/* ============================================================
   ERP-STOK — SEO Marketing Pages
   Standalone stylesheet — prefix: .seo-
   No framework dependency. Safe to load alongside Bootstrap/Tailwind.
   ============================================================ */

/* ── Design tokens ────────────────────────────────────────── */
:root {
  --seo-primary:       #4f46e5;
  --seo-primary-dark:  #4338ca;
  --seo-primary-light: #eef2ff;
  --seo-primary-mid:   #c7d2fe;
  --seo-bg:            #f8fafc;
  --seo-bg-card:       #ffffff;
  --seo-text:          #0f172a;
  --seo-text-muted:    #64748b;
  --seo-border:        #e2e8f0;
  --seo-green-bg:      #f0fdf4;
  --seo-green-text:    #166534;
  --seo-green-border:  #bbf7d0;
  --seo-red-bg:        #fff1f2;
  --seo-red-text:      #9f1239;
  --seo-amber-bg:      #fffbeb;
  --seo-amber-text:    #92400e;
  --seo-shadow-sm:     0 1px 3px 0 rgb(0 0 0 / .08), 0 1px 2px -1px rgb(0 0 0 / .08);
  --seo-shadow:        0 4px 6px -1px rgb(0 0 0 / .08), 0 2px 4px -2px rgb(0 0 0 / .08);
  --seo-shadow-lg:     0 10px 25px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);
  --seo-radius:        0.75rem;
  --seo-radius-sm:     0.5rem;
  --seo-radius-lg:     1rem;
  --seo-font:          'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ── Base reset (scoped) ──────────────────────────────────── */
.seo-page *,
.seo-page *::before,
.seo-page *::after {
  box-sizing: border-box;
}

.seo-page {
  font-family: var(--seo-font);
  color: var(--seo-text);
  background-color: var(--seo-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

/* ── Layout utilities ─────────────────────────────────────── */
.seo-container {
  width: 100%;
  max-width: 72rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.seo-container--narrow {
  max-width: 56rem;
}

.seo-container--wide {
  max-width: 80rem;
}

.seo-section {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.seo-section--muted {
  background-color: #f1f5f9;
  border-top: 1px solid var(--seo-border);
  border-bottom: 1px solid var(--seo-border);
}

/* ── Typography ───────────────────────────────────────────── */
.seo-h1 {
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: var(--seo-text);
  margin: 0 0 1.5rem;
}

.seo-h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--seo-text);
  margin: 0 0 1rem;
}

.seo-h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--seo-text);
  margin: 0 0 0.5rem;
}

.seo-lead {
  font-size: 1.125rem;
  color: var(--seo-text-muted);
  line-height: 1.7;
  max-width: 42rem;
}

.seo-text-center { text-align: center; }
.seo-text-muted  { color: var(--seo-text-muted); }

/* ── Buttons ──────────────────────────────────────────────── */
.seo-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--seo-font);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  border-radius: var(--seo-radius-sm);
  transition: background-color 0.15s, transform 0.15s, box-shadow 0.15s;
  white-space: nowrap;
  padding: 0.875rem 2rem;
  line-height: 1;
}

.seo-btn:hover { transform: translateY(-1px); }

.seo-btn--primary {
  background-color: var(--seo-primary);
  color: #fff;
  box-shadow: var(--seo-shadow);
}
.seo-btn--primary:hover {
  background-color: var(--seo-primary-dark);
  box-shadow: var(--seo-shadow-lg);
  color: #fff;
}

.seo-btn--outline {
  background-color: var(--seo-bg-card);
  color: var(--seo-text);
  border: 1px solid var(--seo-border);
  box-shadow: var(--seo-shadow-sm);
}
.seo-btn--outline:hover {
  background-color: var(--seo-primary-light);
  border-color: var(--seo-primary-mid);
  color: var(--seo-primary);
}

.seo-btn--ghost-white {
  background-color: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.35);
}
.seo-btn--ghost-white:hover {
  background-color: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.6);
  color: #fff;
}

/* ── SEO Hero ─────────────────────────────────────────────── */
.seo-hero {
  background: radial-gradient(ellipse at top center, var(--seo-primary-light) 0%, var(--seo-bg) 65%);
  padding: 6rem 1.5rem 5rem;
  text-align: center;
}

.seo-hero__inner {
  max-width: 52rem;
  margin: 0 auto;
}

.seo-hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 2.5rem;
}

/* ── Feature list (checkmarks) ────────────────────────────── */
.seo-feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.seo-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--seo-text);
}

.seo-feature-list__icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.1rem;
  color: var(--seo-primary);
}

/* ── Cards ────────────────────────────────────────────────── */
.seo-card {
  background: var(--seo-bg-card);
  border: 1px solid var(--seo-border);
  border-radius: var(--seo-radius);
  box-shadow: var(--seo-shadow-sm);
  overflow: hidden;
}

.seo-card__header {
  background-color: #f8fafc;
  border-bottom: 1px solid var(--seo-border);
  padding: 1rem 1.5rem;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--seo-text);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.seo-card__body {
  padding: 1.5rem;
}

/* ── Two-column grid ──────────────────────────────────────── */
.seo-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}

.seo-grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .seo-grid-3 { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1024px) {
  .seo-grid-2 { grid-template-columns: 1fr 1fr; }
  .seo-grid-3 { grid-template-columns: 1fr 1fr 1fr; }
}

/* ── Comparison panel (strikethrough vs green) ────────────── */
.seo-compare__item {
  padding: 0.875rem 1rem;
  border-radius: var(--seo-radius-sm);
  font-size: 0.875rem;
  margin-bottom: 0.625rem;
}

.seo-compare__item--bad {
  background: var(--seo-red-bg);
  color: var(--seo-red-text);
  text-decoration: line-through;
  text-decoration-color: #fca5a5;
}

.seo-compare__item--good {
  background: var(--seo-green-bg);
  color: var(--seo-green-text);
  border: 1px solid var(--seo-green-border);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ── Step cards ───────────────────────────────────────────── */
.seo-step {
  background: var(--seo-bg-card);
  border: 1px solid var(--seo-border);
  border-radius: var(--seo-radius);
  padding: 1.5rem;
  box-shadow: var(--seo-shadow-sm);
}

.seo-step__number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--seo-primary);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: 0.75rem;
}

/* ── FAQ ──────────────────────────────────────────────────── */
.seo-faq-section {
  padding: 5rem 1.5rem;
}

.seo-faq-section__inner {
  max-width: 48rem;
  margin: 0 auto;
}

.seo-faq__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 3rem;
}

.seo-faq__item {
  background: var(--seo-bg-card);
  border: 1px solid var(--seo-border);
  border-radius: var(--seo-radius);
  box-shadow: var(--seo-shadow-sm);
  overflow: hidden;
  transition: border-color 0.2s;
}

.seo-faq__item.is-open {
  border-color: var(--seo-primary-mid);
}

.seo-faq__question {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--seo-font);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--seo-text);
  text-align: left;
  line-height: 1.5;
}

.seo-faq__question:hover { color: var(--seo-primary); }

.seo-faq__icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--seo-primary);
  transition: transform 0.25s;
}

.seo-faq__item.is-open .seo-faq__icon {
  transform: rotate(45deg);
}

.seo-faq__answer {
  display: none;
  padding: 0 1.5rem 1.25rem;
  font-size: 0.9375rem;
  color: var(--seo-text-muted);
  line-height: 1.7;
}

.seo-faq__item.is-open .seo-faq__answer {
  display: block;
}

/* ── CTA banner ───────────────────────────────────────────── */
.seo-cta-section {
  padding: 5rem 1.5rem;
}

.seo-cta__inner {
  background: var(--seo-primary);
  border-radius: 1.25rem;
  padding: 4rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  max-width: 52rem;
  margin: 0 auto;
}

.seo-cta__glow {
  position: absolute;
  top: -60px;
  right: -60px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255,255,255,.15) 0%, transparent 70%);
  pointer-events: none;
}

.seo-cta__title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

.seo-cta__subtitle {
  color: rgba(255,255,255,.85);
  font-size: 1.0625rem;
  line-height: 1.65;
  max-width: 36rem;
  margin: 0 auto 2.5rem;
}

.seo-cta__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.seo-cta__fine {
  margin-top: 1.5rem;
  font-size: 0.8125rem;
  color: rgba(255,255,255,.6);
}

/* ── Internal link grid ───────────────────────────────────── */
.seo-link-grid-section {
  padding: 4rem 1.5rem;
}

.seo-link-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .seo-link-grid { grid-template-columns: repeat(3, 1fr); }
}

.seo-link-card {
  display: block;
  background: var(--seo-bg-card);
  border: 1px solid var(--seo-border);
  border-radius: var(--seo-radius);
  padding: 1rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--seo-text);
  text-decoration: none;
  box-shadow: var(--seo-shadow-sm);
  transition: border-color 0.15s, color 0.15s, box-shadow 0.15s;
}

.seo-link-card:hover {
  border-color: var(--seo-primary-mid);
  color: var(--seo-primary);
  box-shadow: var(--seo-shadow);
  text-decoration: none;
}

/* ── Comparison table ─────────────────────────────────────── */
.seo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.seo-table th {
  padding: 1rem;
  font-weight: 700;
  text-align: center;
  border-bottom: 1px solid var(--seo-border);
  color: var(--seo-text-muted);
}

.seo-table th:first-child { text-align: left; color: var(--seo-text); }

.seo-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #f1f5f9;
  text-align: center;
  color: var(--seo-text-muted);
}

.seo-table td:first-child { text-align: left; font-weight: 500; color: var(--seo-text); }

.seo-table .seo-table__highlight {
  background: var(--seo-primary-light);
  font-weight: 600;
  color: var(--seo-primary);
}

/* ── Integration flow boxes ───────────────────────────────── */
.seo-flow {
  padding: 1.5rem;
}

.seo-flow__row {
  display: grid;
  gap: 0.75rem;
}

.seo-flow__row--3 { grid-template-columns: 1fr 1fr 1fr; }

.seo-flow__box {
  background: var(--seo-bg);
  border: 1px solid var(--seo-border);
  border-radius: var(--seo-radius-sm);
  padding: 0.75rem 1rem;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--seo-text);
}

.seo-flow__box--primary {
  background: var(--seo-primary-light);
  border-color: var(--seo-primary-mid);
  color: var(--seo-primary);
  font-weight: 700;
}

.seo-flow__arrow {
  text-align: center;
  color: var(--seo-text-muted);
  font-size: 0.8125rem;
  padding: 0.375rem 0;
}

/* ── Inline icon (svg) ────────────────────────────────────── */
.seo-icon-check {
  display: inline-block;
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
  color: var(--seo-primary);
}

/* ── Responsive helpers ───────────────────────────────────── */
@media (max-width: 640px) {
  .seo-hero { padding: 4rem 1rem 3.5rem; }
  .seo-cta__inner { padding: 2.5rem 1.25rem; }
  .seo-section { padding-top: 3.5rem; padding-bottom: 3.5rem; }
}