/* VNPT-SDWAN-COMMERCE-V1 — VNPT SD-WAN region block styles.
 * SDWAN-UI-POLISH-V1 (2026-09-13): professional ServicePageV2 polish — typography hierarchy,
 * section rhythm, comparison table→mobile cards, F1/F2 device cards, Fortinet/IPSec trust cards,
 * chip system (fixes glued badge text), survey presentation. Mobile-first; NO page horizontal
 * scroll. Self-contained tokens with fallbacks; VNPT-blue accent. Contains NO price styling
 * (PROJECT / SURVEY_REQUIRED). Business/Product/Commercial truth unchanged. */
.sw{--sw-tea:#1d4ed8;--sw-tea-d:#1e40af;--sw-ink:#1e3a8a;--sw-muted:#475569;--sw-line:#dbeafe;--sw-bg:#eff6ff;--sw-card:#fff;--sw-ok:#137a3f;--sw-radius:14px;color:var(--sw-ink);padding-bottom:88px;font-size:16px}
.dh *{box-sizing:border-box}
.sw-region{max-width:1120px;margin:0 auto;padding:28px 18px}
.sw-r-head{display:flex;align-items:flex-start;gap:12px;margin:0 0 8px}
.sw-r-num{flex:0 0 auto;width:30px;height:30px;border-radius:50%;background:var(--sw-tea);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:15px;margin-top:2px}
.sw-r-head h2{font-size:clamp(21px,5vw,27px);line-height:1.28;margin:0;font-weight:800;letter-spacing:-.01em}
.sw-r-sub{color:var(--sw-muted);font-size:15.5px;line-height:1.62;margin:4px 0 16px;max-width:840px}
.sw-r-sub b{color:var(--sw-ink)}
.sw-note-muted{color:var(--sw-muted);font-size:13.5px;line-height:1.55;margin:12px 0 0}
.sw-def{font-size:16.5px;line-height:1.62;color:var(--sw-ink);background:linear-gradient(180deg,#fff,var(--sw-bg));border:1.5px solid var(--sw-tea);border-radius:14px;padding:16px 18px;margin:6px 0 18px;max-width:900px}

/* eyebrow chip */
.sw-eyebrow{display:inline-block;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--sw-tea);background:var(--sw-bg);border:1px solid var(--sw-line);border-radius:999px;padding:5px 12px;margin:0 0 10px}

/* callout (comparison / explanatory) */
.sw-callout{margin:14px 0 0;background:linear-gradient(180deg,#fff,var(--sw-bg));border:1.5px solid var(--sw-tea);border-left-width:4px;border-radius:12px;padding:14px 16px;font-size:14.5px;line-height:1.6;color:var(--sw-ink)}
.sw-callout b{color:var(--sw-tea-d)}

/* chips (Fortinet / IPSec) */
.sw-badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.sw-badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--sw-tea-d);background:var(--sw-bg);border:1px solid var(--sw-line);border-radius:999px;padding:7px 12px;line-height:1}
.sw-badge-alt{background:var(--sw-tea);color:#fff;border-color:var(--sw-tea)}

/* trust / security cards */
.sw-trust-card,.sw-sec-card{background:linear-gradient(180deg,#fff,var(--sw-bg));border:1.5px solid var(--sw-line);border-radius:16px;padding:18px}
.sw-trust-card .sw-r-sub,.sw-sec-card .sw-r-sub{margin-bottom:0}

/* buttons */
.sw-cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.sw-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 18px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer;text-decoration:none;border:1.5px solid transparent;transition:.15s;min-height:48px}
.sw-btn[hidden]{display:none}
.sw-btn-sm{min-height:44px;padding:10px 16px;font-size:14px}
.sw-btn-primary{background:var(--sw-tea);color:#fff}
.sw-btn-primary:hover{background:var(--sw-tea-d)}
.sw-btn-ghost{background:#fff;color:var(--sw-tea-d);border-color:var(--sw-tea)}
.sw-btn-ghost:hover{background:var(--sw-bg)}

/* 01 pain grid */
.sw-pain-grid{display:grid;grid-template-columns:1fr;gap:12px}
.sw-pain-card{background:var(--sw-card);border:1.5px solid var(--sw-line);border-radius:var(--sw-radius);padding:16px}
.sw-pain-ic{font-size:24px;line-height:1;margin-bottom:6px}
.sw-pain-t{font-weight:700;font-size:15px;color:var(--sw-ink);margin-bottom:4px}
.sw-pain-d{font-size:14px;line-height:1.55;color:var(--sw-muted)}

/* 02 fact block */
.sw-fact{margin:0;border:1.5px solid var(--sw-line);border-radius:14px;overflow:hidden;background:var(--sw-card)}
.sw-fact-row{display:flex;gap:12px;padding:12px 16px;border-bottom:1px solid var(--sw-line);font-size:14px}
.sw-fact-row:last-child{border-bottom:none}
.sw-fact-row dt{flex:0 0 42%;margin:0;font-weight:700;color:var(--sw-tea-d)}
.sw-fact-row dd{flex:1;margin:0;color:var(--sw-ink);line-height:1.5}

/* figures / diagrams */
.sw-fig{margin:14px 0 0;background:var(--sw-card);border:1.5px solid var(--sw-line);border-radius:16px;padding:16px}
.sw-fig-title{font-size:15px;font-weight:800;color:var(--sw-tea-d);text-align:center;margin-bottom:8px}
.sw-diagram{width:100%;height:auto;display:block;max-width:420px;margin:0 auto}
.sw-figcap{font-size:13.5px;line-height:1.55;color:var(--sw-muted);margin-top:10px;text-align:center}

/* 03 flow steps */
.sw-flow{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:10px}
.sw-flow-step{display:flex;gap:12px;align-items:flex-start;background:var(--sw-card);border:1.5px solid var(--sw-line);border-radius:12px;padding:14px}
.sw-flow-ic{font-size:22px;line-height:1;flex:0 0 auto}
.sw-flow-step b{display:block;font-size:15px;color:var(--sw-ink)}
.sw-flow-step span{display:block;font-size:14px;line-height:1.55;color:var(--sw-muted);margin-top:2px}

/* 05 feature groups */
.sw-feat-grid{display:grid;grid-template-columns:1fr;gap:14px}
.sw-feat-card{background:var(--sw-card);border:1.5px solid var(--sw-line);border-radius:14px;padding:16px}
.sw-feat-ic{font-size:24px;line-height:1;display:block;margin-bottom:6px}
.sw-feat-t{font-weight:800;font-size:15.5px;color:var(--sw-tea-d);margin-bottom:4px}
.sw-feat-d{font-size:14px;line-height:1.55;color:var(--sw-muted)}

/* 07 use cases */
.sw-uc-grid{display:grid;grid-template-columns:1fr;gap:12px}
.sw-uc-card{background:var(--sw-card);border:1.5px solid var(--sw-line);border-radius:14px;padding:16px}
.sw-uc-ic{font-size:22px;line-height:1;display:block;margin-bottom:6px}
.sw-uc-t{font-weight:700;font-size:15px;color:var(--sw-ink);margin-bottom:4px}
.sw-uc-d{font-size:14px;line-height:1.55;color:var(--sw-muted)}

/* 06/08/09/10 characteristic grid (legacy, retained) */
.sw-char-grid{margin-top:6px;display:grid;grid-template-columns:1fr;gap:10px}
.sw-char{display:flex;gap:10px;align-items:flex-start;background:var(--sw-bg);border:1px solid var(--sw-line);border-radius:10px;padding:12px 14px}
.sw-char-ic{font-size:20px;line-height:1;flex:0 0 auto}
.sw-char b{display:block;font-size:13.5px;color:var(--sw-tea-d);margin-bottom:2px}
.sw-char span{font-size:13px;line-height:1.5;color:var(--sw-muted)}

/* 07 comparison — mobile-first stacked cards; ≥720px real table */
.sw-cmp-wrap{margin-top:6px}
.sw-cmp{width:100%;border-collapse:collapse}
.sw-cmp thead{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.sw-cmp tr{display:block;background:var(--sw-card);border:1.5px solid var(--sw-line);border-radius:14px;padding:14px 16px;margin-bottom:12px}
.sw-cmp tr.sw-cmp-self{border-color:var(--sw-tea);background:linear-gradient(180deg,#fff,var(--sw-bg));box-shadow:0 4px 14px rgba(29,78,216,.1)}
.sw-cmp td{display:block;padding:0;border:none}
.sw-cmp td[data-th="Dịch vụ"]{font-weight:800;font-size:16px;color:var(--sw-ink);margin-bottom:8px}
.sw-cmp td[data-th="Dịch vụ"] a{color:var(--sw-tea-d);text-decoration:none}
.sw-cmp td[data-th="Dịch vụ"] a:hover{text-decoration:underline}
.sw-cmp td[data-th="Lớp"]{display:inline-block;font-size:12px;font-weight:700;color:var(--sw-tea-d);background:var(--sw-bg);border:1px solid var(--sw-line);border-radius:999px;padding:4px 11px;margin-bottom:9px;line-height:1.3}
.sw-cmp tr.sw-cmp-self td[data-th="Lớp"]{background:var(--sw-tea);color:#fff;border-color:var(--sw-tea)}
.sw-cmp td[data-th="Vai trò"]{font-size:14px;line-height:1.55;color:var(--sw-muted)}

/* 08 device profiles F1/F2 (NO price) */
.sw-dev-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:6px}
.sw-dev-card{display:flex;flex-direction:column;background:var(--sw-card);border:1.5px solid var(--sw-line);border-radius:16px;padding:18px;transition:.15s}
.sw-dev-card:hover{border-color:var(--sw-tea);box-shadow:0 4px 16px rgba(29,78,216,.08)}
.sw-dev-top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.sw-dev-badge{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:26px;padding:0 11px;border-radius:999px;background:var(--sw-tea);color:#fff;font-weight:800;font-size:13.5px;letter-spacing:.02em}
.sw-dev-label{font-weight:800;font-size:17px;color:var(--sw-ink);line-height:1.25}
.sw-dev-model{display:inline-flex;align-items:center;gap:7px;align-self:flex-start;font-weight:700;font-size:14px;color:var(--sw-tea-d);background:var(--sw-bg);border:1px solid var(--sw-line);border-radius:9px;padding:7px 11px;margin-bottom:10px}
.sw-dev-model:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--sw-tea);flex:0 0 auto}
.sw-dev-desc{font-size:14px;line-height:1.55;color:var(--sw-muted)}
.sw-dev-price{margin-top:14px;padding-top:12px;border-top:1px dashed var(--sw-line);font-size:13.5px;font-weight:700;color:var(--sw-ink)}
.sw-dev-cta{margin-top:12px}
.sw-dev-cta .sw-btn{width:100%}

/* 11 survey */
.sw-r-survey .sw-survey{background:linear-gradient(180deg,#fff,var(--sw-bg));border:1.5px solid var(--sw-tea);border-radius:16px;padding:20px 18px;box-shadow:0 4px 18px rgba(29,78,216,.1)}
.sw-survey-progress{height:6px;background:var(--sw-line);border-radius:999px;overflow:hidden;margin-bottom:18px}
.sw-survey-bar{height:100%;width:0;background:var(--sw-tea);transition:width .25s}
.sw-survey-q{font-size:16.5px;font-weight:700;color:var(--sw-ink);margin-bottom:14px;line-height:1.4}
.sw-survey-hint{font-size:12.5px;font-weight:500;color:var(--sw-muted)}
.sw-survey-opts{display:grid;gap:10px}
.sw-survey-opt{display:flex;align-items:center;gap:12px;padding:13px 15px;border:1.5px solid var(--sw-line);border-radius:11px;background:#fff;cursor:pointer;font-size:15px;min-height:52px;transition:.12s}
.sw-survey-opt:hover{border-color:var(--sw-tea);background:var(--sw-bg)}
.sw-survey-opt:focus-within{border-color:var(--sw-tea);box-shadow:0 0 0 3px rgba(29,78,216,.18)}
.sw-survey-opt input{width:20px;height:20px;flex:0 0 auto;accent-color:var(--sw-tea)}
.sw-survey-nav{display:flex;justify-content:space-between;gap:10px;margin-top:18px}
.sw-survey-msg{font-size:13px;margin-top:10px;min-height:16px}
.sw-survey-msg.sw-err{color:#b4231f}

/* 12 blog cards */
.sw-blog-grid{display:grid;grid-template-columns:1fr;gap:12px}
.sw-blog-card{display:flex;flex-direction:column;background:var(--sw-card);border:1.5px solid var(--sw-line);border-radius:14px;padding:16px;text-decoration:none;transition:.15s}
.sw-blog-card:hover{border-color:var(--sw-tea);box-shadow:0 4px 16px rgba(29,78,216,.1)}
.sw-blog-purpose{font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--sw-tea);margin-bottom:6px}
.sw-blog-title{font-weight:800;font-size:15.5px;color:var(--sw-ink);line-height:1.38}
.sw-blog-sum{font-size:13.5px;color:var(--sw-muted);margin-top:6px;line-height:1.55}
.sw-blog-more{font-size:13.5px;font-weight:700;color:var(--sw-tea-d);margin-top:10px}

/* 13 qa */
.sw-qa{display:grid;gap:8px}
.sw-qa-item{background:var(--sw-card);border:1.5px solid var(--sw-line);border-radius:12px;padding:0 16px}
.sw-qa-item summary{cursor:pointer;padding:14px 0;font-weight:700;font-size:15px;list-style:none;display:flex;align-items:flex-start}
.sw-qa-item summary::-webkit-details-marker{display:none}
.sw-qa-item summary:before{content:"+";color:var(--sw-tea);font-weight:800;margin-right:10px;flex:0 0 auto}
.sw-qa-item[open] summary:before{content:"–"}
.sw-qa-a{padding:0 0 14px;font-size:14px;line-height:1.62;color:var(--sw-muted)}

/* 14 related */
.sw-rel-grid{display:grid;grid-template-columns:1fr;gap:12px}
.sw-rel-card{display:block;background:var(--sw-card);border:1.5px solid var(--sw-line);border-radius:14px;padding:16px;text-decoration:none;transition:.15s}
.sw-rel-card:hover{border-color:var(--sw-tea);box-shadow:0 4px 16px rgba(29,78,216,.1)}
.sw-rel-name{display:block;font-weight:700;font-size:15px;color:var(--sw-tea-d)}
.sw-rel-note{display:block;font-size:13.5px;color:var(--sw-muted);margin-top:3px;line-height:1.5}

/* 15 final cta */
.sw-r-cta{background:var(--sw-bg);border-radius:18px;margin-top:20px;margin-left:auto;margin-right:auto;max-width:1120px}

/* lead result */
.sw-lead-result{max-width:1120px;margin:0 auto;padding:0 18px}
.sw-lead-result.sw-ok{padding:16px;margin-top:10px;background:#e9f6ef;border:1.5px solid var(--sw-ok);border-radius:12px;color:#0d5c30;font-weight:600}
.sw-lead-result .sw-btn{margin-left:8px}

/* modal */
.sw-modal[hidden]{display:none}
.sw-modal{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;padding:16px}
.sw-modal-back{position:absolute;inset:0;background:rgba(30,58,138,.55)}
.sw-modal-box{position:relative;background:#fff;border-radius:16px;max-width:460px;width:100%;max-height:92vh;overflow:auto;padding:22px 20px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.sw-modal-x{position:absolute;top:10px;right:12px;background:none;border:none;font-size:26px;line-height:1;color:var(--sw-muted);cursor:pointer}
.sw-modal-box h3{margin:0 6px 4px 0;font-size:19px;font-weight:800;color:var(--sw-ink)}
.sw-modal-sub{margin:0 0 14px;font-size:13.5px;color:var(--sw-muted);line-height:1.5}
.sw-field{display:block;margin-bottom:12px}
.sw-field span{display:block;font-size:13px;font-weight:600;color:var(--sw-ink);margin-bottom:5px}
.sw-field input,.sw-field textarea{width:100%;padding:11px 12px;border:1.5px solid var(--sw-line);border-radius:10px;font-size:15px;font-family:inherit}
.sw-field input:focus,.sw-field textarea:focus{outline:none;border-color:var(--sw-tea);box-shadow:0 0 0 3px rgba(29,78,216,.15)}
.sw-modal-msg{font-size:13px;min-height:16px;margin-bottom:6px}
.sw-modal-msg.sw-err{color:#b4231f}
.sw-modal-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
body.sw-modal-open{overflow:hidden}

/* ≥720px */
@media(min-width:720px){
  .sw-region{padding:36px 24px}
  .sw-pain-grid{grid-template-columns:1fr 1fr 1fr 1fr}
  .sw-feat-grid{grid-template-columns:1fr 1fr}
  .sw-uc-grid{grid-template-columns:1fr 1fr 1fr}
  .sw-char-grid{grid-template-columns:1fr 1fr}
  .sw-blog-grid{grid-template-columns:1fr 1fr 1fr}
  .sw-rel-grid{grid-template-columns:1fr 1fr}
  .sw-dev-grid{grid-template-columns:1fr 1fr}
  .sw-dev-cta .sw-btn{width:auto}
  /* comparison → real table */
  .sw-cmp{border:1.5px solid var(--sw-line);border-radius:14px;overflow:hidden;font-size:14.5px}
  .sw-cmp thead{position:static;width:auto;height:auto;overflow:visible}
  .sw-cmp thead th{text-align:left;font-size:12.5px;text-transform:uppercase;letter-spacing:.03em;color:var(--sw-tea-d);padding:11px 15px;border-bottom:2px solid var(--sw-line);background:var(--sw-bg);font-weight:800}
  .sw-cmp tr{display:table-row;background:var(--sw-card);border:none;border-radius:0;padding:0;margin:0}
  .sw-cmp tr.sw-cmp-self{background:var(--sw-bg);box-shadow:none}
  .sw-cmp td{display:table-cell;padding:13px 15px;border-bottom:1px solid var(--sw-line);vertical-align:top;line-height:1.55}
  .sw-cmp tr:last-child td{border-bottom:none}
  .sw-cmp td[data-th="Dịch vụ"]{font-weight:700;color:var(--sw-ink);font-size:14.5px;margin-bottom:0;white-space:nowrap}
  .sw-cmp td[data-th="Lớp"]{display:table-cell;background:none;border:none;border-radius:0;padding:13px 15px;margin-bottom:0;color:var(--sw-tea-d);font-weight:600;font-size:13.5px}
  .sw-cmp tr.sw-cmp-self td[data-th="Lớp"]{background:none;color:var(--sw-tea-d)}
  .sw-cmp td[data-th="Vai trò"]{color:var(--sw-muted)}
}
@media(min-width:980px){
  .sw-feat-grid{grid-template-columns:1fr 1fr 1fr}
  .sw-char-grid{grid-template-columns:1fr 1fr 1fr 1fr}
  .sw-rel-grid{grid-template-columns:1fr 1fr 1fr 1fr}
}