/* ===== BLOG SHARED STYLES ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --ov-teal: #0D5C63; --ov-teal-light: #12747D; --ov-accent: #2EA89A;
  --ov-gold: #C8A96E; --ov-cream: #FAF9F6; --ov-mint: #E8F4F5;
  --ov-dark: #1A2A2B; --ov-mid: #4A6568; --ov-white: #FFFFFF;
  --font-logo: 'El Messiri', serif; --font-display: 'Lora', serif;
  --font-body: 'Source Sans 3', sans-serif;
  --radius-md: 12px; --radius-lg: 16px; --radius-xl: 30px;
  --shadow-btn: 0 4px 14px rgba(13,92,99,0.25);
  --shadow-float: 0 8px 32px rgba(13,92,99,0.14);
  --presale-h: 44px;
}
body { font-family: var(--font-body); color: var(--ov-dark); background: var(--ov-white); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* Presale Banner */
.presale-banner { position: fixed; top: 0; left: 0; right: 0; z-index: 1100; height: var(--presale-h); background: #051E20; display: flex; align-items: center; justify-content: center; }
.presale-banner__inner { display: flex; align-items: center; gap: 12px; padding: 0 20px; max-width: 1200px; width: 100%; }
.presale-banner__badge { font-family: var(--font-body); font-weight: 700; font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; background: var(--ov-gold); color: #051E20; padding: 3px 10px; border-radius: 4px; white-space: nowrap; }
.presale-banner__text { font-size: 14px; color: rgba(255,255,255,0.85); flex: 1; }
.presale-banner__text strong { color: #fff; }
.presale-banner__cta { font-weight: 600; font-size: 13px; color: var(--ov-gold); white-space: nowrap; }
.presale-banner__cta:hover { opacity: 0.8; }
.presale-banner__close { background: none; border: none; color: rgba(255,255,255,0.5); font-size: 18px; cursor: pointer; padding: 4px 8px; margin-left: 4px; }
.presale-banner__close:hover { color: #fff; }

/* Header */
.site-header { position: sticky; top: var(--presale-h); z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid rgba(0,0,0,0.06); }
.header-inner { max-width: 1320px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 16px 40px; }
.logo { display: flex; align-items: center; gap: 0; }
.logo img { height: 38px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 2px; background: rgba(255,255,255,0.8); border-radius: 50px; padding: 4px; }
.nav-link { font: 600 16px var(--font-body); color: var(--ov-dark); padding: 6px 22px; border-radius: 30px; transition: all 0.25s; white-space: nowrap; }
.nav-link:hover { background: var(--ov-mint); }
.nav-link.active { background: var(--ov-teal); color: var(--ov-white); }
.nav-dropdown { position: relative; }
.nav-dropdown-menu { display: none; position: absolute; top: 100%; left: 0; background: var(--ov-white); border-radius: var(--radius-md); box-shadow: var(--shadow-float); padding: 8px 0; min-width: 220px; z-index: 200; margin-top: 8px; }
.nav-dropdown:hover .nav-dropdown-menu { display: block; }
.nav-dropdown-menu a { display: block; padding: 10px 20px; font: 400 15px var(--font-body); color: var(--ov-dark); transition: background 0.2s; }
.nav-dropdown-menu a:hover { background: var(--ov-mint); }
.nav-link .dropdown-arrow { display: inline-block; width: 8px; height: 5px; margin-left: 6px; background: currentColor; clip-path: polygon(0 0, 100% 0, 50% 100%); vertical-align: middle; }
.header-ctas { display: flex; align-items: center; gap: 12px; }
.mobile-ctas { display: none; }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.hamburger span { width: 24px; height: 2px; background: var(--ov-dark); border-radius: 2px; transition: all 0.3s; }

/* Buttons */
.btn-primary { display: inline-flex; align-items: center; gap: 0; font: 600 16px var(--font-body); color: var(--ov-white); background: var(--ov-teal); padding: 15px 32px; border-radius: 30px; border: none; cursor: pointer; transition: all 0.25s; white-space: nowrap; box-shadow: var(--shadow-btn); }
.btn-primary:hover { background: var(--ov-teal-light); transform: translateY(-2px); }
.btn-primary .arrow { display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; }
.btn-primary .arrow svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; }
.btn-secondary { font: 600 16px var(--font-body); color: var(--ov-teal); padding: 15px 32px; border-radius: 30px; border: 2px solid rgba(13,92,99,0.2); transition: all 0.25s; }
.btn-secondary:hover { border-color: var(--ov-teal); background: var(--ov-mint); }

/* Article Hero */
.article-hero { background: var(--ov-cream); padding: 100px 24px 60px; text-align: center; }
.article-hero .eyebrow { display: inline-block; font: 700 12px var(--font-body); letter-spacing: 2px; text-transform: uppercase; color: var(--ov-accent); margin-bottom: 16px; }
.article-hero h1 { font: 400 clamp(1.8rem, 4vw, 2.4rem)/1.2 var(--font-display); color: var(--ov-dark); letter-spacing: -1px; max-width: 800px; margin: 0 auto 20px; }
.article-hero h1 em { font-style: italic; color: var(--ov-teal); }
.article-meta { font: 400 14px var(--font-body); color: var(--ov-mid); }
.article-meta span { margin: 0 8px; }

/* Article Body */
.article-body { max-width: 800px; margin: 0 auto; padding: 48px 24px 80px; }
.article-body h2 { font: 400 clamp(1.3rem, 2.5vw, 1.7rem)/1.3 var(--font-display); color: var(--ov-teal); letter-spacing: -0.5px; margin: 48px 0 20px; }
.article-body h3 { font: 600 1.15rem/1.4 var(--font-body); color: var(--ov-dark); margin: 32px 0 12px; }
.article-body p { font: 400 18px/1.75 var(--font-body); color: var(--ov-mid); margin-bottom: 20px; }
.article-body ul, .article-body ol { padding-left: 24px; margin-bottom: 20px; }
.article-body li { font: 400 17px/1.7 var(--font-body); color: var(--ov-mid); margin-bottom: 8px; }
.article-body a { color: var(--ov-teal); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--ov-teal-light); }
.article-body strong { color: var(--ov-dark); }

/* Highlight Box */
.highlight-box { background: var(--ov-cream); border-left: 4px solid var(--ov-teal); padding: 24px 28px; border-radius: 0 var(--radius-md) var(--radius-md) 0; margin: 32px 0; }
.highlight-box p { margin-bottom: 8px; }
.highlight-box p:last-child { margin-bottom: 0; }
.stat-number { font: 700 2rem var(--font-display); color: var(--ov-teal); }

/* Comparison Table */
.table-wrap { overflow-x: auto; margin: 32px 0; border-radius: var(--radius-md); border: 1px solid #e8e8e8; }
.comparison-table { width: 100%; border-collapse: collapse; min-width: 500px; }
.comparison-table th { background: var(--ov-teal); color: var(--ov-white); padding: 16px; text-align: left; font: 600 15px var(--font-body); }
.comparison-table td { padding: 14px 16px; font: 400 16px var(--font-body); color: var(--ov-mid); border-bottom: 1px solid #f0f0f0; }
.comparison-table tr:nth-child(even) { background: var(--ov-cream); }
.comparison-table .check { color: var(--ov-accent); font-weight: 700; }
.comparison-table .cross { color: #c0392b; font-weight: 700; }

/* Specialty Grid */
.specialty-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px 16px; margin: 24px 0 32px; }
.specialty-grid li { font: 400 16px var(--font-body); color: var(--ov-mid); list-style: none; padding: 6px 0 6px 20px; position: relative; }
.specialty-grid li::before { content: "✓"; position: absolute; left: 0; color: var(--ov-accent); font-weight: 700; }

/* FAQ Accordion */
.faq-section { margin: 48px 0; }
.faq-section h2 { text-align: center; margin-bottom: 32px; }
.accordion { display: flex; flex-direction: column; gap: 8px; }
.accordion-item { background: var(--ov-cream); border-radius: var(--radius-lg); overflow: hidden; }
.accordion-header { display: flex; align-items: center; justify-content: space-between; padding: 24px 28px; cursor: pointer; transition: background 0.2s; user-select: none; }
.accordion-header:hover { background: rgba(14,92,99,0.04); }
.accordion-header h3 { font: 400 clamp(16px, 2vw, 20px)/1.3 var(--font-display); color: var(--ov-dark); letter-spacing: -0.3px; margin: 0; }
.accordion-chevron { width: 14px; height: 8px; transition: transform 0.3s; flex-shrink: 0; margin-left: 16px; }
.accordion-chevron svg { width: 100%; height: 100%; stroke: var(--ov-mid); fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.accordion-item.open .accordion-chevron { transform: rotate(180deg); }
.accordion-body { max-height: 0; overflow: hidden; transition: max-height 0.4s cubic-bezier(0.16,1,0.3,1); }
.accordion-item.open .accordion-body { max-height: 600px; }
.accordion-content { padding: 0 28px 24px; font: 400 16px/1.65 var(--font-body); color: var(--ov-mid); }
.accordion-content p { font-size: 16px; margin: 0; }

/* CTA Banner */
.cta-banner { background: linear-gradient(135deg, #0D5C63 0%, #0A3D42 60%, #051E20 100%); padding: 80px 40px; text-align: center; }
.cta-banner h2 { font: 400 clamp(1.5rem, 3vw, 2.2rem)/1.2 var(--font-display); color: var(--ov-white); letter-spacing: -0.5px; margin-bottom: 16px; }
.cta-banner p { font: 400 18px/1.6 var(--font-body); color: rgba(255,255,255,0.75); margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-banner .btn-primary { background: var(--ov-gold); color: #051E20; font-size: 18px; padding: 18px 40px; }
.cta-banner .btn-primary:hover { background: #d4b97a; }

/* Footer */
.site-footer { background: linear-gradient(135deg, #0D5C63 0%, #0A3D42 60%, #051E20 100%); padding: 0 40px 0; }
.footer-inner { max-width: 1280px; margin: 0 auto; }
.footer-top { display: flex; align-items: center; justify-content: space-between; padding: 60px 0 40px; gap: 40px; }
.footer-top h3 { font: 400 clamp(24px, 3vw, 36px)/1.2 var(--font-display); color: var(--ov-white); letter-spacing: -1px; max-width: 500px; }
.newsletter { display: flex; flex-direction: column; gap: 12px; }
.newsletter label { font: 600 13px var(--font-body); letter-spacing: 1px; text-transform: uppercase; color: rgba(255,255,255,0.7); }
.newsletter-row { display: flex; align-items: center; }
.newsletter-input { flex: 1; padding: 14px 24px; border: none; border-radius: 30px; background: rgba(251,249,253,0.6); font: 400 15px var(--font-body); color: var(--ov-white); outline: none; }
.newsletter-input::placeholder { color: rgba(255,255,255,0.7); }
.newsletter-btn { width: 48px; height: 48px; border-radius: 50%; background: var(--ov-white); border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; margin-left: -4px; transition: transform 0.2s; }
.newsletter-btn:hover { transform: scale(1.05); }
.newsletter-btn svg { width: 16px; height: 16px; stroke: var(--ov-teal); fill: none; stroke-width: 2; }
.footer-divider { height: 1px; background: rgba(255,255,255,0.12); }
.footer-columns { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; padding: 48px 0; }
.footer-brand .footer-logo { height: 44px; width: auto; margin-bottom: 20px; }
.footer-brand p { font: 400 16px/1.6 var(--font-body); color: rgba(255,255,255,0.7); max-width: 260px; margin-bottom: 24px; }
.footer-social { display: flex; gap: 8px; }
.footer-social a { width: 40px; height: 40px; border-radius: 50%; background: rgba(181,200,184,0.3); display: flex; align-items: center; justify-content: center; transition: background 0.2s; }
.footer-social a:hover { background: rgba(181,200,184,0.5); }
.footer-social svg { width: 16px; height: 16px; fill: var(--ov-white); }
.footer-col h4 { font: 400 26px/1.3 var(--font-display); color: var(--ov-white); letter-spacing: -0.5px; margin-bottom: 24px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font: 400 15px var(--font-body); color: rgba(255,255,255,0.7); transition: color 0.2s; }
.footer-col a:hover { color: var(--ov-white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding: 24px 0; text-align: center; }
.footer-bottom p { font: 400 14px var(--font-body); color: rgba(255,255,255,0.4); }

/* Reveal Animations */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 1024px) {
  .header-inner { padding: 14px 24px; }
  .nav-links { display: none; }
  .header-ctas { display: none; }
  .hamburger { display: flex; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--ov-white); padding: 16px 24px; box-shadow: var(--shadow-float); border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
  .nav-links.open .mobile-ctas { display: flex; flex-direction: column; gap: 12px; padding-top: 16px; border-top: 1px solid rgba(0,0,0,0.06); margin-top: 8px; }
  .nav-links.open .mobile-ctas .btn-primary, .nav-links.open .mobile-ctas .btn-secondary { width: 100%; justify-content: center; text-align: center; }
  .nav-dropdown-menu { position: static; box-shadow: none; margin-top: 0; padding-left: 16px; }
  .footer-top { flex-direction: column; text-align: center; }
  .footer-columns { grid-template-columns: 1fr 1fr; }
  .cta-banner { padding: 60px 24px; }
}
@media (max-width: 768px) {
  .presale-banner { height: auto; min-height: var(--presale-h); padding: 8px 0; }
  .presale-banner__inner { flex-wrap: wrap; gap: 6px; justify-content: center; }
  .presale-banner__text { text-align: center; font-size: 13px; flex: 0 0 100%; order: 2; }
  .presale-banner__badge { order: 1; }
  .presale-banner__cta { order: 3; }
  .presale-banner__close { order: 4; position: absolute; right: 8px; top: 6px; }
  .article-hero { padding: 80px 16px 48px; }
  .article-body { padding: 32px 16px 60px; }
  .specialty-grid { grid-template-columns: repeat(2, 1fr); }
  .accordion-header { padding: 20px 20px; }
  .accordion-content { padding: 0 20px 20px; }
  .footer-columns { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 480px) {
  .header-inner { padding: 12px 16px; }
  .specialty-grid { grid-template-columns: 1fr; }
}