/* ============================================================
   Minipriza Theme - Main CSS
   font-size หลัก: 18px ตามที่กำหนด
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --c-primary:   #E85D75;
  --c-primary-d: #C94060;
  --c-primary-lt:#FFF0F3;
  --c-bg:        #FAFAFA;
  --c-card:      #FFFFFF;
  --c-border:    #EBEBEB;
  --c-text:      #2B2B2B;
  --c-muted:     #6B7280;
  --radius:      12px;
  --shadow:      0 2px 16px rgba(0,0,0,.07);
  --font:        'Sarabun', sans-serif;
  --fs-body:     18px;
  --fs-sm:       16px;
  --fs-xs:       14px;
  --fs-h1:       28px;
  --fs-h2:       24px;
  --fs-h3:       20px;
  --lh:          1.85;
}

/* Base */
html { font-size: 18px; }
body { font-family: var(--font); font-size: var(--fs-body); color: var(--c-text); background: var(--c-bg); line-height: var(--lh); }

/* Layout */
.page-wrap { max-width: 820px; margin: 0 auto; padding: 24px 16px 64px; }

/* Header */
.site-header { background: #fff; border-bottom: 1px solid var(--c-border); padding: 0 16px; position: sticky; top: 0; z-index: 100; box-shadow: 0 1px 8px rgba(0,0,0,.06); }
.site-header-inner { max-width: 820px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 56px; }
.site-title { font-size: 20px; font-weight: 700; color: var(--c-primary); text-decoration: none; }
.nav-menu { display: flex; gap: 24px; list-style: none; }
.nav-menu a { font-size: var(--fs-sm); font-weight: 600; color: var(--c-text); text-decoration: none; }
.nav-menu a:hover { color: var(--c-primary); }

/* Footer */
.site-footer { background: #fff; border-top: 1px solid var(--c-border); padding: 24px 16px; margin-top: 48px; }
.site-footer-inner { max-width: 820px; margin: 0 auto; text-align: center; }
.footer-copy { font-size: var(--fs-xs); color: var(--c-muted); margin-bottom: 6px; }
.footer-copy a { color: var(--c-primary); text-decoration: none; }
.footer-affiliate { font-size: 12px; color: var(--c-muted); margin-bottom: 12px; }
.footer-menu { display: flex; gap: 16px; list-style: none; justify-content: center; flex-wrap: wrap; }
.footer-menu a { font-size: var(--fs-xs); color: var(--c-muted); text-decoration: none; }
.footer-menu a:hover { color: var(--c-primary); }

/* ============================================================
   TOOL COMPONENTS - ใช้ใน Custom HTML block
   ============================================================ */

/* Intro */
.intro { margin-bottom: 28px; }
.intro p { color: var(--c-muted); font-size: var(--fs-sm); }

/* Info Banner */
.info-banner {
  background: linear-gradient(135deg,#FFF0F3,#FFF6F8);
  border: 1.5px solid #F9C4CE;
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 24px;
  font-size: var(--fs-sm);
  display: flex; align-items: flex-start; gap: 10px;
}
.info-banner strong { color: var(--c-primary); }

/* Tool Card */
.tool-card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 24px;
  margin-bottom: 32px;
}
.tool-card h2 { font-size: var(--fs-h2); font-weight: 700; margin-bottom: 6px; }
.tool-card .subtitle { font-size: var(--fs-sm); color: var(--c-muted); margin-bottom: 22px; }

/* Inputs */
.input-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 16px; }
.input-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; margin-bottom: 16px; }
.input-full { grid-column: 1 / -1; }
.input-group label { display: block; font-size: var(--fs-xs); font-weight: 600; margin-bottom: 6px; }
.input-group input, .input-group select {
  width: 100%; padding: 13px 14px;
  border: 1.5px solid var(--c-border); border-radius: 8px;
  font-family: var(--font); font-size: var(--fs-body); color: var(--c-text);
  background: #fff; transition: border-color .2s; outline: none;
}
.input-group input:focus, .input-group select:focus { border-color: var(--c-primary); }
.input-hint { font-size: 12px; color: var(--c-muted); margin-top: 4px; }
.input-tag { display:inline-block; background:var(--c-primary); color:#fff; font-size:11px; font-weight:700; padding:1px 6px; border-radius:4px; margin-left:4px; vertical-align:middle; }
.input-tag.sec { background: #9CA3AF; }

/* Button */
.btn-calc {
  width: 100%; background: var(--c-primary); color: #fff;
  border: none; border-radius: 8px; padding: 14px 28px;
  font-family: var(--font); font-size: var(--fs-body); font-weight: 700;
  cursor: pointer; transition: background .2s, transform .1s; margin-top: 6px;
}
.btn-calc:hover { background: var(--c-primary-d); }
.btn-calc:active { transform: scale(.98); }

/* Result Box */
.result-box { display:none; background:linear-gradient(135deg,#FFF0F3,#FFF6F8); border:1.5px solid #F9C4CE; border-radius:10px; padding:20px 22px; margin-top:20px; }
.result-box.visible { display:block; animation: fadeIn .3s ease; }
@keyframes fadeIn { from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none} }
.result-title { font-size:var(--fs-xs); color:var(--c-muted); font-weight:700; text-transform:uppercase; letter-spacing:.06em; margin-bottom:14px; }

/* Hero Result */
.size-hero { background:var(--c-primary); border-radius:12px; padding:18px 20px; display:flex; align-items:center; justify-content:space-between; gap:16px; margin-bottom:14px; flex-wrap:wrap; }
.size-hero-left { color:rgba(255,255,255,.85); font-size:var(--fs-sm); font-weight:600; }
.size-hero-left span { display:block; font-size:13px; opacity:.75; margin-bottom:2px; }
.size-hero-num { font-size:52px; font-weight:700; color:#fff; line-height:1; }
.size-hero-note { font-size:13px; color:rgba(255,255,255,.8); margin-top:4px; }

/* Chips */
.size-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(110px,1fr)); gap:10px; margin-bottom:14px; }
.size-chip { background:#fff; border:1.5px solid #F9C4CE; border-radius:8px; padding:11px 8px; text-align:center; }
.size-chip .chip-label { font-size:12px; color:var(--c-muted); display:block; margin-bottom:2px; font-weight:600; }
.size-chip .chip-val { font-size:20px; font-weight:700; color:var(--c-primary); line-height:1.2; }
.size-chip .chip-val.small { font-size:15px; }

/* Fit / Info box */
.fit-box { background:rgba(255,255,255,.75); border-radius:8px; border-left:3px solid #10B981; padding:10px 14px; font-size:var(--fs-xs); color:var(--c-muted); margin-bottom:14px; line-height:1.65; }
.fit-warn { border-left-color: #F59E0B; background:#FFFBEB; }
.info-box-blue { background:#EFF6FF; border:1px solid #BFDBFE; border-radius:8px; padding:13px 16px; font-size:var(--fs-xs); color:#1E40AF; margin-bottom:14px; line-height:1.65; }

/* Disclaimer */
.disclaimer { display:flex; align-items:flex-start; gap:10px; background:#F9FAFB; border:1px solid #E5E7EB; border-radius:8px; padding:12px 14px; margin-top:14px; font-size:var(--fs-xs); color:var(--c-muted); line-height:1.65; }

/* Affiliate CTA */
.lazada-cta { display:flex; gap:10px; flex-wrap:wrap; align-items:center; padding-top:14px; }
.lazada-cta p { font-size:var(--fs-sm); font-weight:600; color:var(--c-text); }
.btn-lazada, .btn-shopee { display:inline-flex; align-items:center; gap:6px; color:#fff; text-decoration:none; padding:10px 18px; border-radius:7px; font-family:var(--font); font-size:var(--fs-sm); font-weight:700; transition:opacity .2s; }
.btn-lazada { background:#E05A10; }
.btn-shopee { background:#D63B20; }
.btn-lazada:hover, .btn-shopee:hover { opacity:.85; }
.affiliate-note { font-size:12px; color:var(--c-muted); margin-top:8px; }

/* Section Title */
.section-title { font-size:var(--fs-h2); font-weight:700; margin:40px 0 18px; padding-bottom:10px; border-bottom:2px solid var(--c-border); }

/* Steps */
.steps { display:flex; flex-direction:column; gap:14px; margin-bottom:32px; }
.step { display:flex; gap:14px; align-items:flex-start; background:var(--c-card); border:1px solid var(--c-border); border-radius:var(--radius); padding:18px 20px; box-shadow:0 1px 6px rgba(0,0,0,.04); }
.step-num { flex-shrink:0; width:34px; height:34px; background:var(--c-primary); color:#fff; border-radius:50%; font-weight:700; font-size:var(--fs-sm); display:flex; align-items:center; justify-content:center; }
.step-body strong { display:block; font-size:var(--fs-h3); margin-bottom:4px; }
.step-body span { font-size:var(--fs-sm); color:var(--c-muted); }
.step-tip { display:inline-block; background:#FFF0F3; border:1px solid #F9C4CE; border-radius:6px; padding:4px 10px; font-size:12px; color:var(--c-primary); font-weight:600; margin-top:6px; }

/* Table */
.table-wrap { overflow-x:auto; margin-bottom:32px; border-radius:var(--radius); box-shadow:var(--shadow); -webkit-overflow-scrolling:touch; }
table { width:100%; border-collapse:collapse; font-size:var(--fs-sm); min-width:480px; }
thead tr { background:#E85D75; }
thead th { padding:13px 16px; text-align:center; font-weight:700; font-size:var(--fs-sm); color:#fff; border:none; }
tbody tr:nth-child(even) { background:#FFF8F9; }
tbody tr:hover { background:#FFF0F3; transition:background .15s; }
td { padding:12px 16px; text-align:center; border-bottom:1px solid var(--c-border); font-size:var(--fs-sm); }
td:first-child { font-weight:700; color:var(--c-primary); }

/* FAQ */
.faq-list { display:flex; flex-direction:column; gap:12px; margin-bottom:32px; }
details { background:var(--c-card); border:1px solid var(--c-border); border-radius:var(--radius); overflow:hidden; }
summary { padding:17px 20px; font-weight:600; font-size:var(--fs-body); cursor:pointer; list-style:none; display:flex; justify-content:space-between; align-items:center; gap:8px; }
summary::after { content:"+"; font-size:24px; color:var(--c-primary); flex-shrink:0; }
details[open] summary::after { content:"-"; }
.faq-body { padding:0 20px 20px; font-size:var(--fs-sm); color:var(--c-muted); line-height:var(--lh); }

/* Related Tools */
.related-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(180px,1fr)); gap:12px; margin-bottom:32px; }
.related-card { background:var(--c-card); border:1px solid var(--c-border); border-radius:var(--radius); padding:18px; text-align:center; text-decoration:none; color:var(--c-text); transition:box-shadow .2s,border-color .2s; display:block; }
.related-card:hover { border-color:var(--c-primary); box-shadow:0 4px 16px rgba(232,93,117,.15); }
.related-card .rc-icon { font-size:30px; margin-bottom:8px; }
.related-card .rc-title { font-size:var(--fs-sm); font-weight:700; }
.related-card .rc-desc { font-size:var(--fs-xs); color:var(--c-muted); margin-top:3px; }

/* Conflict warning */
.conflict-warn { display:none; background:#FFFBEB; border:1.5px solid #FCD34D; border-radius:8px; padding:12px 14px; font-size:var(--fs-xs); color:#92400E; margin-bottom:14px; line-height:1.65; }
.conflict-warn.show { display:block; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 600px) {
  .page-wrap { padding: 16px 12px 56px; }
  .input-row { grid-template-columns: 1fr; }
  .input-row-3 { grid-template-columns: 1fr 1fr; }
  .size-hero-num { font-size: 42px; }
  .size-hero { padding: 14px 16px; }
  .size-grid { grid-template-columns: repeat(2,1fr); }
  .related-grid { grid-template-columns: repeat(2,1fr); }
  .tool-card { padding: 20px 16px; }
  .step { padding: 14px 16px; }
  .nav-menu { display: none; }
  .lazada-cta { flex-wrap: wrap; }
  .btn-lazada, .btn-shopee { flex: 1; justify-content: center; min-width: 120px; }
}
@media (max-width: 400px) {
  .input-row-3 { grid-template-columns: 1fr; }
}