:root {
  --bg: #f7f9f8;
  --surface: #ffffff;
  --surface-soft: #eef7f4;
  --ink: #1f2933;
  --muted: #667085;
  --line: #d9e2df;
  --teal: #0f766e;
  --teal-dark: #0b5f59;
  --teal-soft: #d9f3ee;
  --blue: #2563eb;
  --blue-soft: #dbeafe;
  --amber: #b7791f;
  --amber-soft: #fff3d6;
  --rose: #be4458;
  --rose-soft: #ffe2e8;
  --green: #23845c;
  --green-soft: #dff6ea;
  --shadow: 0 18px 50px rgba(31, 41, 51, .08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--teal);
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 44px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 850;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nav a {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.hero,
.panel,
.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero {
  padding: 28px;
  margin-bottom: 20px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--teal);
  font-size: 13px;
  font-weight: 850;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.18;
}

h1 {
  margin-top: 14px;
  font-size: clamp(30px, 4vw, 48px);
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

.lead {
  max-width: 780px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  gap: 18px;
  align-items: start;
}

.layout-wide {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.panel {
  padding: 22px;
}

.card {
  padding: 18px;
  box-shadow: none;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.step {
  min-height: 86px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfc;
}

.step strong {
  display: block;
  margin-bottom: 4px;
}

.muted,
.help {
  color: var(--muted);
}

.help {
  margin: 8px 0 0;
  font-size: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: grid;
  gap: 7px;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  color: #344054;
  font-size: 14px;
  font-weight: 800;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfc;
  color: var(--ink);
  padding: 9px 11px;
}

.field textarea {
  min-height: 92px;
  resize: vertical;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 42px;
  padding: 9px 14px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  font-weight: 850;
}

.button.secondary {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}

.button.danger {
  background: #fff;
  border-color: var(--rose);
  color: var(--rose);
}

.button.warn {
  background: var(--amber);
}

.button:disabled {
  cursor: not-allowed;
  opacity: .48;
}

.status-banner {
  padding: 16px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
}

.status-banner.pending {
  background: var(--amber-soft);
  border-color: #f1d08b;
}

.status-banner.approved {
  background: var(--green-soft);
  border-color: #bfe8d0;
}

.status-banner.rejected,
.status-banner.cancelled {
  background: var(--rose-soft);
  border-color: #f4bdc7;
}

.date-list,
.slot-grid,
.metric-grid,
.record-list {
  display: grid;
  gap: 10px;
}

.date-list {
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
}

.date-card,
.slot,
.record {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 12px;
}

.date-card {
  text-align: left;
}

.date-card.active {
  border-color: var(--teal);
  background: var(--teal-soft);
}

.slot-grid {
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
}

.slot {
  min-height: 48px;
  color: var(--teal);
  font-weight: 850;
}

.slot.active {
  background: var(--teal);
  color: #fff;
  border-color: var(--teal);
}

.slot[disabled] {
  color: #98a2b3;
  background: #f2f4f7;
  border-style: dashed;
}

.metric-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metric {
  padding: 16px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fbfdfc;
}

.metric strong {
  display: block;
  font-size: 32px;
  line-height: 1.1;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table th,
.table td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.table th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.badge {
  display: inline-flex;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--teal);
  font-size: 12px;
  font-weight: 850;
}

.badge.pending { background: var(--amber-soft); color: var(--amber); }
.badge.approved { background: var(--green-soft); color: var(--green); }
.badge.rejected,
.badge.cancelled { background: var(--rose-soft); color: var(--rose); }

.message {
  min-height: 22px;
  margin-top: 12px;
  color: var(--muted);
  font-weight: 700;
}

.message.error {
  color: var(--rose);
}

.message.ok {
  color: var(--green);
}

.phone-frame,
.email-frame {
  max-width: 440px;
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #eef3f7;
  padding: 16px;
}

.phone-top {
  margin: -16px -16px 16px;
  padding: 14px 16px;
  border-radius: 8px 8px 0 0;
  background: var(--blue);
  color: #fff;
  font-weight: 850;
}

.chat-card,
.email-card {
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
  padding: 16px;
}

.email-frame {
  max-width: 720px;
  background: #fff;
}

.footer-note {
  margin-top: 24px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 880px) {
  .topbar,
  .layout {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: flex-start;
  }

  .steps,
  .metric-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .shell {
    width: min(100% - 20px, 1120px);
    padding-top: 16px;
  }

  .hero,
  .panel {
    padding: 16px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .table {
    display: block;
    overflow-x: auto;
  }
}