/* ============================================================
   B2H SOLAR ENERGY — shared stylesheet
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@300;400;500;600;700;800&family=Noto+Sans+Thai:wght@400;500;600;700&display=swap');
:root{
  --teal-1:#00c9a7;
  --teal-2:#00e0b8;
  --teal-dark:#00a389;
  --green:#3cb043;
  --orange:#ff8a3d;
  --ink:#1c2b2a;
  --ink-soft:#4a5a58;
  --bg:#f5faf9;
  --card:#ffffff;
  --border:#e2ece9;
  --danger:#e0473c;
  --shadow:0 6px 20px rgba(0,60,50,.08);
  --radius:12px;
  font-size:16px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:"Kanit","Noto Sans Thai","Segoe UI",Tahoma,Arial,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.6;
}
h1,h2,h3,h4,h5,h6,.tb-text,.btn,.nav-links>li>a,.nav-admin,.btn-register{font-family:"Kanit","Noto Sans Thai","Segoe UI",Tahoma,Arial,sans-serif;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}

/* ---------- Topbar (editable: logo, text, free-drag positioning) ---------- */
.topbar{
  /* ชั้นบน: ไล่สีจากตระกูลเดียวกับโลโก้ (เฉดสี 172° = สีมิ้นต์ในโลโก้) โปร่งเล็กน้อย
     ชั้นล่าง: ลายเส้นพลังงานสะอาด (ดวงอาทิตย์/กังหันลม/แผงโซล่าร์/บ้าน/ใบไม้)
               อยู่ในไฟล์ images/topbar-pattern.svg แก้ลายได้ที่ไฟล์นั้นโดยตรง
     สีอ่อนกว่าเดิม แต่ยังคอนทราสต์กับตัวอักษรขาว 7.5:1 และ 4.8:1 (ผ่านมาตรฐาน AA) */
  background:
    linear-gradient(100deg,rgba(11,96,85,.86),rgba(14,129,113,.80)),
    url("../images/topbar-pattern.svg");
  background-color:#0b6055;
  background-size:cover,cover;
  background-position:center,center;
  background-repeat:no-repeat,no-repeat;
  color:#fff;
  position:relative;z-index:60;   /* ให้สูงกว่าแถบเมนู (z-index 50) โลโก้ที่ลากมาวาง
                                     แล้วขยายจนล้นลงมา จะยังกดปุ่มย่อ/ขยายได้อยู่ */
}
.topbar-inner{
  max-width:1200px;margin:0 auto;padding:34px 20px;min-height:137px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.topbar-canvas{position:relative;flex:1 1 400px;display:flex;align-items:center;gap:16px;min-height:50px;}
.tb-el{position:relative;display:flex;align-items:center;}
.tb-el.tb-dragged{position:absolute;z-index:5;}
.tb-el.tb-editable{outline:2px dashed rgba(255,255,255,.6);outline-offset:6px;border-radius:8px;}

.tb-logo{gap:6px;align-self:center;}   /* โลโก้อยู่กลางบรรทัดเสมอ ไม่ว่าจะย่อหรือขยาย */
.logo-link{display:flex;align-items:center;}
.sun{
  width:59px;height:59px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,var(--orange),#ffb15c 60%,var(--green) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;flex:none;
}
/* โลโก้ B2H — ไฟล์พื้นหลังโปร่งใส จึงไม่ต้องมีแผ่นรอง ใส่เงาอ่อน ๆ ให้ดูลอยเด่นขึ้น
   กำหนดเฉพาะความกว้าง (จาก logoSize) ส่วนความสูงปล่อยอัตโนมัติ สัดส่วนภาพจะไม่เพี้ยน */
.logo-img{width:175px;height:auto;object-fit:contain;flex:none;
  filter:drop-shadow(0 3px 8px rgba(0,0,0,.35));
  transition:width .12s;}
/* ปุ่ม − / + ย่อ-ขยายโลโก้ (เห็นเฉพาะโหมดผู้ดูแล) */
.tb-size-btn{
  width:22px;height:22px;border-radius:50%;background:rgba(0,0,0,.35);color:#fff;border:none;
  font-size:14px;line-height:1;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;flex:none;padding:0;font-weight:700;
}
.tb-size-btn:hover{background:rgba(0,0,0,.55);}
.tb-size-val{font-size:11px;color:#fff;background:rgba(0,0,0,.35);border-radius:10px;padding:2px 7px;min-width:26px;text-align:center;}

.tb-text{gap:8px;font-weight:800;letter-spacing:.5px;}
.tb-text .txt{display:flex;flex-direction:column;line-height:1.15;}
.tb-text .txt b{font-size:28px;text-shadow:0 2px 6px rgba(0,0,0,.45);}
.tb-text .txt span{font-size:15px;font-weight:500;opacity:1;color:#bff5ea;text-shadow:0 1px 4px rgba(0,0,0,.4);}
.tb-text .txt [contenteditable="true"]{outline:none;border-radius:4px;padding:1px 4px;cursor:text;}
.tb-text .txt [contenteditable="true"]:hover,.tb-text .txt [contenteditable="true"]:focus{background:rgba(255,255,255,.18);}

.tb-admin-controls{display:none;align-items:center;gap:4px;}
.tb-drag-handle{
  width:22px;height:22px;border-radius:50%;background:rgba(0,0,0,.35);color:#fff;border:none;
  font-size:12px;display:none;align-items:center;justify-content:center;cursor:grab;flex:none;padding:0;
}
.tb-admin-controls .tb-drag-handle{display:inline-flex;} /* shown whenever its parent controls are shown */
.tb-drag-handle:active{cursor:grabbing;}
.tb-upload-btn{
  width:22px;height:22px;border-radius:50%;background:rgba(0,0,0,.35);color:#fff;
  font-size:11px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;flex:none;
}
.tb-remove-btn{
  width:22px;height:22px;border-radius:50%;background:rgba(0,0,0,.35);color:#fff;border:none;
  font-size:11px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;flex:none;padding:0;
}

@media(max-width:640px){
  .topbar-inner{padding:16px 20px;min-height:auto;}
  .contact-block{font-size:13px;gap:14px;flex-wrap:wrap;justify-content:center;}
  .contact-block .icon{width:28px;height:28px;}
  .btn-register{font-size:12px;padding:7px 14px;}
}

.contact-block{display:flex;align-items:center;gap:31px;font-size:20px;}
.contact-block .item{display:flex;align-items:center;gap:8px;}
.contact-block .icon{
  width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.28);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.btn-register{
  background:#fff;color:var(--teal-dark);font-weight:700;font-size:18px;
  padding:11px 22px;border-radius:8px;display:flex;align-items:center;gap:8px;white-space:nowrap;
}

/* ---------- Nav ---------- */
.navbar{background:#fff;border-bottom:1px solid var(--border);position:relative;z-index:50;}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0;flex-wrap:wrap;}
.nav-links > li{position:relative;}
.nav-links > li > a{
  display:block;padding:16px 14px;font-weight:600;font-size:15px;color:var(--ink);
  border-bottom:3px solid transparent;
}
.nav-links > li > a:hover,.nav-links > li.active > a{color:var(--teal-dark);border-bottom-color:var(--teal-1);}
.nav-links .caret{font-size:10px;margin-left:4px;opacity:.6;}

.dropdown{
  position:absolute;top:100%;left:0;background:#fff;min-width:230px;
  box-shadow:var(--shadow);border-radius:0 0 10px 10px;border:1px solid var(--border);border-top:none;
  display:none;padding:8px 0;
}
.nav-links > li:hover .dropdown,.nav-links > li.open .dropdown{display:block;}
.dropdown a{display:block;padding:10px 20px;font-size:14px;color:var(--ink-soft);}
.dropdown a:hover{background:var(--bg);color:var(--teal-dark);}

.nav-admin{
  padding:8px 14px;background:var(--ink);color:#fff !important;border-radius:8px;font-size:13px;font-weight:600;
  display:flex;align-items:center;gap:6px;
}
.nav-admin:hover{background:var(--teal-dark);}

/* ---------- Hero (editable, timed slideshow) ---------- */
.hero{
  background:linear-gradient(120deg,#046656,#00a389 60%,#00c9a7);
  color:#fff;padding:90px 0 104px;min-height:460px;display:flex;align-items:center;
  position:relative;overflow:hidden;transition:background 1.1s ease;
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:40px;flex-wrap:wrap;width:100%;}
.hero-text{flex:1 1 400px;}
.hero-text h1{font-size:40px;margin:0 0 14px;line-height:1.25;}
.hero-text p{font-size:16px;opacity:.95;max-width:480px;}
.hero-text .btn{margin-top:18px;}
.hero-visual{flex:1 1 320px;min-height:240px;border-radius:var(--radius);
  background:rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;font-size:80px;overflow:hidden;}
.hero-dots{position:absolute;left:0;right:0;bottom:64px;display:flex;justify-content:center;gap:8px;z-index:3;}
.hero-dot{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.4);border:none;cursor:pointer;padding:0;transition:background .2s,transform .2s;}
.hero-dot.active{background:#fff;transform:scale(1.3);}
@media(max-width:560px){.hero{padding:60px 0 76px;min-height:auto;}.hero-text h1{font-size:30px;}}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:8px;font-weight:700;font-size:14px;border:none;}
.btn-primary{background:var(--orange);color:#fff;}
.btn-primary:hover{background:#e97a2c;}
.btn-outline{background:transparent;border:2px solid #fff;color:#fff;}
.btn-teal{background:var(--teal-dark);color:#fff;}
.btn-teal:hover{background:#008a72;}
.btn-danger{background:var(--danger);color:#fff;}
.btn-ghost{background:var(--bg);color:var(--ink);border:1px solid var(--border);}
.btn-sm{padding:6px 12px;font-size:12px;border-radius:6px;}

/* ---------- Sections / cards ---------- */
.section{padding:50px 0;}
.section-title{text-align:center;margin-bottom:34px;}
.section-title h2{font-size:26px;margin:0 0 8px;}
.section-title p{color:var(--ink-soft);font-size:14px;}

.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px;}
.cat-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 20px;text-align:center;box-shadow:var(--shadow);transition:transform .15s;
}
.cat-card:hover{transform:translateY(-4px);}
.cat-card .ic{
  width:64px;height:64px;border-radius:50%;margin:0 auto 14px;
  background:linear-gradient(135deg,var(--teal-1),var(--teal-2));
  display:flex;align-items:center;justify-content:center;font-size:28px;color:#fff;
}
.cat-card h3{font-size:15px;margin:0 0 4px;}
.cat-card span{font-size:12px;color:var(--ink-soft);}

.feature-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;margin-top:-40px;position:relative;z-index:2;}
.feature-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;text-align:center;}
.feature-card .ic{font-size:30px;margin-bottom:8px;}

/* ---------- Home page layout blocks (feature row / category grid /
   admin-added banner strips, reorderable — see js/app.js renderHomeBlocks) ---------- */
.home-block + .home-block{margin-top:0.5cm;}
.home-block-admin{position:relative;outline:2px dashed transparent;outline-offset:4px;border-radius:8px;transition:outline-color .15s;}
.home-block-admin:hover{outline-color:var(--teal-1);}
.home-block-admin.dragging{opacity:.35;}
.home-block-handle{
  position:absolute;top:8px;right:8px;z-index:6;background:rgba(4,102,86,.9);color:#fff;font-size:11.5px;
  padding:5px 12px;border-radius:20px;cursor:grab;user-select:none;display:flex;align-items:center;gap:5px;
  box-shadow:var(--shadow);
}
.home-block-handle:active{cursor:grabbing;}
.home-banner{display:grid;gap:14px;}
.home-banner-img{background-size:cover;background-position:center;border-radius:var(--radius);box-shadow:var(--shadow);}
@media(max-width:640px){
  .home-banner{grid-template-columns:1fr !important;height:auto !important;gap:10px;}
  .home-banner-img{height:160px;}
}
.feature-card h4{font-size:14px;margin:0 0 4px;}
.feature-card p{font-size:12px;color:var(--ink-soft);margin:0;}

/* ---------- Breadcrumb ---------- */
.breadcrumb{font-size:13px;color:var(--ink-soft);padding:16px 0;}
.breadcrumb a:hover{color:var(--teal-dark);}

/* ---------- Product grid (category page) ---------- */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:22px;}
.product-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .15s;}
.product-card:hover{transform:translateY(-4px);}
.product-card .thumb{aspect-ratio:1/1;background:var(--bg);display:flex;align-items:center;justify-content:center;overflow:hidden;}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;}
.product-card .info{padding:14px 16px 18px;flex:1;display:flex;flex-direction:column;}
.product-card .cat-tag{font-size:11px;color:var(--teal-dark);font-weight:700;text-transform:uppercase;margin-bottom:4px;}
.product-card h3{font-size:14px;margin:0 0 8px;min-height:38px;}
.product-card .price{font-weight:800;color:var(--orange);font-size:17px;margin-top:auto;}
.empty-note{padding:40px;text-align:center;color:var(--ink-soft);background:var(--card);border-radius:var(--radius);border:1px dashed var(--border);}

/* ---------- Product detail ---------- */
.product-detail{display:grid;grid-template-columns:minmax(336px,504px) 1fr;gap:40px;padding:30px 0 50px;align-items:start;}
@media(max-width:820px){.product-detail{grid-template-columns:1fr;}}

.gallery-main{
  position:relative;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  background:#fff;aspect-ratio:1/1;cursor:zoom-in;
}
.gallery-main img{width:100%;height:100%;object-fit:contain;transition:transform .12s ease-out;}
.gallery-main .zoom-hint{
  position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,.55);color:#fff;font-size:11px;
  padding:5px 10px;border-radius:20px;display:flex;align-items:center;gap:5px;pointer-events:none;
}
.thumb-row{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap;}
.thumb-row .t{
  width:77px;height:77px;border-radius:8px;overflow:hidden;border:2px solid var(--border);cursor:pointer;background:#fff;
}
.thumb-row .t.active{border-color:var(--teal-1);}
.thumb-row .t img{width:100%;height:100%;object-fit:cover;}

.buy-box h1{font-size:24px;margin:0 0 8px;}
.buy-box .sku{font-size:12px;color:var(--ink-soft);margin-bottom:14px;}
.buy-box .price{font-size:30px;font-weight:800;color:var(--orange);margin:10px 0 18px;}
.price .price-old{color:#94a3b8;text-decoration:line-through;text-decoration-color:#94a3b8;font-weight:600;font-size:.6em;margin-right:10px;display:inline-block;vertical-align:middle;}
.price .price-sale{color:var(--orange);font-weight:800;}
.price .price-inquire{font-size:16px;}
.vat-note{font-size:11.5px;color:var(--ink-soft);font-weight:500;margin-top:-2px;}
.buy-box .vat-note{font-size:12.5px;margin:-10px 0 16px;}
.spec-list{list-style:none;margin:0 0 22px;padding:0;border-top:1px solid var(--border);}
.spec-list li{padding:8px 0;border-bottom:1px solid var(--border);font-size:13.5px;display:flex;gap:8px;}
.spec-list li b{color:var(--ink-soft);min-width:190px;font-weight:600;flex:none;}
.qty-row{display:flex;align-items:center;gap:14px;margin-top:10px;}

.tabs{margin-top:50px;}
.tab-heads{display:flex;gap:6px;border-bottom:2px solid var(--border);}
.tab-heads button{
  background:none;border:none;padding:12px 20px;font-weight:700;font-size:14px;color:var(--ink-soft);
  border-bottom:3px solid transparent;margin-bottom:-2px;
}
.tab-heads button.active{color:var(--teal-dark);border-bottom-color:var(--teal-1);}
.tab-panel{display:none;padding:26px 0;font-size:14.5px;color:var(--ink-soft);}
.tab-panel.active{display:block;}
.tab-panel table{width:100%;border-collapse:collapse;font-size:13px;}
.tab-panel table th,.tab-panel table td{border:1px solid var(--border);padding:8px 10px;text-align:left;}
.tab-panel table th{background:var(--bg);}
.desc-block{overflow-x:auto;}
.desc-features{list-style:none;padding:0;margin:14px 0;}
.desc-features li{padding:6px 0;padding-left:26px;position:relative;}
.desc-features li:before{content:"✓";position:absolute;left:0;color:var(--teal-dark);font-weight:800;}

/* ---------- Lightbox ---------- */
.lightbox-overlay{
  position:fixed;inset:0;background:rgba(10,20,18,.92);z-index:1000;
  display:none;align-items:center;justify-content:center;flex-direction:column;
}
.lightbox-overlay.open{display:flex;}
.lightbox-stage{position:relative;max-width:90vw;max-height:76vh;overflow:hidden;}
.lightbox-stage img{max-width:90vw;max-height:76vh;object-fit:contain;transition:transform .15s;cursor:zoom-in;}
.lightbox-stage img.zoomed{cursor:zoom-out;}
.lightbox-controls{display:flex;align-items:center;gap:16px;margin-top:18px;}
.lightbox-controls button{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);color:#fff;
  width:40px;height:40px;border-radius:50%;font-size:16px;display:flex;align-items:center;justify-content:center;
}
.lightbox-controls button:hover{background:rgba(255,255,255,.25);}
.lightbox-close{position:absolute;top:20px;right:28px;font-size:28px;color:#fff;background:none;border:none;}
.lightbox-count{color:#fff;font-size:13px;opacity:.8;}

/* ---------- Admin ---------- */
.admin-wrap{display:grid;grid-template-columns:1fr;gap:30px;padding:30px 0 60px;}
.admin-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:10px;}
.admin-table{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.admin-table th,.admin-table td{padding:10px 14px;border-bottom:1px solid var(--border);font-size:13.5px;text-align:left;vertical-align:middle;}
.admin-table th{background:var(--bg);}
.admin-table img{width:44px;height:44px;object-fit:cover;border-radius:6px;}
.admin-table .actions{display:flex;gap:8px;}

.modal-overlay{position:fixed;inset:0;background:rgba(10,20,18,.55);display:none;align-items:flex-start;justify-content:center;z-index:900;padding:40px 16px;overflow:auto;}
.modal-overlay.open{display:flex;}
.modal-box{background:#fff;border-radius:var(--radius);max-width:720px;width:100%;padding:28px 30px 34px;box-shadow:var(--shadow);}
.modal-box h2{margin-top:0;}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:13px;font-weight:700;margin-bottom:6px;color:var(--ink-soft);}
.form-row input[type=text],.form-row input[type=number],.form-row input[type=password],.form-row select,.form-row textarea{
  width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-family:inherit;font-size:14px;
}
.form-row textarea{min-height:90px;resize:vertical;}
.pw-field-wrap{position:relative;}
.pw-field-wrap input[type=password],.pw-field-wrap input[type=text]{padding-right:42px !important;}
.pw-toggle{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;
  padding:6px;display:flex;align-items:center;justify-content:center;color:var(--ink-soft);border-radius:6px;
}
.pw-toggle:hover{color:var(--ink);background:rgba(0,0,0,.05);}
.cat-filter{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 16px;}
.cat-filter .cat-chip{
  border:1.5px solid var(--border);background:#fff;color:var(--ink);border-radius:20px;
  padding:7px 14px;font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;transition:.15s;
}
.cat-filter .cat-chip:hover{border-color:var(--teal-1);}
.cat-filter .cat-chip.active{background:var(--teal-1);border-color:var(--teal-1);color:#fff;}
.form-grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media(max-width:560px){.form-grid2{grid-template-columns:1fr;}}
.img-upload-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px;}
.img-slot{
  width:78px;height:78px;border-radius:8px;border:2px dashed var(--border);position:relative;
  display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--bg);font-size:11px;color:var(--ink-soft);text-align:center;
}
.img-slot img{width:100%;height:100%;object-fit:cover;}
.img-slot .rm{position:absolute;top:2px;right:2px;background:rgba(0,0,0,.6);color:#fff;border:none;border-radius:50%;width:18px;height:18px;font-size:11px;line-height:1;}
.img-slot.a4{width:78px;height:110px;} /* approximates A4 portrait ratio (210:297) */
.img-slot.a4 img{object-fit:contain;background:#fff;}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:22px;}
.hint{font-size:12px;color:var(--ink-soft);margin-top:6px;}
.badge-count{background:var(--teal-dark);color:#fff;font-size:11px;padding:2px 8px;border-radius:20px;margin-left:8px;}

/* ---------- Admin table drag-to-reorder ---------- */
.admin-table td.drag-handle{width:26px;text-align:center;cursor:grab;color:var(--ink-soft);font-size:16px;user-select:none;}
.admin-table tr[draggable="true"]:active td.drag-handle{cursor:grabbing;}
.admin-table tr.dragging{opacity:.35;}
.admin-table tr.drag-over{box-shadow:inset 0 2px 0 var(--teal-dark),inset 0 -2px 0 var(--teal-dark);}

/* ---------- Cloud sync status badge ---------- */
.sync-badge{display:inline-block;font-size:12.5px;padding:5px 10px;border-radius:8px;line-height:1.5;}
.sync-badge.sync-off{background:#fff3e0;color:#9a6a1e;border:1px solid #f3d9a8;}
.sync-badge.sync-wait{background:#eef3fb;color:#3a5a8a;border:1px solid #cfe0f5;}
.sync-badge.sync-on{background:#e8f8f2;color:var(--teal-dark);border:1px solid #bfe9dc;}
.sync-badge.sync-error{background:#fdecea;color:var(--danger);border:1px solid #f6c6c1;}

/* ---------- A4 spec-sheet display (product page) ---------- */
.specsheet-list{display:flex;flex-wrap:wrap;gap:22px;align-items:flex-start;}
.specsheet-list .sheet{
  width:280px;max-width:100%;border:1px solid var(--border);border-radius:10px;overflow:hidden;
  box-shadow:var(--shadow);cursor:zoom-in;background:#fff;
}
.specsheet-list .sheet img{width:100%;aspect-ratio:210/297;object-fit:contain;background:#fff;display:block;}
.specsheet-list .sheet .lbl{padding:8px 10px;font-size:12px;color:var(--ink-soft);border-top:1px solid var(--border);text-align:center;}

/* ---------- Footer ---------- */
footer{background:#0f2624;color:#cfe9e3;margin-top:40px;}
.footer-inner{max-width:1200px;margin:0 auto;padding:44px 20px 24px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;}
footer h4{color:#fff;font-size:15px;margin:0 0 14px;}
footer a{display:block;padding:4px 0;font-size:13px;color:#a9cec6;}
footer a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);text-align:center;padding:16px;font-size:12px;color:#89b3ab;}

/* ---------- Stub page ---------- */
.stub{padding:80px 20px;text-align:center;}
.stub .ic{font-size:50px;margin-bottom:16px;}
.stub h1{margin:0 0 10px;}
.stub p{color:var(--ink-soft);}

.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;
  padding:12px 22px;border-radius:30px;font-size:13.5px;box-shadow:var(--shadow);z-index:1200;
  opacity:0;pointer-events:none;transition:opacity .2s, bottom .2s;
}
.toast.show{opacity:1;bottom:36px;}

/* ---------- ตัวช่วยตั้งค่าฐานข้อมูลกลาง ---------- */
.cloud-state{border-radius:10px;padding:12px 14px;font-size:13.5px;line-height:1.7;}
.cloud-state code{background:rgba(0,0,0,.06);padding:1px 6px;border-radius:5px;font-size:12.5px;}
.cloud-state-off{background:#fff3e0;color:#8a5d16;border:1px solid #f3d9a8;}
.cloud-state-on{background:#e8f8f2;color:#0a6d5c;border:1px solid #bfe9dc;}
.cloud-steps{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:14px 16px;}
.cloud-steps a{color:var(--teal-dark);text-decoration:underline;}
.cloud-steps b{color:var(--ink);}
#cloud-modal textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;resize:vertical;}
.sync-badge a{color:inherit;text-decoration:underline;}

/* ---------- หน้าเนื้อหาที่สร้างเอง (การคำนวณ/บทความ/ผลงาน/อบรม/รับประกัน)
     ดู js/pages.js ---------- */
.page-sec-ic{font-size:44px;line-height:1;margin-bottom:10px;}

.page-admin-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  background:var(--card);border:1px dashed var(--border);border-radius:var(--radius);
  padding:12px 16px;margin-bottom:22px;
}
.page-admin-note{font-size:12.5px;color:var(--ink-soft);margin-right:auto;}

.page-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px;}
.page-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .15s;
}
.page-card:hover{transform:translateY(-4px);}
.page-card-link{display:flex;flex-direction:column;flex:1;}
.page-card-thumb{aspect-ratio:16/10;background:var(--bg);overflow:hidden;display:flex;align-items:center;justify-content:center;}
.page-card-thumb img{width:100%;height:100%;object-fit:cover;}
.page-card-noimg{font-size:46px;opacity:.35;}
.page-card-body{padding:14px 16px 18px;flex:1;display:flex;flex-direction:column;}
.page-card-body h3{font-size:15px;margin:0 0 8px;line-height:1.45;}
.page-card-body p{font-size:13px;color:var(--ink-soft);margin:0 0 12px;flex:1;}
.page-card-date{font-size:11.5px;color:var(--ink-soft);}
.page-card-tools{display:flex;flex-wrap:wrap;gap:6px;padding:10px 12px;border-top:1px solid var(--border);background:var(--bg);}
.page-card-tools .btn{padding:5px 10px;font-size:11.5px;}
.page-card-tools .btn[disabled]{opacity:.4;cursor:not-allowed;}
.page-draft-tag{
  display:inline-block;background:#fff4e5;color:#b45309;border:1px solid #fcd9a8;
  font-size:11px;font-weight:700;padding:2px 9px;border-radius:20px;margin-bottom:8px;
}

.page-detail{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:30px 34px 38px;max-width:860px;margin:0 auto 10px;
}
.page-detail h1{font-size:26px;margin:0 0 8px;line-height:1.4;}
.page-detail-meta{font-size:12.5px;color:var(--ink-soft);margin-bottom:20px;}
.page-detail-cover{width:100%;max-height:460px;object-fit:cover;border-radius:var(--radius);margin-bottom:22px;}
.page-detail-summary{font-size:15px;color:var(--ink-soft);font-weight:500;border-left:4px solid var(--teal-1);padding-left:14px;margin:0 0 20px;}
.page-detail-body{font-size:15px;line-height:1.85;}
.page-detail-body p{margin:0 0 16px;}
.page-detail-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;margin-top:26px;}
.page-detail-gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:10px;border:1px solid var(--border);cursor:zoom-in;}
@media(max-width:640px){
  .page-detail{padding:22px 18px 28px;}
  .page-detail h1{font-size:21px;}
}

/* ---------- แถบเมนู: "ลงทะเบียนผลิตภัณฑ์" ย้ายลงมาเป็นเมนูปกติในบรรทัดเดียวกัน
     (ตัวหนังสือ/ขนาด/เส้นใต้ตอน hover เหมือนเมนูอื่นทุกอย่าง) ---------- */
@media(max-width:1180px){
  .nav-links > li > a{padding:16px 10px;font-size:14px;}
}
@media(max-width:900px){
  .nav-inner{justify-content:center;}
  .nav-links{justify-content:center;}
  .nav-admin{margin-bottom:10px;}
}

/* ---------- แถบ "กำลังดูแบบผู้เข้าชม" (ลอยล่างจอ) — ดู js/auth.js ---------- */
body.has-preview-bar{padding-bottom:86px;}
.preview-bar{
  position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:1200;
  background:var(--ink);color:#fff;border-radius:30px;
  padding:10px 12px 10px 20px;box-shadow:0 8px 26px rgba(0,0,0,.28);
  display:flex;align-items:center;gap:14px;font-size:13.5px;max-width:calc(100% - 24px);
}
.preview-bar button{
  background:var(--teal-1);color:#fff;border:none;border-radius:22px;
  padding:7px 16px;font-size:13px;font-weight:700;font-family:inherit;white-space:nowrap;
}
.preview-bar button:hover{background:var(--teal-dark);}
@media(max-width:560px){
  .preview-bar{flex-direction:column;gap:8px;border-radius:16px;padding:12px 16px;text-align:center;font-size:12.5px;}
}

/* ---------- ช่องติดต่อมุมขวาบน: เบอร์โทร + LINE@ (แก้ข้อความ/เปลี่ยนรูปได้) ---------- */
.contact-block{flex-direction:column;align-items:flex-end;gap:10px;}
.contact-row{display:flex;align-items:center;gap:8px;}
.contact-link{display:flex;align-items:center;gap:10px;color:#fff;}
.contact-link:hover .contact-val{text-decoration:underline;}
.contact-val{font-size:20px;font-weight:600;white-space:nowrap;text-shadow:0 1px 5px rgba(0,0,0,.4);}
.contact-icon-img{width:100%;height:100%;object-fit:cover;border-radius:50%;}
.contact-block .icon{overflow:hidden;padding:0;}
.contact-block .icon svg{width:26px;height:26px;}
/* ช่องข้อความที่แก้ไขได้ (เห็นเฉพาะโหมดผู้ดูแล) */
.tb-editable-inline{outline:2px dashed rgba(255,255,255,.55);outline-offset:4px;border-radius:6px;cursor:text;}
.tb-editable-inline:focus{outline-style:solid;background:rgba(255,255,255,.12);}
.contact-controls{flex:none;}
@media(max-width:640px){
  .contact-block{align-items:center;gap:8px;}
  .contact-val{font-size:15px;}
  .contact-block .icon{width:32px;height:32px;}
  .contact-block .icon svg{width:20px;height:20px;}
}

/* ---------- รูป & ลิงก์บนหน้าเมนู (ดู js/pages.js) ---------- */
.sec-img-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-bottom:26px;
  align-items:start;} /* ไม่ยืดการ์ดให้สูงเท่ากัน ไม่งั้นรูปที่ไม่มีคำบรรยายจะมีช่องว่างขาวห้อยอยู่ */
.sec-img{
  position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);cursor:zoom-in;transition:transform .15s;
}
.sec-img.has-link{cursor:pointer;}
.sec-img:hover{transform:translateY(-3px);}
.sec-img img{width:100%;display:block;}
.sec-img-cap{padding:10px 14px;font-size:13.5px;color:var(--ink-soft);}
.sec-img-linkmark{
  position:absolute;top:10px;right:10px;background:rgba(4,102,86,.9);color:#fff;
  width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;
}
/* ลิงก์ในเนื้อหาบทความ */
.body-link{color:var(--teal-dark);font-weight:600;text-decoration:underline;word-break:break-word;}
.body-link:hover{color:var(--orange);}

/* แถวแก้ไขรูปในกล่อง "รูป & ลิงก์" */
.sec-img-edit{
  display:flex;gap:12px;align-items:flex-start;padding:12px;margin-bottom:10px;
  border:1px solid var(--border);border-radius:10px;background:var(--bg);
}
.sec-img-edit > img{width:96px;height:70px;object-fit:cover;border-radius:8px;flex:none;}
.sec-img-edit-fields{flex:1;display:flex;flex-direction:column;gap:8px;min-width:0;}
.sec-img-inp{
  width:100%;padding:8px 11px;border:1px solid var(--border);border-radius:8px;
  font-family:inherit;font-size:13px;background:#fff;
}
.sec-img-edit-btns{display:flex;flex-direction:column;gap:5px;flex:none;}
.sec-img-edit-btns .btn{padding:4px 9px;font-size:12px;}
.sec-img-edit-btns .btn[disabled]{opacity:.4;cursor:not-allowed;}
@media(max-width:560px){
  .sec-img-edit{flex-wrap:wrap;}
  .sec-img-edit-btns{flex-direction:row;width:100%;}
}

/* ---------- ลากสลับตำแหน่งรูป + ปรับขนาดรูป (ดู js/pages.js) ---------- */
.drag-grip{
  flex:none;align-self:center;cursor:grab;color:var(--ink-soft);font-size:18px;
  user-select:none;padding:0 2px;
}
.drag-grip:active{cursor:grabbing;}
.sec-img-edit[draggable="true"]{cursor:grab;}
.sec-img-edit.drag-src,.img-slot.drag-src{opacity:.35;}
.sec-img-edit.drag-over{outline:2px dashed var(--teal-1);outline-offset:2px;}
.img-slot.sortable{cursor:grab;}
.img-slot.sortable:active{cursor:grabbing;}
.img-slot.drag-over{outline:2px solid var(--teal-1);outline-offset:2px;}

.size-row{
  display:flex;align-items:center;gap:12px;margin-top:14px;
  padding:10px 12px;background:var(--bg);border:1px solid var(--border);border-radius:10px;
}
.size-row label{margin:0 !important;font-size:13px;font-weight:700;color:var(--ink-soft);white-space:nowrap;}
.size-row input[type=range]{flex:1;accent-color:var(--teal-1);}
.size-row span{font-size:12.5px;color:var(--ink-soft);min-width:56px;text-align:right;}

/* ปุ่ม Log In บนแถบเมนู (ฝั่งผู้เข้าชม) — โทนอ่อนกว่าปุ่มจัดการสินค้า
   เพื่อไม่ให้เด่นแย่งความสนใจไปจากเมนูหลัก */
.nav-admin.nav-login{background:transparent;color:var(--ink-soft) !important;border:1.5px solid var(--border);}
.nav-admin.nav-login:hover{background:var(--bg);color:var(--teal-dark) !important;border-color:var(--teal-1);}