  height: 100vh;
  width: min(330px, 86vw);
  background: var(--card);
  border-right: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 16px;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.drawer-header h2 { margin: 0; font-size: 1.2rem; }

.drawer-nav { display: grid; gap: 10px; }

.nav-button {
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  font-size: 1rem;
  background: transparent;
  color: var(--text);
}

.nav-button.active {
  background: var(--primary-soft);
  color: var(--primary);
}

.drawer-note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.layout {
  display: grid;
  grid-template-columns: minmax(300px, 420px) minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
  max-width: 1500px;
  margin: 0 auto;
}

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

.panel-header h2 { margin: 0; font-size: 1.15rem; }
.panel-header p { margin: 3px 0 0; color: var(--muted); font-size: 0.9rem; }

.trip-list, .day-list, .detail-grid { display: grid; gap: 12px; }

.trip-card, .day-card, .detail-card, .planner-card {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 22px;
  padding: 16px;
  box-shadow: var(--shadow);
}

.trip-card, .planner-card {
  text-align: left;
  cursor: pointer;
}

.trip-card.selected, .planner-card.selected {
  outline: 3px solid rgba(103, 80, 164, 0.25);
  border-color: var(--primary);
}

.trip-card h3, .detail-card h2, .day-card h3, .planner-card h3 { margin: 0 0 8px; }
.trip-card p, .detail-card p, .day-card p, .planner-card p { margin: 4px 0; color: var(--muted); }

.empty-state {
  min-height: 240px;
  border: 1px dashed var(--border);
  border-radius: 22px;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--muted);
  background: rgba(255,255,255,0.55);
}

.label { color: var(--text); font-weight: 700; }

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 5px 10px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
}

.error { border-color: #b3261e; color: #b3261e; }

.entry-section {
  margin-top: 6px;
}

.entry-section-title {
  margin: 0 0 4px;
  font-weight: 800;
  color: var(--text);
}

.entry-line-list {
  display: grid;
  gap: 3px;
  margin-top: 4px;
}

.entry-line {
  padding: 1px 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.32;
}

/* Ordered compact planner layout */
.planner-summary {
  padding: 12px 14px;
  border-radius: 18px;
}

.planner-summary h2 {
  font-size: 1.22rem;
  margin-bottom: 4px;
}

.planner-summary p {
  margin: 1px 0;
  font-size: 0.92rem;
}

.planner-ordered-list {
  display: grid;
  gap: 8px;
}

.planner-day-card {
  padding: 10px 12px;
  border-radius: 16px;
}

.planner-day-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 5px;
}

.planner-day-card h3 {
  font-size: 1rem;
  margin: 0;
  line-height: 1.2;
}

.planner-day-date {
  color: var(--muted);
  font-size: 0.86rem;
  white-space: nowrap;
}

.planner-day-card p {
  margin: 2px 0;
  font-size: 0.9rem;
}

.planner-activity-list {
  display: grid;
  gap: 4px;
  margin-top: 6px;
}

.planner-activity-row {
  display: grid;
  grid-template-columns: 66px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px 8px;
  background: #fff;
}

.planner-activity-time {
  color: var(--primary);
  font-weight: 800;
  font-size: 0.86rem;
  line-height: 1.2;
}

.planner-activity-main h4 {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.2;
}

.planner-activity-main p {
  margin: 1px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.25;
}

@media (max-width: 850px) {
  .layout {
    grid-template-columns: 1fr;
    padding: 12px;
  }

  .topbar { height: 58px; }

  .planner-activity-row {
    grid-template-columns: 56px minmax(0, 1fr);
  }
}