/* ==========================================================================
   SITE 2: CLASHVERGE.HELP - Documentation & Technical Knowledge Base
   Theme: Slate Lavender & Sky Cyan (#0284C7 / #7C3AED / #F8FAFC)
   Layout: Search Bar Hero + 3 Knowledge Hub Cards + Tabbed Code Showcase
   ========================================================================== */
:root {
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --accent-purple: #7c3aed;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --text-title: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", sans-serif;
  --font-mono: "Fira Code", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-sans); color: var(--text-body); background: var(--bg-page); line-height: 1.7; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

/* Header */
.site-header { background: #ffffff; border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 100; }
.nav-container { max-width: 1240px; margin: 0 auto; padding: 0 24px; height: 68px; display: flex; align-items: center; justify-content: space-between; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.3rem; color: var(--text-title); text-decoration: none !important; }
.brand-logo img { width: 34px; height: 34px; border-radius: 50%; }
.doc-tag { font-size: 0.72rem; background: #e0f2fe; color: #0284c7; padding: 2px 8px; border-radius: 4px; font-weight: 700; margin-left: 6px; }
.nav-menu { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-menu a { color: #475569; font-weight: 600; font-size: 0.92rem; padding: 8px 12px; border-radius: 6px; }
.nav-menu a:hover, .nav-menu a.active { color: var(--primary); background: #f1f5f9; }
.nav-cta { display: flex; align-items: center; gap: 10px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 38px; padding: 0 18px; font-weight: 700; font-size: 0.9rem; border-radius: 8px; cursor: pointer; text-decoration: none !important; }
.btn-aff { background: linear-gradient(135deg, #0284c7 0%, #7c3aed 100%); color: #fff !important; box-shadow: 0 2px 10px rgba(2, 132, 199, 0.3); border: none; }
.btn-aff:hover { transform: translateY(-1px); }
.btn-primary { background: #f8fafc; color: var(--text-title) !important; border: 1px solid var(--border-color); }
.btn-primary:hover { background: #f1f5f9; border-color: #cbd5e1; }

/* DOCS KNOWLEDGE HERO WITH SEARCH BAR */
.docs-hero { background: linear-gradient(180deg, #f0f9ff 0%, #f8fafc 100%); padding: 60px 24px 50px; text-align: center; border-bottom: 1px solid var(--border-color); }
.docs-hero-container { max-width: 860px; margin: 0 auto; }
.docs-badge { display: inline-flex; align-items: center; gap: 6px; background: #e0f2fe; color: #0369a1; padding: 4px 14px; border-radius: 6px; font-size: 0.85rem; font-weight: 700; margin-bottom: 18px; }
.docs-hero-title { font-size: 2.6rem; font-weight: 900; color: var(--text-title); margin-bottom: 14px; letter-spacing: -0.01em; }
.docs-hero-desc { font-size: 1.1rem; color: #475569; margin-bottom: 30px; }

/* SEARCH BAR MOCK */
.search-box-mock { background: #ffffff; border: 1.5px solid #cbd5e1; border-radius: 12px; padding: 12px 20px; display: flex; align-items: center; justify-content: space-between; max-width: 580px; margin: 0 auto 30px; box-shadow: 0 4px 15px rgba(0,0,0,0.04); }
.search-left { display: flex; align-items: center; gap: 12px; color: #94a3b8; font-size: 0.95rem; }
.search-kbd { background: #f1f5f9; border: 1px solid #cbd5e1; padding: 2px 8px; border-radius: 4px; font-family: var(--font-mono); font-size: 0.78rem; color: #475569; }

/* 3 KNOWLEDGE PILLARS */
.pillars-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
.pillar-card { background: #ffffff; border: 1px solid var(--border-color); border-radius: 12px; padding: 24px; text-align: left; transition: all 0.2s; box-shadow: 0 2px 8px rgba(0,0,0,0.02); }
.pillar-card:hover { border-color: var(--primary); transform: translateY(-3px); box-shadow: 0 6px 16px rgba(2, 132, 199, 0.1); }
.pillar-icon { width: 44px; height: 44px; background: #f0f9ff; color: var(--primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 16px; }
.pillar-title { font-size: 1.15rem; font-weight: 800; color: var(--text-title); margin-bottom: 8px; }
.pillar-desc { font-size: 0.88rem; color: #64748b; line-height: 1.6; }

/* MAIN CONTENT */
.main-wrapper { max-width: 1240px; margin: 0 auto; padding: 60px 24px; }
.section-header { margin-bottom: 40px; }
.section-tag { font-size: 0.85rem; font-weight: 800; color: var(--primary); text-transform: uppercase; margin-bottom: 6px; }
.section-title { font-size: 2rem; font-weight: 800; color: var(--text-title); margin-bottom: 10px; }
.section-sub { font-size: 1rem; color: var(--text-muted); }

/* TABBED CODE / CONFIG SHOWCASE */
.code-showcase { background: #ffffff; border: 1px solid var(--border-color); border-radius: 14px; overflow: hidden; margin-bottom: 50px; }
.code-tabs { display: flex; background: #f8fafc; border-bottom: 1px solid var(--border-color); padding: 0 16px; }
.c-tab { padding: 12px 20px; font-weight: 700; font-size: 0.88rem; color: #64748b; cursor: pointer; border-bottom: 2px solid transparent; }
.c-tab.active { color: var(--primary); border-bottom-color: var(--primary); background: #ffffff; }
.code-body { background: #0f172a; color: #f8fafc; padding: 24px; font-family: var(--font-mono); font-size: 0.88rem; line-height: 1.7; overflow-x: auto; }
.code-body .cmnt { color: #64748b; }
.code-body .kw { color: #38bdf8; }
.code-body .val { color: #a7f3d0; }

/* Features & Guides */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; margin-bottom: 50px; }
.feature-card { background: #ffffff; border: 1px solid var(--border-color); border-radius: 12px; padding: 26px; }
.feature-card:hover { border-color: var(--primary); }
.feature-icon-box { font-size: 1.4rem; color: var(--primary); margin-bottom: 12px; }
.feature-title { font-size: 1.15rem; font-weight: 800; color: var(--text-title); margin-bottom: 8px; }
.feature-desc { font-size: 0.92rem; color: var(--text-body); line-height: 1.7; }

/* Downloads */
.download-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; margin-bottom: 50px; }
.os-card { background: #ffffff; border: 1px solid var(--border-color); border-radius: 12px; padding: 26px; }
.os-card-header { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; border-bottom: 1px solid #f1f5f9; padding-bottom: 12px; }
.os-icon { font-size: 1.5rem; color: var(--primary); }
.os-title { font-size: 1.25rem; font-weight: 800; }
.os-tag { font-size: 0.8rem; color: var(--text-muted); }
.package-list { list-style: none; }
.package-item { padding: 10px 0; border-bottom: 1px solid #f8fafc; font-size: 0.92rem; }
.pkg-link { font-weight: 700; color: var(--primary); }

/* Steps */
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-bottom: 50px; }
.step-card { background: #ffffff; border: 1px solid var(--border-color); border-radius: 10px; padding: 22px; }
.step-badge { display: inline-block; background: #e0f2fe; color: #0284c7; font-size: 0.82rem; font-weight: 800; padding: 2px 10px; border-radius: 4px; margin-bottom: 12px; }
.step-title { font-size: 1.05rem; font-weight: 800; color: var(--text-title); margin-bottom: 6px; }
.step-desc { font-size: 0.9rem; color: var(--text-muted); }

/* CTA */
.cta-banner { background: #0f172a; color: #fff; border-radius: 12px; padding: 44px 30px; text-align: center; margin: 40px 0; }
.cta-banner h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.cta-banner p { color: #94a3b8; margin-bottom: 24px; font-size: 1.05rem; }

/* FAQ */
.faq-list { max-width: 900px; margin-bottom: 50px; }
.faq-item { border: 1px solid var(--border-color); border-radius: 8px; margin-bottom: 12px; background: #ffffff; }
.faq-question { padding: 16px 20px; font-weight: 800; font-size: 1rem; cursor: pointer; display: flex; justify-content: space-between; }
.faq-answer { padding: 0 20px 16px; color: var(--text-body); font-size: 0.94rem; border-top: 1px solid #f1f5f9; }

/* Article & Content */
.content-card { max-width: 960px; margin: 0 auto 50px; background: #ffffff; border: 1px solid var(--border-color); border-radius: 14px; padding: 42px 48px; box-shadow: 0 2px 12px rgba(2, 132, 199, 0.05); }
.content-card h1 { font-size: 2.2rem; font-weight: 900; color: var(--text-title); margin-bottom: 14px; }
.article-meta { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 24px; padding-bottom: 14px; border-bottom: 1px solid var(--border-color); }
.article-body h3 { font-size: 1.35rem; font-weight: 800; margin: 24px 0 10px; color: var(--text-title); }
.article-body p { margin-bottom: 14px; }
.article-body ul, .article-body ol { margin: 14px 0 20px 24px; }
.article-body code { background: #f1f5f9; padding: 2px 6px; border-radius: 4px; font-family: var(--font-mono); font-size: 0.88em; color: #0284c7; }
.article-body pre { background: #0f172a; color: #f8fafc; padding: 18px; border-radius: 8px; overflow-x: auto; margin: 18px 0; font-family: var(--font-mono); }

.site-footer { background: #ffffff; border-top: 1px solid var(--border-color); padding: 50px 24px 30px; font-size: 0.88rem; color: var(--text-muted); }
.footer-container { max-width: 1240px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 30px; }
.footer-brand h4 { color: var(--text-title); margin-bottom: 10px; font-size: 1.1rem; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-links a { color: var(--text-muted); }
.footer-links a:hover { color: var(--primary); }
.footer-bottom { max-width: 1240px; margin: 0 auto; padding-top: 20px; border-top: 1px solid #f1f5f9; text-align: center; }


/* Subpage Hero & Components */
.subpage-hero { background: linear-gradient(180deg, #f0f9ff 0%, #f8fafc 100%); padding: 54px 20px 44px; text-align: center; border-bottom: 1px solid var(--border-color); width: 100%; }
.subpage-hero-container { max-width: 960px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; text-align: center; padding: 0 20px; }
.breadcrumbs { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 0.86rem; margin-bottom: 18px; padding: 6px 18px; background: #ffffff; border: 1px solid var(--border-color); border-radius: 8px; box-shadow: 0 1px 4px rgba(0,0,0,0.03); }
.breadcrumbs a { color: var(--text-muted); display: inline-flex; align-items: center; gap: 6px; font-weight: 600; text-decoration: none; }
.breadcrumbs a:hover { color: var(--primary); }
.breadcrumbs .sep { font-size: 0.65rem; color: #94a3b8; margin: 0 2px; }
.breadcrumbs .current { color: var(--text-title); font-weight: 700; }
.subpage-title { font-size: 2.35rem; font-weight: 900; color: var(--text-title); margin-bottom: 12px; line-height: 1.25; text-align: center; }
.subpage-desc { font-size: 1.05rem; color: #475569; max-width: 720px; margin: 0 auto; line-height: 1.75; text-align: center; }
.sitemap-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin: 30px 0; }
.sitemap-card { background: #ffffff; border: 1px solid var(--border-color); border-radius: 12px; padding: 22px; box-shadow: 0 2px 8px rgba(0,0,0,0.02); }
.sitemap-card h3 { font-size: 1.15rem; font-weight: 800; color: var(--text-title); margin-bottom: 12px; border-bottom: 1px solid #f1f5f9; padding-bottom: 8px; }
.sitemap-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.sitemap-list a { color: var(--primary); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.sitemap-list a:hover { text-decoration: underline; }
@media (max-width: 800px) {
  .pillars-grid { grid-template-columns: 1fr; }
  .nav-menu { display: none; }
}