/*
 * nav.css — sdílené styly navigace pro všechny stránky
 * Stránky, které nenačítají cottage.css, odkazují na tento soubor.
 */
@import url('https://fonts.googleapis.com/css2?family=Libre+Baskerville:wght@400;700&family=Open+Sans:wght@300;400;600;700&display=swap');

:root {
    --primary-color: #3a3a3a;
    --secondary-color: #c8d5c4;
    --accent-color: #c85a3a;
    --accent-warm: #b8826f;
    --font-header: 'Libre Baskerville', serif;
    --font-body: 'Open Sans', sans-serif;
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
}

.nav {
    position: sticky;
    top: 0;
    margin: 0;
    background: rgba(58, 58, 58, 0.96);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-md);
    font-family: var(--font-body);
}

.nav-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    padding: 12px max(16px, env(safe-area-inset-right)) 12px max(16px, env(safe-area-inset-left));
    padding-top: calc(12px + env(safe-area-inset-top));
}

.nav-logo {
    font-family: var(--font-header);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 400;
    font-size: 1rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--secondary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px; left: 0;
    width: 0; height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Highlighted nav buttons */
.nav-link-practical {
    background: var(--accent-color);
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.nav-link-practical:hover {
    background: var(--accent-warm) !important;
    color: white !important;
}

.nav-link-practical::after {
    display: none !important;
}

.nav-link-music {
    background: var(--secondary-color);
    color: var(--primary-color) !important;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.nav-link-music:hover {
    background: #aec2aa !important;
    color: var(--primary-color) !important;
}

.nav-link-music::after {
    display: none !important;
}

.nav-phone a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
}

/* Navigation stays in document flow; anchors clear the sticky bar. */
html { scroll-padding-top: calc(var(--nav-height, 80px) + 16px); }
.nav, .nav * { box-sizing: border-box; }
.nav [hidden] { display: none !important; }
.nav-logo, .nav-phone { flex-shrink: 0; }
.nav-panel { display: flex; align-items: center; gap: 1.5rem; }
.nav-toggle {
    font: inherit;
    font-weight: 600;
    color: white;
    background: transparent;
    border: 1px solid rgba(255,255,255,.6);
    border-radius: 5px;
    min-height: 44px;
    padding: 8px 12px;
    cursor: pointer;
}
.nav a:focus-visible, .nav-toggle:focus-visible {
    outline: 3px solid var(--secondary-color);
    outline-offset: 4px;
}

@media (max-width: 1200px) {
    .nav:has(.nav-toggle[hidden]) { position: static; }
    .nav-content { flex-wrap: wrap; gap: 0; }
    .nav-logo { font-size: clamp(1rem, 4.5vw, 1.5rem); }
    .nav-panel {
        flex-basis: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        max-height: calc(100vh - var(--nav-height, 80px) - env(safe-area-inset-bottom));
        max-height: calc(100dvh - var(--nav-height, 80px) - env(safe-area-inset-bottom));
        overflow-y: auto;
        padding: 12px 4px max(12px, env(safe-area-inset-bottom));
    }
    .nav-links { flex-direction: column; align-items: stretch; gap: 4px; }
    .nav-links a, .nav-phone a { display: block; padding: 10px 12px; min-height: 44px; }
    .nav-links a::after { display: none; }
}