/* FridgeVerdict — Midnight Steel theme. Mobile-first, text-only, no sticky headers. */

:root {
  --ink: #0c1a2b;          /* deep midnight navy */
  --ink-soft: #16283d;
  --paper: #faf8f4;        /* warm off-white */
  --card: #ffffff;
  --line: #e3ddd2;
  --text: #1c2733;
  --muted: #5b6b7c;
  --ice: #9cc8f5;          /* ice blue accent */
  --amber: #e8930c;        /* warm amber CTA */
  --amber-dark: #c97406;
  --green: #1e7e46;
  --teal: #0e7c7b;
  --red: #b3372f;
  --radius: 12px;
  --maxw: 760px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}

* { 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; }
.brand span { color: var(--ice); }
.site-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-nav a { color: #d7e3f2; 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, 48px);
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin: 0 0 14px;
}
.hero h1 em { font-style: normal; color: var(--ice); }
.hero .lede { font-size: 19px; color: #c9d8ea; max-width: 34em; 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: #9fb3c9; }

/* ---- buttons ---- */
.btn {
  display: inline-block;
  background: var(--amber);
  color: #1c1405;
  font-weight: 700;
  font-size: 17px;
  padding: 14px 26px;
  border-radius: 10px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  line-height: 1.3;
}
.btn:hover { background: var(--amber-dark); color: #fff; }
.btn-ghost {
  display: inline-block;
  background: transparent;
  color: #fff;
  border: 1.5px solid #7d94ae;
  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;
}
.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); }

/* ---- diagnostic ---- */
.diag-shell {
  background: var(--ink);
  border-radius: 16px;
  padding: 28px 24px;
  color: #fff;
  margin: 18px 0 0;
}
.diag-shell h2 { color: #fff; margin-top: 0; }
.diag-progress { font-size: 14px; color: var(--ice); letter-spacing: 0.4px; text-transform: uppercase; margin-bottom: 8px; }
.diag-q { font-size: 21px; font-weight: 700; margin: 0 0 6px; line-height: 1.35; }
.diag-hint { font-size: 15px; color: #a9bcd4; margin: 0 0 18px; }
.diag-opts { display: grid; gap: 10px; }
.diag-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);
}
.diag-opt:hover { border-color: var(--ice); background: #17304b; }
.diag-back {
  background: none; border: none; color: #8fa6bf; font-size: 14.5px; cursor: pointer;
  margin-top: 16px; padding: 4px 0; font-family: var(--font-sans);
}
.diag-back:hover { color: #fff; text-decoration: underline; }

.verdict {
  background: var(--card); color: var(--text);
  border-radius: var(--radius); padding: 26px 24px; margin-top: 6px;
}
.verdict-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-zero   { background: #e3f4e8; color: var(--green); }
.band-diy    { background: #e0f3f2; color: var(--teal); }
.band-tech   { background: #fdf0da; color: #9a5c02; }
.band-cert   { background: #fbe7e5; color: var(--red); }
.verdict h3 { font-size: 24px; margin: 0 0 6px; letter-spacing: -0.3px; }
.verdict h4 { font-size: 16.5px; margin: 20px 0 6px; }
.verdict ul { margin: 6px 0 10px; padding-left: 20px; }
.verdict li { margin-bottom: 6px; }
.verdict p { margin: 8px 0; }

.fda-box {
  background: #fff8ea; border: 1.5px solid #ecd9a8; border-radius: 10px;
  padding: 18px; margin: 22px 0 0; font-size: 15px; color: var(--text);
}
.fda-box .fda-head { font-weight: 800; font-size: 15px; margin-bottom: 8px; color: #7c5a00; }
.fda-box blockquote { margin: 0 0 8px; padding-left: 14px; border-left: 3px solid var(--amber); font-style: italic; }
.fda-box a { color: var(--amber-dark); }

.safety-strip {
  background: #f4f6f8; border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 16px; margin: 16px 0 0; font-size: 15px;
}
.safety-strip strong { display: block; margin-bottom: 4px; }
.brand-note { background: #eef4fd; border: 1px solid #cdddf5; border-radius: 10px; padding: 14px 16px; margin: 16px 0 0; font-size: 15px; }

.diag-restart { margin-top: 20px; }

/* ---- 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(--ice);
  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: #c9d8ea; max-width: 34em; margin: 10px auto; }
.buy-box .micro { color: #8fa6bf; }

/* ---- 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(--amber-dark); font-weight: 800; }
.faq-item[open] summary::before { content: "– "; }
.faq-item .faq-body { padding: 0 20px 20px; font-size: 16px; color: var(--text); }
.faq-item .faq-body p { margin: 8px 0; }

/* ---- articles nav ---- */
.article-list { display: grid; gap: 10px; }
.article-list a {
  display: block; background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 18px; text-decoration: none; color: var(--text); font-weight: 600;
}
.article-list a:hover { border-color: var(--amber); }

/* ---- 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: #c9d8ea; margin: 0; max-width: 36em; }
.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(--amber-dark); text-decoration: underline; }
.cause { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; margin: 0 0 20px; }
.cause h3 { margin: 0 0 4px; font-size: 22px; letter-spacing: -0.2px; }
.cause .verdict-line { font-weight: 700; font-size: 16px; margin: 10px 0; }
.cause ol, .cause ul { margin: 8px 0; padding-left: 22px; }
.cause li { margin-bottom: 7px; }
.stop-box {
  background: #fbe7e5; 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); }
.calc-box { background: var(--ink); color: #fff; border-radius: 16px; padding: 30px 26px; }
.calc-box h2, .calc-box h3 { color: #fff; margin-top: 0; }
.calc-field { margin-bottom: 14px; }
.calc-field label { display: block; font-weight: 600; font-size: 15px; margin-bottom: 6px; color: #d7e3f2; }
.calc-field input {
  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);
}
.calc-result {
  background: var(--card); color: var(--text); border-radius: 10px; padding: 20px;
  margin-top: 18px; display: none;
}
.calc-result.show { display: block; }
.calc-result h3 { margin: 0 0 8px; }

/* ---- footer ---- */
.site-footer { background: var(--ink); color: #9fb3c9; 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: 60em; }

/* ---- 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(--amber-dark); margin: 0 0 8px; }
.diag-shell .kicker, .buy-box .kicker, .kit-hero .kicker { color: var(--ice); }

/* ---- responsive: everything stacks under 560px ---- */
@media (max-width: 560px) {
  body { font-size: 16px; }
  .step-grid, .panel-grid { grid-template-columns: 1fr; }
  section.block { padding: 34px 0; }
  .hero { padding: 42px 0 48px; }
  .diag-shell { padding: 22px 16px; }
  .verdict { 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; }
  .calc-box { padding: 24px 18px; }
  .cause { padding: 22px 18px; }
}