/* ==========================================================================
   Route Summarization Calculator page. Enqueued only via
   is_page('route-summarization-calculator'). Self-contained per the site's
   per-page-stylesheet convention.
   ========================================================================== */

.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---- shared control primitives ---- */
.subnet-field label{display:block;font-size:12.5px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}
.subnet-field input,.subnet-field textarea{width:100%;padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);font:600 16px/1.4 var(--font-mono);color:var(--ink);background:var(--white)}
.subnet-field input{height:52px;padding:0 16px}
.subnet-field input:focus-visible,.subnet-field textarea:focus-visible{outline:3px solid var(--blue);outline-offset:1px;border-color:var(--blue)}
.subnet-field textarea{resize:vertical;min-height:140px}
.subnet-input-hint{font-size:12.5px;color:var(--muted);margin:8px 0 0;line-height:1.5}
.subnet-input-hint a{color:var(--blue);text-decoration:underline}

.subnet-error{margin-top:14px;padding:13px 16px;border:1px solid #F3C6C1;background:#FDF2F1;border-radius:var(--radius-sm);color:var(--red);font-size:14px;font-weight:600}
.subnet-error[hidden]{display:none}

.subnet-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--teal);margin-bottom:12px}
.subnet-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);flex:none}
.subnet-hero-lede{color:var(--muted);font-size:15.5px;line-height:1.6;margin:0 0 22px;max-width:52ch}

.subnet-btn{height:50px;padding:0 22px;border-radius:999px;border:0;background:var(--blue);color:var(--white);font-weight:700;font-size:14.5px;font-family:ui-sans-serif,sans-serif;cursor:pointer;transition:background .15s}
.subnet-btn:hover,.subnet-btn:focus-visible{background:#1D4FC4}
.subnet-btn:disabled{background:var(--border);color:var(--muted);cursor:not-allowed}
.subnet-btn.subnet-btn-ghost{background:var(--white);border:1px solid var(--border);color:var(--ink)}
.subnet-btn.subnet-btn-ghost:hover,.subnet-btn.subnet-btn-ghost:focus-visible{border-color:var(--blue);color:var(--blue);background:#EAF1FE}
.subnet-btn.subnet-btn-ghost:disabled{background:var(--white);border-color:var(--border);color:var(--border)}

.subnet-btn-tertiary{height:auto;padding:10px 14px;border:1px solid var(--border);border-radius:999px;background:var(--white);color:var(--muted);font-weight:600;font-size:13px;font-family:ui-sans-serif,sans-serif;cursor:pointer}
.subnet-btn-tertiary:hover,.subnet-btn-tertiary:focus-visible{color:var(--blue);border-color:#BFD3F7;background:#EAF1FE}
.subnet-btn-tertiary:disabled{color:var(--border);cursor:not-allowed}

.subnet-family-toggle{display:inline-flex;flex-wrap:wrap;gap:4px;background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:4px}
.subnet-family-toggle label{position:relative;font-size:13px;font-weight:600;color:var(--muted);padding:8px 16px;border-radius:999px;cursor:pointer}
.subnet-family-toggle input{position:absolute;opacity:0;width:1px;height:1px}
.subnet-family-toggle label:has(input:checked){background:var(--navy);color:var(--white)}
.subnet-family-toggle input:focus-visible ~ span{outline:3px solid var(--blue);outline-offset:2px;border-radius:999px}

.info-dot{flex:none;width:15px;height:15px;border-radius:50%;border:1.4px solid var(--muted);display:inline-flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;margin-top:1px}

.subnet-adv-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}
.subnet-adv-row{display:flex;justify-content:space-between;gap:10px;padding:12px 15px;border-bottom:1px solid var(--border);font-size:13.5px}
.subnet-adv-row:nth-child(odd){border-right:1px solid var(--border)}
.subnet-adv-row .subnet-adv-label{color:var(--muted);font-weight:600}
.subnet-adv-row .subnet-adv-value{font-family:var(--font-mono);color:var(--ink);text-align:right;word-break:break-word}

.subnet-table-wrap{overflow-x:auto;border-radius:10px;border:1px solid var(--border)}
.subnet-table-wrap table{width:100%;border-collapse:collapse;font-size:13.5px}
.subnet-table-wrap thead th{background:var(--navy);color:var(--white);font-size:12px;letter-spacing:.03em;font-weight:700;padding:12px 14px;text-align:left;white-space:nowrap}
.subnet-table-wrap td{padding:12px 14px;border-bottom:1px solid var(--border);color:var(--ink);font-family:var(--font-mono)}
.subnet-table-wrap tbody tr{cursor:pointer}
.subnet-table-wrap tbody tr:nth-child(even){background:var(--bg)}
.subnet-table-wrap tbody tr:last-child td{border-bottom:none}
.subnet-table-wrap tbody tr.is-selected-row{background:#EAF1FE}
.subnet-table-wrap tbody tr[role="button"]:focus-visible{outline:3px solid var(--blue);outline-offset:-3px}

.subnet-disclosure{margin-top:20px}
.subnet-disclosure summary{cursor:pointer;font-size:13.5px;font-weight:700;color:var(--navy);padding:4px 0}
.subnet-disclosure-body{padding-top:14px}

/* ---- hero ---- */
.vlsm-hero{padding:92px 0 44px;background:radial-gradient(880px 360px at 88% 0%,rgba(37,99,235,.05),rgba(37,99,235,0) 60%),linear-gradient(180deg,#FBFCFE,var(--white) 62%)}
.vlsm-breadcrumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);margin-bottom:20px}
.vlsm-breadcrumb a{color:var(--muted)}
.vlsm-breadcrumb a:hover,.vlsm-breadcrumb a:focus-visible{color:var(--blue)}
.vlsm-breadcrumb [aria-current]{color:var(--ink);font-weight:600}
.vlsm-hero-head{max-width:800px}
.vlsm-hero-head h1{font-size:clamp(30px,3.6vw,44px);color:var(--navy);margin:0 0 10px;line-height:1.12;letter-spacing:-.01em}
.vlsm-hero-note{font-size:13px;color:var(--muted);margin:0}

/* ---- tool shell ---- */
.vlsm-tool{padding:0 0 56px;background:var(--white)}
.vlsm-tool-shell{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md);padding:0;overflow:hidden}
.vlsm-tool-section{padding:26px 28px}
.vlsm-tool-section + .vlsm-tool-section{border-top:1px solid var(--border)}
.vlsm-tool-section-tint{background:var(--bg)}
.vlsm-section-heading{font-size:13px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin:24px 0 16px}
.vlsm-section-heading:first-child{margin-top:0}
.vlsm-actions{display:flex;gap:10px;flex-wrap:wrap}
.vlsm-normalized-note{margin:10px 0 0;padding:10px 14px;border-radius:var(--radius-sm);background:#EAF1FE;border:1px solid #BFD3F7;color:#1D4FC4;font-size:13px;font-weight:600}
.vlsm-normalized-note[hidden]{display:none}

.crc-field{max-width:420px}
.crc-field-wide{max-width:100%}
.crc-range-row{display:flex;gap:14px;flex-wrap:wrap}

.rs-safety-note{display:flex;align-items:flex-start;gap:8px;margin:0 0 18px;padding:12px 16px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:12.5px;color:var(--muted);line-height:1.5}

/* ---- results ---- */
.vlsm-results[hidden]{display:none}
.vlsm-status-line{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:700;color:var(--teal);margin:0 0 18px}
.vlsm-status-line .tick{width:18px;height:18px;border-radius:50%;background:var(--teal);color:var(--white);display:inline-flex;align-items:center;justify-content:center;font-size:11px;flex:none}

.rs-family-panel + .rs-family-panel{margin-top:44px;padding-top:36px;border-top:2px solid var(--border)}
.rs-family-heading{font-size:19px;color:var(--navy);margin:0 0 20px}

.rs-note{font-size:13px;color:var(--muted);margin:0 0 16px}
.rs-note:empty{display:none}
.rs-note[hidden]{display:none}
.rs-explain{font-size:14.5px;color:var(--ink);line-height:1.6;margin:14px 0 0}
.rs-explain[hidden]{display:none}

/* ---- empty state ---- */
.rs-empty-state{padding:28px 24px;border:1px dashed var(--border);border-radius:var(--radius-sm);background:var(--bg);text-align:center;margin-top:8px}
.rs-empty-state[hidden]{display:none}
.rs-empty-state h3{font-size:15px;color:var(--navy);margin:0 0 6px}
.rs-empty-state p{font-size:13.5px;color:var(--muted);margin:0;max-width:52ch;margin-inline:auto}

/* ---- verdict (primary result element) ---- */
.rs-verdict{padding:26px 28px;border-radius:var(--radius);margin-bottom:22px}
.rs-verdict-exact{background:linear-gradient(180deg,var(--navy),#0C1E33)}
.rs-verdict-partial{background:linear-gradient(180deg,var(--navy),#0C1E33)}
.rs-verdict-eyebrow{display:block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:#8FA3BD;margin-bottom:10px}
.rs-verdict-headline{margin:0 0 8px;font-size:clamp(19px,2.4vw,24px);color:var(--white);line-height:1.25}
.rs-verdict-cidr{margin:0 0 16px;font:700 34px var(--font-mono);color:#7FE0C8;word-break:break-all}
.rs-verdict-support{margin:0 0 14px;font-size:14.5px;color:#C7D0DE}
.rs-verdict-stats{display:flex;flex-wrap:wrap;gap:10px}
.rs-verdict-stat{font-size:12.5px;font-weight:600;color:#DCE4F0;background:rgba(255,255,255,.08);border-radius:999px;padding:7px 14px}
.rs-verdict-stat-positive{color:#7FE0C8;background:rgba(127,224,200,.14)}
.rs-verdict-routelist{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.rs-verdict-route-chip{font:700 13px var(--font-mono);background:rgba(255,255,255,.08);color:var(--white);border-radius:999px;padding:7px 14px;display:inline-block}
.rs-verdict-route-chip-covering{background:rgba(246,201,122,.16);color:#F6C97A}
.rs-verdict-alt{padding-top:16px;border-top:1px solid rgba(255,255,255,.12)}
.rs-verdict-alt-label{display:block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:#8FA3BD;margin-bottom:8px}
.rs-verdict-alt-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;min-width:0}
.rs-verdict-alt-cidr{font:700 20px var(--font-mono);color:var(--white);overflow-wrap:anywhere;min-width:0}
.rs-verdict-alt-badge{font-size:12px;font-weight:700;color:#7A5510;background:#F6C97A;border-radius:999px;padding:5px 12px}

/* ---- exact vs covering comparison ---- */
.rs-compare{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:22px}
.rs-compare[hidden]{display:none}
.rs-compare-col{padding:20px 22px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--white);min-width:0}
.rs-compare-exact{border-color:#BFE3D5;background:#F5FBF9}
.rs-compare-covering{border-color:#EFD7AE;background:#FDFAF3}
.rs-compare-col h3{font-size:14.5px;color:var(--navy);margin:0 0 6px}
.rs-compare-tagline{font-size:13px;color:var(--muted);line-height:1.5;margin:0 0 14px;min-height:2.6em}
.rs-compare-routes{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.rs-compare-routes .rs-verdict-route-chip{background:var(--white);color:var(--ink);border:1px solid var(--border)}
.rs-compare-routes .rs-verdict-route-chip-covering{background:var(--white);color:#7A5510;border:1px solid #EFD7AE}
.rs-compare-stats{list-style:none;margin:0 0 16px;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px 16px}
.rs-compare-stats li{display:flex;flex-direction:column;font-size:11px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.03em;min-width:0}
.rs-compare-stats b{font:700 15px var(--font-mono);color:var(--navy);text-transform:none;letter-spacing:0;margin-top:3px;overflow-wrap:anywhere}

/* ---- 4 primary metrics ---- */
.rs-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;margin-bottom:24px}
.rs-metric{background:var(--white);padding:16px 14px;display:flex;flex-direction:column;gap:5px;min-width:0}
.rs-metric-label{font-size:10.5px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.rs-metric-value{font:700 19px var(--font-mono);color:var(--navy);overflow-wrap:anywhere}

/* ---- address coverage visualization ---- */
.rs-coverage{margin:0 0 22px}
.rs-coverage[hidden]{display:none}
.rs-coverage-caption{font-size:13px;color:var(--muted);margin:0 0 10px}
.rs-coverage-track{display:flex;height:40px;border-radius:8px;overflow:hidden;border:1px solid var(--border)}
.rs-coverage-seg{height:100%}
.rs-coverage-seg-supplied{background:var(--blue)}
.rs-coverage-seg-extra{background:repeating-linear-gradient(135deg,var(--bg),var(--bg) 6px,#E7ECF2 6px,#E7ECF2 12px)}
.rs-coverage-legend{display:flex;gap:18px;margin-top:10px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.rs-coverage-legend span{display:inline-flex;align-items:center;gap:6px}
.rs-legend-supplied{width:12px;height:12px;border-radius:3px;background:var(--blue);display:inline-block}
.rs-legend-extra-dot{width:12px;height:12px;border-radius:3px;background:repeating-linear-gradient(135deg,var(--bg),var(--bg) 3px,#E7ECF2 3px,#E7ECF2 6px);border:1px solid var(--border);display:inline-block}
.rs-coverage-props{font-size:13px;color:var(--ink);margin:12px 0 0}
.rs-coverage-props strong{color:var(--navy)}

/* ---- additional address space ---- */
.rs-additional[hidden]{display:none}
.rs-additional{margin:0 0 22px}
.rs-additional-disclosure summary{font-size:13.5px}

/* ---- before/after ---- */
.rs-before-after{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:16px 0 24px}
.rs-ba-col h4{margin:0 0 8px;font-size:11px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.rs-ba-col pre{margin:0;padding:14px 16px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);font:600 13px var(--font-mono);color:var(--ink);white-space:pre-wrap;word-break:break-word;max-height:220px;overflow-y:auto}
.rs-ba-col-alt pre{background:#FDFAF3;border-color:#EFD7AE}
.rs-ba-note{font-size:12px;color:#7A5510;margin:6px 0 0}

/* ---- summary bar / detail panel (shared with other tools) ---- */
.vlsm-detail-panel{margin-top:14px;padding:18px 20px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);min-height:1px}
.vlsm-detail-panel-empty{font-size:13px;color:var(--muted)}
.vlsm-detail-title{font-size:15px;font-weight:700;color:var(--navy);margin:0 0 4px}
.vlsm-detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 20px}
.vlsm-detail-row{display:flex;flex-direction:column;gap:3px}
.vlsm-detail-label{font-size:11px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.03em}
.vlsm-detail-value{font:600 13.5px var(--font-mono);color:var(--ink);word-break:break-all}

.vlsm-table-wrap table{min-width:520px}
.vlsm-export-actions{margin-top:24px;padding-top:20px;border-top:1px solid var(--border)}

/* ---- reduced motion ---- */
@media(prefers-reduced-motion:reduce){
	.subnet-btn{transition:none!important}
}

/* ---- responsive ---- */
@media(max-width:1050px){
	.vlsm-hero{padding-top:96px}
	.vlsm-detail-grid{grid-template-columns:1fr 1fr}
	.rs-before-after{grid-template-columns:1fr}
	.rs-compare{grid-template-columns:1fr}
}
@media(max-width:768px){
	.vlsm-tool-section{padding:22px 20px}
	.crc-range-row{flex-direction:column;align-items:stretch}
	.rs-verdict{padding:22px 20px}
	.rs-verdict-cidr{font-size:26px}
	.rs-metrics{grid-template-columns:1fr 1fr}
}
@media(max-width:620px){
	.vlsm-hero{padding:84px 0 24px}
	.vlsm-detail-grid{grid-template-columns:1fr}
	.rs-metrics{grid-template-columns:1fr 1fr}
	.rs-compare-stats{grid-template-columns:1fr 1fr}
	.rs-verdict-alt-row{flex-direction:column;align-items:flex-start}
}

/* ---- guide / educational content ---- */
.subnet-guide{padding:56px 0;background:var(--bg)}
.subnet-guide-inner{max-width:820px;margin:0 auto}
.subnet-guide h2{font-size:24px;color:var(--navy);margin:44px 0 14px}
.subnet-guide h2:first-child{margin-top:0}
.subnet-guide h3{font-size:17px;color:var(--navy);margin:28px 0 10px}
.subnet-guide p{color:var(--ink);font-size:15.5px;line-height:1.65;margin:0 0 14px;max-width:74ch}
.subnet-guide p a{color:var(--blue);text-decoration:underline}
.subnet-guide code{font-family:var(--font-mono);background:var(--white);border:1px solid var(--border);border-radius:4px;padding:1px 6px;font-size:.92em}
.subnet-related-list{display:flex;flex-direction:column;gap:6px;font-size:14.5px;color:var(--muted)}
.subnet-related-list a{color:var(--blue);text-decoration:underline;font-weight:600}

/* ==========================================================================
   RS-F2 premium visual polish (visual/UX only — no engine change)
   ========================================================================== */

/* hero: capability row, benefit lead, trust row, static BEFORE/EXACT/COVERING preview */
.rs-hero-caps{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;margin:6px 0 18px}
.rs-hero-cap{display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
.rs-hero-cap::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--teal);flex:none}
.rs-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,380px);gap:40px;align-items:start}
.rs-hero-benefit{margin:0 0 12px;font-size:clamp(17px,1.9vw,21px);font-weight:600;color:var(--ink);line-height:1.36;max-width:32ch}
.rs-hero-cta{display:flex;flex-wrap:wrap;gap:10px;margin:2px 0 22px}
.rs-hero-trust{display:flex;flex-wrap:wrap;gap:10px 22px;margin:0;padding-top:18px;border-top:1px solid var(--border)}
.rs-hero-trust-item{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--muted)}
.rs-hero-trust-item::before{content:"\2713";color:var(--teal);font-weight:700;flex:none}

.rs-hero-preview{border:1px solid var(--border);border-radius:16px;background:var(--white);box-shadow:var(--shadow-md);padding:18px}
.rs-hero-preview-eyebrow{display:flex;align-items:center;gap:7px;font-size:10px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.rs-hero-preview-dot{width:5px;height:5px;border-radius:50%;background:var(--teal);flex:none}
.rs-hero-preview-row{margin:0}
.rs-hero-preview-tag{display:block;font-size:9.5px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:5px}
.rs-hero-preview-tag-amber{color:#8A6314}
.rs-hero-preview-track{position:relative;display:block;height:24px;border-radius:6px;background:var(--bg);border:1px solid var(--border);overflow:hidden}
.rs-hero-preview-track-cover{background:repeating-linear-gradient(135deg,#FBF3E4,#FBF3E4 5px,#F3E1BF 5px,#F3E1BF 10px);border-color:#EAD3A6}
.rs-hero-preview-seg{position:absolute;top:0;bottom:0;background:var(--blue);border-radius:2px}
.rs-hpseg-a{left:0;width:12.5%}
.rs-hpseg-b{left:50%;width:12.5%}
.rs-hero-preview-cidrs{display:block;font:600 10px var(--font-mono);color:var(--muted);margin:5px 0 0;overflow-wrap:anywhere}
.rs-hero-preview-cidrs-amber{color:#8A6314}
.rs-hero-preview-arrow{display:block;text-align:center;color:var(--border);font-size:13px;line-height:1;margin:6px 0}

/* input panel: compact field head + shorter textarea + cleaner surface */
.rs-field-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:6px}
.rs-field-head label{margin-bottom:0}
.rs-field-badge{flex:none;font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}
#rs-route-input{min-height:200px}
.route-summary-page .vlsm-tool-section-tint{background:#F9FBFD}

@media(max-width:960px){
	.rs-hero-grid{grid-template-columns:1fr;gap:26px}
	.rs-hero-preview{max-width:440px}
	.rs-hero-benefit{max-width:none}
}
@media(max-width:620px){
	.rs-hero-preview{max-width:none;padding:16px}
	#rs-route-input{min-height:176px}
}
@media(prefers-reduced-motion:reduce){
	.rs-hero-preview{transition:none!important}
}