/* Fit 預約系統 — 前台樣式（Agent C 所有；引用 base.css 變數） */

.hidden { display: none !important; }

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-line);
  box-shadow: var(--shadow);
}
.topbar-inner {
  max-width: 720px; margin: 0 auto; padding: 12px 16px;
  display: flex; align-items: center; justify-content: space-between;
}
.topbar-brand {
  font-weight: 700; font-size: 17px; color: var(--c-primary-dark);
  text-decoration: none;
}
.topbar-nav { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.topbar-nav a { color: var(--c-text); text-decoration: none; }
.topbar-nav .member-name { color: var(--c-primary-dark); font-weight: 600; }
.topbar-btn {
  border: 0; background: var(--c-primary); color: #fff;
  padding: 7px 14px; border-radius: var(--radius); font-size: 14px; cursor: pointer;
  font-family: var(--font);
}
.topbar-btn.ghost { background: transparent; color: var(--c-primary); border: 1px solid var(--c-primary); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 220px;
  display: flex; align-items: flex-end;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
}
.hero-fallback .hero-bg { display: none; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.05) 0%, rgba(0,0,0,.55) 100%);
}
.hero-inner {
  position: relative; z-index: 2;
  max-width: 720px; margin: 0 auto; padding: 32px 16px 22px; width: 100%;
  color: #fff;
}
.hero-inner h1 { margin: 0 0 6px; font-size: 24px; font-weight: 700; }
.hero-inner p { margin: 0; font-size: 14px; opacity: .92; }

/* ---------- Schedule ---------- */
.schedule { padding: 20px 0 60px; }
.date-group { margin-bottom: 22px; }
.date-heading {
  font-size: 15px; font-weight: 700; color: var(--c-primary-dark);
  margin: 0 0 10px; padding-left: 2px;
  display: flex; align-items: center; gap: 8px;
}
.date-heading .dow { font-weight: 400; color: var(--c-text-soft); font-size: 13px; }

.course-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 560px) {
  .course-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 860px) {
  .container.wide { max-width: 960px; }
  .course-grid { grid-template-columns: 1fr 1fr 1fr; }
}

.course-card {
  display: flex; flex-direction: column; overflow: hidden;
}
.course-card .thumb {
  position: relative; width: 100%; padding-top: 56%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
}
.course-card .thumb img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.course-card .thumb .cat-tag {
  position: absolute; left: 8px; top: 8px; z-index: 2;
  background: rgba(0,0,0,.45); color: #fff; font-size: 11px;
  padding: 3px 8px; border-radius: 999px;
}
.course-card .body { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 6px; }
.course-card .name { font-size: 16px; font-weight: 700; margin: 0; }
.course-card .meta { font-size: 13px; color: var(--c-text-soft); display: flex; flex-direction: column; gap: 2px; }
.course-card .meta .row { display: flex; align-items: center; gap: 6px; }
.course-card .seats { font-size: 13px; font-weight: 600; }
.course-card .seats.low { color: var(--c-danger); }
.course-card .actions { margin-top: 4px; }
.course-card .actions .btn { width: 100%; text-align: center; }

.empty-state, .load-state {
  text-align: center; color: var(--c-text-soft); padding: 40px 16px; font-size: 14px;
}

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(20,20,16,.5);
  display: flex; align-items: flex-end; justify-content: center; z-index: 100;
}
@media (min-width: 560px) {
  .modal-overlay { align-items: center; }
}
.modal-overlay.hidden { display: none; }
.modal-panel {
  background: var(--c-surface); width: 100%; max-width: 420px;
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 20px 20px 28px; max-height: 88vh; overflow-y: auto;
}
@media (min-width: 560px) {
  .modal-panel { border-radius: var(--radius); }
}
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.modal-head h2 { font-size: 17px; margin: 0; }
.modal-close { background: none; border: 0; font-size: 20px; color: var(--c-text-soft); cursor: pointer; line-height: 1; padding: 4px; }

.tabs { display: flex; gap: 6px; margin-bottom: 16px; border-bottom: 1px solid var(--c-line); }
.tab-btn {
  flex: 1; background: none; border: 0; padding: 10px 4px; font-size: 14px;
  color: var(--c-text-soft); cursor: pointer; border-bottom: 2px solid transparent;
  font-family: var(--font);
}
.tab-btn.active { color: var(--c-primary-dark); font-weight: 700; border-bottom-color: var(--c-primary); }

.form-field { margin-bottom: 12px; }
.form-field label { display: block; font-size: 13px; color: var(--c-text-soft); margin-bottom: 5px; }
.form-err { color: var(--c-danger); font-size: 13px; margin: 6px 0 0; min-height: 1em; }
.form-actions { margin-top: 16px; }
.form-actions .btn { width: 100%; }
.form-panel.hidden { display: none; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--c-text); color: #fff; padding: 10px 18px; border-radius: 999px;
  font-size: 14px; z-index: 200; box-shadow: var(--shadow); max-width: 88vw; text-align: center;
}
.toast.hidden { display: none; }
.toast.error { background: var(--c-danger); }

/* ---------- Member page ---------- */
.member-header {
  padding: 20px 16px; background: var(--c-surface); border-bottom: 1px solid var(--c-line);
}
.member-card { display: flex; align-items: center; justify-content: space-between; }
.member-card .info .name { font-size: 18px; font-weight: 700; margin: 0 0 2px; }
.member-card .info .sub { font-size: 13px; color: var(--c-text-soft); }
.member-card .credits { text-align: right; }
.member-card .credits .num { font-size: 20px; font-weight: 700; color: var(--c-accent); }
.member-card .credits .lbl { font-size: 12px; color: var(--c-text-soft); }

.mtabs { display: flex; margin: 16px 0 8px; border-bottom: 1px solid var(--c-line); }
.mtab-btn {
  flex: 1; background: none; border: 0; padding: 10px 4px; font-size: 14px;
  color: var(--c-text-soft); cursor: pointer; border-bottom: 2px solid transparent;
  font-family: var(--font);
}
.mtab-btn.active { color: var(--c-primary-dark); font-weight: 700; border-bottom-color: var(--c-primary); }
.mtab-panel.hidden { display: none; }

.booking-list { display: flex; flex-direction: column; gap: 10px; padding: 12px 0 60px; }
.booking-item {
  display: flex; gap: 12px; padding: 12px; align-items: center;
}
.booking-item .thumb {
  width: 64px; height: 64px; border-radius: 8px; overflow: hidden; flex: none;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  position: relative;
}
.booking-item .thumb img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.booking-item .info { flex: 1; min-width: 0; }
.booking-item .info .name { font-weight: 700; font-size: 15px; margin: 0 0 3px; }
.booking-item .info .time { font-size: 13px; color: var(--c-text-soft); }
.booking-item .info .status-tag {
  display: inline-block; margin-top: 4px; font-size: 11px; padding: 2px 8px; border-radius: 999px;
  background: var(--c-line); color: var(--c-text-soft);
}
.booking-item .info .status-tag.cancelled { background: #f3e2e0; color: var(--c-danger); }
.booking-item .info .status-tag.attended { background: #e3ecdd; color: var(--c-primary-dark); }
.booking-item .action { flex: none; }
.booking-item .reason { font-size: 12px; color: var(--c-danger); margin-top: 4px; max-width: 110px; text-align: right; }

.logout-row { padding: 8px 16px 30px; }
.logout-row .btn { width: 100%; }

.login-required {
  text-align: center; padding: 60px 16px; color: var(--c-text-soft);
}
.login-required .btn { margin-top: 14px; }