:root {
    --hf-bg: #f7f7f9;
    --hf-panel: #ffffff;
    --hf-panel-alt: #f0f0f3;
    --hf-border: #e3e3e8;
    --hf-text: #17181c;
    --hf-text-muted: #6b6c75;
    --hf-accent: #4f6df5;
    --hf-accent-hover: #3d59e0;
    --hf-success: #1eae63;
    --hf-warning: #c8790a;
    --hf-danger: #e0473f;
    --hf-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

:root:not([data-theme="light"]) {
    --hf-bg: #121317;
    --hf-panel: #1a1b20;
    --hf-panel-alt: #202127;
    --hf-border: #2c2d34;
    --hf-text: #f2f2f4;
    --hf-text-muted: #93949e;
    --hf-accent: #6c8cff;
    --hf-accent-hover: #8aa2ff;
    --hf-success: #3ddc84;
    --hf-warning: #ffb547;
    --hf-danger: #ff6b6b;
    --hf-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
}

:root[data-theme="dark"] {
    --hf-bg: #121317;
    --hf-panel: #1a1b20;
    --hf-panel-alt: #202127;
    --hf-border: #2c2d34;
    --hf-text: #f2f2f4;
    --hf-text-muted: #93949e;
    --hf-accent: #6c8cff;
    --hf-accent-hover: #8aa2ff;
    --hf-success: #3ddc84;
    --hf-warning: #ffb547;
    --hf-danger: #ff6b6b;
    --hf-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--hf-bg);
    color: var(--hf-text);
}

a { color: var(--hf-accent); }

.hf-app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.hf-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 20px;
    background: var(--hf-panel);
    border-bottom: 1px solid var(--hf-border);
    flex-wrap: wrap;
}

.hf-header .hf-logo { font-weight: 800; font-size: 16px; white-space: nowrap; }
.hf-header-row1 { display: contents; }

.hf-tabs { display: flex; gap: 6px; background: var(--hf-panel-alt); border-radius: 999px; padding: 4px; }
.hf-tab {
    padding: 7px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    color: var(--hf-text-muted);
    border: none;
    background: transparent;
}
.hf-tab.active { background: var(--hf-accent); color: #fff; }

.hf-search {
    flex: 1;
    min-width: 160px;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid var(--hf-border);
    background: var(--hf-panel-alt);
    color: var(--hf-text);
    font-size: 13px;
}

.hf-filters { display: flex; gap: 8px; align-items: center; }
.hf-filters select {
    padding: 7px 10px;
    border-radius: 8px;
    border: 1px solid var(--hf-border);
    background: var(--hf-panel-alt);
    color: var(--hf-text);
    font-size: 13px;
}

.hf-theme-toggle {
    border: 1px solid var(--hf-border);
    background: var(--hf-panel-alt);
    color: var(--hf-text);
    border-radius: 999px;
    width: 34px; height: 34px;
    cursor: pointer;
    font-size: 15px;
}

.hf-body { flex: 1; display: flex; overflow: hidden; }

.hf-sidebar {
    width: 380px;
    min-width: 320px;
    background: var(--hf-panel);
    border-right: 1px solid var(--hf-border);
    overflow-y: auto;
}

.hf-map { flex: 1; position: relative; }
#hf-map-el { width: 100%; height: 100%; }

.hf-list-count { padding: 12px 16px 4px; font-size: 12px; color: var(--hf-text-muted); }

.hf-card-item {
    display: flex;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--hf-border);
    cursor: pointer;
}
.hf-card-item:hover, .hf-card-item.active { background: var(--hf-panel-alt); }

.hf-card-thumb {
    width: 64px; height: 64px;
    border-radius: 10px;
    object-fit: cover;
    background: var(--hf-panel-alt);
    flex-shrink: 0;
}

.hf-card-info { flex: 1; min-width: 0; }
.hf-card-name { font-weight: 700; font-size: 14px; margin: 0 0 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hf-card-meta { font-size: 12px; color: var(--hf-text-muted); display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.hf-card-price { font-weight: 700; font-size: 13px; margin-top: 6px; }
.hf-card-links { margin-top: 6px; display: flex; gap: 6px; flex-wrap: wrap; }
.hf-card-links a {
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 999px;
    background: var(--hf-panel-alt);
    border: 1px solid var(--hf-border);
    text-decoration: none;
    color: var(--hf-text);
}

.hf-badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 11px; font-weight: 700; }
.hf-badge-easy { background: rgba(30, 174, 99, 0.15); color: var(--hf-success); }
.hf-badge-medium { background: rgba(200, 121, 10, 0.15); color: var(--hf-warning); }
.hf-badge-hard { background: rgba(224, 71, 63, 0.15); color: var(--hf-danger); }
.hf-badge-unclassified { background: rgba(107, 108, 117, 0.15); color: var(--hf-text-muted); }

.hf-empty { padding: 40px 20px; text-align: center; color: var(--hf-text-muted); font-size: 13px; }

.hf-map-pin {
    background: var(--hf-panel);
    border: 2px solid var(--hf-accent);
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 700;
    color: var(--hf-text);
    box-shadow: var(--hf-shadow);
    white-space: nowrap;
}
.hf-map-pin.active { background: var(--hf-accent); color: #fff; }

.hf-view-switch { display: none; }

@media (max-width: 760px) {
    .hf-header {
        flex-wrap: nowrap;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        padding: 10px 14px;
    }
    .hf-header-row1 { display: flex; align-items: center; gap: 10px; }
    .hf-header-row1 .hf-tabs { flex: 1; }
    .hf-search { width: 100%; }
    .hf-filters {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 2px;
    }
    .hf-filters select { flex-shrink: 0; }

    .hf-body { position: relative; }
    .hf-sidebar, .hf-map { width: 100%; height: 100%; }
    .hf-sidebar { display: none; border-right: none; }
    body.hf-view-map .hf-sidebar { display: none; }
    body.hf-view-list .hf-sidebar { display: block; }
    body.hf-view-list .hf-map { display: none; }
    body.hf-view-map .hf-map { display: block; }

    .hf-view-switch {
        display: flex;
        position: absolute;
        bottom: 18px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 500;
        background: var(--hf-panel);
        border: 1px solid var(--hf-border);
        border-radius: 999px;
        padding: 4px;
        box-shadow: var(--hf-shadow);
        gap: 2px;
    }
    .hf-view-switch button {
        border: none;
        background: transparent;
        color: var(--hf-text-muted);
        font-size: 13px;
        font-weight: 700;
        padding: 8px 18px;
        border-radius: 999px;
        cursor: pointer;
    }
    .hf-view-switch button.active { background: var(--hf-accent); color: #fff; }
}