/* ==========================================================================
   Pintado Canvas Art Tools Stylesheet
   Studio-Grade UI • Touch Targets >= 44px • Accessible Controls • Print Media
   ========================================================================== */

.pintado-tool-container {
    background-color: var(--pintado-surface);
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: clamp(1.25rem, 3vw, 2.5rem);
    margin: 2rem auto 4rem auto;
    max-width: 1120px;
    width: 100%;
    box-sizing: border-box;
    position: relative;
}

/* Centered Responsive Tool Header */
.pintado-tool-header {
    max-width: 880px;
    margin: 0 auto 3rem auto;
    text-align: center;
    width: 100%;
    box-sizing: border-box;
}

.pintado-tool-header .pintado-subheading {
    display: inline-block;
    margin-bottom: 0.5rem;
    font-size: 0.825rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--pintado-primary);
}

.pintado-tool-header h1 {
    font-size: clamp(2rem, 3.5vw, 3.25rem);
    line-height: 1.2;
    margin-top: 0.4rem;
    margin-bottom: 1.25rem;
}

.pintado-tool-header p {
    font-size: clamp(1.05rem, 1.2vw, 1.15rem);
    line-height: 1.75;
    color: var(--pintado-muted);
    margin: 0 auto;
    max-width: 800px;
}

/* Centered Educational Content Section */
.pintado-tool-content-section {
    max-width: 880px;
    margin: 4rem auto;
    width: 100%;
    box-sizing: border-box;
}


/* Privacy Pill Badge */
.pintado-privacy-pill {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--pintado-sage-light);
    color: var(--pintado-sage);
    font-size: 0.825rem;
    font-weight: 600;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-full);
    margin-bottom: 1.75rem;
    width: fit-content;
}

/* Tab Navigation */
.pintado-tool-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--pintado-border);
    margin-bottom: 2rem;
    padding-bottom: 0.25rem;
    overflow-x: auto;
}

.pintado-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    color: var(--pintado-muted);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: -0.35rem;
    white-space: nowrap;
}

.pintado-tab-btn:hover {
    color: var(--pintado-text);
}

.pintado-tab-btn--active {
    color: var(--pintado-primary);
    border-bottom-color: var(--pintado-primary);
}

/* Subheadings & Labels */
.pintado-subheading {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--pintado-text);
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: block;
}

.pintado-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--pintado-text);
}

/* Pigment Chips Bar */
.pintado-pigment-bar {
    background-color: var(--pintado-surface-warm);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    margin-bottom: 2rem;
}

.pintado-pigment-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.pintado-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.85rem;
    background-color: #FFFFFF;
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--pintado-text);
    cursor: pointer;
    transition: var(--transition);
    min-height: 38px;
}

.pintado-chip::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--chip-color);
    border: 1px solid rgba(0, 0, 0, 0.15);
}

.pintado-chip:hover {
    border-color: var(--pintado-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Tool 1: Mixer Layout Grid */
.pintado-mixer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 860px) {
    .pintado-mixer-grid {
        grid-template-columns: 1.2fr 1fr;
    }
}

.pintado-mixer-inputs {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.pintado-color-slot {
    background-color: var(--pintado-surface-warm);
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
}

.pintado-slot-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.pintado-slot-percent {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--pintado-primary);
    font-size: 0.95rem;
}

.pintado-slot-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.pintado-color-input {
    width: 48px;
    height: 48px;
    padding: 0;
    border: 2px solid var(--pintado-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: none;
}

.pintado-hex-input {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-sm);
    width: 110px;
    text-transform: uppercase;
}

.pintado-slider {
    flex: 1;
    min-width: 160px;
    height: 8px;
    accent-color: var(--pintado-primary);
    cursor: pointer;
}

/* Result Swatch Card */
.pintado-result-swatch-card {
    background-color: var(--pintado-surface);
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.pintado-swatch-display {
    height: 180px;
    width: 100%;
    position: relative;
    display: flex;
    align-items: flex-end;
    padding: 1rem;
    transition: background-color 0.15s ease;
}

.pintado-subtractive-badge {
    background-color: rgba(23, 22, 21, 0.75);
    color: #FFFFFF;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
}

.pintado-swatch-details {
    padding: 1.5rem;
}

.pintado-swatch-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--pintado-text);
    margin-bottom: 1rem;
}

.pintado-code-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--pintado-border);
    font-size: 0.9rem;
}

.pintado-code-row:last-child {
    border-bottom: none;
}

.pintado-code-row code {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--pintado-text);
}

.pintado-copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: transparent;
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-sm);
    padding: 0.25rem 0.6rem;
    font-size: 0.8rem;
    color: var(--pintado-text);
    cursor: pointer;
    transition: var(--transition);
}

.pintado-copy-btn:hover {
    background-color: var(--pintado-primary-light);
    border-color: var(--pintado-primary);
    color: var(--pintado-primary);
}

.pintado-science-note {
    background-color: var(--pintado-secondary-light);
    border-left: 3px solid var(--pintado-secondary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 1rem 1.25rem;
    margin-top: 1.5rem;
    font-size: 0.875rem;
}

/* Drag and Drop Zone */
.pintado-dropzone {
    border: 2px dashed var(--pintado-border);
    border-radius: var(--radius-lg);
    background-color: var(--pintado-surface-warm);
    padding: 3rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.pintado-dropzone:hover,
.pintado-dropzone--dragover {
    border-color: var(--pintado-primary);
    background-color: var(--pintado-primary-light);
}

.pintado-dropzone-icon {
    color: var(--pintado-primary);
    margin-bottom: 1rem;
    margin-left: auto;
    margin-right: auto;
}

.pintado-dropzone-prompt {
    font-size: 1.15rem;
    color: var(--pintado-text);
    margin-bottom: 0.35rem;
}

.pintado-dropzone-hint {
    font-size: 0.85rem;
    color: var(--pintado-muted);
}

.pintado-file-input {
    display: none;
}

/* Extractor Results Layout */
.pintado-preview-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

@media (min-width: 860px) {
    .pintado-preview-row {
        grid-template-columns: 1fr 1.2fr;
    }
}

.pintado-image-preview-wrapper {
    background-color: #000;
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    max-height: 450px;
}

.pintado-preview-canvas {
    max-height: 450px;
    width: auto;
    object-fit: contain;
}

.pintado-palette-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.pintado-palette-actions {
    display: flex;
    gap: 0.5rem;
}

.pintado-swatches-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.85rem;
}

.pintado-extracted-swatch-card {
    background-color: var(--pintado-surface);
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
}

.pintado-extracted-color {
    height: 75px;
    width: 100%;
}

.pintado-extracted-info {
    padding: 0.65rem;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.pintado-extracted-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--pintado-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pintado-extracted-hex {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--pintado-text);
}

.pintado-extracted-meta {
    font-size: 0.7rem;
    color: var(--pintado-muted);
}

.pintado-swatch-copy-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.85);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #23211F;
    box-shadow: var(--shadow-sm);
}

.pintado-swatch-copy-btn:hover {
    background-color: #FFFFFF;
    color: var(--pintado-primary);
}

/* Tool 2 & 3: Controls Panel & Canvas Viewports */
.pintado-tool-workspace {
    margin-top: 2rem;
}

.pintado-controls-panel {
    background-color: var(--pintado-surface-warm);
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.pintado-control-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    align-items: center;
}

.pintado-control-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.pintado-control-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--pintado-text);
}

.pintado-select {
    padding: 0.65rem 0.85rem;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-sm);
    background-color: #FFFFFF;
}

.pintado-color-input-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pintado-color-input-wrapper span {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
}

.pintado-toggles-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.pintado-toggle-label {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--pintado-text);
    cursor: pointer;
}

.pintado-toggle-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--pintado-primary);
    cursor: pointer;
}

.pintado-control-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--pintado-border);
}

/* Canvas Stage */
.pintado-canvas-stage {
    background-color: #171615;
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    min-height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.pintado-canvas-wrapper {
    max-width: 100%;
    display: flex;
    justify-content: center;
}

.pintado-art-canvas {
    max-width: 100%;
    max-height: 75vh;
    height: auto;
    object-fit: contain;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

/* Loading Overlay */
.pintado-loading-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(23, 22, 21, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: #FFFFFF;
    font-weight: 600;
    font-size: 1rem;
    z-index: 10;
}

.pintado-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--pintado-primary);
    border-radius: 50%;
    animation: pintadoSpin 0.7s linear infinite;
}

@keyframes pintadoSpin {
    to { transform: rotate(360deg); }
}

/* Toast Message */
.pintado-toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background-color: var(--pintado-text);
    color: #FFFFFF;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    z-index: 99999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.pintado-toast--visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Print Styles */
@media print {
    body * {
        visibility: hidden;
    }
    .pintado-art-canvas,
    .pintado-art-canvas * {
        visibility: visible;
    }
    .pintado-canvas-stage {
        background: transparent !important;
        position: absolute;
        left: 0;
        top: 0;
        width: 100vw;
        height: 100vh;
        padding: 0;
    }
    .pintado-art-canvas {
        max-width: 100% !important;
        max-height: 100% !important;
        box-shadow: none !important;
    }
}

/* ==========================================================================
   Tool 4: Value Study & Notan Converter Styles
   ========================================================================== */
.value-stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.value-stat-card {
    background-color: var(--pintado-surface-warm);
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
}

.value-stat-num {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-serif);
    color: var(--pintado-text);
    display: block;
}

.value-stat-label {
    font-size: 0.8rem;
    color: var(--pintado-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   Tool 5: Golden Ratio & Composition Overlay Styles
   ========================================================================== */
.comp-controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.comp-btn-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ==========================================================================
   Tool 6: Canvas Aspect Ratio Scaler Styles
   ========================================================================== */
.ratio-calc-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 900px) {
    .ratio-calc-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.ratio-stats-box {
    background-color: var(--pintado-surface-warm);
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.ratio-stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 0.5rem;
    border-bottom: 1px dashed var(--pintado-border);
}

.ratio-badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
}

/* ==========================================================================
   Tool 7: Artist Color Wheel & Harmony Finder Styles
   ========================================================================== */
.wheel-workspace {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: center;
}

@media (min-width: 850px) {
    .wheel-workspace {
        grid-template-columns: 360px 1fr;
    }
}

.wheel-canvas-container {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    user-select: none;
}

#wheel-canvas {
    cursor: pointer;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    max-width: 100%;
    height: auto;
}

.pintado-harmony-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: var(--pintado-surface-warm);
    border: 1px solid var(--pintado-border);
    border-radius: var(--radius-md);
    padding: 0.85rem 1.25rem;
    margin-bottom: 0.75rem;
}

.pintado-harmony-color {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    border: 1px solid var(--pintado-border);
    flex-shrink: 0;
}

.pintado-harmony-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}