/* ── Variables ── */
:root {
  --epoch-green: #00A651;
  --epoch-green-dark: #007d3c;
  --epoch-green-light: #e6f7ee;
  --text-primary: #1a1a2e;
  --text-secondary: #5a6474;
  --bg-page: #f4f6f9;
  --bg-card: #ffffff;
  --border: #e0e6ed;
  --shadow-sm: 0 2px 8px rgba(0,0,0,.07);
  --shadow-md: 0 6px 24px rgba(0,0,0,.10);
  --radius: 12px;
  --radius-sm: 8px;
  --font: 'Inter', 'Segoe UI', system-ui, sans-serif;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg-page);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Topbar ── */
.topbar {
  background: var(--epoch-green);
  padding: 6px 32px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 6px;
}
.topbar .lang-label {
  color: rgba(255,255,255,.75);
  font-size: 12px;
  margin-right: 4px;
}
.lang-btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,.35);
  color: rgba(255,255,255,.85);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 20px;
  cursor: pointer;
  transition: all .2s;
  letter-spacing: .5px;
}
.lang-btn:hover { background: rgba(255,255,255,.2); color: #fff; }
.lang-btn.active { background: #fff; color: var(--epoch-green); border-color: #fff; }

/* ── Header / Nav ── */
header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.header-logo-mark {
  background: #fff;
  border-radius: 12px;
  padding: 6px 14px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  box-shadow: 0 2px 6px rgba(0,0,0,.10), 0 1px 0 rgba(255,255,255,.6) inset;
  transition: transform .15s ease, box-shadow .15s ease;
}
.header-brand:hover .header-logo-mark {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,.18);
}
.header-logo-mark img {
  height: 32px;
  width: auto;
  display: block;
}
/* Compatibility — older pages may still use these */
.header-logo { height: 40px; width: auto; }
.header-brand-text { display: flex; flex-direction: column; }
.brand-name {
  font-size: 18px; font-weight: 700;
  color: var(--epoch-green); line-height: 1.2;
}
.brand-subtitle { font-size: 11px; color: var(--text-secondary); font-weight: 400; }

/* Orange "Pal" chip */
.brand-pal {
  display: inline-flex;
  align-items: center;
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 1px;
  background: linear-gradient(135deg, #F4A24A 0%, #D97706 100%);
  color: #fff;
  padding: 6px 12px;
  border-radius: 8px;
  text-transform: uppercase;
  box-shadow: 0 2px 6px rgba(217,103,16,.35);
  text-shadow: 0 1px 0 rgba(0,0,0,.08);
}
/* Version chip — dark pill, dynamically injected */
.brand-version {
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: .3px;
  color: var(--text-secondary);
  background: #f0f3f7;
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 999px;
  font-family: 'SF Mono', Monaco, Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}

/* User widget (top-right corner of the topbar) */
.user-widget {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: 14px;
  color: rgba(255,255,255,.95);
  font-size: 12px;
  font-weight: 500;
}
.user-widget .user-name {
  white-space: nowrap;
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.user-widget a, .user-widget button {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 14px;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background .2s;
}
.user-widget a:hover, .user-widget button:hover { background: rgba(255,255,255,.25); }
.topbar { justify-content: space-between; }
.topbar-right { display: inline-flex; align-items: center; gap: 6px; }
nav {
  display: flex;
  gap: 4px;
}
.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all .2s;
}
.nav-link:hover, .nav-link.active {
  background: var(--epoch-green-light);
  color: var(--epoch-green-dark);
}

/* ── Hero ── */
.hero {
  background: linear-gradient(135deg, var(--epoch-green) 0%, var(--epoch-green-dark) 100%);
  color: #fff;
  padding: 72px 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::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='0.04'%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");
}
.hero-content { position: relative; max-width: 700px; margin: 0 auto; }
.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.15;
}
.hero p {
  font-size: 17px;
  opacity: .88;
  line-height: 1.6;
  max-width: 560px;
  margin: 0 auto;
}

/* ── Main ── */
main { flex: 1; padding: 56px 32px; max-width: 1200px; margin: 0 auto; width: 100%; }

.section-header { margin-bottom: 36px; }
.section-header h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}
.section-header p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-top: 6px;
}

/* ── Tools Grid ── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s;
  position: relative;
  overflow: hidden;
}
.tool-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.tool-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--epoch-green);
}
.tool-card.coming-soon::before { background: var(--border); }

.tool-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--epoch-green-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}
.tool-card.coming-soon .tool-icon { background: #f4f6f9; }
.tool-icon-img { width: 40px; height: 40px; object-fit: contain; }

.tool-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .6px;
  text-transform: uppercase;
  color: var(--epoch-green-dark);
  background: var(--epoch-green-light);
  padding: 3px 10px;
  border-radius: 20px;
  width: fit-content;
}
.tool-card.coming-soon .tool-tag {
  color: var(--text-secondary);
  background: #f4f6f9;
}

.tool-info h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.tool-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.tool-footer { margin-top: auto; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--epoch-green);
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background .2s, transform .1s;
}
.btn-primary:hover { background: var(--epoch-green-dark); }
.btn-primary:active { transform: scale(.98); }

.btn-disabled {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--border);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 8px;
  cursor: not-allowed;
}

/* ── Footer ── */
footer {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-secondary);
}
.footer-logo { height: 24px; opacity: .6; }

/* ── Category colors ── */
:root {
  --cat-finance: #2563eb;
  --cat-finance-bg: #eff6ff;
  --cat-sales: #d97706;
  --cat-sales-bg: #fffbeb;
  --cat-ops: #7c3aed;
  --cat-ops-bg: #f5f3ff;
  --cat-product: #0891b2;
  --cat-product-bg: #ecfeff;
  --cat-fiscal: #dc2626;
  --cat-fiscal-bg: #fef2f2;
  --cat-import: #059669;
  --cat-import-bg: #ecfdf5;
}

/* ── View system ── */
.view { display: none; }
.view.active { display: block; animation: viewIn .18s ease; }
@keyframes viewIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Categories grid ── */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
}

.cat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  display: flex;
  align-items: center;
  gap: 18px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s;
  position: relative;
  overflow: hidden;
  -webkit-user-select: none;
  user-select: none;
}
.cat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
}
.cat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.cat-card-icon {
  width: 52px; height: 52px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; flex-shrink: 0;
}
.cat-card-body { flex: 1; min-width: 0; }
.cat-card-body h3 { font-size: 16px; font-weight: 700; color: var(--text-primary); margin-bottom: 3px; }
.cat-count-badge { font-size: 12px; color: var(--text-secondary); font-weight: 500; }
.cat-card-arrow { flex-shrink: 0; color: var(--border); transition: transform .15s, color .15s; }
.cat-card:hover .cat-card-arrow { transform: translateX(4px); }

.cat-card.cat-finance::before  { background: var(--cat-finance); }
.cat-card.cat-finance .cat-card-icon { background: var(--cat-finance-bg); }
.cat-card.cat-finance:hover .cat-card-arrow { color: var(--cat-finance); }

.cat-card.cat-sales::before    { background: var(--cat-sales); }
.cat-card.cat-sales .cat-card-icon { background: var(--cat-sales-bg); }
.cat-card.cat-sales:hover .cat-card-arrow { color: var(--cat-sales); }

.cat-card.cat-ops::before      { background: var(--cat-ops); }
.cat-card.cat-ops .cat-card-icon { background: var(--cat-ops-bg); }
.cat-card.cat-ops:hover .cat-card-arrow { color: var(--cat-ops); }

.cat-card.cat-product::before  { background: var(--cat-product); }
.cat-card.cat-product .cat-card-icon { background: var(--cat-product-bg); }
.cat-card.cat-product:hover .cat-card-arrow { color: var(--cat-product); }

.cat-card.cat-fiscal::before   { background: var(--cat-fiscal); }
.cat-card.cat-fiscal .cat-card-icon { background: var(--cat-fiscal-bg); }
.cat-card.cat-fiscal:hover .cat-card-arrow { color: var(--cat-fiscal); }

/* ── Tools view header ── */
.view-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px; font-weight: 500;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all .2s;
  font-family: var(--font);
  white-space: nowrap;
}
.btn-back:hover { background: var(--bg-page); color: var(--text-primary); border-color: #aaa; }

.view-cat-title {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 700;
}
.cat-icon-sm {
  width: 32px; height: 32px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; flex-shrink: 0;
}
.view-cat-title.cat-finance { color: var(--cat-finance); }
.view-cat-title.cat-finance .cat-icon-sm { background: var(--cat-finance-bg); }
.view-cat-title.cat-sales   { color: var(--cat-sales); }
.view-cat-title.cat-sales   .cat-icon-sm { background: var(--cat-sales-bg); }
.view-cat-title.cat-ops     { color: var(--cat-ops); }
.view-cat-title.cat-ops     .cat-icon-sm { background: var(--cat-ops-bg); }
.view-cat-title.cat-product { color: var(--cat-product); }
.view-cat-title.cat-product .cat-icon-sm { background: var(--cat-product-bg); }
.view-cat-title.cat-fiscal  { color: var(--cat-fiscal); }
.view-cat-title.cat-fiscal  .cat-icon-sm { background: var(--cat-fiscal-bg); }
.view-cat-title.cat-import  { color: var(--cat-import); }
.view-cat-title.cat-import  .cat-icon-sm { background: var(--cat-import-bg); }

/* ── Per-category tool card theme ── */
.tool-card.cat-finance::before { background: var(--cat-finance); }
.tool-card.cat-finance .tool-icon { background: var(--cat-finance-bg); }
.tool-card.cat-finance .tool-tag { background: var(--cat-finance-bg); color: var(--cat-finance); }
.tool-card.cat-finance .btn-primary { background: var(--cat-finance); }
.tool-card.cat-finance .btn-primary:hover { background: #1d4ed8; }

.tool-card.cat-sales::before { background: var(--cat-sales); }
.tool-card.cat-sales .tool-icon { background: var(--cat-sales-bg); }
.tool-card.cat-sales .tool-tag { background: var(--cat-sales-bg); color: var(--cat-sales); }
.tool-card.cat-sales .btn-primary { background: var(--cat-sales); }
.tool-card.cat-sales .btn-primary:hover { background: #b45309; }

.tool-card.cat-ops::before { background: var(--cat-ops); }
.tool-card.cat-ops .tool-icon { background: var(--cat-ops-bg); }
.tool-card.cat-ops .tool-tag { background: var(--cat-ops-bg); color: var(--cat-ops); }
.tool-card.cat-ops .btn-primary { background: var(--cat-ops); }
.tool-card.cat-ops .btn-primary:hover { background: #6d28d9; }

.tool-card.cat-product::before { background: var(--cat-product); }
.tool-card.cat-product .tool-icon { background: var(--cat-product-bg); }
.tool-card.cat-product .tool-tag { background: var(--cat-product-bg); color: var(--cat-product); }
.tool-card.cat-product .btn-primary { background: var(--cat-product); }
.tool-card.cat-product .btn-primary:hover { background: #0e7490; }

.tool-card.cat-fiscal::before { background: var(--cat-fiscal); }
.tool-card.cat-fiscal .tool-icon { background: var(--cat-fiscal-bg); }
.tool-card.cat-fiscal .tool-tag { background: var(--cat-fiscal-bg); color: var(--cat-fiscal); }
.tool-card.cat-fiscal .btn-primary { background: var(--cat-fiscal); }
.tool-card.cat-fiscal .btn-primary:hover { background: #b91c1c; }

.tool-card.cat-import::before { background: var(--cat-import); }
.tool-card.cat-import .tool-icon { background: var(--cat-import-bg); }
.tool-card.cat-import .tool-tag { background: var(--cat-import-bg); color: var(--cat-import); }
.tool-card.cat-import .btn-primary { background: var(--cat-import); }
.tool-card.cat-import .btn-primary:hover { background: #047857; }

.cat-card.cat-import::before  { background: var(--cat-import); }
.cat-card.cat-import .cat-card-icon { background: var(--cat-import-bg); }
.cat-card.cat-import:hover .cat-card-arrow { color: var(--cat-import); }

/* ── Responsive ── */
@media (max-width: 640px) {
  header { padding: 0 16px; height: 60px; }
  .topbar { padding: 6px 16px; }
  .hero { padding: 48px 16px; }
  main { padding: 36px 16px; }
  footer { flex-direction: column; gap: 10px; text-align: center; }
  nav { display: none; }
}