/* Shared base.css — common structure/behavior across all 4 product sites.
   Only --accent is overridden per site; everything else stays identical so the
   4 copies can be diffed/kept in sync. Load this BEFORE the page's own <style>
   block, which should only contain what's unique to that page. */

:root {
  --brand: #0A1625;
  --body: #0b1623;
  --card-bg: #0f1d2e;
  --card-bg-2: #0c1a29;
  --card-border: #12263c;
  --text-hero: #e6edf3;
  --text-muted: #cfe0ef;
  --muted: #9fb3c8;
  --radius: 18px;
  --accent: #3b82f6; /* OVERRIDE per site: pdf-compressor/invoice-template keep this blue,
                        bulk-image-downloader uses #ff4757, bulk-image-resizer keeps its
                        own current accent — set via a :root override AFTER this file loads */
  --accent-hover: color-mix(in srgb, var(--accent) 85%, black);
  --accent-light: color-mix(in srgb, var(--accent) 75%, white);
  --shadow: 0 24px 60px rgba(0, 0, 0, .35), 0 3px 10px rgba(0, 0, 0, .25);
  --shadow-sm: 0 8px 25px rgba(0, 0, 0, .2);
  --container-max: 1200px;
  --gap-section: clamp(40px, 8vw, 80px);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--body);
  color: #dbe7f3;
  line-height: 1.6;
}

/* ---------- Shared layout containers ---------- */

.wrap,
.main {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

.article {
  max-width: 780px;
  margin: 0 auto;
}

/* ---------- Header / nav ---------- */

.header {
  background: linear-gradient(180deg, var(--card-bg), var(--card-bg-2));
  border-bottom: 1px solid var(--card-border);
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  flex-shrink: 0;
}

.nav {
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link,
.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover,
.nav a:hover {
  color: #fff;
}

.cta-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  padding: 12px 24px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
}

/* ---------- Hero ---------- */

.hero {
  text-align: center;
  padding: 80px 0 60px;
}

.hero h1 {
  font-size: clamp(30px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 20px;
  background: linear-gradient(135deg, #fff, var(--text-hero));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .meta {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 20px;
}

.hero p {
  font-size: clamp(17px, 2.5vw, 22px);
  color: var(--text-muted);
  margin: 0 0 32px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  padding: 16px 32px;
  border-radius: 16px;
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  transition: all 0.2s;
  box-shadow: var(--shadow);
  text-align: center;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--text-muted);
  padding: 16px 32px;
  border: 2px solid var(--card-border);
  border-radius: 16px;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  transition: all 0.2s;
  text-align: center;
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- Section headers ---------- */

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  margin: 0 0 16px;
  color: #fff;
}

.section-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-muted);
  margin: 0;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Feature / card grids (mobile-safe: no minmax(300px,...) on narrow screens) ---------- */

.features-grid,
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
  margin-top: 40px;
}

.feature-card {
  background: linear-gradient(180deg, var(--card-bg), var(--card-bg-2));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 26px;
}

.feature-title,
.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 12px;
  color: #fff;
}

.feature-description,
.feature-card p {
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

/* ---------- Benefits / checklist ---------- */

.benefits-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.benefits-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text-muted);
}

.benefits-list li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  font-size: 18px;
}

/* ---------- Article body (blog/guide copy) ---------- */

.article-body {
  padding: 20px 0 60px;
}

.article-body h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  color: #fff;
  margin: 48px 0 16px;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin: 32px 0 12px;
}

.article-body p {
  font-size: 17px;
  color: var(--text-muted);
  margin: 0 0 20px;
}

.article-body a {
  color: var(--accent-light);
}

.article-body ul,
.article-body ol {
  color: var(--text-muted);
  font-size: 17px;
  padding-left: 24px;
  margin: 0 0 20px;
}

.article-body li {
  margin-bottom: 10px;
}

.callout {
  background: linear-gradient(180deg, var(--card-bg), var(--card-bg-2));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin: 32px 0;
}

.callout p {
  margin: 0;
}

/* ---------- Comparison tables: desktop = table, mobile (<=768px) = stacked cards ---------- */

.compare-table-wrap,
.comparison-table-wrap {
  overflow-x: auto;
  margin: 32px 0;
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
}

table.compare-table,
table.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 16px;
}

table.compare-table th,
table.compare-table td,
table.comparison-table th,
table.comparison-table td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid var(--card-border);
  color: var(--text-muted);
}

table.compare-table th,
table.comparison-table th {
  background: var(--card-bg-2);
  color: #fff;
  font-weight: 700;
}

table.compare-table tr:last-child td,
table.comparison-table tr:last-child td {
  border-bottom: none;
}

table.compare-table td.dash {
  color: var(--muted);
}

.table-footnote {
  font-size: 14px;
  color: var(--muted);
  margin: -12px 0 32px;
}

/* ---------- CTA / Footer ---------- */

.cta-section {
  padding: 60px 0;
  text-align: center;
  background: linear-gradient(135deg, var(--card-bg), var(--card-bg-2));
  border-radius: var(--radius);
  margin: 40px 0;
}

.cta-section h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  margin: 0 0 16px;
  color: #fff;
}

.cta-section p {
  font-size: 18px;
  color: var(--text-muted);
  margin: 0 0 32px;
}

.footer {
  border-top: 1px solid var(--card-border);
  padding: 40px 0;
  text-align: center;
  color: var(--muted);
}

.footer a {
  color: var(--text-muted);
}

/* ================= Responsive: 3 required breakpoints ================= */

/* Tablet: mainly guard against comparison-table overflow and 2-col grids getting tight */
@media (max-width: 1024px) {
  .features-grid,
  .features {
    gap: 20px;
  }
}

/* Main breakpoint — every page must behave correctly here */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 14px;
    align-items: stretch;
  }

  .nav {
    gap: 14px;
    justify-content: center;
  }

  .hero {
    padding: 44px 0 32px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .features-grid,
  .features {
    grid-template-columns: 1fr;
  }

  .section-header {
    margin-bottom: 36px;
  }

  /* Comparison tables become stacked cards instead of a horizontally-scrolling table.
     Requires each <td> to carry data-label="<column header text>" in markup. */
  .compare-table-wrap table,
  .comparison-table-wrap table {
    border: 0;
  }

  .compare-table-wrap table thead,
  .comparison-table-wrap table thead {
    display: none;
  }

  .compare-table-wrap table tr,
  .comparison-table-wrap table tr {
    display: block;
    border-bottom: 1px solid var(--card-border);
    padding: 16px 18px;
  }

  .compare-table-wrap table tr:last-child,
  .comparison-table-wrap table tr:last-child {
    border-bottom: 0;
  }

  .compare-table-wrap table td,
  .comparison-table-wrap table td {
    display: block;
    border-bottom: none;
    padding: 6px 0;
  }

  .compare-table-wrap table td[data-label]::before,
  .comparison-table-wrap table td[data-label]::before {
    content: attr(data-label);
    display: block;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--muted);
    margin-bottom: 4px;
  }

  table.compare-table td:first-child,
  table.comparison-table td:first-child {
    color: #fff;
    font-weight: 700;
  }
}

/* Small phones */
@media (max-width: 480px) {
  .hero {
    padding: 36px 0 24px;
  }

  .btn-primary,
  .btn-secondary,
  .cta-button {
    width: 100%;
  }

  .hero-cta {
    width: 100%;
  }
}