/* ============================================================
   FlipCalc Pro — Landing Page Styles
   File: /var/www/flipcalc/frontend/assets/css/main.css
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,600;8..60,700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ============ TOKENS ============ */
:root {
  --navy:               #0B1F3A;
  --navy-light:         #16335C;
  --paper:              #F7F5F0;
  --paper-warm:         #F1EDE3;
  --ledger-green:       #1E5F4E;
  --ledger-green-light: #E8F0ED;
  --terracotta:         #C4622D;
  --terracotta-light:   #FBE9DF;
  --ink:                #1A1A1A;
  --gray:               #6B7280;
  --gray-light:         #E5E2DA;
  --line:               #D8D4C8;
}

/* ============ RESET ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, .serif {
  font-family: 'Source Serif 4', serif;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.mono { font-family: 'JetBrains Mono', monospace; }
a { text-decoration: none; color: inherit; }

/* ============ LAYOUT ============ */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ============ HEADER ============ */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
}
.logo-mark {
  width: 34px; height: 34px;
  background: var(--navy);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  color: var(--paper);
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--navy);
  opacity: 0.75;
  transition: opacity 0.15s;
}
.nav-links a:hover { opacity: 1; }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.lang-toggle {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  color: var(--navy);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  background: transparent;
  transition: border-color 0.15s, background 0.15s;
}
.lang-toggle:hover { border-color: var(--navy); background: var(--paper-warm); }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform 0.12s, box-shadow 0.2s, background 0.15s;
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--navy);
  color: var(--paper);
}
.btn-primary:hover { background: var(--navy-light); box-shadow: 0 4px 14px rgba(11,31,58,0.25); }
.btn-ghost {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--navy); }
.btn-terracotta {
  background: var(--terracotta);
  color: var(--paper);
}
.btn-terracotta:hover { background: #AD5526; box-shadow: 0 4px 14px rgba(196,98,45,0.3); }
.btn-block { width: 100%; padding: 13px; font-size: 15px; }
.btn-sm { padding: 8px 16px; font-size: 13px; }

/* ============ HERO ============ */
.hero {
  padding: 84px 0 96px;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}
.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ledger-green);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: '';
  display: block;
  width: 28px; height: 1px;
  background: var(--ledger-green);
}
.hero h1 {
  font-size: 52px;
  line-height: 1.08;
  color: var(--navy);
  margin-bottom: 22px;
}
.hero h1 em {
  font-style: italic;
  color: var(--ledger-green);
}
.hero p.lead {
  font-size: 17px;
  color: var(--gray);
  max-width: 480px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-bottom: 36px;
}
.hero-trust {
  display: flex;
  gap: 28px;
  font-size: 13px;
  color: var(--gray);
  font-family: 'JetBrains Mono', monospace;
}
.hero-trust strong { color: var(--navy); font-weight: 700; }

/* ============ LEDGER CALCULATOR ============ */
.ledger {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 20px 60px -20px rgba(11,31,58,0.25);
  overflow: hidden;
  position: relative;
}
.ledger::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--navy) 0%, var(--ledger-green) 50%, var(--terracotta) 100%);
}
.ledger-header {
  padding: 22px 26px 16px;
  border-bottom: 1px dashed var(--line);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.ledger-header .title {
  font-family: 'Source Serif 4', serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--navy);
}
.ledger-header .tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.ledger-body { padding: 22px 26px; }
.field-row {
  display: grid;
  grid-template-columns: 1fr 140px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-light);
  gap: 16px;
}
.field-row:last-of-type { border-bottom: none; }
.field-row label {
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
}
.field-row .sub {
  display: block;
  font-size: 12px;
  color: var(--gray);
  font-weight: 400;
  margin-top: 2px;
}
.input-wrap { position: relative; }
.input-wrap .currency {
  position: absolute;
  left: 12px; top: 50%;
  transform: translateY(-50%);
  font-family: 'JetBrains Mono', monospace;
  color: var(--gray);
  font-size: 14px;
  pointer-events: none;
}
.field-row input {
  width: 100%;
  padding: 9px 12px 9px 26px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  text-align: right;
  color: var(--navy);
  background: var(--paper);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.field-row input:focus {
  outline: none;
  border-color: var(--ledger-green);
  box-shadow: 0 0 0 3px var(--ledger-green-light);
}
.ledger-results {
  background: var(--navy);
  padding: 22px 26px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.result-cell .r-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(247,245,240,0.55);
  margin-bottom: 6px;
}
.result-cell .r-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 24px;
  font-weight: 700;
  color: var(--paper);
  transition: color 0.3s;
}
.result-cell .r-value.positive { color: #6FCF97; }
.result-cell .r-value.negative { color: #EB9486; }
.ledger-footer {
  padding: 14px 26px;
  font-size: 12px;
  color: var(--gray);
  text-align: center;
  border-top: 1px dashed var(--line);
}

/* ============ TRUST STRIP ============ */
.strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 28px 0;
  background: var(--paper-warm);
}
.strip .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.strip-item {
  font-size: 13px;
  color: var(--gray);
  display: flex;
  align-items: center;
  gap: 10px;
}
.strip-item .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ledger-green);
  flex-shrink: 0;
}

/* ============ SECTIONS ============ */
section { padding: 88px 0; }
.section-head {
  max-width: 620px;
  margin-bottom: 56px;
}
.section-head .eyebrow { color: var(--terracotta); }
.section-head .eyebrow::before { background: var(--terracotta); }
.section-head h2 {
  font-size: 36px;
  color: var(--navy);
  margin-bottom: 14px;
}
.section-head p {
  color: var(--gray);
  font-size: 16px;
}

/* ============ MODULES GRID ============ */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.module-card {
  background: #FFFFFF;
  padding: 32px 28px;
  transition: background 0.2s;
}
.module-card:hover { background: var(--paper-warm); }
.module-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--terracotta);
  font-weight: 700;
  margin-bottom: 14px;
}
.module-card h3 {
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 8px;
  font-weight: 600;
}
.module-card p {
  font-size: 14px;
  color: var(--gray);
}

/* ============ AI CALLOUT ============ */
.ai-callout {
  background: var(--navy);
  border-radius: 12px;
  padding: 56px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.ai-callout::after {
  content: '';
  position: absolute;
  right: -80px; top: -80px;
  width: 240px; height: 240px;
  border: 1px solid rgba(247,245,240,0.08);
  border-radius: 50%;
}
.ai-callout::before {
  content: '';
  position: absolute;
  right: -40px; top: -40px;
  width: 160px; height: 160px;
  border: 1px solid rgba(247,245,240,0.12);
  border-radius: 50%;
}
.ai-callout .eyebrow { color: var(--terracotta); }
.ai-callout .eyebrow::before { background: var(--terracotta); }
.ai-callout h2 {
  font-size: 30px;
  color: var(--paper);
  margin-bottom: 16px;
}
.ai-callout p {
  color: rgba(247,245,240,0.7);
  font-size: 15px;
  margin-bottom: 24px;
}
.ai-sample {
  background: rgba(247,245,240,0.06);
  border: 1px solid rgba(247,245,240,0.12);
  border-radius: 8px;
  padding: 22px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: rgba(247,245,240,0.85);
  line-height: 1.9;
}
.ai-sample .line { display: flex; gap: 10px; margin-bottom: 8px; }
.ai-sample .line:last-child { margin-bottom: 0; }
.ai-sample .check { color: #6FCF97; flex-shrink: 0; }
.ai-sample .warn  { color: #F2C572; flex-shrink: 0; }

/* ============ PRICING ============ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.plan-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px 24px;
  background: #FFFFFF;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, transform 0.2s;
}
.plan-card:hover { transform: translateY(-4px); }
.plan-card.featured {
  border-color: var(--ledger-green);
  box-shadow: 0 12px 32px -12px rgba(30,95,78,0.3);
  position: relative;
}
.plan-card.featured::before {
  content: attr(data-badge);
  position: absolute;
  top: -11px; left: 24px;
  background: var(--ledger-green);
  color: var(--paper);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
}
.plan-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray);
  margin-bottom: 12px;
}
.plan-price {
  font-family: 'Source Serif 4', serif;
  font-size: 38px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}
.plan-price span {
  font-size: 14px;
  font-weight: 400;
  color: var(--gray);
  font-family: 'Inter', sans-serif;
}
.plan-features {
  list-style: none;
  margin: 22px 0 28px;
  flex: 1;
}
.plan-features li {
  font-size: 13.5px;
  color: var(--ink);
  padding: 7px 0;
  display: flex;
  gap: 10px;
  border-bottom: 1px solid var(--gray-light);
}
.plan-features li:last-child { border-bottom: none; }
.plan-features li::before {
  content: '✓';
  color: var(--ledger-green);
  font-weight: 700;
  flex-shrink: 0;
}

/* Plan card dual-action buttons */
.plan-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: auto;
}
.plan-actions .btn { width: 100%; padding: 11px; font-size: 14px; }
.plan-actions .btn-try {
  background: transparent;
  color: var(--ledger-green);
  border: 1px solid var(--ledger-green-light);
  font-size: 13px;
  padding: 9px;
}
.plan-actions .btn-try:hover {
  background: var(--ledger-green-light);
  border-color: var(--ledger-green);
}

/* ============ SOLUTIONS TABS ============ */
.solutions-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--line);
}
.solution-tab {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray);
  background: none;
  border: none;
  padding: 12px 4px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-right: 28px;
  transition: color 0.15s, border-color 0.15s;
}
.solution-tab:hover { color: var(--navy); }
.solution-tab.active {
  color: var(--navy);
  border-bottom-color: var(--terracotta);
}
.solution-panel { display: none; }
.solution-panel.active {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
  align-items: center;
}
.solution-info .solution-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--terracotta);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.solution-info h3 {
  font-size: 26px;
  color: var(--navy);
  margin-bottom: 12px;
}
.solution-info p {
  color: var(--gray);
  font-size: 15px;
  margin-bottom: 20px;
}
.solution-features { list-style: none; }
.solution-features li {
  font-size: 14px;
  color: var(--ink);
  padding: 9px 0;
  display: flex;
  gap: 10px;
  border-bottom: 1px solid var(--gray-light);
}
.solution-features li:last-child { border-bottom: none; }
.solution-features li::before {
  content: '✓';
  color: var(--ledger-green);
  font-weight: 700;
  flex-shrink: 0;
}
.solution-visual {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px;
  box-shadow: 0 16px 40px -16px rgba(11,31,58,0.18);
}
.solution-visual .sv-header {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray);
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line);
}
.sv-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  font-size: 13.5px;
  border-bottom: 1px solid var(--gray-light);
}
.sv-row:last-child { border-bottom: none; }
.sv-row .sv-label { color: var(--ink); font-weight: 500; }
.sv-row .sv-value { font-family: 'JetBrains Mono', monospace; color: var(--navy); font-weight: 600; }
.sv-row .sv-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 700;
}
.sv-badge.green      { background: var(--ledger-green-light); color: var(--ledger-green); }
.sv-badge.terracotta { background: var(--terracotta-light);   color: var(--terracotta); }
.sv-bar-track {
  background: var(--gray-light);
  border-radius: 4px;
  height: 8px;
  flex: 1;
  margin: 0 12px;
  overflow: hidden;
}
.sv-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--ledger-green);
}

/* ============ HOW IT WORKS ============ */
.steps { display: flex; flex-direction: column; }
.step {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.step:first-child { padding-top: 0; }
.step:last-child  { border-bottom: none; padding-bottom: 0; }
.step-num {
  font-family: 'Source Serif 4', serif;
  font-size: 42px;
  font-weight: 700;
  color: var(--gray-light);
  line-height: 1;
}
.step-content h3 {
  font-size: 20px;
  color: var(--navy);
  margin-bottom: 8px;
}
.step-content p {
  color: var(--gray);
  font-size: 15px;
  max-width: 540px;
}
.step-content .step-modules {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.step-modules span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ledger-green);
  background: var(--ledger-green-light);
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 600;
}

/* ============ CHANGELOG ============ */
.changelog-list { display: flex; flex-direction: column; }
.changelog-entry {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.changelog-entry:last-child { border-bottom: none; }
.changelog-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.changelog-version {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
}
.changelog-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--gray);
}
.changelog-content h3 {
  font-size: 17px;
  color: var(--navy);
  margin-bottom: 8px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
}
.changelog-content ul { list-style: none; }
.changelog-content li {
  font-size: 14px;
  color: var(--gray);
  padding: 4px 0;
  display: flex;
  gap: 10px;
}
.changelog-content li .tag-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 4px;
  flex-shrink: 0;
  height: fit-content;
  margin-top: 2px;
}
.tag-badge.new     { background: var(--ledger-green-light); color: var(--ledger-green); }
.tag-badge.fix     { background: var(--terracotta-light);   color: var(--terracotta); }
.tag-badge.improve { background: #E5EAF5;                   color: var(--navy); }

/* ============ FOOTER ============ */
footer {
  background: var(--navy);
  color: rgba(247,245,240,0.6);
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--paper);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 14px;
  font-family: 'Inter', sans-serif;
}
.footer-logo .logo-mark { background: var(--terracotta); }
footer p { font-size: 13.5px; max-width: 280px; }
.footer-col h4 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(247,245,240,0.4);
  margin-bottom: 14px;
}
.footer-col a {
  display: block;
  font-size: 13.5px;
  padding: 5px 0;
  color: rgba(247,245,240,0.7);
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--paper); }
.footer-bottom {
  border-top: 1px solid rgba(247,245,240,0.1);
  padding-top: 24px;
  font-size: 12.5px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============ AUTH MODAL ============ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11,31,58,0.55);
  backdrop-filter: blur(3px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: #FFFFFF;
  border-radius: 12px;
  max-width: 420px;
  width: 100%;
  padding: 36px;
  position: relative;
  box-shadow: 0 30px 80px -20px rgba(11,31,58,0.4);
}
.modal-close {
  position: absolute;
  top: 18px; right: 18px;
  background: none;
  border: none;
  font-size: 20px;
  color: var(--gray);
  cursor: pointer;
  line-height: 1;
  padding: 4px;
}
.modal-close:hover { color: var(--navy); }
.modal h3 {
  font-size: 24px;
  color: var(--navy);
  margin-bottom: 6px;
}
.modal .modal-sub {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 26px;
}
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}
.form-group input {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  background: var(--paper);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-group input:focus {
  outline: none;
  border-color: var(--ledger-green);
  box-shadow: 0 0 0 3px var(--ledger-green-light);
}
.modal-switch {
  text-align: center;
  font-size: 13.5px;
  color: var(--gray);
  margin-top: 18px;
}
.modal-switch a { color: var(--ledger-green); font-weight: 600; }
.modal-error {
  background: var(--terracotta-light);
  color: var(--terracotta);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}
.modal-error.show { display: block; }
.modal-success {
  background: var(--ledger-green-light);
  color: var(--ledger-green);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}
.modal-success.show { display: block; }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero h1 { font-size: 38px; }
  .hero-trust { flex-wrap: wrap; gap: 16px; }
  .modules-grid { grid-template-columns: 1fr; }
  .ai-callout { grid-template-columns: 1fr; padding: 36px 28px; }
  .pricing-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .solution-panel.active { grid-template-columns: 1fr; gap: 32px; }
  .step { grid-template-columns: 60px 1fr; gap: 20px; }
  .step-num { font-size: 32px; }
  .changelog-entry { grid-template-columns: 1fr; gap: 10px; }
}
@media (max-width: 560px) {
  .hero h1 { font-size: 30px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .ledger-results { grid-template-columns: 1fr; gap: 14px; }
  .pricing-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .field-row { grid-template-columns: 1fr; gap: 8px; }
  .field-row input { text-align: left; }
  .solutions-tabs { flex-wrap: wrap; gap: 0; }
  .solution-tab { margin-right: 16px; font-size: 12px; }
}

/* ============ ACCESSIBILITY ============ */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--ledger-green);
  outline-offset: 2px;
}