/* ═══════════════════════════════════════════════════════════════
   Not Even Delta – hlavní stylesheet
   ═══════════════════════════════════════════════════════════════ */

/* ── Reset & base ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --clr-black:   #0d0d0d;
    --clr-dark:    #1a1a1a;
    --clr-grey:    #2e2e2e;
    --clr-mid:     #555;
    --clr-light:   #f5f5f5;
    --clr-white:   #ffffff;
    --clr-accent:  #c0392b;   /* červená – střelecká barva terče */
    --clr-accent2: #e74c3c;
    --ff-heading:  'Oswald', 'Arial Narrow', Arial, sans-serif;
    --ff-body:     'Open Sans', Arial, sans-serif;
    --radius:      4px;
    --transition:  0.25s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--ff-body);
    background: var(--clr-white);
    color: var(--clr-dark);
    line-height: 1.6;
}

img { max-width: 100%; height: auto; display: block; }
a   { color: var(--clr-accent); text-decoration: none; }
a:hover { color: var(--clr-accent2); }

/* ── Typography ──────────────────────────────────────────────── */
h1, h2, h3, h4 {
    font-family: var(--ff-heading);
    letter-spacing: 0.04em;
    line-height: 1.2;
}

/* ── Utility ─────────────────────────────────────────────────── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-title {
    font-size: 2rem;
    text-transform: uppercase;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}
.section-title::after {
    content: '';
    display: block;
    width: 3rem;
    height: 3px;
    background: var(--clr-accent);
    margin-top: 0.4rem;
}

section { padding: 4.5rem 0; }

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: var(--radius);
    font-family: var(--ff-heading);
    font-size: 1rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
    border: 2px solid transparent;
}
.btn-primary {
    background: var(--clr-accent);
    color: var(--clr-white);
    border-color: var(--clr-accent);
}
.btn-primary:hover {
    background: var(--clr-accent2);
    border-color: var(--clr-accent2);
    color: var(--clr-white);
}
.btn-outline {
    background: transparent;
    border-color: var(--clr-white);
    color: var(--clr-white);
}
.btn-outline:hover {
    background: var(--clr-white);
    color: var(--clr-dark);
}

/* ── Navigation ──────────────────────────────────────────────── */
#site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(13,13,13,0.92);
    backdrop-filter: blur(6px);
    border-bottom: 2px solid var(--clr-accent);
    overflow: visible;
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.site-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    line-height: 0;
    /* allow the image to overflow upward without clipping */
    overflow: visible;
}
.site-logo img {
    height: 100px;
    width: auto;
    /* overflow: 18px above the bar, 18px below */
    margin-top: -18px;
    margin-bottom: -18px;
    filter: drop-shadow(0 3px 8px rgba(0,0,0,0.6));
    transition: transform var(--transition);
    flex-shrink: 0;
}
.site-logo img:hover { transform: scale(1.05); }
.site-logo-text {
    font-family: var(--ff-heading);
    font-size: 1.4rem;
    letter-spacing: 0.06em;
    color: var(--clr-white);
    text-transform: uppercase;
    line-height: 1.1;
}
.site-logo-text em {
    font-style: normal;
    color: var(--clr-accent);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}
nav ul li a {
    color: var(--clr-light);
    font-size: 0.9rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: color var(--transition);
}
nav ul li a:hover { color: var(--clr-accent); }

/* Hamburger – mobile */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}
.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--clr-white);
    transition: transform var(--transition), opacity var(--transition);
}

/* ── User account button ─────────────────────────────────────── */
.user-account-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--clr-mid);
    color: var(--clr-light);
    margin-left: 1.25rem;
    transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.user-account-btn:hover {
    border-color: var(--clr-accent);
    color: var(--clr-accent);
    background: rgba(192, 57, 43, 0.12);
}
.user-account-btn svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ── Hero ────────────────────────────────────────────────────── */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background:
        linear-gradient(to bottom, rgba(13,13,13,0.65) 0%, rgba(13,13,13,0.45) 60%, rgba(192,57,43,0.5) 100%),
        url('../img/background.jpg') center/cover no-repeat fixed;
    color: var(--clr-white);
    text-align: center;
    padding-top: 64px;   /* offset fixed nav */
}
.hero-content { max-width: 700px; margin: 0 auto; }

.hero-logo {
    width: clamp(180px, 30vw, 280px);
    height: auto;
    margin: 0 auto 1.5rem;
    filter: drop-shadow(0 4px 24px rgba(0,0,0,0.7));
    /* pop above the hero – slightly larger than the header bar */
    position: relative;
    z-index: 1;
}
.hero-subtitle {
    font-size: 1rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--clr-accent);
    margin-bottom: 1rem;
}
.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}
.hero-desc {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}
.hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ── O nás ───────────────────────────────────────────────────── */
#o-nas { background: var(--clr-white); }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}
.about-text p { margin-bottom: 1rem; color: var(--clr-mid); }
.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}
.stat-box {
    background: var(--clr-light);
    border-left: 4px solid var(--clr-accent);
    padding: 1.5rem;
    border-radius: var(--radius);
    text-align: center;
}
.stat-number {
    font-family: var(--ff-heading);
    font-size: 2.5rem;
    color: var(--clr-accent);
}
.stat-label { font-size: 0.85rem; color: var(--clr-mid); text-transform: uppercase; letter-spacing: 0.05em; }

/* ── Disciplíny ──────────────────────────────────────────────── */
#discipliny { background: var(--clr-light); }
.disciplines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}
.discipline-card {
    background: var(--clr-white);
    border-radius: var(--radius);
    padding: 2rem 1.5rem;
    border-top: 4px solid var(--clr-accent);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: transform var(--transition), box-shadow var(--transition);
}
.discipline-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}
.discipline-card .icon { font-size: 2.5rem; margin-bottom: 1rem; }
.discipline-card h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }
.discipline-card p { font-size: 0.9rem; color: var(--clr-mid); }

/* ── Fórum CTA ───────────────────────────────────────────────── */
#forum-cta {
    background: var(--clr-dark);
    color: var(--clr-white);
    text-align: center;
}
.forum-cta-inner { max-width: 600px; margin: 0 auto; }
.forum-cta-inner p { opacity: 0.85; margin: 1rem 0 2rem; font-size: 1.05rem; }

/* ── Aktuality ───────────────────────────────────────────────── */
#aktuality { background: var(--clr-white); }
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}
.news-card {
    border: 1px solid #e5e5e5;
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow var(--transition);
}
.news-card:hover { box-shadow: 0 6px 18px rgba(0,0,0,0.08); }
.news-card-body { padding: 1.25rem; }
.news-meta { font-size: 0.8rem; color: var(--clr-mid); margin-bottom: 0.5rem; }
.news-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.news-card p { font-size: 0.9rem; color: var(--clr-mid); }
.news-card a.read-more { display: inline-block; margin-top: 0.75rem; font-size: 0.85rem; font-weight: 600; }

/* ── Kontakt ─────────────────────────────────────────────────── */
#kontakt { background: var(--clr-light); }
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}
.contact-info h3 { font-size: 1.3rem; margin-bottom: 1rem; }
.contact-info ul { list-style: none; }
.contact-info ul li { margin-bottom: 0.75rem; color: var(--clr-mid); font-size: 0.95rem; }
.contact-info ul li strong { color: var(--clr-dark); }

.contact-form label  { display: block; margin-bottom: 0.3rem; font-size: 0.85rem; font-weight: 600; color: var(--clr-dark); }
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.65rem 0.9rem;
    border: 1px solid #ccc;
    border-radius: var(--radius);
    font-family: var(--ff-body);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    transition: border-color var(--transition);
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--clr-accent);
}
.contact-form textarea { min-height: 130px; resize: vertical; }

/* ── Footer ──────────────────────────────────────────────────── */
#site-footer {
    background: var(--clr-black);
    color: rgba(255,255,255,0.6);
    text-align: center;
    padding: 2rem 1rem;
    font-size: 0.85rem;
}
#site-footer a { color: var(--clr-accent); }

/* ── Form status message ─────────────────────────────────────── */
.form-status {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}
.form-status--error   { background: #fdecea; color: #c0392b; border: 1px solid #c0392b; }
.form-status--success { background: #eafaf1; color: #1e8449; border: 1px solid #1e8449; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 768px) {
    .about-grid,
    .contact-grid { grid-template-columns: 1fr; }

    /* Hide the whole nav element; show it as a dropdown when open */
    #site-navigation { display: none; }
    #site-navigation.open {
        display: block;
        position: absolute;
        top: 64px; left: 0; right: 0;
        background: var(--clr-black);
        padding: 1rem 1.5rem;
        z-index: 99;
    }
    #site-navigation ul { display: flex; flex-direction: column; gap: 0; }
    nav ul li a { display: block; padding: 0.5rem 0; }

    /* Toggle is the last flex child → pushed to the far right by space-between */
    .nav-toggle { display: flex; margin-left: auto; }
}