:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 12px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

html, body {
    /* Standard-Scroll-Verhalten erlauben (Pull-to-Refresh aktivieren) */
    overscroll-behavior-y: auto;

    /* Sicherstellen, dass die Seite hoch genug zum Scrollen ist */
    min-height: 100vh;
}

body {
    background-color: var(--bg);
    color: var(--text);
    padding: 16px;
    max-width: 600px;
    margin: 0 auto;
    padding-bottom: 40px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-top: 8px;
}

h1 { font-size: 1.5rem; font-weight: 700; }
h2 { font-size: 1.1rem; font-weight: 600; margin-bottom: 12px; }

.card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    border: 1px solid var(--border);
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 16px;
}

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
}

input[type="date"],
input[type="month"],
input[type="number"],
select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    background: #fff;
    color: var(--text);
    outline: none;
    appearance: none;
}

input:focus, select:focus {
    border-color: var(--primary);
}

.radio-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.radio-btn {
    position: relative;
}

.radio-btn input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-btn label {
    display: block;
    text-align: center;
    padding: 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text);
    margin: 0;
}

.radio-btn input:checked + label {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

button {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

button:active {
    background: var(--primary-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    padding: 8px 12px;
    font-size: 0.8rem;
    width: auto;
}

.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

.summary-box {
    background: var(--bg);
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.summary-box .title {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
}

.summary-box .value {
    font-size: 1.2rem;
    font-weight: 700;
    margin-top: 4px;
}

.summary-box .sub {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
    margin-top: 2px;
}

.total-box {
    background: #eff6ff;
    border-color: #bfdbfe;
    padding: 12px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.total-box span { font-weight: 600; }
.total-box strong { font-size: 1.2rem; color: var(--primary); }

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    font-size: 0.9rem;
}

th, td {
    padding: 10px 8px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th { color: var(--text-muted); font-size: 0.8rem; }

.status-msg {
    padding: 10px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 12px;
    display: none;
}
.status-success { background: #dcfce7; color: #166534; }
.status-error { background: #fee2e2; color: #991b1b; }