/* ============================================
   ICO Analyzer - analyzer.css
   All classes prefixed with ica- to avoid
   conflicts with custom_styles.css
   ============================================ */

/* ── CSS Variables (Light mode default) ───── */
:root {
    --ica-primary:        #e64e4e;
    --ica-primary-light:  #fde8e8;
    --ica-primary-dark:   #c73a3a;
    --ica-success:        #339966;
    --ica-success-light:  #e0f2eb;
    --ica-warning:        #d97706;
    --ica-warning-light:  #fef3c7;
    --ica-danger:         #e64e4e;
    --ica-danger-light:   #fde8e8;

    --ica-bg:             #f8fafc;
    --ica-bg-elevated:    #ffffff;
    --ica-bg-secondary:   #f1f5f9;
    --ica-text:           #1e293b;
    --ica-text-secondary: #64748b;
    --ica-text-muted:     #94a3b8;
    --ica-border:         #e2e8f0;

    --ica-shadow-sm:  0 1px 3px rgba(0,0,0,.10);
    --ica-shadow-md:  0 4px 6px -1px rgba(0,0,0,.10);
    --ica-shadow-lg:  0 10px 15px -3px rgba(0,0,0,.10);
    --ica-shadow-xl:  0 20px 25px -5px rgba(0,0,0,.10);

    --ica-radius-sm:   6px;
    --ica-radius-md:   12px;
    --ica-radius-lg:   16px;
    --ica-radius-xl:   24px;
    --ica-radius-full: 9999px;

    --ica-checker-a:  #e8e8e8;
    --ica-checker-b:  #f5f5f5;
    --ica-input-bg:   #ffffff;
    --ica-transition: .25s;
}

/* ── Dark Mode overrides ─────────────────── */
[data-theme="dark"] {
    --ica-primary:        #f87171;
    --ica-primary-light:  rgba(248,113,113,.15);
    --ica-primary-dark:   #ef4444;
    --ica-success:        #4ade80;
    --ica-success-light:  rgba(74,222,128,.15);
    --ica-warning:        #fbbf24;
    --ica-warning-light:  rgba(251,191,36,.15);
    --ica-danger:         #f87171;
    --ica-danger-light:   rgba(248,113,113,.15);

    --ica-bg:             #0f172a;
    --ica-bg-elevated:    #1e293b;
    --ica-bg-secondary:   #334155;
    --ica-text:           #f1f5f9;
    --ica-text-secondary: #cbd5e1;
    --ica-text-muted:     #94a3b8;
    --ica-border:         #334155;

    --ica-shadow-sm:  0 1px 3px rgba(0,0,0,.30);
    --ica-shadow-md:  0 4px 6px -1px rgba(0,0,0,.40);
    --ica-shadow-lg:  0 10px 15px -3px rgba(0,0,0,.40);
    --ica-shadow-xl:  0 20px 25px -5px rgba(0,0,0,.50);

    --ica-checker-a:  #334155;
    --ica-checker-b:  #475569;
    --ica-input-bg:   #334155;
}

/* ── Tool container ──────────────────────── */
.tool-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
}

/* ── CRITICAL: tool-main must NOT clip overlays or scrollbars ── */
.tool-main {
    background: var(--ica-bg-elevated);
    border-radius: var(--ica-radius-xl);
    box-shadow: var(--ica-shadow-xl);
    overflow: visible !important;   /* override custom_styles.css overflow:hidden */
    border: 1px solid var(--ica-border);
    position: relative;
    transition: background-color var(--ica-transition),
                border-color var(--ica-transition),
                box-shadow var(--ica-transition);
}

/* ── Tool 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: 64px;
    height: 64px;
    background: var(--ica-primary);
    border-radius: var(--ica-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: var(--ica-shadow-lg);
    flex-shrink: 0;
}

.tool-icon-wrapper svg,
.tool-icon-wrapper i {
    width: 28px;
    height: 28px;
}

.tool-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin: 0;
    color: var(--ica-primary);
    letter-spacing: -.02em;
}

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

.tool-description a {
    color: var(--ica-primary);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px dotted var(--ica-primary);
    transition: border-bottom-style .2s;
}
.tool-description a:hover { border-bottom-style: solid; }

/* ── Upload Section ──────────────────────── */
.ica-upload-section {
    padding: 2rem;
    position: relative;
}

.ica-upload-area {
    border: 2px dashed var(--ica-border);
    border-radius: var(--ica-radius-lg);
    padding: 4rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all .3s ease;
    background: var(--ica-bg-secondary);
    position: relative;
    overflow: hidden;
}

.ica-upload-area::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--ica-primary-light);
    opacity: 0;
    transition: opacity .3s;
}

.ica-upload-area:hover,
.ica-upload-area.dragover {
    border-color: var(--ica-primary);
    background: var(--ica-bg);
    transform: translateY(-2px);
    box-shadow: var(--ica-shadow-md);
}
.ica-upload-area:hover::before,
.ica-upload-area.dragover::before { opacity: 1; }

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

.ica-upload-icon {
    color: var(--ica-primary);
    margin-bottom: 1.5rem;
    transition: transform .3s;
}
.ica-upload-area:hover .ica-upload-icon { transform: translateY(-5px); }

.ica-upload-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--ica-text);
    margin: 0 0 .5rem;
}
.ica-upload-subtitle {
    color: var(--ica-text-secondary);
    margin: 0 0 1rem;
    font-size: 1rem;
}
.ica-upload-hint {
    display: inline-block;
    background: var(--ica-bg);
    color: var(--ica-text-muted);
    padding: .5rem 1rem;
    border-radius: var(--ica-radius-full);
    font-size: .875rem;
}

/* ── Processing Overlay ──────────────────── */
/* Dark semi-transparent backdrop - does NOT whiteout the page */
.ica-processing-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9000;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

/* Centered card - white in light, dark in dark mode */
.ica-processing-card {
    background: var(--ica-bg-elevated);
    border-radius: var(--ica-radius-xl);
    padding: 2rem 2.5rem;
    text-align: center;
    box-shadow: 0 25px 60px rgba(0,0,0,0.35);
    min-width: 320px;
    max-width: 420px;
    width: 90%;
    border: 1px solid var(--ica-border);
}

/* Stage dots - same pattern as compress-gif */
.ica-progress-stages {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 1.75rem;
}

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

.ica-stage-icon {
    width: 20px;
    height: 20px;
    padding: 7px;
    background: var(--ica-bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    box-sizing: content-box;
}

.ica-stage-icon svg {
    width: 16px;
    height: 16px;
    display: block;
}

.ica-stage-dot span {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.ica-stage-dot.active .ica-stage-icon { background: var(--ica-primary); color: #fff; }
.ica-stage-dot.active                  { color: var(--ica-primary); }
.ica-stage-dot.done .ica-stage-icon   { background: var(--ica-success); color: #fff; }
.ica-stage-dot.done                    { color: var(--ica-success); }

.ica-stage-connector {
    width: 28px;
    height: 2px;
    background: var(--ica-border);
    margin: 0 0.25rem 1.1rem;
    flex-shrink: 0;
}

/* CSS-only spinner ring - no Lucide dependency */
.ica-css-spinner {
    width: 44px;
    height: 44px;
    border: 4px solid var(--ica-border);
    border-top-color: var(--ica-primary);
    border-radius: 50%;
    animation: ica-spin 0.8s linear infinite;
    margin: 0 auto 1.25rem;
}

@keyframes ica-spin {
    to { transform: rotate(360deg); }
}

/* Progress bar */
.ica-progress-bar-wrap {
    height: 6px;
    background: var(--ica-border);
    border-radius: var(--ica-radius-full);
    overflow: hidden;
    margin-bottom: 0.875rem;
}

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

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

.ica-progress-pct {
    font-size: 0.82rem;
    color: var(--ica-text-muted);
    margin: 0;
}

/* ── Results Section ─────────────────────── */
.ica-results-section { padding: 0; animation: ica-fadeIn .4s ease; }

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

/* ── Error Message ───────────────────────── */
.ica-error-message {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    margin: 2rem;
    background: var(--ica-danger-light);
    border: 1px solid rgba(230,78,78,.3);
    border-radius: var(--ica-radius-md);
    transition: background-color var(--ica-transition);
}
.ica-error-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--ica-danger);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}
.ica-error-content { display: flex; flex-direction: column; gap: .25rem; }
.ica-error-title   { font-weight: 600; color: var(--ica-danger); font-size: 1rem; }
.ica-error-text    { color: var(--ica-text-secondary); font-size: .95rem; }
.ica-error-contact { margin-top: .5rem; font-size: .9rem; color: var(--ica-text-muted); }
.ica-error-contact a { color: var(--ica-primary); text-decoration: none; font-weight: 500; }
.ica-error-contact a:hover { text-decoration: underline; }

/* ── File Info Bar ───────────────────────── */
.ica-file-info-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding: 1.25rem 2rem;
    background: var(--ica-bg-secondary);
    border-bottom: 1px solid var(--ica-border);
    border-radius: var(--ica-radius-xl) var(--ica-radius-xl) 0 0;
    transition: background-color var(--ica-transition), border-color var(--ica-transition);
}
.ica-file-info-item {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .9rem;
    color: var(--ica-text-secondary);
}
.ica-file-info-item svg,
.ica-file-info-item i { color: var(--ica-primary); flex-shrink: 0; }

/* ── Two-Column Grid ─────────────────────── */
.ica-analysis-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.ica-preview-panel,
.ica-analysis-panel {
    padding: 2rem;
    min-width: 0; /* prevent grid blowout */
}

.ica-preview-panel {
    background: var(--ica-bg-secondary);
    border-right: 1px solid var(--ica-border);
    transition: background-color var(--ica-transition), border-color var(--ica-transition);
}

/* ── Panel Header ────────────────────────── */
.ica-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}
.ica-panel-header h3 {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ica-text);
    margin: 0;
}
.ica-panel-header h3 svg,
.ica-panel-header h3 i { color: var(--ica-primary); }

/* ── Icon Preview ────────────────────────── */
.ica-ico-display {
    background: var(--ica-bg);
    border: 1px solid var(--ica-border);
    border-radius: var(--ica-radius-md);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    overflow: auto;
    transition: background-color var(--ica-transition), border-color var(--ica-transition);
}

.ica-ico-display img {
    max-width: 100%;
    max-height: 260px;
    border-radius: var(--ica-radius-md);
    box-shadow: var(--ica-shadow-md);
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

.ica-ico-display.checkerboard-bg {
    background-image:
        linear-gradient(45deg,  var(--ica-checker-a) 25%, transparent 25%),
        linear-gradient(-45deg, var(--ica-checker-a) 25%, transparent 25%),
        linear-gradient(45deg,  transparent 75%, var(--ica-checker-a) 75%),
        linear-gradient(-45deg, transparent 75%, var(--ica-checker-a) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    background-color: var(--ica-checker-b);
}

.ica-ico-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: var(--ica-text-muted);
    opacity: .6;
}

.ica-preview-info {
    text-align: center;
    margin-top: .875rem;
    font-size: .875rem;
    color: var(--ica-text-secondary);
}
.ica-preview-dimensions { font-weight: 600; color: var(--ica-text); }

/* ── Layer Selector ──────────────────────── */
.ica-layer-selector {
    display: flex;
    align-items: center;
    gap: .75rem;
    margin-top: 1rem;
    padding: .75rem 1rem;
    background: var(--ica-bg);
    border-radius: var(--ica-radius-md);
    border: 1px solid var(--ica-border);
}
.ica-layer-selector label {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .875rem;
    font-weight: 500;
    color: var(--ica-text-secondary);
    white-space: nowrap;
}
.ica-layer-selector label svg,
.ica-layer-selector label i { color: var(--ica-primary); }

.ica-layer-select {
    flex: 1;
    padding: .5rem .75rem;
    border: 1px solid var(--ica-border);
    border-radius: var(--ica-radius-sm);
    background: var(--ica-input-bg);
    font-size: .875rem;
    color: var(--ica-text);
    cursor: pointer;
    min-width: 0;
    transition: border-color .2s;
}
.ica-layer-select:focus {
    outline: none;
    border-color: var(--ica-primary);
    box-shadow: 0 0 0 3px rgba(230,78,78,.1);
}

/* ── BG Toggle ───────────────────────────── */
.ica-bg-toggle { display: flex; align-items: center; gap: .5rem; }
.ica-bg-toggle-label { font-size: .85rem; color: var(--ica-text-secondary); }

.ica-toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}
.ica-toggle-switch input { opacity: 0; width: 0; height: 0; }
.ica-toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--ica-border);
    transition: .3s;
    border-radius: var(--ica-radius-full);
}
.ica-toggle-slider::before {
    position: absolute;
    content: '';
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: var(--ica-bg-elevated);
    transition: .3s;
    border-radius: 50%;
    box-shadow: var(--ica-shadow-sm);
}
.ica-toggle-switch input:checked + .ica-toggle-slider { background: var(--ica-primary); }
.ica-toggle-switch input:checked + .ica-toggle-slider::before { transform: translateX(20px); }

/* ── Preview Controls ────────────────────── */
.ica-preview-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .75rem;
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--ica-border);
}

.ica-control-button {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .5rem .875rem;
    background: var(--ica-bg);
    border: 1px solid var(--ica-border);
    border-radius: var(--ica-radius-full);
    cursor: pointer;
    transition: all .2s;
    font-size: .85rem;
    font-weight: 500;
    color: var(--ica-text-secondary);
    text-decoration: none;
    white-space: nowrap;
}
.ica-control-button:hover {
    background: var(--ica-bg-elevated);
    border-color: var(--ica-primary);
    color: var(--ica-primary);
}

/* ── Download Bar ────────────────────────── */
.ica-layer-download-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .75rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--ica-border);
}
.ica-download-btn {
    background: var(--ica-primary-light);
    border-color: var(--ica-primary);
    color: var(--ica-primary);
}
.ica-download-btn:hover {
    background: var(--ica-primary);
    color: #fff;
}
.ica-download-zip {
    background: var(--ica-success-light);
    border-color: var(--ica-success);
    color: var(--ica-success);
}
.ica-download-zip:hover {
    background: var(--ica-success);
    color: #fff;
}

/* ── Report Button ───────────────────────── */
.ica-report-btn {
    display: inline-flex;
    align-items: center;
    gap: .375rem;
    padding: .4rem .75rem;
    background: var(--ica-bg);
    border: 1px solid var(--ica-border);
    border-radius: var(--ica-radius-full);
    color: var(--ica-text-muted);
    font-size: .8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all .2s;
}
.ica-report-btn:hover {
    background: var(--ica-bg-elevated);
    border-color: var(--ica-primary);
    color: var(--ica-primary);
}
@media (max-width: 480px) {
    .ica-report-btn span { display: none; }
    .ica-report-btn      { padding: .4rem .5rem; }
}

/* ── Quality Score Card ──────────────────── */
.ica-quality-score-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.25rem;
    border-radius: var(--ica-radius-md);
    border: 1px solid var(--ica-border);
    margin-bottom: 1.5rem;
    background: var(--ica-bg);
    transition: background-color var(--ica-transition), border-color var(--ica-transition);
}
.ica-score-ring {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 700;
    flex-shrink: 0;
    color: #fff;
}
.ica-score-high   .ica-score-ring { background: var(--ica-success); }
.ica-score-medium .ica-score-ring { background: var(--ica-warning); }
.ica-score-low    .ica-score-ring { background: var(--ica-danger); }
.ica-score-high   { border-color: var(--ica-success); }
.ica-score-medium { border-color: var(--ica-warning); }
.ica-score-low    { border-color: var(--ica-danger); }

.ica-score-details { display: flex; flex-direction: column; }
.ica-score-label   { font-weight: 700; font-size: 1.1rem; color: var(--ica-text); }
.ica-score-hint    { font-size: .875rem; color: var(--ica-text-muted); }

/* ── Stats Grid ──────────────────────────── */
.ica-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: .75rem;
    margin-bottom: 1.5rem;
    min-width: 0;
}
.ica-stat-card {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: 1rem;
    background: var(--ica-bg);
    border-radius: var(--ica-radius-md);
    border: 1px solid var(--ica-border);
    min-width: 0;
    transition: background-color var(--ica-transition), border-color var(--ica-transition);
}
.ica-stat-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--ica-radius-sm);
    background: var(--ica-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ica-primary);
    flex-shrink: 0;
}
.ica-stat-info  { display: flex; flex-direction: column; min-width: 0; }
.ica-stat-value { font-weight: 700; font-size: 1rem; color: var(--ica-text); white-space: nowrap; }
.ica-stat-label { font-size: .75rem; color: var(--ica-text-muted); }
.ica-alpha-yes .ica-stat-icon { background: var(--ica-success-light); color: var(--ica-success); }
.ica-alpha-no  .ica-stat-icon { background: var(--ica-danger-light);  color: var(--ica-danger); }
.ica-png-yes   .ica-stat-icon { background: #e0edfa; color: #3399cc; }

/* ── Accordion ───────────────────────────── */
.ica-accordion-section {
    border: 1px solid var(--ica-border);
    border-radius: var(--ica-radius-md);
    overflow: hidden;
    margin-bottom: .875rem;
}
.ica-accordion-trigger {
    width: 100%;
    padding: 1rem 1.25rem;
    background: var(--ica-bg);
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: .95rem;
    font-weight: 600;
    color: var(--ica-text);
    transition: background-color .2s;
}
.ica-accordion-trigger > span {
    display: flex;
    align-items: center;
    gap: .5rem;
}
.ica-accordion-trigger > span svg,
.ica-accordion-trigger > span i { color: var(--ica-primary); }
.ica-accordion-trigger:hover { background: var(--ica-bg-elevated); }

.ica-accordion-icon { color: var(--ica-text-muted); transition: transform .3s; }
.ica-accordion-section.open .ica-accordion-icon { transform: rotate(180deg); }

.ica-accordion-content { display: none; padding: 0 1.25rem 1.25rem; background: var(--ica-bg-elevated); }
.ica-accordion-section.open .ica-accordion-content { display: block; }

/* ── Layers Table ────────────────────────── */
.ica-layers-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .9rem;
}
.ica-layers-table th {
    background: var(--ica-bg-secondary);
    padding: .625rem .875rem;
    text-align: left;
    font-weight: 600;
    font-size: .8rem;
    color: var(--ica-text-muted);
    text-transform: uppercase;
    letter-spacing: .05em;
    border-bottom: 1px solid var(--ica-border);
}
.ica-layers-table td {
    padding: .75rem .875rem;
    border-bottom: 1px solid var(--ica-border);
    color: var(--ica-text-secondary);
}
.ica-layers-table tr:last-child td { border-bottom: none; }
.ica-layers-table tr:hover td { background: var(--ica-bg-secondary); }

.ica-size-badge {
    background: var(--ica-primary-light);
    color: var(--ica-primary);
    padding: .2rem .55rem;
    border-radius: var(--ica-radius-full);
    font-size: .82rem;
    font-weight: 600;
    white-space: nowrap;
}
.ica-format-badge {
    padding: .2rem .55rem;
    border-radius: var(--ica-radius-full);
    font-size: .82rem;
    font-weight: 600;
}
.ica-format-png { background: #e0edfa; color: #3399cc; }
.ica-format-bmp { background: var(--ica-bg-secondary); color: var(--ica-text-secondary); }

.ica-feature-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
}
.ica-status-yes { background: var(--ica-success-light); color: var(--ica-success); }
.ica-status-no  { background: var(--ica-danger-light);  color: var(--ica-danger); }

/* ── Size Coverage ───────────────────────── */
.ica-size-coverage-grid {
    display: grid;
    gap: .625rem;
    padding-top: .25rem;
}
.ica-size-coverage-item {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .75rem 1rem;
    border-radius: var(--ica-radius-md);
    border: 1px solid var(--ica-border);
    transition: background-color .2s;
}
.ica-covered { background: var(--ica-success-light); border-color: var(--ica-success); }
.ica-missing { background: var(--ica-bg);            border-color: var(--ica-border); opacity: .75; }
.ica-size-status svg,
.ica-size-status i {
    flex-shrink: 0;
}
.ica-covered .ica-size-status svg,
.ica-covered .ica-size-status i { color: var(--ica-success); }
.ica-missing .ica-size-status svg,
.ica-missing .ica-size-status i { color: var(--ica-text-muted); }

.ica-size-info  { display: flex; flex-direction: column; }
.ica-size-label { font-weight: 600; font-size: .9rem; color: var(--ica-text); }
.ica-size-desc  { font-size: .8rem; color: var(--ica-text-muted); }

/* ── Compatibility ───────────────────────── */
.ica-compatibility-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--ica-border);
}
.ica-compatibility-section h4 {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .95rem;
    font-weight: 600;
    color: var(--ica-text);
    margin: 0 0 1rem;
}
.ica-compatibility-section h4 svg,
.ica-compatibility-section h4 i { color: var(--ica-primary); }

.ica-compatibility-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: .5rem;
}
.ica-compat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .375rem;
    padding: .75rem .5rem;
    border-radius: var(--ica-radius-md);
    border: 1px solid var(--ica-border);
    text-align: center;
}
.ica-compat-yes {
    background: var(--ica-success-light);
    border-color: var(--ica-success);
}
.ica-compat-partial {
    background: var(--ica-warning-light);
    border-color: var(--ica-warning);
}
.ica-compat-yes .ica-compat-icon     { color: var(--ica-success); }
.ica-compat-partial .ica-compat-icon { color: var(--ica-warning); }
.ica-compat-text { font-size: .75rem; font-weight: 600; color: var(--ica-text-secondary); }

/* ── Recommendations ─────────────────────── */
.ica-recommendations-section {
    padding: 2rem;
    background: var(--ica-bg-secondary);
    border-top: 1px solid var(--ica-border);
    transition: background-color var(--ica-transition), border-color var(--ica-transition);
}
.ica-recommendations-list { display: grid; gap: .625rem; margin-bottom: 1.5rem; }

.ica-recommendation-item {
    display: flex;
    align-items: flex-start;
    gap: .875rem;
    padding: .875rem 1rem;
    border-radius: var(--ica-radius-md);
    border: 1px solid transparent;
    font-size: .9rem;
    color: var(--ica-text-secondary);
    line-height: 1.5;
}
.ica-recommendation-item a { color: var(--ica-primary); text-decoration: none; font-weight: 500; }
.ica-recommendation-item a:hover { text-decoration: underline; }

.ica-rec-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--ica-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ica-rec-warning {
    background: var(--ica-warning-light);
    border-color: var(--ica-warning);
}
.ica-rec-warning .ica-rec-icon { background: var(--ica-warning); color: #fff; }

.ica-rec-info {
    background: var(--ica-bg);
    border-color: var(--ica-border);
}
.ica-rec-info .ica-rec-icon { background: var(--ica-primary-light); color: var(--ica-primary); }

.ica-rec-success {
    background: var(--ica-success-light);
    border-color: var(--ica-success);
}
.ica-rec-success .ica-rec-icon { background: var(--ica-success); color: #fff; }

/* ── Recommended Tools Grid ──────────────── */
.ica-recommended-tools { margin-top: 1.5rem; }
.ica-recommended-tools h4 {
    font-size: .9rem;
    font-weight: 600;
    color: var(--ica-text-muted);
    text-transform: uppercase;
    letter-spacing: .06em;
    margin: 0 0 .875rem;
}
.ica-tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: .75rem;
}
.ica-tool-card-link {
    display: flex;
    align-items: center;
    gap: .875rem;
    padding: .875rem;
    background: var(--ica-bg-elevated);
    border: 1px solid var(--ica-border);
    border-radius: var(--ica-radius-md);
    text-decoration: none;
    transition: all .2s;
    min-width: 0;
}
.ica-tool-card-link:hover {
    border-color: var(--ica-primary);
    box-shadow: var(--ica-shadow-sm);
    transform: translateY(-1px);
}
.ica-tool-icon-small {
    width: 40px;
    height: 40px;
    border-radius: var(--ica-radius-sm);
    background: var(--ica-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}
.ica-tool-info { display: flex; flex-direction: column; min-width: 0; }
.ica-tool-name { font-weight: 600; font-size: .9rem; color: var(--ica-text); }
.ica-tool-desc { font-size: .8rem; color: var(--ica-text-muted); }

/* ── Action Bar ──────────────────────────── */
.ica-action-bar {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding: 2rem;
    border-top: 1px solid var(--ica-border);
    background: var(--ica-bg-elevated);
    transition: background-color var(--ica-transition), border-color var(--ica-transition);
}
.ica-btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .75rem 1.75rem;
    border-radius: var(--ica-radius-full);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all .2s;
    cursor: pointer;
    border: none;
}
.ica-btn-primary {
    background: var(--ica-primary);
    color: #fff;
}
.ica-btn-primary:hover {
    background: var(--ica-primary-dark);
    box-shadow: var(--ica-shadow-md);
    transform: translateY(-1px);
}

/* ── Related Tools ───────────────────────── */
.ica-related-tools {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .75rem;
    margin: 2rem 0 1rem;
    padding: 1rem 1.25rem;
    background: var(--ica-bg-secondary);
    border-radius: var(--ica-radius-md);
    border: 1px solid var(--ica-border);
    transition: background-color var(--ica-transition), border-color var(--ica-transition);
}
.ica-related-label {
    font-size: .875rem;
    font-weight: 600;
    color: var(--ica-text-muted);
    white-space: nowrap;
}
.ica-related-links {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}
.ica-related-link {
    display: inline-flex;
    align-items: center;
    gap: .375rem;
    padding: .375rem .875rem;
    background: var(--ica-bg-elevated);
    border: 1px solid var(--ica-border);
    border-radius: var(--ica-radius-full);
    text-decoration: none;
    font-size: .85rem;
    font-weight: 500;
    color: var(--ica-text-secondary);
    transition: all .2s;
    white-space: nowrap;
}
.ica-related-link svg,
.ica-related-link i { color: var(--ica-primary); flex-shrink: 0; }
.ica-related-link:hover {
    border-color: var(--ica-primary);
    color: var(--ica-primary);
    background: var(--ica-primary-light);
}

/* ── Info Sections ───────────────────────── */
.ica-info-sections {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}
.ica-info-card {
    background: var(--ica-bg-elevated);
    border-radius: var(--ica-radius-xl);
    padding: 2rem;
    border: 1px solid var(--ica-border);
    box-shadow: var(--ica-shadow-sm);
    transition: background-color var(--ica-transition), border-color var(--ica-transition), box-shadow var(--ica-transition);
}
.ica-info-card h2 {
    display: flex;
    align-items: center;
    gap: .625rem;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--ica-text);
    margin: 0 0 1.25rem;
}
.ica-info-card h2 svg,
.ica-info-card h2 i { color: var(--ica-primary); }

/* Steps list */
.ica-steps-list {
    list-style: none;
    margin: 0;
    padding: 0;
    counter-reset: ica-step;
    display: grid;
    gap: 1rem;
}
.ica-steps-list li {
    counter-increment: ica-step;
    position: relative;
    padding-left: 3rem;
    color: var(--ica-text-secondary);
    font-size: .95rem;
    line-height: 1.6;
}
.ica-steps-list li::before {
    content: counter(ica-step);
    position: absolute;
    left: 0;
    top: 0;
    width: 2rem;
    height: 2rem;
    background: var(--ica-primary);
    color: #fff;
    border-radius: var(--ica-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: .875rem;
    z-index: 1;
}
.ica-steps-list li:not(:last-child)::after {
    content: '';
    position: absolute;
    left: calc(1rem - 1px);
    top: 2rem;
    bottom: -1rem;
    width: 2px;
    background: var(--ica-primary-light);
}
.ica-steps-list li a {
    color: var(--ica-primary);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px dotted var(--ica-primary);
}
.ica-steps-list li a:hover { border-bottom-style: solid; }

/* Feature explanations */
.ica-feature-explanations { display: grid; gap: 1rem; }
.ica-feature-explain { display: flex; gap: 1rem; align-items: flex-start; }
.ica-feature-tag {
    flex-shrink: 0;
    padding: .35rem .85rem;
    border-radius: var(--ica-radius-full);
    font-size: .8rem;
    font-weight: 600;
    color: #fff;
}
.ica-tag-layers { background: #e64e4e; }
.ica-tag-format { background: #3399cc; }
.ica-tag-alpha  { background: #339966; }
.ica-feature-explain p {
    margin: 0;
    color: var(--ica-text-secondary);
    font-size: .95rem;
    line-height: 1.6;
}
.ica-feature-explain p a { color: var(--ica-primary); text-decoration: none; font-weight: 500; }
.ica-feature-explain p a:hover { text-decoration: underline; }

/* Use cases grid */
.ica-use-cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}
.ica-use-case {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--ica-bg);
    border-radius: var(--ica-radius-md);
    border: 1px solid var(--ica-border);
    transition: border-color .2s;
}
.ica-use-case:hover { border-color: var(--ica-primary-light); }
.ica-use-case-icon {
    width: 48px;
    height: 48px;
    background: var(--ica-primary);
    border-radius: var(--ica-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}
.ica-use-case-content h4 {
    margin: 0 0 .375rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--ica-text);
}
.ica-use-case-content p {
    margin: 0;
    font-size: .875rem;
    color: var(--ica-text-secondary);
    line-height: 1.5;
}
.ica-use-case-content p a { color: var(--ica-primary); text-decoration: none; font-weight: 500; }
.ica-use-case-content p a:hover { text-decoration: underline; }

.ica-use-cases-tip {
    display: flex;
    align-items: flex-start;
    gap: .625rem;
    padding: 1rem 1.25rem;
    background: var(--ica-primary-light);
    border-radius: var(--ica-radius-md);
    border: 1px solid var(--ica-primary);
    transition: background-color var(--ica-transition), border-color var(--ica-transition);
}
.ica-use-cases-tip svg,
.ica-use-cases-tip i { color: var(--ica-primary); flex-shrink: 0; margin-top: 2px; }
.ica-use-cases-tip span { font-size: .9rem; color: var(--ica-text-secondary); line-height: 1.5; }
.ica-use-cases-tip a { color: var(--ica-primary); text-decoration: none; font-weight: 500; }
.ica-use-cases-tip a:hover { text-decoration: underline; }

/* ── FAQ (ica-prefixed, standalone, NOT global) ── */
.ica-faq-list { display: grid; gap: .75rem; }

.ica-faq-item {
    border: 1px solid var(--ica-border);
    border-radius: var(--ica-radius-md);
    overflow: hidden;
    transition: border-color .2s;
}
.ica-faq-item.open { border-color: var(--ica-primary); }

.ica-faq-question {
    width: 100%;
    padding: 1rem 1.25rem;
    background: var(--ica-bg);
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--ica-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color .2s;
    gap: 1rem;
}
.ica-faq-question:hover { background: var(--ica-bg-elevated); }
.ica-faq-question svg,
.ica-faq-question i {
    color: var(--ica-primary);
    transition: transform .3s;
    flex-shrink: 0;
}
.ica-faq-item.open .ica-faq-question svg,
.ica-faq-item.open .ica-faq-question i { transform: rotate(180deg); }

.ica-faq-answer {
    display: none;
    padding: 0 1.25rem 1rem;
    background: var(--ica-bg-elevated);
    transition: background-color var(--ica-transition);
}
.ica-faq-item.open .ica-faq-answer { display: block; }
.ica-faq-answer p {
    margin: 0;
    color: var(--ica-text-secondary);
    line-height: 1.7;
    font-size: .95rem;
}
.ica-faq-answer p a { color: var(--ica-primary); text-decoration: none; font-weight: 500; }
.ica-faq-answer p a:hover { text-decoration: underline; }
.ica-faq-answer code {
    background: var(--ica-bg-secondary);
    padding: .15rem .4rem;
    border-radius: 4px;
    font-size: .875rem;
    color: var(--ica-primary);
}

/* ── Responsive ──────────────────────────── */
@media (max-width: 900px) {
    .ica-analysis-grid {
        grid-template-columns: 1fr;
    }
    .ica-preview-panel {
        border-right: none;
        border-bottom: 1px solid var(--ica-border);
    }
    .ica-file-info-bar    { justify-content: center; }
    .ica-tools-grid       { grid-template-columns: 1fr; }
    .ica-compatibility-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .tool-container { padding: 1rem; }
    .tool-title-row { gap: .75rem; }
    .tool-icon-wrapper { width: 48px; height: 48px; }
    .tool-icon-wrapper svg,
    .tool-icon-wrapper i { width: 24px; height: 24px; }

    .ica-upload-section { padding: 2rem 1.5rem; }
    .ica-preview-panel,
    .ica-analysis-panel { padding: 1.5rem; }
    .ica-stats-grid { grid-template-columns: 1fr; }
    .ica-action-bar { flex-direction: column; padding: 1.5rem; }
    .ica-btn { width: 100%; justify-content: center; }
    .ica-related-tools { flex-direction: column; }
    .ica-related-links { justify-content: center; }
    .ica-feature-explain { flex-direction: column; }
    .ica-use-cases-grid  { grid-template-columns: 1fr; }
    .ica-quality-score-card { flex-direction: column; text-align: center; }
    .ica-layer-download-bar { flex-direction: column; }
    .ica-error-message { flex-direction: column; text-align: center; margin: 1rem; }
    .ica-error-icon    { margin: 0 auto; }
}

@media (max-width: 480px) {
    .tool-title { font-size: 1.5rem; }
    .ica-file-info-bar { flex-direction: column; gap: .75rem; align-items: flex-start; }
    .ica-preview-controls { flex-direction: column; align-items: stretch; }
    .ica-control-button { justify-content: center; }
    .ica-compatibility-grid { grid-template-columns: repeat(2, 1fr); }
    .ica-steps-list li { padding-left: 2.75rem; }
}

/* ── Windows Compatibility checks ─────────── */
.ica-win-badge {
    display: inline-block;
    margin-left: .5rem;
    padding: .15rem .55rem;
    border-radius: 999px;
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .03em;
    vertical-align: middle;
}
.ica-win-pass { background: var(--ica-success-light); color: var(--ica-success); }
.ica-win-warn { background: var(--ica-warning-light); color: var(--ica-warning); }
.ica-win-fail { background: var(--ica-danger-light);  color: var(--ica-danger); }

.ica-win-checks-list {
    display: flex;
    flex-direction: column;
    gap: .625rem;
}
.ica-win-check {
    display: flex;
    align-items: flex-start;
    gap: .75rem;
    padding: .75rem .875rem;
    border-radius: 10px;
    border: 1px solid var(--ica-border);
    background: var(--ica-bg);
}
.ica-win-check-pass { background: var(--ica-success-light); border-color: var(--ica-success); }
.ica-win-check-warn { background: var(--ica-warning-light); border-color: var(--ica-warning); }
.ica-win-check-fail { background: var(--ica-danger-light);  border-color: var(--ica-danger); }

.ica-win-check-icon { flex-shrink: 0; margin-top: .1rem; }
.ica-win-check-pass .ica-win-check-icon svg,
.ica-win-check-pass .ica-win-check-icon i { color: var(--ica-success); }
.ica-win-check-warn .ica-win-check-icon svg,
.ica-win-check-warn .ica-win-check-icon i { color: var(--ica-warning); }
.ica-win-check-fail .ica-win-check-icon svg,
.ica-win-check-fail .ica-win-check-icon i { color: var(--ica-danger); }

.ica-win-check-info  { display: flex; flex-direction: column; gap: .2rem; }
.ica-win-check-label { font-weight: 600; font-size: .9rem; color: var(--ica-text); }
.ica-win-check-desc  { font-size: .8rem; line-height: 1.45; color: var(--ica-text-secondary); }

/* Bit-depth mismatch note in layers table */
.ica-bit-mismatch {
    display: inline-block;
    margin-left: .35rem;
    padding: .1rem .45rem;
    border-radius: 6px;
    background: var(--ica-danger-light);
    color: var(--ica-danger);
    font-size: .72rem;
    font-weight: 600;
    white-space: nowrap;
}

/* Platform grid: incompatible state */
.ica-compat-no {
    background: var(--ica-danger-light);
    border-color: var(--ica-danger);
}
.ica-compat-no .ica-compat-icon { color: var(--ica-danger); }

/* Danger recommendation (Windows-breaking issues) */
.ica-rec-danger {
    background: var(--ica-danger-light);
    border: 1px solid var(--ica-danger);
}
.ica-rec-danger .ica-rec-icon { background: var(--ica-danger); color: #fff; }

/* ── Reduced motion ──────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        transition-duration: .01ms !important;
    }
}