:root {
  --paper: #f6f0e3;
  --paper-raised: #fffcf5;
  --ink: #2a1c1c;
  --ink-soft: #74655d;
  --accent: #8c2f39;
  --accent-strong: #6c1f28;
  --accent-tint: #ecd9c8;
  --line: #e3d6bf;
  --unavailable-bg: #e9e2d0;
  --unavailable-text: #b7ab95;
  --shadow: 0 14px 34px rgba(42, 28, 28, 0.14);
  --radius: 12px;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #201517;
    --paper-raised: #2a1b1e;
    --ink: #f2e6d6;
    --ink-soft: #c2ab9c;
    --accent: #dd8f92;
    --accent-strong: #eaa7a9;
    --accent-tint: #3a2429;
    --line: #402a2c;
    --unavailable-bg: #2b1e20;
    --unavailable-text: #6c5850;
    --shadow: 0 14px 34px rgba(0, 0, 0, 0.45);
  }
}

:root[data-theme="dark"] {
  --paper: #201517;
  --paper-raised: #2a1b1e;
  --ink: #f2e6d6;
  --ink-soft: #c2ab9c;
  --accent: #dd8f92;
  --accent-strong: #eaa7a9;
  --accent-tint: #3a2429;
  --line: #402a2c;
  --unavailable-bg: #2b1e20;
  --unavailable-text: #6c5850;
  --shadow: 0 14px 34px rgba(0, 0, 0, 0.45);
}

:root[data-theme="light"] {
  --paper: #f6f0e3;
  --paper-raised: #fffcf5;
  --ink: #2a1c1c;
  --ink-soft: #74655d;
  --accent: #8c2f39;
  --accent-strong: #6c1f28;
  --accent-tint: #ecd9c8;
  --line: #e3d6bf;
  --unavailable-bg: #e9e2d0;
  --unavailable-text: #b7ab95;
  --shadow: 0 14px 34px rgba(42, 28, 28, 0.14);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(circle at 1px 1px, rgba(140, 47, 57, 0.05) 1px, transparent 0) 0 0 / 22px 22px,
    var(--paper);
  overflow-x: hidden;
}

.bg-hearts { display: none; }

.app {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.screen {
  display: none;
  width: 100%;
  max-width: 480px;
}

.screen.active {
  display: block;
  animation: fadeSlideIn 0.4s ease;
}

@media (prefers-reduced-motion: reduce) {
  .screen.active { animation: none; }
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.card {
  position: relative;
  background: var(--paper-raised);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 26px 26px;
  border-top: 4px solid var(--accent);
}

.card.center {
  text-align: center;
}

h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.7rem;
  line-height: 1.32;
  letter-spacing: 0.005em;
  text-wrap: balance;
  margin: 0 0 22px;
}

h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.4rem;
  text-wrap: balance;
  margin: 0 0 6px;
}

.step-label {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 6px;
}

.hint {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin: 0 0 18px;
}

.section-gap { margin-top: 24px; }

/* Buttons */
.btn {
  font-family: var(--sans);
  font-size: 0.98rem;
  font-weight: 600;
  padding: 13px 22px;
  border-radius: 9px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.btn:active { transform: scale(0.97); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn-primary {
  background: var(--accent);
  color: var(--paper-raised);
  box-shadow: 0 6px 16px rgba(108, 31, 40, 0.28);
}

.btn-primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-primary:not(:disabled):hover { transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1.5px solid var(--line);
}

.btn-secondary {
  background: var(--accent-tint);
  color: var(--accent-strong);
}

.ask-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.nav-buttons {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 26px;
}

.nav-buttons .btn { flex: 1; }

/* Name field */
.name-field {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 20px;
}

.name-field input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1.5px solid var(--line);
  background: var(--paper-raised);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.95rem;
}

.name-field input:focus {
  outline: none;
  border-color: var(--accent);
}

.name-field textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1.5px solid var(--line);
  background: var(--paper-raised);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.95rem;
  resize: vertical;
}

.name-field textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.or-divider {
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 14px 0;
}

/* Calendar */
.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.cal-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
}

.cal-nav {
  background: var(--accent-tint);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 1.1rem;
  color: var(--accent-strong);
  cursor: pointer;
}

.cal-nav:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  margin-bottom: 4px;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.day-cell {
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
  border: none;
  background: transparent;
  color: var(--ink);
}

.day-cell.blank { visibility: hidden; }

.day-cell.weekday {
  color: var(--line);
  cursor: default;
}

.day-cell.weekend-unavailable {
  background: var(--unavailable-bg);
  color: var(--unavailable-text);
  cursor: not-allowed;
  text-decoration: line-through;
}

.day-cell.weekend-available {
  background: var(--accent-tint);
  border: 1.5px solid var(--accent);
  color: var(--accent-strong);
  font-weight: 700;
  cursor: pointer;
}

.day-cell.weekend-available:hover {
  background: var(--accent);
  color: var(--paper-raised);
}

.day-cell.selected {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  color: var(--paper-raised) !important;
}

.calendar-legend {
  display: flex;
  gap: 16px;
  margin-top: 10px;
  font-size: 0.74rem;
  color: var(--ink-soft);
}

.dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-right: 4px;
}

.dot.available { background: var(--accent); }
.dot.unavailable { background: var(--unavailable-text); }

/* Pills (multi-select) */
.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  font-family: var(--sans);
  padding: 10px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--line);
  background: var(--paper-raised);
  color: var(--ink);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pill.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper-raised);
}

.pill:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* Option lists (single-select) */
.option-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.option {
  font-family: var(--sans);
  text-align: left;
  padding: 14px 16px;
  border-radius: 9px;
  border: 1.5px solid var(--line);
  background: var(--paper-raised);
  font-size: 0.95rem;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s ease;
}

.option.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper-raised);
}

.error-msg {
  color: var(--accent-strong);
  font-size: 0.85rem;
  text-align: center;
  margin: 12px 0 0;
  min-height: 1em;
}

.summary {
  text-align: left;
  background: var(--accent-tint);
  border-radius: 9px;
  padding: 16px;
  margin-top: 16px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--ink);
}

.summary b { color: var(--accent-strong); }

@media (min-width: 540px) {
  .card { padding: 40px 36px 34px; }
  h1 { font-size: 2rem; }
}