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

html {
    --bg: #fff;
    --text: #000;
    --primary: #000;
    --primary-text: #fff;
    --card-bg: #fff;
    --card-border: #000;
    --input-bg: #fff;
    --input-border: #000;
    --link: #000;
}

html[data-theme="light"] {
    --bg: #fff;
    --text: #000;
    --primary: #000;
    --primary-text: #fff;
    --card-bg: #fff;
    --card-border: #000;
    --input-bg: #fff;
    --input-border: #000;
    --link: #000;
}

html[data-theme="dark"] {
    --bg: #111;
    --text: #f5f5f5;
    --primary: #fff;
    --primary-text: #000;
    --card-bg: #1a1a1a;
    --card-border: #aaa;
    --input-bg: #222;
    --input-border: #aaa;
    --link: #ddd;
}

/* Base */
body {
    font-family: Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.5;
    transition: background 0.3s, color 0.3s;
    padding-top: 60px; /* Platz für feste Navbar */
}

a {
    color: var(--link);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Container */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background-color: #000;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 1000;
}

.navbar .logo {
    font-size: 1.2rem;
    font-weight: bold;
}

.navbar nav a {
    margin-left: 20px;
    color: #fff;
    text-decoration: none;
    font-size: 0.95rem;
}

.navbar nav a:hover {
    text-decoration: underline;
}

.navbar .toggle-btn {
    margin-left: 20px;
    cursor: pointer;
    font-size: 1rem;
    padding: 6px 12px;
    border: 1px solid #fff;
    border-radius: 4px;
    background: none;
    color: #fff;
}

/* Forms */
form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 20px 0;
}

label {
    font-weight: bold;
    font-size: 0.95rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea {
    padding: 10px;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    font-size: 1rem;
    width: 100%;
    background-color: var(--input-bg);
    color: var(--text);
}

select {
    padding: 10px;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    font-size: 1rem;
    width: 100%;
    background-color: var(--input-bg);
    color: var(--text);
}

button {
    padding: 12px;
    font-size: 1rem;
    border: none;
    background-color: var(--primary);
    color: var(--primary-text);
    cursor: pointer;
    border-radius: 4px;
    transition: opacity 0.2s ease;
}

button:hover {
    opacity: 0.85;
}

/* Alerts */
.errors, .alert.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 4px;
}

.success, .alert.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 4px;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.card {
    border: 1px solid var(--card-border);
    border-radius: 6px;
    padding: 20px;
    text-align: center;
    transition: transform 0.2s ease;
    background-color: var(--card-bg);
}

.card h3 {
    margin-bottom: 10px;
}

.card a {
    display: inline-block;
    margin-top: 10px;
    color: var(--link);
    font-weight: bold;
    text-decoration: underline;
}

.card:hover {
    transform: translateY(-4px);
}

/* Footer */
footer {
    margin-top: 40px;
    text-align: center;
    font-size: 0.85rem;
    color: #555;
}

/* Responsive */
@media (max-width: 600px) {
    .navbar nav a {
        margin-left: 10px;
        font-size: 0.85rem;
    }
    .navbar .toggle-btn {
        font-size: 0.85rem;
        padding: 4px 8px;
    }
}