/* ============================================
   GIF Cropper - Tool Styles
   Prefix: gc-
   Load order: custom_styles.css FIRST, then this file
   ============================================ */

/* CSS Variables - Light Mode (Default) */
:root {
    --gc-transition: 0.25s;

    /* Primary = site blue #3399cc */
    --gc-primary:        #3399cc;
    --gc-primary-light:  rgba(51, 153, 204, 0.12);
    --gc-primary-dark:   #2277aa;

    /* Status */
    --gc-success:        #339966;
    --gc-success-light:  rgba(51, 153, 102, 0.12);
    --gc-danger:         #e64e4e;
    --gc-danger-light:   rgba(230, 78, 78, 0.10);

    /* Backgrounds */
    --gc-bg:             #f8fafc;
    --gc-elevated:       #ffffff;
    --gc-secondary:      #f1f5f9;
    --gc-tertiary:       #e2e8f0;

    /* Text */
    --gc-text:           #1e293b;
    --gc-text-2:         #475569;
    --gc-text-muted:     #64748b;

    /* Borders */
    --gc-border:         #e2e8f0;

    /* Shadows */
    --gc-shadow-sm:      0 1px 3px rgba(0,0,0,0.08);
    --gc-shadow-md:      0 4px 6px -1px rgba(0,0,0,0.10);
    --gc-shadow-lg:      0 10px 15px -3px rgba(0,0,0,0.10);
    --gc-shadow-xl:      0 20px 25px -5px rgba(0,0,0,0.10);

    /* Radius */
    --gc-r-sm:   6px;
    --gc-r-md:   12px;
    --gc-r-lg:   16px;
    --gc-r-xl:   24px;
    --gc-r-full: 9999px;

    /* Checkerboard */
    --gc-check-a: #f0f0f0;
    --gc-check-b: #e0e0e0;

    /* Crop overlay */
    --gc-mask:          rgba(0,0,0,0.55);
    --gc-handle-bg:     #ffffff;
    --gc-handle-border: #3399cc;
    --gc-crosshair:     rgba(255,255,255,0.4);

    /* Input */
    --gc-input-bg:      #ffffff;
    --gc-input-border:  #e2e8f0;
}

/* Dark Mode */
[data-theme="dark"] {
    --gc-primary:        #5ab4e0;
    --gc-primary-light:  rgba(90, 180, 224, 0.15);
    --gc-primary-dark:   #3399cc;

    --gc-success:        #4ade80;
    --gc-success-light:  rgba(74, 222, 128, 0.15);
    --gc-danger:         #f87171;
    --gc-danger-light:   rgba(248, 113, 113, 0.13);

    --gc-bg:             #0f172a;
    --gc-elevated:       #1e293b;
    --gc-secondary:      #334155;
    --gc-tertiary:       #475569;

    --gc-text:           #f1f5f9;
    --gc-text-2:         #cbd5e1;
    --gc-text-muted:     #94a3b8;

    --gc-border:         #334155;

    --gc-shadow-sm:      0 1px 3px rgba(0,0,0,0.3);
    --gc-shadow-md:      0 4px 6px -1px rgba(0,0,0,0.4);
    --gc-shadow-lg:      0 10px 15px -3px rgba(0,0,0,0.4);
    --gc-shadow-xl:      0 20px 25px -5px rgba(0,0,0,0.5);

    --gc-check-a: #334155;
    --gc-check-b: #475569;

    --gc-handle-border: #5ab4e0;

    --gc-input-bg:     #334155;
    --gc-input-border: #475569;
}

/* ============================================
   LAYOUT
   ============================================ */

.tool-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
.tool-header {
    text-align: center;
    margin-bottom: 2rem;
}

.tool-title-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.tool-icon-wrapper {
    width: 60px;
    height: 60px;
    background: var(--gc-primary);
    border-radius: var(--gc-r-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    transition: background-color var(--gc-transition);
}

.tool-icon-wrapper svg,
.tool-icon-wrapper i {
    width: 26px;
    height: 26px;
}

.tool-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin: 0;
    color: var(--gc-primary);
    letter-spacing: -0.02em;
}

.tool-description {
    font-size: 1.05rem;
    color: var(--gc-text-2);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Main tool area */
.tool-main {
    background: var(--gc-elevated);
    border-radius: var(--gc-r-xl);
    box-shadow: var(--gc-shadow-xl);
    overflow: visible !important; /* never clip scrollbars or sticky panels */
    border: 1px solid var(--gc-border);
    margin-bottom: 2rem;
    transition: background-color var(--gc-transition), border-color var(--gc-transition);
}

/* ============================================
   UPLOAD SECTION
   ============================================ */

.upload-section {
    padding: 3rem;
}

.upload-area {
    border: 2px dashed var(--gc-border);
    border-radius: var(--gc-r-lg);
    padding: 4rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--gc-secondary);
    position: relative;
    overflow: hidden;
}

.upload-area::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gc-primary-light);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--gc-primary);
    transform: translateY(-2px);
    box-shadow: var(--gc-shadow-md);
}

.upload-area:hover::before,
.upload-area.drag-over::before {
    opacity: 1;
}

.upload-content {
    position: relative;
    z-index: 1;
}

.upload-icon {
    color: var(--gc-primary);
    margin-bottom: 1rem;
}

.upload-icon svg,
.upload-icon i {
    width: 56px;
    height: 56px;
    opacity: 0.85;
}

.upload-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gc-text);
    margin: 0 0 0.4rem;
}

.upload-subtitle {
    color: var(--gc-text-muted);
    font-size: 0.9rem;
    margin: 0 0 1rem;
}

.file-types {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.file-type-badge {
    padding: 0.2rem 0.7rem;
    background: var(--gc-primary-light);
    color: var(--gc-primary);
    border-radius: var(--gc-r-full);
    font-size: 0.78rem;
    font-weight: 600;
}

.upload-hint {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--gc-text-muted);
    font-size: 0.78rem;
}

/* ============================================
   EDITOR SECTION
   ============================================ */

.editor-section { padding: 0; }

/* File info bar */
.file-info-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 0.85rem 1.5rem;
    background: var(--gc-secondary);
    border-bottom: 1px solid var(--gc-border);
    transition: background-color var(--gc-transition), border-color var(--gc-transition);
    border-radius: var(--gc-r-xl) var(--gc-r-xl) 0 0;
}

.file-info-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    color: var(--gc-text-2);
}

.file-info-item svg,
.file-info-item i {
    color: var(--gc-primary);
    width: 16px;
    height: 16px;
}

/* Editor grid */
.editor-grid {
    display: grid;
    grid-template-columns: 1fr 310px;
    gap: 0;
    min-height: 400px;
}

/* Panel headers */
.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid var(--gc-border);
    transition: border-color var(--gc-transition);
}

.panel-header h3 {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.9rem;
    font-weight: 600;
    margin: 0;
    color: var(--gc-text);
}

.panel-header h3 svg,
.panel-header h3 i {
    color: var(--gc-primary);
    width: 18px;
    height: 18px;
}

.crop-dimensions-badge {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--gc-primary);
    background: var(--gc-primary-light);
    padding: 0.2rem 0.65rem;
    border-radius: var(--gc-r-full);
}

/* Preview panel */
.preview-panel {
    border-right: 1px solid var(--gc-border);
    transition: border-color var(--gc-transition);
    display: flex;
    flex-direction: column;
}

/* Canvas container */
.canvas-container {
    position: relative;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        linear-gradient(45deg, var(--gc-check-a) 25%, transparent 25%),
        linear-gradient(-45deg, var(--gc-check-a) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--gc-check-a) 75%),
        linear-gradient(-45deg, transparent 75%, var(--gc-check-a) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    background-color: var(--gc-check-b);
    overflow: hidden; /* clip the crop-mask box-shadow to this container only */
    min-height: 350px;
    padding: 1rem;
    user-select: none;
    -webkit-user-select: none;
}

.canvas-container img {
    max-width: 100%;
    max-height: 440px;
    display: block;
    pointer-events: none;
}

/* Crop overlay */
.crop-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 10;
}

/* Crop selection box */
.crop-selection {
    position: absolute;
    border: 2px solid #fff;
    box-shadow:
        0 0 0 9999px var(--gc-mask),
        inset 0 0 0 1px rgba(0,0,0,0.2);
    cursor: move;
    pointer-events: all;
    z-index: 11;
    min-width: 20px;
    min-height: 20px;
}

.crop-selection.circle-mode {
    border-radius: 50%;
}

/* Crop handles */
.crop-handle {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--gc-handle-bg);
    border: 2px solid var(--gc-handle-border);
    border-radius: 2px;
    z-index: 12;
    pointer-events: all;
}

.crop-handle.nw { top: -6px; left: -6px;  cursor: nw-resize; }
.crop-handle.ne { top: -6px; right: -6px; cursor: ne-resize; }
.crop-handle.sw { bottom: -6px; left: -6px;  cursor: sw-resize; }
.crop-handle.se { bottom: -6px; right: -6px; cursor: se-resize; }
.crop-handle.n  { top: -6px;    left: 50%; margin-left: -6px; cursor: n-resize; }
.crop-handle.s  { bottom: -6px; left: 50%; margin-left: -6px; cursor: s-resize; }
.crop-handle.e  { top: 50%; right: -6px;  margin-top: -6px; cursor: e-resize; }
.crop-handle.w  { top: 50%; left: -6px;   margin-top: -6px; cursor: w-resize; }

.crop-selection.circle-mode .crop-handle.n,
.crop-selection.circle-mode .crop-handle.s,
.crop-selection.circle-mode .crop-handle.e,
.crop-selection.circle-mode .crop-handle.w {
    display: none;
}

/* Rule of thirds crosshair */
.crop-selection::before {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    left: 33.33%;
    width: 1px;
    background: var(--gc-crosshair);
    box-shadow: calc(33.33% + 1px) 0 0 0 var(--gc-crosshair);
    pointer-events: none;
}

.crop-selection::after {
    content: '';
    position: absolute;
    left: 0; right: 0;
    top: 33.33%;
    height: 1px;
    background: var(--gc-crosshair);
    box-shadow: 0 calc(33.33% + 1px) 0 0 var(--gc-crosshair);
    pointer-events: none;
}

/* Canvas hint */
.canvas-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.45rem;
    font-size: 0.73rem;
    color: var(--gc-text-muted);
    background: var(--gc-secondary);
    border-top: 1px solid var(--gc-border);
    margin: 0;
    transition: background-color var(--gc-transition);
}

.canvas-hint svg,
.canvas-hint i {
    width: 13px;
    height: 13px;
}

/* ============================================
   CONTROLS PANEL
   ============================================ */

.controls-panel {
    overflow-y: auto;
    max-height: 600px;
    background: var(--gc-elevated);
    transition: background-color var(--gc-transition);
}

.control-section {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--gc-border);
    transition: border-color var(--gc-transition);
}

.section-label {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--gc-text-2);
    margin-bottom: 0.65rem;
}

.section-label svg,
.section-label i {
    color: var(--gc-primary);
    width: 15px;
    height: 15px;
}

/* Shape options */
.mode-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.mode-option input { display: none; }

.mode-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 0.8rem 0.5rem;
    border: 2px solid var(--gc-border);
    border-radius: var(--gc-r-md);
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--gc-elevated);
}

.mode-card:hover { border-color: var(--gc-primary); }

.mode-card svg,
.mode-card i {
    color: var(--gc-text-muted);
    transition: color 0.2s;
    width: 22px;
    height: 22px;
}

.mode-option input:checked + .mode-card {
    border-color: var(--gc-primary);
    background: var(--gc-primary-light);
}

.mode-option input:checked + .mode-card svg,
.mode-option input:checked + .mode-card i {
    color: var(--gc-primary);
}

.mode-name {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--gc-text);
}

/* Aspect ratio grid */
.aspect-ratio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.4rem;
}

.aspect-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    padding: 0.5rem;
    border: 1px solid var(--gc-border);
    border-radius: var(--gc-r-md);
    background: var(--gc-elevated);
    color: var(--gc-text);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.aspect-btn:hover {
    border-color: var(--gc-primary);
    color: var(--gc-primary);
}

.aspect-btn.active {
    background: var(--gc-primary);
    border-color: var(--gc-primary);
    color: #fff;
}

.aspect-btn.active svg,
.aspect-btn.active i { color: #fff; }

/* Dimension inputs */
.dimension-inputs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.4rem;
}

/* Override custom_styles checkbox on gc- scoped inputs */
.gc-dim-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    min-width: 0;
}

.gc-dim-input-group label {
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--gc-text-muted);
    text-transform: uppercase;
}

.gc-dim-input-group input[type="number"] {
    width: 100% !important;
    padding: 0.45rem !important;
    border: 1px solid var(--gc-input-border) !important;
    border-radius: var(--gc-r-sm) !important;
    background: var(--gc-input-bg) !important;
    color: var(--gc-text) !important;
    font-size: 0.82rem !important;
    text-align: center !important;
    font-weight: 500 !important;
    -moz-appearance: textfield !important;
    height: auto !important;
    box-shadow: none !important;
}

.gc-dim-input-group input[type="number"]::-webkit-inner-spin-button,
.gc-dim-input-group input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.gc-dim-input-group input[type="number"]:focus {
    outline: none !important;
    border-color: var(--gc-primary) !important;
    box-shadow: 0 0 0 3px var(--gc-primary-light) !important;
}

/* Quick actions */
.quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem;
}

.quick-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    padding: 0.5rem;
    border: 1px solid var(--gc-border);
    border-radius: var(--gc-r-md);
    background: var(--gc-elevated);
    color: var(--gc-text-2);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.quick-btn svg,
.quick-btn i { width: 14px; height: 14px; }

/* Output summary */
.output-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
    padding: 1rem 1.25rem;
    background: var(--gc-primary-light);
    transition: background-color var(--gc-transition);
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.summary-item svg,
.summary-item i {
    color: var(--gc-primary);
    width: 16px;
    height: 16px;
}

.summary-content {
    display: flex;
    flex-direction: column;
}

.summary-label {
    font-size: 0.7rem;
    color: var(--gc-text-muted);
}

.summary-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gc-text);
}

/* ============================================
   ACTION BAR
   ============================================ */

.action-bar {
    display: flex;
    justify-content: center;
    gap: 0.875rem;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--gc-border);
    background: var(--gc-secondary);
    transition: background-color var(--gc-transition), border-color var(--gc-transition);
    border-radius: 0 0 var(--gc-r-xl) var(--gc-r-xl);
}

/* Buttons */
.gc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.8rem 1.6rem;
    border-radius: var(--gc-r-full);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    border: none;
    font-family: inherit;
}

.gc-btn-primary {
    background: var(--gc-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(51,153,204,0.25);
}

.gc-btn-primary:hover {
    background: var(--gc-primary-dark);
    box-shadow: 0 6px 20px rgba(51,153,204,0.35);
    transform: translateY(-1px);
}

.gc-btn-secondary {
    background: var(--gc-elevated);
    color: var(--gc-text);
    border: 1px solid var(--gc-border) !important;
}

.gc-btn-secondary:hover {
    border-color: var(--gc-primary) !important;
    color: var(--gc-primary);
}

.gc-btn-download {
    background: var(--gc-success);
    color: #fff;
    box-shadow: 0 4px 14px rgba(51,153,102,0.25);
}

.gc-btn-download:hover {
    filter: brightness(1.08);
    box-shadow: 0 6px 20px rgba(51,153,102,0.35);
    transform: translateY(-1px);
}

.gc-btn-outline {
    background: transparent;
    color: var(--gc-primary);
    border: 2px solid var(--gc-primary) !important;
}

.gc-btn-outline:hover { background: var(--gc-primary-light); }

.gc-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ============================================
   PROCESSING OVERLAY - compress-gif pattern
   ============================================ */

.gc-processing-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9000;
}

.gc-processing-content {
    background: var(--gc-elevated);
    border-radius: var(--gc-r-xl);
    padding: 2rem 2.5rem;
    text-align: center;
    box-shadow: var(--gc-shadow-xl);
    min-width: 340px;
    max-width: 440px;
    width: 90%;
    border: 1px solid var(--gc-border);
}

/* Stage dots */
.gc-progress-stages {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 1.5rem;
}

.gc-stage-dot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    color: var(--gc-text-2);
    transition: color 0.3s;
}

.gc-stage-dot i,
.gc-stage-dot svg {
    width: 20px !important;
    height: 20px !important;
    padding: 6px;
    background: var(--gc-secondary);
    border-radius: 50%;
    transition: all 0.3s;
    box-sizing: content-box !important;
    display: block;
}

.gc-stage-dot span {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.gc-stage-dot.active i,
.gc-stage-dot.active svg { background: var(--gc-primary); color: #fff; }
.gc-stage-dot.active     { color: var(--gc-primary); }
.gc-stage-dot.done i,
.gc-stage-dot.done svg   { background: var(--gc-success); color: #fff; }
.gc-stage-dot.done       { color: var(--gc-success); }

.gc-stage-connector {
    width: 28px;
    height: 2px;
    background: var(--gc-border);
    margin: 0 0.25rem 1rem;
    flex-shrink: 0;
}

/* Progress bar */
.gc-progress-bar-container {
    width: 100%;
    background: var(--gc-secondary);
    border-radius: var(--gc-r-full);
    height: 8px;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.gc-progress-bar {
    height: 100%;
    background: var(--gc-primary);
    border-radius: var(--gc-r-full);
    width: 0%;
    transition: width 0.4s ease;
}

.gc-processing-status {
    color: var(--gc-text);
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0 0 0.25rem;
}

.gc-progress-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gc-primary);
    margin: 0;
}

/* ============================================
   RESULTS SECTION
   ============================================ */

.results-section {
    padding: 2rem;
}

.results-header {
    text-align: center;
    margin-bottom: 1.75rem;
}

.gc-success-icon {
    width: 56px;
    height: 56px;
    background: var(--gc-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin: 0 auto 0.875rem;
}

.gc-success-icon svg,
.gc-success-icon i { width: 28px; height: 28px; }

.results-header h2 {
    font-size: 1.4rem;
    color: var(--gc-text);
    margin: 0 0 0.4rem;
}

.results-header p {
    color: var(--gc-text-2);
    margin: 0;
    font-size: 0.9rem;
}

/* Comparison */
.results-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.75rem;
    flex-wrap: wrap;
}

.comparison-item {
    text-align: center;
    flex: 1;
    min-width: 180px;
    max-width: 320px;
}

.comparison-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gc-text-muted);
    margin-bottom: 0.5rem;
    padding: 0.18rem 0.65rem;
    background: var(--gc-secondary);
    border-radius: var(--gc-r-full);
}

.gc-result-label {
    background: var(--gc-success-light);
    color: var(--gc-success);
}

.comparison-preview {
    background:
        linear-gradient(45deg, var(--gc-check-a) 25%, transparent 25%),
        linear-gradient(-45deg, var(--gc-check-a) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--gc-check-a) 75%),
        linear-gradient(-45deg, transparent 75%, var(--gc-check-a) 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
    background-color: var(--gc-check-b);
    border-radius: var(--gc-r-md);
    padding: 0.875rem;
    margin-bottom: 0.5rem;
    border: 1px solid var(--gc-border);
    min-height: 110px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.comparison-preview img {
    max-width: 100%;
    max-height: 190px;
    display: block;
}

.comparison-stats {
    font-size: 0.82rem;
    color: var(--gc-text-muted);
}

.comparison-stats.highlight {
    color: var(--gc-success);
    font-weight: 600;
}

.comparison-arrow {
    color: var(--gc-text-muted);
    flex-shrink: 0;
}

.comparison-arrow svg,
.comparison-arrow i { width: 22px; height: 22px; }

/* Results info */
.results-info {
    background: var(--gc-secondary);
    border-radius: var(--gc-r-md);
    padding: 0.875rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--gc-border);
    transition: background-color var(--gc-transition);
}

.gc-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.45rem 0.6rem;
    font-size: 0.875rem;
}

.gc-info-row:not(:last-child) {
    border-bottom: 1px solid var(--gc-border);
}

.gc-info-row span:first-child { color: var(--gc-text-muted); }
.gc-info-row span:last-child  { font-weight: 600; color: var(--gc-text); }

/* Results actions */
.results-actions {
    display: flex;
    justify-content: center;
    gap: 0.875rem;
    flex-wrap: wrap;
}

/* ============================================
   ERROR MESSAGE
   ============================================ */

.gc-error {
    margin: 1.25rem;
    padding: 1rem 1.25rem;
    background: var(--gc-danger-light);
    border-radius: var(--gc-r-md);
    color: var(--gc-danger);
    transition: background-color var(--gc-transition);
}

.gc-error-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

.gc-error-content svg,
.gc-error-content i { flex-shrink: 0; width: 18px; height: 18px; }

.gc-error-contact {
    font-size: 0.82rem;
    margin: 0;
    color: var(--gc-text-2);
}

.gc-error-contact a {
    color: var(--gc-primary);
    text-decoration: underline;
}

/* ============================================
   RELATED TOOLS
   ============================================ */

.gc-related-tools {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    padding: 1rem 1.25rem;
    background: var(--gc-elevated);
    border-radius: var(--gc-r-lg);
    border: 1px solid var(--gc-border);
    transition: background-color var(--gc-transition), border-color var(--gc-transition);
}

.gc-related-label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--gc-text-muted);
    white-space: nowrap;
}

.gc-related-label svg,
.gc-related-label i { width: 15px; height: 15px; }

.gc-related-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.gc-related-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.7rem;
    background: var(--gc-secondary);
    color: var(--gc-text-2);
    border-radius: var(--gc-r-full);
    font-size: 0.78rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.gc-related-link:hover {
    background: var(--gc-primary-light);
    color: var(--gc-primary);
    border-color: var(--gc-primary);
}

.gc-related-link svg,
.gc-related-link i { width: 14px; height: 14px; }

/* ============================================
   INFO SECTIONS
   ============================================ */

.gc-info-sections {
    display: grid;
    gap: 1.5rem;
    margin-top: 1rem;
}

.gc-info-card {
    background: var(--gc-elevated);
    border-radius: var(--gc-r-lg);
    padding: 1.75rem;
    border: 1px solid var(--gc-border);
    transition: background-color var(--gc-transition), border-color var(--gc-transition);
}

.gc-info-card h2 {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 1.2rem;
    color: var(--gc-text);
    margin: 0 0 1.25rem;
}

.gc-info-card h2 svg,
.gc-info-card h2 i {
    color: var(--gc-primary);
    flex-shrink: 0;
    width: 22px;
    height: 22px;
}

/* Steps list */
.gc-steps {
    margin: 0;
    padding: 0;
    counter-reset: gc-step;
    list-style: none;
}

.gc-steps li {
    position: relative;
    padding: 0.7rem 0 0.7rem 2.25rem;
    counter-increment: gc-step;
    color: var(--gc-text-2);
    line-height: 1.6;
    font-size: 0.9rem;
}

.gc-steps li::before {
    content: counter(gc-step);
    position: absolute;
    left: 0;
    top: 0.7rem;
    width: 22px;
    height: 22px;
    background: var(--gc-primary);
    color: #fff;
    border-radius: 50%;
    font-size: 0.7rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gc-steps li:not(:last-child) {
    border-bottom: 1px solid var(--gc-border);
}

.gc-steps a {
    color: var(--gc-primary);
    text-decoration: none;
    font-weight: 500;
}

.gc-steps a:hover { text-decoration: underline; }

/* Mode explanations */
.gc-explains {
    display: grid;
    gap: 0.875rem;
}

.gc-explain {
    padding: 0.875rem 1rem;
    background: var(--gc-secondary);
    border-radius: var(--gc-r-md);
    transition: background-color var(--gc-transition);
}

.gc-tag {
    display: inline-block;
    padding: 0.18rem 0.65rem;
    border-radius: var(--gc-r-full);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.gc-tag-blue {
    background: rgba(51,153,204,0.13);
    color: var(--gc-primary);
}

.gc-tag-green {
    background: rgba(51,153,102,0.13);
    color: var(--gc-success);
}

.gc-explain p {
    margin: 0;
    color: var(--gc-text-2);
    font-size: 0.875rem;
    line-height: 1.6;
}

.gc-explain a {
    color: var(--gc-primary);
    text-decoration: none;
    font-weight: 500;
}

.gc-explain a:hover { text-decoration: underline; }

/* FAQ */
.gc-faq-list {
    display: grid;
    gap: 0.6rem;
}

.faq-item {
    border: 1px solid var(--gc-border);
    border-radius: var(--gc-r-md);
    overflow: hidden;
    transition: border-color 0.2s ease;
}

.faq-item:hover { border-color: var(--gc-primary); }

.faq-question {
    width: 100%;
    padding: 0.9rem 1.1rem;
    background: var(--gc-secondary);
    border: none;
    text-align: left;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gc-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.875rem;
    transition: background-color 0.2s ease;
    font-family: inherit;
}

.faq-question:hover { background: var(--gc-elevated); }

.faq-question svg,
.faq-question i {
    color: var(--gc-primary);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    width: 18px;
    height: 18px;
}

.faq-item.open .faq-question {
    background: var(--gc-elevated);
    border-bottom: 1px solid var(--gc-border);
}

.faq-item.open .faq-question svg,
.faq-item.open .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding: 0.9rem 1.1rem;
    background: var(--gc-elevated);
}

.faq-item.open .faq-answer { display: block; }

.faq-answer p {
    margin: 0;
    color: var(--gc-text-2);
    line-height: 1.7;
    font-size: 0.875rem;
}

.faq-answer a {
    color: var(--gc-primary);
    text-decoration: none;
    font-weight: 500;
}

.faq-answer a:hover { text-decoration: underline; }

/* ============================================
   FEATURE 3 - Output Target Size
   ============================================ */

.gc-target-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: end;
    gap: 0.4rem;
    margin-top: 0.5rem;
}

.gc-link-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--gc-border);
    border-radius: var(--gc-r-sm);
    background: var(--gc-elevated);
    color: var(--gc-text-muted);
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
    padding: 0;
    margin-bottom: 0;
    align-self: end;
}

.gc-link-btn:hover,
.gc-link-btn.active {
    border-color: var(--gc-primary);
    color: var(--gc-primary);
    background: var(--gc-primary-light);
}

.gc-link-btn svg,
.gc-link-btn i { width: 14px !important; height: 14px !important; }

.gc-target-hint {
    font-size: 0.7rem;
    color: var(--gc-text-muted);
    margin: 0.35rem 0 0;
    line-height: 1.4;
}

/* ============================================
   FEATURE 6 - Live Animated Preview
   ============================================ */

.gc-live-preview-wrap {
    position: absolute;
    pointer-events: none;
    z-index: 20;
    border: 2px solid var(--gc-primary);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.4);
    display: none;
}

.gc-live-preview-wrap.visible {
    display: block;
}

.gc-live-preview-wrap img {
    display: block;
    position: absolute;
    top: 0; left: 0;
}

.gc-preview-label {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: rgba(0,0,0,0.6);
    color: #fff;
    font-size: 0.58rem;
    font-weight: 700;
    text-align: center;
    padding: 2px 0;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    z-index: 2;
}

.gc-preview-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.28rem 0.6rem;
    border: 1px solid var(--gc-border);
    border-radius: var(--gc-r-full);
    background: var(--gc-elevated);
    color: var(--gc-text-muted);
    font-size: 0.72rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.gc-preview-toggle:hover,
.gc-preview-toggle.active {
    border-color: var(--gc-primary);
    color: var(--gc-primary);
    background: var(--gc-primary-light);
}

.gc-preview-toggle svg,
.gc-preview-toggle i { width: 12px !important; height: 12px !important; }

/* ============================================
   FEATURE 7 - Copy / Paste Crop Coordinates
   ============================================ */

.gc-coord-actions {
    display: flex;
    gap: 0.4rem;
    margin-top: 0.5rem;
    flex-wrap: wrap;
}

.gc-coord-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.32rem 0.65rem;
    border: 1px solid var(--gc-border);
    border-radius: var(--gc-r-full);
    background: var(--gc-elevated);
    color: var(--gc-text-2);
    font-size: 0.74rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

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

.gc-coord-btn svg,
.gc-coord-btn i { width: 13px !important; height: 13px !important; }

.gc-coord-btn.gc-copied {
    border-color: var(--gc-success);
    color: var(--gc-success);
    background: var(--gc-success-light);
}


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

@media (max-width: 768px) {
    .tool-container { padding: 1rem; }
    .upload-section { padding: 1.5rem; }
    .upload-area { padding: 2.5rem 1.25rem; }

    .editor-grid { grid-template-columns: 1fr; }

    .preview-panel {
        border-right: none;
        border-bottom: 1px solid var(--gc-border);
    }

    .controls-panel { max-height: none; }
    .canvas-container { min-height: 240px; }

    .file-info-bar {
        gap: 0.5rem;
        padding: 0.65rem 1rem;
    }

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

    .action-bar { flex-wrap: wrap; }

    .gc-btn {
        padding: 0.7rem 1.1rem;
        font-size: 0.875rem;
    }

    .results-comparison { flex-direction: column; }
    .comparison-arrow { transform: rotate(90deg); }
    .results-actions { flex-direction: column; }
    .results-actions .gc-btn { width: 100%; }

    .gc-related-tools { flex-direction: column; align-items: flex-start; }
    .gc-info-card { padding: 1.25rem; }
    .gc-info-card h2 { font-size: 1.05rem; }
    .faq-question { font-size: 0.85rem; padding: 0.8rem 0.9rem; }
}

@media (max-width: 480px) {
    .tool-icon-wrapper { width: 48px; height: 48px; }
    .quick-actions { grid-template-columns: 1fr; }
    .gc-processing-card { padding: 2rem 1.5rem; }
}