@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;600;800&family=JetBrains+Mono:wght@400;700&display=swap');

html, body {
    background: linear-gradient(to bottom, rgba(2, 6, 23, 0.88), rgba(2, 6, 23, 0.95)), 
                url('img.png') no-repeat center center fixed !important;
    background-size: cover !important;
    color: #f1f5f9 !important;
    font-family: 'Plus Jakarta Sans', sans-serif;
    margin: 0; padding: 0; min-height: 100vh; overflow-x: hidden;
}

.mono { font-family: 'JetBrains Mono', monospace; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(1, minmax(0, 1fr)); gap: 24px; }

@media (min-width: 768px) {
    .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .col-span-2 { grid-column: span 2 / span 2; }
    .col-span-3 { grid-column: span 3 / span 3; }
}

/* Bod 5: Stylování interaktivního Sticky panelu na horním okraji */
#sticky-nav {
    position: fixed; top: -80px; left: 0; width: 100%; height: 64px;
    background: rgba(15, 23, 42, 0.75); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-b: 1px solid rgba(255,255,255,0.06); z-index: 1000;
    transition: top 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
    box-sizing: border-box;
}
#sticky-nav.visible { top: 0; }
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; height: 100%; display: flex; justify-content: space-between; align-items: center; }
.nav-logo { font-size: 14px; font-weight: 800; font-family: 'Plus Jakarta Sans', sans-serif; letter-spacing: 0.5px; }
.nav-controls { display: flex; gap: 12px; align-items: center; }
.nav-btn { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); color: #fff; padding: 6px 16px; border-radius: 12px; font-family: monospace; font-size: 12px; cursor: pointer; transition: all 0.2s; }
.nav-btn:hover { background: rgba(139, 92, 246, 0.2); border-color: rgba(139, 92, 246, 0.4); }

/* Glassmorphism Bento karty */
.bento-card {
    background-color: rgba(15, 23, 42, 0.65) !important;
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.06); border-radius: 24px; padding: 32px;
    display: flex; flex-direction: column; justify-content: space-between;
    transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), border-color 0.4s ease, box-shadow 0.4s ease;
    position: relative; box-sizing: border-box; text-align: left;
}
.bento-card:hover {
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: 0 10px 40px -10px rgba(139, 92, 246, 0.25);
    transform: translateY(-4px);
}

.source-link { text-decoration: none !important; color: inherit !important; display: block; }
.source-link:hover .bento-card { border-color: rgba(34, 211, 238, 0.4); box-shadow: 0 10px 40px -10px rgba(34, 211, 238, 0.2); }

/* Typografie uvnitř karet */
.bento-card h3 { font-size: 22px; font-weight: 700; margin: 12px 0 8px 0; color: #fff !important; }
.bento-card h4 { font-size: 16px; font-weight: 700; margin: 0; color: #fff !important; }
.bento-card p { color: #94a3b8 !important; font-size: 13px; line-height: 1.6; font-weight: 300; margin: 0; }

/* Bod 1: Krásné vizuální zvýraznění klíčových technických parametrů (Kódový styl) */
.tech-spec-highlight {
    font-family: 'JetBrains Mono', monospace;
    background: rgba(34, 211, 238, 0.08);
    color: #22d3ee;
    padding: 2px 6px;
    border-radius: 6px;
    border: 1px solid rgba(34, 211, 238, 0.15);
    font-size: 12px;
}
.tech-spec-purple {
    background: rgba(139, 92, 246, 0.08);
    color: #c084fc;
    border-color: rgba(139, 92, 246, 0.15);
}

/* Odznaky */
.badge { padding: 4px 12px; border-radius: 9999px; font-size: 11px; width: fit-content; font-weight: 600; display: inline-block; border: 1px solid rgba(255,255,255,0.05); margin-bottom: 8px; }
.purple { background: rgba(139, 92, 246, 0.15); color: #c084fc; border-color: rgba(139, 92, 246, 0.2); }
.cyan { background: rgba(34, 211, 238, 0.15); color: #22d3ee; border-color: rgba(34, 211, 238, 0.2); }
.emerald { background: rgba(16, 185, 129, 0.15); color: #34d399; border-color: rgba(16, 185, 129, 0.2); }
.amber { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border-color: rgba(245, 158, 11, 0.2); }
.rose { background: rgba(244, 63, 94, 0.15); color: #fb7185; border-color: rgba(244, 63, 94, 0.2); }
.text-gradient { background: linear-gradient(to right, #c084fc, #22d3ee); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* Popover okna */
.preview-trigger { position: relative; cursor: help; border-bottom: 1px dashed rgba(255,255,255,0.3); color: #fff; display: inline-block; }
.preview-popover {
    position: absolute; bottom: 130%; left: 50%; transform: translateX(-50%) scale(0.95);
    width: 280px; background: #0f172a; border: 1px solid rgba(139, 92, 246, 0.5);
    border-radius: 16px; padding: 10px; box-shadow: 0 30px 60px -15px rgba(0,0,0,0.9);
    opacity: 0; pointer-events: none; transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
    z-index: 9999 !important;
}
.preview-popover img { width: 100%; height: auto; max-height: 220px; object-fit: contain; border-radius: 10px; display: block; background: #020617; }
.preview-popover-title { font-size: 11px; font-weight: bold; color: #a78bfa; font-family: monospace; margin-top: 8px; text-align: center; }
.preview-trigger:hover .preview-popover { opacity: 1; transform: translateX(-50%) scale(1); pointer-events: auto; }

.model-list-item { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.04); display: flex; justify-content: space-between; align-items: center; }
.model-list-item:last-child { border: none; }

.reveal-node { opacity: 0; transform: translateY(40px); transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1); }
.reveal-node.active { opacity: 1; transform: translateY(0); }