:root {
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 160ms cubic-bezier(.4, 0, .2, 1);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mono: "SF Mono", "JetBrains Mono", "Fira Mono", Consolas, "Courier New", monospace;
}

html[data-theme="light"] {
    --bg: #eef1f6;
    --panel: #ffffff;
    --panel-2: #f6f8fb;
    --panel-3: #eceff4;
    --text: #1c1e21;
    --text-dim: #6b7280;
    --border: #dfe3ea;
    --accent: #2563eb;
    --accent-soft: rgba(37, 99, 235, 0.10);
    --success: #16a34a;
    --success-soft: rgba(22, 163, 74, 0.12);
    --danger: #dc2626;
    --danger-soft: rgba(220, 38, 38, 0.10);
    --warn: #d97706;
    --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 12px 28px rgba(16, 24, 40, .10);
}

html[data-theme="dark"] {
    --bg: #0b0f17;
    --panel: #131a26;
    --panel-2: #1a2331;
    --panel-3: #0f1520;
    --text: #e6edf6;
    --text-dim: #8a97a8;
    --border: #263141;
    --accent: #4f9dff;
    --accent-soft: rgba(79, 157, 255, 0.14);
    --success: #34d399;
    --success-soft: rgba(52, 211, 153, 0.14);
    --danger: #f87171;
    --danger-soft: rgba(248, 113, 113, 0.14);
    --warn: #fbbf24;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 16px 40px rgba(0, 0, 0, .45);
}

* { box-sizing: border-box; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    margin: 0;
    padding: clamp(12px, 3vw, 28px);
    min-height: 100vh;
    transition: background-color var(--transition), color var(--transition);
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ===== Header ===== */
.app-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.app-header h1 {
    font-size: clamp(1.5em, 4vw, 2em);
    margin: 0 0 6px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.app-header p {
    margin: 0;
    color: var(--text-dim);
    font-size: .95em;
    max-width: 640px;
    line-height: 1.5;
}
.theme-toggle {
    flex-shrink: 0;
    background: var(--panel);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 9px 16px;
    font-size: .9em;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background var(--transition), border-color var(--transition);
}
.theme-toggle:hover { border-color: var(--accent); }

/* ===== Panels ===== */
.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: clamp(16px, 3vw, 24px);
}
.panel > h2 {
    margin: 0 0 4px;
    font-size: 1.15em;
    display: flex;
    align-items: center;
    gap: 8px;
}
.panel > .subtitle {
    margin: 0 0 18px;
    color: var(--text-dim);
    font-size: .88em;
    line-height: 1.5;
}

/* ===== Storage meter ===== */
.storage-meter { margin-bottom: 18px; }
.storage-bar {
    height: 12px;
    background: var(--panel-3);
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid var(--border);
}
.storage-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), var(--success));
    border-radius: 999px;
    transition: width 400ms ease;
}
.storage-text { margin-top: 8px; font-size: .82em; color: var(--text-dim); }

.stat-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
.stat {
    flex: 1 1 120px;
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
}
.stat .num { font-size: 1.5em; font-weight: 700; }
.stat .label { font-size: .76em; color: var(--text-dim); text-transform: uppercase; letter-spacing: .4px; }

/* ===== Option checkboxes ===== */
.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 10px;
    margin-bottom: 18px;
}
.option {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px;
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
}
.option:hover { border-color: var(--accent); }
.option input { margin-top: 2px; width: 18px; height: 18px; accent-color: var(--accent); cursor: pointer; flex-shrink: 0; }
.option .opt-body strong { display: block; font-size: .92em; }
.option .opt-body span { display: block; font-size: .78em; color: var(--text-dim); margin-top: 2px; line-height: 1.4; }

/* ===== Buttons ===== */
.btn {
    padding: 11px 18px;
    font-size: .92em;
    font-weight: 600;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: var(--panel-2);
    color: var(--text);
    transition: background var(--transition), border-color var(--transition), transform var(--transition), color var(--transition);
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); border-color: var(--accent); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-ghost { background: transparent; }
.btn-sm { padding: 7px 12px; font-size: .82em; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }

/* ===== Sites toolbar ===== */
.sites-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 14px;
}
.search-box {
    flex: 1 1 220px;
    position: relative;
}
.search-box input {
    width: 100%;
    padding: 10px 12px 10px 34px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--panel-2);
    color: var(--text);
    font-size: .9em;
    font-family: inherit;
}
.search-box input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search-box::before {
    content: "🔍";
    position: absolute;
    left: 11px; top: 50%;
    transform: translateY(-50%);
    font-size: .85em;
    opacity: .6;
}
select.filter {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--panel-2);
    color: var(--text);
    font-size: .9em;
    font-family: inherit;
    cursor: pointer;
}
.site-count { font-size: .82em; color: var(--text-dim); margin-left: auto; white-space: nowrap; }

/* ===== Sites list ===== */
.sites-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 8px;
    max-height: 420px;
    overflow-y: auto;
    padding: 4px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--panel-3);
}
.site {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 9px 11px;
    transition: border-color var(--transition);
}
.site:hover { border-color: var(--accent); }
.site input { width: 17px; height: 17px; accent-color: var(--accent); cursor: pointer; flex-shrink: 0; }
.site .avatar {
    width: 30px; height: 30px;
    border-radius: 7px;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: .9em; color: #fff;
    flex-shrink: 0;
}
.site .site-info { min-width: 0; flex: 1; }
.site .site-info a {
    font-weight: 600; font-size: .9em; color: var(--text);
    text-decoration: none;
    display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.site .site-info a:hover { color: var(--accent); text-decoration: underline; }
.site .site-info .cat { font-size: .72em; color: var(--text-dim); }
.site .open-link {
    font-size: .75em; color: var(--accent); text-decoration: none;
    border: 1px solid var(--border); border-radius: 6px; padding: 3px 7px;
    flex-shrink: 0;
}
.site .open-link:hover { background: var(--accent-soft); }

.note {
    font-size: .8em;
    color: var(--text-dim);
    background: var(--accent-soft);
    border-left: 3px solid var(--accent);
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    line-height: 1.5;
    margin-top: 14px;
}

/* ===== Log ===== */
.log-header { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.log-header h2 { margin: 0; font-size: 1.05em; }
#log {
    font-family: var(--mono);
    font-size: .82em;
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
    color: var(--text);
    background: var(--panel-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px;
    height: 220px;
    overflow-y: auto;
    line-height: 1.6;
}
.log-line { display: block; }
.log-ok { color: var(--success); }
.log-err { color: var(--danger); }
.log-info { color: var(--text-dim); }
.log-warn { color: var(--warn); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

@media (max-width: 560px) {
    .app-header { flex-direction: column; }
    .site-count { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; }
}