/* ══════════════════════════════════════════
   MORTGAGECALC – style.css
   Fintech-grade design: clean, high-trust
   Fonts: DM Serif Display + Sora
══════════════════════════════════════════ */

/* ── TOKENS ── */
:root {
  --bg:          #f7f7f5;
  --bg-alt:      #ffffff;
  --bg-card:     #ffffff;
  --border:      #e4e4e0;
  --border-mid:  #d0d0ca;
  --text:        #1a1a18;
  --text-2:      #5c5c58;
  --text-3:      #9a9a94;
  --accent:      #1a5c3a;
  --accent-lt:   #e8f5ed;
  --accent-mid:  #2d8a5e;
  --accent-vivid:#22c55e;
  --danger:      #c0392b;
  --danger-lt:   #fdecea;
  --gold:        #c9952e;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:   0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.05);
  --shadow-lg:   0 12px 32px rgba(0,0,0,.10), 0 4px 8px rgba(0,0,0,.06);
  --radius:      14px;
  --radius-sm:   8px;
  --radius-lg:   20px;
  --font-head:   'DM Serif Display', Georgia, serif;
  --font-body:   'Sora', system-ui, sans-serif;
  --transition:  .2s cubic-bezier(.4,0,.2,1);

  /* Donut chart colors */
  --donut-bg:        #eeeeea;
  --donut-principal: #1a5c3a;
  --donut-interest:  #c9952e;
  --donut-extras:    #5c8fd4;

  /* Ad slot */
  --ad-bg:   #f0f0ec;
  --ad-border: #ddddd8;
}

[data-theme="dark"] {
  --bg:          #111110;
  --bg-alt:      #181817;
  --bg-card:     #1e1e1c;
  --border:      #2a2a28;
  --border-mid:  #3a3a38;
  --text:        #f0f0ee;
  --text-2:      #a0a09a;
  --text-3:      #666662;
  --accent:      #22c55e;
  --accent-lt:   #0d2d1e;
  --accent-mid:  #1a9e50;
  --accent-vivid:#22c55e;
  --danger:      #e74c3c;
  --danger-lt:   #2d1210;
  --gold:        #f0b942;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.3);
  --shadow-md:   0 4px 12px rgba(0,0,0,.4);
  --shadow-lg:   0 12px 32px rgba(0,0,0,.5);
  --donut-bg:    #2a2a28;
  --ad-bg:   #1a1a18;
  --ad-border: #2a2a28;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  transition: background var(--transition), color var(--transition);
}

img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button { cursor: pointer; font-family: var(--font-body); }
input, select { font-family: var(--font-body); }
ul { list-style: disc; padding-left: 1.25rem; }
li { margin-bottom: .25rem; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── CONTAINER ── */
.container { max-width: 1120px; margin: 0 auto; padding: 0 1.25rem; }

/* ── CARD ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), border-color var(--transition);
}

/* ══════════════════════
   HEADER
══════════════════════ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--transition), border-color var(--transition);
}
.header-inner {
  display: flex; align-items: center; gap: 1.5rem;
  height: 60px;
}
.logo {
  display: flex; align-items: center; gap: .5rem;
  font-weight: 700; font-size: 1.1rem;
  color: var(--text); text-decoration: none;
}
.logo-icon { font-size: 1.3rem; color: var(--accent); }
.logo-text { color: var(--text); }
.header-nav { display: flex; gap: 1.5rem; margin-left: auto; }
.header-nav a {
  font-size: .85rem; font-weight: 500; color: var(--text-2);
  text-decoration: none; padding: .25rem 0; border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.header-nav a:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--border);
  color: var(--text-2); font-size: 1rem; transition: all var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover { background: var(--accent-lt); border-color: var(--accent); color: var(--accent); }
[data-theme="light"] .moon { display: none; }
[data-theme="dark"] .sun { display: none; }

/* ══════════════════════
   AD SLOTS
══════════════════════ */
.ad-slot {
  background: var(--ad-bg);
  border-top: 1px solid var(--ad-border);
  border-bottom: 1px solid var(--ad-border);
}
.ad-placeholder {
  display: flex; align-items: center; justify-content: center;
  min-height: 90px; max-width: 1120px; margin: 0 auto; padding: .75rem 1.25rem;
}
.ad-label {
  font-size: .7rem; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--text-3);
  border: 1px dashed var(--border-mid); border-radius: 4px;
  padding: .5rem 1.25rem;
}
.ad-inline .ad-placeholder { min-height: 120px; }
.ad-footer .ad-placeholder { min-height: 90px; }

/* ══════════════════════
   HERO
══════════════════════ */
.hero {
  padding: 3.5rem 0 2.5rem;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
}
.hero-badge {
  display: inline-block;
  font-size: .72rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-lt);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  border-radius: 50px; padding: .3rem 1rem; margin-bottom: 1.25rem;
}
.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.15;
  color: var(--text);
  margin-bottom: .75rem;
}
.hero-title em {
  display: block;
  font-style: italic; color: var(--accent);
  font-size: .8em;
}
.hero-subtitle {
  font-size: 1.05rem; color: var(--text-2);
  max-width: 540px; margin: 0 auto;
}

/* ══════════════════════
   CALCULATOR LAYOUT
══════════════════════ */
.calculator-section { padding: 3rem 0; }

.calc-layout {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 1.5rem;
  align-items: start;
}

/* ── INPUTS ── */
.calc-inputs { padding: 1.75rem; }
.panel-title {
  font-family: var(--font-head); font-size: 1.2rem;
  color: var(--text); margin-bottom: 1.5rem;
  padding-bottom: .75rem; border-bottom: 1px solid var(--border);
}

.input-group { margin-bottom: 1.25rem; }
.input-group label {
  display: block; font-size: .8rem; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase;
  color: var(--text-2); margin-bottom: .45rem;
}
.input-hint {
  display: block; font-size: .72rem; color: var(--text-3); margin-top: .3rem;
}
.input-row { display: flex; gap: .75rem; }
.input-wrap {
  position: relative; display: flex; align-items: center;
  background: var(--bg); border: 1.5px solid var(--border-mid);
  border-radius: var(--radius-sm); overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
  flex: 1;
}
.input-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}
.input-wrap.small { flex: 0 0 90px; }
.input-wrap .prefix, .input-wrap .suffix {
  padding: 0 .65rem; font-size: .85rem; font-weight: 600;
  color: var(--text-3); background: transparent; white-space: nowrap;
  user-select: none;
}
.input-wrap input[type="number"] {
  width: 100%; border: none; outline: none;
  background: transparent; color: var(--text);
  padding: .65rem .5rem; font-size: .95rem; font-weight: 500;
  -moz-appearance: textfield;
}
.input-wrap input[type="number"]::-webkit-outer-spin-button,
.input-wrap input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.input-wrap.currency input { padding-left: 0; }
.input-wrap.percent input, .input-wrap.years input { padding-right: 0; }

/* term buttons */
.term-buttons {
  display: flex; gap: .4rem; margin-bottom: .5rem; flex-wrap: wrap;
}
.term-btn {
  font-size: .75rem; font-weight: 600; border-radius: 6px;
  padding: .35rem .75rem; border: 1.5px solid var(--border-mid);
  background: var(--bg); color: var(--text-2);
  transition: all var(--transition);
}
.term-btn:hover { border-color: var(--accent); color: var(--accent); }
.term-btn.active {
  background: var(--accent); border-color: var(--accent);
  color: #fff; box-shadow: 0 2px 8px color-mix(in srgb, var(--accent) 35%, transparent);
}

/* extras accordion */
.extras-toggle { border: 1.5px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.extras-summary {
  list-style: none; cursor: pointer;
  padding: .7rem 1rem; font-size: .82rem; font-weight: 600;
  color: var(--accent); user-select: none;
  transition: background var(--transition);
}
.extras-summary:hover { background: var(--accent-lt); }
.extras-summary::-webkit-details-marker { display: none; }
.extras-summary::marker { display: none; }
.toggle-label { font-weight: 400; color: var(--text-3); }
.extras-body { padding: 1rem 1rem 0; }
.extras-body .input-group:last-child { margin-bottom: 1rem; }

/* error */
.error-banner {
  display: flex; align-items: center; gap: .6rem;
  background: var(--danger-lt); border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
  border-radius: var(--radius-sm); padding: .65rem .9rem;
  margin-top: 1rem; font-size: .82rem; color: var(--danger);
}
.error-banner[hidden] { display: none; }
.error-icon { font-size: 1rem; }

/* ── RESULTS ── */
.calc-results { display: flex; flex-direction: column; gap: 1rem; }

.monthly-payment-card {
  padding: 1.75rem;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-mid) 100%);
  border-color: transparent;
  color: #fff;
}
.payment-label { font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; opacity: .75; }
.payment-amount {
  font-family: var(--font-head); font-size: clamp(2.4rem, 5vw, 3.2rem);
  line-height: 1.1; margin: .35rem 0 .6rem;
}
.payment-breakdown { display: flex; flex-wrap: wrap; gap: .4rem .2rem; font-size: .78rem; opacity: .85; }
.breakdown-item strong { font-weight: 700; }
.breakdown-sep { opacity: .5; }

.stats-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: .75rem;
}
.stat-card { padding: 1rem 1.25rem; }
.stat-label { font-size: .72rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); margin-bottom: .25rem; }
.stat-value { font-family: var(--font-head); font-size: 1.35rem; color: var(--text); }
.stat-value.accent { color: var(--gold); }

/* ── DONUT CHART ── */
.chart-card { padding: 1.5rem; }
.chart-title {
  font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--text-3); margin-bottom: 1rem;
}
.chart-wrap { display: flex; align-items: center; gap: 1.5rem; }
#donutChart { width: 140px; height: 140px; flex-shrink: 0; }
#donutBg { stroke: var(--donut-bg); }
#donutInterest { stroke: var(--donut-interest); transition: stroke-dasharray .6s cubic-bezier(.4,0,.2,1); }
#donutPrincipal { stroke: var(--donut-principal); transition: stroke-dasharray .6s cubic-bezier(.4,0,.2,1), stroke-dashoffset .6s cubic-bezier(.4,0,.2,1); }
.donut-center-label { font-family: var(--font-head); font-size: 13px; fill: var(--text); font-weight: 700; }
.donut-center-sub { font-family: var(--font-body); font-size: 8px; fill: var(--text-3); }
.chart-legend { display: flex; flex-direction: column; gap: .6rem; font-size: .8rem; color: var(--text-2); }
.legend-item { display: flex; align-items: center; gap: .55rem; }
.legend-dot { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.legend-dot.principal { background: var(--donut-principal); }
.legend-dot.interest { background: var(--donut-interest); }
.legend-dot.extras { background: var(--donut-extras); }
.legend-item strong { color: var(--text); font-weight: 700; }

/* ══════════════════════
   AMORTIZATION
══════════════════════ */
.amort-section { padding: 2rem 0 3rem; }
.section-header {
  display: flex; align-items: center; flex-wrap: wrap; gap: 1rem;
  margin-bottom: 1.25rem;
}
.section-title {
  font-family: var(--font-head); font-size: 1.6rem; color: var(--text);
}
.amort-controls { display: flex; align-items: center; gap: .75rem; margin-left: auto; flex-wrap: wrap; }
.view-toggle { display: flex; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.view-btn {
  padding: .4rem .9rem; font-size: .78rem; font-weight: 600;
  background: transparent; border: none; color: var(--text-2);
  transition: all var(--transition);
}
.view-btn.active { background: var(--accent); color: #fff; }
.btn-export {
  font-size: .78rem; font-weight: 600; padding: .4rem .9rem;
  background: var(--bg-card); border: 1px solid var(--border-mid);
  border-radius: var(--radius-sm); color: var(--text-2);
  transition: all var(--transition);
}
.btn-export:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-lt); }

.table-wrap {
  overflow-x: auto; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-card);
  box-shadow: var(--shadow-sm);
}
.amort-table { width: 100%; border-collapse: collapse; font-size: .82rem; }
.amort-table thead { background: var(--bg); position: sticky; top: 0; z-index: 1; }
.amort-table th {
  text-align: right; padding: .75rem 1rem;
  font-size: .7rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: var(--text-3); border-bottom: 1.5px solid var(--border);
  white-space: nowrap;
}
.amort-table th:first-child, .amort-table td:first-child { text-align: left; }
.amort-table td {
  padding: .6rem 1rem; text-align: right; border-bottom: 1px solid var(--border);
  color: var(--text-2); white-space: nowrap; transition: background var(--transition);
}
.amort-table tbody tr:last-child td { border-bottom: none; }
.amort-table tbody tr:hover td { background: var(--bg); }
.amort-table .col-interest { color: var(--gold); }
.amort-table .col-balance { font-weight: 600; color: var(--text); }
.amort-table .yr-row td { background: color-mix(in srgb, var(--accent) 5%, var(--bg-card)); font-weight: 600; color: var(--text); }
.empty-state { text-align: center !important; padding: 2.5rem !important; color: var(--text-3); font-size: .85rem; }

.table-pagination {
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap;
  gap: .4rem; margin-top: 1rem;
}
.page-btn {
  padding: .3rem .65rem; border-radius: 6px; font-size: .78rem; font-weight: 600;
  border: 1px solid var(--border); background: var(--bg-card); color: var(--text-2);
  transition: all var(--transition);
}
.page-btn:hover { border-color: var(--accent); color: var(--accent); }
.page-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.page-ellipsis { padding: .3rem .2rem; color: var(--text-3); font-size: .8rem; user-select: none; }

/* ══════════════════════
   HOW IT WORKS
══════════════════════ */
.how-section { padding: 3rem 0; }
.how-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem; margin-top: 1.75rem;
}
.how-card { padding: 1.5rem; }
.how-icon { font-size: 1.75rem; margin-bottom: .75rem; }
.how-card h3 { font-family: var(--font-head); font-size: 1.1rem; margin-bottom: .6rem; }
.how-card p { font-size: .85rem; color: var(--text-2); margin-bottom: .5rem; }
.how-card ul { font-size: .85rem; color: var(--text-2); }
.formula-block {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: .7rem 1rem;
  margin: .75rem 0; overflow-x: auto;
}
.formula-block code { font-family: 'Courier New', monospace; font-size: .83rem; color: var(--accent); }
.formula-legend { font-size: .78rem !important; }

/* ══════════════════════
   FAQ
══════════════════════ */
.faq-section { padding: 3rem 0; }
.faq-list { margin-top: 1.75rem; display: flex; flex-direction: column; gap: .6rem; }
.faq-item {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-card); overflow: hidden;
  transition: box-shadow var(--transition);
}
.faq-item[open] { box-shadow: var(--shadow-md); }
.faq-q {
  list-style: none; cursor: pointer; padding: 1rem 1.25rem;
  font-size: .9rem; font-weight: 600; color: var(--text);
  display: flex; justify-content: space-between; align-items: center;
  transition: background var(--transition);
  user-select: none;
}
.faq-q:hover { background: var(--bg); }
.faq-q::-webkit-details-marker { display: none; }
.faq-q::marker { display: none; }
.faq-q::after {
  content: '+'; font-size: 1.1rem; color: var(--accent); font-weight: 400;
  transition: transform var(--transition); flex-shrink: 0; margin-left: 1rem;
}
.faq-item[open] .faq-q::after { transform: rotate(45deg); }
.faq-a { padding: 0 1.25rem 1rem; font-size: .85rem; color: var(--text-2); line-height: 1.65; }
.faq-a p + p { margin-top: .5rem; }

/* ══════════════════════
   GLOSSARY
══════════════════════ */
.glossary-section { padding: 3rem 0; }
.glossary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem; margin-top: 1.75rem;
}
.glossary-item {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 1rem 1.1rem;
}
.glossary-item dt { font-weight: 700; font-size: .85rem; color: var(--accent); margin-bottom: .3rem; }
.glossary-item dd { font-size: .8rem; color: var(--text-2); }

/* ══════════════════════
   FOOTER
══════════════════════ */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: 2rem;
}
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: .75rem; text-align: center; }
.footer-brand { display: flex; align-items: center; gap: .4rem; font-weight: 700; font-size: 1rem; }
.footer-disclaimer { font-size: .75rem; color: var(--text-3); max-width: 640px; line-height: 1.55; }
.footer-copy { font-size: .72rem; color: var(--text-3); }

/* ══════════════════════
   RESPONSIVE
══════════════════════ */
@media (max-width: 860px) {
  .calc-layout { grid-template-columns: 1fr; }
  .header-nav { display: none; }
  .payment-amount { font-size: 2.2rem; }
}

@media (max-width: 560px) {
  .hero { padding: 2.5rem 0 2rem; }
  .hero-title { font-size: 1.75rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .amort-controls { width: 100%; justify-content: flex-start; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .chart-wrap { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .input-row { flex-direction: column; }
  .input-wrap.small { flex: 1; }
  .how-grid { grid-template-columns: 1fr; }
  .glossary-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 380px) {
  .glossary-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
}

/* ══════════════════════
   ANIMATIONS
══════════════════════ */
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.calc-results > * { animation: fadeIn .35s ease both; }
.calc-results > *:nth-child(1) { animation-delay: .0s; }
.calc-results > *:nth-child(2) { animation-delay: .05s; }
.calc-results > *:nth-child(3) { animation-delay: .1s; }

@keyframes countUp { from { opacity: 0; transform: scale(.95); } to { opacity: 1; transform: scale(1); } }
.payment-amount.updated { animation: countUp .25s ease; }

/* ── Print ── */
@media print {
  .site-header, .ad-slot, .hero, .how-section, .faq-section, .glossary-section, .site-footer { display: none; }
  .table-wrap { box-shadow: none; border: 1px solid #ccc; }
  .amort-table td, .amort-table th { font-size: .75rem; padding: .35rem .6rem; }
}

/* ══════════════════════
   NAV ADDITIONS
══════════════════════ */
.nav-blog {
  background: var(--accent-lt);
  color: var(--accent) !important;
  padding: .25rem .75rem !important;
  border-radius: 50px;
  border-bottom: none !important;
  font-weight: 600 !important;
}
.nav-blog:hover { background: var(--accent) !important; color: #fff !important; text-decoration: none; }
.nav-active { font-weight: 700 !important; color: var(--accent) !important; }

/* ══════════════════════
   FOOTER NAV
══════════════════════ */
.footer-nav {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: .5rem 1.5rem; margin-bottom: .5rem;
}
.footer-nav a { font-size: .82rem; color: var(--text-3); transition: color var(--transition); }
.footer-nav a:hover { color: var(--accent); text-decoration: none; }

/* ══════════════════════
   BLOG PREVIEW (index.html)
══════════════════════ */
.blog-preview-section { padding: 3rem 0; }
.btn-viewall {
  font-size: .82rem; font-weight: 600; color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 50px; padding: .35rem .9rem;
  transition: all var(--transition); white-space: nowrap;
}
.btn-viewall:hover { background: var(--accent); color: #fff; text-decoration: none; }
.blog-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem; margin-top: 0;
}
.blog-preview-card {
  padding: 1.5rem; display: flex; flex-direction: column; gap: .6rem;
  text-decoration: none; color: inherit;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.blog-preview-card:hover {
  box-shadow: var(--shadow-md); transform: translateY(-2px);
  border-color: var(--accent); text-decoration: none;
}
.bp-cat {
  font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-lt);
  display: inline-block; padding: .2rem .6rem; border-radius: 50px;
  width: fit-content;
}
.bp-title { font-family: var(--font-head); font-size: 1.05rem; line-height: 1.3; color: var(--text); }
.bp-excerpt { font-size: .82rem; color: var(--text-2); line-height: 1.55; flex: 1; }
.bp-meta { display: flex; gap: .75rem; font-size: .72rem; color: var(--text-3); flex-wrap: wrap; margin-top: auto; }
.read-more-link { color: var(--accent); font-weight: 600; }

/* ══════════════════════
   BLOG INDEX PAGE
══════════════════════ */
.blog-hero {
  padding: 3rem 0 2rem; text-align: center;
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
}

/* Filter bar */
.blog-filter-bar { padding: 1.5rem 0; }
.filter-tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.filter-btn {
  font-size: .78rem; font-weight: 600; padding: .4rem .9rem;
  border-radius: 50px; border: 1.5px solid var(--border-mid);
  background: var(--bg-card); color: var(--text-2);
  transition: all var(--transition);
}
.filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.filter-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Featured post */
.blog-featured-wrap { padding-bottom: 0; }
.blog-featured {
  display: flex; flex-direction: column; gap: .75rem;
  padding: 2rem; text-decoration: none; color: inherit;
  border-left: 4px solid var(--accent);
  transition: box-shadow var(--transition), transform var(--transition);
  margin-bottom: 1rem;
}
.blog-featured:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); text-decoration: none; }
.bf-badge {
  font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--gold); background: color-mix(in srgb, var(--gold) 12%, transparent);
  display: inline-block; padding: .2rem .65rem; border-radius: 50px; width: fit-content;
}
.bf-title { font-family: var(--font-head); font-size: clamp(1.2rem, 3vw, 1.6rem); line-height: 1.25; color: var(--text); }
.bf-excerpt { font-size: .9rem; color: var(--text-2); line-height: 1.6; max-width: 640px; }

/* Blog grid */
.blog-grid-section { padding: 2rem 0 3rem; }
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1.25rem;
}
.blog-card {
  padding: 1.35rem; display: flex; flex-direction: column; gap: .55rem;
  text-decoration: none; color: inherit;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.blog-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--accent); text-decoration: none; }
.bc-top { display: flex; align-items: center; justify-content: space-between; gap: .5rem; }
.bc-read { font-size: .68rem; font-weight: 600; color: var(--text-3); white-space: nowrap; }
.bc-title { font-family: var(--font-head); font-size: .98rem; line-height: 1.3; color: var(--text); flex: 1; }
.bc-excerpt { font-size: .79rem; color: var(--text-2); line-height: 1.5; }
.no-results { text-align: center; color: var(--text-3); padding: 2rem; font-size: .9rem; }

/* Newsletter */
.newsletter-section { padding: 2rem 0 3rem; }
.newsletter-card {
  padding: 2.5rem; text-align: center; max-width: 560px; margin: 0 auto;
}
.nl-icon { font-size: 2rem; margin-bottom: .75rem; }
.newsletter-card h2 { font-family: var(--font-head); font-size: 1.5rem; margin-bottom: .5rem; }
.newsletter-card p { font-size: .88rem; color: var(--text-2); margin-bottom: 1.25rem; }
.nl-form { display: flex; gap: .5rem; max-width: 400px; margin: 0 auto 0.75rem; flex-wrap: wrap; justify-content: center; }
.nl-input {
  flex: 1; min-width: 200px; padding: .65rem 1rem;
  border: 1.5px solid var(--border-mid); border-radius: var(--radius-sm);
  background: var(--bg); color: var(--text); font-family: var(--font-body); font-size: .88rem;
  outline: none; transition: border-color var(--transition);
}
.nl-input:focus { border-color: var(--accent); }
.nl-btn {
  padding: .65rem 1.25rem; background: var(--accent); color: #fff; border: none;
  border-radius: var(--radius-sm); font-family: var(--font-body); font-size: .88rem; font-weight: 600;
  transition: opacity var(--transition);
}
.nl-btn:hover { opacity: .88; }
.nl-note { font-size: .72rem; color: var(--text-3); }

/* ══════════════════════
   BLOG POST PAGE
══════════════════════ */
.post-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2.5rem;
  padding-top: 2rem;
  padding-bottom: 3rem;
  align-items: start;
}

/* Breadcrumb */
.breadcrumb {
  font-size: .75rem; color: var(--text-3); margin-bottom: 1.25rem;
  display: flex; flex-wrap: wrap; gap: .25rem; align-items: center;
}
.breadcrumb a { color: var(--text-3); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }

/* Post header */
.post-header { margin-bottom: 2rem; }
.post-title {
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.2; color: var(--text); margin: .75rem 0 1rem;
}
.post-meta { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; font-size: .78rem; color: var(--text-3); margin-bottom: 1rem; }
.post-intro {
  font-size: 1.05rem; color: var(--text-2); line-height: 1.65;
  border-left: 3px solid var(--accent); padding-left: 1rem;
  font-style: italic;
}

/* TOC */
.toc {
  padding: 1.25rem 1.5rem; margin-bottom: 2rem;
  background: var(--accent-lt);
  border-color: color-mix(in srgb, var(--accent) 20%, transparent);
}
.toc-title { font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: .75rem; }
.toc-list { padding-left: 1.25rem; }
.toc-list li { margin-bottom: .35rem; }
.toc-list a { font-size: .83rem; color: var(--text-2); text-decoration: none; transition: color var(--transition); }
.toc-list a:hover { color: var(--accent); }

/* Post body */
.post-body h2 {
  font-family: var(--font-head); font-size: 1.45rem;
  margin: 2rem 0 .75rem; color: var(--text);
  padding-top: 1rem; border-top: 1px solid var(--border);
}
.post-body h2:first-child { border-top: none; padding-top: 0; }
.post-body p { font-size: .92rem; color: var(--text-2); line-height: 1.75; margin-bottom: 1rem; }
.post-body ul { font-size: .92rem; color: var(--text-2); line-height: 1.7; margin-bottom: 1rem; padding-left: 1.5rem; }
.post-body ul li { margin-bottom: .5rem; }
.post-body a { color: var(--accent); font-weight: 500; }
.post-body strong { color: var(--text); font-weight: 700; }

/* Post table */
.post-table-wrap { overflow-x: auto; margin: 1.5rem 0; border-radius: var(--radius-sm); border: 1px solid var(--border); }
.post-table { width: 100%; border-collapse: collapse; font-size: .84rem; }
.post-table th {
  background: var(--bg); padding: .7rem 1rem; text-align: left;
  font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--text-3); border-bottom: 1.5px solid var(--border);
}
.post-table td { padding: .65rem 1rem; border-bottom: 1px solid var(--border); color: var(--text-2); }
.post-table tbody tr:last-child td { border-bottom: none; }
.post-table .highlight-row td { background: var(--bg); font-weight: 600; color: var(--text); }
.post-table .good { color: var(--accent); font-weight: 700; }
.post-table .bad { color: var(--danger); }

/* Callouts */
.callout {
  border-radius: var(--radius-sm); padding: 1rem 1.25rem;
  font-size: .88rem; line-height: 1.65; margin: 1.5rem 0;
  border-left: 4px solid;
}
.callout-info { background: var(--accent-lt); border-color: var(--accent); color: var(--text); }
.callout-cta { background: color-mix(in srgb, var(--gold) 10%, var(--bg-card)); border-color: var(--gold); color: var(--text); }
.callout a { color: var(--accent); font-weight: 600; }

/* Ad inside article */
.ad-in-article { margin: 2rem 0; border-top: none; border-bottom: none; }

/* Author box */
.author-box {
  display: flex; align-items: center; gap: 1.25rem;
  padding: 1.25rem; margin-top: 2.5rem;
}
.author-avatar {
  width: 52px; height: 52px; border-radius: 50%; flex-shrink: 0;
  background: var(--accent-lt); display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; border: 2px solid var(--accent);
}
.author-name { font-weight: 700; font-size: .88rem; color: var(--text); margin-bottom: .25rem; }
.author-bio { font-size: .8rem; color: var(--text-2); line-height: 1.5; }

/* Share */
.post-share { display: flex; align-items: center; gap: .75rem; margin-top: 1.5rem; flex-wrap: wrap; }
.share-label { font-size: .78rem; font-weight: 600; color: var(--text-3); }
.share-btn {
  font-size: .78rem; font-weight: 600; padding: .4rem .9rem;
  border: 1px solid var(--border-mid); border-radius: var(--radius-sm);
  background: var(--bg-card); color: var(--text-2);
  transition: all var(--transition);
}
.share-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-lt); }

/* Sidebar */
.post-sidebar { display: flex; flex-direction: column; gap: 1.25rem; position: sticky; top: 80px; }
.sidebar-cta { padding: 1.5rem; text-align: center; }
.sc-icon { font-size: 1.75rem; margin-bottom: .5rem; }
.sidebar-cta h3 { font-family: var(--font-head); font-size: 1.1rem; margin-bottom: .4rem; }
.sidebar-cta p { font-size: .8rem; color: var(--text-2); margin-bottom: 1rem; }
.sc-btn {
  display: inline-block; background: var(--accent); color: #fff;
  padding: .55rem 1.25rem; border-radius: var(--radius-sm); font-size: .83rem; font-weight: 600;
  text-decoration: none; transition: opacity var(--transition);
}
.sc-btn:hover { opacity: .88; text-decoration: none; }
.ad-sidebar { border: none; background: transparent; }
.sidebar-related { }
.sidebar-heading { font-family: var(--font-head); font-size: 1rem; color: var(--text); margin-bottom: .75rem; }
.related-list { display: flex; flex-direction: column; gap: .5rem; }
.related-item {
  display: flex; flex-direction: column; gap: .2rem;
  padding: .75rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--bg-card);
  text-decoration: none; color: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.related-item:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); text-decoration: none; }
.related-item p { font-size: .8rem; color: var(--text-2); line-height: 1.4; margin: 0; }

/* ══════════════════════
   BLOG RESPONSIVE
══════════════════════ */
@media (max-width: 900px) {
  .post-layout { grid-template-columns: 1fr; }
  .post-sidebar { position: static; }
  .ad-sidebar { display: none; }
}
@media (max-width: 560px) {
  .blog-grid { grid-template-columns: 1fr; }
  .nl-form { flex-direction: column; align-items: stretch; }
  .nl-input, .nl-btn { width: 100%; }
  .author-box { flex-direction: column; text-align: center; }
  .post-share { justify-content: center; }
}