/* ============================================================
   ai-visibility.com.au — Global Stylesheet
   Design: Dark Navy (#07090e), Violet Accent (#7c3aed), Inter
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg:           #07090e;
  --bg-card:      #0d1117;
  --bg-card-2:    #111827;
  --border:       #1f2937;
  --border-light: #374151;
  --text:         #f9fafb;
  --text-muted:   #9ca3af;
  --text-subtle:  #6b7280;
  --accent:       #7c3aed;
  --accent-hover: #6d28d9;
  --accent-light: #a78bfa;
  --accent-glow:  rgba(124, 58, 237, 0.15);
  --green:        #10b981;
  --radius:       0.5rem;
  --radius-lg:    0.75rem;
  --shadow:       0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:    0 8px 40px rgba(0,0,0,0.6);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-light); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-light); text-decoration: underline; }

img { max-width: 100%; height: auto; }

/* ── HEADER ─────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 14, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.site-logo span { color: var(--accent-light); }

.site-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s;
  text-decoration: none;
}

.site-nav a:hover { color: var(--text); background: var(--bg-card-2); }

.site-nav .nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 0.45rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.875rem;
  margin-left: 0.5rem;
}

.site-nav .nav-cta:hover { background: var(--accent-hover); color: #fff; text-decoration: none; }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  margin: 4px 0;
  transition: all 0.3s;
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
  }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .site-nav .nav-cta { margin-left: 0; margin-top: 0.5rem; }
}

/* ── HERO ────────────────────────────────────────────────── */

.hero {
  position: relative;
  overflow: hidden;
  padding: 6rem 2rem 5rem;
  text-align: center;
  background: linear-gradient(180deg, #07090e 0%, #0a0f1a 100%);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124,58,237,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.3);
  color: var(--accent-light);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.35rem 0.875rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text);
  max-width: 860px;
  margin: 0 auto 1.25rem;
}

.hero h1 .accent { color: var(--accent-light); }

.hero-lead {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── BUTTONS ─────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(124,58,237,0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-light);
}

.btn-secondary:hover {
  background: var(--bg-card-2);
  color: var(--text);
  text-decoration: none;
}

.btn-lg {
  font-size: 1.0625rem;
  padding: 0.9rem 2rem;
}

/* ── LAYOUT ──────────────────────────────────────────────── */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 5rem 0;
}

.section-sm {
  padding: 3rem 0;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.section-lead {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 3rem;
  line-height: 1.7;
}

.section-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* ── CARDS ───────────────────────────────────────────────── */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.card-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--accent-glow);
  border: 1px solid rgba(124,58,237,0.25);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

.card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.card p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }

@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* ── PROSE (article body) ────────────────────────────────── */

.prose h2 {
  font-size: 1.625rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-top: 3rem;
  margin-bottom: 0.875rem;
}

.prose h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--text);
  margin-top: 2rem;
  margin-bottom: 0.625rem;
}

.prose p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.prose ul, .prose ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.prose li {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 0.4rem;
}

.prose strong { color: var(--text); font-weight: 600; }

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

.answer-capsule {
  background: rgba(124,58,237,0.08);
  border: 1px solid rgba(124,58,237,0.25);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}

.answer-capsule p {
  color: var(--text);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0;
}

/* ── TABLE ───────────────────────────────────────────────── */

.table-wrap { overflow-x: auto; margin-bottom: 2rem; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

thead th {
  background: var(--bg-card-2);
  color: var(--text);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  text-align: left;
}

tbody td {
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  color: var(--text-muted);
  vertical-align: top;
}

tbody tr:hover td { background: rgba(255,255,255,0.02); }

/* ── FAQ ─────────────────────────────────────────────────── */

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1rem;
  background: var(--bg-card);
}

.faq-item h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.625rem;
  letter-spacing: -0.01em;
}

.faq-item p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
}

/* ── STAT STRIP ──────────────────────────────────────────── */

.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 4rem;
}

.stat-item {
  background: var(--bg-card);
  padding: 2rem 1.5rem;
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent-light);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 0.375rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.4;
}

@media (max-width: 640px) {
  .stat-strip { grid-template-columns: 1fr; }
}

/* ── CTA BLOCK ───────────────────────────────────────────── */

.cta-block {
  background: linear-gradient(135deg, var(--bg-card) 0%, #0f1929 100%);
  border: 1px solid rgba(124,58,237,0.25);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 50% at 50% 0%, rgba(124,58,237,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.cta-block h2 {
  font-size: clamp(1.375rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 0.875rem;
}

.cta-block p {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

/* ── BREADCRUMB ──────────────────────────────────────────── */

.breadcrumb {
  font-size: 0.8125rem;
  color: var(--text-subtle);
  margin-bottom: 2rem;
}

.breadcrumb a { color: var(--text-subtle); }
.breadcrumb a:hover { color: var(--text-muted); }
.breadcrumb span { margin: 0 0.375rem; }

/* ── PAGE HEADER ─────────────────────────────────────────── */

.page-header {
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4rem;
}

.page-header .tag {
  display: inline-block;
  background: var(--accent-glow);
  border: 1px solid rgba(124,58,237,0.25);
  color: var(--accent-light);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.page-header h1 {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text);
  max-width: 800px;
  margin-bottom: 1rem;
}

.page-header .meta {
  font-size: 0.875rem;
  color: var(--text-subtle);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ── ARTICLE LAYOUT ──────────────────────────────────────── */

.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 4rem;
  align-items: start;
}

@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: none; }
}

.article-sidebar {
  position: sticky;
  top: 84px;
}

.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.sidebar-card h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.sidebar-card ul {
  list-style: none;
  padding: 0;
}

.sidebar-card ul li {
  margin-bottom: 0.5rem;
}

.sidebar-card ul li a {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.sidebar-card ul li a:hover { color: var(--accent-light); }

/* ── BLOG GRID ───────────────────────────────────────────── */

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .blog-grid { grid-template-columns: 1fr; }
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, transform 0.2s;
  text-decoration: none;
}

.blog-card:hover {
  border-color: rgba(124,58,237,0.4);
  transform: translateY(-2px);
  text-decoration: none;
}

.blog-card .tag {
  display: inline-block;
  background: var(--accent-glow);
  border: 1px solid rgba(124,58,237,0.2);
  color: var(--accent-light);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  margin-bottom: 0.875rem;
  width: fit-content;
}

.blog-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 0.625rem;
  letter-spacing: -0.01em;
}

.blog-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 1rem;
}

.blog-card .read-more {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-light);
}

/* ── FOOTER ──────────────────────────────────────────────── */

.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
  margin-top: 6rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
}

.footer-brand .logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col ul li a {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-col ul li a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--text-subtle);
}

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

/* ── UTILITY ─────────────────────────────────────────────── */

.text-accent { color: var(--accent-light); }
.text-muted { color: var(--text-muted); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ── CROSS-LINK BOX ──────────────────────────────────────── */

.crosslink-box {
  background: var(--bg-card-2);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--accent-light);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
}

.crosslink-box p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0;
}

.crosslink-box strong { color: var(--text); }