/*
 * color-picker.css - Image color picker page
 * Contains the image workspace, pixel loupe, color values, palettes, and responsive layout.
 */

.image-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 0.65rem;
    color: var(--primary-hover);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ========== Main picker card ========== */
.picker-card {
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.picker-section-heading {
    padding: 1.5rem 1.5rem 0;
}

.picker-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--surface-muted);
    border-bottom: 1px solid var(--border-color);
}

.upload-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.image-primary-button,
.image-secondary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 42px;
    padding: 0.65rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.88rem;
    font-weight: 700;
    transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
}

.image-primary-button {
    color: #ffffff;
    background: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.image-primary-button:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 5px 16px rgba(239, 68, 68, 0.24);
}

.image-secondary-button {
    color: var(--text-color);
    background: var(--surface);
    border: 1px solid var(--border-color);
}

.image-secondary-button:hover {
    background: #ffffff;
    border-color: #cbd5e1;
}

.image-primary-button:active,
.image-secondary-button:active {
    transform: scale(0.98);
}

.image-primary-button:focus-visible,
.image-secondary-button:focus-visible,
.color-value-row:focus-visible,
.palette-swatch:focus-visible,
.recent-swatch:focus-visible,
.clear-history:focus-visible,
#colorCanvas:focus-visible {
    outline: 3px solid rgba(239, 68, 68, 0.28);
    outline-offset: 2px;
}

.upload-hint {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--light-text);
    font-size: 0.82rem;
}

.upload-hint i {
    color: #8b5cf6;
}

.picker-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(300px, 0.72fr);
    min-height: 620px;
}

/* ========== Image workspace ========== */
.image-workspace {
    min-width: 0;
    padding: 1.25rem;
    background-color: #eef1f5;
    background-image: linear-gradient(45deg, rgba(148, 163, 184, 0.08) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(148, 163, 184, 0.08) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(148, 163, 184, 0.08) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(148, 163, 184, 0.08) 75%);
    background-position: 0 0, 0 12px, 12px -12px, -12px 0;
    background-size: 24px 24px;
    border-right: 1px solid var(--border-color);
}

.canvas-frame {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    overflow: hidden;
    background: #111827;
    border: 1px solid rgba(15, 23, 42, 0.25);
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.16);
}

#colorCanvas {
    display: block;
    width: 100%;
    height: auto;
    max-height: 660px;
    object-fit: contain;
    cursor: crosshair;
    touch-action: none;
}

.picker-marker {
    position: absolute;
    z-index: 4;
    display: none;
    width: 22px;
    height: 22px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.9), 0 2px 8px rgba(15, 23, 42, 0.5);
    pointer-events: none;
    transform: translate(-50%, -50%);
}

.picker-marker::before,
.picker-marker::after {
    position: absolute;
    top: 50%;
    left: 50%;
    content: '';
    background: #ffffff;
    box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.28);
    transform: translate(-50%, -50%);
}

.picker-marker::before {
    width: 2px;
    height: 5px;
}

.picker-marker::after {
    width: 5px;
    height: 2px;
}

.pixel-loupe {
    position: absolute;
    z-index: 6;
    display: none;
    overflow: hidden;
    width: 122px;
    background: #ffffff;
    border: 2px solid #ffffff;
    border-radius: 14px;
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.32);
    pointer-events: none;
}

.pixel-loupe.is-visible {
    display: block;
}

#loupeCanvas {
    display: block;
    width: 118px;
    height: 94px;
    background: #ffffff;
    image-rendering: pixelated;
}

.pixel-loupe span {
    display: block;
    padding: 0.35rem 0.45rem;
    color: var(--text-color);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 800;
    text-align: center;
}

.drop-overlay,
.image-loading {
    position: absolute;
    inset: 0;
    z-index: 8;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 0.8rem;
    color: #ffffff;
    background: rgba(15, 23, 42, 0.78);
    backdrop-filter: blur(4px);
}

.drop-overlay i {
    color: #fda4af;
    font-size: 2.5rem;
}

.drop-overlay strong {
    font-size: 1.05rem;
}

.image-workspace.is-dragging .drop-overlay,
.image-loading.is-visible {
    display: flex;
}

.image-loading i {
    color: #fda4af;
    font-size: 1.7rem;
}

.image-meta {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 0.85rem;
    color: var(--light-text);
    font-size: 0.78rem;
}

.image-meta span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.image-meta i {
    margin-right: 0.35rem;
    color: var(--primary-color);
}

.canvas-help {
    margin-top: 0.5rem;
    color: var(--light-text);
    font-size: 0.78rem;
    text-align: center;
}

.canvas-help i {
    margin-right: 0.25rem;
    color: var(--primary-color);
}

/* ========== Color details ========== */
.color-panel {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding: 1.25rem;
    background: var(--surface);
}

.selected-color-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--surface-muted);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.selected-swatch {
    flex: 0 0 auto;
    width: 74px;
    height: 74px;
    background: #ef4444;
    border: 5px solid #ffffff;
    border-radius: 18px;
    box-shadow: 0 0 0 1px var(--border-color), 0 5px 18px rgba(15, 23, 42, 0.14);
}

.selected-color-card > div:last-child {
    display: flex;
    min-width: 0;
    flex-direction: column;
}

.panel-label {
    color: var(--light-text);
    font-size: 0.69rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.selected-color-card strong {
    overflow: hidden;
    margin: 0.12rem 0;
    color: var(--text-color);
    font-family: var(--font-mono);
    font-size: 1.35rem;
    text-overflow: ellipsis;
}

.selected-color-card #pixelPosition {
    color: var(--light-text);
    font-size: 0.75rem;
}

.color-values {
    display: grid;
    gap: 0.55rem;
}

.color-value-row {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) 18px;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.7rem 0.8rem;
    color: var(--text-color);
    text-align: left;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.color-value-row:hover {
    background: var(--surface-muted);
    border-color: #cbd5e1;
}

.color-value-row:active {
    transform: scale(0.99);
}

.color-value-row span {
    color: var(--light-text);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.06em;
}

.color-value-row strong {
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.color-value-row i {
    color: #94a3b8;
    font-size: 0.8rem;
}

.palette-section,
.recent-section {
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.panel-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.panel-heading > div {
    display: flex;
    flex-direction: column;
}

.panel-heading p {
    margin-top: 0.1rem;
    color: var(--light-text);
    font-size: 0.75rem;
}

.panel-heading > i {
    color: #8b5cf6;
}

.palette-list {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 0.4rem;
}

.palette-swatch,
.recent-swatch {
    position: relative;
    border: 2px solid #ffffff;
    box-shadow: 0 0 0 1px var(--border-color);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.palette-swatch {
    aspect-ratio: 1;
    min-width: 0;
    border-radius: 9px;
}

.palette-swatch:hover,
.recent-swatch:hover {
    z-index: 2;
    box-shadow: 0 0 0 2px var(--primary-color), 0 5px 12px rgba(15, 23, 42, 0.18);
    transform: translateY(-2px);
}

.clear-history {
    padding: 0.25rem 0.45rem;
    color: var(--primary-hover);
    background: transparent;
    border: 0;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
}

.clear-history:hover {
    background: var(--primary-soft);
}

.recent-list {
    display: flex;
    min-height: 34px;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.recent-swatch {
    width: 30px;
    height: 30px;
    border-radius: 8px;
}

.empty-history {
    color: #94a3b8;
    font-size: 0.76rem;
}

.converter-action-button:focus-visible,
.converter-download-button:focus-visible,
.converter-dropzone:focus-within {
    outline: 3px solid rgba(239, 68, 68, 0.25);
    outline-offset: 2px;
}

.image-tool-panel[hidden] {
    display: none !important;
}

/* ========== WebP and ICO converters ========== */
.converter-card {
    overflow: hidden;
    padding: 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.converter-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 2rem;
}

.converter-header > div {
    max-width: 760px;
}

.converter-header .image-eyebrow {
    margin-bottom: 0.4rem;
}

.converter-header h2 {
    margin-bottom: 0.35rem;
    color: var(--text-color);
    font-size: clamp(1.55rem, 3vw, 2.2rem);
    line-height: 1.18;
    letter-spacing: -0.03em;
}

.converter-header p {
    color: var(--light-text);
    font-size: 0.92rem;
}

.converter-format-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-width: 74px;
    min-height: 42px;
    padding: 0.55rem 0.8rem;
    color: var(--primary-hover);
    background: var(--primary-soft);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--border-radius);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.05em;
}

.gif-first-frame-note {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    margin: 1.25rem 0;
    padding: 0.85rem 1rem;
    color: #854d0e;
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: var(--border-radius);
    font-size: 0.82rem;
}

.gif-first-frame-note i {
    margin-top: 0.16rem;
    color: #d97706;
}

.converter-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(310px, 0.75fr);
    gap: 1.25rem;
}

.converter-source-column {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 1rem;
}

.converter-dropzone {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 290px;
    flex-direction: column;
    gap: 0.65rem;
    padding: 1.5rem;
    color: var(--light-text);
    text-align: center;
    background: var(--surface-muted);
    border: 2px dashed #cbd5e1;
    border-radius: var(--radius-lg);
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.converter-dropzone.is-dragging {
    background: var(--primary-soft);
    border-color: var(--primary-color);
    transform: scale(0.995);
}

.converter-dropzone > i {
    display: grid;
    width: 58px;
    height: 58px;
    place-items: center;
    color: var(--primary-color);
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--box-shadow);
    font-size: 1.45rem;
}

.converter-dropzone h3 {
    color: var(--text-color);
    font-size: 1.05rem;
}

.converter-dropzone p,
.converter-dropzone > span {
    font-size: 0.78rem;
}

.converter-dropzone .image-primary-button {
    margin-top: 0.2rem;
}

.converter-preview-card {
    padding: 1rem;
    background: var(--surface-muted);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.converter-preview-frame {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 260px;
    overflow: hidden;
    background-color: #e5e7eb;
    background-image: linear-gradient(45deg, #f8fafc 25%, transparent 25%),
        linear-gradient(-45deg, #f8fafc 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #f8fafc 75%),
        linear-gradient(-45deg, transparent 75%, #f8fafc 75%);
    background-position: 0 0, 0 12px, 12px -12px, -12px 0;
    background-size: 24px 24px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.converter-preview-frame canvas {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 430px;
}

.converter-preview-square canvas {
    width: min(100%, 380px);
    aspect-ratio: 1;
}

.converter-file-meta {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 0.8rem;
}

.converter-file-meta strong {
    overflow: hidden;
    color: var(--text-color);
    font-size: 0.84rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.converter-file-meta span {
    flex: 0 0 auto;
    color: var(--light-text);
    font-size: 0.76rem;
}

.gif-inline-warning {
    margin-top: 0.7rem;
    padding: 0.6rem 0.7rem;
    color: #854d0e;
    background: #fffbeb;
    border-radius: 8px;
    font-size: 0.76rem;
}

.gif-inline-warning i {
    margin-right: 0.35rem;
    color: #d97706;
}

.converter-settings {
    display: flex;
    align-self: start;
    flex-direction: column;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--surface-muted);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.converter-setting-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    color: var(--text-color);
    font-size: 0.92rem;
    font-weight: 800;
}

.converter-setting-heading i {
    color: var(--primary-color);
}

.converter-setting-copy {
    margin-top: -0.65rem;
    color: var(--light-text);
    font-size: 0.76rem;
}

.quality-control {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    padding: 0.9rem;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.quality-control > span {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.82rem;
}

.quality-control output {
    color: var(--primary-hover);
    font-family: var(--font-mono);
    font-weight: 800;
}

.quality-control input[type="range"] {
    width: 100%;
    height: 6px;
    padding: 0;
    accent-color: var(--primary-color);
    box-shadow: none;
}

.quality-control small {
    color: var(--light-text);
    font-size: 0.7rem;
}

.converter-summary-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.72rem 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.76rem;
}

.converter-summary-row span {
    color: var(--light-text);
}

.converter-summary-row strong {
    color: var(--text-color);
    text-align: right;
}

.converter-action-button,
.converter-download-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 44px;
    color: #ffffff;
    background: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius);
    font-size: 0.86rem;
    font-weight: 800;
    text-decoration: none;
    transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.converter-action-button:hover:not(:disabled),
.converter-download-button:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 5px 16px rgba(239, 68, 68, 0.22);
}

.converter-action-button:disabled {
    cursor: not-allowed;
    opacity: 0.45;
}

.converter-result {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.25rem;
    padding: 0.85rem;
    color: #166534;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--border-radius);
}

.converter-result[hidden] {
    display: none;
}

.converter-result-icon {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    color: #ffffff;
    background: #22c55e;
    border-radius: 9px;
}

.converter-result > div:nth-child(2) {
    display: flex;
    min-width: 0;
    flex-direction: column;
}

.converter-result strong {
    font-size: 0.82rem;
}

.converter-result span {
    color: #15803d;
    font-size: 0.72rem;
}

.converter-download-button {
    grid-column: 1 / -1;
    background: #16a34a;
    border-color: #16a34a;
}

.converter-download-button:hover {
    background: #15803d;
    border-color: #15803d;
    box-shadow: 0 5px 16px rgba(22, 163, 74, 0.2);
}

.ico-size-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.55rem;
}

.ico-size-grid label {
    cursor: pointer;
}

.ico-size-grid input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.ico-size-grid span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0.45rem;
    color: var(--light-text);
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 9px;
    font-family: var(--font-mono);
    font-size: 0.73rem;
    font-weight: 700;
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.ico-size-grid input:checked + span {
    color: var(--primary-hover);
    background: var(--primary-soft);
    border-color: rgba(239, 68, 68, 0.4);
}

.ico-size-grid input:focus-visible + span {
    outline: 3px solid rgba(239, 68, 68, 0.25);
    outline-offset: 2px;
}

.converter-error {
    color: #b91c1c;
    font-size: 0.75rem;
}

.image-toast {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 200;
    max-width: min(360px, calc(100vw - 2.5rem));
    padding: 0.75rem 1rem;
    color: #ffffff;
    background: #0f172a;
    border-radius: var(--border-radius);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.28);
    font-size: 0.84rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.image-toast.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.noscript-message {
    margin-top: 1rem;
    padding: 0.8rem 1rem;
    color: #991b1b;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--border-radius);
}

/* ========== Responsive layout ========== */
@media (max-width: 980px) {
    .picker-layout {
        grid-template-columns: 1fr;
    }

    .image-workspace {
        border-right: 0;
        border-bottom: 1px solid var(--border-color);
    }

    .canvas-frame {
        min-height: 390px;
    }

    .palette-list {
        grid-template-columns: repeat(8, minmax(34px, 1fr));
        max-width: 460px;
    }

    .converter-layout {
        grid-template-columns: 1fr;
    }

    .converter-settings {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .picker-toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .upload-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .upload-hint {
        justify-content: center;
    }

    .image-workspace,
    .color-panel {
        padding: 0.9rem;
    }

    .canvas-frame {
        min-height: 260px;
    }

    .image-meta {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.25rem;
    }

    .palette-list {
        grid-template-columns: repeat(8, 1fr);
    }

    .converter-card {
        padding: 1rem;
    }

    .converter-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.75rem;
    }

    .converter-dropzone {
        min-height: 250px;
    }

    .converter-file-meta {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.2rem;
    }
}

@media (max-width: 480px) {
    .upload-actions {
        grid-template-columns: 1fr;
    }

    .selected-swatch {
        width: 62px;
        height: 62px;
    }

    .color-value-row {
        grid-template-columns: 40px minmax(0, 1fr) 16px;
    }

    .palette-list {
        grid-template-columns: repeat(4, 1fr);
    }

    .pixel-loupe {
        display: none !important;
    }

    .ico-size-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (prefers-reduced-motion: reduce) {
    .image-primary-button,
    .image-secondary-button,
    .color-value-row,
    .palette-swatch,
    .recent-swatch,
    .image-toast,
    .converter-dropzone,
    .converter-action-button,
    .converter-download-button {
        transition: none;
    }
}