:root {
  --green: #16a34a;
  --green-light: #22c55e;
  --green-bg: #f0fdf4;
  --green-border: #bbf7d0;
  --red: #dc2626;
  --red-light: #ef4444;
  --red-bg: #fef2f2;
  --red-border: #fecaca;
  --blue: #2563eb;
  --blue-bg: #eff6ff;
  --orange: #ea580c;
  --orange-bg: #fff7ed;
  --purple: #7c3aed;
  --purple-bg: #f5f3ff;
  --ink: #0f172a;
  --ink2: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --card: #ffffff;
  --page-bg: #f8fafc;
  --radius: 16px;
  --radius-sm: 10px;
  --handwriting: Georgia, 'Times New Roman', serif;
  --body-font: 'Plus Jakarta Sans', sans-serif;
  --shadow: 0 2px 16px rgba(0,0,0,.07);
  --shadow-hover: 0 8px 32px rgba(0,0,0,.13);
}

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

body {
  font-family: var(--body-font);
  background: var(--page-bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.7;
}

.page { max-width: 860px; margin: 0 auto; padding: 0 16px 60px; }

/* ── HEADER ── */
.site-header {
  background: linear-gradient(135deg, #14532d 0%, #16a34a 55%, #22c55e 100%);
  color: #fff;
  padding: 12px 16px 14px;
  border-radius: 0 0 20px 20px;
  margin-bottom: 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.site-header::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
/* ── HOME + TITLE single horizontal row ── */
.header-top-row {
  display: flex; align-items: center;
  gap: 10px; position: relative; z-index: 1;
  margin-bottom: 6px;
  /* Center the title visually even with home icon on left */
  justify-content: center;
}
.home-link {
  color: rgba(255,255,255,.85); text-decoration: none;
  font-size: 20px; line-height: 1;
  flex-shrink: 0;
}
.header-title {
  font-size: clamp(1rem, 3.5vw, 1.5rem);
  font-weight: 800; letter-spacing: -0.3px;
  white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis;
}
.header-tagline {
  font-size: .82rem; opacity: .88; margin-top: 4px;
  position: relative; z-index: 1;
}
.header-badges {
  display: flex; gap: 6px; justify-content: center; margin-top: 8px;
  flex-wrap: wrap; position: relative; z-index: 1;
}
.badge {
  background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.3);
  border-radius: 20px; padding: 2px 10px;
  font-size: .72rem; font-weight: 600; letter-spacing: .3px;
}

/* ── CARDS ── */
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 24px;
  margin-bottom: 22px;
  border: 1px solid var(--border);
}

/* ── CALCULATOR TOOL ── */
.tool-label {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.25rem; font-weight: 800; margin-bottom: 20px; color: var(--ink2);
}
.tool-label .emoji { font-size: 1.5rem; }

.calc-mode-tabs {
  display: flex; gap: 6px; flex-wrap: wrap;
  background: var(--page-bg); border-radius: 12px;
  padding: 5px; margin-bottom: 22px;
}
.mode-tab {
  flex: 1; min-width: 120px;
  padding: 9px 10px; border: none; cursor: pointer;
  border-radius: 9px; font-family: var(--body-font);
  font-size: .82rem; font-weight: 600;
  background: transparent; color: var(--muted);
  transition: all .2s;
}
.mode-tab.active {
  background: var(--green); color: #fff;
  box-shadow: 0 2px 8px rgba(22,163,74,.35);
}
.mode-tab:hover:not(.active) { background: var(--green-bg); color: var(--green); }

.input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px; margin-bottom: 18px;
}
@media (max-width: 520px) { .input-grid { grid-template-columns: 1fr; } }

/* ══════════════════════════════════════
   10-BREAKPOINT RESPONSIVE SYSTEM
══════════════════════════════════════ */

/* 1. Extra-small phones: 320px */
@media (max-width: 320px) {
  .page { padding: 0 10px 40px; }
  .card { padding: 14px 12px; }
  .site-header { padding: 10px 12px 12px; border-radius: 0 0 14px 14px; }
  .header-title { font-size: .88rem; white-space: normal; }
  .header-top-row { gap: 7px; }
  .home-link { font-size: 16px; }
  .header-tagline { font-size: .72rem; }
  .badge { font-size: .65rem; padding: 2px 7px; }
  .header-badges { gap: 4px; }
  .calc-mode-tabs { flex-direction: column; }
  .mode-tab { min-width: unset; }
  .hw { font-size: 1.3rem; }
  .hw-box { font-size: 1.25rem; padding: 3px 10px; }
  .frac { font-size: 1.1rem; }
  .result-stats { grid-template-columns: 1fr; }
  .stat-cell { border-right: none; border-bottom: 1px solid var(--border); }
  .stat-cell:last-child { border-bottom: none; }
  .eg-grid { grid-template-columns: 1fr; }
  .concept-table { font-size: .75rem; }
  .concept-table th, .concept-table td { padding: 7px 8px; }
}

/* 2. Small phones: 360px */
@media (min-width: 321px) and (max-width: 360px) {
  .page { padding: 0 12px 44px; }
  .card { padding: 16px 14px; }
  .site-header { padding: 10px 14px 12px; }
  .header-title { font-size: .95rem; white-space: normal; }
  .header-top-row { gap: 8px; }
  .calc-mode-tabs { flex-direction: column; }
  .mode-tab { min-width: unset; }
  .hw { font-size: 1.4rem; }
  .hw-box { font-size: 1.3rem; }
  .result-stats { grid-template-columns: 1fr 1fr; }
  .eg-grid { grid-template-columns: 1fr; }
}

/* 3. Medium phones: 390px (iPhone 14) */
@media (min-width: 361px) and (max-width: 414px) {
  .page { padding: 0 14px 48px; }
  .card { padding: 18px 16px; }
  .site-header { padding: 11px 14px 13px; }
  .header-title { font-size: 1rem; }
  .calc-mode-tabs { flex-wrap: wrap; }
  .mode-tab { flex: 0 0 calc(50% - 3px); }
  .result-stats { grid-template-columns: 1fr 1fr; }
  .eg-grid { grid-template-columns: 1fr; }
}

/* 4. Large phones: 430px (iPhone Pro Max) */
@media (min-width: 415px) and (max-width: 480px) {
  .page { padding: 0 14px 50px; }
  .card { padding: 20px 18px; }
  .site-header { padding: 12px 16px 13px; }
  .header-title { font-size: 1.15rem; }
  .calc-mode-tabs { flex-wrap: wrap; }
  .mode-tab { flex: 0 0 calc(50% - 3px); }
  .result-stats { grid-template-columns: 1fr 1fr; }
  .eg-grid { grid-template-columns: 1fr 1fr; }
}

/* 5. Phablets: 520px */
@media (min-width: 481px) and (max-width: 560px) {
  .page { padding: 0 16px 52px; }
  .card { padding: 22px 20px; }
  .result-stats { grid-template-columns: repeat(2, 1fr); }
  .eg-grid { grid-template-columns: 1fr 1fr; }
}

/* 6. Small tablets / large phones: 640px */
@media (min-width: 561px) and (max-width: 640px) {
  .page { padding: 0 16px 54px; }
  .input-grid { grid-template-columns: 1fr 1fr; }
  .result-stats { grid-template-columns: repeat(2, 1fr); }
}

/* 7. Tablets portrait: 768px */
@media (min-width: 641px) and (max-width: 768px) {
  .page { padding: 0 20px 56px; }
  .input-grid { grid-template-columns: 1fr 1fr; }
  .calc-mode-tabs { flex-wrap: nowrap; }
  .mode-tab { flex: 1; min-width: unset; font-size: .8rem; }
  .result-stats { grid-template-columns: repeat(4, 1fr); }
  .eg-grid { grid-template-columns: 1fr 1fr; }
}

/* 8. Tablets landscape / small laptops: 1024px */
@media (min-width: 769px) and (max-width: 1024px) {
  .page { max-width: 820px; padding: 0 24px 60px; }
  .calc-mode-tabs { flex-wrap: nowrap; }
  .mode-tab { flex: 1; }
  .result-stats { grid-template-columns: repeat(4, 1fr); }
  .eg-grid { grid-template-columns: 1fr 1fr; }
}

/* 9. Laptops / desktops: 1280px */
@media (min-width: 1025px) and (max-width: 1280px) {
  .page { max-width: 860px; }
  .result-stats { grid-template-columns: repeat(4, 1fr); }
}

/* 10. Wide screens: 1440px+ */
@media (min-width: 1281px) {
  .page { max-width: 900px; }
  .card { padding: 30px 28px; }
  .result-stats { grid-template-columns: repeat(4, 1fr); }
  .header-title { font-size: 1.6rem; }
}

/* Universal mobile helper — ≤520px stat cells stacked */
@media (max-width: 520px) {
  .stat-cell { border-right: none; border-bottom: 1px solid var(--border); }
  .stat-cell:last-child { border-bottom: none; }
}

.field label {
  display: block; font-size: .82rem; font-weight: 700;
  color: var(--muted); margin-bottom: 5px; letter-spacing: .3px;
  text-transform: uppercase;
}
.field input, .field select {
  width: 100%; padding: 12px 14px;
  border: 2px solid var(--border); border-radius: var(--radius-sm);
  font-family: var(--body-font); font-size: 1rem; font-weight: 600;
  color: var(--ink); background: var(--card);
  transition: border-color .2s, box-shadow .2s; outline: none;
}
.field input:focus, .field select:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(22,163,74,.15);
}
.field small { font-size: .75rem; color: var(--muted); margin-top: 4px; display: block; }

.calc-btn {
  width: 100%; padding: 14px;
  background: linear-gradient(135deg, #16a34a, #22c55e);
  color: #fff; border: none; border-radius: var(--radius-sm);
  font-family: var(--body-font); font-size: 1rem; font-weight: 800;
  cursor: pointer; letter-spacing: .5px;
  box-shadow: 0 4px 16px rgba(22,163,74,.35);
  transition: transform .15s, box-shadow .15s;
}
.calc-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 22px rgba(22,163,74,.45); }
.calc-btn:active { transform: translateY(0); }

/* ── RESULT BOX ── */
.result-box {
  display: none; margin-top: 20px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.result-box.visible { display: block; animation: fadeIn .4s ease; }
@keyframes fadeIn { from { opacity:0; transform: translateY(8px); } to { opacity:1; transform: none; } }

.result-header {
  padding: 16px 20px;
  display: flex; align-items: center; gap: 12px;
}
.result-header.profit { background: var(--green-bg); border: 2px solid var(--green-border); border-bottom: none; }
.result-header.loss { background: var(--red-bg); border: 2px solid var(--red-border); border-bottom: none; }

.result-icon { font-size: 2rem; line-height: 1; }
.result-verdict {
  font-size: 1.4rem; font-weight: 800;
}
.result-header.profit .result-verdict { color: var(--green); }
.result-header.loss .result-verdict { color: var(--red); }

.result-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 2px solid var(--border); border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  overflow: hidden;
}
.stat-cell {
  padding: 14px; text-align: center;
  border-right: 1px solid var(--border);
}
.stat-cell:last-child { border-right: none; }
.stat-label { font-size: .75rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.stat-val {
  font-size: 1.35rem; font-weight: 800; margin-top: 4px;
}
.stat-val.green { color: var(--green); }
.stat-val.red { color: var(--red); }
.stat-val.blue { color: var(--blue); }

/* ── AD SLOTS ── */
.ad-slot {
  background: #f1f5f9; border: 2px dashed #cbd5e1;
  border-radius: var(--radius-sm); padding: 20px;
  text-align: center; color: var(--muted);
  font-size: .8rem; min-height: 90px;
  display: flex; align-items: center; justify-content: center;
  margin: 22px 0;
}

/* ── SECTION HEADINGS ── */
.section-title {
  font-size: 1.3rem; font-weight: 800; color: var(--ink2);
  margin-bottom: 14px; display: flex; align-items: center; gap: 8px;
}
.section-title .tag {
  font-size: .7rem; font-weight: 700; padding: 3px 9px;
  border-radius: 20px; letter-spacing: .5px;
}
.tag.green { background: var(--green-bg); color: var(--green); }
.tag.blue { background: var(--blue-bg); color: var(--blue); }
.tag.orange { background: var(--orange-bg); color: var(--orange); }
.tag.purple { background: var(--purple-bg); color: var(--purple); }

/* ── SOLUTION METHODS TABS ── */
.method-tabs-wrap {
  margin-top: 6px;
}
.method-tabs {
  display: flex; gap: 0; border-bottom: 2px solid var(--border);
  margin-bottom: 20px; overflow-x: auto; padding-bottom: 0;
}
.m-tab {
  padding: 10px 18px; border: none; background: none; cursor: pointer;
  font-family: var(--body-font); font-size: .85rem; font-weight: 700;
  color: var(--muted); border-bottom: 3px solid transparent;
  margin-bottom: -2px; white-space: nowrap;
  transition: color .2s, border-color .2s;
}
.m-tab.active { color: var(--blue); border-bottom-color: var(--blue); }
.m-tab:hover:not(.active) { color: var(--ink); }
.m-tab-sub { font-size: .72rem; font-weight: 500; display: block; opacity: .8; margin-top: 1px; }
.m-tab-rank {
  display: inline-block; font-size: .6rem; font-weight: 800;
  background: var(--green); color: #fff; border-radius: 99px;
  padding: 1px 5px; margin-left: 4px; vertical-align: middle;
  letter-spacing: .02em; line-height: 1.4;
}
.m-tab-rank.rank1 { background: #f59e0b; }
.m-tab-rank.rank2 { background: var(--blue); }
.m-tab-rank.rank3 { background: var(--green); }
.m-tab { transition: color .2s, border-color .2s, order .3s; }

.method-panel { display: none; }
.method-panel.active { display: block; animation: fadeIn .3s; }

/* ── STEP BLOCKS ── */
.step-block {
  background: #fafbfc; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); padding: 18px 20px;
  margin-bottom: 14px; position: relative;
}
.step-block::before {
  content: attr(data-step);
  position: absolute; top: -12px; left: 16px;
  background: var(--green); color: #fff;
  font-size: .72rem; font-weight: 800;
  padding: 2px 10px; border-radius: 20px;
  letter-spacing: .5px;
}
.step-title {
  font-weight: 800; color: var(--ink2);
  font-size: .95rem; margin-bottom: 10px;
}

/* ── HANDWRITING MATH ── */
.hw-line {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 8px; margin: 10px 0;
}
.hw { font-family: var(--handwriting); font-size: 1.7rem; font-weight: 600; }
.hw.red { color: var(--red); }
.hw.green { color: var(--green); }
.hw.blue { color: var(--blue); }
.hw.purple { color: var(--purple); }
.hw.orange { color: var(--orange); }
.hw.dark { color: var(--ink); }

.hw-box {
  background: #fff; border: 2px solid var(--border);
  border-radius: 10px; padding: 4px 14px;
  font-family: var(--handwriting); font-size: 1.65rem;
  font-weight: 600; display: inline-flex; align-items: center;
}
.hw-box.red { border-color: var(--red-border); color: var(--red); }
.hw-box.green { border-color: var(--green-border); color: var(--green); }
.hw-box.blue { border-color: #bfdbfe; color: var(--blue); }
.hw-box.orange { border-color: #fed7aa; color: var(--orange); }

/* fraction */
.frac {
  display: inline-flex; flex-direction: column;
  align-items: center; font-family: var(--handwriting);
  font-size: 1.4rem; vertical-align: middle; line-height: 1.1;
}
.frac .bar { width: 100%; height: 2px; background: currentColor; margin: 2px 0; }
.frac .top, .frac .bot { padding: 0 3px; }

/* sub/sup in handwriting */
.hw sub { font-size: 1rem; vertical-align: sub; }
.hw sup { font-size: 1rem; vertical-align: super; }

/* ── FORMULA CARD ── */
.formula-card {
  background: var(--green-bg); border: 2px solid var(--green-border);
  border-radius: var(--radius-sm); padding: 18px 20px;
  margin: 14px 0;
}
.formula-card .hw-line { margin: 6px 0; }

.formula-card-red {
  background: var(--red-bg); border: 2px solid var(--red-border);
}
.formula-card-blue {
  background: var(--blue-bg); border: 2px solid #bfdbfe;
}
.formula-card-orange {
  background: var(--orange-bg); border: 2px solid #fed7aa;
}
.formula-card-purple {
  background: var(--purple-bg); border: 2px solid #ddd6fe;
}

/* ── CONCEPT TABLE ── */
.concept-table {
  width: 100%; border-collapse: collapse;
  font-size: .88rem; margin: 14px 0;
}
.concept-table th {
  background: var(--green); color: #fff !important;
  padding: 10px 14px; font-weight: 700;
  text-align: left; font-size: .8rem; letter-spacing: .4px;
}
.concept-table td {
  padding: 10px 14px; border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.concept-table tr:last-child td { border-bottom: none; }
.concept-table tr:nth-child(even) td { background: #f8fafc; }

/* ── QUICK NAV ── */
.quick-nav-card {
  background: var(--blue-bg); border: 1.5px solid #bfdbfe;
  border-radius: var(--radius-sm); padding: 18px 20px;
}
.quick-nav-title { font-weight: 800; color: var(--blue); margin-bottom: 12px; font-size: .95rem; }
.quick-nav-links {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.quick-nav-links a {
  background: #fff; border: 1.5px solid #bfdbfe;
  border-radius: 20px; padding: 4px 14px;
  font-size: .8rem; font-weight: 600; color: var(--blue);
  text-decoration: none; transition: background .15s, color .15s;
}
.quick-nav-links a:hover { background: var(--blue); color: #fff; }

/* ── FAQ ── */
.faq-item {
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  margin-bottom: 10px; overflow: hidden;
}
.faq-q {
  padding: 15px 18px; font-weight: 700; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between;
  font-size: .93rem; color: var(--ink2);
  user-select: none; transition: background .15s;
}
.faq-q:hover { background: var(--green-bg); }
.faq-q .arr { font-size: 1rem; transition: transform .25s; color: var(--green); }
.faq-item.open .faq-q { background: var(--green-bg); }
.faq-item.open .arr { transform: rotate(180deg); }
.faq-a {
  display: none; padding: 0 18px 16px;
  font-size: .9rem; color: var(--muted); line-height: 1.7;
  background: var(--green-bg);
}
.faq-item.open .faq-a { display: block; }

/* ── TRICK BOX ── */
.trick-box {
  background: linear-gradient(135deg, #fef3c7 0%, #fffbeb 100%);
  border: 2px solid #fcd34d; border-radius: var(--radius-sm);
  padding: 18px 20px; margin: 14px 0;
}
.trick-title { font-weight: 800; color: #92400e; margin-bottom: 8px; display: flex; align-items: center; gap: 6px; }

/* ── INFO ROW ── */
.info-chips {
  display: flex; flex-wrap: wrap; gap: 10px; margin: 14px 0;
}
.info-chip {
  background: #fff; border: 1.5px solid var(--border);
  border-radius: 10px; padding: 12px 16px; flex: 1; min-width: 140px;
  text-align: center;
}
.info-chip .chip-icon { font-size: 1.5rem; }
.info-chip .chip-label { font-size: .75rem; color: var(--muted); font-weight: 600; margin-top: 4px; }
.info-chip .chip-val { font-size: 1rem; font-weight: 800; color: var(--ink2); }

/* ── EXAMPLES GRID ── */
.eg-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 14px; margin: 14px 0;
}
@media (max-width: 540px) { .eg-grid { grid-template-columns: 1fr; } }
.eg-card {
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  padding: 16px; cursor: pointer; transition: box-shadow .2s, border-color .2s;
}
.eg-card:hover { box-shadow: var(--shadow-hover); border-color: var(--green); }
.eg-card .eg-title { font-weight: 700; font-size: .88rem; margin-bottom: 6px; color: var(--ink2); }
.eg-card .eg-tag {
  font-size: .72rem; font-weight: 700; padding: 2px 8px;
  border-radius: 12px; display: inline-block; margin-bottom: 8px;
}
.eg-card .eg-tag.profit { background: var(--green-bg); color: var(--green); }
.eg-card .eg-tag.loss { background: var(--red-bg); color: var(--red); }
.eg-card .eg-nums { font-size: .83rem; color: var(--muted); }
.eg-card .eg-ans { font-weight: 800; font-size: 1rem; margin-top: 6px; }
.eg-card .eg-ans.profit { color: var(--green); }
.eg-card .eg-ans.loss { color: var(--red); }

/* ── TEACHER NOTE ── */
.teacher-note {
  background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);
  border-left: 4px solid var(--blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 18px; margin: 14px 0;
  font-size: .9rem; color: var(--ink2);
}
.teacher-note strong { color: var(--blue); }

/* ── CONTENT SECTION ── */
.content-section { margin-bottom: 22px; }
.content-section h2 {
  font-size: 1.2rem; font-weight: 800; color: var(--ink2);
  margin-bottom: 12px; padding-bottom: 8px;
  border-bottom: 2px solid var(--green-border);
  display: flex; align-items: center; gap: 8px;
}
.content-section h3 {
  font-size: 1rem; font-weight: 700; color: var(--green);
  margin: 14px 0 6px;
}
.content-section p { margin-bottom: 10px; font-size: .93rem; line-height: 1.75; }
.content-section ul, .content-section ol {
  padding-left: 22px; margin-bottom: 10px;
}
.content-section li { margin-bottom: 5px; font-size: .92rem; line-height: 1.6; }

/* ── FOOTER ── */
footer {
  background: var(--ink2); color: rgba(255,255,255,.7);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 20px 24px; margin-top: 30px; text-align: center;
  font-size: .82rem;
}
footer nav { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-bottom: 10px; }
footer nav a { color: rgba(255,255,255,.7); text-decoration: none; }
footer nav a:hover { color: #fff; }
footer p { opacity: .55; font-size: .78rem; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 6px; }

/* ── PAGE PAGINATION ── */
.page-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 32px 0 10px;
  flex-wrap: wrap;
}
.page-pagination a,
.page-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  padding: 0 10px;
  border-radius: 10px;
  font-family: var(--body-font);
  font-size: .92rem;
  font-weight: 700;
  text-decoration: none;
  transition: all .18s;
  border: 2px solid var(--border);
}
.page-pagination a {
  background: var(--card);
  color: var(--ink2);
}
.page-pagination a:hover {
  border-color: var(--green);
  color: var(--green);
  background: var(--green-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(22,163,74,.18);
}
.page-pagination span.current {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
  box-shadow: 0 3px 12px rgba(22,163,74,.35);
}
.page-pagination a.pg-arrow {
  font-size: .8rem;
  color: var(--muted);
  border-style: dashed;
}
.page-pagination a.pg-arrow:hover {
  color: var(--green);
  border-color: var(--green);
  border-style: solid;
}
.pg-label-row {
  text-align: center;
  font-size: .78rem;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: .2px;
}

/* ── SHARE BUTTONS ── */
.share-row {
  display: flex; gap: 8px; flex-wrap: nowrap;
  margin-top: 16px; width: 100%;
}
.share-btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; padding: 9px 16px; border-radius: 8px;
  font-weight: 700; font-size: .82rem; text-decoration: none;
  border: none; cursor: pointer; font-family: var(--body-font);
  transition: transform .15s, box-shadow .15s; flex: 1;
  white-space: nowrap; color: #fff;
}
.share-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 14px rgba(0,0,0,.18); }
.share-btn .share-icon { font-weight: 900; font-size: .9rem; }
.share-btn.wa  { background: #25d366; }
.share-btn.tg  { background: #229ed9; }
.share-btn.fb  { background: #1877f2; }
.share-btn.pt  { background: #e60023; }

/* Small screens: show only initials */
@media (max-width: 480px) {
  .share-btn { padding: 9px 0; border-radius: 8px; }
  .share-btn .share-label { display: none; }
  .share-btn .share-icon { font-size: 1rem; font-weight: 900; }
}
/* ── SITE NAV ── */
.site-nav {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
  margin-bottom: 18px;
}
.site-nav ul {
  max-width: 860px; margin: 0 auto;
  display: flex; gap: 0; list-style: none; padding: 0;
}
.site-nav a {
  display: block; padding: 10px 16px;
  font-size: .85rem; font-weight: 700;
  color: var(--ink2); text-decoration: none;
  border-bottom: 3px solid transparent;
  transition: color .2s, border-color .2s;
}
.site-nav a:hover { color: var(--green); border-bottom-color: var(--green); }
.site-nav a.active { color: var(--green); border-bottom-color: var(--green); }
@media (max-width: 360px) {
  .site-nav a { padding: 9px 10px; font-size: .78rem; }
}

/* ── PAGE H1 ── */
.page-h1 {
  font-size: clamp(1.15rem, 3.5vw, 1.6rem);
  font-weight: 800; color: var(--ink2);
  line-height: 1.3; margin-bottom: 18px;
  letter-spacing: -0.3px;
}