/* 
  CompoundCalc.co.za Global Styles 
  Extracted from compound-interest.html + Global UI Additions
*/

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&family=DM+Mono&display=swap');

/* @font-face {
  font-family: 'DM Sans';
  src: url('../fonts/dm-sans-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('../fonts/dm-sans-medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('../fonts/dm-sans-bold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'DM Mono';
  src: url('../fonts/dm-mono-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
} */

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

:root {
  --green: #16a34a;
  --green-light: #dcfce7;
  --green-muted: #86efac;
  --text: #111827;
  --text-muted: #6b7280;
  --text-faint: #9ca3af;
  --bg: #ffffff;
  --bg-surface: #f9fafb;
  --bg-active: #f3f4f6;
  --border: #e5e7eb;
  --border-focus: #16a34a;
  --amber: #d97706;
  --amber-light: #fef3c7;
  --blue: #2563eb;
  --blue-light: #dbeafe;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.04);
}

body {
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* --- Global Header & Nav --- */
header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.logo-dot {
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--green);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text);
  margin-left: auto;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 2rem;
    gap: 2rem;
    z-index: 1000;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links a {
    font-size: 1.25rem;
  }

  .mobile-menu-btn {
    display: block;
  }
}

/* --- Calculator Wrapper --- */
main {
  flex: 1;
}

.calc-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

.calc-header {
  margin-bottom: 2rem;
}

.calc-header h1 {
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

.calc-header p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
  width: fit-content;
  margin-bottom: 2rem;
}

.tab-btn {
  padding: 7px 18px;
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.tab-btn.active {
  background: var(--bg);
  color: var(--text);
  box-shadow: var(--shadow);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Layout */
.layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 680px) {
  .layout { grid-template-columns: 1fr; }
}

/* Input panel */
.input-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.input-row {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 10px;
  transition: border-color 0.15s;
}

.input-row:focus-within { border-color: var(--border-focus); }

.input-prefix {
  font-size: 0.875rem;
  color: var(--text-faint);
  font-weight: 500;
  user-select: none;
}

.input-row input {
  flex: 1;
  border: none;
  background: none;
  padding: 9px 4px;
  font-family: 'DM Mono', monospace;
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  width: 100%;
}

select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 10px;
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--text);
  background: var(--bg);
  outline: none;
  cursor: pointer;
  transition: border-color 0.15s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236b7280' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
}

select:focus { border-color: var(--border-focus); }

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.toggle-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.toggle {
  position: relative;
  width: 36px;
  height: 20px;
  flex-shrink: 0;
}

.toggle input { opacity: 0; width: 0; height: 0; position: absolute; }

.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s;
}

.toggle input:checked + .toggle-track { background: var(--green); }

.toggle-track::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  background: white;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform 0.2s;
}

.toggle input:checked + .toggle-track::after { transform: translateX(16px); }

.inflation-sub {
  margin-top: 6px;
  display: none;
}

.inflation-sub.visible { display: block; }

.divider {
  height: 1px;
  background: var(--border);
}

/* --- Results Panel --- */
.results-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.metric-card.accent {
  background: var(--green-light);
  border-color: var(--green-muted);
}

.metric-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.metric-card.accent .metric-label { color: #166534; }

.metric-value {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  font-family: 'DM Mono', monospace;
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), color 0.2s ease;
  display: inline-block;
}

.metric-value.updating {
  transform: scale(1.05);
  color: var(--green);
}

.metric-card.accent .metric-value { color: #14532d; }

.metric-sub {
  font-size: 0.75rem;
  color: var(--text-faint);
  margin-top: 2px;
}

.metric-card.accent .metric-sub { color: #15803d; }

/* Milestones */
.milestones {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.milestone-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 500;
  animation: pop 0.3s ease both;
}

@keyframes pop {
  0% { transform: scale(0.8); opacity: 0; }
  70% { transform: scale(1.05); }
  100% { transform: scale(1); opacity: 1; }
}

.milestone-badge.m2 { background: var(--blue-light); color: #1e40af; }
.milestone-badge.m5 { background: var(--amber-light); color: #92400e; }
.milestone-badge.m10 { background: var(--green-light); color: #14532d; }

.milestone-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.6;
}

/* Chart */
.chart-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.chart-legend {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.chart-container {
  position: relative;
  height: 220px;
  width: 100%;
}

/* Table */
.table-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  user-select: none;
  transition: background 0.15s;
}

.table-toggle:hover { background: var(--bg-active); }

.table-toggle .arrow {
  font-size: 0.75rem;
  transition: transform 0.2s;
}

.table-toggle.open .arrow { transform: rotate(180deg); }

.table-wrap {
  display: none;
  overflow: hidden;
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  overflow-x: auto;
}

.table-wrap.open { display: block; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.83rem;
}

thead th {
  background: var(--bg-surface);
  padding: 9px 14px;
  text-align: right;
  font-size: 0.73rem;
  font-weight: 500;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

thead th:first-child { text-align: left; }

tbody td {
  padding: 8px 14px;
  text-align: right;
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: 0.82rem;
  border-top: 1px solid var(--border);
}

tbody td:first-child {
  text-align: left;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  color: var(--text-muted);
}

tbody tr:hover { background: var(--bg-surface); }

.milestone-row td:first-child::after {
  content: attr(data-badge);
  display: inline-flex;
  margin-left: 6px;
  font-size: 0.68rem;
  padding: 1px 6px;
  border-radius: 10px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  background: var(--green-light);
  color: #14532d;
}

.table-footer {
  display: flex;
  justify-content: flex-end;
  padding: 10px 14px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  gap: 10px;
}

.btn-download, .btn-share, .btn-secondary, .btn-calculate, .btn-clear {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
}

.btn-secondary, .btn-clear, .btn-download, .btn-share {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.btn-secondary:hover, .btn-clear:hover, .btn-download:hover, .btn-share:hover {
  background: var(--bg-active);
  color: var(--text);
  border-color: var(--text-muted);
}

.btn-calculate {
  background: var(--green);
  color: white;
  border: none;
  font-weight: 600;
}

.btn-calculate:hover {
  background: #15803d;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(22, 163, 74, 0.2);
}

.action-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 2rem;
  align-items: center;
  flex-wrap: wrap;
}

/* --- New Features CSS --- */

/* Delay Cost Panel */
.delay-cost-panel {
  margin-top: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.delay-header {
  padding: 12px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.delay-body {
  padding: 16px;
  display: grid;
  gap: 12px;
}

.delay-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
}

.delay-label {
  color: var(--text-muted);
}

.delay-value {
  font-family: 'DM Mono', monospace;
  font-weight: 600;
  color: var(--green);
}

.action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 12px;
}

.currency-selector {
  display: flex;
  gap: 4px;
}

.currency-btn {
  padding: 4px 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.2s;
}

.currency-btn.active {
  background: var(--green);
  border-color: var(--green);
  color: white;
}

/* Affiliate CTA */
.affiliate-cta {
  background: #f0fdf4;
  border: 1px dashed var(--green-muted);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  margin-top: 1rem;
}

.affiliate-cta p {
  font-size: 0.95rem;
  font-weight: 600;
  color: #14532d;
  margin-bottom: 0.75rem;
}

.affiliate-cta a {
  display: inline-block;
  background: var(--green);
  color: white;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  transition: background 0.2s;
}

.affiliate-cta a:hover {
  background: #15803d;
}

.affiliate-cta small {
  display: block;
  font-size: 0.75rem;
  color: #166534;
  opacity: 0.8;
}

/* Ad Slots */
.ad-slot {
  min-height: 0;
  display: flex;
  justify-content: center;
  margin: 1.5rem 0;
}

/* --- Footer --- */
footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 4rem 1.5rem 2rem;
  margin-top: 2rem;
}

.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
}

@media (max-width: 768px) {
  .footer-container { grid-template-columns: 1fr; gap: 2rem; }
}

.footer-brand h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 300px;
}

.footer-links h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-faint);
  margin-bottom: 1.25rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  text-decoration: none;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--green);
}

.footer-bottom {
  max-width: 1100px;
  margin: 3rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--text-faint);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Cookie Banner */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #111827;
  color: #f9fafb;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  z-index: 9999;
  gap: 1rem;
}

@media (max-width: 600px) {
  #cookie-banner { flex-direction: column; text-align: center; }
}

/* Shared animated class */
.animated { animation: fade-up 0.4s ease both; }
@keyframes fade-up {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Compare tab extensions */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 1.5rem;
}

@media (max-width: 600px) { .compare-grid { grid-template-columns: 1fr; } }

.compare-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.compare-panel h3 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.compare-panel.b h3 { border-bottom-color: #fbbf24; }

.compare-result {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.compare-result .metric-value { font-size: 1.25rem; }

.compare-winner {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--green-light);
  color: #14532d;
  padding: 3px 8px;
  border-radius: 12px;
  margin-top: 5px;
}

.scenario-a { background: #eff6ff; border-color: #bfdbfe; }
.scenario-b { background: #fffbeb; border-color: #fde68a; }

/* Goal tab extensions */
.goal-result-big {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.goal-result-big .years-num {
  font-size: 3rem;
  font-weight: 600;
  color: var(--green);
  font-family: 'DM Mono', monospace;
  letter-spacing: -0.04em;
  line-height: 1;
}

.goal-result-big .years-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.goal-progress {
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 1.5rem;
}

.goal-progress-fill {
  height: 100%;
  background: var(--green);
  border-radius: 4px;
  transition: width 0.6s ease;
}

.goal-breakdown {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-top: 1rem;
}

@media (max-width: 500px) { .goal-breakdown { grid-template-columns: 1fr; } }

/* Toast Notification */
#toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--text);
  color: #fff;
  padding: 10px 24px;
  border-radius: 40px;
  font-size: 0.88rem;
  font-weight: 500;
  z-index: 10000;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  pointer-events: none;
}

#toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}