*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #F0EAE0;
  --surface:  #FAF7F2;
  --inset:    #E8E0D4;
  --dark:     #1A1612;
  --dark-s:   #241F1A;
  --dark-b:   #2E2822;
  --border:   #D8CEBF;
  --text-1:   #1A1612;
  --text-2:   #7A6E60;
  --text-3:   #B0A494;
  --text-d1:  #EAE2D8;
  --text-d2:  #8A7E72;
  --accent:   #C13A18;
  --accent-h: #E04E28;
  --success:  #5DC98A;
  --warning:  #C9A540;
  --ease:     cubic-bezier(0.16, 1, 0.3, 1);
  --fd: 'Barlow Condensed', sans-serif;
  --fu: 'Barlow', sans-serif;
  --fm: 'JetBrains Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-1);
  font-family: var(--fu);
  font-size: 17px;
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed; inset: 0;
  background: repeating-linear-gradient(
    180deg,
    transparent 0px,
    transparent 39px,
    rgba(180,160,130,0.12) 40px
  );
  pointer-events: none; z-index: 0;
}

/* ── TOOL PAGE LAYOUT ── */
.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 40px 96px;
  position: relative; z-index: 1;
}

/* ── NAV ── */
nav {
  padding: 36px 0 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  animation: fadeUp 0.4s var(--ease) both;
}

.back {
  font-family: var(--fd);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  text-decoration: none;
  transition: color 140ms;
}
.back:hover { color: var(--accent); }

.wordmark {
  font-family: var(--fd);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-1);
  text-decoration: none;
}
.wordmark em { font-style: normal; color: var(--accent); }

/* ── TOOL HEADER ── */
.tool-header {
  margin-bottom: 44px;
  animation: fadeUp 0.4s var(--ease) 0.05s both;
}

.tool-eyebrow {
  font-family: var(--fm);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.tool-eyebrow::before {
  content: '';
  display: inline-block;
  width: 20px; height: 1px;
  background: var(--accent);
}

.tool-title {
  font-family: var(--fd);
  font-size: clamp(3.2rem, 8vw, 5.2rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 0.92;
  color: var(--text-1);
  margin: 0 0 16px;
}

.tool-desc {
  font-family: var(--fu);
  font-weight: 300;
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1.65;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: 16px;
}

/* ── TABS ── */
.tabs {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 16px;
  animation: fadeUp 0.4s var(--ease) 0.06s both;
}
.tab {
  flex: 1;
  padding: 12px 8px;
  background: var(--surface);
  font-family: var(--fd);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  border: none;
  cursor: pointer;
  transition: all 140ms;
  border-right: 1px solid var(--border);
  text-align: center;
}
.tab:last-child { border-right: none; }
.tab.active { background: var(--accent); color: var(--surface); }
.tab:hover:not(.active) { color: var(--text-1); }

/* ── CARD ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 28px;
  margin-bottom: 16px;
  animation: fadeUp 0.4s var(--ease) 0.08s both;
}

.card-label {
  font-family: var(--fd);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.card-label::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* ── FORM FIELDS ── */
.field { margin-bottom: 20px; }

label {
  font-family: var(--fd);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-2);
  display: block;
  margin-bottom: 8px;
}

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }

.input-wrap { position: relative; }
.input-prefix {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  font-family: var(--fm); font-size: 0.78rem; color: var(--text-3); pointer-events: none;
}
.input-suffix {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  font-family: var(--fm); font-size: 0.78rem; color: var(--text-3); pointer-events: none;
}
.has-prefix input { padding-left: 24px; }
.has-suffix input { padding-right: 28px; }

.input-hint { font-family: var(--fu); font-size: 0.72rem; color: var(--text-3); margin-top: 5px; }

.field-error input,
.field-error select { border-color: var(--accent) !important; box-shadow: 0 0 0 3px rgba(193,58,24,0.08); }

.error-msg {
  font-family: var(--fm);
  font-size: 0.7rem;
  color: var(--accent);
  margin-top: 5px;
  display: none;
}
.field-error .error-msg { display: block; }

input[type="date"],
input[type="number"],
select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 1px;
  padding: 12px 15px;
  font: 400 1rem var(--fu);
  color: var(--text-1);
  outline: none;
  transition: border-color 140ms, box-shadow 140ms;
  -moz-appearance: textfield;
  appearance: none;
  color-scheme: light;
}
input::-webkit-inner-spin-button { -webkit-appearance: none; }
input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(193,58,24,0.08);
}
input::placeholder { color: var(--text-3); }

/* ── BUTTON ── */
.btn {
  font-family: var(--fd);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 14px 28px;
  border-radius: 1px;
  border: none;
  cursor: pointer;
  transition: all 150ms;
  line-height: 1;
  width: 100%;
  margin-top: 18px;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--accent); color: var(--surface); }
.btn-primary:hover { background: var(--accent-h); }

/* ── RESULT CARD ── */
.result-card {
  background: var(--dark);
  border: 1px solid var(--dark-b);
  border-radius: 2px;
  padding: 32px;
  margin-bottom: 16px;
  display: none;
  color: var(--text-d1);
}
.result-card.visible {
  display: block;
  animation: fadeUp 0.35s var(--ease) both;
}

.result-label {
  font-family: var(--fm);
  font-size: 0.68rem;
  color: var(--text-d2);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.result-label::after { content: ''; flex: 1; height: 1px; background: var(--dark-b); }

/* ── STATS GRID ── */
.res-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}
.res-stat {
  background: var(--dark-s);
  border: 1px solid var(--dark-b);
  border-radius: 1px;
  padding: 14px;
}
.res-val { font-family: var(--fm); font-size: 1.1rem; font-weight: 500; color: var(--text-d1); }
.res-lbl {
  font-family: var(--fd);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-d2);
  margin-top: 4px;
}

.disclaimer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--dark-b);
  font-family: var(--fu);
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--text-d2);
  line-height: 1.55;
}

/* ── FOOTER ── */
footer {
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-wm {
  font-family: var(--fd);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-2);
}
.footer-wm em { font-style: normal; color: var(--accent); }
.footer-meta { font-family: var(--fm); font-size: 0.7rem; color: var(--text-3); }

/* ── COMING SOON PAGE ── */
.coming-soon-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 48px 28px;
  text-align: center;
  margin-bottom: 16px;
}
.coming-soon-label {
  font-family: var(--fm);
  font-size: 0.65rem;
  color: var(--text-3);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.coming-soon-title {
  font-family: var(--fd);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 10px;
}
.coming-soon-sub {
  font-family: var(--fu);
  font-weight: 300;
  font-size: 0.9rem;
  color: var(--text-3);
}

/* ── ANIMATION ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── RESPONSIVE ── */
@media (max-width: 560px) {
  .page { padding: 0 20px 72px; }
  .field-row, .field-grid { grid-template-columns: 1fr; }
  .res-grid { grid-template-columns: 1fr 1fr; }
}