/* Filters page — dedicated glassmorphism filter experience */

body.filters-page {
    background-color: var(--bg);
    background-image:
        radial-gradient(circle at 12% 20%, rgba(0, 229, 255, 0.08), transparent 28%),
        radial-gradient(circle at 88% 70%, rgba(0, 229, 255, 0.05), transparent 30%),
        radial-gradient(circle at 50% 100%, rgba(0, 0, 0, 0.45), transparent 50%);
    background-attachment: fixed;
    color: var(--text);
    min-height: 100dvh;
    padding-bottom: calc(96px + env(safe-area-inset-bottom, 0px) + var(--app-bottom-nav-h, 64px));
}

html:has(body.filters-page) {
    background-color: var(--bg);
}

/* ── Header ───────────────────────────────────────────── */

.filters-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.filters-header__inner {
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: 64px;
    padding: 10px 0;
}

.filters-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-glass-light);
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
    flex-shrink: 0;
}

.filters-back:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-soft);
    box-shadow: var(--shadow-glow);
    transform: translateX(-2px);
}

.filters-header__copy {
    flex: 1;
    min-width: 0;
}

.filters-header__title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 650;
    letter-spacing: -0.02em;
    color: var(--text);
}

.filters-header__subtitle {
    margin: 2px 0 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* ── Main layout ──────────────────────────────────────── */

.filters-main {
    padding: clamp(20px, 3vw, 32px) 0 24px;
}

.filters-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    max-width: 920px;
    margin: 0 auto;
}

@media (min-width: 900px) {
    .filters-grid {
        grid-template-columns: 1fr 1fr;
        gap: 18px;
    }

    .filters-card--wide {
        grid-column: 1 / -1;
    }
}

/* ── Cards ────────────────────────────────────────────── */

.filters-card {
    position: relative;
    padding: 20px 18px 18px;
    background: var(--bg-glass);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-subtle);
    opacity: 0;
    transform: translateY(14px);
    animation: filtersCardIn 0.45s var(--ease-out) forwards;
}

.filters-card:nth-child(1) { animation-delay: 0.04s; }
.filters-card:nth-child(2) { animation-delay: 0.08s; }
.filters-card:nth-child(3) { animation-delay: 0.12s; }
.filters-card:nth-child(4) { animation-delay: 0.16s; }
.filters-card:nth-child(5) { animation-delay: 0.2s; }
.filters-card:nth-child(6) { animation-delay: 0.24s; }
.filters-card:nth-child(7) { animation-delay: 0.28s; }
.filters-card:nth-child(8) { animation-delay: 0.32s; }

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

@media (prefers-reduced-motion: reduce) {
    .filters-card {
        opacity: 1;
        transform: none;
        animation: none;
    }
}

.filters-card__head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.filters-card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--primary-soft);
    border: 1px solid rgba(0, 229, 255, 0.25);
    color: var(--primary);
    font-size: 0.95rem;
    flex-shrink: 0;
}

.filters-card__title {
    margin: 0;
    font-size: 1rem;
    font-weight: 650;
    letter-spacing: -0.015em;
    color: var(--text);
}

.filters-card__hint {
    margin: 2px 0 0;
    font-size: 0.78rem;
    color: var(--text-light);
}

.filters-card__body {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* ── Chips / options ──────────────────────────────────── */

.filters-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filters-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 42px;
    padding: 8px 14px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    background: var(--bg-glass-light);
    color: var(--text-muted);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
}

.filters-chip:hover {
    border-color: var(--border-light);
    color: var(--text);
    background: rgba(255, 255, 255, 0.07);
}

.filters-chip.is-active {
    border-color: var(--primary);
    background: var(--primary-soft);
    color: var(--primary);
    box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.2), var(--shadow-glow);
}

.filters-chip input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.filters-chip--disabled,
.filters-chip:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
}

.filters-chip__soon {
    font-size: 0.65rem;
    font-weight: 650;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 2px 6px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-light);
}

/* ── Category list ────────────────────────────────────── */

.filters-cat-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px;
}

.filters-cat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 46px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--bg-glass-light);
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filters-cat-item:hover {
    border-color: var(--border-light);
    color: var(--text);
}

.filters-cat-item.is-active {
    border-color: var(--primary);
    background: var(--primary-soft);
    color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.filters-cat-item input {
    accent-color: var(--primary);
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.filters-cat-item i {
    width: 18px;
    text-align: center;
    opacity: 0.85;
}

/* ── Price range ──────────────────────────────────────── */

.filters-price {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.filters-price__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.filters-price__field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filters-price__field label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.filters-price__field input {
    width: 100%;
    min-height: 46px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 500;
    outline: none;
    transition: var(--transition-fast);
}

.filters-price__field input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-soft);
}

.filters-price__slider {
    width: 100%;
    accent-color: var(--primary);
    height: 6px;
    cursor: pointer;
}

.filters-price__meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.filters-price__meta strong {
    color: var(--primary);
    font-weight: 600;
}

/* ── Future section ───────────────────────────────────── */

.filters-future {
    opacity: 0.85;
}

.filters-future .filters-card__hint {
    color: var(--text-muted);
}

/* ── Sticky bottom bar ────────────────────────────────── */

.filters-bottom-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: var(--app-bottom-nav-h, 64px);
    z-index: 50;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
    background: var(--bg-glass-strong);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    border-top: 1px solid var(--border);
    box-shadow: 0 -12px 40px rgba(0, 0, 0, 0.35);
}

.filters-bottom-bar__inner {
    display: grid;
    grid-template-columns: 1fr 1.35fr;
    gap: 12px;
    max-width: 920px;
    margin: 0 auto;
}

.filters-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 54px;
    padding: 14px 20px;
    border-radius: var(--radius-pill);
    font-size: 1rem;
    font-weight: 650;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.filters-btn--reset {
    background: var(--bg-glass);
    border-color: var(--border);
    color: var(--text);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.filters-btn--reset:hover {
    border-color: var(--border-light);
    background: var(--bg-glass-light);
    transform: translateY(-1px);
}

.filters-btn--apply {
    background: var(--primary);
    color: var(--bg);
    box-shadow: 0 8px 28px var(--primary-glow);
}

.filters-btn--apply:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-strong);
}

.filters-btn--apply:active,
.filters-btn--reset:active {
    transform: translateY(0);
}

@media (max-width: 480px) {
    .filters-bottom-bar__inner {
        grid-template-columns: 1fr;
    }

    .filters-btn--reset {
        order: 2;
        min-height: 48px;
    }

    .filters-btn--apply {
        order: 1;
    }

    .filters-price__row {
        grid-template-columns: 1fr;
    }
}

/* Account for bottom nav height when present */
body.has-app-bottom-nav.filters-page {
    --app-bottom-nav-h: 72px;
}

body.has-app-bottom-nav.filters-page .filters-bottom-bar {
    bottom: calc(var(--app-bottom-nav-h, 72px) - 2px);
}