* { box-sizing: border-box; }

:root[data-theme="dark"] {
    --bg: #121417;
    --bg-elevated: #1b1e23;
    --text: #e8e9ea;
    --text-muted: #9aa0a6;
    --border: #2c2f34;
    --accent: #4f7dfb;
    --accent-hover: #3a63d8;
    --success: #3fb950;
    --error: #f85149;
    --card-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

:root[data-theme="light"] {
    --bg: #f6f7f9;
    --bg-elevated: #ffffff;
    --text: #1c1f24;
    --text-muted: #5b6169;
    --border: #dfe2e6;
    --accent: #3563e9;
    --accent-hover: #2748b8;
    --success: #1e8e3e;
    --error: #c62828;
    --card-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 10px;
}

.brand {
    font-weight: 700;
    font-size: 18px;
    color: var(--text);
    text-decoration: none;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.topbar-right a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
}

.topbar-right a:hover { color: var(--accent); }

.user-name {
    font-size: 14px;
    color: var(--text);
}

#theme-toggle {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 13px;
}

.container {
    flex: 1;
    max-width: 1080px;
    width: 100%;
    margin: 0 auto;
    padding: 24px 16px;
}

.footer {
    text-align: center;
    padding: 16px;
    color: var(--text-muted);
    font-size: 12px;
    border-top: 1px solid var(--border);
}

.card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--card-shadow);
    margin-bottom: 16px;
}

h1, h2, h3 { margin-top: 0; }

.auth-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.auth-card {
    width: 100%;
    max-width: 380px;
}

form label {
    display: block;
    margin-top: 12px;
    margin-bottom: 4px;
    font-size: 13px;
    color: var(--text-muted);
}

input[type="text"], input[type="password"], input[type="email"],
textarea, select {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
}

textarea { resize: vertical; min-height: 120px; }

.btn {
    display: inline-block;
    padding: 9px 18px;
    border-radius: 6px;
    border: 1px solid var(--border);
    cursor: pointer;
    font-size: 14px;
    text-decoration: none;
    background: var(--bg);
    color: var(--text);
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    margin-top: 16px;
    width: 100%;
}

.btn-primary:hover { background: var(--accent-hover); }

.btn-small { padding: 5px 10px; font-size: 12px; }

.btn-danger { border-color: var(--error); color: var(--error); }
.btn-danger:hover { background: var(--error); color: #fff; }

.flash-list { margin-bottom: 16px; }

.flash {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 8px;
    font-size: 14px;
    border: 1px solid var(--border);
}

.flash-success { border-color: var(--success); color: var(--success); }
.flash-error { border-color: var(--error); color: var(--error); }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.list-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 8px;
}

.list-row:last-child { border-bottom: none; }

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.badge-success { border-color: var(--success); color: var(--success); }

.progress-bar-outer {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    height: 10px;
    overflow: hidden;
    margin-top: 6px;
}

.progress-bar-inner {
    background: var(--accent);
    height: 100%;
}

.task-media img, .task-media video {
    max-width: 100%;
    border-radius: 8px;
    margin: 10px 0;
    display: block;
}

.actions-row { display: flex; gap: 8px; flex-wrap: wrap; }

.notification-item {
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 8px;
    font-size: 14px;
}

@media (max-width: 768px) {
    .topbar { padding: 10px 14px; }
    .container { padding: 16px 12px; }
    .grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .topbar-right { gap: 10px; }
    .brand { font-size: 16px; }
}