/* =========================================
   FINCALC – Groww-inspired Design System
   ========================================= */

:root {
  --green: #00a846;
  --green-dark: #007a32;
  --green-light: #e8f5e9;
  --text-primary: #1a1a2e;
  --text-secondary: #5a6a7a;
  --text-muted: #8a9ab0;
  --bg: #f7f9fb;
  --bg-white: #ffffff;
  --border: #e8edf2;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-pill: 100px;
  --font: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden; /* prevent any enhanced component from causing page-level scroll */
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  /* NOTE: overflow-x intentionally NOT set on body.
     Setting it here would create a new scroll container and break
     position:sticky on the navbar in Safari and Firefox. */
}

a { text-decoration: none; color: inherit; }

/* =========================================
   NAVBAR
   ========================================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 22px;
  font-weight: 700;
  flex-shrink: 0;
}
.logo-icon { font-size: 24px; }
.logo-text { font-weight: 700; letter-spacing: -0.5px; }
.accent { color: var(--green-dark); }

.nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}
.nav-links a {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.18s;
}
.nav-links a:hover {
  background: var(--green-light);
  color: var(--green-dark);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
  color: var(--text-primary);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 12px 24px 16px;
  border-top: 1px solid var(--border);
  gap: 2px;
}
.mobile-menu a {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}
.mobile-menu a:hover { background: var(--green-light); color: var(--green-dark); }
.mobile-menu.open { display: flex; }

/* =========================================
   HERO
   ========================================= */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 24px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.hero-badge {
  display: inline-block;
  background: var(--green-light);
  color: var(--green-dark);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.3px;
}

.hero-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.hero-sub {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 420px;
}

.hero-art {
  position: relative;
  width: 220px;
  height: 220px;
  flex-shrink: 0;
}
.art-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: pulse 3s ease-in-out infinite;
}
.r1 { width: 220px; height: 220px; border-color: rgba(0,200,83,0.15); animation-delay: 0s; }
.r2 { width: 160px; height: 160px; border-color: rgba(0,200,83,0.25); animation-delay: 0.5s; }
.r3 { width: 100px; height: 100px; border-color: rgba(0,200,83,0.4); animation-delay: 1s; }
.art-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 64px; height: 64px;
  background: var(--green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  color: white;
  box-shadow: 0 0 32px rgba(0,200,83,0.4);
}

@keyframes pulse {
  0%, 100% { transform: translate(-50%,-50%) scale(1); opacity: 1; }
  50% { transform: translate(-50%,-50%) scale(1.05); opacity: 0.7; }
}

/* =========================================
   CALCULATOR GRID
   ========================================= */
.calc-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.section-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.calc-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.calc-card:hover {
  border-color: var(--green);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.card-info { flex: 1; }
.card-info h3 { font-size: 15px; font-weight: 600; margin-bottom: 3px; }
.card-info p { font-size: 12px; color: var(--text-muted); line-height: 1.4; }

.card-arrow {
  font-size: 18px;
  color: var(--text-muted);
  transition: transform 0.2s;
}
.calc-card:hover .card-arrow { transform: translateX(4px); color: var(--green-dark); }

/* =========================================
   CALCULATOR PAGE LAYOUT
   ========================================= */
.calc-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.calc-page-header {
  margin-bottom: 32px;
}

.breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.breadcrumb a { color: var(--green-dark); }

.calc-page-header h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}
.calc-page-header p { color: var(--text-secondary); font-size: 15px; }

.calc-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

/* INPUT PANEL */
.input-panel {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.input-group {
  margin-bottom: 28px;
}

.input-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.input-value {
  font-weight: 700;
  color: var(--green-dark);
  font-size: 15px;
}

.slider-wrap { position: relative; }

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 4px;
  background: var(--border);
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--green);
  border: 3px solid white;
  box-shadow: 0 2px 8px rgba(0,200,83,0.4);
  cursor: pointer;
  transition: transform 0.15s;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }

.slider-track {
  height: 4px;
  border-radius: 4px;
  background: var(--green);
  position: absolute;
  top: 0; left: 0;
  pointer-events: none;
}

.number-input {
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 15px;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg);
  outline: none;
  transition: border-color 0.18s;
  margin-top: 8px;
}
.number-input:focus { border-color: var(--green); background: white; }

.btn-calc {
  width: 100%;
  background: var(--green);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 8px;
}
.btn-calc:hover { background: var(--green-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,200,83,0.35); }
.btn-calc:active { transform: translateY(0); }

/* RESULT PANEL */
.result-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.result-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.result-highlight {
  background: linear-gradient(135deg, #00c853 0%, #00a152 100%);
  color: white;
  border: none;
}

.result-highlight .result-label { color: rgba(255,255,255,0.8); }
.result-highlight .result-amount { color: white; }

.result-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 500;
}

.result-amount {
  font-size: 28px;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.result-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.result-row:last-child { border-bottom: none; padding-bottom: 0; }
.result-row span:first-child { color: var(--text-secondary); }
.result-row span:last-child { font-weight: 600; font-family: var(--font-mono); }

/* DONUT CHART */
.chart-wrap {
  display: flex;
  align-items: center;
  gap: 20px;
}

.donut-svg {
  flex-shrink: 0;
  width: 160px;
  height: 160px;
  display: block;
}

.legend {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}
.legend-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}
.legend-item .lval {
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-primary);
}
.legend-item .lval-label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
  display: block;
}

/* =========================================
   YEAR TABLE
   ========================================= */
.year-table-wrap {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-top: 24px;
}
.year-table-head {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  font-weight: 600;
}
.year-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.year-table th {
  background: var(--bg);
  padding: 10px 16px;
  text-align: left;
  color: var(--text-muted);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}
.year-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
}
.year-table tr:last-child td { border-bottom: none; }
.year-table tr:hover td { background: var(--bg); }
.year-table .total-row td { font-weight: 700; color: var(--green-dark); background: var(--green-light); }

/* =========================================
   FOOTER
   ========================================= */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-white);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* =========================================
   INFO BOX
   ========================================= */
.info-box {
  background: var(--green-light);
  border-left: 3px solid var(--green);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 18px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 24px;
}

/* =========================================
   TABS
   ========================================= */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 4px;
  margin-bottom: 24px;
  width: fit-content;
}
.tab {
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-family: var(--font);
  transition: all 0.18s;
}
.tab.active {
  background: var(--bg-white);
  color: var(--green-dark);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; flex-shrink: 0; }
  .nav-inner { gap: 12px; overflow: hidden; padding: 0 12px; }

  .hero {
    flex-direction: column;
    padding: 40px 20px 32px;
    text-align: center;
  }
  .hero-art { width: 150px; height: 150px; }
  .r1 { width: 150px; height: 150px; }
  .r2 { width: 110px; height: 110px; }
  .r3 { width: 72px; height: 72px; }
  .art-center { width: 48px; height: 48px; font-size: 20px; }
  .hero-sub { margin: 0 auto; }

  .calc-grid { grid-template-columns: 1fr; }

  .calc-layout { grid-template-columns: 1fr; }

  .chart-wrap { flex-direction: column; align-items: center; }
  .donut-svg { width: 150px; height: 150px; }

  .footer-inner { flex-direction: column; gap: 6px; text-align: center; }

  .year-table-wrap { overflow-x: auto; }
  .year-table { min-width: 500px; }
}

@media (max-width: 480px) {
  .input-panel, .result-card { padding: 18px; }
  .result-amount { font-size: 22px; }
  .calc-page { padding: 24px 16px 60px; }
}

/* =========================================
   SEO CONTENT SECTIONS
   ========================================= */
.seo-section {
  max-width: 1100px;
  margin: 48px auto 0;
  padding: 0 24px 80px;
}

.seo-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 40px 0 14px;
  letter-spacing: -0.4px;
  padding-top: 8px;
}
.seo-section h2:first-child { margin-top: 0; }

.seo-section h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 20px 0 8px;
}

.seo-section p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 14px;
}

.seo-section ul, .seo-section ol {
  padding-left: 20px;
  margin-bottom: 16px;
}
.seo-section li {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 6px;
}

.seo-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 0 40px;
}

/* Formula box */
.formula-box {
  background: var(--text-primary);
  color: #e8f5e9;
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 15px;
  margin: 16px 0 20px;
  line-height: 1.9;
  overflow-x: auto;
}
.formula-box .f-label {
  color: #80cbc4;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
  display: block;
  font-family: var(--font);
}
.formula-box .f-main {
  color: #a5d6a7;
  font-size: 17px;
  font-weight: 500;
}
.formula-box .f-vars {
  color: #b0bec5;
  font-size: 13px;
  margin-top: 8px;
}

/* Example box */
.example-box {
  background: var(--green-light);
  border: 1px solid #c8e6c9;
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin: 16px 0 20px;
}
.example-box .ex-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--green-dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}
.example-box table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.example-box td {
  padding: 5px 0;
  color: var(--text-secondary);
}
.example-box td:last-child {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
  text-align: right;
}
.example-box .ex-result td {
  font-weight: 700;
  color: var(--green-dark);
  border-top: 1px solid #a5d6a7;
  padding-top: 8px;
  margin-top: 4px;
}

/* FAQ accordion */
.faq-list { margin: 4px 0 0; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
  background: var(--bg-white);
}
.faq-q {
  width: 100%;
  background: none;
  border: none;
  padding: 16px 20px;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background 0.15s;
}
.faq-q:hover { background: var(--bg); }
.faq-q .faq-icon {
  font-size: 18px;
  color: var(--green-dark);
  font-weight: 400;
  flex-shrink: 0;
  transition: transform 0.25s;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a {
  display: none;
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.faq-item.open .faq-a { display: block; }

/* Benefits grid */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin: 16px 0 20px;
}
.benefit-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
}
.benefit-card .b-icon { font-size: 22px; margin-bottom: 8px; }
.benefit-card .b-title { font-size: 14px; font-weight: 700; margin-bottom: 4px; color: var(--text-primary); }
.benefit-card .b-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; }

/* Comparison table in SEO */
.seo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 16px 0 20px;
  background: var(--bg-white);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.seo-table th {
  background: var(--text-primary);
  color: white;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
}
.seo-table td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}
.seo-table tr:last-child td { border-bottom: none; }
.seo-table tr:nth-child(even) td { background: var(--bg); }
.seo-table .highlight td { color: var(--green-dark); font-weight: 600; }

@media (max-width: 768px) {
  .seo-section { padding: 0 16px 60px; }
  .seo-section h2 { font-size: 19px; }
  .benefits-grid { grid-template-columns: 1fr 1fr; }
  .formula-box { font-size: 13px; padding: 16px; }

  /* Only the 3-column PPF vs ELSS table needs horizontal scroll.
     Target it by checking for a 3rd th using :has() */
  .seo-table:has(thead tr th:nth-child(3)) {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .seo-table:has(thead tr th:nth-child(3)) td,
  .seo-table:has(thead tr th:nth-child(3)) th {
    min-width: 110px;
    white-space: normal;
  }
}
@media (max-width: 480px) {
  .benefits-grid { grid-template-columns: 1fr; }
}

/* =========================================
   PRESET BUTTONS
   ========================================= */
.preset-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;  /* already set, kept explicit */
  margin-top: 10px;
  /* Prevent the row itself from stretching wider than its parent */
  max-width: 100%;
  overflow: hidden;
}
.preset-btn {
  padding: 5px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--bg);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.preset-btn:hover {
  border-color: var(--green);
  background: var(--green-light);
  color: var(--green-dark);
}
.preset-btn.active {
  border-color: var(--green);
  background: var(--green);
  color: white;
}

/* =========================================
   RESULT HIGHLIGHT — EMOTIONAL SUB-LINE
   ========================================= */
.result-sub {
  display: flex;
  gap: 16px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.result-sub-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.result-sub-label {
  font-size: 11px;
  opacity: 0.75;
  font-weight: 400;
  letter-spacing: 0.2px;
}
.result-sub-value {
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-mono);
}

/* =========================================
   SHARE BAR
   ========================================= */
.share-bar {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  margin-top: 20px;
}
.share-bar-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.share-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  /* Prevent row from exceeding parent width on any screen */
  max-width: 100%;
  overflow: hidden;
}
.share-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  border: none;
  transition: all 0.18s;
  text-decoration: none;
  white-space: nowrap;
}
.share-btn svg {
  width: 15px; height: 15px;
  flex-shrink: 0;
}
/* WhatsApp */
.share-btn.whatsapp {
  background: #e8f5e9;
  color: #1a7a35;
  border: 1.5px solid #a5d6a7;
}
.share-btn.whatsapp:hover {
  background: #25D366;
  color: white;
  border-color: #25D366;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37,211,102,0.3);
}
/* Twitter/X */
.share-btn.twitter {
  background: #e8f0fe;
  color: #1a1a2e;
  border: 1.5px solid #c5d8ff;
}
.share-btn.twitter:hover {
  background: #000000;
  color: white;
  border-color: #000;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
/* Copy Link */
.share-btn.copylink {
  background: var(--bg);
  color: var(--text-secondary);
  border: 1.5px solid var(--border);
}
.share-btn.copylink:hover {
  background: var(--green-light);
  color: var(--green-dark);
  border-color: var(--green);
  transform: translateY(-1px);
}
.share-btn.copylink.copied {
  background: var(--green);
  color: white;
  border-color: var(--green);
}
/* Download PDF */
.share-btn.download {
  background: #fff3e0;
  color: #bf360c;
  border: 1.5px solid #ffcc80;
}
.share-btn.download:hover {
  background: #bf360c;
  color: white;
  border-color: #bf360c;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(191,54,12,0.25);
}

@media (max-width: 480px) {
  .share-buttons { gap: 6px; }
  .share-btn {
    padding: 6px 10px;
    font-size: 11.5px;
    /* Allow label text to wrap so buttons never overflow parent */
    white-space: normal;
    word-break: break-word;
    /* Shrink evenly so all four buttons share the row */
    flex: 1 1 auto;
    min-width: 0;
    justify-content: center;
    text-align: center;
  }
}

/* Very narrow phones (≤360px) — stack share buttons 2-per-row */
@media (max-width: 360px) {
  .share-btn {
    flex: 1 1 calc(50% - 6px);
  }
}

/* =========================================
   RELATED CALCULATORS
   ========================================= */
.related-section {
  max-width: 1100px;
  margin: 40px auto 0;
  padding: 0 24px;
}

.related-header {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.related-card {
  background: var(--bg-white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 14px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}
.related-card:hover {
  border-color: var(--green);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.related-card:hover .related-arrow {
  transform: translateX(3px);
  color: var(--green-dark);
}

.related-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.related-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.related-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.related-arrow {
  font-size: 14px;
  color: var(--text-muted);
  transition: transform 0.2s, color 0.2s;
  margin-top: auto;
}

@media (max-width: 900px) {
  .related-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 600px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .related-section { padding: 0 16px; }
}

/* =========================================
   DARK MODE
   ========================================= */
/* =========================================
   DARK MODE — COMPREHENSIVE
   ========================================= */

/* ── CSS variable overrides ── */
[data-theme="dark"] {
  --green:          #00e676;
  --green-dark:     #00c853;
  --green-light:    #003d1a;
  --text-primary:   #e8edf2;
  --text-secondary: #9aaab8;
  --text-muted:     #5a6a7a;
  --bg:             #0f1117;
  --bg-white:       #1a1f2e;
  --border:         #2a3244;
  --shadow-sm:      0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:      0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg:      0 8px 40px rgba(0,0,0,0.5);
}

/* ── Inputs ── */
[data-theme="dark"] .number-input {
  background: #252a3a;
  color: var(--text-primary);
  border-color: var(--border);
}
[data-theme="dark"] .number-input:focus {
  background: #2e3450;
  border-color: var(--green);
}
[data-theme="dark"] input[type="range"] {
  background: var(--border);
}
[data-theme="dark"] select,
[data-theme="dark"] textarea,
[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="email"],
[data-theme="dark"] input[type="number"] {
  background: #252a3a !important;
  color: var(--text-primary) !important;
  border-color: var(--border) !important;
}
[data-theme="dark"] select:focus,
[data-theme="dark"] textarea:focus {
  border-color: var(--green) !important;
  background: #2e3450 !important;
}

/* ── Result cards ── */
[data-theme="dark"] .result-highlight {
  background: linear-gradient(135deg, #00874a 0%, #005c30 100%);
}
[data-theme="dark"] .result-sub-label { color: rgba(255,255,255,0.65); }
[data-theme="dark"] .result-sub-value { color: #ffffff; }

/* ── Tables ── */
/* ── Year table ── */
[data-theme="dark"] .year-table-wrap   { background: #232b3e; border-color: #3a4a66; box-shadow: 0 0 0 1px #3a4a66; }
[data-theme="dark"] .year-table-head   { color: #d0e0f0; background: #232b3e; border-color: #3a4a66; }
[data-theme="dark"] .year-table th     { background: #1a2236; color: #8aa8c8; border-color: #3a4a66; }
[data-theme="dark"] .year-table td     { color: #9aaab8; border-color: #2e3a52; background: #232b3e; }
[data-theme="dark"] .year-table tr:nth-child(odd) td  { background: #232b3e; }
[data-theme="dark"] .year-table tr:nth-child(even) td { background: #1e2535; }
[data-theme="dark"] .year-table tr:hover td { background: #2a3550; }
[data-theme="dark"] .year-table .total-row td { background: #0d2e1a; color: #00e676; border-color: #1a4d2e; }

/* ── SEO comparison table ── */
[data-theme="dark"] .seo-table         { background: #232b3e; box-shadow: 0 0 0 1px #3a4a66, 0 4px 20px rgba(0,0,0,0.5); border-radius: var(--radius-sm); overflow: hidden; border: none; }
[data-theme="dark"] .seo-table th      { background: #1a2236; color: #d0e0f0; border-bottom: 2px solid #3a4a66; padding: 13px 16px; }
[data-theme="dark"] .seo-table td      { color: #9aaab8; border-color: #2e3a52; background: #232b3e; }
[data-theme="dark"] .seo-table tr:nth-child(even) td { background: #1e2535; }
[data-theme="dark"] .seo-table tr:hover td { background: #2d3a55; }
[data-theme="dark"] .seo-table .highlight td { color: #00e676; font-weight: 600; background: #0d2a18; }

/* ── Breakup table (salary page) ── */
[data-theme="dark"] .breakup-table     { background: #1e2638; }
[data-theme="dark"] .breakup-table th  { background: #141c2e; color: #7a9ab8; border-color: #2e3a52; }
[data-theme="dark"] .breakup-table td  { color: var(--text-secondary); border-color: #2e3a52; background: #1e2638; }
[data-theme="dark"] .breakup-table tr:nth-child(even) td { background: #19202f; }
[data-theme="dark"] .breakup-table .section-head td { background: #141c2e; color: #7a9ab8; letter-spacing: 0.5px; }
[data-theme="dark"] .breakup-table .total-row td    { background: #0d2e1a; color: #00e676; border-color: #1a4d2e; }
[data-theme="dark"] .breakup-table .net-row td      { background: #0d2e1a; color: #00e676; border-color: #1a4d2e; font-size: 15px; }
[data-theme="dark"] .breakup-table .deduct-row td   { color: #ff7070; }
[data-theme="dark"] .breakup-table .warn td         { background: #1e2a10; }

/* ── SEO content ── */
[data-theme="dark"] .seo-section        { color: var(--text-secondary); }
[data-theme="dark"] .seo-section h2,
[data-theme="dark"] .seo-section h3     { color: var(--text-primary); }
[data-theme="dark"] .seo-divider        { border-color: var(--border); }
[data-theme="dark"] .formula-box        { background: #0a0d14; color: #a5d6a7; }
[data-theme="dark"] .formula-box .f-vars{ color: #7a8fa6; }
[data-theme="dark"] .formula-box .f-main{ color: #69f0ae; }
[data-theme="dark"] .example-box        { background: #002a12; border-color: #004d1f; }
[data-theme="dark"] .example-box .ex-title { color: var(--green); }
[data-theme="dark"] .example-box td     { color: var(--text-secondary); }
[data-theme="dark"] .example-box td:last-child { color: var(--text-primary); }
[data-theme="dark"] .example-box .ex-result td { color: var(--green); border-color: #004d1f; }
[data-theme="dark"] .benefit-card       { background: var(--bg-white); border-color: var(--border); }
[data-theme="dark"] .benefit-card .b-title { color: var(--text-primary); }
[data-theme="dark"] .benefit-card .b-desc  { color: var(--text-muted); }
[data-theme="dark"] .info-box           { background: #002a12; border-color: #004d1f; color: #9aaab8; }
[data-theme="dark"] .faq-item           { background: var(--bg-white); border-color: var(--border); }
[data-theme="dark"] .faq-q              { color: var(--text-primary); }
[data-theme="dark"] .faq-q:hover        { background: #252a3a; }
[data-theme="dark"] .faq-a              { color: var(--text-secondary); border-color: var(--border); }
[data-theme="dark"] .faq-icon           { color: var(--green); }

/* ── Preset buttons ── */
[data-theme="dark"] .preset-btn {
  background: #252a3a;
  color: var(--text-secondary);
  border-color: var(--border);
}
[data-theme="dark"] .preset-btn:hover {
  background: #003d1a;
  color: var(--green);
  border-color: var(--green);
}
[data-theme="dark"] .preset-btn.active {
  background: var(--green);
  color: #0f1117;
  border-color: var(--green);
}

/* ── Share bar ── */
[data-theme="dark"] .share-bar          { background: var(--bg-white); border-color: var(--border); }
[data-theme="dark"] .share-bar-title    { color: var(--text-muted); }
[data-theme="dark"] .share-btn.whatsapp { background: #002a12; color: #69f0ae; border-color: #004d1f; }
[data-theme="dark"] .share-btn.twitter  { background: #1a1f2e; color: var(--text-primary); border-color: var(--border); }
[data-theme="dark"] .share-btn.copylink { background: #252a3a; color: var(--text-secondary); border-color: var(--border); }
[data-theme="dark"] .share-btn.download { background: #2a1500; color: #ff9a5c; border-color: #4a2200; }
[data-theme="dark"] .share-btn.whatsapp:hover { background: #25D366; color: #fff; }
[data-theme="dark"] .share-btn.twitter:hover  { background: #000; color: #fff; }
[data-theme="dark"] .share-btn.copylink:hover { background: #003d1a; color: var(--green); }
[data-theme="dark"] .share-btn.copylink.copied{ background: var(--green); color: #0f1117; }
[data-theme="dark"] .share-btn.download:hover { background: #bf360c; color: #fff; }

/* ── Related calculators ── */
[data-theme="dark"] .related-section    {}
[data-theme="dark"] .related-header     { color: var(--text-primary); }
[data-theme="dark"] .related-card       { background: var(--bg-white); border-color: var(--border); }
[data-theme="dark"] .related-name       { color: var(--text-primary); }
[data-theme="dark"] .related-desc       { color: var(--text-muted); }
[data-theme="dark"] .related-card:hover { border-color: var(--green); box-shadow: 0 4px 20px rgba(0,200,83,0.15); }

/* ── Related card icons (inline bg colors need opacity fix) ── */
[data-theme="dark"] .related-icon       { opacity: 0.85; }

/* ── Tabs ── */
[data-theme="dark"] .tabs  { background: #141824; border-color: var(--border); }
[data-theme="dark"] .tab   { color: var(--text-muted); }
[data-theme="dark"] .tab.active {
  background: var(--bg-white);
  color: var(--green);
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
[data-theme="dark"] .tab:hover  { color: var(--text-primary); }

/* ── Navbar ── */
[data-theme="dark"] .navbar     { background: var(--bg-white); border-color: var(--border); }
[data-theme="dark"] .nav-links a{ color: var(--text-muted); }
[data-theme="dark"] .nav-links a:hover { background: var(--green-light); color: var(--green); }
[data-theme="dark"] .mobile-menu{ background: var(--bg-white); border-color: var(--border); }
[data-theme="dark"] .mobile-menu a { color: var(--text-secondary); }
[data-theme="dark"] .mobile-menu a:hover { background: var(--green-light); color: var(--green); }
[data-theme="dark"] .nav-toggle { color: var(--text-primary); }

/* ── Hero (index page) ── */
[data-theme="dark"] .hero-badge  { background: var(--green-light); color: var(--green); }
[data-theme="dark"] .art-center  { box-shadow: 0 0 32px rgba(0,230,118,0.25); }
[data-theme="dark"] .calc-card   { background: var(--bg-white); border-color: var(--border); }
[data-theme="dark"] .calc-card:hover { border-color: var(--green); }
[data-theme="dark"] .card-info h3{ color: var(--text-primary); }
[data-theme="dark"] .card-info p { color: var(--text-muted); }
[data-theme="dark"] .section-label { color: var(--text-muted); }

/* ── Gratuity / Salary special cards ── */
[data-theme="dark"] .emp-type-btn {
  background: #1e2435;
  border-color: var(--border);
  color: var(--text-secondary);
}
[data-theme="dark"] .emp-type-btn small { color: var(--text-muted); }
[data-theme="dark"] .emp-type-btn.active {
  border-color: var(--green);
  background: var(--green-light);
  color: var(--green);
}
[data-theme="dark"] .emp-type-btn.active small { color: var(--green); opacity: 0.75; }

[data-theme="dark"] .rule-banner.rule-new  { background: #002a12; border-color: #004d1f; }
[data-theme="dark"] .rule-banner.rule-warn { background: #2a1e00; border-color: #4a3600; }
[data-theme="dark"] .rule-banner.rule-err  { background: #2a0010; border-color: #4a0020; }
[data-theme="dark"] .rule-banner strong    { color: var(--text-primary); }
[data-theme="dark"] .rule-banner span      { color: var(--text-secondary); }

[data-theme="dark"] .compliance-box        { border-radius: 10px; }
[data-theme="dark"] .compliance-pass       { background: #002a12; border-color: #004d1f; }
[data-theme="dark"] .compliance-fail       { background: #2a1e00; border-color: #4a3600; }
[data-theme="dark"] .compliance-title      { color: var(--text-primary); }

/* ── Salary breakup % bars ── */
[data-theme="dark"] .pct-bar-wrap { background: #252a3a; }

/* ── Tax regime cards ── */
[data-theme="dark"] .regime-card  { background: var(--bg-white); border-color: var(--border); }
[data-theme="dark"] .regime-title { color: var(--text-primary); }
[data-theme="dark"] .regime-card.selected { border-color: var(--green); box-shadow: 0 0 0 2px rgba(0,200,83,0.15); }

/* ── Legend (donut chart) ── */
[data-theme="dark"] .legend-item .lval       { color: var(--text-primary); }
[data-theme="dark"] .legend-item .lval-label { color: var(--text-muted); }

/* ── Donut canvas ── */
[data-theme="dark"] canvas { filter: brightness(0.88) contrast(1.05); }

/* ── Breadcrumb ── */
[data-theme="dark"] .breadcrumb     { color: var(--text-muted); }
[data-theme="dark"] .breadcrumb a   { color: var(--green); }

/* ── Footer ── */
[data-theme="dark"] .footer         { background: var(--bg-white); border-color: var(--border); }
[data-theme="dark"] .footer-main    { }
[data-theme="dark"] .footer-brand p { color: var(--text-muted); }
[data-theme="dark"] .footer-col h4  { color: var(--text-secondary); }
[data-theme="dark"] .footer-col ul li a { color: var(--text-muted); }
[data-theme="dark"] .footer-col ul li a:hover { color: var(--green); }
[data-theme="dark"] .footer-bottom  { border-color: var(--border); color: var(--text-muted); }
[data-theme="dark"] .footer-bottom-links a { color: var(--text-muted); }
[data-theme="dark"] .footer-bottom-links a:hover { color: var(--green); }

/* ── Legal / info pages ── */
[data-theme="dark"] .disclaimer-banner { background: #2a1500; border-color: #4a2200; color: #ff9a5c; }
[data-theme="dark"] .privacy-highlight { background: #002a12; border-color: #004d1f; color: var(--green); }
[data-theme="dark"] .contact-form      { background: var(--bg-white); border-color: var(--border); }
[data-theme="dark"] .feature-item      { background: var(--bg-white); border-color: var(--border); }

/* ── Smooth transition on all interactive elements ── */
*, *::before, *::after {
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.15s ease;
}
/* But not on animations / transforms */
input[type="range"], canvas, .dark-toggle::after,
.preset-btn, .share-btn, .calc-card, .related-card, .faq-q {
  transition: background-color 0.2s ease, border-color 0.2s ease,
              color 0.15s ease, transform 0.15s ease, box-shadow 0.2s ease;
}

/* =========================================
   ENHANCED-LAYER OVERFLOW GUARDS
   Defensive rules for components added by enhancement
   layers (hero-hook, insight engine, corpus chart, share
   insight text, mini result bar, sticky CTA). These ensure
   any page that loads styles.css + an enhancement layer
   never gets horizontal scroll on mobile.
   ========================================= */

/* Fixed bars (mini result bar, sticky CTA) painted by JS:
   Clamp to viewport width so iOS Safari doesn't count them
   as overflow and enable page-level horizontal scroll. */
.mini-result-bar,
.sticky-mobile-cta {
  max-width: 100vw;
  overflow: hidden;
}

/* Flex children inside mini-result-bar must not push width */
.mini-result-bar > * {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Hero hook, insight engine, chart container, share insight:
   must never exceed their parent card width */
.hero-hook,
.trust-badge,
.insight-engine,
.chart-container,
.share-insight-text,
.use-case-grid,
.use-case-card {
  max-width: 100%;
  box-sizing: border-box;
}

/* Preset buttons on very small screens:
   allow shrinking so 4 buttons always fit */
@media (max-width: 400px) {
  .preset-btn {
    padding: 5px 8px;
    font-size: 11px;
    flex: 1 1 auto;
  }
}

/* Chart canvas must never overflow its wrapper.
   max-width:100% is sufficient — do NOT set height:auto here because
   Chart.js controls canvas height via JS and CSS height override breaks rendering. */
.chart-wrap canvas {
  max-width: 100%;
}

/* Insight recommendation text: break long ₹ values gracefully */
.insight-recommendation,
.insight-text,
.share-insight-text {
  word-break: break-word;
  overflow-wrap: break-word;
}

.dark-toggle {
  width: 42px;
  height: 24px;
  border-radius: 12px;
  background: var(--border);
  border: none;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: background 0.25s;
  padding: 0;
  outline: none;
}
.dark-toggle::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  top: 3px;
  left: 3px;
  transition: transform 0.25s, background 0.25s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.25);
}
[data-theme="dark"] .dark-toggle {
  background: var(--green);
}
[data-theme="dark"] .dark-toggle::after {
  transform: translateX(18px);
  background: #0f1117;
}

.dark-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  white-space: nowrap;
}
.dark-toggle-wrap .toggle-icon {
  font-size: 15px;
  line-height: 1;
  user-select: none;
}

/* =========================================
   FOOTER — REDESIGNED
   ========================================= */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-white);
  margin-top: 40px;
}

.footer-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .logo-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: 10px;
  max-width: 240px;
}
.footer-brand .dark-toggle-wrap {
  margin-top: 18px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 14px;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.footer-col ul li a {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}
.footer-col ul li a:hover { color: var(--green-dark); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
  gap: 12px;
  flex-wrap: wrap;
}
.footer-bottom-links {
  display: flex;
  gap: 16px;
}
.footer-bottom-links a {
  color: var(--text-muted);
  font-size: 12px;
  text-decoration: none;
  transition: color 0.15s;
}
.footer-bottom-links a:hover { color: var(--green-dark); }

/* Remove old footer-inner */
.footer-inner { display: none; }

@media (max-width: 900px) {
  .footer-main { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 560px) {
  .footer-main { grid-template-columns: 1fr; gap: 24px; padding: 28px 16px 20px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* ── Semantic color helpers ── */
.text-debit { color: #e65100; }
[data-theme="dark"] .text-debit { color: #ff8a50; }

/* ── Card icons: desaturate pastels in dark mode ── */
[data-theme="dark"] .card-icon,
[data-theme="dark"] .related-icon,
[data-theme="dark"] .legend-dot-light {
  filter: brightness(0.55) saturate(0.8);
}

/* ── Legend dot light variant ── */
[data-theme="dark"] .legend-dot[style*="#e8f5e9"] {
  border-color: #004d1f !important;
}

/* ── Donut chart white hole fix ── */
[data-theme="dark"] .result-card {
  --donut-bg: #1a1f2e;
}