/* ============================================
   OVERTIME PAY CALC — Clean White Professional
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=IBM+Plex+Mono:wght@400;500&family=Source+Serif+4:ital,wght@0,400;0,500;1,400&display=swap');

/* ── Variables ── */
:root {
  --white: #ffffff;
  --off-white: #f7f8fa;
  --bg: #ffffff;
  --surface: #f7f8fa;
  --border: #e4e7ec;
  --border-dark: #d0d5dd;
  --text-primary: #0d1117;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --accent: #0f62fe;
  --accent-light: #ebf2ff;
  --accent-dark: #0043ce;
  --green: #12b76a;
  --green-light: #ecfdf5;
  --red: #f04438;
  --tag-bg: #f0f4ff;
  --tag-color: #0f62fe;
  --mono: 'IBM Plex Mono', monospace;
  --display: 'Syne', sans-serif;
  --serif: 'Source Serif 4', Georgia, serif;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.05);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.06);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--serif);
  background: var(--bg);
  color: var(--text-primary);
  font-size: 17px;
  line-height: 1.65;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

/* ── Container ── */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header ── */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.logo {
  font-family: var(--display);
  font-weight: 800;
  font-size: 17px;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  text-decoration: none;
}
.logo-dot { color: var(--accent); }
.header-nav { display: flex; gap: 28px; align-items: center; }
.header-nav a {
  font-family: var(--display);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.2px;
  transition: color 0.15s;
}
.header-nav a:hover { color: var(--accent); text-decoration: none; }

/* ── Hero ── */
.hero {
  padding: 64px 0 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  animation: fadeUp 0.5s ease both;
}
.hero-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  display: inline-block;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--display);
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -1.5px;
  color: var(--text-primary);
  margin-bottom: 18px;
}
.hero h1 .accent { color: var(--accent); }
.hero-sub {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.65;
  margin-bottom: 48px;
}
.hero-rule {
  height: 4px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-light) 60%, transparent 100%);
  margin-top: 0;
}

/* ── Section Base ── */
.section {
  padding: 72px 0;
  animation: fadeUp 0.5s ease both;
}
.section-tag {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.section h2 {
  font-family: var(--display);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.8px;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.section-intro {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 42px;
  line-height: 1.7;
}

/* ── Calculator Section ── */
.calc-section { background: var(--off-white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

/* Inputs */
.calc-inputs {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.input-group { margin-bottom: 22px; }
.input-group label {
  display: block;
  font-family: var(--display);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.2px;
  margin-bottom: 7px;
  text-transform: uppercase;
}
.input-wrap { position: relative; }
.input-prefix {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 15px;
  color: var(--text-muted);
  pointer-events: none;
}
.input-wrap input { padding-left: 28px !important; }

input[type="number"] {
  width: 100%;
  padding: 11px 14px;
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--off-white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  -moz-appearance: textfield;
}
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; }
input[type="number"]:focus {
  border-color: var(--accent);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(15,98,254,0.1);
}

/* Toggle */
.toggle-group { margin-bottom: 22px; }
.toggle-label {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}
.toggle-label input[type="checkbox"] { display: none; }
.toggle-switch {
  width: 42px;
  height: 24px;
  background: var(--border-dark);
  border-radius: 12px;
  position: relative;
  transition: background 0.2s;
  flex-shrink: 0;
}
.toggle-switch::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform 0.2s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.toggle-label input:checked + .toggle-switch { background: var(--accent); }
.toggle-label input:checked + .toggle-switch::after { transform: translateX(18px); }
.toggle-text {
  font-family: var(--display);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-secondary);
}

.double-time-row { animation: fadeUp 0.25s ease both; }

/* Calc Button */
.btn-calc {
  width: 100%;
  padding: 14px 24px;
  background: var(--accent);
  color: white;
  font-family: var(--display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.3px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  margin-top: 8px;
}
.btn-calc:hover {
  background: var(--accent-dark);
  box-shadow: 0 4px 16px rgba(15,98,254,0.3);
}
.btn-calc:active { transform: scale(0.99); }

/* Results */
.calc-results {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 80px;
}
.result-header {
  font-family: var(--display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
}
.result-label {
  font-family: var(--display);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}
.result-value {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--text-primary);
}
.result-divider {
  height: 1px;
  background: var(--border);
  margin: 6px 0;
}
.result-divider--heavy {
  height: 2px;
  background: var(--border-dark);
  margin: 12px 0;
}
.result-row--total .result-label {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}
.result-value--total {
  font-size: 28px;
  font-weight: 500;
  color: var(--accent);
}
.result-note {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--display);
  line-height: 1.6;
}

/* Result animation */
.result-value.updated {
  animation: popIn 0.3s ease both;
}

/* ── Ad Units ── */
.ad-unit {
  padding: 20px 24px;
  text-align: center;
  background: var(--off-white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.ad-unit.is-off {
  display: none;
  padding: 0;
  margin: 0;
  border: none;
}

/* ── Example Section ── */
.example-section { background: var(--white); }

.example-box {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.example-scenario {
  background: var(--accent);
  padding: 28px 36px;
  color: white;
}
.example-scenario-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  opacity: 0.75;
  margin-bottom: 16px;
}
.example-facts {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.fact span {
  font-family: var(--display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  opacity: 0.8;
}
.fact strong {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 500;
}

.example-steps { padding: 0; }
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.step:last-child { border-bottom: none; }
.step:hover { background: var(--off-white); }
.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  border-right: 1px solid var(--border);
  padding: 28px 0;
}
.step-content { padding: 28px 32px; }
.step-title {
  font-family: var(--display);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.step-formula {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.step-result {
  font-family: var(--mono);
  font-size: 20px;
  color: var(--accent);
  margin-bottom: 10px;
}
.step-result strong { font-weight: 500; }
.step-note {
  font-size: 14.5px;
  color: var(--text-secondary);
  font-family: var(--serif);
  line-height: 1.6;
}
.step--total .step-result { font-size: 24px; }
.step--total { background: var(--off-white); }

/* ── Formula Section ── */
.formula-section { background: var(--off-white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.formula-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 32px;
}
.formula-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, border-color 0.2s;
}
.formula-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.formula-card--total {
  grid-column: 1 / -1;
  border-left: 3px solid var(--accent);
}
.formula-card-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.formula-display {
  font-family: var(--mono);
  font-size: 15.5px;
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-bottom: 14px;
  color: var(--text-primary);
  line-height: 1.5;
}
.formula-card p {
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.formula-note {
  background: var(--accent-light);
  border: 1px solid rgba(15,98,254,0.2);
  border-radius: var(--radius);
  padding: 24px 28px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.formula-note strong { color: var(--text-primary); font-family: var(--display); }

/* ── Scenarios Section ── */
.scenarios-section { background: var(--white); }

.scenarios-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.scenario-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow 0.2s, transform 0.2s;
}
.scenario-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.scenario-icon {
  font-size: 24px;
  margin-bottom: 14px;
}
.scenario-card h3 {
  font-family: var(--display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.3;
}
.scenario-card p {
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ── Related Section ── */
.related-section { background: var(--off-white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.2s, border-color 0.2s, transform 0.15s;
}
.related-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
  transform: translateY(-2px);
  text-decoration: none;
}
.related-card-domain {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--accent);
  margin-bottom: 6px;
  font-weight: 500;
}
.related-card-title {
  font-family: var(--display);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}
.related-card-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.55;
  flex: 1;
}
.related-card-arrow {
  font-size: 18px;
  color: var(--accent);
  margin-top: 14px;
  font-family: var(--mono);
  transition: transform 0.15s;
}
.related-card:hover .related-card-arrow { transform: translateX(4px); }

.hub-link-row {
  margin-top: 28px;
  text-align: center;
}
.hub-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  border: 1.5px solid var(--accent);
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s;
}
.hub-link:hover {
  background: var(--accent);
  color: white;
  text-decoration: none;
}

/* ── FAQ Section ── */
.faq-section { background: var(--white); }

.faq-list { max-width: 760px; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow 0.15s;
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: var(--white);
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--display);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--text-primary);
  gap: 16px;
  transition: background 0.15s;
}
.faq-question:hover { background: var(--off-white); }
.faq-question.active { background: var(--accent-light); color: var(--accent); }
.faq-icon {
  font-family: var(--mono);
  font-size: 20px;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.2s;
  font-weight: 400;
}
.faq-question.active .faq-icon { transform: rotate(45deg); }
.faq-answer {
  display: none;
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 18px;
  background: var(--white);
}
.faq-answer.open { display: block; animation: fadeUp 0.2s ease both; }

/* ── Footer ── */
.site-footer {
  background: var(--text-primary);
  color: rgba(255,255,255,0.75);
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .logo { color: white; font-size: 18px; }
.footer-brand .logo-dot { color: var(--accent); }
.footer-tagline {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255,255,255,0.5);
  font-family: var(--serif);
}
.footer-contact {
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}
.footer-contact a {
  color: var(--accent);
  text-decoration: none;
}
.footer-contact a:hover { text-decoration: underline; }

.footer-col-title {
  font-family: var(--display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 16px;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 9px; }
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  font-family: var(--display);
  font-weight: 500;
  transition: color 0.15s;
}
.footer-links a:hover { color: white; text-decoration: none; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--display);
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}
.footer-bottom a {
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  transition: color 0.15s;
}
.footer-bottom a:hover { color: rgba(255,255,255,0.8); text-decoration: none; }
.footer-bottom-links { display: flex; gap: 20px; }

/* ── Utility Pages ── */
.page-hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--border);
}
.page-hero h1 {
  font-family: var(--display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.page-hero p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 600px;
}
.page-content {
  padding: 56px 0;
  max-width: 760px;
}
.page-content h2 {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 36px 0 12px;
}
.page-content p {
  margin-bottom: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.page-content ul {
  margin: 0 0 18px 20px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.contact-form {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  max-width: 540px;
  margin-top: 32px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-family: var(--display);
  font-size: 12.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-primary);
  margin-bottom: 7px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  font-family: var(--serif);
  font-size: 15px;
  color: var(--text-primary);
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--accent); }
.form-group textarea { min-height: 120px; resize: vertical; }
.btn-submit {
  padding: 13px 28px;
  background: var(--accent);
  color: white;
  font-family: var(--display);
  font-size: 14px;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s;
}
.btn-submit:hover { background: var(--accent-dark); }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes popIn {
  0% { transform: scale(0.97); opacity: 0.6; }
  60% { transform: scale(1.02); }
  100% { transform: scale(1); opacity: 1; }
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .calc-grid { grid-template-columns: 1fr; }
  .calc-results { position: static; }
  .formula-grid { grid-template-columns: 1fr; }
  .formula-card--total { grid-column: 1; }
  .scenarios-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .header-nav a:not(:last-child) { display: none; }
  .example-facts { gap: 20px; }
  .step { grid-template-columns: 48px 1fr; }
}
@media (max-width: 480px) {
  .related-grid { grid-template-columns: 1fr; }
  .hero h1 { letter-spacing: -0.8px; }
}

/* Calculator Explanation Sections */

.calculator-explanation {
    max-width: 750px;
    margin: 40px auto;
    padding: 0 16px;
    line-height: 1.6;
    color: #333;
}

.calculator-explanation h2 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.calculator-explanation p {
    margin-bottom: 14px;
}

.calculator-explanation ul {
    margin: 10px 0 16px 20px;
}

.calculator-explanation li {
    margin-bottom: 6px;
}