/* =====================================================================
   WORKERS PAGE - AI Worker Marketplace
   Three-band layout: Hero, Categories, Card Grid
   ===================================================================== */

/* ==========================================
   BAND 1: HERO AREA
   ========================================== */

.workers-page {
    background: var(--color-bg);
}

.workers-hero {
    padding: var(--space-20) var(--space-4) var(--space-12);
    background: var(--color-bg);
}

.workers-hero-container {
    max-width: var(--container-xl);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-4);
}

.workers-hero-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-4);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.workers-hero-title {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--color-text);
    letter-spacing: var(--tracking-tighter);
    line-height: var(--leading-tight);
    margin: 0;
    max-width: 700px;
}

.workers-hero-subtitle {
    font-size: var(--text-md);
    color: var(--color-text-muted);
    line-height: var(--leading-relaxed);
    margin: var(--space-2) 0 0 0;
    max-width: 560px;
}

.workers-search-bar {
    display: flex;
    align-items: center;
    width: 100%;
    max-width: 520px;
    background: var(--color-bg);
    border: 1px solid var(--color-border-hover);
    border-radius: var(--radius-full);
    padding: var(--space-1);
    padding-left: var(--space-5);
    margin-top: var(--space-6);
    transition: border-color var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out);
}

.workers-search-bar:focus-within {
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(26, 26, 46, 0.08);
}

.workers-search-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--color-text-subtle);
}

.workers-search-input {
    flex: 1;
    padding: var(--space-3) var(--space-3);
    font-family: var(--font-family);
    font-size: var(--text-md);
    color: var(--color-text);
    background: transparent;
    border: none;
    outline: none;
    min-width: 0;
}

.workers-search-input::placeholder {
    color: var(--color-text-subtle);
}

.workers-search-clear {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-out),
                color var(--duration-fast) var(--ease-out);
}

.workers-search-clear:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.workers-search-clear svg {
    width: 16px;
    height: 16px;
}

.workers-search-btn {
    padding: var(--space-3) var(--space-6);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-family: var(--font-family);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    white-space: nowrap;
    transition: background var(--duration-fast) var(--ease-out);
}

.workers-search-btn:hover {
    background: var(--color-primary-hover);
}

/* ==========================================
   BAND 2: CATEGORY NAVIGATION (Sticky)
   ========================================== */

.workers-categories {
    position: sticky;
    top: var(--header-height);
    z-index: var(--z-sticky);
    padding: var(--space-5) var(--space-4);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.workers-categories-container {
    max-width: var(--container-xl);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.workers-section-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-text);
    letter-spacing: var(--tracking-tight);
    margin: 0;
}

.workers-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
}

.workers-tab {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    font-family: var(--font-family);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
}

.workers-tab:hover {
    color: var(--color-text);
    background: var(--color-bg-hover);
}

.workers-tab.active {
    color: var(--color-text-inverse);
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.workers-tab.active .workers-tab-count {
    color: rgba(255, 255, 255, 0.7);
}

.workers-tab-count {
    font-size: var(--text-xs);
    color: var(--color-text-subtle);
    font-weight: var(--font-normal);
}

/* ==========================================
   BAND 3: PRODUCT CARD GRID
   ========================================== */

.workers-grid-section {
    padding: var(--space-10) var(--space-4) var(--space-20);
    background: var(--color-bg-alt);
    min-height: 50vh;
}

.workers-grid-container {
    max-width: var(--container-xl);
    margin: 0 auto;
}

/* Results Header */
.workers-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.workers-results-count {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.workers-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-5);
}

/* ==========================================
   NO RESULTS MESSAGE
   ========================================== */

.workers-no-results {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-16) var(--space-4);
    min-height: 300px;
}

.workers-no-results-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: var(--color-bg);
    border-radius: var(--radius-full);
    color: var(--color-text-subtle);
    margin-bottom: var(--space-6);
}

.workers-no-results-icon svg {
    width: 36px;
    height: 36px;
}

.workers-no-results-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--color-text);
    margin: 0 0 var(--space-2) 0;
}

.workers-no-results-text {
    font-size: var(--text-md);
    color: var(--color-text-muted);
    margin: 0 0 var(--space-6) 0;
    max-width: 400px;
}

.workers-no-results-btn {
    padding: var(--space-3) var(--space-6);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-family: var(--font-family);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-out);
}

.workers-no-results-btn:hover {
    background: var(--color-primary-hover);
}

/* ==========================================
   WORKER CARD - Enhanced Design
   ========================================== */

.worker-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: var(--space-6);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: border-color var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out),
                transform var(--duration-normal) var(--ease-out),
                opacity var(--duration-normal) var(--ease-out);
    min-height: 320px;
}

/* Card visibility states for smooth transitions */
.worker-card--visible {
    opacity: 1;
    transform: translateY(0);
}

.worker-card--hidden {
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    position: absolute;
    visibility: hidden;
}

.worker-card:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.worker-card--muted {
    opacity: 0.65;
}

.worker-card--muted:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
}

.worker-card-badge {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    padding: var(--space-1) var(--space-3);
    font-size: 10px;
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
    background: var(--color-bg-hover);
    border-radius: var(--radius-full);
}

.worker-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-xl);
    color: var(--color-text);
    margin-bottom: var(--space-5);
}

.worker-card-icon svg,
.worker-card-icon [data-lucide] {
    width: 28px;
    height: 28px;
}

.worker-card-title {
    font-size: var(--text-md);
    font-weight: var(--font-semibold);
    color: var(--color-text);
    letter-spacing: var(--tracking-tight);
    margin: 0 0 var(--space-2) 0;
    line-height: var(--leading-snug);
}

.worker-card-author {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.worker-card-author-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: var(--color-bg-hover);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.worker-card-author-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.worker-card-author-name {
    font-size: var(--text-xs);
    color: var(--color-text-subtle);
}

.worker-card-description {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: var(--leading-relaxed);
    margin: 0 0 var(--space-4) 0;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.worker-card-details {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    padding: var(--space-3);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-5);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    line-height: var(--leading-normal);
}

.worker-card-details-icon {
    flex-shrink: 0;
    width: 14px;
    height: 14px;
    margin-top: 1px;
    opacity: 0.6;
}

.worker-card-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-family);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-decoration: none;
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-out),
                transform var(--duration-fast) var(--ease-out);
    margin-top: auto;
}

.worker-card-btn:hover {
    background: var(--color-primary-hover);
}

.worker-card-btn--disabled {
    background: var(--color-bg-hover);
    color: var(--color-text-subtle);
    cursor: not-allowed;
}

.worker-card-btn--disabled:hover {
    background: var(--color-bg-hover);
}

/* ==========================================
   RESPONSIVE BREAKPOINTS
   ========================================== */

/* Tablet: 640px+ */
@media (min-width: 640px) {
    .workers-hero {
        padding: var(--space-24) var(--space-6) var(--space-12);
    }

    .workers-hero-container {
        gap: var(--space-5);
    }

    .workers-hero-title {
        font-size: var(--text-5xl);
    }

    .workers-hero-subtitle {
        font-size: var(--text-lg);
    }

    .workers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }

    .workers-categories {
        padding: var(--space-6) var(--space-6);
    }

    .workers-grid-section {
        padding: var(--space-10) var(--space-6) var(--space-20);
    }
}

/* Tablet Large: 768px+ */
@media (min-width: 768px) {
    .workers-hero-subtitle {
        font-size: var(--text-xl);
    }

    .workers-section-title {
        font-size: var(--text-xl);
    }

    .workers-tabs {
        gap: var(--space-2);
    }

    .workers-tab {
        padding: var(--space-2) var(--space-5);
    }

    .worker-card {
        padding: var(--space-6);
    }
}

/* Desktop: 1024px+ */
@media (min-width: 1024px) {
    .workers-hero {
        padding: var(--space-24) var(--space-8) var(--space-16);
    }

    .workers-hero-title {
        font-size: var(--text-5xl);
    }

    .workers-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-6);
    }

    .workers-categories {
        padding: var(--space-6) var(--space-8);
    }

    .workers-categories-container {
        flex-direction: row;
        justify-content: space-between;
    }

    .workers-grid-section {
        padding: var(--space-12) var(--space-8) var(--space-24);
    }

    .worker-card {
        padding: var(--space-8);
        min-height: 340px;
    }

    .worker-card-icon {
        width: 64px;
        height: 64px;
    }

    .worker-card-icon svg,
    .worker-card-icon [data-lucide] {
        width: 32px;
        height: 32px;
    }

    .worker-card-title {
        font-size: var(--text-lg);
    }
}

/* Desktop Large: 1280px+ */
@media (min-width: 1280px) {
    .workers-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-8);
    }

    .worker-card {
        min-height: 360px;
    }
}

/* Desktop XL: 1440px+ */
@media (min-width: 1440px) {
    .workers-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Screen reader only - for accessibility announcements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Mobile adjustments */
@media (max-width: 480px) {
    .workers-hero {
        padding: var(--space-16) var(--space-4) var(--space-10);
    }

    .workers-hero-container {
        gap: var(--space-3);
    }

    .workers-hero-title {
        font-size: var(--text-3xl);
    }

    .workers-hero-subtitle {
        font-size: var(--text-base);
    }

    .workers-search-bar {
        flex-direction: row;
        flex-wrap: wrap;
        border-radius: var(--radius-xl);
        padding: var(--space-2);
        padding-left: var(--space-3);
        margin-top: var(--space-4);
    }

    .workers-search-icon {
        width: 18px;
        height: 18px;
    }

    .workers-search-input {
        flex: 1;
        min-width: 100px;
        text-align: left;
        padding: var(--space-2) var(--space-2);
    }

    .workers-search-clear {
        width: 28px;
        height: 28px;
    }

    .workers-search-btn {
        width: 100%;
        margin-top: var(--space-2);
        padding: var(--space-3) var(--space-4);
        border-radius: var(--radius-lg);
    }

    .workers-categories {
        padding: var(--space-4) var(--space-4);
    }

    .workers-categories-container {
        gap: var(--space-3);
    }

    .workers-section-title {
        font-size: var(--text-md);
    }

    .workers-tabs {
        width: 100%;
        overflow-x: auto;
        flex-wrap: nowrap;
        justify-content: flex-start;
        padding-bottom: var(--space-2);
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    .workers-tabs::-webkit-scrollbar {
        display: none;
    }

    .workers-tab {
        flex-shrink: 0;
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-xs);
    }

    .workers-grid-section {
        padding: var(--space-6) var(--space-4) var(--space-12);
    }

    .workers-results-header {
        margin-bottom: var(--space-4);
        padding-bottom: var(--space-3);
    }

    .worker-card {
        padding: var(--space-5);
        min-height: auto;
    }

    .worker-card-icon {
        width: 48px;
        height: 48px;
        margin-bottom: var(--space-4);
    }

    .worker-card-icon svg,
    .worker-card-icon [data-lucide] {
        width: 24px;
        height: 24px;
    }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .worker-card,
    .worker-card--visible,
    .worker-card--hidden {
        transition: none;
    }

    .worker-card:hover {
        transform: none;
    }
}