/**
 * Shared Tool Styles — Instagram Resize Tools
 * Extends /social-media-tools/assets/style.css (global design system).
 * Used by: Square Maker, Portrait Resizer, Landscape Resizer, Story Resizer.
 */

/* ──── Image Info Bar ──────────────────────────────────────────── */
.image-info-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background-color: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    margin-bottom: 20px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.image-info-bar .info-sep {
    opacity: 0.4;
}

.image-info-bar .info-highlight {
    color: var(--primary-color);
    font-weight: 700;
}

/* ──── Canvas Controls Bar ─────────────────────────────────────── */
.canvas-controls-bar {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.canvas-controls-bar .btn-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
}

/* ──── Canvas Help Tooltip ─────────────────────────────────────── */
.canvas-help-tooltip {
    position: absolute;
    bottom: 12px;
    background-color: rgba(15, 45, 89, 0.75);
    color: #ffffff;
    font-size: 11px;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 20px;
    pointer-events: none;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    transition: opacity 0.3s;
}

/* ──── Background Sub-Controls ─────────────────────────────────── */
.bg-sub-control {
    margin-top: 4px;
    padding: 12px;
    background-color: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    animation: slideDownIn 0.2s ease-out;
}

@keyframes slideDownIn {
    0% { opacity: 0; transform: translateY(-5px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* ──── File Size Estimate ──────────────────────────────────────── */
.file-size-estimate {
    font-size: 13.5px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-weight: 500;
}

.file-size-estimate strong {
    color: var(--primary-color);
}

/* ──── Comparison Slider ───────────────────────────────────────── */
.comparison-outer-frame {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.slider-comparison-container {
    width: 100%;
    max-width: 480px;
    aspect-ratio: 1;
    position: relative;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
    background-color: #f1f3f4;
    box-shadow: var(--shadow-soft);
    user-select: none;
}

.comparison-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.before-layer {
    background: repeating-conic-gradient(#e2e8f0 0% 25%, transparent 0% 50%) 50% / 16px 16px;
    background-color: #ffffff;
    z-index: 1;
}

.after-layer {
    z-index: 2;
}

.comparison-layer canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.comparison-divider {
    position: absolute;
    top: 0;
    width: 4px;
    height: 100%;
    background-color: #ffffff;
    cursor: ew-resize;
    transform: translateX(-50%);
    z-index: 3;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
}

.comparison-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 36px;
    height: 36px;
    background-color: var(--primary-color);
    border: 3px solid #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 14px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.handle-arrows {
    pointer-events: none;
}

.comparison-hint {
    text-align: center;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 8px;
}

/* ──── Safe Area Overlay Guide ─────────────────────────────────── */
.safe-area-overlay {
    position: absolute;
    border: 2px dashed rgba(37, 99, 235, 0.3);
    border-radius: 4px;
    pointer-events: none;
    z-index: 5;
}

/* ──── Processing spinner ──────────────────────────────────────── */
@keyframes spinRing {
    0%   { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.spin-ring {
    animation: spinRing 0.9s linear infinite;
    transform-origin: center;
}

/* ──── Preview card image aspect matching ──────────────────────── */
.slices-grid .slice-thumbnail-container {
    aspect-ratio: auto;
}

.slices-grid .slice-thumbnail-container canvas {
    width: 100%;
    height: auto;
    max-height: 280px;
    object-fit: contain;
}

/* ──── Instagram Compatibility Badge ───────────────────────────── */
.instagram-compat-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #e8f5e9 0%, #f1f8e9 100%);
    border: 1px solid #c8e6c9;
    border-radius: var(--border-radius-sm);
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    color: #2e7d32;
    margin-bottom: 8px;
}


/* ──── Redesigned Premium Settings Card & Layout ────────────────── */

.settings-card {
    background-color: var(--card-bg) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--border-radius-lg) !important; /* Premium rounded corners (16px) */
    padding: 24px !important;
    box-shadow: var(--shadow-medium) !important; /* Soft shadow */
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.settings-title {
    font-size: 18px !important;
    font-weight: 700 !important;
    color: var(--text-primary);
    margin: 0 !important;
    padding-bottom: 12px !important;
    border-bottom: 2px solid var(--border-color) !important;
}

.settings-section {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.settings-section:last-of-type {
    border-bottom: none;
    padding-bottom: 0;
}

.section-title {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Form inputs & dropdowns styling */
.settings-card .form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 0;
}

.settings-card .form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.settings-card .form-select,
.settings-card .form-input {
    width: 100% !important;
    height: 42px !important; /* Consistent height */
    padding: 8px 14px !important;
    border-radius: var(--border-radius-sm) !important;
    border: 1px solid var(--border-color) !important;
    background-color: #fafbfc !important;
    color: var(--text-primary) !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s !important;
    outline: none !important;
}

.settings-card .form-select:focus,
.settings-card .form-input:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 3px rgba(30, 92, 203, 0.1) !important;
    background-color: #ffffff !important;
}

/* Premium Checkbox Alignments */
.options-switches-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: #f8fafc;
    transition: background-color 0.2s, border-color 0.2s;
    cursor: pointer;
    min-height: 44px; /* Touch target minimum */
}

.checkbox-group:hover {
    background-color: #f1f5f9;
    border-color: var(--primary-color);
}

.checkbox-group input[type="checkbox"] {
    width: 18px !important;
    height: 18px !important;
    accent-color: var(--primary-color) !important;
    cursor: pointer !important;
    flex-shrink: 0;
    margin: 0 !important;
}

.checkbox-group label {
    font-size: 13.5px !important;
    font-weight: 500 !important;
    color: var(--text-primary) !important;
    cursor: pointer !important;
    user-select: none !important;
    margin-bottom: 0 !important;
}

/* Integrated Color Picker Group */
.color-picker-input-group {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: #fafbfc;
    height: 42px;
    width: 100%;
    padding: 2px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.color-picker-input-group:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 92, 203, 0.1);
    background-color: #ffffff;
}

.color-picker-preview-wrapper {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    margin-left: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.color-picker-preview-wrapper input[type="color"] {
    border: none !important;
    width: 50px !important;
    height: 50px !important;
    padding: 0 !important;
    margin: 0 !important;
    cursor: pointer !important;
    background: none !important;
}

.color-picker-input-group .color-hex-input {
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    font-family: monospace;
    font-size: 14px;
    height: 100% !important;
    padding-left: 8px !important;
    margin-bottom: 0 !important;
}

/* ──── Advanced Panel Customization ──── */
.advanced-section {
    border-bottom: none;
    padding-bottom: 0;
    margin-top: 4px;
}

.settings-card .advanced-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background-color: #f8fafc;
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    outline: none;
}

.settings-card .advanced-toggle:hover {
    background-color: #f1f5f9;
    border-color: var(--primary-color);
}

.settings-card .advanced-toggle.expanded {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    border-bottom: none;
    background-color: #f1f5f9;
}

.settings-card .advanced-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
    background-color: #fafbfc;
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 var(--border-radius-sm) var(--border-radius-sm);
    padding: 0 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.settings-card .advanced-content.expanded {
    max-height: 1000px;
    padding: 16px;
    transition: max-height 0.3s ease-in, padding 0.3s ease-in;
}

/* ──── Action Buttons and Flat Layout override ──── */
.action-buttons-container {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    width: 100%;
}

.action-buttons-container button {
    height: 48px !important; /* Touch-friendly size */
    font-size: 14px !important;
    font-weight: 600 !important;
    border-radius: var(--border-radius-sm) !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

/* Flat Grid Layout mapping for Desktop & Tablet (> 768px) */
@media (min-width: 769px) {
    .workspace-layout {
        display: grid !important;
        grid-template-columns: 1fr 360px !important;
        gap: 28px !important;
        align-items: start !important;
    }
    
    #previewCard {
        grid-column: 1 !important;
        grid-row: 1 !important;
    }
    
    #actionButtonsContainer {
        grid-column: 1 !important;
        grid-row: 2 !important;
    }
    
    #comparisonSection {
        grid-column: 1 !important;
        grid-row: 3 !important;
    }
    
    #slicesPreviewSection {
        grid-column: 1 !important;
        grid-row: 4 !important;
    }
    
    #downloadSection {
        grid-column: 1 !important;
        grid-row: 5 !important;
    }
    
    .settings-card {
        grid-column: 2 !important;
        grid-row: 1 / span 5 !important;
    }
}

/* Responsive flow mapping for Mobile (<= 768px) */
@media (max-width: 768px) {
    .workspace-layout {
        display: flex !important;
        flex-direction: column !important;
        gap: 20px !important;
    }
    
    #previewCard,
    .settings-card,
    #actionButtonsContainer,
    #comparisonSection,
    #slicesPreviewSection,
    #downloadSection {
        grid-column: auto !important;
        grid-row: auto !important;
        width: 100% !important;
    }
    
    /* Specific mobile button spacing as requested: 16-20px above and below, and stacked buttons */
    #actionButtonsContainer {
        margin: 18px 0 !important;
        display: flex !important;
        flex-direction: column !important;
        gap: 12px !important;
    }
    
    #actionButtonsContainer button {
        width: 100% !important;
    }
}

/* ──── FINAL UI/UX POLISH PASS ──── */

/* Generic range slider styling inside settings card */
.settings-card input[type="range"] {
    -webkit-appearance: none !important;
    appearance: none !important;
    width: 100% !important;
    height: 6px !important;
    background: #e2eaf4 !important;
    border-radius: 3px !important;
    outline: none !important;
    border: none !important;
    padding: 0 !important;
}

/* Chrome/Safari webkit slider thumb */
.settings-card input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none !important;
    appearance: none !important;
    width: 16px !important;
    height: 16px !important;
    border-radius: 50% !important;
    background: var(--primary-color) !important;
    border: 2.5px solid #ffffff !important;
    box-shadow: 0 2px 6px rgba(30, 92, 203, 0.3) !important;
    cursor: pointer !important;
    transition: transform 0.15s cubic-bezier(0.175, 0.885, 0.32, 1.275), background-color 0.2s !important;
}

.settings-card input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.22) !important;
    background-color: var(--primary-hover) !important;
}

/* Firefox moz range thumb */
.settings-card input[type="range"]::-moz-range-thumb {
    width: 16px !important;
    height: 16px !important;
    border-radius: 50% !important;
    background: var(--primary-color) !important;
    border: 2.5px solid #ffffff !important;
    box-shadow: 0 2px 6px rgba(30, 92, 203, 0.3) !important;
    cursor: pointer !important;
    transition: transform 0.15s cubic-bezier(0.175, 0.885, 0.32, 1.275), background-color 0.2s !important;
}

.settings-card input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.22) !important;
    background-color: var(--primary-hover) !important;
}

/* Value badges matching style */
.slider-val-badge {
    background-color: rgba(30, 92, 203, 0.08) !important;
    color: var(--primary-color) !important;
    font-weight: 700 !important;
    font-size: 12px !important;
    padding: 4px 8px !important;
    border-radius: 12px !important;
    min-width: 46px !important;
    height: auto !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
}

/* Accessible, clear focus outlines */
button:focus-visible,
a:focus-visible,
select:focus-visible,
input:focus-visible,
.checkbox-group:focus-within {
    outline: 2px solid var(--primary-color) !important;
    outline-offset: 2px !important;
    box-shadow: none !important;
}

/* Generic disabled styles for buttons */
.btn-primary:disabled,
.btn-secondary:disabled,
.btn-danger:disabled,
.btn-download:disabled,
.action-buttons-container button:disabled {
    background-color: #e2e8f0 !important;
    color: #94a3b8 !important;
    border-color: #e2e8f0 !important;
    box-shadow: none !important;
    cursor: not-allowed !important;
    opacity: 0.7 !important;
    transform: none !important;
}

/* Hover transitions on buttons */
.btn-primary, .btn-secondary, .btn-danger, .btn-download, .btn-link {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.btn-primary:active, .btn-secondary:active, .btn-danger:active {
    transform: scale(0.97) !important;
}

/* Checkbox group alignments & wrapping */
.checkbox-group {
    line-height: 1.4 !important;
    flex-wrap: wrap !important;
    gap: 10px !important;
}

/* Canvas control bar spacing */
.canvas-controls-bar {
    gap: 8px 14px !important;
}

/* Mobile responsive padding constraints for very narrow viewports */
@media (max-width: 480px) {
    .settings-card {
        padding: 16px !important;
    }
}