/* ========================================
   EN КАТАЛОЗИ ПО ВЪЗРАСТОВИ ГРУПИ
   Страници: en/resources/{primary,lower-secondary,secondary}/
   Зарежда се след style.css, lang-switch.css
   и resource-cover.css.

   Цветовете на етапите следват картите
   от секцията "Choose a school stage".
======================================== */

.catalogue-page {
    --stage-tint-1: #ccefd9;
    --stage-tint-2: #84cfa5;
    --stage-ink: #173b31;
    --stage-accent: #0f6247;

    background: #f7f9fb;
}

.catalogue-primary {
    --stage-tint-1: #fff2ba;
    --stage-tint-2: #f7d983;
    --stage-accent: #7a5a00;
}

.catalogue-lower {
    --stage-tint-1: #ccefd9;
    --stage-tint-2: #84cfa5;
    --stage-accent: #0f6247;
}

.catalogue-secondary {
    --stage-tint-1: #dcd3f4;
    --stage-tint-2: #af9bdc;
    --stage-accent: #4b3a86;
}


/* ========================================
   HERO
======================================== */

.catalogue-hero {
    padding: 64px 0 56px;
    color: var(--stage-ink);
    background:
        radial-gradient(circle at 88% 20%, rgba(255, 255, 255, 0.7), transparent 30%),
        linear-gradient(145deg, var(--stage-tint-1), var(--stage-tint-2));
}

.catalogue-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 40px;
}

.catalogue-back-link {
    display: block;
    width: fit-content;
    margin-bottom: 22px;
    color: var(--stage-accent);
    font-size: 0.9rem;
    font-weight: 800;
    transition: transform 0.25s ease;
}

.catalogue-back-link:hover,
.catalogue-back-link:focus-visible {
    transform: translateX(-4px);
}

.catalogue-age {
    display: inline-block;
    margin: 0 0 16px;
    padding: 7px 13px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.75);
    font-size: 0.85rem;
    font-weight: 800;
}

.catalogue-hero h1 {
    margin: 0;
    font-size: clamp(2.5rem, 6vw, 4.4rem);
    line-height: 1;
    letter-spacing: -0.045em;
}

.catalogue-hero-description {
    max-width: 640px;
    margin: 20px 0 0;
    color: rgba(23, 59, 49, 0.82);
    font-size: 1.08rem;
    line-height: 1.7;
}

.catalogue-hero-symbols {
    display: flex;
    gap: 12px;
    opacity: 0.4;
    font-size: 1.8rem;
    font-weight: 900;
}

.catalogue-hero-symbols span {
    width: 64px;
    height: 64px;
    display: grid;
    place-items: center;
    border: 2px solid currentColor;
    border-radius: 18px;
}


/* ========================================
   ПРЕВКЛЮЧВАНЕ МЕЖДУ ВЪЗРАСТОВИТЕ ГРУПИ
======================================== */

.age-switcher {
    padding: 22px 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

.age-switcher-list {
    margin: 0;
    padding: 0;
    list-style: none;

    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.age-switcher-link {
    height: 100%;
    padding: 14px 18px;

    display: flex;
    flex-direction: column;
    gap: 2px;

    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--white);
    color: var(--navy);

    transition:
        border-color 0.2s ease,
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.age-switcher-link strong {
    font-size: 1rem;
}

.age-switcher-link span {
    color: var(--muted);
    font-size: 0.85rem;
    font-weight: 700;
}

.age-switcher-link:hover,
.age-switcher-link:focus-visible {
    border-color: var(--green);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(11, 46, 79, 0.08);
}

.age-switcher-link[aria-current="page"] {
    border-color: transparent;
    background: linear-gradient(145deg, var(--stage-tint-1), var(--stage-tint-2));
    color: var(--stage-ink);
}

.age-switcher-link[aria-current="page"] span {
    color: rgba(23, 59, 49, 0.78);
}


/* ========================================
   СПИСЪК С РЕСУРСИ
======================================== */

.catalogue-section {
    padding: 72px 0 96px;
}

.catalogue-heading {
    margin-bottom: 34px;

    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 18px;
}

.catalogue-heading h2 {
    margin: 0;
    color: var(--navy);
    font-size: clamp(1.9rem, 3.5vw, 2.6rem);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.catalogue-heading p {
    max-width: 620px;
    margin: 10px 0 0;
    color: var(--muted);
}

.catalogue-count {
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--white);
    color: var(--green);
    font-size: 0.85rem;
    font-weight: 800;
    white-space: nowrap;
}

.catalogue-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.catalogue-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;

    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--white);
}

.catalogue-card-content {
    flex: 1;
    padding: 24px 24px 22px;

    display: flex;
    flex-direction: column;
}

.catalogue-card-content .resource-type {
    margin: 0;
}

.catalogue-card-content h3 {
    margin: 8px 0 0;
    color: var(--navy);
    font-size: 1.3rem;
    line-height: 1.25;
}

.catalogue-card-content .resource-description {
    margin: 10px 0 20px;
    color: var(--muted);
}

/* Статус "English version coming soon" -
   информационен етикет, а не неактивен бутон */
.catalogue-card-status {
    margin-top: auto;
    padding-top: 18px;
    border-top: 1px solid var(--border);

    display: flex;
    align-items: center;
    gap: 8px;

    color: var(--navy);
    font-size: 0.88rem;
    font-weight: 700;
}

.catalogue-card-status::before {
    content: "";
    width: 8px;
    height: 8px;
    flex-shrink: 0;
    border-radius: 50%;
    background: #f2a65a;
    box-shadow: 0 0 0 4px rgba(242, 166, 90, 0.2);
}

/* Активна карта: ресурсът има EN версия.
   Линкът в заглавието покрива цялата карта. */
.catalogue-card-active {
    position: relative;
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease,
        border-color 0.2s ease;
}

.catalogue-card-active:hover,
.catalogue-card-active:focus-within {
    transform: translateY(-6px);
    border-color: rgba(15, 143, 114, 0.4);
    box-shadow: var(--shadow);
}

.catalogue-card-link {
    color: inherit;
}

.catalogue-card-link::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
}

.catalogue-card-link:focus-visible {
    outline: none;
}

.catalogue-card-active:has(.catalogue-card-link:focus-visible) {
    outline: 3px solid var(--green);
    outline-offset: 3px;
}

.catalogue-card-cta {
    margin: auto 0 0;
    padding-top: 18px;
    border-top: 1px solid var(--border);

    color: var(--green);
    font-size: 0.92rem;
    font-weight: 800;
}

.catalogue-note {
    margin: 32px 0 0;
    color: var(--muted);
    font-size: 0.95rem;
}


/* ========================================
   ПРАЗЕН КАТАЛОГ
======================================== */

.catalogue-empty {
    max-width: 760px;
    margin: 0 auto;
    padding: 48px 40px;

    text-align: center;

    border: 1px dashed rgba(11, 46, 79, 0.2);
    border-radius: 28px;
    background: var(--white);
}

.catalogue-empty-symbols {
    margin-bottom: 26px;

    display: flex;
    justify-content: center;
    gap: 10px;

    color: var(--stage-accent);
    font-size: 1.4rem;
    font-weight: 900;
}

.catalogue-empty-symbols span {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: linear-gradient(145deg, var(--stage-tint-1), var(--stage-tint-2));
}

.catalogue-empty h2 {
    margin: 0;
    color: var(--navy);
    font-size: clamp(1.7rem, 3.5vw, 2.3rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.catalogue-empty p {
    max-width: 560px;
    margin: 14px auto 0;
    color: var(--muted);
    font-size: 1.02rem;
}

.catalogue-empty-actions {
    margin-top: 30px;

    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}


/* ========================================
   RESPONSIVE
======================================== */

@media (max-width: 1000px) {
    .catalogue-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 680px) {
    .catalogue-hero {
        padding: 44px 0 40px;
    }

    .catalogue-hero-grid {
        grid-template-columns: 1fr;
    }

    .catalogue-hero-symbols {
        display: none;
    }

    .age-switcher-list {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .age-switcher-link {
        padding: 11px 16px;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
    }

    .catalogue-section {
        padding: 48px 0 72px;
    }

    .catalogue-grid {
        grid-template-columns: 1fr;
    }

    .catalogue-empty {
        padding: 36px 22px;
    }

    .catalogue-empty-actions .button {
        width: 100%;
    }
}