.data-card {
    position: relative;
    background-image: linear-gradient(90deg, var(--card-a), var(--card-b), var(--card-a));
    background-size: 200% 100%;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    box-shadow: var(--shadow-md);
    color: var(--text);
    /* animation: waveEffect 10s infinite linear; */ /* Animace pro vlny */
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
}

.data-card.opakovani {
    background-image: linear-gradient(90deg, var(--card-rep-a), var(--card-rep-b), var(--card-rep-a));
}

/* ==========================================================================
   4) ŠTÍTKY A VAROVÁNÍ
   ========================================================================== */

.alert-local-warning {
    background-color: var(--warn-bg);
    border-left: 4px solid var(--danger-soft);
    color: var(--text);
    padding: 12px 16px;
    margin-bottom: 16px;
    border-radius: 6px;
    font-size: 14px;
    line-height: 1.4;
}

.alert-local-warning strong { color: var(--danger-soft); }

/* Varianty štítků (.badges-container) zatím nemají vlastní barvy */
.badges-container {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
    align-items: center;
}

/* PRŮVODCE*/
.guide-banner {
    position: fixed;
    bottom: 0;
    right: 20px;
    width: 280px;
    transform: translateY(-50%) translateX(150%);   /* mimo obrazovku */
    opacity: 0;
    background-color: var(--banner-bg);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 20px;
    color: var(--banner-text);
    z-index: 9999;
    transition: all 0.5s ease;
    gap: 10px;
}

.guide-banner.show {
    transform: translateY(-50%) translateX(0);
    opacity: 1;
}

.guide-banner h3 {
    margin-top: 0;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--purple-strong);
}

.guide-banner span {
    bottom: 13px;
    position: relative;
}

.notification-box {
    display: flex;
    align-items: center;
    gap: 16px;
    background-color: transparent;
    border: 1px solid var(--purple-light);
    border-radius: 12px;
    padding: 10px 20px;
    max-width: 400px;
}

.notification-icon {
    font-size: 32px;
    color: var(--purple-light);
    flex-shrink: 0;
}

.notification-content { flex-grow: 1; }

.notification-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--purple-light);
    text-align: center;
    margin: 5px;
}

.karticka-opakovani {
    position: fixed;
    top: -16px;
    right: -7px;
    background-color: var(--purple);
    padding: 4px 10px;
    border-radius: 8px;
    z-index: 2;
}

.karticka-opakovani-2 {
    font-size: 12px;
    position: fixed;
    top: 5px;
    left: 5px;
    background-color: var(--purple);
    padding: 4px 10px;
    border-radius: 8px;
}

/* TLAČÍTKA-------------------- */

.btn3 {
    display: inline-block;
    padding: 8px 16px;
    background-color: var(--purple-strong);
    color: var(--on-strong);
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    text-decoration: none;
    transition: background 0.2s ease;
    border: none;
}
.btn3:hover { background-color: var(--purple-strong-hover); }

/* ==========================================================================
   3) NAVIGACE A PŘIHLÁŠENÍ (mobil / tablet)
   ========================================================================== */

@media (max-width: 1000px) {
    body { font-size: 14px; }

    #menu {
        position: absolute;
        left: 10px;
        top: 140px;
        background: var(--surface-sunken);
        padding: 10px;
        border-radius: 10px;
        display: none;              /* menu je na začátku skryté */
        box-shadow: var(--shadow-md);
        z-index: 10;
    }

    #menu ul {
        display: flex;
        flex-direction: column;     /* položky pod sebou */
        list-style: none;
        padding: 0;
        margin: 0;
        gap: 5px;
        z-index: 10;
    }

    #menu li {
        display: block;
        z-index: 10;
    }

    #menu a {
        display: block;
        padding: 10px 15px;
        border-radius: 5px;
        background-color: var(--popup-bg);
        color: var(--text);
        text-decoration: none;
        transition: background 0.3s;
        z-index: 10;
    }

    #menu a:hover {
        background-color: var(--nav-hover);
        color: var(--on-strong);
    }

    /* Hamburger menu */
    #menu-toggle {
        margin: 10px;
        display: flex;
    }

    #menu.active { display: block; }

    .prihlaseni {
        flex-direction: column;     /* tlačítka pod sebe */
        display: flex;
    }

    .prihlaseni a { margin-bottom: 8px; }
    .prihlaseni a:last-child { margin-bottom: 0; }
}

@media (max-width: 400px) {
    .topbar .prihlaseni { display: none; }
}