/**
 * WP Job Portal shared design-system foundation.
 *
 * This file intentionally provides low-specificity foundations and opt-in
 * components. Existing templates retain their current presentation while
 * Release 3 pages progressively adopt the wpjp-ds-* component classes.
 */

:root {
    /* Semantic colour aliases preserve the administrator's existing theme. */
    --wpjp-ds-color-primary: var(--wpjp-primary-color, #6246c6);
    --wpjp-ds-color-primary-strong: var(--wpjp-secondary-color, #391a8c);
    --wpjp-ds-color-text: var(--wpjp-body-font-color, #3f4652);
    --wpjp-ds-color-text-muted: #667085;
    --wpjp-ds-color-border: var(--wpjp-border-color, #d9dee7);
    --wpjp-ds-color-surface: var(--wpjp-card-background, #ffffff);
    --wpjp-ds-color-canvas: var(--wpjp-background-color, #f6f7f9);
    --wpjp-ds-color-success: var(--wpjp-success-color, #16803c);
    --wpjp-ds-color-warning: var(--wpjp-warning-color, #a15c00);
    --wpjp-ds-color-danger: var(--wpjp-danger-color, #c52a35);
    --wpjp-ds-color-info: #1261a0;

    /* Typography and spacing use a predictable, responsive scale. */
    --wpjp-ds-font-family: inherit;
    --wpjp-ds-font-size-xs: 0.75rem;
    --wpjp-ds-font-size-sm: 0.875rem;
    --wpjp-ds-font-size-md: 1rem;
    --wpjp-ds-font-size-lg: 1.125rem;
    --wpjp-ds-font-size-xl: clamp(1.25rem, 1.1rem + 0.55vw, 1.625rem);
    --wpjp-ds-font-size-2xl: clamp(1.625rem, 1.35rem + 1vw, 2.25rem);
    --wpjp-ds-line-height: 1.55;
    --wpjp-ds-space-1: 0.25rem;
    --wpjp-ds-space-2: 0.5rem;
    --wpjp-ds-space-3: 0.75rem;
    --wpjp-ds-space-4: 1rem;
    --wpjp-ds-space-5: 1.25rem;
    --wpjp-ds-space-6: 1.5rem;
    --wpjp-ds-space-8: 2rem;
    --wpjp-ds-space-10: 2.5rem;
    --wpjp-ds-space-12: 3rem;

    /* Shared shape, elevation, focus and layout contracts. */
    --wpjp-ds-radius-sm: 0.375rem;
    --wpjp-ds-radius-md: 0.625rem;
    --wpjp-ds-radius-lg: 0.875rem;
    --wpjp-ds-shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
    --wpjp-ds-shadow-md: var(--wpjp-card-shadow, 0 4px 15px rgba(16, 24, 40, 0.08));
    --wpjp-ds-focus-ring: var(--wpjp-focus-shadow-color, 0 0 0 3px rgba(98, 70, 198, 0.25));
    --wpjp-ds-control-height: 2.75rem;
    --wpjp-ds-content-width: 75rem;
    --wpjp-ds-transition: 160ms ease;
}

/* Keep sizing and media predictable without resetting the host theme. */
:where(#wpjobportal-wrapper, #wpjobportaladmin-wrapper),
:where(#wpjobportal-wrapper, #wpjobportaladmin-wrapper) *,
:where(#wpjobportal-wrapper, #wpjobportaladmin-wrapper) *::before,
:where(#wpjobportal-wrapper, #wpjobportaladmin-wrapper) *::after {
    box-sizing: border-box;
}

:where(#wpjobportal-wrapper, #wpjobportaladmin-wrapper) :where(img, svg, video) {
    max-width: 100%;
}

:where(#wpjobportal-wrapper, #wpjobportaladmin-wrapper) :where(button, input, select, textarea) {
    font: inherit;
}

/* One WCAG-visible keyboard focus treatment across old and new controls. */
:where(#wpjobportal-wrapper, #wpjobportaladmin-wrapper) :where(a, button, input, select, textarea, [tabindex]):focus-visible {
    outline: 2px solid var(--wpjp-ds-color-primary);
    outline-offset: 2px;
    box-shadow: var(--wpjp-ds-focus-ring);
}

/* Screen-reader utility becomes visible when keyboard users focus it. */
.wpjp-ds-skip-link,
.wpjp-ds-visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.wpjp-ds-skip-link:focus {
    position: fixed !important;
    z-index: 100000 !important;
    inset-block-start: var(--wpjp-ds-space-3) !important;
    inset-inline-start: var(--wpjp-ds-space-3) !important;
    width: auto !important;
    height: auto !important;
    padding: var(--wpjp-ds-space-3) var(--wpjp-ds-space-4) !important;
    margin: 0 !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: normal !important;
    color: #ffffff !important;
    background: var(--wpjp-ds-color-primary-strong) !important;
    border-radius: var(--wpjp-ds-radius-md) !important;
}

/* Layout primitives shared by candidate, employer and administrator screens. */
.wpjp-ds-container {
    width: min(100% - 2rem, var(--wpjp-ds-content-width));
    margin-inline: auto;
}

.wpjp-ds-stack {
    display: flex;
    flex-direction: column;
    gap: var(--wpjp-ds-stack-gap, var(--wpjp-ds-space-4));
}

.wpjp-ds-cluster {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--wpjp-ds-cluster-gap, var(--wpjp-ds-space-3));
}

.wpjp-ds-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--wpjp-ds-grid-min, 16rem)), 1fr));
    gap: var(--wpjp-ds-grid-gap, var(--wpjp-ds-space-5));
}

.wpjp-ds-sidebar-layout {
    display: grid;
    grid-template-columns: minmax(14rem, 18rem) minmax(0, 1fr);
    gap: var(--wpjp-ds-space-6);
    align-items: start;
}

.wpjp-ds-card {
    min-width: 0;
    padding: var(--wpjp-ds-space-5);
    color: var(--wpjp-ds-color-text);
    background: var(--wpjp-ds-color-surface);
    border: 1px solid var(--wpjp-ds-color-border);
    border-radius: var(--wpjp-ds-radius-lg);
    box-shadow: var(--wpjp-ds-shadow-sm);
}

.wpjp-ds-card__header,
.wpjp-ds-card__footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--wpjp-ds-space-3);
}

.wpjp-ds-title {
    margin: 0;
    color: var(--wpjp-ds-color-text);
    font-size: var(--wpjp-ds-font-size-xl);
    line-height: 1.25;
}

.wpjp-ds-description {
    margin: 0;
    color: var(--wpjp-ds-color-text-muted);
    font-size: var(--wpjp-ds-font-size-sm);
    line-height: var(--wpjp-ds-line-height);
}

/* Form contract. Later templates can adopt this without page-specific CSS. */
.wpjp-ds-field {
    display: grid;
    gap: var(--wpjp-ds-space-2);
    min-width: 0;
}

.wpjp-ds-label {
    color: var(--wpjp-ds-color-text);
    font-size: var(--wpjp-ds-font-size-sm);
    font-weight: 600;
    line-height: 1.4;
}

.wpjp-ds-control {
    width: 100%;
    min-height: var(--wpjp-ds-control-height);
    padding: 0.625rem 0.75rem;
    color: var(--wpjp-ds-color-text);
    background: var(--wpjp-ds-color-surface);
    border: 1px solid var(--wpjp-ds-color-border);
    border-radius: var(--wpjp-ds-radius-md);
    transition: border-color var(--wpjp-ds-transition), box-shadow var(--wpjp-ds-transition);
}

textarea.wpjp-ds-control {
    min-height: 7rem;
    resize: vertical;
}

.wpjp-ds-control:focus {
    border-color: var(--wpjp-ds-color-primary);
}

.wpjp-ds-control[aria-invalid="true"],
.wpjp-ds-field.is-invalid .wpjp-ds-control {
    border-color: var(--wpjp-ds-color-danger);
}

.wpjp-ds-help,
.wpjp-ds-error {
    margin: 0;
    font-size: var(--wpjp-ds-font-size-xs);
    line-height: 1.5;
}

.wpjp-ds-help { color: var(--wpjp-ds-color-text-muted); }
.wpjp-ds-error { color: var(--wpjp-ds-color-danger); }

/* Minimum 44px target supports WCAG 2.2 target-size guidance. */
.wpjp-ds-button {
    display: inline-flex;
    min-height: var(--wpjp-ds-control-height);
    padding: 0.625rem 1rem;
    align-items: center;
    justify-content: center;
    gap: var(--wpjp-ds-space-2);
    color: #ffffff;
    background: var(--wpjp-ds-color-primary);
    border: 1px solid transparent;
    border-radius: var(--wpjp-ds-radius-md);
    font-size: var(--wpjp-ds-font-size-sm);
    font-weight: 600;
    line-height: 1.25;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: background-color var(--wpjp-ds-transition), border-color var(--wpjp-ds-transition), color var(--wpjp-ds-transition);
}

.wpjp-ds-button:hover {
    color: #ffffff;
    background: var(--wpjp-ds-color-primary-strong);
}

.wpjp-ds-button--secondary {
    color: var(--wpjp-ds-color-primary-strong);
    background: var(--wpjp-ds-color-surface);
    border-color: var(--wpjp-ds-color-border);
}

.wpjp-ds-button--secondary:hover {
    color: var(--wpjp-ds-color-primary-strong);
    background: var(--wpjp-ds-color-canvas);
    border-color: var(--wpjp-ds-color-primary);
}

.wpjp-ds-button:disabled,
.wpjp-ds-button[aria-disabled="true"] {
    opacity: 0.55;
    cursor: not-allowed;
}

.wpjp-ds-notice {
    padding: var(--wpjp-ds-space-4);
    color: var(--wpjp-ds-color-text);
    background: var(--wpjp-ds-color-canvas);
    border: 1px solid var(--wpjp-ds-color-border);
    border-inline-start: 4px solid var(--wpjp-ds-color-info);
    border-radius: var(--wpjp-ds-radius-md);
}

.wpjp-ds-notice--success { border-inline-start-color: var(--wpjp-ds-color-success); }
.wpjp-ds-notice--warning { border-inline-start-color: var(--wpjp-ds-color-warning); }
.wpjp-ds-notice--danger { border-inline-start-color: var(--wpjp-ds-color-danger); }

.wpjp-ds-table-scroll {
    max-width: 100%;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    -webkit-overflow-scrolling: touch;
}

.wpjp-ds-empty-state {
    display: grid;
    justify-items: center;
    gap: var(--wpjp-ds-space-3);
    padding: clamp(2rem, 7vw, 4rem) var(--wpjp-ds-space-5);
    color: var(--wpjp-ds-color-text-muted);
    text-align: center;
    background: var(--wpjp-ds-color-surface);
    border: 1px dashed var(--wpjp-ds-color-border);
    border-radius: var(--wpjp-ds-radius-lg);
}

@media (max-width: 782px) {
    .wpjp-ds-container {
        width: min(100% - 1.5rem, var(--wpjp-ds-content-width));
    }

    .wpjp-ds-sidebar-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .wpjp-ds-card {
        padding: var(--wpjp-ds-space-4);
    }
}

@media (max-width: 480px) {
    .wpjp-ds-button--mobile-full {
        width: 100%;
    }

    .wpjp-ds-card__header,
    .wpjp-ds-card__footer {
        align-items: stretch;
        flex-direction: column;
    }
}

@media (prefers-reduced-motion: reduce) {
    :where(#wpjobportal-wrapper, #wpjobportaladmin-wrapper) *,
    :where(#wpjobportal-wrapper, #wpjobportaladmin-wrapper) *::before,
    :where(#wpjobportal-wrapper, #wpjobportaladmin-wrapper) *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (forced-colors: active) {
    .wpjp-ds-button,
    .wpjp-ds-card,
    .wpjp-ds-control,
    .wpjp-ds-notice {
        border-color: CanvasText;
    }
}