/* ============================================
   PROKON — Projekce a konstrukce Brno
   Design: Technical / Engineering Blueprint
   Colors: Navy + Electric blue accent
   ============================================ */
:root {
    --primary: #0f1729;
    --primary-mid: #1a2744;
    --primary-light: #2a3a5c;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-dark: #2563eb;
    --bg: #f8fafc;
    --bg-alt: #f0f4f8;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --text-white: #ffffff;
    --border: #e2e8f0;
    --shadow: 0 4px 20px rgba(15,23,41,0.06);
    --radius: 8px;
    --radius-lg: 14px;
    --mono: 'JetBrains Mono', monospace;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'DM Sans', sans-serif; color: var(--text); background: var(--bg); line-height: 1.7; font-size: 16px; }
h1,h2,h3,h4 { font-family: 'DM Sans', sans-serif; line-height: 1.2; font-weight: 700; }
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }

/* Nav */
.nav-bar { position:fixed; top:0; left:0; right:0; z-index:100; background:rgba(255,255,255,0.97); backdrop-filter:blur(12px); border-bottom:1px solid var(--border); }
.nav-bar.scrolled { box-shadow: var(--shadow); }
.nav-logo { display:flex; align-items:center; gap:8px; color:var(--primary); }
.logo-mark { font-size:1.2rem; color:var(--accent); }
.logo-text { font-family: var(--mono); font-size:1rem; font-weight:400; letter-spacing:1px; }
.logo-text strong { font-weight:700; }
.nav-link { font-size:0.9rem; font-weight:500; color:var(--text-light); position:relative; padding-bottom:2px; }
.nav-link:hover,.nav-link.active { color:var(--text); }
.nav-link.active::after { content:''; position:absolute; bottom:-4px; left:0; right:0; height:2px; background:var(--accent); border-radius:1px; }
.btn-cta-nav { background:var(--accent); color:white; padding:8px 18px; border-radius:6px; font-weight:600; font-size:0.85rem; transition:all 0.2s; }
.btn-cta-nav:hover { background:var(--accent-dark); color:white; }
.nav-mobile-btn { background:none; border:none; color:var(--text); cursor:pointer; }
.mobile-menu { background:var(--bg-card); border-top:1px solid var(--border); padding:16px; }
.mobile-link { display:block; padding:12px 16px; color:var(--text); font-weight:500; border-radius:8px; }
.mobile-link:hover,.mobile-link.active { background:var(--bg-alt); color:var(--accent); }

/* Hero */
.hero { padding:120px 0 80px; background:var(--primary); overflow:hidden; }
.hero-grid { display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
.hero-tag { font-family:var(--mono); font-size:0.75rem; color:var(--accent); letter-spacing:2px; text-transform:uppercase; margin-bottom:16px; }
.hero-title { font-size:clamp(2.2rem,5vw,3.5rem); color:var(--text-white); margin-bottom:20px; }
.accent { color:var(--accent); }
.hero-desc { font-size:1.05rem; color:rgba(255,255,255,0.6); max-width:460px; margin-bottom:32px; line-height:1.8; }
.hero-btns { display:flex; gap:12px; flex-wrap:wrap; }

.hero-visual { background:var(--primary-mid); border-radius:var(--radius-lg); aspect-ratio:1; position:relative; overflow:hidden; }
.blueprint-grid { position:absolute; inset:0; background: repeating-linear-gradient(0deg, rgba(59,130,246,0.06) 0px, rgba(59,130,246,0.06) 1px, transparent 1px, transparent 40px), repeating-linear-gradient(90deg, rgba(59,130,246,0.06) 0px, rgba(59,130,246,0.06) 1px, transparent 1px, transparent 40px); }
.blueprint-overlay { position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:24px; }
.bp-stat { text-align:center; }
.bp-num { display:block; font-family:var(--mono); font-size:2.5rem; font-weight:700; color:var(--accent); }
.bp-label { font-size:0.8rem; color:rgba(255,255,255,0.4); }
.bp-line { width:60px; height:1px; background:rgba(59,130,246,0.3); }

/* Buttons */
.btn-primary { display:inline-block; background:var(--accent); color:white; padding:14px 28px; border-radius:6px; font-weight:600; font-size:0.95rem; transition:all 0.2s; border:none; cursor:pointer; }
.btn-primary:hover { background:var(--accent-dark); color:white; transform:translateY(-1px); }
.btn-outline { display:inline-block; color:rgba(255,255,255,0.7); padding:14px 28px; border-radius:6px; font-weight:500; border:1px solid rgba(255,255,255,0.2); transition:all 0.2s; }
.btn-outline:hover { background:rgba(255,255,255,0.1); color:white; }
.btn-outline-light { display:inline-block; color:rgba(255,255,255,0.8); padding:14px 28px; border-radius:6px; font-weight:500; border:1px solid rgba(255,255,255,0.3); transition:all 0.2s; }
.btn-outline-light:hover { background:rgba(255,255,255,0.15); color:white; }
.btn-lg { padding:16px 32px; font-size:1.05rem; }
.btn-full { width:100%; text-align:center; }

/* Capabilities */
.capabilities { padding:80px 0; }
.cap-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.cap-card { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius); padding:32px; transition:all 0.2s; }
.cap-card:hover { box-shadow:var(--shadow); transform:translateY(-2px); border-color:var(--accent); }
.cap-num { font-family:var(--mono); font-size:0.8rem; color:var(--accent); font-weight:600; margin-bottom:16px; letter-spacing:1px; }
.cap-card h3 { font-size:1.15rem; margin-bottom:8px; color:var(--text); }
.cap-card p { font-size:0.9rem; color:var(--text-light); line-height:1.6; }

/* About */
.about-preview { padding:80px 0; background:var(--bg-alt); }
.about-grid { display:grid; grid-template-columns:1.2fr 1fr; gap:64px; align-items:start; }
.section-tag { display:inline-block; font-family:var(--mono); font-size:0.7rem; color:var(--accent); letter-spacing:2px; text-transform:uppercase; margin-bottom:8px; }
.about-content h2 { font-size:clamp(1.6rem,3vw,2.2rem); color:var(--text); margin-bottom:20px; }
.about-content p { font-size:1rem; color:var(--text-light); margin-bottom:16px; line-height:1.8; }
.about-highlights { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-top:24px; }
.highlight-item { display:flex; align-items:center; gap:8px; font-size:0.9rem; font-weight:500; color:var(--text); }
.highlight-icon { font-size:1.1rem; }

.tech-card { background:var(--primary); border-radius:var(--radius-lg); padding:32px; }
.tech-header { font-family:var(--mono); font-size:0.75rem; color:var(--accent); letter-spacing:2px; text-transform:uppercase; margin-bottom:20px; padding-bottom:12px; border-bottom:1px solid rgba(59,130,246,0.2); }
.tech-list { list-style:none; }
.tech-list li { padding:8px 0; color:rgba(255,255,255,0.7); font-size:0.9rem; display:flex; align-items:center; gap:12px; }
.tech-dot { width:6px; height:6px; border-radius:50%; background:var(--accent); display:inline-block; }

/* CTA */
.cta-section { padding:80px 0; background:var(--primary); text-align:center; }
.cta-section h2 { font-size:clamp(1.6rem,4vw,2.4rem); color:white; margin-bottom:12px; }
.cta-section p { color:rgba(255,255,255,0.6); font-size:1.05rem; margin-bottom:32px; }
.cta-btns { display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }

/* Page Header */
.page-header { padding:120px 0 60px; background:var(--primary); text-align:center; }
.page-title { font-size:clamp(2rem,5vw,3rem); color:white; margin-bottom:12px; }
.page-sub { color:rgba(255,255,255,0.6); font-size:1.05rem; max-width:500px; margin:0 auto; }
.page-header .section-tag { color:var(--accent); }

/* Service Blocks */
.service-block { padding:60px 0; }
.service-block.alt { background:var(--bg-alt); }
.service-row { display:flex; gap:32px; align-items:flex-start; }
.service-number { font-family:var(--mono); font-size:2rem; font-weight:700; color:var(--accent); min-width:80px; opacity:0.4; padding-top:4px; }
.service-content h2 { font-size:1.6rem; color:var(--text); margin-bottom:12px; }
.service-desc { font-size:1rem; color:var(--text-light); margin-bottom:20px; line-height:1.8; }
.service-features { display:grid; grid-template-columns:1fr 1fr; gap:8px; }
.feature { font-size:0.9rem; color:var(--text); padding:4px 0; }

/* Contact */
.contact-section { padding:60px 0; }
.contact-layout { display:grid; grid-template-columns:1fr 1.3fr; gap:48px; }
.contact-info { display:flex; flex-direction:column; gap:20px; }
.info-card { background:var(--bg-alt); border-radius:var(--radius); padding:20px; }
.info-card h3 { font-size:0.9rem; color:var(--text); margin-bottom:6px; }
.info-value { font-size:1rem; font-weight:600; color:var(--accent); display:block; }
.info-sub { font-size:0.85rem; color:var(--text-light); }
.contact-form-wrap { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg); padding:36px; }
.form-title { font-size:1.4rem; margin-bottom:4px; }
.form-sub { color:var(--text-light); font-size:0.9rem; margin-bottom:24px; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-group { margin-bottom:16px; }
.form-group label { display:block; font-size:0.8rem; font-weight:600; color:var(--text); margin-bottom:4px; }
.form-group input,.form-group textarea { width:100%; padding:10px 14px; border:1px solid var(--border); border-radius:6px; font-family:inherit; font-size:0.9rem; color:var(--text); background:var(--bg); transition:border-color 0.2s; }
.form-group input:focus,.form-group textarea:focus { outline:none; border-color:var(--accent); box-shadow:0 0 0 3px rgba(59,130,246,0.1); }
.form-group textarea { resize:vertical; }
.form-success { text-align:center; padding:40px 20px; }
.form-success.hidden { display:none; }
.success-icon { font-size:3rem; margin-bottom:16px; }
.form-success h3 { font-size:1.3rem; margin-bottom:8px; }
.form-success p { color:var(--text-light); }

/* Local SEO */
.local-seo { padding:32px 0; }
.seo-text { font-size:0.85rem; color:var(--text-light); }

/* Footer */
.footer { background:var(--primary); color:rgba(255,255,255,0.7); padding:60px 0 0; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr; gap:40px; padding-bottom:40px; }
.footer-logo { display:flex; align-items:center; gap:8px; color:white; margin-bottom:12px; }
.footer-desc { font-size:0.85rem; opacity:0.5; line-height:1.6; }
.footer-heading { font-family:var(--mono); font-size:0.7rem; font-weight:600; text-transform:uppercase; letter-spacing:2px; color:var(--accent); margin-bottom:16px; }
.footer p { font-size:0.85rem; margin-bottom:4px; }
.footer a { color:rgba(255,255,255,0.6); } .footer a:hover { color:white; }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.08); padding:20px 0; text-align:center; }
.footer-bottom p { font-size:0.8rem; opacity:0.4; }

/* Responsive */
@media (max-width:768px) {
    .hero-grid { grid-template-columns:1fr; }
    .hero-visual { max-width:300px; margin:0 auto; }
    .cap-grid { grid-template-columns:1fr; }
    .about-grid { grid-template-columns:1fr; }
    .service-row { flex-direction:column; gap:16px; }
    .service-number { font-size:1.2rem; }
    .service-features { grid-template-columns:1fr; }
    .contact-layout { grid-template-columns:1fr; }
    .form-row { grid-template-columns:1fr; }
    .footer-grid { grid-template-columns:1fr; }
    .about-highlights { grid-template-columns:1fr; }
}