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

:root {
    --bg: #0a0a0a;
    --card: #1a1a1a;
    --border: #2a2a2a;
    --accent: #e63946;
    --accent-hover: #c62d3a;
    --text: #ffffff;
    --text-muted: #a0a0a0;
    --success: #2ecc71;
    --error: #e74c3c;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* Login */
.login-page {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh;
}
.login-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: 12px; padding: 48px 40px; width: 380px;
    text-align: center;
}
.login-card h1 { font-size: 24px; margin-bottom: 8px; }
.login-card .subtitle { color: var(--text-muted); margin-bottom: 32px; font-size: 14px; }
.login-card input {
    width: 100%; padding: 12px 16px; margin-bottom: 16px;
    background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
    color: var(--text); font-size: 14px; outline: none;
}
.login-card input:focus { border-color: var(--accent); }
.login-card .error { color: var(--error); font-size: 13px; margin-bottom: 12px; display: none; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 12px 24px; border: none; border-radius: 8px;
    font-size: 14px; font-weight: 600; cursor: pointer;
    transition: background 0.15s;
}
.btn-primary { background: var(--accent); color: #fff; width: 100%; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-outline {
    background: transparent; border: 1px solid var(--border); color: var(--text);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: var(--error); color: #fff; }

/* Layout */
.app { display: flex; min-height: 100vh; }
.sidebar {
    width: 240px; background: var(--card); border-right: 1px solid var(--border);
    padding: 24px 0; display: flex; flex-direction: column;
}
.sidebar .logo { padding: 0 24px 24px; font-size: 18px; font-weight: 700; }
.sidebar .logo span { color: var(--accent); }
.sidebar .nav-section { padding: 0 16px; margin-bottom: 24px; }
.sidebar .nav-section h3 {
    font-size: 11px; text-transform: uppercase; color: var(--text-muted);
    padding: 0 8px; margin-bottom: 8px; letter-spacing: 0.5px;
}
.sidebar .nav-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px; border-radius: 8px; cursor: pointer;
    font-size: 14px; color: var(--text-muted); transition: background 0.15s;
}
.sidebar .nav-item:hover { background: var(--bg); color: var(--text); }
.sidebar .nav-item.active { background: var(--accent); color: #fff; }
.sidebar .nav-item.disabled { opacity: 0.4; cursor: default; }
.sidebar .badge {
    font-size: 10px; background: var(--border); color: var(--text-muted);
    padding: 2px 6px; border-radius: 4px; margin-left: auto;
}
.sidebar .spacer { flex: 1; }

.main { flex: 1; padding: 32px; overflow-y: auto; }
.main h2 { font-size: 22px; margin-bottom: 24px; }

/* Cards */
.card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: 12px; padding: 24px;
}

/* Upload area */
.upload-area {
    border: 2px dashed var(--border); border-radius: 12px;
    padding: 48px; text-align: center; cursor: pointer;
    transition: border-color 0.15s;
}
.upload-area:hover { border-color: var(--accent); }
.upload-area.dragover { border-color: var(--accent); background: rgba(230,57,70,0.05); }
.upload-area p { color: var(--text-muted); margin-top: 8px; font-size: 14px; }

/* Settings panel */
.settings-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 20px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; color: var(--text-muted); }
.form-group select, .form-group input[type="text"] {
    padding: 10px 12px; background: var(--bg); border: 1px solid var(--border);
    border-radius: 8px; color: var(--text); font-size: 14px; outline: none;
}
.form-group select:focus, .form-group input[type="text"]:focus { border-color: var(--accent); }

/* Toggle */
.toggle { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.toggle input { display: none; }
.toggle .track {
    width: 36px; height: 20px; background: var(--border); border-radius: 10px;
    position: relative; transition: background 0.15s;
}
.toggle input:checked + .track { background: var(--accent); }
.toggle .track::after {
    content: ''; position: absolute; top: 2px; left: 2px;
    width: 16px; height: 16px; background: #fff; border-radius: 50%;
    transition: transform 0.15s;
}
.toggle input:checked + .track::after { transform: translateX(16px); }

/* File list */
.file-list { display: flex; flex-direction: column; gap: 8px; margin-top: 20px; }
.file-item {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 16px; background: var(--bg); border-radius: 8px;
}
.file-item .name { flex: 1; font-size: 14px; }
.file-item .status { font-size: 13px; color: var(--text-muted); }
.file-item .status.done { color: var(--success); }
.file-item .status.error { color: var(--error); }
.progress-bar {
    width: 100px; height: 4px; background: var(--border); border-radius: 2px; overflow: hidden;
}
.progress-bar .fill {
    height: 100%; background: var(--accent); border-radius: 2px;
    transition: width 0.3s;
}

/* Admin tables */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 12px; color: var(--text-muted); padding: 8px 12px; border-bottom: 1px solid var(--border); }
td { padding: 12px; font-size: 14px; border-bottom: 1px solid var(--border); }
tr:hover { background: rgba(255,255,255,0.02); }

/* Tabs */
.tabs { display: flex; gap: 4px; margin-bottom: 24px; }
.tab {
    padding: 8px 16px; border-radius: 8px; cursor: pointer;
    font-size: 14px; color: var(--text-muted); transition: background 0.15s;
}
.tab:hover { background: var(--bg); }
.tab.active { background: var(--accent); color: #fff; }

/* Stat cards */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card { padding: 20px; }
.stat-card .label { font-size: 13px; color: var(--text-muted); margin-bottom: 4px; }
.stat-card .value { font-size: 28px; font-weight: 700; }

/* Gauge */
.gauge { margin-bottom: 12px; }
.gauge .label { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 4px; }
.gauge .bar { height: 8px; background: var(--bg); border-radius: 4px; overflow: hidden; }
.gauge .bar .fill { height: 100%; border-radius: 4px; transition: width 0.3s; }

/* Three-column settings grid */
.settings-grid.three-col { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 768px) { .settings-grid.three-col { grid-template-columns: 1fr; } }

/* Settings title */
.settings-title { font-size: 16px; font-weight: 600; margin-bottom: 4px; }

/* Toggle row */
.toggle-row { display: flex; gap: 24px; margin-top: 16px; flex-wrap: wrap; }

/* Upload icon */
.upload-icon { margin-bottom: 4px; }
.upload-icon svg { opacity: 0.8; }
.upload-area:hover .upload-icon svg { opacity: 1; }

/* Pagination */
.pagination { display: flex; gap: 4px; justify-content: center; margin-top: 16px; }