:root, [data-theme="dark"] {
    --bg: #0d1016;
    --surface: #151a23;
    --surface-2: #1c2330;
    --ink: #e6e9ef;
    --ink-soft: #8b93a5;
    --line: rgba(255, 255, 255, 0.07);
    --accent: #4f8cff;
    --green: #34c98e;
    --red: #f06a6a;
    --radius: 14px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
[data-theme="light"] {
    --bg: #f3f5f9;
    --surface: #ffffff;
    --surface-2: #eef1f6;
    --ink: #1a1e28;
    --ink-soft: #667085;
    --line: #e4e7ee;
    --shadow: 0 10px 30px rgba(26, 30, 40, 0.08);
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.5;
    transition: background 0.3s, color 0.3s;
}

.app { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
    width: 240px;
    background: var(--surface);
    border-right: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
    position: sticky;
    top: 0;
    height: 100vh;
    flex-shrink: 0;
}
.side-logo {
    font-size: 1.25rem;
    font-weight: 800;
    padding: 0 12px 28px;
    letter-spacing: -0.02em;
}
.side-logo span { color: var(--accent); }
.side-nav { display: flex; flex-direction: column; gap: 4px; }
.side-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: 10px;
    color: var(--ink-soft);
    text-decoration: none;
    font-size: 0.93rem;
    font-weight: 500;
    transition: background 0.2s, color 0.2s;
}
.side-nav a i { font-style: normal; font-size: 1.05rem; }
.side-nav a:hover { background: var(--surface-2); color: var(--ink); }
.side-nav a.active { background: var(--accent); color: #fff; }
.side-foot { margin-top: auto; }
.side-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    background: var(--surface-2);
}
.avatar {
    width: 38px; height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #7c5cff);
    color: #fff;
    font-weight: 700;
    font-size: 0.82rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.side-user b { display: block; font-size: 0.9rem; }
.side-user span { color: var(--ink-soft); font-size: 0.78rem; }

/* Main */
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 18px 28px;
    border-bottom: 1px solid var(--line);
    background: var(--surface);
    position: sticky;
    top: 0;
    z-index: 20;
}
.topbar h1 { font-size: 1.15rem; font-weight: 700; }
.burger { display: none; background: none; border: none; color: var(--ink); font-size: 1.3rem; cursor: pointer; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.badge-live {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--green);
    background: rgba(52, 201, 142, 0.1);
    padding: 6px 14px;
    border-radius: 999px;
}
.badge-live i {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--green);
    animation: pulse 1.8s infinite;
}
@keyframes pulse { 50% { opacity: 0.3; } }
.theme-toggle {
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: var(--surface-2);
    font-size: 1.05rem;
    cursor: pointer;
    transition: transform 0.2s;
}
.theme-toggle:hover { transform: rotate(20deg) scale(1.08); }

.content { padding: 28px; display: flex; flex-direction: column; gap: 24px; }

/* Stat-Cards */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    box-shadow: var(--shadow);
}
.stat-label { color: var(--ink-soft); font-size: 0.82rem; font-weight: 500; }
.stat-value { font-size: 1.65rem; font-weight: 800; letter-spacing: -0.02em; }
.stat-trend { font-size: 0.8rem; font-weight: 600; }
.stat-trend.up { color: var(--green); }
.stat-trend.down { color: var(--red); }

/* Panels */
.charts-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 18px;
}
.panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
    min-width: 0;
}
.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}
.panel-head h2 { font-size: 1rem; font-weight: 700; }
.range-switch { display: flex; gap: 6px; }
.range-switch button {
    padding: 6px 14px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: none;
    color: var(--ink-soft);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.range-switch button.active { background: var(--accent); border-color: var(--accent); color: #fff; }
canvas { width: 100%; }

.legend { list-style: none; margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.legend li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--ink-soft);
}
.legend li i { width: 10px; height: 10px; border-radius: 3px; font-style: normal; }
.legend li b { margin-left: auto; color: var(--ink); }

/* Tabelle */
#tableSearch {
    padding: 8px 16px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: var(--surface-2);
    color: var(--ink);
    font-family: inherit;
    font-size: 0.86rem;
    outline: none;
    width: 220px;
    max-width: 100%;
}
#tableSearch:focus { border-color: var(--accent); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th {
    text-align: left;
    color: var(--ink-soft);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 10px 14px;
    border-bottom: 1px solid var(--line);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}
th:hover { color: var(--ink); }
td { padding: 13px 14px; border-bottom: 1px solid var(--line); white-space: nowrap; }
tbody tr { transition: background 0.15s; }
tbody tr:hover { background: var(--surface-2); }
.status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 600;
}
.status.done { background: rgba(52, 201, 142, 0.12); color: var(--green); }
.status.open { background: rgba(79, 140, 255, 0.12); color: var(--accent); }
.status.cancel { background: rgba(240, 106, 106, 0.12); color: var(--red); }

.demo-note { color: var(--ink-soft); font-size: 0.84rem; text-align: center; padding-bottom: 12px; }
.demo-note a { color: var(--accent); text-decoration: none; }

/* Responsive */
@media (max-width: 1020px) {
    .stat-cards { grid-template-columns: repeat(2, 1fr); }
    .charts-row { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
    .sidebar {
        position: fixed;
        z-index: 50;
        transform: translateX(-100%);
        transition: transform 0.3s;
    }
    .sidebar.open { transform: none; }
    .burger { display: block; }
    .stat-cards { grid-template-columns: 1fr; }
    .content { padding: 18px; }
}