/* Telegram theme CSS variables — dark mode defaults */
:root {
    --tg-bg: #1c1c1e;
    --tg-text: #f2f2f7;
    --tg-hint: #8e8e93;
    --tg-link: #64d2ff;
    --tg-btn: #0a84ff;
    --tg-btn-text: #ffffff;
    --tg-secondary-bg: #2c2c2e;
    --tg-section-bg: #2c2c2e;
    --tg-section-header: #8e8e93;
    --tg-accent: #0a84ff;
    --tg-destructive: #ff453a;
}

/* Reset */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Smooth page transitions */
.page-enter { animation: fadeIn 0.2s ease; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Category card */
.cat-card {
    border-radius: 12px;
    background: var(--tg-section-bg);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    border: 1px solid rgba(128,128,128,0.1);
}
.cat-card:active {
    transform: scale(0.97);
}

/* Listing card */
.listing-card {
    background: var(--tg-section-bg);
    border-radius: 12px;
    padding: 14px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: transform 0.15s;
    border: 1px solid rgba(128,128,128,0.08);
}
.listing-card:active {
    transform: scale(0.98);
}

/* Avatar */
.avatar {
    border-radius: 50%;
    object-fit: cover;
    background: var(--tg-secondary-bg);
    flex-shrink: 0;
}

/* Chip/tag */
.chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    background: var(--tg-secondary-bg);
    color: var(--tg-text);
    white-space: nowrap;
}
.chip.active {
    background: var(--tg-btn);
    color: var(--tg-btn-text);
}

/* Button */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    background: var(--tg-btn);
    color: var(--tg-btn-text);
    transition: opacity 0.15s;
    width: 100%;
}
.btn-primary:active { opacity: 0.8; }

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid rgba(128,128,128,0.2);
    background: var(--tg-secondary-bg);
    color: var(--tg-text);
    transition: opacity 0.15s;
    width: 100%;
}
.btn-secondary:active { opacity: 0.8; }

/* Search input */
.search-input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    border-radius: 12px;
    border: none;
    background: var(--tg-secondary-bg);
    color: var(--tg-text);
    font-size: 15px;
    outline: none;
}
.search-input::placeholder {
    color: var(--tg-hint);
}

/* Content from BB-code */
.bbcode-content a {
    color: var(--tg-link);
    text-decoration: underline;
}
.bbcode-content ul {
    padding-left: 20px;
    margin: 8px 0;
}
.bbcode-content li {
    margin: 4px 0;
}
.bbcode-content img {
    max-width: 100%;
    border-radius: 8px;
    margin: 8px 0;
}

/* Loading spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--tg-secondary-bg);
    border-top-color: var(--tg-btn);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin: 20px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Scrollbar thin */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(128,128,128,0.3); border-radius: 4px; }

/* Subcategory row */
.subcat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(128,128,128,0.1);
    cursor: pointer;
    transition: background 0.15s;
}
.subcat-row:active {
    background: rgba(128,128,128,0.05);
}

/* Section header */
.section-header {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--tg-section-header);
    padding: 16px 16px 8px;
}

/* Relative time text */
.time-hint {
    font-size: 12px;
    color: var(--tg-hint);
}

/* Category badge */
.cat-badge {
    display: inline-flex;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--tg-hint);
}
.empty-state svg {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
    opacity: 0.4;
}

/* Safe area padding for iOS */
.safe-bottom {
    padding-bottom: env(safe-area-inset-bottom, 16px);
}