/**
 * Yoyaku Navi Tools Design System v1.
 *
 * Components are scoped below .yn-ui so WordPress themes and existing tools
 * keep their current appearance. New tools should use .yn-ui as their root.
 */

.yn-ui {
    --yn-ui-color-brand: #2563eb;
    --yn-ui-color-brand-hover: #1d4ed8;
    --yn-ui-color-brand-soft: #eff6ff;
    --yn-ui-color-profit: #15803d;
    --yn-ui-color-profit-soft: #f0fdf4;
    --yn-ui-color-warning: #c2410c;
    --yn-ui-color-warning-soft: #fff7ed;
    --yn-ui-color-error: #b91c1c;
    --yn-ui-color-error-soft: #fef2f2;
    --yn-ui-color-info: #0369a1;
    --yn-ui-color-info-soft: #f0f9ff;
    --yn-ui-color-text: #1f2937;
    --yn-ui-color-muted: #6b7280;
    --yn-ui-color-border: #d1d5db;
    --yn-ui-color-surface: #ffffff;
    --yn-ui-color-surface-subtle: #f8fafc;
    --yn-ui-radius-small: 8px;
    --yn-ui-radius-medium: 12px;
    --yn-ui-radius-large: 16px;
    --yn-ui-shadow-card: 0 8px 24px rgba(15, 23, 42, 0.08);
    --yn-ui-focus-ring: 0 0 0 3px rgba(37, 99, 235, 0.24);
    color: var(--yn-ui-color-text);
    font-family: inherit;
    font-size: 16px;
    line-height: 1.6;
    max-width: 100%;
    overflow-wrap: anywhere;
}

.yn-ui,
.yn-ui *,
.yn-ui *::before,
.yn-ui *::after {
    box-sizing: border-box;
}

.yn-ui .yn-ui-stack {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
}

.yn-ui .yn-ui-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    min-width: 0;
}

/* Button */
.yn-ui .yn-ui-button {
    align-items: center;
    appearance: none;
    background: var(--yn-ui-color-brand);
    border: 1px solid transparent;
    border-radius: var(--yn-ui-radius-small);
    color: #ffffff;
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    font-weight: 700;
    gap: 8px;
    justify-content: center;
    line-height: 1.3;
    min-height: 44px;
    max-width: 100%;
    padding: 10px 18px;
    text-align: center;
    text-decoration: none;
    touch-action: manipulation;
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
    vertical-align: middle;
}

.yn-ui .yn-ui-button:hover {
    background: var(--yn-ui-color-brand-hover);
    color: #ffffff;
    text-decoration: none;
}

.yn-ui .yn-ui-button:focus-visible {
    outline: 2px solid transparent;
    box-shadow: var(--yn-ui-focus-ring);
}

.yn-ui .yn-ui-button.is-secondary {
    background: var(--yn-ui-color-surface);
    border-color: var(--yn-ui-color-border);
    color: var(--yn-ui-color-text);
}

.yn-ui .yn-ui-button.is-secondary:hover {
    background: var(--yn-ui-color-surface-subtle);
    border-color: #9ca3af;
    color: var(--yn-ui-color-text);
}

.yn-ui .yn-ui-button.is-success {
    background: var(--yn-ui-color-profit);
}

.yn-ui .yn-ui-button.is-warning {
    background: var(--yn-ui-color-warning);
}

.yn-ui .yn-ui-button.is-danger {
    background: var(--yn-ui-color-error);
}

.yn-ui .yn-ui-button.is-full-width {
    width: 100%;
}

.yn-ui .yn-ui-button:disabled,
.yn-ui .yn-ui-button[aria-disabled="true"] {
    cursor: not-allowed;
    opacity: 0.55;
    pointer-events: none;
}

.yn-ui .yn-ui-actions {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* Input and Select */
.yn-ui .yn-ui-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.yn-ui .yn-ui-label {
    color: var(--yn-ui-color-text);
    display: block;
    font-size: 0.9375rem;
    font-weight: 700;
    line-height: 1.5;
}

.yn-ui .yn-ui-required {
    color: var(--yn-ui-color-error);
    font-size: 0.8125rem;
    margin-inline-start: 4px;
}

.yn-ui .yn-ui-input,
.yn-ui .yn-ui-select,
.yn-ui .yn-ui-textarea {
    appearance: none;
    background: var(--yn-ui-color-surface);
    border: 1px solid var(--yn-ui-color-border);
    border-radius: var(--yn-ui-radius-small);
    color: var(--yn-ui-color-text);
    display: block;
    font: inherit;
    font-size: 16px;
    line-height: 1.4;
    margin: 0;
    max-width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    width: 100%;
}

.yn-ui .yn-ui-select {
    appearance: auto;
}

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

.yn-ui .yn-ui-input::placeholder,
.yn-ui .yn-ui-textarea::placeholder {
    color: #9ca3af;
    opacity: 1;
}

.yn-ui .yn-ui-input:focus,
.yn-ui .yn-ui-select:focus,
.yn-ui .yn-ui-textarea:focus {
    border-color: var(--yn-ui-color-brand);
    box-shadow: var(--yn-ui-focus-ring);
    outline: none;
}

.yn-ui .yn-ui-input:disabled,
.yn-ui .yn-ui-select:disabled,
.yn-ui .yn-ui-textarea:disabled {
    background: #f3f4f6;
    color: var(--yn-ui-color-muted);
    cursor: not-allowed;
}

.yn-ui .yn-ui-field.has-error .yn-ui-input,
.yn-ui .yn-ui-field.has-error .yn-ui-select,
.yn-ui .yn-ui-field.has-error .yn-ui-textarea,
.yn-ui .yn-ui-input[aria-invalid="true"],
.yn-ui .yn-ui-select[aria-invalid="true"],
.yn-ui .yn-ui-textarea[aria-invalid="true"] {
    border-color: var(--yn-ui-color-error);
}

.yn-ui .yn-ui-help,
.yn-ui .yn-ui-error-text {
    color: var(--yn-ui-color-muted);
    font-size: 0.8125rem;
    line-height: 1.5;
    margin: 0;
}

.yn-ui .yn-ui-error-text {
    color: var(--yn-ui-color-error);
    font-weight: 600;
}

/* Card */
.yn-ui .yn-ui-card {
    background: var(--yn-ui-color-surface);
    border: 1px solid #e5e7eb;
    border-radius: var(--yn-ui-radius-large);
    box-shadow: var(--yn-ui-shadow-card);
    max-width: 100%;
    min-width: 0;
    overflow: hidden;
}

.yn-ui .yn-ui-card-header,
.yn-ui .yn-ui-card-body,
.yn-ui .yn-ui-card-footer {
    padding: 20px;
}

.yn-ui .yn-ui-card-header {
    border-bottom: 1px solid #e5e7eb;
}

.yn-ui .yn-ui-card-footer {
    background: var(--yn-ui-color-surface-subtle);
    border-top: 1px solid #e5e7eb;
}

.yn-ui .yn-ui-card-title {
    color: var(--yn-ui-color-text);
    font-size: 1.125rem;
    font-weight: 800;
    line-height: 1.4;
    margin: 0;
}

.yn-ui .yn-ui-card-description {
    color: var(--yn-ui-color-muted);
    margin: 6px 0 0;
}

/* ResultBox */
.yn-ui .yn-ui-result-box {
    background: var(--yn-ui-color-brand-soft);
    border: 1px solid #bfdbfe;
    border-inline-start: 5px solid var(--yn-ui-color-brand);
    border-radius: var(--yn-ui-radius-medium);
    min-width: 0;
    padding: 18px;
}

.yn-ui .yn-ui-result-box.is-profit {
    background: var(--yn-ui-color-profit-soft);
    border-color: #bbf7d0;
    border-inline-start-color: var(--yn-ui-color-profit);
}

.yn-ui .yn-ui-result-box.is-warning {
    background: var(--yn-ui-color-warning-soft);
    border-color: #fed7aa;
    border-inline-start-color: var(--yn-ui-color-warning);
}

.yn-ui .yn-ui-result-box.is-error {
    background: var(--yn-ui-color-error-soft);
    border-color: #fecaca;
    border-inline-start-color: var(--yn-ui-color-error);
}

.yn-ui .yn-ui-result-label {
    color: var(--yn-ui-color-muted);
    display: block;
    font-size: 0.875rem;
    font-weight: 700;
}

.yn-ui .yn-ui-result-value {
    color: var(--yn-ui-color-text);
    display: block;
    font-size: clamp(1.75rem, 8vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.2;
    margin-top: 4px;
    overflow-wrap: anywhere;
}

.yn-ui .yn-ui-result-box.is-profit .yn-ui-result-value {
    color: var(--yn-ui-color-profit);
}

.yn-ui .yn-ui-result-note {
    color: var(--yn-ui-color-muted);
    font-size: 0.8125rem;
    margin: 6px 0 0;
}

/* Badge */
.yn-ui .yn-ui-badge {
    align-items: center;
    background: var(--yn-ui-color-brand-soft);
    border: 1px solid #bfdbfe;
    border-radius: 999px;
    color: var(--yn-ui-color-brand-hover);
    display: inline-flex;
    font-size: 0.75rem;
    font-weight: 800;
    line-height: 1.2;
    max-width: 100%;
    padding: 4px 9px;
    vertical-align: middle;
}

.yn-ui .yn-ui-badge.is-success {
    background: var(--yn-ui-color-profit-soft);
    border-color: #bbf7d0;
    color: var(--yn-ui-color-profit);
}

.yn-ui .yn-ui-badge.is-warning {
    background: var(--yn-ui-color-warning-soft);
    border-color: #fed7aa;
    color: var(--yn-ui-color-warning);
}

.yn-ui .yn-ui-badge.is-error {
    background: var(--yn-ui-color-error-soft);
    border-color: #fecaca;
    color: var(--yn-ui-color-error);
}

.yn-ui .yn-ui-badge.is-neutral {
    background: #f3f4f6;
    border-color: #e5e7eb;
    color: #4b5563;
}

/* Alert */
.yn-ui .yn-ui-alert {
    background: var(--yn-ui-color-info-soft);
    border: 1px solid #bae6fd;
    border-radius: var(--yn-ui-radius-medium);
    color: #0c4a6e;
    display: flex;
    gap: 10px;
    max-width: 100%;
    padding: 14px 16px;
}

.yn-ui .yn-ui-alert.is-success {
    background: var(--yn-ui-color-profit-soft);
    border-color: #bbf7d0;
    color: #14532d;
}

.yn-ui .yn-ui-alert.is-warning {
    background: var(--yn-ui-color-warning-soft);
    border-color: #fed7aa;
    color: #7c2d12;
}

.yn-ui .yn-ui-alert.is-error {
    background: var(--yn-ui-color-error-soft);
    border-color: #fecaca;
    color: #7f1d1d;
}

.yn-ui .yn-ui-alert-icon {
    flex: 0 0 auto;
    font-weight: 800;
}

.yn-ui .yn-ui-alert-content {
    min-width: 0;
}

.yn-ui .yn-ui-alert-title {
    display: block;
    font-weight: 800;
    margin: 0 0 2px;
}

.yn-ui .yn-ui-alert-message {
    margin: 0;
}

@media (max-width: 640px) {
    .yn-ui {
        font-size: 16px;
    }

    .yn-ui .yn-ui-card-header,
    .yn-ui .yn-ui-card-body,
    .yn-ui .yn-ui-card-footer {
        padding: 16px;
    }

    .yn-ui .yn-ui-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .yn-ui .yn-ui-actions .yn-ui-button {
        width: 100%;
    }

    .yn-ui .yn-ui-result-box {
        padding: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .yn-ui .yn-ui-button {
        transition: none;
    }
}