/* ===== Tokens ===== */
:root {
  --bg: #0B2B22;
  --bg-alt: #0F3A2B;
  --surface: #16412F;
  --surface-raised: #1B4C37;
  --border: rgba(243, 241, 231, 0.12);
  --text: #F3F1E7;
  --text-muted: #A7C2B4;
  --accent: #F5B700;
  --accent-soft: #FDE38F;
  --accent-ink: #2A1F00;
  --good: #6FCF97;
  --warn: #F2994A;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --radius: 14px;
  --radius-sm: 8px;
  --maxw: 720px;
}

[data-theme="light"] {
  --bg: #FBF8F0;
  --bg-alt: #F3EEDF;
  --surface: #FFFFFF;
  --surface-raised: #FFFFFF;
  --border: rgba(20, 40, 30, 0.12);
  --text: #16281F;
  --text-muted: #52685C;
  --accent: #C98A00;
  --accent-soft: #F5DFA0;
  --accent-ink: #2A1F00;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s ease, color 0.3s ease;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Header ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}
.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
}
.theme-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 999px;
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  cursor: pointer;
  text-transform: uppercase;
}
.theme-toggle:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== Hero ===== */
.hero {
  padding: 40px 0 8px;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 2.5rem);
  line-height: 1.1;
  margin: 0 0 14px;
  font-weight: 600;
}
.hero p.lead {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 46ch;
  margin: 0 0 24px;
}

/* status card */
.status-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 28px;
}
.status-card .status-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.status-card .status-value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--accent);
}
.status-card .status-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 6px;
}
.status-source-link {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent);
  text-decoration: none;
  border-top: 1px dashed var(--border);
  padding-top: 12px;
  width: 100%;
}
.status-source-link:hover { text-decoration: underline; }

/* ===== Trilha (signature timeline) ===== */
.trilha {
  position: relative;
  padding: 6px 0 18px;
  margin-bottom: 8px;
  overflow-x: auto;
}
.trilha-track {
  position: relative;
  display: flex;
  min-width: 560px;
  padding: 30px 6px 8px;
}
.trilha-line {
  position: absolute;
  top: 38px;
  left: 20px;
  right: 20px;
  height: 2px;
  background: var(--border);
}
.trilha-line-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--accent);
}
.trilha-stop {
  position: relative;
  flex: 1;
  text-align: center;
}
.trilha-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--surface-raised);
  border: 2px solid var(--border);
  margin: 0 auto 8px;
  position: relative;
  z-index: 2;
}
.trilha-stop.done .trilha-dot { background: var(--accent); border-color: var(--accent); }
.trilha-stop.now .trilha-dot {
  background: var(--bg);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 30%, transparent);
}
.trilha-month {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
}
.trilha-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text);
  margin-top: 2px;
}
.trilha-stop.now .trilha-month, .trilha-stop.now .trilha-date { color: var(--accent); font-weight: 600; }

/* ===== Sections ===== */
section.block {
  padding: 36px 0;
  border-top: 1px solid var(--border);
}
h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin: 0 0 6px;
  font-weight: 600;
}
.section-sub {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 0 0 20px;
  max-width: 52ch;
}

/* ===== Calculator ===== */
.calc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
select, input[type="range"] {
  width: 100%;
}
select {
  background: var(--bg-alt);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 0.95rem;
}
input[type="range"] {
  -webkit-appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  accent-color: var(--accent);
}
.range-readout {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-top: 8px;
}
.calc-result {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.calc-result .value {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
}
.calc-result .caption {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ===== Table ===== */
.pis-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.pis-table th, .pis-table td {
  text-align: left;
  padding: 11px 10px;
  border-bottom: 1px solid var(--border);
}
.pis-table th {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 500;
}
.pis-table td.date { font-family: var(--font-mono); color: var(--accent); }
.pis-table tr.current-row { background: color-mix(in srgb, var(--accent) 10%, transparent); }
.pis-table tr.past-row td { color: var(--text-muted); }
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 999px;
  margin-left: 6px;
  vertical-align: middle;
}
.tag.paid { background: color-mix(in srgb, var(--good) 22%, transparent); color: var(--good); }
.tag.next { background: color-mix(in srgb, var(--accent) 25%, transparent); color: var(--accent); }

/* ===== Cards / lists ===== */
.info-grid {
  display: grid;
  gap: 14px;
}
.info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.info-card h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  margin: 0 0 6px;
}
.info-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0;
}
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}
.check-list li:last-child { border-bottom: none; }
.check-mark {
  color: var(--accent);
  font-family: var(--font-mono);
  flex-shrink: 0;
}

/* ===== FAQ ===== */
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item summary {
  padding: 16px 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.1rem;
}
.faq-item[open] summary::after { content: '–'; }
.faq-item p {
  margin: 0 0 16px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ===== Deadline banner ===== */
.deadline-banner {
  background: linear-gradient(135deg, var(--accent-soft), var(--accent));
  color: var(--accent-ink);
  border-radius: var(--radius);
  padding: 20px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.deadline-banner .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.75;
}
.deadline-banner .days {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 600;
}

/* ===== Ad slots ===== */
.ad-placeholder {
  max-width: var(--maxw);
  margin: 24px auto;
  padding: 18px 20px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== Cross-promo card (seu próprio app) ===== */
.promo-card {
  max-width: var(--maxw);
  margin: 24px auto;
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  text-decoration: none;
  color: var(--text);
}
.promo-card .promo-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  flex-shrink: 0;
  object-fit: cover;
}
.promo-card .promo-body { flex: 1; min-width: 0; }
.promo-card .promo-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.promo-card .promo-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  margin: 2px 0 3px;
}
.promo-card .promo-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
}
.promo-card .promo-cta {
  flex-shrink: 0;
  text-align: right;
}
.promo-card .promo-price {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.92rem;
}
.promo-card .promo-btn {
  display: inline-block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 6px 10px;
  border-radius: 999px;
}

.subsection-title {
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 600;
  margin: 24px 0 8px;
}

.calc-formula {
  margin: 14px 0 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ===== Footer ===== */
footer {
  padding: 30px 0 50px;
  color: var(--text-muted);
  font-size: 0.78rem;
  border-top: 1px solid var(--border);
}
footer p { margin: 0 0 8px; }
footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

.privacy-note {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 16px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}