:root {
    --bg-color: #f3f4f6;
    --accent: #2563eb;
    --accent-soft: #dbeafe;
    --text: #111827;
    --muted: #6b7280;
    --card-bg: #ffffff;
    --border: #e5e7eb;
    --danger: #ef4444;
    --radius-lg: 1rem;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
    background: var(--bg-color);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

/* Когда открыт лайтбокс — фон чёрный и без прокрутки,
   чтобы не было белой полоски по низу */
body.lightbox-open {
    background: #000000;
    overflow: hidden;
}

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* HEADER / FOOTER */

.app-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    font-size: 0.9rem;
    align-items: center;
}

.breadcrumb-item {
    cursor: pointer;
    color: var(--accent);
    font-weight: 500;
}

.breadcrumb-item:hover {
    text-decoration: underline;
}

.breadcrumb-separator {
    color: var(--muted);
}

.admin-badge {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 500;
}

.app-footer {
    margin-top: auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #ffffff;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
}

/* MAIN */

#main-view {
    flex: 1;
    padding: 1.5rem;
}

.view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.view-header h1 {
    font-size: 1.3rem;
    font-weight: 600;
}

/* FILTERS (выбор настроек подрубрик пользователем) */

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 0 0 0.9rem 0;
    align-items: flex-end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    font-size: 0.85rem;
}

.filter-group-label {
    color: var(--muted);
    font-size: 0.8rem;
}

.filter-select {
    min-width: 8.5rem;
    padding: 0.35rem 1.9rem 0.35rem 0.85rem;
    font-size: 0.85rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: #ffffff;
    outline: none;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236b7280' stroke-width='1.2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.8rem center;
    background-size: 0.7rem 0.7rem;
}

.filter-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent-soft);
}

.filter-reset-btn {
    font-size: 0.8rem;
    padding: 0.4rem 1rem;
    margin-left: auto;
}

/* BUTTONS */

button {
    font-family: inherit;
}

.btn {
    border-radius: 999px;
    border: none;
    padding: 0.55rem 1.2rem;
    font-size: 0.9rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    transition: background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

.btn.primary {
    background: var(--accent);
    color: #ffffff;
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.35);
}

.btn.primary:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
}

.btn.secondary {
    background: var(--accent-soft);
    color: var(--accent);
}

.btn.secondary:hover {
    background: #bfdbfe;
}

.btn.outline {
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--border);
    color: var(--text);
}

.btn.outline:hover {
    background: #ffffff;
}

/* GRID / CARDS */

.card-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(var(--columns, 4), minmax(0, 1fr));
}

.card {
    position: relative;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    min-height: 9rem;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.16);
}

.card-cover {
    position: relative;
    width: 100%;
    padding-top: var(--card-aspect, 62%);
    background-color: #e5e7eb;
    background-size: cover;
    background-position: center;
}

.card-body {
    padding: 0.85rem 1rem 0.9rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.card-body h2 {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
}

.card-body p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--muted);
}

/* Галерея — иконка видео */

.gallery-card.video .card-cover::after {
    content: "▶";
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 3rem;
    height: 3rem;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.6);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

/* Админ-управление на карточке */

.card-admin-controls {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    z-index: 2;
}

.card-admin-controls button {
    border: none;
    width: 1.8rem;
    height: 1.8rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.8);
    color: #ffffff;
    font-size: 0.9rem;
    cursor: pointer;
}

/* MODAL */

.modal {
    position: fixed;
    inset: 0;
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal.hidden {
    display: none;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(6px);
}

.modal-dialog {
    position: relative;
    max-width: 480px;
    width: 100%;
    margin: 1rem;
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.6rem 1.25rem;
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.5);
    z-index: 1;
}

.modal-dialog h2 {
    margin: 0 0 0.9rem 0;
    font-size: 1.1rem;
}

.form-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.form-row label {
    font-size: 0.85rem;
    color: var(--muted);
    display: block;
    margin-bottom: 0.2rem;
}

.form-row input[type="text"],
.form-row input[type="file"] {
    width: 100%;
    font-family: inherit;
    font-size: 0.9rem;
}

.modal-footer {
    margin-top: 1.1rem;
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

/* Прогресс загрузки */

.upload-progress {
    margin-top: 0.8rem;
}

.upload-progress.hidden {
    display: none;
}

.upload-bar {
    position: relative;
    height: 0.4rem;
    border-radius: 999px;
    overflow: hidden;
    background: var(--border);
}

.upload-bar-fill {
    position: absolute;
    inset: 0;
    transform-origin: left center;
    transform: scaleX(0);
    background: var(--accent);
}

.upload-info {
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--muted);
}

/* LIGHTBOX */

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: flex;
    align-items: stretch;
    justify-content: stretch;
}

.lightbox.hidden {
    display: none;
}

.lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.95);
}

.lightbox-content {
    position: relative;
    width: 100%;
    height: 100%;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: stretch;
    gap: 0;
    z-index: 1;
}

.lightbox-media {
    flex: 1 1 auto;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000000;
}

.lightbox-media img,
.lightbox-media video {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 0;
    background: #000000;
}

.lightbox-close {
    position: absolute;
    right: 1.5rem;
    top: 0.7rem;
    border: none;
    background: transparent;
    color: #ffffff;
    font-size: 2.1rem;
    cursor: pointer;
    z-index: 2;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    border: none;
    background: transparent;
    color: #ffffff;
    font-size: 2.5rem;
    cursor: pointer;
    transform: translateY(-50%);
    z-index: 2;
}

.lightbox-prev {
    left: 1.2rem;
}

.lightbox-next {
    right: 1.2rem;
}

.lightbox-caption {
    display: none;
}

/* TOAST */

.toast {
    position: fixed;
    left: 50%;
    bottom: 1rem;
    transform: translateX(-50%);
    background: #111827;
    color: #ffffff;
    padding: 0.7rem 1rem;
    border-radius: 999px;
    font-size: 0.85rem;
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.7);
    z-index: 80;
}

.toast.hidden {
    display: none;
}

/* RESPONSIVE */

@media (max-width: 1024px) {
    .card-grid {
        gap: 0.9rem;
    }
}

@media (max-width: 768px) {
    .app-header,
    .app-footer {
        padding: 0.65rem 1rem;
    }

    #main-view {
        padding: 1rem;
    }

    .card-grid {
        gap: 0.9rem;
    }

    .lightbox-content {
        padding: 0;
    }

    .filter-bar {
        gap: 0.5rem;
    }

    .filter-select {
        min-width: 7rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .card-grid {
        gap: 0.75rem;
    }

    .lightbox-content {
        padding: 0;
    }
}