/* InboxProof — Midnight & Signal theme. Deep midnight navy + signal-green "delivered" accent.
   Mobile-first, text-only (CSS/SVG), no sticky headers, nothing scrolls programmatically. */

:root {
  --ink: #0a1428;          /* deep midnight navy */
  --ink-soft: #122340;
  --ink-panel: #0f1e38;
  --paper: #f5f8fc;        /* cool off-white */
  --card: #ffffff;
  --line: #d9e3ef;
  --text: #182635;
  --muted: #5a6d84;
  --signal: #22c064;       /* signal green accent */
  --signal-bright: #3ddc7d;
  --signal-dark: #12753c;  /* green dark enough for text/buttons on light */
  --signal-btn: #158543;
  --signal-btn-hover: #0f7038;
  --warn: #b45309;
  --warn-bg: #fdf3e3;
  --red: #b3372f;
  --red-bg: #fbe9e7;
  --ok-bg: #e2f6ea;
  --radius: 12px;
  --maxw: 780px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--paper);
  line-height: 1.65;
  font-size: 17px;
}

/* ---- header (static — never sticky) ---- */
.site-header { background: var(--ink); color: #fff; padding: 18px 20px; }
.site-header .wrap { max-width: var(--maxw); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.brand { font-weight: 800; font-size: 21px; letter-spacing: -0.3px; text-decoration: none; color: #fff; display: inline-flex; align-items: center; gap: 9px; }
.brand span { color: var(--signal-bright); }
.brand .brand-mark { width: 26px; height: 26px; flex: none; }
.site-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-nav a { color: #c9d9ee; text-decoration: none; font-size: 15px; }
.site-nav a:hover { color: #fff; text-decoration: underline; }

/* ---- layout ---- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
section.block { padding: 44px 0; }

/* ---- hero ---- */
.hero { background: var(--ink); color: #fff; padding: 56px 0 64px; }
.hero h1 { font-family: var(--font-serif); font-weight: 700; font-size: clamp(30px, 6.5vw, 47px); line-height: 1.16; letter-spacing: -0.5px; margin: 0 0 14px; }
.hero h1 em { font-style: normal; color: var(--signal-bright); }
.hero .lede { font-size: 19px; color: #c3d5ec; max-width: 35em; margin: 0 0 26px; }
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.micro { font-size: 14px; color: var(--muted); }
.hero .micro { color: #93a9c6; }

/* ---- buttons ---- */
.btn {
  display: inline-block; background: var(--signal-btn); color: #fff; font-weight: 700;
  font-size: 17px; padding: 14px 26px; border-radius: 10px; text-decoration: none;
  border: none; cursor: pointer; line-height: 1.3; font-family: var(--font-sans);
}
.btn:hover { background: var(--signal-btn-hover); }
.btn-ghost {
  display: inline-block; background: transparent; color: #fff; border: 1.5px solid #7188a6;
  font-weight: 600; font-size: 16px; padding: 12px 22px; border-radius: 10px; text-decoration: none;
}
.btn-ghost:hover { border-color: #fff; color: #fff; }
.btn-dark {
  display: inline-block; background: var(--ink); color: #fff; font-weight: 700; font-size: 16px;
  padding: 13px 24px; border-radius: 10px; text-decoration: none; border: none; cursor: pointer;
  font-family: var(--font-sans);
}
.btn-dark:hover { background: var(--ink-soft); }

/* ---- cards ---- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin: 0 0 18px; }
.card h3 { margin: 0 0 8px; font-size: 20px; letter-spacing: -0.2px; }
.card p { margin: 8px 0; }

.step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px; }
.step .num { display: inline-block; width: 34px; height: 34px; border-radius: 50%; background: var(--ink); color: #fff; font-weight: 800; text-align: center; line-height: 34px; margin-bottom: 10px; }
.step h3 { margin: 0 0 6px; font-size: 18px; }
.step p { margin: 0; font-size: 15.5px; color: var(--muted); }

/* ---- guide cards: responsive grid 3 / 2 / 1 (never a squeezed flex row) ---- */
.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.guide-card {
  display: flex; flex-direction: column; gap: 6px; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 20px;
  text-decoration: none; color: var(--text);
}
.guide-card:hover { border-color: var(--signal); }
.guide-card .g-tag { font-size: 12.5px; font-weight: 800; letter-spacing: 0.8px; text-transform: uppercase; color: var(--signal-dark); }
.guide-card h3 { margin: 0; font-size: 17.5px; line-height: 1.35; }
.guide-card p { margin: 0; font-size: 14.5px; color: var(--muted); }

/* ---- wizard shell ---- */
.wiz-shell { background: var(--ink); border-radius: 16px; padding: 28px 24px; color: #fff; margin: 18px 0 0; }
.wiz-shell h2 { color: #fff; margin-top: 0; }
.wiz-shell .kicker { color: var(--signal-bright); }
.wiz-progress { font-size: 14px; color: #9fc0e8; letter-spacing: 0.4px; text-transform: uppercase; margin-bottom: 8px; }
.wiz-q { font-size: 21px; font-weight: 700; margin: 0 0 6px; line-height: 1.35; }
.wiz-hint { font-size: 15px; color: #a9bcd4; margin: 0 0 18px; }
.wiz-opts { display: grid; gap: 10px; }
.wiz-opt {
  display: block; width: 100%; text-align: left; background: #12263d; color: #eaf2fb;
  border: 1.5px solid #2c4560; border-radius: 10px; padding: 14px 16px; font-size: 16px;
  cursor: pointer; font-family: var(--font-sans);
}
button.wiz-opt:hover { border-color: var(--signal); background: #17304b; }
.wiz-opt .opt-sub { display: block; font-size: 14px; color: #93a9c6; margin-top: 2px; }
.wiz-check { display: flex; gap: 12px; align-items: flex-start; cursor: pointer; }
.wiz-check input { width: 20px; height: 20px; margin-top: 3px; accent-color: var(--signal); flex: none; cursor: pointer; }
.wiz-check .opt-body { flex: 1; }
.wiz-check.selected { border-color: var(--signal); background: #17304b; }
.wiz-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 18px; align-items: center; }
.wiz-back { background: none; border: none; color: #8fa6bf; font-size: 14.5px; cursor: pointer; padding: 4px 0; font-family: var(--font-sans); }
.wiz-back:hover { color: #fff; text-decoration: underline; }
.wiz-field { margin-bottom: 14px; }
.wiz-field label { display: block; font-weight: 600; font-size: 15px; margin-bottom: 6px; color: #d7e3f2; }
.wiz-field input[type="text"] {
  width: 100%; padding: 12px 14px; border-radius: 8px; border: 1.5px solid #2c4560;
  background: #12263d; color: #fff; font-size: 17px; font-family: var(--font-sans);
}
.wiz-error { color: #ffb4a8; font-size: 15px; margin: 10px 0 0; display: none; }
.wiz-error.show { display: block; }

/* ---- wizard results (render in place, inside the shell's result card) ---- */
.result-card { background: var(--card); color: var(--text); border-radius: var(--radius); padding: 26px 24px; margin-top: 6px; }
.result-card h3 { font-size: 24px; margin: 0 0 6px; letter-spacing: -0.3px; }
.result-card h4 { font-size: 17px; margin: 24px 0 8px; }
.result-card p { margin: 8px 0; }
.result-card ul, .result-card ol { margin: 6px 0 10px; padding-left: 20px; }
.result-card li { margin-bottom: 6px; }
.status-band { display: inline-block; font-weight: 800; font-size: 14px; letter-spacing: 0.6px; text-transform: uppercase; padding: 7px 14px; border-radius: 999px; margin-bottom: 12px; }
.band-ok { background: var(--ok-bg); color: var(--signal-dark); }
.band-warn { background: var(--warn-bg); color: var(--warn); }
.band-over { background: var(--red-bg); color: var(--red); }

.record-block { background: #0d1b31; border-radius: 10px; padding: 16px; margin: 12px 0; }
.record-block .rec-label { font-size: 13px; font-weight: 700; letter-spacing: 0.6px; text-transform: uppercase; color: #9fc0e8; margin: 0 0 8px; }
.record-block code {
  display: block; font-family: var(--font-mono); font-size: 14.5px; line-height: 1.6;
  color: #d9f7e4; word-break: break-all; white-space: pre-wrap;
}
.copy-btn {
  margin-top: 10px; background: #1d3a5f; color: #eaf2fb; border: 1px solid #35557e;
  border-radius: 8px; padding: 8px 14px; font-size: 14px; font-weight: 600; cursor: pointer; font-family: var(--font-sans);
}
.copy-btn:hover { border-color: var(--signal); }

.meter { margin: 14px 0 4px; }
.meter .meter-track { background: #e4ebf4; border-radius: 999px; height: 14px; overflow: hidden; }
.meter .meter-fill { height: 100%; background: var(--signal); border-radius: 999px; }
.meter .meter-fill.warn { background: #e8930c; }
.meter .meter-fill.over { background: var(--red); }
.meter .meter-label { font-size: 14.5px; font-weight: 700; margin-top: 6px; }

table.rec-table { width: 100%; border-collapse: collapse; font-size: 14.5px; margin: 10px 0; }
table.rec-table th, table.rec-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.rec-table th { font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--muted); }
table.rec-table td code { font-family: var(--font-mono); font-size: 13.5px; word-break: break-all; }
.rec-scroll { overflow-x: auto; }

.stage-grid { display: grid; gap: 12px; margin: 12px 0; }
.stage-card { border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; background: #fbfcfe; }
.stage-card h5 { margin: 0 0 4px; font-size: 16px; }
.stage-card .stage-when { font-size: 14px; color: var(--muted); margin: 0 0 8px; }
.stage-card code { display: block; font-family: var(--font-mono); font-size: 13.5px; background: #0d1b31; color: #d9f7e4; border-radius: 8px; padding: 10px 12px; word-break: break-all; white-space: pre-wrap; }

.note-box { background: #eef4fd; border: 1px solid #cdddf5; border-radius: 10px; padding: 14px 16px; margin: 16px 0 0; font-size: 15px; }
.warn-box { background: var(--warn-bg); border: 1.5px solid #ecd9a8; border-radius: 10px; padding: 14px 16px; margin: 16px 0 0; font-size: 15px; }
.check-list { list-style: none; padding: 0; margin: 10px 0; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 9px; font-size: 15.5px; }
.check-list input { width: 19px; height: 19px; margin-top: 3px; accent-color: var(--signal); flex: none; }
.result-cta { background: var(--ink); color: #fff; border-radius: 12px; padding: 22px; margin-top: 22px; }
.result-cta h4 { color: #fff; margin: 0 0 6px; }
.result-cta p { color: #c3d5ec; margin: 0 0 14px; font-size: 15.5px; }

/* ---- kit lock panels ---- */
.panel-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.lock-panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px; display: flex; flex-direction: column; gap: 8px; }
.lock-tag { align-self: flex-start; background: var(--ink); color: var(--signal-bright); font-size: 13px; font-weight: 700; letter-spacing: 0.3px; padding: 5px 12px; border-radius: 999px; }
.lock-panel h3 { margin: 0; font-size: 18.5px; }
.lock-panel p { margin: 0; font-size: 15px; color: var(--muted); }

/* ---- buy section ---- */
.buy-box { background: var(--ink); color: #fff; border-radius: 16px; padding: 36px 30px; text-align: center; }
.buy-box h2 { color: #fff; margin: 0 0 8px; font-family: var(--font-serif); font-size: 30px; }
.buy-box .price { font-size: 54px; font-weight: 800; margin: 10px 0 4px; letter-spacing: -1px; }
.buy-box .price small { font-size: 18px; font-weight: 600; color: #a9bcd4; }
.buy-box p { color: #c3d5ec; max-width: 34em; margin: 10px auto; }
.buy-box .micro { color: #8fa6bf; }
.buy-box .kicker { color: var(--signal-bright); }

/* ---- FAQ ---- */
.faq-item { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 12px; }
.faq-item summary { padding: 18px 20px; font-weight: 700; font-size: 17px; cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: "+ "; color: var(--signal-dark); font-weight: 800; }
.faq-item[open] summary::before { content: "\2013  "; }
.faq-item .faq-body { padding: 0 20px 20px; font-size: 16px; }
.faq-item .faq-body p { margin: 8px 0; }

/* ---- kit page specifics ---- */
.kit-hero { background: var(--ink); color: #fff; padding: 44px 0; }
.kit-hero h1 { font-family: var(--font-serif); font-size: clamp(26px, 5.5vw, 38px); margin: 0 0 10px; }
.kit-hero p { color: #c3d5ec; margin: 0; max-width: 36em; }
.kit-hero .kicker { color: var(--signal-bright); }
.toc { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.toc ol { margin: 8px 0 0; padding-left: 22px; }
.toc li { margin-bottom: 6px; }
.toc a { color: var(--text); font-weight: 600; text-decoration: none; }
.toc a:hover { color: var(--signal-dark); text-decoration: underline; }
.guide-block { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; margin: 0 0 20px; }
.guide-block h3 { margin: 0 0 4px; font-size: 22px; letter-spacing: -0.2px; }
.guide-block .verdict-line { font-weight: 700; font-size: 16px; margin: 10px 0; }
.guide-block ol, .guide-block ul { margin: 8px 0; padding-left: 22px; }
.guide-block li { margin-bottom: 7px; }
.guide-block code, .prose code { font-family: var(--font-mono); font-size: 0.92em; background: #edf2f8; border-radius: 5px; padding: 1px 6px; word-break: break-all; }
.code-line { display: block; font-family: var(--font-mono); font-size: 14px; background: #0d1b31; color: #d9f7e4; border-radius: 8px; padding: 12px 14px; margin: 10px 0; word-break: break-all; white-space: pre-wrap; }
.stop-box { background: var(--red-bg); border: 1.5px solid #e8b3ae; border-radius: 10px; padding: 16px 18px; margin: 14px 0 0; font-size: 15.5px; }
.stop-box strong { color: var(--red); }
.tip-box { background: var(--ok-bg); border: 1px solid #b5e3c6; border-radius: 10px; padding: 14px 16px; margin: 14px 0 0; font-size: 15.5px; }
.worksheet-table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 10px 0; }
.worksheet-table th, .worksheet-table td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.worksheet-table th { background: #f0f5fa; }
@media print {
  .site-header, .site-footer, .no-print { display: none !important; }
  body { background: #fff; font-size: 13px; }
  .guide-block, .card { border-color: #bbb; break-inside: avoid; }
}

/* ---- article prose ---- */
.prose { max-width: 720px; }
.prose h1 { font-size: clamp(27px, 5vw, 36px); line-height: 1.25; letter-spacing: -0.02em; margin: 0 0 10px; font-family: var(--font-serif); }
.prose h2 { font-size: 23px; margin: 36px 0 12px; letter-spacing: -0.01em; }
.prose h3 { font-size: 18.5px; margin: 26px 0 8px; }
.prose p { margin: 0 0 16px; }
.prose ul, .prose ol { margin: 0 0 16px; padding-left: 22px; }
.prose li { margin-bottom: 8px; }
.prose a { color: var(--signal-dark); }
.prose .meta { color: var(--muted); font-size: 14px; margin-bottom: 22px; }
.callout { background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--signal); border-radius: 8px; padding: 16px 18px; margin: 24px 0; }
.callout.warning { border-left-color: #e8930c; }
.callout h3 { margin: 0 0 6px; font-size: 17px; }
.callout p { margin: 0; }
.cta-band { background: var(--ink); color: #fff; border-radius: 12px; padding: 30px 26px; margin: 40px 0; text-align: center; }
.cta-band h2 { color: #fff; margin: 0 0 10px; font-size: 24px; }
.cta-band p { color: #c3d5ec; margin: 0 0 6px; }
.breadcrumb { font-size: 14px; color: var(--muted); margin: 18px 0 0; }
.breadcrumb a { color: var(--muted); text-decoration: none; }

/* ---- footer ---- */
.site-footer { background: var(--ink); color: #93a9c6; padding: 34px 0; font-size: 15px; }
.site-footer a { color: #d7e3f2; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer .foot-links { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 12px; }
.site-footer p { margin: 6px 0; max-width: 62em; }

/* ---- typography helpers ---- */
h2.sec { font-family: var(--font-serif); font-size: clamp(24px, 4.5vw, 33px); letter-spacing: -0.4px; margin: 0 0 10px; }
.sec-sub { color: var(--muted); max-width: 36em; margin: 0 0 24px; font-size: 17px; }
.kicker { font-size: 14px; font-weight: 800; letter-spacing: 1.2px; text-transform: uppercase; color: var(--signal-dark); margin: 0 0 8px; }
.wiz-shell .kicker, .kit-hero .kicker { color: var(--signal-bright); }

/* ---- responsive ---- */
@media (max-width: 860px) {
  .guide-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .step-grid, .panel-grid, .guide-grid { grid-template-columns: 1fr; }
  section.block { padding: 34px 0; }
  .hero { padding: 42px 0 48px; }
  .wiz-shell { padding: 22px 16px; }
  .result-card { padding: 22px 18px; }
  .buy-box { padding: 30px 20px; }
  .btn { width: 100%; text-align: center; }
  .hero .cta-row { flex-direction: column; align-items: stretch; }
  .hero .btn-ghost { text-align: center; }
  .guide-block { padding: 22px 18px; }
}