/* ==========================================================================
   คำนวณแอร์ by โยธาไทย — style.css
   ระบบดีไซน์: โทนเย็น (ฟ้า/ฟ้าอมเขียว) ตัดกับโทนร้อน (ส้ม/แดง) สำหรับความร้อน
   รองรับโหมดสว่าง/มืดอัตโนมัติ และสั่งเองได้ · ปรับตัวได้ตั้งแต่มือถือถึงจอใหญ่
   ========================================================================== */

:root {
  --brand-50:#ecfeff; --brand-100:#cffafe; --brand-200:#a5f3fc; --brand-300:#67e8f9;
  --brand-400:#22d3ee; --brand-500:#06b6d4; --brand-600:#0891b2; --brand-700:#0e7490;
  --brand-800:#155e75; --brand-900:#164e63;
  --blue-500:#0ea5e9; --blue-600:#0284c7; --blue-700:#0369a1;

  --heat-300:#fdba74; --heat-400:#fb923c; --heat-500:#f97316; --heat-600:#ea580c;
  --hot-500:#ef4444; --hot-600:#dc2626;
  --good-500:#10b981; --good-600:#059669;
  --warn-500:#f59e0b;
  --violet-500:#8b5cf6;

  --bg:#f6f9fb;
  --bg-alt:#eef4f8;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --surface-3:#f1f5f9;
  --border:#e2e8f0;
  --border-strong:#cbd5e1;
  --text:#0f172a;
  --text-2:#475569;
  --text-3:#94a3b8;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.05);
  --shadow:0 4px 6px -1px rgba(15,23,42,.07), 0 2px 4px -2px rgba(15,23,42,.05);
  --shadow-lg:0 20px 25px -5px rgba(15,23,42,.10), 0 8px 10px -6px rgba(15,23,42,.06);
  --shadow-glow:0 10px 40px -12px rgba(6,182,212,.45);

  --radius:14px;
  --radius-sm:10px;
  --radius-lg:22px;
  --maxw:1180px;
  --font: 'IBM Plex Sans Thai', 'Sarabun', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* บอกเบราว์เซอร์ให้วาดส่วนที่เป็นของระบบ (แถบเลื่อน รายการใน dropdown ช่องกรอกที่เติมอัตโนมัติ)
     ให้เข้ากับธีมด้วย ไม่งั้นจะมีแถบขาวโพลนโผล่มาในโหมดมืด */
  color-scheme: light;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg:#0a1420;
  --bg-alt:#0f1c2b;
  --surface:#132436;
  --surface-2:#0f1e2e;
  --surface-3:#1b3247;
  --border:#223d55;
  --border-strong:#2f5573;
  --text:#e8f2f8;
  --text-2:#a3bdd1;
  --text-3:#6b8aa4;
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --shadow:0 4px 10px rgba(0,0,0,.45);
  --shadow-lg:0 24px 40px -12px rgba(0,0,0,.6);
  --shadow-glow:0 10px 40px -12px rgba(6,182,212,.35);
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) {
    color-scheme: dark;
    --bg:#0a1420; --bg-alt:#0f1c2b; --surface:#132436; --surface-2:#0f1e2e;
    --surface-3:#1b3247; --border:#223d55; --border-strong:#2f5573;
    --text:#e8f2f8; --text-2:#a3bdd1; --text-3:#6b8aa4;
    --shadow-sm:0 1px 2px rgba(0,0,0,.4);
    --shadow:0 4px 10px rgba(0,0,0,.45);
    --shadow-lg:0 24px 40px -12px rgba(0,0,0,.6);
  }
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);background:var(--bg);color:var(--text);
  font-size:16px;line-height:1.65;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
/* ไล่สีพื้นหลังวางเป็นชั้นแยกแบบ fixed แทนการใช้ background-attachment
   ซึ่งทำให้การเลื่อนหน้าจอกระตุกบนมือถือ */
body::before{
  content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    radial-gradient(900px 460px at 88% -8%, rgba(6,182,212,.13), transparent 60%),
    radial-gradient(700px 420px at 4% 2%, rgba(14,165,233,.10), transparent 62%);
}
h1,h2,h3,h4{line-height:1.35;margin:0;font-weight:600;letter-spacing:-.01em}
p{margin:0}
a{color:var(--brand-600);text-decoration:none}
a:hover{text-decoration:underline}
html[data-theme="dark"] a{color:var(--brand-300)}
button{font-family:inherit}
:focus-visible{outline:3px solid var(--brand-400);outline-offset:2px;border-radius:6px}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 18px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ── Header ───────────────────────────────────────────────────────── */
.site-header{
  position:sticky;top:0;z-index:60;
  background:color-mix(in srgb, var(--surface) 82%, transparent);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--border);
}
.site-header .wrap{display:flex;align-items:center;gap:14px;height:62px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:1.02rem;color:var(--text)}
.brand:hover{text-decoration:none}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand-400),var(--blue-600));
  box-shadow:0 6px 16px -6px rgba(6,182,212,.7);flex:none;
}
.brand-mark svg{width:21px;height:21px;color:#fff}
.brand small{display:block;font-weight:400;font-size:.72rem;color:var(--text-3);line-height:1.2;letter-spacing:.02em}
.header-spacer{flex:1}
.icon-btn{
  width:38px;height:38px;border-radius:11px;border:1px solid var(--border);
  background:var(--surface);color:var(--text-2);display:grid;place-items:center;cursor:pointer;
  transition:.18s;flex:none;
}
.icon-btn:hover{border-color:var(--brand-400);color:var(--brand-600);transform:translateY(-1px)}
.icon-btn svg{width:19px;height:19px}
.icon-btn .moon{display:none}
html[data-theme="dark"] .icon-btn .sun{display:none}
html[data-theme="dark"] .icon-btn .moon{display:block}
@media (prefers-color-scheme:dark){
  html:not([data-theme="light"]) .icon-btn .sun{display:none}
  html:not([data-theme="light"]) .icon-btn .moon{display:block}
}

/* ── Hero ─────────────────────────────────────────────────────────── */
.hero{padding:46px 0 30px;text-align:center}
.hero h1{font-size:clamp(1.75rem,4.6vw,2.85rem);font-weight:700;letter-spacing:-.025em}
.hero h1 .grad{
  background:linear-gradient(100deg,var(--brand-500),var(--blue-600) 55%,var(--violet-500));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero p{margin:14px auto 0;max-width:640px;color:var(--text-2);font-size:1.03rem}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:20px}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:999px;
  background:var(--surface);border:1px solid var(--border);font-size:.82rem;color:var(--text-2);
  box-shadow:var(--shadow-sm);
}
.pill svg{width:14px;height:14px;color:var(--good-500)}

/* ── Layout ───────────────────────────────────────────────────────── */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:26px;align-items:start;padding-bottom:56px}
@media (max-width:1000px){.layout{grid-template-columns:1fr}}

.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);overflow:hidden;
}
.card + .card{margin-top:20px}
.card-head{padding:18px 22px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px}
.card-head h2{font-size:1.06rem}
.card-head .step-no{
  width:27px;height:27px;border-radius:9px;background:linear-gradient(140deg,var(--brand-400),var(--blue-600));
  color:#fff;display:grid;place-items:center;font-size:.85rem;font-weight:700;flex:none;
}
.card-head .sub{font-size:.8rem;color:var(--text-3);font-weight:400;margin-top:1px}
.card-body{padding:20px 22px}

/* ── Tabs ─────────────────────────────────────────────────────────── */
.mode-tabs{display:flex;gap:6px;padding:6px;background:var(--surface-3);border-radius:14px;margin-bottom:22px}
.mode-tabs button{
  flex:1;padding:10px 12px;border:0;border-radius:10px;background:transparent;cursor:pointer;
  font-size:.92rem;font-weight:600;color:var(--text-2);transition:.18s;
}
.mode-tabs button[aria-selected="true"]{background:var(--surface);color:var(--brand-600);box-shadow:var(--shadow-sm)}
html[data-theme="dark"] .mode-tabs button[aria-selected="true"]{color:var(--brand-300)}

/* ── Form controls ────────────────────────────────────────────────── */
.field{margin-bottom:19px}
.field:last-child{margin-bottom:0}
.field > label, .field-label{
  display:flex;align-items:center;gap:7px;font-size:.9rem;font-weight:600;margin-bottom:8px;color:var(--text);
}
.field .hint{font-size:.79rem;color:var(--text-3);font-weight:400;margin-top:5px;line-height:1.5}
.help{
  width:17px;height:17px;border-radius:50%;border:1px solid var(--border-strong);background:transparent;
  color:var(--text-3);font-size:.68rem;font-weight:700;cursor:help;display:inline-grid;place-items:center;
  flex:none;line-height:1;padding:0;
}
.help:hover{border-color:var(--brand-500);color:var(--brand-600)}

input[type=text],input[type=number],select,textarea{
  width:100%;padding:11px 13px;border:1.5px solid var(--border);border-radius:var(--radius-sm);
  background:var(--surface);color:var(--text);font-size:.95rem;font-family:inherit;transition:.16s;
}
input[type=number]{font-variant-numeric:tabular-nums}
input:focus,select:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand-500) 18%,transparent)}
select{appearance:none;cursor:pointer;padding-right:36px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;background-size:15px;
}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:560px){.grid3{grid-template-columns:1fr 1fr}}
.with-unit{position:relative}
.with-unit input{padding-right:52px}
.with-unit .unit{position:absolute;right:13px;top:50%;transform:translateY(-50%);color:var(--text-3);font-size:.85rem;pointer-events:none}

/* ── Choice chips (ตัวเลือกแบบการ์ด) ───────────────────────────── */
.choices{display:grid;gap:9px}
.choices.c2{grid-template-columns:1fr 1fr}
.choices.c3{grid-template-columns:repeat(3,1fr)}
.choices.c4{grid-template-columns:repeat(4,1fr)}
@media (max-width:620px){.choices.c3,.choices.c4{grid-template-columns:1fr 1fr}}
.choice{
  position:relative;display:flex;flex-direction:column;gap:2px;padding:11px 12px;cursor:pointer;
  border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);
  transition:.16s;text-align:center;align-items:center;
}
.choice:hover{border-color:var(--brand-300);background:var(--surface-2)}
.choice input{position:absolute;opacity:0;pointer-events:none}
.choice .ico{font-size:1.28rem;line-height:1.3}
.choice .t{font-size:.85rem;font-weight:600}
.choice .d{font-size:.72rem;color:var(--text-3);line-height:1.4}
.choice:has(input:checked){
  border-color:var(--brand-500);background:color-mix(in srgb,var(--brand-500) 9%,var(--surface));
  box-shadow:0 0 0 3px color-mix(in srgb,var(--brand-500) 13%,transparent);
}
.choice:has(input:checked) .t{color:var(--brand-700)}
html[data-theme="dark"] .choice:has(input:checked) .t{color:var(--brand-200)}

/* ── Compass (เลือกทิศ) ───────────────────────────────────────────── */
.compass{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;max-width:270px;margin-inline:auto}
.compass .choice{padding:9px 4px}
.compass .choice .t{font-size:.8rem}
.compass .center{
  display:grid;place-items:center;border-radius:var(--radius-sm);background:var(--surface-3);
  color:var(--text-3);font-size:.7rem;font-weight:600;
}

/* ── Toggle switch ────────────────────────────────────────────────── */
.switch{display:flex;align-items:center;gap:11px;cursor:pointer;user-select:none}
.switch input{position:absolute;opacity:0}
.switch .track{
  width:44px;height:25px;border-radius:999px;background:var(--border-strong);position:relative;transition:.2s;flex:none;
}
.switch .track::after{
  content:'';position:absolute;top:3px;left:3px;width:19px;height:19px;border-radius:50%;
  background:#fff;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.3);
}
.switch input:checked + .track{background:var(--brand-500)}
.switch input:checked + .track::after{transform:translateX(19px)}

/* ── Range slider ─────────────────────────────────────────────────── */
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:99px;background:var(--surface-3);
  outline:none;margin:10px 0;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:22px;height:22px;border-radius:50%;cursor:pointer;
  background:linear-gradient(140deg,var(--brand-400),var(--blue-600));border:3px solid var(--surface);
  box-shadow:0 2px 8px rgba(6,182,212,.5);
}
input[type=range]::-moz-range-thumb{
  width:18px;height:18px;border-radius:50%;cursor:pointer;border:3px solid var(--surface);
  background:var(--brand-500);box-shadow:0 2px 8px rgba(6,182,212,.5);
}
.range-row{display:flex;align-items:center;gap:14px}
.range-row .val{
  min-width:78px;text-align:center;padding:6px 8px;border-radius:9px;background:var(--surface-3);
  font-weight:700;font-size:.95rem;font-variant-numeric:tabular-nums;
}

/* ── Result panel ─────────────────────────────────────────────────── */
.result-col{position:sticky;top:80px}
@media (max-width:1000px){.result-col{position:static}}

.result-hero{
  border-radius:var(--radius-lg);padding:26px 24px;color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(145deg,var(--blue-700),var(--brand-600) 55%,var(--brand-500));
  box-shadow:var(--shadow-glow);
}
.result-hero::after{
  content:'';position:absolute;inset:0;opacity:.5;pointer-events:none;
  background:radial-gradient(420px 220px at 105% -20%, rgba(255,255,255,.30), transparent 70%);
}
.result-hero .lbl{font-size:.83rem;opacity:.88;letter-spacing:.02em;position:relative}
.result-hero .big{
  font-size:clamp(2.6rem,9vw,3.5rem);font-weight:700;line-height:1.05;letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;position:relative;margin-top:2px;
}
.result-hero .big span{font-size:1.05rem;font-weight:500;opacity:.9;margin-left:6px;letter-spacing:0}
.result-hero .sub{font-size:.88rem;opacity:.92;margin-top:8px;position:relative;line-height:1.55}
.result-hero .chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px;position:relative}
.result-hero .chips span{
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.24);
  padding:4px 11px;border-radius:999px;font-size:.78rem;backdrop-filter:blur(6px);
}

.kpis{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.kpi{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:14px 15px;box-shadow:var(--shadow-sm);
}
.kpi .k{font-size:.78rem;color:var(--text-3);display:flex;align-items:center;gap:5px}
.kpi .v{font-size:1.4rem;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.02em;margin-top:2px}
.kpi .v small{font-size:.78rem;font-weight:500;color:var(--text-3);margin-left:3px}
.kpi.money .v{color:var(--heat-600)}
html[data-theme="dark"] .kpi.money .v{color:var(--heat-400)}
.kpi.wide{grid-column:1/-1}

/* ── Alerts ───────────────────────────────────────────────────────── */
.alert{
  display:flex;gap:11px;padding:13px 15px;border-radius:var(--radius);font-size:.87rem;line-height:1.6;
  border:1px solid;margin-top:12px;
}
.alert svg{width:19px;height:19px;flex:none;margin-top:2px}
.alert strong{display:block;margin-bottom:2px}
.alert.warn{background:color-mix(in srgb,var(--warn-500) 11%,var(--surface));border-color:color-mix(in srgb,var(--warn-500) 34%,transparent);color:var(--text)}
.alert.warn svg{color:var(--warn-500)}
.alert.danger{background:color-mix(in srgb,var(--hot-500) 10%,var(--surface));border-color:color-mix(in srgb,var(--hot-500) 32%,transparent);color:var(--text)}
.alert.danger svg{color:var(--hot-500)}
.alert.ok{background:color-mix(in srgb,var(--good-500) 10%,var(--surface));border-color:color-mix(in srgb,var(--good-500) 30%,transparent);color:var(--text)}
.alert.ok svg{color:var(--good-600)}
.alert.info{background:color-mix(in srgb,var(--blue-500) 9%,var(--surface));border-color:color-mix(in srgb,var(--blue-500) 28%,transparent);color:var(--text)}
.alert.info svg{color:var(--blue-600)}

/* ── Breakdown bars ───────────────────────────────────────────────── */
.bars{display:flex;flex-direction:column;gap:10px}
.bar-row{display:grid;grid-template-columns:150px 1fr auto;gap:12px;align-items:center;font-size:.86rem}
@media (max-width:520px){.bar-row{grid-template-columns:110px 1fr auto;gap:8px;font-size:.8rem}}
.bar-row .nm{display:flex;align-items:center;gap:7px;color:var(--text-2)}
.bar-row .dot{width:10px;height:10px;border-radius:3px;flex:none}
.bar-track{height:11px;border-radius:99px;background:var(--surface-3);overflow:hidden}
.bar-fill{height:100%;border-radius:99px;transition:width .6s cubic-bezier(.22,1,.36,1)}
.bar-row .vl{font-variant-numeric:tabular-nums;font-weight:600;min-width:74px;text-align:right;font-size:.83rem}
.bar-row .vl em{font-style:normal;color:var(--text-3);font-weight:400;font-size:.78rem;margin-left:4px}

/* ── Chart ────────────────────────────────────────────────────────── */
.chart-wrap{overflow-x:auto;padding-bottom:4px}
.chart{width:100%;min-width:520px;height:auto;display:block}
.chart .grid-line{stroke:var(--border);stroke-width:1;stroke-dasharray:3 4}
.chart .axis-txt{fill:var(--text-3);font-size:11px;font-family:var(--font)}
.chart .col-lbl{fill:var(--text-2);font-size:10.5px;font-family:var(--font);font-weight:600}

/* ── Tables ───────────────────────────────────────────────────────── */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border)}
table{width:100%;border-collapse:collapse;font-size:.88rem;min-width:520px}
th,td{padding:11px 13px;text-align:right;border-bottom:1px solid var(--border);white-space:nowrap}
th:first-child,td:first-child{text-align:left;white-space:normal}
thead th{background:var(--surface-3);font-weight:600;font-size:.82rem;color:var(--text-2);position:sticky;top:0}
tbody tr:last-child td{border-bottom:0}
tbody tr.is-current{background:color-mix(in srgb,var(--brand-500) 8%,transparent)}
tbody tr.is-current td{font-weight:600}
td.num,th.num{font-variant-numeric:tabular-nums}
.tag{display:inline-block;padding:2px 8px;border-radius:99px;font-size:.72rem;font-weight:600}
.tag.good{background:color-mix(in srgb,var(--good-500) 16%,transparent);color:var(--good-600)}
.tag.mid{background:color-mix(in srgb,var(--warn-500) 18%,transparent);color:#b45309}
.tag.bad{background:color-mix(in srgb,var(--hot-500) 15%,transparent);color:var(--hot-600)}
html[data-theme="dark"] .tag.mid{color:var(--warn-500)}

/* ── Accordion / FAQ ──────────────────────────────────────────────── */
details.acc{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);margin-bottom:10px;overflow:hidden}
details.acc summary{
  padding:14px 17px;cursor:pointer;font-weight:600;font-size:.94rem;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
details.acc summary::-webkit-details-marker{display:none}
details.acc summary::after{content:'+';font-size:1.3rem;color:var(--text-3);font-weight:400;line-height:1}
details.acc[open] summary::after{content:'−'}
details.acc summary:hover{background:var(--surface-2)}
details.acc .acc-body{padding:0 17px 16px;font-size:.9rem;color:var(--text-2);line-height:1.75}
details.acc .acc-body p + p{margin-top:10px}
details.acc .acc-body ul{margin:8px 0;padding-left:20px}
details.acc .acc-body li{margin-bottom:5px}

/* ── Buttons ──────────────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:12px;
  border:1.5px solid var(--border);background:var(--surface);color:var(--text);font-weight:600;font-size:.92rem;
  cursor:pointer;transition:.18s;
}
.btn:hover{border-color:var(--brand-400);transform:translateY(-1px);box-shadow:var(--shadow);text-decoration:none}
.btn svg{width:17px;height:17px}
.btn.primary{
  background:linear-gradient(140deg,var(--brand-500),var(--blue-600));color:#fff;border-color:transparent;
  box-shadow:0 8px 20px -8px rgba(6,182,212,.7);
}
.btn.primary:hover{filter:brightness(1.06)}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}

/* ── Section headings ─────────────────────────────────────────────── */
.sec-title{display:flex;align-items:center;gap:11px;margin:38px 0 16px}
.sec-title h2{font-size:1.25rem}
.sec-title .line{flex:1;height:1px;background:var(--border)}
.sec-lead{color:var(--text-2);font-size:.93rem;margin-bottom:16px;max-width:760px}

/* ── Ad slots ─────────────────────────────────────────────────────── */
.ad-slot{margin:26px 0;text-align:center;min-height:90px}
.ad-slot .ad-label{font-size:.7rem;color:var(--text-3);letter-spacing:.08em;margin-bottom:6px;text-transform:uppercase}
.ad-slot ins{display:block}

/* ── Footer ───────────────────────────────────────────────────────── */
.site-footer{border-top:1px solid var(--border);background:var(--surface);padding:34px 0 40px;margin-top:30px}
.site-footer .cols{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:28px}
@media (max-width:760px){.site-footer .cols{grid-template-columns:1fr}}
.site-footer h4{font-size:.92rem;margin-bottom:10px}
.site-footer p,.site-footer li{font-size:.85rem;color:var(--text-2);line-height:1.75}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:5px}
.legal{margin-top:26px;padding-top:18px;border-top:1px solid var(--border);font-size:.79rem;color:var(--text-3);line-height:1.7}

/* ── Utilities ────────────────────────────────────────────────────── */
.mt0{margin-top:0}.mt8{margin-top:8px}.mt12{margin-top:12px}.mt16{margin-top:16px}.mt24{margin-top:24px}
.hidden{display:none !important}
.text-c{text-align:center}
.small{font-size:.83rem;color:var(--text-3);line-height:1.65}
.rows{display:flex;flex-direction:column;gap:10px}
.kv{display:flex;justify-content:space-between;gap:14px;font-size:.89rem;padding:8px 0;border-bottom:1px dashed var(--border)}
.kv:last-child{border-bottom:0}
.kv .k{color:var(--text-2)}
.kv .v{font-weight:600;font-variant-numeric:tabular-nums;text-align:right}
.divider{height:1px;background:var(--border);margin:20px 0}

.wall-row{
  display:grid;grid-template-columns:1.1fr .9fr 1.4fr auto;gap:9px;align-items:end;
  padding:12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);margin-bottom:9px;
}
@media (max-width:680px){.wall-row{grid-template-columns:1fr 1fr}}
.wall-row .field{margin-bottom:0}
.wall-row .field > label{font-size:.76rem;margin-bottom:4px;color:var(--text-3)}
.del-btn{
  width:36px;height:38px;border-radius:9px;border:1px solid var(--border);background:var(--surface);
  color:var(--text-3);cursor:pointer;display:grid;place-items:center;
}
.del-btn:hover{border-color:var(--hot-500);color:var(--hot-500)}

/* ── เทียบเกณฑ์ราชการ ────────────────────────────────────────────── */
.cmp{display:flex;flex-direction:column;gap:14px}
.cmp-row{
  display:grid;grid-template-columns:220px 1fr auto;gap:16px;align-items:center;
  padding:14px 16px;border:1.5px solid var(--border);border-radius:var(--radius);background:var(--surface);
}
@media (max-width:720px){.cmp-row{grid-template-columns:1fr;gap:8px;text-align:left}}
.cmp-row.is-ours{border-color:var(--brand-500);background:color-mix(in srgb,var(--brand-500) 7%,var(--surface))}
.cmp-src{display:flex;flex-direction:column;gap:2px}
.cmp-src .who{font-weight:700;font-size:.94rem}
.cmp-src .what{font-size:.78rem;color:var(--text-3);line-height:1.45}
.cmp-bar{height:12px;border-radius:99px;background:var(--surface-3);overflow:hidden;min-width:60px}
.cmp-bar span{display:block;height:100%;border-radius:99px;transition:width .6s cubic-bezier(.22,1,.36,1)}
.cmp-val{text-align:right;min-width:132px}
.cmp-val .n{font-size:1.18rem;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.cmp-val .u{font-size:.76rem;color:var(--text-3);display:block;line-height:1.4}
.cmp-badge{
  display:inline-block;margin-top:3px;padding:2px 8px;border-radius:99px;
  font-size:.71rem;font-weight:600;
}

/* ── รายการคุณลักษณะเฉพาะ (งานจัดซื้อ) ───────────────────────────── */
.spec-list{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:9px}
.spec-list li{font-size:.92rem;color:var(--text-2);line-height:1.7}
.spec-list li strong{color:var(--text)}

/* ── Print ────────────────────────────────────────────────────────── */
@media print{
  body{background:#fff;font-size:12px}
  .site-header,.hero-badges,.ad-slot,.btn-row,.site-footer .cols,.icon-btn,.mode-tabs{display:none !important}
  .layout{grid-template-columns:1fr;gap:12px}
  .card{box-shadow:none;border:1px solid #ccc;break-inside:avoid;page-break-inside:avoid}
  .result-hero{background:#0e7490 !important;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .chart{min-width:0}
  a[href]::after{content:''}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}