@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

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

:root {
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --bg-muted: #f0f2f5;
  --fg: #111827;
  --fg2: #374151;
  --fg3: #6b7280;
  --accent: #4f46e5;
  --accent2: #7c3aed;
  --accent-soft: #eef2ff;
  --green: #059669;
  --green-soft: #ecfdf5;
  --border: #e5e7eb;
  --border-soft: #f3f4f6;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.1);
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-w: 1140px;
}

html { scroll-behavior: smooth; }
body { font-family: var(--sans); color: var(--fg); line-height: 1.6; -webkit-font-smoothing: antialiased; background: var(--bg); }
a { color: var(--accent); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--accent2); }
img { max-width: 100%; }

/* ===== NAV ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.85); backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 32px;
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.nav-logo {
  font-family: var(--mono); font-weight: 800; color: var(--accent); letter-spacing: -1px;
  white-space: pre; line-height: 1; font-size: 0.55rem; text-decoration: none;
}
.nav-logo:hover { color: var(--accent2); text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { color: var(--fg3); font-size: 0.9rem; font-weight: 500; }
.nav-links a:hover { color: var(--fg); }
.nav-cta {
  background: var(--fg); color: #fff !important; padding: 8px 20px; border-radius: 99px;
  font-weight: 600; font-size: 0.85rem; transition: all 0.15s;
}
.nav-cta:hover { background: var(--accent); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.nav-mobile { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--fg); }

/* ===== HERO ===== */
.hero {
  padding: 140px 32px 80px; text-align: center;
  background: linear-gradient(180deg, var(--accent-soft) 0%, var(--bg) 100%);
}
.hero-inner { max-width: 720px; margin: 0 auto; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 99px;
  padding: 6px 16px; font-size: 0.8rem; font-weight: 500; color: var(--fg3); margin-bottom: 24px;
}
.hero-badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.hero h1 { font-size: 4rem; font-weight: 900; letter-spacing: -2px; line-height: 1.05; margin-bottom: 20px; }
.hero-gradient { background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p { font-size: 1.2rem; color: var(--fg2); line-height: 1.7; max-width: 560px; margin: 0 auto 32px; }
.hero-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px;
  border-radius: 99px; font-weight: 600; font-size: 0.95rem; transition: all 0.2s;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 14px rgba(79,70,229,0.3); }
.btn-primary:hover { background: var(--accent2); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(79,70,229,0.35); }
.btn-ghost { background: var(--bg); color: var(--fg); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ===== TERMINAL DEMO ===== */
.terminal-wrap { max-width: 680px; margin: 48px auto 0; }
.terminal {
  background: #1e1e2e; border-radius: 12px; overflow: hidden;
  box-shadow: var(--shadow-xl); border: 1px solid rgba(255,255,255,0.05);
}
.terminal-bar {
  display: flex; align-items: center; gap: 8px; padding: 14px 20px;
  background: #181825; border-bottom: 1px solid rgba(255,255,255,0.06);
}
.terminal-dot { width: 12px; height: 12px; border-radius: 50%; }
.terminal-dot.r { background: #f38ba8; }
.terminal-dot.y { background: #f9e2af; }
.terminal-dot.g { background: #a6e3a1; }
.terminal-title { margin-left: 12px; font-family: var(--mono); font-size: 0.75rem; color: #6c7086; }
.terminal-body { padding: 20px 24px; font-family: var(--mono); font-size: 0.82rem; line-height: 1.8; color: #cdd6f4; }
.terminal-body .prompt { color: #a6e3a1; }
.terminal-body .cmd { color: #cdd6f4; }
.terminal-body .comment { color: #6c7086; }
.terminal-body .output { color: #89b4fa; }
.terminal-body .tool { color: #f9e2af; }

/* ===== SECTIONS ===== */
.section { padding: 96px 32px; }
.section-alt { background: var(--bg-soft); }
.section-inner { max-width: var(--max-w); margin: 0 auto; }
.section-header { text-align: center; max-width: 600px; margin: 0 auto 56px; }
.section-label {
  font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px;
  color: var(--accent); margin-bottom: 12px;
}
.section-header h2 { font-size: 2.4rem; font-weight: 800; letter-spacing: -1px; line-height: 1.15; margin-bottom: 16px; }
.section-header p { font-size: 1.05rem; color: var(--fg3); line-height: 1.7; }

/* ===== FEATURES ===== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px; transition: all 0.2s;
}
.feature-card:hover { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.feature-icon {
  width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; margin-bottom: 16px;
}
.fi-purple { background: #f3e8ff; color: #7c3aed; }
.fi-blue { background: #dbeafe; color: #2563eb; }
.fi-green { background: var(--green-soft); color: var(--green); }
.fi-orange { background: #fff7ed; color: #ea580c; }
.fi-pink { background: #fce7f3; color: #db2777; }
.fi-cyan { background: #ecfeff; color: #0891b2; }
.feature-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 0.88rem; color: var(--fg3); line-height: 1.6; }

/* ===== PROVIDERS ===== */
.providers-row { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; padding: 20px 0; }
.provider-item { text-align: center; }
.provider-icon {
  width: 64px; height: 64px; border-radius: 16px; background: var(--bg); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; margin: 0 auto 10px;
  font-size: 1.4rem; transition: all 0.2s;
}
.provider-item:hover .provider-icon { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.provider-name { font-size: 0.8rem; font-weight: 600; color: var(--fg3); }

/* ===== CODE EXAMPLE ===== */
.example-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.example-text h3 { font-size: 1.6rem; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 16px; }
.example-text p { color: var(--fg3); margin-bottom: 20px; line-height: 1.7; }
.example-list { list-style: none; }
.example-list li { padding: 8px 0; color: var(--fg2); font-size: 0.92rem; display: flex; align-items: flex-start; gap: 10px; }
.example-list li::before { content: "✓"; color: var(--green); font-weight: 700; flex-shrink: 0; }

/* ===== AGENTS SHOWCASE ===== */
.agents-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.agent-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; transition: all 0.2s;
}
.agent-card:hover { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.agent-name { font-family: var(--mono); font-weight: 600; font-size: 0.92rem; color: var(--accent); margin-bottom: 6px; }
.agent-desc { font-size: 0.85rem; color: var(--fg3); line-height: 1.5; margin-bottom: 12px; }
.agent-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
  font-size: 0.68rem; font-weight: 600; padding: 3px 10px; border-radius: 99px;
  background: var(--bg-muted); color: var(--fg3); letter-spacing: 0.3px;
}
.tag-accent { background: var(--accent-soft); color: var(--accent); }

/* ===== FAQ ===== */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  width: 100%; background: none; border: none; text-align: left; cursor: pointer;
  padding: 24px 0; font-family: var(--sans); font-size: 1.05rem; font-weight: 600;
  color: var(--fg); display: flex; justify-content: space-between; align-items: center;
}
.faq-q:hover { color: var(--accent); }
.faq-arrow { font-size: 1.2rem; color: var(--fg3); transition: transform 0.2s; }
.faq-item.open .faq-arrow { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 0 24px; color: var(--fg3); font-size: 0.92rem; line-height: 1.7; }
.faq-item.open .faq-a { display: block; }

/* ===== DOCS LINKS ===== */
.docs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.docs-card {
  display: block; padding: 24px; border: 1px solid var(--border); border-radius: var(--radius);
  transition: all 0.2s; text-decoration: none;
}
.docs-card:hover { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-2px); text-decoration: none; }
.docs-card-title { font-weight: 700; color: var(--fg); margin-bottom: 4px; font-size: 0.95rem; }
.docs-card-desc { font-size: 0.82rem; color: var(--fg3); line-height: 1.5; }

/* ===== CTA ===== */
.cta {
  text-align: center; padding: 96px 32px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  color: #fff;
}
.cta h2 { font-size: 2.4rem; font-weight: 800; letter-spacing: -1px; margin-bottom: 16px; }
.cta p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 32px; max-width: 500px; margin-left: auto; margin-right: auto; }
.btn-white { background: #fff; color: var(--accent); }
.btn-white:hover { color: var(--accent2); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }

/* ===== FOOTER ===== */
.footer { background: var(--fg); color: rgba(255,255,255,0.7); padding: 64px 32px 40px; }
.footer-inner { max-width: var(--max-w); margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .footer-logo {
  font-family: var(--mono); font-weight: 800; color: #fff;
  white-space: pre; line-height: 1; font-size: 0.55rem; margin-bottom: 16px;
}
.footer-brand p { font-size: 0.88rem; line-height: 1.6; max-width: 280px; }
.footer-col h4 { color: #fff; font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 16px; }
.footer-col a { display: block; color: rgba(255,255,255,0.6); font-size: 0.88rem; padding: 4px 0; transition: color 0.15s; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center; font-size: 0.82rem;
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: #fff; }

/* ===== LANGUAGE TOGGLE ===== */
.lang-toggle {
  display: inline-flex; border: 1px solid var(--border); border-radius: 99px; overflow: hidden;
  font-size: 0.78rem; font-weight: 600; margin-left: 12px;
}
.lang-btn {
  padding: 5px 14px; cursor: pointer; background: none; border: none;
  font-family: var(--sans); font-weight: 600; font-size: 0.78rem;
  color: var(--fg3); transition: all 0.12s; text-decoration: none;
}
.lang-btn:hover { color: var(--fg); }
.lang-btn.active { background: var(--accent); color: #fff; }
[data-lang="sr"] { display: none; }
html.sr [data-lang="en"] { display: none; }
html.sr [data-lang="sr"] { display: revert; }

/* ===== FLOW DIAGRAMS ===== */
.flow { max-width: 720px; margin: 0 auto; }
.flow-row { display: flex; align-items: center; justify-content: center; gap: 12px; margin: 8px 0; flex-wrap: wrap; }
.flow-col { display: flex; flex-direction: column; align-items: center; gap: 8px; margin: 8px 0; }
.flow-box {
  padding: 14px 24px; border-radius: 10px; font-size: 0.88rem; font-weight: 600;
  text-align: center; min-width: 140px; transition: transform 0.15s;
}
.flow-box:hover { transform: translateY(-2px); }
.flow-primary { background: var(--accent); color: #fff; }
.flow-secondary { background: var(--bg-soft); border: 2px solid var(--border); color: var(--fg); }
.flow-accent { background: var(--accent-soft); border: 2px solid var(--accent); color: var(--accent); }
.flow-green { background: var(--green-soft); border: 2px solid var(--green); color: #065f46; }
.flow-orange { background: #fff7ed; border: 2px solid #f97316; color: #9a3412; }
.flow-pink { background: #fce7f3; border: 2px solid #ec4899; color: #9d174d; }
.flow-purple { background: #f3e8ff; border: 2px solid #8b5cf6; color: #5b21b6; }
.flow-small { padding: 8px 16px; font-size: 0.78rem; min-width: auto; }
.flow-arrow {
  color: var(--fg3); font-size: 1.2rem; display: flex; align-items: center; justify-content: center;
}
.flow-arrow-down { transform: rotate(90deg); }
.flow-label { font-size: 0.72rem; color: var(--fg3); font-weight: 500; text-align: center; margin-top: -4px; }
.flow-group {
  border: 2px dashed var(--border); border-radius: 12px; padding: 20px;
  background: var(--bg); margin: 12px 0;
}
.flow-group-title {
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px;
  color: var(--fg3); margin-bottom: 12px; text-align: center;
}
.flow-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; }
.flow-grid .flow-box { min-width: auto; font-size: 0.8rem; padding: 10px 12px; }

/* ===== SUBPAGE STYLES ===== */

/* Page hero (smaller than index) */
.page-hero {
  padding: 120px 32px 48px; text-align: center;
  background: linear-gradient(180deg, var(--accent-soft) 0%, var(--bg) 100%);
}
.page-hero h1 { font-size: 2.8rem; font-weight: 900; letter-spacing: -1.5px; margin-bottom: 12px; }
.page-hero p { font-size: 1.1rem; color: var(--fg2); max-width: 560px; margin: 0 auto; }

/* Steps */
.steps { max-width: 720px; margin: 0 auto; }
.step {
  display: flex; gap: 24px; margin-bottom: 40px; position: relative;
}
.step-num {
  width: 48px; height: 48px; min-width: 48px; border-radius: 50%;
  background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem;
}
.step-content { flex: 1; }
.step-content h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.step-content p { color: var(--fg3); margin-bottom: 12px; }
.step-code {
  background: #1e1e2e; border-radius: 8px; padding: 16px 20px;
  font-family: var(--mono); font-size: 0.82rem; color: #cdd6f4;
  overflow-x: auto; line-height: 1.7;
}
.step-code .dim { color: #6c7086; }

/* Platform tabs */
.platform-tabs { display: flex; gap: 8px; margin-bottom: 24px; justify-content: center; }
.platform-tab {
  padding: 10px 24px; border-radius: 99px; border: 1px solid var(--border);
  background: var(--bg); font-weight: 600; font-size: 0.88rem; cursor: pointer;
  transition: all 0.15s; color: var(--fg3); font-family: var(--sans);
}
.platform-tab:hover { border-color: var(--accent); color: var(--accent); }
.platform-tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.platform-content { display: none; }
.platform-content.active { display: block; }

/* Timeline */
.timeline { max-width: 760px; margin: 0 auto; position: relative; }
.timeline::before {
  content: ''; position: absolute; left: 23px; top: 0; bottom: 0;
  width: 2px; background: var(--border);
}
.timeline-item { display: flex; gap: 24px; margin-bottom: 48px; position: relative; }
.timeline-dot {
  width: 48px; min-width: 48px; height: 48px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent); display: flex;
  align-items: center; justify-content: center; z-index: 1;
  font-size: 0.9rem; color: var(--accent);
}
.timeline-item:first-child .timeline-dot { background: var(--accent); color: #fff; }
.timeline-body { flex: 1; }
.timeline-version {
  font-family: var(--mono); font-weight: 700; font-size: 1.1rem; color: var(--accent); margin-bottom: 2px;
}
.timeline-date { font-size: 0.8rem; color: var(--fg3); margin-bottom: 12px; }
.timeline-body ul { list-style: none; margin: 0; padding: 0; }
.timeline-body li {
  padding: 6px 0; color: var(--fg2); font-size: 0.9rem; line-height: 1.6;
  border-bottom: 1px solid var(--border-soft);
}
.timeline-body li:last-child { border-bottom: none; }
.timeline-body li strong { color: var(--fg); }

/* Comparison table */
.comparison { max-width: 860px; margin: 0 auto; overflow-x: auto; }
.comparison table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.comparison th {
  background: var(--bg-soft); padding: 14px 16px; text-align: left;
  font-weight: 700; border-bottom: 2px solid var(--border); color: var(--fg);
}
.comparison td { padding: 12px 16px; border-bottom: 1px solid var(--border-soft); color: var(--fg2); }
.comparison tr:hover { background: var(--bg-soft); }
.comparison .check { color: var(--green); font-weight: 700; }
.comparison .cross { color: #ef4444; }
.comparison .partial { color: #f59e0b; }

/* MCP server cards */
.mcp-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.mcp-card {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 24px;
  transition: all 0.2s;
}
.mcp-card:hover { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.mcp-card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.mcp-card-icon {
  width: 40px; height: 40px; border-radius: 10px; display: flex;
  align-items: center; justify-content: center; font-size: 1rem;
}
.mcp-card-name { font-weight: 700; font-size: 1rem; }
.mcp-card-desc { font-size: 0.85rem; color: var(--fg3); line-height: 1.6; margin-bottom: 12px; }
.mcp-card-status {
  font-size: 0.72rem; font-weight: 600; padding: 3px 10px; border-radius: 99px;
  display: inline-block;
}
.status-included { background: var(--green-soft); color: var(--green); }
.status-community { background: #eff6ff; color: #2563eb; }
.status-planned { background: #fef3c7; color: #d97706; }

/* Diagram boxes */
.diagram {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px; margin: 24px 0; overflow-x: auto;
}
.diagram pre {
  font-family: var(--mono); font-size: 0.78rem; line-height: 1.5;
  color: var(--fg2); margin: 0; background: none;
}

/* Arch cards */
.arch-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; margin: 24px 0; }
.arch-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 20px; text-align: center;
}
.arch-card i { font-size: 1.5rem; color: var(--accent); margin-bottom: 10px; display: block; }
.arch-card h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; }
.arch-card p { font-size: 0.8rem; color: var(--fg3); }

/* Troubleshooting */
.trouble-item {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; margin-bottom: 16px;
}
.trouble-item h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.trouble-item h3 i { color: #ef4444; }
.trouble-item p { font-size: 0.88rem; color: var(--fg3); line-height: 1.6; }

/* ===== RESPONSIVE ===== */ */
@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .example-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-mobile { display: block; }
  .hero { padding: 120px 20px 60px; }
  .hero h1 { font-size: 2.4rem; letter-spacing: -1px; }
  .hero p { font-size: 1rem; }
  .section { padding: 64px 20px; }
  .section-header h2 { font-size: 1.8rem; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .providers-row { gap: 24px; }
}