:root {
    --chdc-bg: #ffffff;
    --chdc-surface: #f7f8fb;
    --chdc-border: #d9dee8;
    --chdc-border-strong: #1f2937;
    --chdc-text: #111827;
    --chdc-muted: #5d6779;
    --chdc-primary: #1d4ed8;
    --chdc-primary-contrast: #ffffff;
    --chdc-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    --chdc-radius: 18px;
    --chdc-radius-sm: 12px;
    --chdc-focus: #2563eb;
}

[data-chdc-theme="dark"] {
    --chdc-bg: #0f172a;
    --chdc-surface: #111827;
    --chdc-border: #2a3445;
    --chdc-border-strong: #e5e7eb;
    --chdc-text: #f8fafc;
    --chdc-muted: #c0cad8;
    --chdc-primary: #60a5fa;
    --chdc-primary-contrast: #0b1220;
    --chdc-shadow: 0 16px 36px rgba(2, 6, 23, 0.35);
    --chdc-focus: #93c5fd;
}

.chdc-app,
.chdc-app * {
    box-sizing: border-box;
}

.chdc-app {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    color: var(--chdc-text);
    background: var(--chdc-bg);
    padding: 18px;
    border-radius: var(--chdc-radius);
    box-shadow: var(--chdc-shadow);
    margin: 0 auto;
    overflow-wrap: anywhere;
}

.chdc-toolbar {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.chdc-title {
    margin: 0 0 6px;
    font-size: clamp(1.5rem, 2.2vw, 2rem);
    line-height: 1.2;
}

.chdc-subtitle {
    margin: 0;
    color: var(--chdc-muted);
    font-size: clamp(0.95rem, 1.8vw, 1rem);
}

.chdc-theme-toggle,
.chdc-button {
    appearance: none;
    border: 1px solid var(--chdc-border);
    background: var(--chdc-bg);
    color: var(--chdc-text);
    border-radius: 999px;
    padding: 12px 16px;
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1.2;
    cursor: pointer;
    transition: transform .18s ease, border-color .18s ease, background-color .18s ease, color .18s ease;
}

.chdc-theme-toggle:hover,
.chdc-button:hover {
    transform: translateY(-1px);
    border-color: var(--chdc-primary);
}

.chdc-theme-toggle:focus-visible,
.chdc-button:focus-visible,
.chdc-field input:focus-visible,
.chdc-field select:focus-visible,
.chdc-field textarea:focus-visible {
    outline: 3px solid var(--chdc-focus);
    outline-offset: 2px;
}

.chdc-form {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    margin-bottom: 22px;
}

.chdc-field-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.chdc-field,
.chdc-field-full {
    min-width: 0;
}

.chdc-field label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
}

.chdc-field input,
.chdc-field select,
.chdc-field textarea {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    border: 1px solid var(--chdc-border);
    border-radius: var(--chdc-radius-sm);
    padding: 14px 15px;
    color: var(--chdc-text);
    background: var(--chdc-surface);
    font: inherit;
}

.chdc-field textarea {
    resize: vertical;
}

.chdc-help {
    margin: 8px 0 0;
    color: var(--chdc-muted);
    font-size: 0.9rem;
}

.chdc-inline-options {
    margin: 14px 0 12px;
}

.chdc-checkbox {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    color: var(--chdc-text);
}

.chdc-checkbox input {
    margin-top: 4px;
}

.chdc-error {
    min-height: 1.4em;
    color: #b91c1c;
    font-weight: 600;
    margin-bottom: 10px;
}

.chdc-button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chdc-button,
.chdc-theme-toggle {
    white-space: normal;
}

.chdc-button-primary {
    background: var(--chdc-primary);
    color: var(--chdc-primary-contrast);
    border-color: var(--chdc-primary);
}

.chdc-report {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    background: transparent;
    border: 0;
    margin-top: 10px;
}

.chdc-report-header {
    margin-bottom: 10px;
    padding-bottom: 12px;
    border-bottom: 4px solid var(--chdc-border-strong);
}

.chdc-report-header h3 {
    margin: 0 0 6px;
    font-size: clamp(1.25rem, 2vw, 1.55rem);
}

.chdc-report-header p {
    margin: 0;
    color: var(--chdc-muted);
}

.chdc-report-block {
    display: block;
    width: 100%;
    padding: 16px 0;
    border-bottom: 1px solid var(--chdc-border);
}

.chdc-report-label {
    color: var(--chdc-muted);
    font-size: clamp(1rem, 1.8vw, 1.05rem);
    font-weight: 700;
    margin-bottom: 6px;
}

.chdc-report-value {
    font-size: clamp(1.2rem, 2vw, 1.35rem);
    font-weight: 700;
    color: var(--chdc-text);
    line-height: 1.35;
}

.chdc-report-value-main {
    font-size: clamp(1.75rem, 4vw, 2.4rem);
}

.chdc-report-multiline {
    font-size: 1rem;
    font-weight: 600;
    color: var(--chdc-text);
    white-space: pre-wrap;
}

.chdc-disclaimer {
    padding-top: 14px;
    margin-top: 2px;
    color: var(--chdc-muted);
    font-size: 0.93rem;
    line-height: 1.55;
}

@media (min-width: 720px) {
    .chdc-app {
        padding: 24px;
    }

    .chdc-field-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .chdc-button-row {
        gap: 12px;
    }
}

@media print {
    .chdc-theme-toggle,
    .chdc-button-row,
    .chdc-help,
    .chdc-inline-options,
    .chdc-error {
        display: none !important;
    }

    .chdc-app {
        box-shadow: none;
        padding: 0;
        background: #fff;
        color: #000;
    }
}