/*
 * shared.css — PanchatWeb
 * Design system variables, component library, nav, search overlay, footer,
 * and tool page layout. Loads after global.css on every page.
 */

/* ═══════════════════════════════════════════════════════════════════════════
   1. CSS VARIABLES — Dark Mode Default
   ═══════════════════════════════════════════════════════════════════════════ */
:root {
  /* Backgrounds */
  --bg:      #0d0f14;   /* Page background */
  --bg2:     #13161e;   /* Nav, footer, ad slots */
  --bg3:     #1a1e28;   /* Input fields, table rows hover */
  --card:    #1e2230;   /* Cards, input panels */

  /* Borders */
  --border:  rgba(255,255,255,0.08);   /* Default card border */
  --border2: rgba(255,255,255,0.14);   /* Inputs, emphasis borders */

  /* Accent */
  --accent:  #c8f135;   /* Primary lime green — CTAs, highlights */
  --accent2: #a8d420;   /* Hover state for accent */

  /* Text */
  --text:    #f0f2f8;   /* Primary text */
  --text2:   #8b8fa8;   /* Secondary / labels */
  --text3:   #5a5e70;   /* Muted / placeholders */

  /* Semantic colours */
  --green:   #34d399;   /* Principal, positive, success */
  --blue:    #60a5fa;   /* Insurance, info */
  --amber:   #fbbf24;   /* Tax, warning */
  --red:     #f87171;   /* Interest, danger, negative */

  /* Layout */
  --radius:    16px;
  --radius-sm: 10px;
  --radius-xs: 6px;

  /* Typography */
  --serif: 'DM Serif Display', Georgia, serif;
  --sans:  'DM Sans', system-ui, sans-serif;
}

/* ═══════════════════════════════════════════════════════════════════════════
   2. LIGHT MODE OVERRIDES
   ═══════════════════════════════════════════════════════════════════════════ */
[data-theme="light"] {
  --bg:      #f5f6fa;
  --bg2:     #ffffff;
  --bg3:     #eef0f6;
  --card:    #ffffff;
  --border:  rgba(0,0,0,0.08);
  --border2: rgba(0,0,0,0.14);
  --text:    #0d0f14;
  --text2:   #5a5e70;
  --text3:   #9da0b0;
}
/* Accent and semantic colours stay identical in both modes */

/* ═══════════════════════════════════════════════════════════════════════════
   3. COMPONENT LIBRARY
   ═══════════════════════════════════════════════════════════════════════════ */

/* 3.1 Card */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.card-sm {
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
}

/* 3.2 Eyebrow Pill */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(200,241,53,0.1);
  border: 1px solid rgba(200,241,53,0.2);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 1rem;
}

/* 3.3 Range Slider */
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--border2);
  border-radius: 4px;
  outline: none;
  margin-top: 10px;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--accent);
  cursor: pointer;
  transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* 3.4 Number Input */
.input-wrap {
  position: relative;
}

.input-prefix {
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  font-size: 15px;
  color: var(--text3);
  pointer-events: none;
  font-weight: 500;
}

.input-wrap input[type="number"] {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 500;
  padding: 11px 14px 11px 30px;
  outline: none;
  transition: border 0.15s, background 0.15s;
  -moz-appearance: textfield;
}

.input-wrap input::-webkit-inner-spin-button,
.input-wrap input::-webkit-outer-spin-button {
  -webkit-appearance: none;
}

.input-wrap input:focus {
  border-color: var(--accent);
  background: rgba(200,241,53,0.04);
}

/* 3.5 Result Hero Block */
.result-hero {
  background: linear-gradient(135deg, #1e2a14 0%, #1a2510 100%);
  border: 1px solid rgba(200,241,53,0.2);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
}

.result-label {
  font-size: 13px;
  font-weight: 500;
  color: rgba(200,241,53,0.7);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.result-amount {
  font-family: var(--serif);
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.result-sub {
  font-size: 14px;
  color: rgba(200,241,53,0.5);
  font-weight: 300;
}

/* 3.6 Breakdown Grid (4-cell) */
.breakdown-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.breakdown-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
}

.b-label  { font-size: 12px; color: var(--text3); font-weight: 500; letter-spacing: 0.03em; margin-bottom: 4px; }
.b-amount { font-size: 1.5rem; font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.b-green  { color: var(--green); }
.b-red    { color: var(--red); }
.b-amber  { color: var(--amber); }
.b-blue   { color: var(--blue); }

/* 3.7 Stat Card (3-column summary) */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.stat-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
}

.s-label { font-size: 11px; color: var(--text3); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px; }
.s-value { font-size: 1.1rem; font-weight: 600; font-variant-numeric: tabular-nums; }

/* 3.8 Coming Soon Card (Bento) */
.tool-card.coming-soon {
  border-style: dashed;
  opacity: 0.6;
  cursor: default;
  pointer-events: none;
}

.coming-badge {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(255,255,255,0.06);
  color: var(--text3);
  padding: 3px 8px;
  border-radius: 20px;
  margin-top: auto;
}

/* ═══════════════════════════════════════════════════════════════════════════
   4. ANIMATIONS
   ═══════════════════════════════════════════════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Apply with staggered delays */
.input-card  { animation: fadeUp 0.4s ease both; }
.result-hero { animation: fadeUp 0.4s ease 0.05s both; }
.breakdown   { animation: fadeUp 0.4s ease 0.10s both; }
.chart-card  { animation: fadeUp 0.4s ease 0.15s both; }
.stats-grid  { animation: fadeUp 0.4s ease 0.20s both; }

/* ═══════════════════════════════════════════════════════════════════════════
   5. NAV
   ═══════════════════════════════════════════════════════════════════════════ */

/* Ad header */
.ad-header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 90px;
}

/* Nav */
.site-nav {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav-brand span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  font-size: 13px;
  color: var(--text2);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all 0.15s;
}
.nav-links a:hover { background: var(--bg3); color: var(--text); }

.nav-links a.active {
  background: rgba(200,241,53,0.12);
  color: var(--accent);
}

.nav-actions { display: flex; gap: 4px; align-items: center; }

.nav-icon-btn {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text2);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.nav-icon-btn:hover { background: var(--bg3); color: var(--text); }

/* Mobile nav */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .site-nav { padding: 0 1rem; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   6. SEARCH OVERLAY
   ═══════════════════════════════════════════════════════════════════════════ */
.search-overlay {
  position: fixed;
  top: 0; left: 50%;
  transform: translateX(-50%) translateY(-20px);
  width: min(640px, 95vw);
  background: var(--card);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 1rem;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  margin-top: 80px;
}

.search-overlay.open {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.search-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.search-backdrop.open { opacity: 1; pointer-events: all; }

.search-box {
  display: flex; gap: 8px; align-items: center;
}

#searchInput {
  flex: 1;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  padding: 10px 14px;
  outline: none;
}
#searchInput:focus { border-color: var(--accent); }

.search-close {
  background: transparent; border: none;
  color: var(--text3); font-size: 16px;
  cursor: pointer; padding: 8px;
}

.search-results { margin-top: 0.75rem; }

.search-result-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-xs);
  text-decoration: none;
  color: var(--text);
  transition: background 0.1s;
}
.search-result-item:hover { background: var(--bg3); }
.search-result-item .r-name { font-size: 14px; font-weight: 500; }
.search-result-item .r-cat  { font-size: 12px; color: var(--text3); }

/* ═══════════════════════════════════════════════════════════════════════════
   7. FOOTER
   ═══════════════════════════════════════════════════════════════════════════ */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 4rem;
}

.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 3rem 2rem 2rem;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text3);
  margin-top: 0.5rem;
  line-height: 1.6;
  max-width: 180px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.footer-col h4 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 0.75rem;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text2);
  text-decoration: none;
  padding: 3px 0;
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--text); }

.footer-bottom {
  max-width: 1160px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text3);
}

/* Ad mid slot */
.ad-mid {
  max-width: 1160px;
  margin: 2rem auto 0;
  padding: 0 2rem;
  display: flex;
  justify-content: center;
}


@media (max-width: 860px) {
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .footer-links { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 4px; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   8. TOOL PAGE LAYOUT
   ═══════════════════════════════════════════════════════════════════════════ */
.tool-page {
  max-width: 1160px;
  margin: 0 auto;
  padding: 3rem 2rem 4rem;
}

.tool-hero {
  margin-bottom: 3rem;
}

.tool-hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.tool-hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: 16px;
  color: var(--text2);
  max-width: 520px;
  font-weight: 300;
  line-height: 1.6;
}

/* Main 2-column grid */
.tool-main-grid {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 24px;
  align-items: start;
}

/* Full-width children (ad, table) */
.ad-inline,
.detail-card {
  grid-column: 1 / -1;
}

/* Results stack */
.results-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Input field layout */
.field { margin-bottom: 1.5rem; }

.field label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 13px;
  font-weight: 500;
  color: var(--text2);
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

.field label span {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 1.5rem 0;
}

.optional-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 1rem;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* Chart layout */
.chart-wrap {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.legend { list-style: none; flex: 1; padding: 0; margin: 0; }
.legend li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.legend li:last-child { border-bottom: none; }
.legend-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 8px;
}
.legend-name { color: var(--text2); display: flex; align-items: center; }
.legend-pct  { font-weight: 600; color: var(--text); font-variant-numeric: tabular-nums; }

/* Detail table */
.detail-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.detail-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 1.25rem;
}
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
table { width: 100%; border-collapse: collapse; font-size: 13px; font-variant-numeric: tabular-nums; }
thead th {
  background: var(--bg3);
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text3);
  white-space: nowrap;
}
tbody tr { border-top: 1px solid var(--border); transition: background 0.1s; }
tbody tr:hover { background: var(--bg3); }
tbody td { padding: 10px 14px; color: var(--text2); }
tbody td:first-child { color: var(--text); font-weight: 500; }

/* Related tools */
.related-tools { margin-top: 3rem; }
.related-tools h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   9. ABOUT TOOL SECTION
   ═══════════════════════════════════════════════════════════════════════════ */
.about-tool {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.about-tool h2 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 1rem;
}
.about-tool p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.75;
  max-width: 760px;
  margin-bottom: 0.75rem;
}
.about-tool p:last-child {
  margin-bottom: 0;
}

/* ═══════════════════════════════════════════════════════════════════════════
   10. TOOL DISCLAIMER
   ═══════════════════════════════════════════════════════════════════════════ */
.tool-disclaimer {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 2rem;
  padding: 12px 16px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text3);
  line-height: 1.5;
}
.tool-disclaimer svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   10. RESPONSIVE BREAKPOINTS
   ═══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 860px) {
  .tool-main-grid { grid-template-columns: 1fr; }
  .related-grid   { grid-template-columns: 1fr 1fr; }
  .tool-page      { padding: 2rem 1rem 3rem; }
  .stats-grid     { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .related-grid   { grid-template-columns: 1fr; }
  .chart-wrap     { flex-direction: column; }
  .stats-grid     { grid-template-columns: 1fr; }
  .two-col        { grid-template-columns: 1fr; }
  .breakdown-grid { grid-template-columns: 1fr; }
}