/* ============================================================
   Ms.Brow · LIFF 預約時段
   色票／字體沿用 ms-brow-snow-salon（neutral mist）
   ============================================================ */

:root {
  --bg:        oklch(0.985 0.003 75);
  --bg-elev:   oklch(0.993 0.002 75);
  --bg-veil:   oklch(0.96  0.006 80);
  --ink:       oklch(0.20  0.005 60);
  --ink-soft:  oklch(0.42  0.005 60);
  --ink-mute:  oklch(0.58  0.004 60);
  --hairline:      oklch(0.86 0.004 60);
  --hairline-soft: oklch(0.93 0.003 60);
  --accent:    oklch(0.55 0.018 60);

  --open:      oklch(0.52 0.075 155);
  --open-bg:   oklch(0.955 0.028 155);
  --booked:    oklch(0.60 0.090 45);
  --booked-bg: oklch(0.960 0.030 55);
  --closed:    oklch(0.66 0.004 60);

  --font-serif:  "Noto Serif TC", "Songti TC", serif;
  --font-sans:   "Noto Sans TC", "PingFang TC", -apple-system, sans-serif;
  --font-num:    "Manrope", "Helvetica Neue", sans-serif;

  --radius: 14px;
  --safe-b: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt" 1;
  overscroll-behavior-y: none;
}
button { font: inherit; color: inherit; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }

.app { max-width: 560px; margin: 0 auto; padding: 0 16px calc(24px + var(--safe-b)); }

/* ---------- Header ---------- */
.hd {
  position: sticky; top: 0; z-index: 20;
  margin: 0 -16px; padding: 14px 16px 12px;
  background: color-mix(in oklch, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--hairline-soft);
}
.hd-row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.hd h1 { margin: 0; font-family: var(--font-serif); font-size: 19px; font-weight: 500; letter-spacing: .04em; }
.hd .sub { font-size: 12px; color: var(--ink-mute); letter-spacing: .08em; }

/* ---------- 區塊 ---------- */
.sec { margin-top: 18px; }
.sec-hd {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 8px;
}
.sec-hd h2 {
  margin: 0; font-size: 12px; font-weight: 500;
  letter-spacing: .16em; color: var(--ink-mute);
}
.sec-hd .act { font-size: 12px; color: var(--accent); background: none; border: 0; padding: 4px 0; }

/* ---------- Chips ---------- */
.chips { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
.chips::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto;
  padding: 8px 15px; border-radius: 999px;
  border: 1px solid var(--hairline);
  background: var(--bg-elev); color: var(--ink-soft);
  font-size: 14px; white-space: nowrap;
  transition: background .15s, color .15s, border-color .15s;
}
.chip[aria-pressed="true"] {
  background: var(--ink); color: var(--bg); border-color: var(--ink);
}
.chip .n { font-family: var(--font-num); font-size: 12px; opacity: .65; margin-left: 5px; }

.chips-wrap { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- 月曆 ---------- */
.cal { margin-top: 4px; }
.cal-nav { display: flex; align-items: center; justify-content: center; gap: 18px; margin-bottom: 10px; }
.cal-nav button {
  width: 34px; height: 34px; border-radius: 999px;
  border: 1px solid var(--hairline); background: var(--bg-elev);
  display: grid; place-items: center; font-size: 15px;
}
.cal-nav button:disabled { opacity: .3; cursor: default; }
.cal-nav .label { font-family: var(--font-num); font-size: 16px; letter-spacing: .04em; min-width: 116px; text-align: center; }

.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.cal-dow {
  text-align: center; font-size: 11px; color: var(--ink-mute);
  letter-spacing: .08em; padding-bottom: 4px;
}
.cal-dow.sun, .cal-dow.sat { color: var(--accent); }

.day {
  position: relative; aspect-ratio: 1 / 1;
  border: 1px solid transparent; border-radius: 11px;
  background: transparent; padding: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
}
.day .d { font-family: var(--font-num); font-size: 15px; color: var(--ink-mute); }
.day.has { background: var(--bg-elev); border-color: var(--hairline-soft); }
.day.has .d { color: var(--ink); font-weight: 500; }
.day .cnt {
  font-family: var(--font-num); font-size: 10px; line-height: 1;
  color: var(--open); background: var(--open-bg);
  padding: 2px 5px; border-radius: 999px;
}
.day.none .cnt { color: var(--ink-mute); background: var(--bg-veil); }
.day[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); }
.day[aria-pressed="true"] .d { color: var(--bg); }
.day[aria-pressed="true"] .cnt { color: var(--ink); background: var(--bg); }
.day.today .d { text-decoration: underline; text-underline-offset: 3px; }
.day.out { visibility: hidden; }
.day.past .d { opacity: .3; }

.legend { display: flex; gap: 14px; justify-content: center; margin-top: 12px; font-size: 11px; color: var(--ink-mute); }
.legend i { display: inline-block; width: 8px; height: 8px; border-radius: 3px; margin-right: 5px; vertical-align: middle; }

/* ---------- 時段列表 ---------- */
.slots { margin-top: 16px; }
.slot-group {
  border: 1px solid var(--hairline-soft); border-radius: var(--radius);
  background: var(--bg-elev); padding: 12px 14px; margin-bottom: 10px;
}
.slot-group h3 {
  margin: 0 0 9px; font-size: 14px; font-weight: 500;
  display: flex; align-items: baseline; gap: 8px;
}
.slot-group h3 .meta { font-size: 11px; color: var(--ink-mute); letter-spacing: .06em; font-weight: 400; }
.slot-row { display: flex; flex-wrap: wrap; gap: 7px; }

.slot {
  font-family: var(--font-num); font-size: 14px; letter-spacing: .02em;
  padding: 8px 13px; border-radius: 9px;
  border: 1px solid var(--open); color: var(--open); background: var(--open-bg);
  min-width: 68px; text-align: center;
}
.slot:active { transform: scale(.97); }
.slot.booked { border-color: var(--hairline); color: var(--closed); background: var(--bg-veil); cursor: default; text-decoration: line-through; }
.slot.closed { border-style: dashed; border-color: var(--hairline); color: var(--closed); background: transparent; }

/* 客服端三態 */
.slot.adm { min-width: 74px; }
.slot.adm.open   { border-color: var(--open);   color: var(--open);   background: var(--open-bg); }
.slot.adm.booked { border-color: var(--booked); color: var(--booked); background: var(--booked-bg); text-decoration: none; cursor: pointer; }
.slot.adm.closed { border-color: var(--hairline); color: var(--closed); background: transparent; border-style: dashed; }
.slot .st { display: block; font-family: var(--font-sans); font-size: 10px; letter-spacing: .06em; opacity: .8; margin-top: 1px; }
.slot.saving { opacity: .45; }

/* ---------- 空狀態 / 載入 ---------- */
.empty { text-align: center; color: var(--ink-mute); font-size: 13px; padding: 28px 12px; }
.empty .big { font-family: var(--font-serif); font-size: 15px; color: var(--ink-soft); display: block; margin-bottom: 6px; }
.skeleton { height: 210px; border-radius: var(--radius); background: linear-gradient(90deg, var(--bg-veil), var(--bg-elev), var(--bg-veil)); background-size: 200% 100%; animation: sh 1.3s ease-in-out infinite; }
@keyframes sh { 0% { background-position: 200% 0 } 100% { background-position: -200% 0 } }

/* ---------- 底部彈窗 ---------- */
.sheet-mask {
  position: fixed; inset: 0; z-index: 50;
  background: oklch(0.2 0.005 60 / .38);
  display: flex; align-items: flex-end; justify-content: center;
  animation: fade .18s ease;
}
@keyframes fade { from { opacity: 0 } }
.sheet {
  width: 100%; max-width: 560px;
  background: var(--bg); border-radius: 20px 20px 0 0;
  padding: 20px 18px calc(18px + var(--safe-b));
  animation: rise .22s cubic-bezier(.2,.7,.3,1);
  max-height: 88vh; overflow-y: auto;
}
@keyframes rise { from { transform: translateY(24px); opacity: .6 } }
.sheet h2 { margin: 0 0 4px; font-family: var(--font-serif); font-size: 18px; font-weight: 500; }
.sheet .lead { margin: 0 0 16px; font-size: 12px; color: var(--ink-mute); }

.kv { display: grid; grid-template-columns: 76px 1fr; gap: 8px 10px; font-size: 14px; margin-bottom: 16px; }
.kv dt { color: var(--ink-mute); font-size: 12px; padding-top: 2px; }
.kv dd { margin: 0; }
.kv dd.hi { font-family: var(--font-num); font-size: 16px; }

.field { margin-bottom: 13px; }
.field label { display: block; font-size: 12px; color: var(--ink-mute); margin-bottom: 5px; letter-spacing: .06em; }
.field input, .field select, .field textarea {
  width: 100%; padding: 10px 12px;
  border: 1px solid var(--hairline); border-radius: 10px;
  background: var(--bg-elev);
}
.field textarea { min-height: 62px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.btn-row { display: flex; gap: 10px; margin-top: 6px; }
.btn {
  flex: 1; padding: 13px 16px; border-radius: 11px;
  border: 1px solid var(--ink); background: var(--ink); color: var(--bg);
  font-size: 15px; letter-spacing: .04em;
}
.btn.ghost { background: transparent; color: var(--ink-soft); border-color: var(--hairline); }
.btn:disabled { opacity: .5; }
.btn.sm { flex: 0 0 auto; padding: 8px 14px; font-size: 13px; border-radius: 9px; }

.note-box {
  font-size: 12px; color: var(--ink-mute); line-height: 1.65;
  background: var(--bg-veil); border-radius: 10px; padding: 10px 12px; margin: 14px 0 4px;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: calc(26px + var(--safe-b)); transform: translateX(-50%);
  z-index: 90; max-width: 88vw;
  background: var(--ink); color: var(--bg);
  padding: 11px 18px; border-radius: 999px; font-size: 13px;
  box-shadow: 0 6px 24px oklch(0.2 0.005 60 / .22);
  animation: rise .2s ease;
}
.toast.err { background: oklch(0.45 0.13 25); }

/* ---------- 客服端專用 ---------- */
.admin-bar {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  margin-top: 12px; padding: 10px 12px;
  background: var(--bg-veil); border-radius: 11px; font-size: 12px; color: var(--ink-soft);
}
.admin-bar .who { font-weight: 500; }
.admin-bar .spacer { flex: 1; }
.tabs { display: flex; gap: 6px; margin-top: 14px; }
.tabs button {
  flex: 1; padding: 9px; border-radius: 9px; font-size: 14px;
  border: 1px solid var(--hairline); background: var(--bg-elev); color: var(--ink-soft);
}
.tabs button[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.tabs button .badge {
  display: inline-block; min-width: 18px; margin-left: 6px; padding: 0 5px;
  border-radius: 999px; background: var(--booked); color: #fff;
  font-family: var(--font-num); font-size: 11px; line-height: 18px;
}

.req {
  border: 1px solid var(--hairline-soft); border-radius: var(--radius);
  background: var(--bg-elev); padding: 13px 14px; margin-bottom: 10px;
}
.req.done { opacity: .55; }
.req .top { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.req .when { font-family: var(--font-num); font-size: 16px; }
.req .tag { font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--booked-bg); color: var(--booked); }
.req .tag.done { background: var(--open-bg); color: var(--open); }
.req .tag.cancelled { background: var(--bg-veil); color: var(--ink-mute); }
.req .line { font-size: 13px; color: var(--ink-soft); margin-top: 5px; }
.req .line b { font-weight: 500; color: var(--ink); }
.req .acts { display: flex; gap: 8px; margin-top: 11px; flex-wrap: wrap; align-items: center; }
.req .chk { flex: 1 1 100%; font-size: 12px; color: var(--ink-mute); display: flex; align-items: center; gap: 6px; }

.login { max-width: 340px; margin: 14vh auto 0; padding: 0 4px; }
.login h1 { font-family: var(--font-serif); font-size: 22px; font-weight: 500; margin: 0 0 6px; }
.login p { font-size: 13px; color: var(--ink-mute); margin: 0 0 22px; }

.setup-msg {
  max-width: 460px; margin: 12vh auto; padding: 22px;
  border: 1px solid var(--hairline); border-radius: var(--radius); background: var(--bg-elev);
  font-size: 14px; line-height: 1.8;
}
.setup-msg code { font-family: var(--font-num); background: var(--bg-veil); padding: 1px 6px; border-radius: 5px; font-size: 13px; }

/* ---------- 無法一鍵送出時的備援畫面 ---------- */
a.btn { display: block; text-align: center; text-decoration: none; }
.linkbtn {
  background: none; border: 0; padding: 12px 4px 0;
  font-size: 13px; color: var(--accent);
  text-decoration: underline; text-underline-offset: 3px;
}
.diag { margin: 12px 0 0; font-size: 11px; line-height: 1.5; color: var(--ink-mute); text-align: center; }

/* ---------- 客人端：可預約時段列表（一天一行，時間以 / 分隔） ---------- */
.avail { margin-top: 2px; }
.avail-row {
  display: grid; grid-template-columns: 58px 1fr; column-gap: 8px; align-items: baseline;
  padding: 0;
}
.avail-date {
  font-family: var(--font-num); font-size: 15px; font-weight: 500;
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.avail-date .dow { margin-left: 4px; font-family: var(--font-sans); font-size: 11px; font-weight: 400; color: var(--ink-mute); }
.avail-times { font-family: var(--font-num); font-variant-numeric: tabular-nums; }
.avail-cell { display: inline-block; white-space: nowrap; }
.avail-time {
  background: none; border: 0; border-radius: 7px;
  padding: 6px 3px; margin: 0 -3px;
  font: inherit; font-size: 15px; color: var(--ink);
  text-decoration: underline; text-decoration-color: var(--hairline); text-underline-offset: 4px;
}
.avail-time:active { background: var(--open-bg); color: var(--open); }
.avail-sep { color: var(--ink-mute); margin: 0 4px; }
/* 實測：5 個時段在 375px 以下會擠成兩行，窄螢幕改用 14px（360px 仍保留 12px 餘裕） */
@media (max-width: 389px) { .avail-time { font-size: 14px; } }

/* 確認視窗：不指定老師時選美睫師 */
.pick-staff { display: flex; flex-wrap: wrap; gap: 6px; }
.pick-staff .chip { padding: 6px 12px; font-size: 13px; }
.pick-hint { margin-top: 6px; font-size: 11px; color: var(--ink-mute); }