/* Chargeback portal — shared styles.
   Palette borrows Truova's emerald accent for visual coherence with the
   broader stack but the portal brand stays independent (no Truova marks). */

:root {
  --green-50:  #ecfdf5;
  --green-100: #d1fae5;
  --green-200: #a7f3d0;
  --green-400: #34d399;
  --green-500: #10b981;
  --green-600: #059669;
  --green-700: #047857;
  --green-800: #065f46;
  --green-900: #064e3b;

  --ink-900: #0b1810;
  --ink-700: #15291d;
  --ink-600: #2d4738;
  --ink-500: #4a6557;
  --ink-400: #6b8576;
  --ink-300: #9bb1a4;
  --ink-200: #c9d5cc;
  --ink-100: #e5ede8;
  --ink-50:  #f4f8f5;
  --white:   #ffffff;
  --warn:    #b45309;
  --warn-bg: #fef3c7;
  --danger:  #b91c1c;
  --danger-bg: #fee2e2;

  --maxw: 760px;
  --maxw-wide: 1100px;
  --radius: 10px;
  --radius-lg: 16px;

  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Source Serif Pro', Georgia, 'Times New Roman', serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, monospace;

  --shadow-sm: 0 1px 2px rgba(11, 24, 16, 0.05);
  --shadow:    0 4px 12px rgba(11, 24, 16, 0.08);
  --shadow-lg: 0 12px 32px rgba(11, 24, 16, 0.12);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--ink-50);
  color: var(--ink-700);
  font: 16px/1.65 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--green-700); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--green-900); text-decoration: underline; }

/* ── Top bar ─────────────────────────────────────────── */
.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--ink-100);
  position: sticky; top: 0; z-index: 50;
}
.topbar-inner {
  max-width: var(--maxw-wide);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 15px;
  color: var(--ink-900);
  letter-spacing: -.01em;
}
.brand .logo {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  background: var(--green-600);
  color: var(--white);
  border-radius: 8px;
  font-weight: 800; font-size: 16px;
  box-shadow: inset 0 -2px 0 rgba(0,0,0,.15);
}
.brand small {
  display: block;
  color: var(--ink-400);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.topbar nav {
  display: flex; gap: 22px; font-size: 14px;
}
.topbar nav a { color: var(--ink-600); font-weight: 500; }
.topbar nav a:hover { color: var(--green-700); text-decoration: none; }
.topbar .cta-top {
  background: var(--green-600); color: var(--white);
  padding: 8px 14px; border-radius: 8px;
  font-weight: 600; font-size: 13px;
  transition: background .15s ease;
}
.topbar .cta-top:hover { background: var(--green-700); color: var(--white); text-decoration: none; }

.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.menu-toggle svg { width: 24px; height: 24px; }

@media (max-width: 820px) {
  .topbar nav { display: none; }
  .menu-toggle { display: block; }
  .topbar nav.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--white);
    padding: 16px 24px;
    border-bottom: 1px solid var(--ink-100);
    box-shadow: var(--shadow);
    gap: 14px;
  }
}

/* ── Hero ─────────────────────────────────────────── */
.hero {
  background: linear-gradient(160deg, var(--green-50) 0%, var(--white) 70%);
  padding: 56px 24px 40px;
  text-align: center;
  border-bottom: 1px solid var(--ink-100);
}
.hero-inner { max-width: var(--maxw); margin: 0 auto; }
.hero .eyebrow {
  display: inline-block;
  background: var(--green-100);
  color: var(--green-800);
  padding: 5px 12px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .03em;
  margin-bottom: 18px;
}
.hero h1 {
  font: 700 clamp(28px, 5vw, 42px)/1.2 var(--font-sans);
  color: var(--ink-900);
  letter-spacing: -.015em;
  margin-bottom: 18px;
}
.hero p.lede {
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--ink-500);
  max-width: 640px; margin: 0 auto;
}
.hero .cta-row {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  margin-top: 28px;
}
@media (max-width: 640px){
  .hero { padding: 40px 20px 28px; }
}

/* ── Article ─────────────────────────────────────── */
.article-header {
  background: var(--white);
  border-bottom: 1px solid var(--ink-100);
  padding: 40px 24px 32px;
}
.article-header-inner { max-width: var(--maxw); margin: 0 auto; }
.article-header .crumb {
  font-size: 13px; color: var(--ink-400);
  margin-bottom: 14px;
}
.article-header .crumb a { color: var(--ink-500); }
.article-header h1 {
  font: 700 clamp(26px, 4.2vw, 36px)/1.25 var(--font-sans);
  color: var(--ink-900);
  letter-spacing: -.01em;
  margin-bottom: 14px;
}
.article-header .deck {
  font-size: clamp(15px, 1.5vw, 17px);
  color: var(--ink-500);
  max-width: 640px;
}

article.content {
  background: var(--white);
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 36px 24px 56px;
  border-bottom: 1px solid var(--ink-100);
}
article.content h2 {
  font: 700 clamp(20px, 2.4vw, 26px)/1.3 var(--font-sans);
  color: var(--ink-900);
  letter-spacing: -.01em;
  margin: 40px 0 16px;
}
article.content h2:first-child { margin-top: 0; }
article.content h3 {
  font: 600 clamp(17px, 2vw, 19px)/1.3 var(--font-sans);
  color: var(--ink-800);
  margin: 26px 0 10px;
}
article.content p {
  margin-bottom: 18px;
  color: var(--ink-600);
}
article.content ul, article.content ol {
  margin: 0 0 22px 24px;
  color: var(--ink-600);
}
article.content li { margin-bottom: 6px; }
article.content li > strong { color: var(--ink-900); }
article.content strong { color: var(--ink-900); }
article.content blockquote {
  border-left: 4px solid var(--green-500);
  padding: 4px 0 4px 18px;
  margin: 22px 0;
  color: var(--ink-600);
  font-style: italic;
}
article.content code {
  font: 13px/1.5 var(--font-mono);
  background: var(--ink-50);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--ink-700);
}

/* Callouts */
.callout {
  border-radius: var(--radius);
  padding: 18px 22px;
  margin: 26px 0;
  font-size: 15px;
  background: var(--ink-50);
  border-left: 4px solid var(--green-500);
}
.callout.warn { background: var(--warn-bg); border-color: var(--warn); }
.callout.danger { background: var(--danger-bg); border-color: var(--danger); }
.callout strong { color: var(--ink-900); }
.callout p { margin: 0; }
.callout p + p { margin-top: 8px; }

/* Tables */
article.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 22px 0;
  font-size: 14px;
}
article.content thead th {
  background: var(--ink-50);
  text-align: left;
  padding: 10px 14px;
  font-weight: 700;
  color: var(--ink-900);
  border-bottom: 2px solid var(--ink-200);
}
article.content tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--ink-100);
  color: var(--ink-600);
}
article.content tbody tr:last-child td { border-bottom: none; }

/* Inline CTA card */
.cta-card {
  background: linear-gradient(135deg, var(--green-50), var(--green-100));
  border: 1px solid var(--green-200);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin: 32px 0;
  text-align: center;
}
.cta-card h3 {
  font: 700 22px/1.3 var(--font-sans);
  color: var(--green-900);
  margin-bottom: 8px;
}
.cta-card p {
  color: var(--green-800);
  margin-bottom: 18px;
}

/* TOC */
.toc {
  background: var(--ink-50);
  border-left: 3px solid var(--green-500);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin: 0 0 32px;
  font-size: 14px;
}
.toc h4 {
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--ink-500);
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 10px;
}
.toc ol {
  margin: 0; padding-left: 18px;
}
.toc li { margin-bottom: 4px; }
.toc a { color: var(--ink-700); }

/* Related links section */
.related {
  background: var(--ink-50);
  padding: 40px 24px;
  border-bottom: 1px solid var(--ink-100);
}
.related-inner { max-width: var(--maxw); margin: 0 auto; }
.related h2 {
  font: 700 22px/1.3 var(--font-sans);
  color: var(--ink-900);
  margin-bottom: 18px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.related-card {
  display: block;
  background: var(--white);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: border-color .15s ease, transform .12s ease, box-shadow .15s ease;
}
.related-card:hover {
  border-color: var(--green-500);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  text-decoration: none;
}
.related-card .label {
  font-size: 11px; font-weight: 700;
  color: var(--green-700);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.related-card .title {
  font-weight: 700; font-size: 16px;
  color: var(--ink-900);
  margin: 6px 0;
}
.related-card .desc {
  color: var(--ink-500); font-size: 14px;
}

/* ── Contact form ──────────────────────────────────── */
.contact {
  background: var(--white);
  padding: 48px 24px 64px;
  border-top: 4px solid var(--green-500);
}
.contact-inner { max-width: var(--maxw); margin: 0 auto; }
.contact h2 {
  font: 700 clamp(22px, 3vw, 28px)/1.3 var(--font-sans);
  color: var(--ink-900);
  margin-bottom: 8px;
  text-align: center;
}
.contact > .contact-inner > p {
  text-align: center;
  color: var(--ink-500);
  margin-bottom: 26px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}
@media (max-width: 640px){ .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-size: 13px; font-weight: 600;
  color: var(--ink-700);
}
.field input, .field textarea {
  font: 15px/1.5 var(--font-sans);
  padding: 10px 14px;
  border: 1px solid var(--ink-200);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink-900);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, .18);
}
.field textarea { min-height: 120px; resize: vertical; }
.honeypot { position: absolute; left: -9999px; }

.btn {
  display: inline-block;
  background: var(--green-600);
  color: var(--white);
  padding: 12px 22px;
  border: none;
  border-radius: 8px;
  font: 600 15px/1 var(--font-sans);
  cursor: pointer;
  transition: background .15s ease, transform .1s ease;
}
.btn:hover { background: var(--green-700); color: var(--white); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn.ghost {
  background: var(--white);
  color: var(--green-700);
  border: 1px solid var(--green-500);
}
.btn.ghost:hover { background: var(--green-50); }
.btn.large { padding: 14px 28px; font-size: 16px; }

.form-actions {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-top: 8px;
}
.form-actions .note {
  font-size: 12px; color: var(--ink-400);
  flex: 1;
}
.form-msg {
  display: none;
  padding: 12px 16px; border-radius: 8px;
  margin-top: 14px; font-size: 14px;
}
.form-msg.ok { display: block; background: var(--green-50); color: var(--green-800); border: 1px solid var(--green-200); }
.form-msg.err { display: block; background: var(--danger-bg); color: var(--danger); border: 1px solid #fecaca; }

/* ── Footer ───────────────────────────────────────── */
footer.site {
  background: var(--ink-900);
  color: var(--ink-200);
  padding: 40px 24px 28px;
  font-size: 14px;
}
footer.site .inner {
  max-width: var(--maxw-wide); margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 32px;
}
@media (max-width: 960px){ footer.site .inner { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px){ footer.site .inner { grid-template-columns: 1fr; } }
footer.site h4 {
  color: var(--white);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 12px;
}
footer.site a {
  color: var(--ink-200);
  display: block;
  padding: 3px 0;
}
footer.site a:hover { color: var(--green-400); text-decoration: none; }
footer.site .legal {
  max-width: var(--maxw-wide); margin: 28px auto 0;
  padding-top: 18px;
  border-top: 1px solid var(--ink-700);
  font-size: 12px; color: var(--ink-300);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}