.workspace-container {
    display: grid;
    gap: 12px;
    height: 100vh;
    max-height: 100vh;
    overflow: hidden;
    padding: 12px;
    box-sizing: border-box;
}

@media (min-width: 2560px) {
    .workspace-container {
        grid-template-columns: 420px 1fr;
        gap: 20px;
        padding: 24px;
    }
}

@media (min-width: 1600px) {
    .workspace-container {
        grid-template-columns: 360px 1fr;
        gap: 16px;
        padding: 16px;
    }
}

@media (min-width: 1200px) and (max-width: 1599px) {
    .workspace-container {
        grid-template-columns: 320px 1fr;
        gap: 12px;
        padding: 12px;
    }
}

@media (min-width: 900px) and (max-width: 1199px) {
    .workspace-container {
        grid-template-columns: 280px 1fr;
        gap: 12px;
        padding: 12px;
    }
}

@media (max-width: 899px) {
    .workspace-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
        gap: 12px;
        padding: 12px;
        height: auto;
        max-height: none;
        overflow-y: auto;
    }
}

@media (max-width: 400px) {
    .workspace-container {
        gap: 8px;
        padding: 8px;
    }
}

.left-panel {
    display: flex;
    flex-direction: column;
    gap: 12px;
    background-color: transparent;
    border-radius: var(--border-radius-lg);
    padding: 12px;
    overflow-y: auto;
    overflow-x: hidden;
    max-height: 100%;
    flex-shrink: 0;
    min-width: 0;
    outline: none;
    scrollbar-width: thin;
    scrollbar-color: var(--bg-tertiary) transparent;
}

.left-panel::-webkit-scrollbar {
    width: 8px;
}

.left-panel::-webkit-scrollbar-track {
    background: transparent;
}

.left-panel::-webkit-scrollbar-thumb {
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    border: 2px solid transparent;
    background-clip: content-box;
}

.left-panel::-webkit-scrollbar-thumb:hover {
    background-color: var(--accent-primary);
    background-clip: content-box;
}

.color-box-section {
    width: 100%;
    flex-shrink: 0;
}

.color-box {
    will-change: background-color;
}

.right-panel {
    background-color: transparent;
    padding: 0;
    overflow-y: auto;
    overflow-x: hidden;
    max-height: 100%;
    min-height: 0;
    outline: none;
    display: flex;
    flex-direction: column;
}

.right-panel::-webkit-scrollbar {
    width: 8px;
}

.right-panel::-webkit-scrollbar-track {
    background: transparent;
}

.right-panel::-webkit-scrollbar-thumb {
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    border: 2px solid transparent;
    background-clip: content-box;
}

.right-panel::-webkit-scrollbar-thumb:hover {
    background-color: var(--accent-primary);
    background-clip: content-box;
}

.right-panel .mode-panel {
    width: 100%;
    height: 100%;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: 1fr 1fr;
    gap: 12px;
    width: 100%;
    min-height: 0;
    align-items: stretch;
}

.bento-card--wide,
.tool-card--full {
    grid-column: span 2;
}

.bento-card--tall {
    grid-row: span 2;
    min-height: 300px;
}

@media (max-width: 1024px) {
    .bento-grid {
        gap: 10px;
    }
}

@media (max-width: 768px) {
    .bento-grid {
        gap: 10px;
    }

    .bento-card--wide,
    .tool-card--full {
        grid-column: span 1;
    }

    .bento-card--tall {
        grid-row: span 1;
        min-height: auto;
    }
}

@media (max-width: 480px) {
    .bento-grid {
        gap: 8px;
    }
}

.tool-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);

    background: rgba(255, 255, 255, 0.05);
    /* backdrop-filter: blur(16px); */
    /* -webkit-backdrop-filter: blur(16px); */

    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--border-radius-lg);

    padding: var(--spacing-lg);

    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);

    transition: all var(--transition-normal);

    overflow: hidden;
    min-height: 0;
    flex: 1;

    position: relative;
}

.tool-card:hover {
    border-color: rgba(255, 215, 0, 0.25);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.35),
        0 0 24px rgba(255, 215, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.tool-card:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 8px 16px rgba(255, 215, 0, 0.15);
}

.tool-card:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.tool-card--full {
    grid-column: span 2;
}

@media (max-width: 1200px) {
    .tool-card {
        padding: 12px;
    }
}

@media (max-width: 899px) {
    .tool-card {
        min-height: 420px !important;
        flex: none;
        padding: 10px;
    }
}

@media (max-width: 640px) {
    .tool-card {
        padding: var(--spacing-md);
    }
}

.bento-card {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 215, 0, 0.02) 100%);
    border: 1px solid rgba(255, 215, 0, 0.15);
    border-radius: var(--border-radius-lg);
    padding: 1rem;
    min-height: 140px;
    transition: all var(--transition-normal);
}

.bento-card:hover {
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.08) 0%, rgba(255, 215, 0, 0.04) 100%);
    box-shadow: 0 8px 24px rgba(255, 215, 0, 0.15);
    transform: translateY(-4px);
}

.bento-card:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.2);
    outline: none;
}

.bento-card__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    justify-content: space-between;
}

.bento-card__icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    font-size: 1.5rem;
}

.bento-card__title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    flex: 1;
}

.bento-card__subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    font-weight: 400;
}

.bento-card__description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

.bento-card__content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    flex: 1;
}

.bento-card__actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.bento-card button {
    flex: 1;
    min-width: 100px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

.bento-card--tool {
    border-left: 4px solid var(--accent-primary);
}

.bento-card--tool:hover {
    border-left-color: var(--accent-hover);
}

.bento-card--feature {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(255, 215, 0, 0.05) 100%);
    border-color: rgba(255, 215, 0, 0.25);
}

.bento-card--feature:hover {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.15) 0%, rgba(255, 215, 0, 0.08) 100%);
}

.bento-card--utility {
    border-top: 3px solid var(--accent-primary);
    border-radius: var(--border-radius-md);
}

.bento-card--utility:hover {
    border-top-color: var(--accent-hover);
}

.bento-card--disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.bento-card--disabled .bento-card__title,
.bento-card--disabled .bento-card__icon {
    color: var(--text-muted);
}

@keyframes cardEntrance {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.bento-card {
    animation: cardEntrance var(--transition-normal) ease-out;
}

.bento-card:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.bento-card *:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 1px;
}

@media (prefers-contrast: more) {
    .bento-card {
        border-width: 2px;
    }

    .bento-card--tool {
        border-left-width: 6px;
    }

    .bento-card--utility {
        border-top-width: 4px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .bento-card {
        animation: none;
    }

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

@media (prefers-color-scheme: dark) {
    .bento-card {
        background: linear-gradient(
            135deg,
            rgba(255, 255, 255, 0.03) 0%,
            rgba(255, 215, 0, 0.01) 100%
        );
    }

    .bento-card:hover {
        background: linear-gradient(
            135deg,
            rgba(255, 215, 0, 0.06) 0%,
            rgba(255, 215, 0, 0.03) 100%
        );
    }
}

#paletteCard .tool-content,
#shadeCard .tool-content,
#blendCard .tool-content,
#savedPalettesCard .tool-content {
    overflow-y: auto;
}

.mode-panel.hidden {
    display: none;
}

.explore-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border-radius: var(--border-radius-lg);
    border: 2px dashed var(--accent-primary);
    margin-top: var(--spacing-lg);
    min-height: 400px;
}

.explore-placeholder i {
    font-size: 64px;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-lg);
}

.explore-placeholder h3 {
    color: var(--accent-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.explore-placeholder p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.explore-placeholder .explore-hint {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

@media (min-width: 900px) and (max-width: 1199px) {
    .tool-card {
        padding: 10px;
    }

    .tool-title {
        font-size: 1rem;
    }

    .tool-icon {
        font-size: 1.25rem;
    }
}

@media (min-width: 768px) and (max-width: 899px) {
    .left-panel {
        display: grid;
        gap: 12px;
    }

    .color-box-section {
        grid-column: 1 / -1;
    }
}

@media (min-width: 600px) and (max-width: 899px) {
    .left-panel {
        gap: 10px;
        padding: 10px;
    }
}

@media (max-width: 768px) {
    button,
    [role="button"],
    .tool-card {
        min-height: 44px;
    }

    input,
    select,
    textarea {
        font-size: 16px;
    }
}

@media (max-width: 599px) {
    .workspace-container {
        gap: 10px;
        padding: 10px;
    }

    .left-panel {
        gap: 8px;
        padding: 8px;
    }

    .tool-card {
        padding: 10px;
    }

    .explore-placeholder {
        min-height: 300px;
        padding: var(--spacing-xl);
    }

    .explore-placeholder i {
        font-size: 48px;
    }

    .explore-placeholder h3 {
        font-size: 1.25rem;
    }
}

@media (max-width: 399px) {
    .workspace-container {
        gap: 8px;
        padding: 8px;
    }

    .left-panel {
        gap: 8px;
        padding: 8px;
    }

    .tool-card {
        padding: 8px;
    }

    .tool-title {
        font-size: 0.9rem;
    }

    .tool-icon {
        font-size: 1rem;
    }
}

.left-panel button:focus-visible,
.right-panel button:focus-visible,
.left-panel input:focus-visible,
.right-panel input:focus-visible,
.left-panel [tabindex]:focus-visible,
.right-panel [tabindex]:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

*:focus-visible {
    outline-offset: 2px;
}

@media (prefers-contrast: more) {
    .left-panel,
    .right-panel {
        border: 1px solid var(--accent-primary);
    }

    .tool-card {
        border-width: 2px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

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

@supports (padding: max(0px)) {
    .workspace-container {
        padding-left: max(12px, env(safe-area-inset-left));
        padding-right: max(12px, env(safe-area-inset-right));
        padding-top: max(12px, env(safe-area-inset-top));
        padding-bottom: max(12px, env(safe-area-inset-bottom));
    }
}

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

.text-center {
    text-align: center;
}

.w-100 {
    width: 100%;
}

.h-100 {
    height: 100%;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.tool-card {
    animation: slideDown 0.35s ease forwards;
    opacity: 0;
}

.tool-card:nth-child(1) {
    animation-delay: 0.05s;
}
.tool-card:nth-child(2) {
    animation-delay: 0.1s;
}
.tool-card:nth-child(3) {
    animation-delay: 0.15s;
}
.tool-card:nth-child(4) {
    animation-delay: 0.2s;
}

.tool-card-animate {
    animation: slideDown 0.35s ease forwards;
    opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
    .tool-card,
    .tool-card-animate {
        animation: none;
        opacity: 1;
    }
}