:root {
    --color-bg: #050a0f;
    --color-text: #ffffff;
    --color-text-muted: #a0aec0;
    --color-accent: #2dd4bf;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -webkit-text-size-adjust: 100%;
}

/* --- Фон --- */
.bg-image {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: url('bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -1;
    filter: contrast(1.1) brightness(0.85);
}

.bg-image::after {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(180deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.2) 50%, rgba(0,0,0,0.8) 100%);
}

/* --- Шапка --- */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    width: 100%;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-shadow: 0 0 10px rgba(45, 212, 191, 0.4);
}

.theme-toggle {
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.theme-toggle:hover { opacity: 1; }

/* --- Основной контейнер --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1rem 5rem 1rem;
}

/* --- Сетка: 2 колонки на мобилке --- */
.grid-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

/* --- Карточка --- */
.card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--color-text);
    border-radius: 14px;
    overflow: hidden;
    background: #111;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
    transform: translateY(16px);
    aspect-ratio: 1 / 1;
    position: relative;
    -webkit-tap-highlight-color: transparent;
}

.card:active { transform: scale(0.97); }

@media (hover: hover) {
    .card:hover {
        transform: translateY(-6px);
        box-shadow: 0 20px 40px rgba(0,0,0,0.8), 0 0 20px rgba(45, 212, 191, 0.2);
    }
}

.card-img-wrapper {
    flex-grow: 1;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.card-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

@media (hover: hover) {
    .card:hover .card-img-wrapper img { transform: scale(1.05); }
}

.card-img-wrapper.no-image {
    background: linear-gradient(135deg, #0d9488, #0f172a);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-img-wrapper.no-image svg {
    width: 48px;
    height: 48px;
    opacity: 0.5;
}

/* --- Нижняя панель карточки --- */
.card-footer {
    background: rgba(20, 20, 20, 0.95);
    padding: 0.65rem 0.75rem;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
}

.card-title {
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-subtitle {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 0.125rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* --- Загрузка --- */
.loading {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    padding: 4rem 0;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(255,255,255,0.1);
    border-top-color: #2dd4bf;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* --- Анимации --- */
@keyframes spin { to { transform: rotate(360deg); } }

@keyframes fadeInUp {
    to { opacity: 1; transform: translateY(0); }
}

/* --- Десктоп (3+ колонок) --- */
@media (min-width: 640px) {
    .topbar { padding: 1.5rem 3rem; }
    .logo { font-size: 1.5rem; }
    .container { padding: 2rem 3rem 5rem 3rem; }
    .grid-container {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 1.5rem;
    }
    .card-title { font-size: 1rem; }
    .card-footer { padding: 1rem; }
    .card-img-wrapper.no-image svg { width: 64px; height: 64px; }
}