/* IBF Tax Tools — restrained professional styling. No gradients-as-decoration,
   no stock flourishes. Ink navy + brass on warm paper. */

:root {
  --ink: #16242f;
  --ink-soft: #33454f;
  --muted: #5f6f79;
  --paper: #faf8f3;
  --card: #ffffff;
  --line: #e3dac9;
  --accent: #a5762a;
  --accent-deep: #7d5a1d;
  --accent-soft: #f6eeda;
  --good: #1d7a4b;
  --good-soft: #e7f4ec;
  --warn: #96590a;
  --warn-soft: #faf0dc;
  --bad: #b3261e;
  --bad-soft: #fbecea;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(22, 36, 47, 0.06), 0 8px 28px rgba(22, 36, 47, 0.07);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1020px; margin: 0 auto; padding: 0 24px; }

/* ---------- top bar ---------- */
.topbar { background: var(--ink); color: #fff; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; padding-bottom: 14px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border: 2px solid var(--accent); border-radius: 8px;
  color: var(--accent); font-family: Georgia, "Times New Roman", serif; font-weight: bold; font-size: 18px;
  letter-spacing: 1px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.3; }
.brand-text strong { font-size: 15px; }
.brand-text small { color: #b9c4cc; font-size: 12px; letter-spacing: 2px; text-transform: uppercase; }
.contact-link { color: #fff; text-decoration: none; border: 1px solid #4a5d68; border-radius: 6px; padding: 8px 16px; font-size: 14px; }
.contact-link:hover { border-color: var(--accent); color: var(--accent); }

.topbar-right { display: flex; align-items: center; gap: 12px; }
.lang-toggle { display: inline-flex; border: 1px solid #4a5d68; border-radius: 8px; overflow: hidden; }
.lang-btn {
  background: transparent; color: #b9c4cc; border: none; cursor: pointer;
  font-size: 14px; font-weight: 600; padding: 8px 16px; font-family: inherit;
}
.lang-btn + .lang-btn { border-inline-start: 1px solid #4a5d68; }
.lang-btn.active { background: var(--accent); color: #fff; }
.lang-btn:hover:not(.active) { color: #fff; }

/* ---------- RTL adjustments ---------- */
[dir="rtl"] .hero { text-align: right; }
[dir="rtl"] .honesty { border-left: none; border-right: 3px solid var(--accent); border-radius: 8px 0 0 8px; }
[dir="rtl"] .brand-text small { letter-spacing: 0; }
[dir="rtl"] .result .detail-label { letter-spacing: 0; }

/* ---------- hero ---------- */
.hero { padding: 72px 0 56px; text-align: left; }
.hero h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.15; margin: 0 0 18px; max-width: 16em;
  font-weight: 600;
}
.hero .sub { font-size: 19px; color: var(--ink-soft); max-width: 40em; margin: 0 0 16px; }
.hero .intro { color: var(--muted); max-width: 44em; margin: 0 0 28px; }
.hero-nav { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; border: none; cursor: pointer; text-decoration: none;
  font-size: 16px; font-weight: 600; padding: 13px 28px; border-radius: 8px;
  transition: background 0.15s ease, transform 0.05s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-deep); }
.btn-primary:disabled { background: #c9c2b4; cursor: not-allowed; }
.btn-secondary { background: transparent; color: var(--ink); border: 1.5px solid var(--ink); }
.btn-secondary:hover { background: var(--ink); color: #fff; }
.btn-quiet { background: transparent; color: var(--ink-soft); border: 1.5px solid var(--line); }
.btn-quiet:hover { border-color: var(--ink-soft); }

/* ---------- mode cards ---------- */
.mode { padding: 8px 0 40px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 40px;
}
.card h2 { font-family: Georgia, "Times New Roman", serif; font-size: 30px; margin: 0 0 10px; font-weight: 600; }
.explainer { color: var(--ink-soft); max-width: 46em; margin: 0 0 28px; }

/* ---------- dropzone ---------- */
.dropzone {
  border: 2px dashed #b9ac93; border-radius: var(--radius); background: #fdfcfa;
  padding: 44px 24px; text-align: center; cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--accent); background: var(--accent-soft); outline: none; }
.dropzone.dragover { border-color: var(--accent); background: var(--accent-soft); }
.dropzone.has-file { border-style: solid; border-color: var(--good); }
.dz-icon { color: var(--accent); margin-bottom: 10px; }
.dz-label { font-size: 19px; font-weight: 600; margin: 0 0 4px; }
.dz-sub { color: var(--muted); margin: 0; font-size: 15px; }
.dz-filename { color: var(--good); font-weight: 600; margin: 8px 0 0; font-size: 14px; word-break: break-all; }

.actions { margin-top: 22px; text-align: center; }
.file-hint { color: var(--muted); font-size: 13px; margin: 10px 0 0; }
.privacy-line { color: var(--muted); font-size: 13px; margin: 4px 0 0; }

/* ---------- processing ---------- */
.processing { text-align: center; padding: 36px 12px; }
.spinner {
  width: 34px; height: 34px; margin: 0 auto 14px; border-radius: 50%;
  border: 3px solid var(--line); border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.processing .status-line { font-weight: 600; font-size: 17px; margin: 0 0 4px; }
.processing .subline { color: var(--muted); margin: 0; font-size: 14px; }

/* ---------- results ---------- */
.result { margin-top: 28px; border-top: 1px solid var(--line); padding-top: 28px; }
.result-headline { font-family: Georgia, "Times New Roman", serif; font-size: 24px; margin: 0 0 12px; font-weight: 600; }
.result-headline .ar-name { display: block; font-size: 17px; color: var(--muted); font-weight: 400; margin-top: 4px; }
.confidence { display: inline-block; background: var(--accent-soft); color: var(--accent-deep); font-weight: 700; border-radius: 20px; padding: 4px 14px; font-size: 14px; margin: 0 0 14px; }
.result p.body { margin: 0 0 10px; }
.result .detail-label { font-size: 12px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); margin: 18px 0 4px; }
.result .detail { margin: 0 0 6px; }
.meta-chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0; }
.chip { font-size: 12.5px; border: 1px solid var(--line); border-radius: 20px; padding: 3px 12px; color: var(--ink-soft); background: #fdfcfa; }
.honesty { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 12px 16px; border-radius: 0 8px 8px 0; font-size: 14.5px; margin: 18px 0; }
.result-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.secondary-link { display: inline-block; margin-top: 14px; color: var(--accent-deep); font-weight: 600; text-decoration: none; }
.secondary-link:hover { text-decoration: underline; }

/* pass / fail banners */
.banner { display: flex; gap: 14px; align-items: flex-start; border-radius: var(--radius); padding: 20px 22px; margin: 0 0 18px; }
.banner-pass { background: var(--good-soft); border: 1px solid #bfe0cd; }
.banner-fail { background: var(--warn-soft); border: 1px solid #ecd9ae; }
.banner-icon { flex: none; width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.banner-pass .banner-icon { background: var(--good); color: #fff; }
.banner-fail .banner-icon { background: var(--warn); color: #fff; }
.banner h3 { margin: 2px 0 6px; font-size: 20px; font-family: Georgia, serif; }
.banner p { margin: 0; font-size: 15px; }

.issue-list { list-style: none; margin: 14px 0 0; padding: 0; }
.issue-list li { border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; margin-bottom: 10px; background: #fff; }
.issue-list .issue-title { font-weight: 700; }
.issue-list .issue-fix { display: block; margin-top: 6px; color: var(--ink-soft); font-size: 14.5px; }
.reassurance { color: var(--muted); font-size: 14px; margin-top: 16px; }

/* candidate cards (uncertain state) */
.candidates { display: grid; gap: 10px; margin: 14px 0; }
.candidate { border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; background: #fff; }
.candidate strong { display: block; }
.candidate .ar { color: var(--muted); font-size: 14px; }
.candidate .conf { font-size: 13px; color: var(--accent-deep); font-weight: 700; }

/* ---------- trust strip ---------- */
.trust { padding: 40px 0; }
.trust h2 { font-family: Georgia, serif; font-size: 26px; margin: 0 0 18px; }
.trust-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.trust-list li { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 16px 20px; box-shadow: var(--shadow); }
.trust-list li strong { color: var(--ink); }

/* ---------- CTA ---------- */
.cta { padding: 16px 0 64px; }
.cta-card { text-align: center; background: var(--ink); color: #f2ede2; border: none; }
.cta-card h2 { color: #fff; }
.cta-card p { color: #c7d0d6; max-width: 40em; margin: 0 auto 22px; }
.cta-card .contact-line { margin: 18px 0 0; font-size: 14.5px; }
.cta-card .contact-line a { color: var(--accent); }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
.footer p { margin: 4px 0; }
.footer-note { font-size: 13px; }

.error-box { background: var(--bad-soft); border: 1px solid #f0c4c0; border-radius: 8px; padding: 16px 20px; }
.error-box p { margin: 0; }

@media (max-width: 640px) {
  .card { padding: 26px 20px; }
  .hero { padding: 48px 0 40px; }
}