/**
 * Der Prozentrechner Tools — gemeinsames Design-System.
 * Ruhig, klar, mobil zuerst. Eine Button-, Input- und Card-Sprache.
 */

.dpr-tool {
    --dpr-primary: #14467c;
    --dpr-accent: #00b67a;
    --dpr-error: #b3261e;
    --dpr-text: #1a1a1a;
    --dpr-muted: #5f6368;
    --dpr-border: #d6dbe1;
    --dpr-bg: #ffffff;
    --dpr-bg-soft: #f4f7fa;
    --dpr-radius: 12px;

    max-width: 640px;
    margin: 0 auto 2rem;
    padding: 1.5rem;
    background: var(--dpr-bg);
    border: 1px solid var(--dpr-border);
    border-radius: var(--dpr-radius);
    color: var(--dpr-text);
    font-size: 1rem;
    line-height: 1.5;
    box-sizing: border-box;
}

.dpr-tool *,
.dpr-tool *::before,
.dpr-tool *::after {
    box-sizing: border-box;
}

/* Tabs (Prozentrechner) */
.dpr-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.dpr-tabs [role="tab"] {
    flex: 1 1 auto;
    min-height: 44px;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--dpr-border);
    border-radius: 8px;
    background: var(--dpr-bg-soft);
    color: var(--dpr-text);
    font: inherit;
    cursor: pointer;
}

.dpr-tabs [role="tab"][aria-selected="true"] {
    background: var(--dpr-primary);
    border-color: var(--dpr-primary);
    color: #fff;
    font-weight: 600;
}

/* Felder */
.dpr-field {
    margin-bottom: 1rem;
}

.dpr-field label,
.dpr-legend {
    display: block;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.dpr-field input[type="text"],
.dpr-field input[type="number"] {
    width: 100%;
    min-height: 48px;
    padding: 0.65rem 0.8rem;
    border: 1px solid var(--dpr-border);
    border-radius: 8px;
    font: inherit;
    color: var(--dpr-text);
    background: #fff;
}

.dpr-field input:focus-visible {
    outline: 3px solid var(--dpr-primary);
    outline-offset: 1px;
}

.dpr-field input[aria-invalid="true"] {
    border-color: var(--dpr-error);
}

.dpr-error {
    margin: 0.35rem 0 0;
    color: var(--dpr-error);
    font-size: 0.9rem;
}

.dpr-note {
    margin: 0.5rem 0 0;
    color: var(--dpr-muted);
    font-size: 0.9rem;
}

/* Radio-Gruppen & Presets */
.dpr-radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
}

.dpr-radio-group label {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-height: 44px;
    font-weight: 400;
    cursor: pointer;
}

.dpr-radio-group input[type="radio"] {
    width: 1.25rem;
    height: 1.25rem;
    accent-color: var(--dpr-primary);
}

.dpr-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.dpr-presets button {
    min-height: 44px;
    padding: 0.5rem 1rem;
    border: 1px solid var(--dpr-border);
    border-radius: 999px;
    background: var(--dpr-bg-soft);
    font: inherit;
    cursor: pointer;
}

.dpr-presets button:hover {
    border-color: var(--dpr-primary);
}

/* Ergebnisbereich */
.dpr-result {
    margin: 1.25rem 0;
    padding: 1.1rem 1.25rem;
    background: var(--dpr-bg-soft);
    border-radius: 8px;
    border-left: 4px solid var(--dpr-primary);
}

.dpr-result .dpr-hint {
    margin: 0;
    color: var(--dpr-muted);
}

.dpr-result-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 0.25rem;
}

.dpr-result-label {
    margin: 0 0 0.75rem;
    color: var(--dpr-muted);
    font-size: 0.95rem;
}

.dpr-formula {
    margin: 0.75rem 0 0.25rem;
    font-weight: 600;
}

.dpr-steps {
    margin: 0.25rem 0 0;
    padding-left: 1.25rem;
}

.dpr-steps li {
    margin-bottom: 0.25rem;
}

.dpr-kv {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.25rem 1rem;
    margin: 0.5rem 0 0;
}

.dpr-kv dt {
    color: var(--dpr-muted);
}

.dpr-kv dd {
    margin: 0;
    font-weight: 600;
    text-align: right;
}

/* Zurücksetzen */
.dpr-reset {
    min-height: 44px;
    padding: 0.6rem 1.25rem;
    border: 1px solid var(--dpr-border);
    border-radius: 8px;
    background: #fff;
    font: inherit;
    cursor: pointer;
}

.dpr-reset:hover {
    border-color: var(--dpr-primary);
    color: var(--dpr-primary);
}

/* Chart & Tabelle */
.dpr-chart-wrap {
    margin: 1.25rem 0;
    position: relative;
    height: 280px;
}

.dpr-table-wrap {
    margin: 1.25rem 0;
    overflow-x: auto;
}

.dpr-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.dpr-table caption {
    text-align: left;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.dpr-table th,
.dpr-table td {
    padding: 0.55rem 0.6rem;
    border-bottom: 1px solid var(--dpr-border);
    text-align: right;
}

.dpr-table th:first-child,
.dpr-table td:first-child {
    text-align: left;
}

.dpr-table thead th {
    background: var(--dpr-bg-soft);
}

/* Fokus & Reduced Motion */
.dpr-tool button:focus-visible,
.dpr-tool input:focus-visible {
    outline: 3px solid var(--dpr-primary);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .dpr-tool * {
        transition: none !important;
        animation: none !important;
    }
}

@media (max-width: 480px) {
    .dpr-tool {
        padding: 1rem;
    }

    .dpr-result-value {
        font-size: 1.5rem;
    }
}