/* aftertaste HK — 訂座頁
   由 booking.html 原型經 build-booking.py 抽出,唔好手改。 */

/* ── 訂座頁 /booking?restaurant=slug ────────────────────────────────
   後台流程同原本一樣:getRestaurantBySlug、restaurantSettings/{slug}、
   訪客即場開戶、createBooking,完成後轉去 /mydashboard?booking=編號。 */
:root{
  --plum:#57233D; --plum-soft:#EFE3E8; --apricot:#D9884A; --apricot-text:#B16225;
  --success:#1F6B4A; --success-soft:#E3F0E8; --danger:#B3261E; --danger-soft:#FBE9E7;
  --bg:#F9F4EF; --card:#FFFFFF; --body:#2B2422; --muted:#6E605A; --line:#E7DDD3;
  --font:'Noto Sans HK',-apple-system,'PingFang HK','Microsoft JhengHei',sans-serif;
}
.at-bk,.at-bk *{box-sizing:border-box}
.at-bk{color:var(--body);font-family:var(--font);-webkit-font-smoothing:antialiased}
.at-bk h1,.at-bk h2,.at-bk h3,.at-bk p{margin:0;font-family:inherit;letter-spacing:normal}
.at-bk img{display:block;max-width:100%}
.at-bk a{color:inherit}
.at-bk button,.at-bk input,.at-bk textarea{font:inherit;color:inherit}
.at-bk .bk-submit{color:#fff}

.at-bk [hidden]{display:none!important}
.at-bk{max-width:1080px;margin:0 auto;padding:28px 24px 96px}

/* 頂部 */
.bk-back{display:inline-flex;gap:6px;font-size:14px;color:var(--muted);text-decoration:none}
.bk-back:hover{color:var(--plum)}
.bk-title{font-size:clamp(26px,3.4vw,36px);font-weight:600;color:var(--plum);margin-top:14px}
.bk-rest{display:flex;gap:14px;align-items:center;margin-top:14px}
.bk-logo{width:52px;height:52px;border-radius:14px;background:#fff;border:1px solid var(--line);overflow:hidden;flex:0 0 52px;
         display:flex;align-items:center;justify-content:center;color:var(--plum);font-weight:600;font-size:20px}
.bk-logo img{width:100%;height:100%;object-fit:cover}
.bk-rest-name{font-size:17px;font-weight:600}
.bk-rest-addr{font-size:13.5px;color:var(--muted);margin-top:2px}

.bk-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:32px;margin-top:28px;align-items:start}
.bk-form{display:flex;flex-direction:column;gap:16px;min-width:0}

/* 每一步一張卡;未到嗰步會淡咗 */
.bk-step{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px 24px;transition:opacity .2s ease}
.bk-step.locked{opacity:.45;pointer-events:none}
.bk-step-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.bk-num{width:28px;height:28px;border-radius:50%;background:var(--plum-soft);color:var(--plum);font-weight:600;font-size:13.5px;
        display:flex;align-items:center;justify-content:center;flex:0 0 28px}
.bk-step.done .bk-num{background:var(--plum);color:#fff}
.bk-step-title{font-size:17px;font-weight:600;color:var(--plum)}
.bk-step-val{margin-left:auto;font-size:14px;color:var(--muted);text-align:right}

/* 日曆 */
.bk-cal-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.bk-cal-month{font-weight:600;font-size:15px}
.bk-icon-btn{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--plum);cursor:pointer;font-size:18px;line-height:1}
.bk-icon-btn:disabled{opacity:.3;cursor:default}
.bk-week,.bk-cal{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.bk-week span{text-align:center;font-size:12px;color:var(--muted);padding:4px 0}
.bk-day{aspect-ratio:1;max-height:48px;border:0;border-radius:10px;background:none;cursor:pointer;font-size:14.5px;font-variant-numeric:tabular-nums;position:relative}
.bk-day:hover:not(:disabled){background:var(--bg)}
.bk-day:disabled{color:#CFC4BA;cursor:default}
.bk-day.today::after{content:'';position:absolute;left:50%;bottom:6px;width:4px;height:4px;border-radius:50%;background:var(--apricot);transform:translateX(-50%)}
.bk-day.sel{background:var(--plum);color:#fff;font-weight:600}

/* 時段 */
.bk-period+.bk-period{margin-top:16px}
.bk-period-name{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:8px}
.bk-slots{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:8px}
.bk-slot{border:1px solid var(--line);border-radius:12px;background:#fff;padding:10px 6px;cursor:pointer;text-align:center;line-height:1.3}
.bk-slot:hover{border-color:var(--plum)}
.bk-slot b{display:block;font-size:15px;font-weight:600;font-variant-numeric:tabular-nums}
.bk-slot small{display:block;font-size:11.5px;color:var(--success);margin-top:3px;font-weight:500}
.bk-slot.sel{background:var(--plum);border-color:var(--plum);color:#fff}
.bk-slot.sel small{color:rgba(255,255,255,.85)}
.bk-empty{font-size:14px;color:var(--muted)}

/* 人數 */
.bk-party{display:grid;grid-template-columns:repeat(8,1fr);gap:8px}
.bk-pax{height:46px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;font-size:15.5px;font-weight:600;font-variant-numeric:tabular-nums}
.bk-pax:hover{border-color:var(--plum)}
.bk-pax.sel{background:var(--plum);border-color:var(--plum);color:#fff}
.bk-hint{font-size:13px;color:var(--muted);margin-top:10px}
.bk-hint a{color:var(--plum);font-weight:600}

/* 表格 */
.bk-fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.bk-field{display:flex;flex-direction:column;gap:6px}
.bk-field.full{grid-column:1 / -1}
.bk-field label{font-size:13.5px;font-weight:500}
.bk-field label small{color:var(--muted);font-weight:400}
.bk-input{height:46px;border:1px solid var(--line);border-radius:12px;background:#fff;padding:0 14px;font-size:15px;width:100%}
textarea.bk-input{height:auto;padding:12px 14px;resize:vertical;min-height:84px;line-height:1.6}
.bk-input:focus{outline:none;border-color:var(--plum);box-shadow:0 0 0 3px rgba(87,35,61,.12)}
.bk-input.err{border-color:var(--danger)}
.bk-phone{display:flex}
.bk-phone span{display:flex;align-items:center;padding:0 12px;border:1px solid var(--line);border-right:0;border-radius:12px 0 0 12px;background:var(--bg);font-size:14.5px;color:var(--muted)}
.bk-phone .bk-input{border-radius:0 12px 12px 0}
.bk-err{font-size:12.5px;color:var(--danger)}
.bk-member{margin-top:16px;padding:14px 16px;border-radius:14px;background:var(--bg);font-size:14px;color:var(--muted)}
.bk-member a{color:var(--plum);font-weight:600}
.bk-guest{margin-top:16px;padding:18px;border-radius:16px;background:var(--bg);border:1px solid var(--line)}
.bk-guest-title{font-weight:600;font-size:15px}
.bk-guest-sub{font-size:13px;color:var(--muted);margin:4px 0 14px;line-height:1.7}
.bk-check{display:flex;gap:10px;align-items:flex-start;margin-top:12px;font-size:13px;color:var(--muted);line-height:1.6;cursor:pointer}
.bk-check input{width:18px;height:18px;margin-top:2px;accent-color:var(--plum);flex:0 0 18px}
.bk-check a{color:var(--plum)}

/* 右邊摘要 */
.bk-aside{position:sticky;top:24px}
.bk-sum{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 24px 48px -36px rgba(87,35,61,.45)}
.bk-sum-title{font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--apricot-text)}
.bk-rows{margin-top:12px;display:grid}
.bk-row{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.bk-row span{color:var(--muted);flex:0 0 auto}
.bk-row b{font-weight:500;text-align:right}
.bk-row b.pending{color:#B9ADA3;font-weight:400}
.bk-perk{margin-top:14px;border-radius:14px;background:var(--success-soft);color:var(--success);padding:14px}
.bk-perk b{display:block;font-size:17px;font-weight:600}
.bk-perk small{display:block;margin-top:4px;font-size:12.5px;line-height:1.6;color:#2F6B52}
.bk-perk.muted{background:var(--bg);color:var(--muted)}
.bk-perk.muted small{color:var(--muted)}
.bk-submit{margin-top:16px;width:100%;height:52px;border:0;border-radius:14px;background:var(--plum);color:#fff;font-size:16px;font-weight:600;cursor:pointer}
.bk-submit:disabled{opacity:.4;cursor:default}
.bk-submit:not(:disabled):hover{filter:brightness(1.08)}
.bk-submit-note{margin-top:10px;font-size:12.5px;color:var(--muted);text-align:center;line-height:1.6}
.bk-form-err{margin-top:12px;padding:10px 12px;border-radius:10px;background:var(--danger-soft);color:var(--danger);font-size:13px;line-height:1.6}

.bk-icon-btn:focus-visible,.bk-day:focus-visible,.bk-slot:focus-visible,.bk-pax:focus-visible,.bk-submit:focus-visible{outline:2px solid var(--apricot-text);outline-offset:2px}

/* 手機底部按鈕 */
.bk-bar{display:none}

/* 載入／錯誤／完成 */
.bk-state{max-width:520px;margin:60px auto;text-align:center;background:var(--card);border:1px solid var(--line);border-radius:22px;padding:40px 28px}
.bk-state h2{font-size:22px;color:var(--plum);font-weight:600;margin-bottom:8px}
.bk-state p{color:var(--muted);line-height:1.8;font-size:15px}
.bk-state .bk-submit{max-width:260px;margin:22px auto 0;display:flex;align-items:center;justify-content:center;text-decoration:none}
.bk-spin{width:34px;height:34px;border-radius:50%;border:3px solid var(--plum-soft);border-top-color:var(--plum);animation:bkspin .8s linear infinite;margin:0 auto 14px}
@keyframes bkspin{to{transform:rotate(360deg)}}
.bk-overlay{position:fixed;inset:0;z-index:1000;background:rgba(249,244,239,.94);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;font-weight:600;color:var(--plum)}

/* 同日已有訂座 */
.bk-modal{position:fixed;inset:0;z-index:1001;background:rgba(20,14,16,.45);display:flex;align-items:center;justify-content:center;padding:20px}
.bk-modal-card{background:#fff;border-radius:20px;padding:26px 24px;max-width:380px;width:100%;text-align:center}
.bk-modal-card h3{font-size:18px;color:var(--plum);margin-bottom:8px}
.bk-modal-card p{font-size:14px;color:var(--muted);line-height:1.7}
.bk-modal-btns{display:flex;gap:10px;margin-top:18px}
.bk-modal-btns>*{flex:1;height:46px;border-radius:12px;font-weight:600;display:flex;align-items:center;justify-content:center;text-decoration:none;cursor:pointer;font-size:14.5px}
.bk-modal-btns button{border:1px solid var(--line);background:#fff}
.bk-modal-btns a{background:var(--plum);color:#fff;border:0}

@media (max-width:860px){
  .bk-grid{grid-template-columns:1fr;gap:16px}
  .bk-aside{position:static}
}
@media (max-width:767px){
  .at-bk{padding:20px 16px 120px}
  .bk-step{padding:18px 16px;border-radius:18px}
  .bk-party{grid-template-columns:repeat(4,1fr)}
  .bk-fields{grid-template-columns:1fr}
  .bk-slots{grid-template-columns:repeat(3,1fr)}
  .bk-sum .bk-submit,.bk-sum .bk-submit-note{display:none}
  .bk-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:50;gap:12px;align-items:center;
          padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);
          -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--line)}
  .bk-bar-info{flex:1;min-width:0;font-size:13px;color:var(--muted);line-height:1.4}
  .bk-bar-info b{display:block;color:var(--body);font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .bk-bar .bk-submit{width:auto;margin:0;padding:0 22px;height:48px;flex:0 0 auto}
}
@media (prefers-reduced-motion:reduce){ .bk-step{transition:none} .bk-spin{animation-duration:2s} }

/* 讓出 Webflow 固定 nav bar 的高度 */
.at-bk{padding-top:calc(var(--at-nav,84px) + 28px)}
@media (min-width:861px){.bk-aside{top:calc(var(--at-nav,84px) + 24px)}}
@media (max-width:767px){.at-bk{padding-top:calc(var(--at-nav,0px) + 20px)}}