/* ==========================================================================
   PDF Impose Online — Aurora Midnight (glow SaaS)
   Rich midnight base + radial aurora glow + glassy cards + pill gradient CTAs
   ========================================================================== */

:root {
  --bg: #0A0E1A;
  --bg-raised: #10162A;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-solid: #12172A;
  --border-glass: rgba(255, 255, 255, 0.10);
  --border-glass-hover: rgba(255, 255, 255, 0.20);
  --border-gradient: linear-gradient(135deg, rgba(124,58,237,.40), rgba(6,182,212,.35) 50%, rgba(16,185,129,.30));
  --border-gradient-hover: linear-gradient(135deg, rgba(124,58,237,.75), rgba(6,182,212,.65) 50%, rgba(16,185,129,.60));
  --text: #F1F5FB;
  --text-dim: #A6B0C8;
  --text-dimmer: #7B849C;
  --violet: #7C3AED;
  --violet-text: #A78BFA;
  --violet-btn: #A78BFA;
  --cyan: #06B6D4;
  --green: #10B981;
  --violet-soft: rgba(124, 58, 237, 0.35);
  --cyan-soft: rgba(6, 182, 212, 0.30);
  --green-soft: rgba(16, 185, 129, 0.25);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-w: 1180px;
  --shadow-glow: 0 8px 40px rgba(124, 58, 237, 0.18);

  /* Spacing scale — 4/8-based */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Orchestrated load reveal (hero / lead sections) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal-stagger > * {
    opacity: 0;
    animation: heroReveal 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }
  .reveal-stagger > *:nth-child(1) { animation-delay: 0.05s; }
  .reveal-stagger > *:nth-child(2) { animation-delay: 0.15s; }
  .reveal-stagger > *:nth-child(3) { animation-delay: 0.25s; }
  .reveal-stagger > *:nth-child(4) { animation-delay: 0.35s; }
  .reveal-stagger > *:nth-child(5) { animation-delay: 0.45s; }
}

@keyframes heroReveal {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* Star-dot texture, applied globally, subtle */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 12% 18%, rgba(255,255,255,0.5) 50%, transparent 51%),
    radial-gradient(1px 1px at 78% 42%, rgba(255,255,255,0.35) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 34% 68%, rgba(255,255,255,0.3) 50%, transparent 51%),
    radial-gradient(1px 1px at 90% 82%, rgba(255,255,255,0.4) 50%, transparent 51%),
    radial-gradient(1px 1px at 55% 8%, rgba(255,255,255,0.3) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 6% 88%, rgba(255,255,255,0.25) 50%, transparent 51%);
  background-repeat: no-repeat;
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

.aurora-glow {
  position: absolute;
  top: -280px;
  left: 50%;
  transform: translateX(-50%);
  width: min(1400px, 180vw);
  height: 900px;
  background:
    radial-gradient(circle at 30% 30%, var(--violet-soft) 0%, transparent 55%),
    radial-gradient(circle at 68% 40%, var(--cyan-soft) 0%, transparent 52%),
    radial-gradient(circle at 50% 65%, var(--green-soft) 0%, transparent 50%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

main, header, footer { position: relative; z-index: 1; }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -60px;
  background: var(--bg-raised);
  color: var(--text);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass-hover);
  z-index: 100;
  text-decoration: none;
  font-weight: 700;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: var(--space-3);
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; }

img, svg { max-width: 100%; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 26, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-glass);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--text);
  letter-spacing: -0.01em;
}

.brand svg { width: 28px; height: 28px; flex-shrink: 0; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.94rem;
  font-weight: 600;
  padding: 10px 2px;
  transition: color 0.15s ease;
}

.nav-links a:hover { color: var(--text); }

.nav-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  background: none;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 8px 10px;
  cursor: pointer;
  font-size: 1.1rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.nav-toggle:hover { border-color: var(--border-glass-hover); background: rgba(255,255,255,0.04); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  border-radius: 999px;
  padding: 12px 26px;
  font-weight: 700;
  font-size: 0.96rem;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease, background-position 0.4s ease;
  white-space: nowrap;
}

.btn-primary {
  color: #06070C;
  background: linear-gradient(120deg, var(--cyan), var(--green) 55%, var(--violet-btn));
  background-size: 180% 180%;
  background-position: 0% 50%;
  box-shadow: 0 6px 24px rgba(124, 58, 237, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  background-position: 100% 50%;
  box-shadow: 0 10px 32px rgba(124, 58, 237, 0.45);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.3);
}

.btn-ghost {
  color: var(--text);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-glass);
  position: relative;
}

.btn-ghost:hover {
  border-color: var(--border-glass-hover);
  background: rgba(255,255,255,0.06);
  box-shadow: 0 8px 24px rgba(6, 182, 212, 0.12);
}

.btn-ghost:active { background: rgba(255,255,255,0.08); box-shadow: none; }

.btn-sm { padding: 9px 18px; font-size: 0.86rem; min-height: 44px; }

.btn:focus-visible, a:focus-visible, summary:focus-visible, button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 8px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 72px;
  position: relative;
  text-align: center;
}

.hero .wrap { position: relative; z-index: 2; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.3);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}

h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  background: linear-gradient(180deg, #FFFFFF 0%, #C9D3EA 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto 34px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.trust-line {
  font-size: 0.88rem;
  color: var(--text-dimmer);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.trust-line .dot { color: var(--green); }

/* ---------- Sections ---------- */
section { padding: 72px 0; }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.015em;
  margin: 0 0 12px;
}

.section-head p { color: var(--text-dim); margin: 0; font-size: 1.02rem; }

.kicker {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--violet-text);
  display: block;
  margin-bottom: 10px;
}

/* ---------- Glass card ---------- */
.card {
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(6px);
  background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--border-gradient);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-image 0.2s ease;
}

.card:hover {
  background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--border-gradient-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.card:active { transform: translateY(-1px); }

/* ---------- How it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.step {
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  position: relative;
  background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--border-gradient);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-image 0.2s ease;
}

.step:hover {
  background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--border-gradient-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.step:active { transform: translateY(-1px); }

.step-num {
  position: absolute;
  top: -14px;
  left: 26px;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--violet-btn), var(--cyan));
  color: #06070C;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
}

.step svg { width: 40px; height: 40px; margin-bottom: 16px; }

.step h3 { margin: 0 0 10px; font-size: 1.12rem; font-weight: 700; }
.step p { margin: 0; color: var(--text-dim); font-size: 0.95rem; }

/* ---------- Feature grid ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature {
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 24px;
  background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--border-gradient);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-image 0.2s ease;
}

.feature:hover {
  background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--border-gradient-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.feature .icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(124,58,237,0.25), rgba(6,182,212,0.25));
  margin-bottom: 14px;
}

.feature .icon svg { width: 20px; height: 20px; }

.feature h3 { margin: 0 0 8px; font-size: 1.02rem; font-weight: 700; }
.feature p { margin: 0; color: var(--text-dim); font-size: 0.92rem; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }

details.faq-item {
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 4px 22px;
  background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--border-gradient);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  transition: background-image 0.2s ease;
}

details.faq-item:hover,
details.faq-item[open] {
  background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--border-gradient-hover);
}

details.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

details.faq-item summary::-webkit-details-marker { display: none; }

details.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--cyan);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

details.faq-item[open] summary::after { transform: rotate(45deg); }

details.faq-item p {
  margin: 0 0 20px;
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* ---------- Blog cards ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.blog-card {
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  padding: 26px;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 12px;
  background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--border-gradient);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-image 0.2s ease;
}

.blog-card:hover {
  background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--border-gradient-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.blog-card .tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green);
}

.blog-card h3 { margin: 0; font-size: 1.14rem; font-weight: 700; line-height: 1.35; }
.blog-card p { margin: 0; color: var(--text-dim); font-size: 0.92rem; }
.blog-card .read-more { margin-top: auto; font-size: 0.86rem; font-weight: 700; color: var(--cyan); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border-glass);
  padding: 56px 0 32px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-brand p { color: var(--text-dim); font-size: 0.9rem; max-width: 280px; }

.footer-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dimmer);
  margin: 0 0 14px;
}

.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { text-decoration: none; color: var(--text-dim); font-size: 0.9rem; }
.footer-col a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--border-glass);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.84rem;
  color: var(--text-dimmer);
}

.footer-bottom a { color: var(--text-dimmer); text-decoration: none; }
.footer-bottom a:hover { color: var(--text-dim); }

/* ---------- Article page ---------- */
.article-hero {
  padding: 56px 0 20px;
}

.breadcrumb {
  font-size: 0.86rem;
  color: var(--text-dimmer);
  margin-bottom: 22px;
}

.breadcrumb a { color: var(--text-dimmer); text-decoration: none; }
.breadcrumb a:hover { color: var(--text-dim); }

.article-hero h1 { text-align: left; font-size: clamp(1.9rem, 4.4vw, 2.7rem); }

.byline {
  color: var(--text-dimmer);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

article.post {
  max-width: 760px;
  margin: 0 auto;
  padding-bottom: 60px;
}

.answer-block {
  border: 1px solid transparent;
  background-image:
    linear-gradient(135deg, rgba(124,58,237,0.08), rgba(6,182,212,0.06)),
    var(--border-gradient);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  border-radius: var(--radius-lg);
  padding: 24px 26px;
  margin: 8px 0 40px;
  font-size: 1.05rem;
}

.answer-block strong { color: var(--cyan); }

article.post h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 44px 0 16px;
}

article.post h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 28px 0 12px;
}

article.post p { margin: 0 0 18px; color: var(--text-dim); font-size: 1rem; }
article.post ul, article.post ol { color: var(--text-dim); margin: 0 0 18px; padding-left: 22px; }
article.post li { margin-bottom: 8px; }
article.post strong { color: var(--text); }

article.post a.inline-link { color: var(--cyan); text-decoration: underline; text-decoration-color: rgba(6,182,212,0.4); }

figure {
  margin: 32px 0;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 20px;
  background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--border-gradient);
  background-origin: border-box;
  background-clip: padding-box, border-box;
}

figure svg { width: 100%; height: auto; max-width: 640px; display: block; margin: 0 auto; }

figcaption {
  text-align: center;
  color: var(--text-dimmer);
  font-size: 0.86rem;
  margin-top: 14px;
}

.data-table-wrap { overflow-x: auto; margin: 28px 0; }

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 480px;
  font-variant-numeric: tabular-nums;
}

table.data-table th, table.data-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-glass);
}

table.data-table thead th {
  color: var(--text-dimmer);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 700;
  background: rgba(255,255,255,0.02);
}

table.data-table tbody tr:hover { background: rgba(255,255,255,0.02); }

.cta-band {
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  background-image:
    linear-gradient(135deg, rgba(124,58,237,0.14), rgba(6,182,212,0.1) 60%, rgba(16,185,129,0.1)),
    var(--border-gradient-hover);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  padding: 34px 30px;
  text-align: center;
  margin: 44px 0;
}

.cta-band h3 { margin: 0 0 10px; font-size: 1.3rem; }
.cta-band p { color: var(--text-dim); margin: 0 0 22px; }

.post-faq { margin-top: 48px; }
.post-faq h2 { margin-bottom: 20px; }

/* ---------- Blog index ---------- */
.blog-index-head { padding: 72px 0 20px; text-align: center; }

/* ---------- 404 ---------- */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 0;
}

.error-page .code {
  font-size: 5rem;
  font-weight: 800;
  background: linear-gradient(120deg, var(--violet), var(--cyan), var(--green));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0 0 12px;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero { padding: 56px 0 48px; }
  section { padding: 52px 0; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .nav { flex-wrap: wrap; row-gap: 12px; padding: 14px 16px; }
  .wrap { padding: 0 16px; }
}

body.nav-open .nav-links {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border-glass);
  padding: 20px 24px;
  gap: 18px;
}