/* AI Tool Daily — Main Stylesheet */

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

:root {
  --blue: #2563EB;
  --blue-light: #EFF6FF;
  --purple: #7C3AED;
  --purple-light: #F5F3FF;
  --green: #059669;
  --green-light: #ECFDF5;
  --gray-900: #111827;
  --gray-700: #374151;
  --gray-500: #6B7280;
  --gray-300: #D1D5DB;
  --gray-100: #F3F4F6;
  --gray-50: #F9FAFB;
  --white: #FFFFFF;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --shadow-hover: 0 4px 6px rgba(0,0,0,.08), 0 12px 28px rgba(0,0,0,.1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); color: var(--gray-900); background: var(--white); line-height: 1.6; -webkit-font-smoothing: antialiased; }

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── Header ── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-300);
  padding: 0;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: 32px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.2rem; color: var(--gray-900); text-decoration: none; white-space: nowrap;
}
.logo:hover { text-decoration: none; }
.logo-icon { font-size: 1.5rem; }
.logo-text { color: var(--gray-700); }
.logo-text strong { color: var(--blue); }

.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a {
  padding: 6px 14px; border-radius: 8px; font-size: .925rem; font-weight: 500;
  color: var(--gray-700); text-decoration: none; transition: background var(--transition), color var(--transition);
}
.main-nav a:hover, .main-nav a.active { background: var(--blue-light); color: var(--blue); text-decoration: none; }

.mobile-menu-btn {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: 4px;
}
.mobile-menu-btn span { display: block; width: 22px; height: 2px; background: var(--gray-700); border-radius: 2px; }

/* ── Hero ── */
.hero {
  background: linear-gradient(135deg, #1E3A8A 0%, #2563EB 50%, #7C3AED 100%);
  color: white; padding: 80px 0 72px; text-align: center;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; line-height: 1.2; margin-bottom: 20px; letter-spacing: -0.02em; }
.hero p { font-size: clamp(1rem, 2.5vw, 1.2rem); opacity: .88; max-width: 580px; margin: 0 auto 32px; }
.hero-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.hero-badge {
  padding: 6px 16px; border-radius: 999px; background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.25); font-size: .875rem; font-weight: 500;
}

/* ── Section headers ── */
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; flex-wrap: wrap; gap: 12px; }
.section-title { font-size: 1.6rem; font-weight: 700; color: var(--gray-900); display: flex; align-items: center; gap: 10px; }
.section-title::before { content: ""; display: inline-block; width: 4px; height: 26px; background: var(--blue); border-radius: 2px; }
.section-title.purple::before { background: var(--purple); }
.section-title.green::before { background: var(--green); }

section.content-section { padding: 64px 0; }
section.content-section:nth-child(even) { background: var(--gray-50); }

/* ── Article cards ── */
.articles-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }

.article-card {
  background: var(--white); border-radius: var(--radius); border: 1px solid var(--gray-300);
  padding: 28px; display: flex; flex-direction: column; gap: 16px;
  box-shadow: var(--shadow); transition: transform var(--transition), box-shadow var(--transition);
}
.article-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }

.card-featured {
  grid-column: 1 / -1; flex-direction: row; gap: 32px; padding: 36px;
  border-left: 4px solid var(--blue);
}

.card-emoji { font-size: 2.5rem; line-height: 1; flex-shrink: 0; }
.card-featured .card-emoji { font-size: 3.5rem; display: flex; align-items: flex-start; padding-top: 4px; }

.card-body { display: flex; flex-direction: column; gap: 12px; flex: 1; }

.card-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; font-size: .8rem; color: var(--gray-500); }
.card-meta time { font-size: .8rem; }

.badge {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  font-size: .75rem; font-weight: 600; letter-spacing: .02em; text-transform: uppercase;
}

.reading-time { font-size: .8rem; color: var(--gray-500); }
.reading-time::before { content: "·"; margin-right: 8px; }

.card-title { font-size: 1.15rem; font-weight: 700; line-height: 1.35; color: var(--gray-900); }
.card-featured .card-title { font-size: 1.5rem; }
.card-title a { color: inherit; text-decoration: none; }
.card-title a:hover { color: var(--blue); text-decoration: none; }

.card-excerpt { font-size: .9rem; color: var(--gray-700); line-height: 1.6; flex: 1; }

.card-link {
  display: inline-flex; align-items: center; gap: 4px; font-size: .875rem;
  font-weight: 600; color: var(--blue); text-decoration: none; margin-top: auto;
}
.card-link:hover { text-decoration: underline; }

/* ── Article page ── */
.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 48px; padding: 48px 0 80px; align-items: start; }

.article-header { margin-bottom: 40px; padding-bottom: 32px; border-bottom: 1px solid var(--gray-300); }
.breadcrumb { font-size: .85rem; color: var(--gray-500); margin-bottom: 20px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.breadcrumb a { color: var(--gray-500); }
.breadcrumb a:hover { color: var(--blue); }
.breadcrumb-sep { color: var(--gray-300); }

.article-eyebrow { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; flex-wrap: wrap; }
.article-h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; line-height: 1.2; color: var(--gray-900); margin-bottom: 20px; letter-spacing: -0.01em; }
.article-byline { font-size: .875rem; color: var(--gray-500); display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.article-byline strong { color: var(--gray-700); }

/* ── Article body ── */
.article-body { font-family: var(--font-sans); font-size: 1.05rem; line-height: 1.8; color: var(--gray-700); }
.article-body h2 { font-size: 1.5rem; font-weight: 700; color: var(--gray-900); margin: 44px 0 16px; padding-top: 8px; border-top: 1px solid var(--gray-100); }
.article-body h3 { font-size: 1.2rem; font-weight: 700; color: var(--gray-900); margin: 32px 0 12px; }
.article-body h4 { font-size: 1rem; font-weight: 700; color: var(--gray-900); margin: 24px 0 8px; }
.article-body p { margin-bottom: 20px; }
.article-body ul, .article-body ol { margin: 0 0 20px 24px; }
.article-body li { margin-bottom: 8px; }
.article-body li::marker { color: var(--blue); }
.article-body strong { color: var(--gray-900); font-weight: 600; }
.article-body a { color: var(--blue); font-weight: 500; }

/* Tables */
.article-body table { width: 100%; border-collapse: collapse; margin: 28px 0; font-size: .9rem; }
.article-body th { background: var(--gray-900); color: white; padding: 12px 16px; text-align: left; font-weight: 600; }
.article-body td { padding: 12px 16px; border-bottom: 1px solid var(--gray-300); vertical-align: top; }
.article-body tr:nth-child(even) td { background: var(--gray-50); }
.article-body tr:hover td { background: var(--blue-light); }
.article-body .table-wrapper { overflow-x: auto; margin: 28px 0; border-radius: 8px; border: 1px solid var(--gray-300); }
.article-body .table-wrapper table { margin: 0; }

/* Blockquote */
.article-body blockquote {
  border-left: 4px solid var(--blue); background: var(--blue-light);
  padding: 20px 24px; border-radius: 0 8px 8px 0; margin: 28px 0; font-style: italic;
}
.article-body blockquote p { margin: 0; color: var(--gray-700); }

/* Code */
.article-body code { background: var(--gray-100); padding: 2px 6px; border-radius: 4px; font-size: .875em; font-family: "SF Mono", "Fira Code", monospace; color: #D62828; }
.article-body pre { background: var(--gray-900); color: #F8F8F2; padding: 20px 24px; border-radius: 8px; overflow-x: auto; margin: 24px 0; }
.article-body pre code { background: none; color: inherit; padding: 0; font-size: .875rem; }

/* ── Sidebar ── */
.sidebar { position: sticky; top: 80px; display: flex; flex-direction: column; gap: 28px; }
.sidebar-card { background: var(--gray-50); border: 1px solid var(--gray-300); border-radius: var(--radius); padding: 24px; }
.sidebar-card h3 { font-size: 1rem; font-weight: 700; color: var(--gray-900); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--gray-300); }
.sidebar-links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.sidebar-links li a { font-size: .875rem; color: var(--gray-700); text-decoration: none; display: flex; gap: 8px; align-items: flex-start; }
.sidebar-links li a:hover { color: var(--blue); }
.sidebar-links .s-emoji { font-size: 1rem; flex-shrink: 0; }
.sidebar-links .s-title { line-height: 1.4; }

.toc-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.toc-list li a { font-size: .85rem; color: var(--gray-600); text-decoration: none; padding: 4px 0 4px 12px; border-left: 2px solid var(--gray-300); display: block; transition: border-color var(--transition), color var(--transition); }
.toc-list li a:hover { border-left-color: var(--blue); color: var(--blue); }

/* ── Newsletter ── */
.newsletter-box {
  background: linear-gradient(135deg, #1E3A8A, #2563EB);
  color: white; padding: 56px 0; text-align: center; margin-top: 0;
}
.newsletter-box h2 { font-size: 1.75rem; font-weight: 700; margin-bottom: 12px; }
.newsletter-box p { opacity: .88; max-width: 480px; margin: 0 auto 28px; }
.newsletter-form { display: flex; gap: 10px; max-width: 460px; margin: 0 auto; flex-wrap: wrap; justify-content: center; }
.newsletter-form input {
  flex: 1 1 220px; padding: 12px 16px; border-radius: 8px; border: none;
  font-size: .925rem; outline: none; min-width: 0;
}
.btn-primary {
  padding: 12px 24px; border-radius: 8px; background: var(--white); color: var(--blue);
  font-weight: 700; font-size: .925rem; border: none; cursor: pointer; white-space: nowrap; transition: opacity var(--transition);
}
.btn-primary:hover { opacity: .92; }

/* ── ElevenLabs affiliate CTA ── */
a.elevenlabs-cta {
  display: inline-block; margin: 8px 0 4px;
  padding: 14px 28px; border-radius: 10px;
  background: linear-gradient(135deg, #6B21A8, #9333EA);
  color: #fff !important; font-weight: 700; font-size: 1rem;
  text-decoration: none !important; letter-spacing: .01em;
  box-shadow: 0 4px 14px rgba(147,51,234,.35);
  transition: transform .15s ease, box-shadow .15s ease;
}
a.elevenlabs-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(147,51,234,.45);
  text-decoration: none !important;
}

/* ── Footer ── */
.site-footer { background: var(--gray-900); color: #9CA3AF; padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 2fr; gap: 48px; margin-bottom: 40px; }
.footer-col h4 { color: var(--white); font-size: .875rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { color: #9CA3AF; font-size: .875rem; text-decoration: none; }
.footer-col ul a:hover { color: white; }
.footer-about p { font-size: .875rem; line-height: 1.7; margin-bottom: 16px; }
.footer-about .footer-legal { font-size: .8rem; margin-top: 12px; }
.footer-about .footer-legal a { color: #6B7280; }
.footer-about .footer-legal a:hover { color: white; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; font-size: 1.1rem; color: white; }
.footer-logo .logo-text strong { color: #60A5FA; }
.footer-bottom { padding-top: 24px; border-top: 1px solid #374151; font-size: .8rem; text-align: center; color: #6B7280; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col:first-child { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  .card-featured { flex-direction: column; gap: 16px; }
  .main-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; background: white; border-bottom: 1px solid var(--gray-300); padding: 16px 24px; gap: 4px; box-shadow: 0 8px 24px rgba(0,0,0,.12); }
  .main-nav.open { display: flex; }
  .mobile-menu-btn { display: flex; }
  .hero { padding: 56px 0 48px; }
  section.content-section { padding: 48px 0; }
  .articles-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ── Utilities ── */
.text-muted { color: var(--gray-500); }
.divider { border: none; border-top: 1px solid var(--gray-300); margin: 48px 0; }