/* ==========================================================================
   ImgKit Design System — Sleek Monochrome (Zinc/Obsidian) Redesign
   ========================================================================== */

:root {
    /* Color Palette */
    --bg: #030303;
    --surface: #0b0b0d;
    --border: #1d1d21;
    --border-active: #32323b;
    --accent: #ffffff;
    --accent-dim: #8e8e93;
    --text: #f5f5f7;
    --text-muted: #6e6e73;
    
    /* Tool-specific Premium Accents */
    --accent-square: #e5b82d;     /* Gold */
    --accent-converter: #00c781;  /* Emerald Mint */
    --accent-remover: #a855f7;    /* Lavender Amethyst */
    --accent-watermark: #ff453a;  /* Ruby Red */
    --accent-cropper: #3b82f6;    /* Sapphire Blue */
    --accent-favicon: #06b6d4;    /* Diamond Cyan */
    --accent-trimmer: #f97316;    /* Rust Amber */
    --accent-ocr: #ec4899;        /* Ruby Rose */

    /* Semantic States */
    --success: #30d158;           /* Apple-style green */
    --error: #ff453a;             /* Apple-style red */
    --warning: #ff9f0a;           /* Apple-style orange */

    /* Grid Overlay */
    --grid: radial-gradient(circle, rgba(255, 255, 255, 0.04) 1px, transparent 1px);

    /* Layout Tokens */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg);
    background-image: var(--grid);
    background-size: 24px 24px;
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

/* ===== Header ===== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 32px 0 24px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 40px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #ffffff 0%, #a855f7 100%);
    color: #000000;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(168, 85, 247, 0.25);
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-badge {
    background: rgba(168, 85, 247, 0.1);
    color: #c084fc;
    border: 1px solid rgba(168, 85, 247, 0.2);
    font-size: 9px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-tagline {
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 400;
}

.seo-audit-link {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 199, 129, 0.1);
    color: #34d399;
    border: 1px solid rgba(0, 199, 129, 0.2);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.seo-audit-link:hover {
    background: rgba(0, 199, 129, 0.18);
    border-color: rgba(0, 199, 129, 0.4);
    transform: translateY(-1px);
}

/* ===== Tool Navigation (Stacked/Wrapped Pill Grid) ===== */
.tool-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 32px;
    padding-bottom: 0;
    border-bottom: none;
}

.tool-tab {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.tool-tab:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-active);
    transform: translateY(-1px);
}

.tool-tab.active {
    color: var(--text) !important;
    background: rgba(255, 255, 255, 0.08) !important;
    border-color: var(--border-active) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}


/* Tool-Specific Accent Mapping */
.tool-tab[data-tool="square"] i { color: var(--accent-square); }
.tool-tab.active[data-tool="square"] { color: var(--accent-square); }
.tool-tab.active[data-tool="square"]::after { background: var(--accent-square); }

.tool-tab[data-tool="converter"] i { color: var(--accent-converter); }
.tool-tab.active[data-tool="converter"] { color: var(--accent-converter); }
.tool-tab.active[data-tool="converter"]::after { background: var(--accent-converter); }

.tool-tab[data-tool="remover"] i { color: var(--accent-remover); }
.tool-tab.active[data-tool="remover"] { color: var(--accent-remover); }
.tool-tab.active[data-tool="remover"]::after { background: var(--accent-remover); }

.tool-tab[data-tool="watermark"] i { color: var(--accent-watermark); }
.tool-tab.active[data-tool="watermark"] { color: var(--accent-watermark); }
.tool-tab.active[data-tool="watermark"]::after { background: var(--accent-watermark); }

.tool-tab[data-tool="cropper"] i { color: var(--accent-cropper); }
.tool-tab.active[data-tool="cropper"] { color: var(--accent-cropper); }
.tool-tab.active[data-tool="cropper"]::after { background: var(--accent-cropper); }

.tool-tab[data-tool="favicon"] i { color: var(--accent-favicon); }
.tool-tab.active[data-tool="favicon"] { color: var(--accent-favicon); }
.tool-tab.active[data-tool="favicon"]::after { background: var(--accent-favicon); }

.tool-tab[data-tool="trimmer"] i { color: var(--accent-trimmer); }
.tool-tab.active[data-tool="trimmer"] { color: var(--accent-trimmer); }
.tool-tab.active[data-tool="trimmer"]::after { background: var(--accent-trimmer); }

.tool-tab[data-tool="ocr"] i { color: var(--accent-ocr); }
.tool-tab.active[data-tool="ocr"] { color: var(--accent-ocr); }
.tool-tab.active[data-tool="ocr"]::after { background: var(--accent-ocr); }

.tool-tab i {
    font-size: 14px;
}

.ai-badge {
    font-size: 8px;
    font-weight: 700;
    background: var(--border-active);
    color: var(--accent-dim);
    padding: 2px 5px;
    border-radius: 4px;
    letter-spacing: 0.5px;
    border: 1px solid var(--border);
    transition: all var(--transition-fast);
}

.tool-tab[data-tool="remover"] .ai-badge {
    background: rgba(168, 85, 247, 0.08);
    color: var(--accent-remover);
    border-color: rgba(168, 85, 247, 0.25);
}

.tool-tab[data-tool="ocr"] .ai-badge {
    background: rgba(236, 72, 153, 0.08);
    color: var(--accent-ocr);
    border-color: rgba(236, 72, 153, 0.25);
}

/* Premium Gradient Text scoped per tool */
#squareTool .gradient-text {
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-square) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
#converterTool .gradient-text {
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-converter) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
#removerTool .gradient-text {
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-remover) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
#cropperTool .gradient-text {
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-cropper) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
#faviconTool .gradient-text {
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-favicon) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
#trimmerTool .gradient-text {
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-trimmer) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
#ocrTool .gradient-text {
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-ocr) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== Tool Sections ===== */
.tool-section {
    display: none;
}

.tool-section.active {
    display: block;
}

/* ===== Hero Section ===== */
.hero {
    text-align: center;
    padding: 20px 0 40px;
}

.hero-title {
    font-size: 32px;
    font-weight: 600;
    letter-spacing: -0.8px;
    margin-bottom: 12px;
    color: var(--accent);
}

.hero-subtitle {
    font-size: 14px;
    color: var(--accent-dim);
    max-width: 500px;
    margin: 0 auto;
}

/* ===== Upload Area ===== */
.upload-section {
    margin-bottom: 40px;
}

.upload-area {
    background: var(--surface);
    border: 1px dashed var(--border-active);
    border-radius: var(--radius-lg);
    padding: 56px 40px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
}

.upload-area:hover {
    border-color: var(--accent-dim);
    background: #0e0e0e;
}

.upload-area.drag-over {
    border-color: var(--accent);
    background: #141414;
}

.upload-icon {
    width: 56px;
    height: 56px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 20px;
    color: var(--accent);
    transition: transform var(--transition-fast);
}

.upload-area:hover .upload-icon {
    transform: translateY(-2px);
    border-color: var(--border-active);
}

.upload-title {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 6px;
}

.upload-text {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 16px;
}

.upload-formats {
    font-size: 11px;
    color: var(--text-muted);
    background: var(--bg);
    border: 1px solid var(--border);
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
}

/* Folder Upload */
.folder-upload-option {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px dashed var(--border);
}

.folder-hint {
    font-size: 12px;
    color: var(--text-muted);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    outline: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg);
}

.btn-primary:hover {
    background: #e5e5e5;
}

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border-color: var(--border-active);
}

.btn-secondary:hover {
    background: #121212;
    border-color: var(--accent-dim);
}

.btn-outline {
    background: transparent;
    color: var(--accent-dim);
    border-color: var(--border);
}

.btn-outline:hover {
    color: var(--accent);
    border-color: var(--border-active);
}

.btn-danger {
    background: transparent;
    color: var(--error);
    border-color: rgba(255, 0, 0, 0.2);
}

.btn-danger:hover {
    background: rgba(255, 0, 0, 0.05);
    border-color: var(--error);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: var(--radius-sm);
}

/* ===== Settings Panel ===== */
.settings-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 24px;
    margin-bottom: 40px;
    display: none;
}

.settings-panel.active {
    display: block;
    animation: fadeIn var(--transition-normal);
}

.settings-title {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-dim);
}

.settings-title i {
    font-size: 12px;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.setting-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--accent-dim);
}

/* Custom size active block */
.custom-size-settings {
    display: none;
    grid-column: 1 / -1;
    background: var(--bg);
    border: 1px dashed var(--border-active);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-top: 8px;
}

.custom-size-settings.active {
    display: flex;
    flex-direction: column;
    gap: 12px;
    animation: fadeIn var(--transition-fast);
}

.dimension-inputs {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.dimension-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    min-width: 100px;
}

.dimension-field label {
    font-size: 10px;
    color: var(--text-muted);
}

.input-with-unit {
    display: flex;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.input-with-unit input {
    flex: 1;
    padding: 8px 10px;
    border: none;
    background: transparent;
    color: var(--text);
    font-size: 13px;
    outline: none;
    width: 100%;
}

.input-with-unit .unit {
    padding: 8px 10px;
    background: var(--bg);
    color: var(--text-muted);
    font-size: 11px;
    border-left: 1px solid var(--border);
}

.link-btn {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.link-btn:hover {
    color: var(--accent);
    border-color: var(--border-active);
}

.link-btn.active {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
}

/* ===== Custom Controls (Monochrome styling) ===== */
.setting-group-wide {
    grid-column: span 2;
}

.toggle-buttons {
    display: flex;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 3px;
    gap: 2px;
}

.toggle-buttons-wrap {
    flex-wrap: wrap;
    gap: 4px;
}

.toggle-btn {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    white-space: nowrap;
}

.toggle-buttons-wrap .toggle-btn {
    flex: 1 1 auto;
    min-width: 75px;
    padding: 8px 10px;
}

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

.toggle-btn.active {
    background: var(--surface);
    color: var(--text);
    border-color: var(--border-active);
}

/* Smart Extend AI Badge */
.smart-badge {
    font-size: 8px;
    font-weight: 700;
    background: rgba(168, 85, 247, 0.08);
    color: var(--accent-remover);
    border-color: rgba(168, 85, 247, 0.25);
    padding: 1px 4px;
    border-radius: 4px;
    margin-left: 4px;
    border: 1px solid var(--border);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* Checkbox Container */
.checkbox-container {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 28px;
    cursor: pointer;
    font-size: 13px;
    user-select: none;
    color: var(--text-muted);
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    height: 16px;
    width: 16px;
    background-color: var(--bg);
    border: 1px solid var(--border-active);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.checkbox-container:hover input ~ .checkmark {
    border-color: var(--accent-dim);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--accent);
    border-color: var(--accent);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-container .checkmark:after {
    left: 5px;
    top: 2px;
    width: 4px;
    height: 7px;
    border: solid var(--bg);
    border-width: 0 1.5px 1.5px 0;
    transform: rotate(45deg);
}

/* Inputs & Range */
.text-input {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    color: var(--text);
    font-size: 13px;
    outline: none;
    transition: border-color var(--transition-fast);
}

.text-input:focus {
    border-color: var(--border-active);
}

.quality-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: var(--border);
    outline: none;
    margin: 12px 0;
}

.quality-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.quality-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.slider-hint {
    font-size: 11px;
    color: var(--text-muted);
}

/* BG Remover presets */
.removebg-color-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.removebg-preset {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.removebg-preset:hover {
    border-color: var(--border-active);
    color: var(--text);
}

.removebg-preset.active {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
}

.color-swatch {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.custom-removebg-color {
    display: flex;
    align-items: center;
    gap: 6px;
}

.custom-removebg-color input[type="color"] {
    width: 24px;
    height: 24px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    background: transparent;
    padding: 0;
}

.custom-removebg-color input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.custom-removebg-color input[type="color"]::-webkit-color-swatch {
    border: 1px solid var(--border-active);
    border-radius: 50%;
}

.custom-removebg-color span {
    font-size: 11px;
    color: var(--text-muted);
}

.color-options {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* Color Presets */
.color-presets {
    display: flex;
    gap: 6px;
}

.color-preset {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.color-preset:hover {
    transform: scale(1.05);
}

.color-preset.active {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--bg), 0 0 0 2px var(--accent);
}

.custom-color {
    display: flex;
    align-items: center;
    gap: 6px;
}

.custom-color input[type="color"] {
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    background: transparent;
    padding: 0;
}

.custom-color input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.custom-color input[type="color"]::-webkit-color-swatch {
    border: 1px solid var(--border-active);
    border-radius: 50%;
}

.custom-color-hex {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* format indicator */
.format-badge {
    font-size: 8px;
    font-weight: 700;
    border: 1px solid var(--border-active);
    color: var(--text-muted);
    padding: 1px 4px;
    border-radius: 3px;
    text-transform: uppercase;
    margin-left: 4px;
}

.toggle-btn.active .format-badge {
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--accent-dim);
}

.format-change {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

.format-change span {
    text-transform: uppercase;
    font-weight: 600;
}

.format-change .format-to {
    color: var(--accent);
}

/* ===== Checkered Translucency Background ===== */
.checkered-bg {
    background-image:
        linear-gradient(45deg, #111111 25%, transparent 25%),
        linear-gradient(-45deg, #111111 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #111111 75%),
        linear-gradient(-45deg, transparent 75%, #111111 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
    background-color: #050505;
}

/* ===== Preview Section (Redesigned Grid) ===== */
.preview-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 24px;
    margin-bottom: 40px;
    display: none;
}

.preview-section.active {
    display: block;
    animation: fadeIn var(--transition-normal);
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.preview-title {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-dim);
}

.preview-title i {
    font-size: 12px;
}

.preview-actions {
    display: flex;
    gap: 8px;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}

.preview-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.preview-item:hover {
    border-color: var(--border-active);
}

.preview-image-container {
    position: relative;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.preview-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.preview-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--border-active);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 9px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.preview-info {
    padding: 12px;
}

.preview-filename {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.preview-dimensions {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.preview-dimensions span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.dimension-arrow {
    color: var(--text-muted);
}

.preview-actions-row {
    display: flex;
    gap: 6px;
}

.preview-actions-row .btn {
    flex: 1;
}

/* File Size Info */
.file-size-info {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
    font-size: 11px;
}

.size-original {
    color: var(--text-muted);
}

.size-arrow {
    color: var(--text-muted);
}

.size-converted {
    color: var(--text);
    font-weight: 500;
}

.size-saved {
    background: var(--border-active);
    color: var(--success);
    font-size: 9px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
}

.size-increased {
    background: rgba(255, 0, 0, 0.1);
    color: var(--error);
    font-size: 9px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
}

/* ===== Statistics Section ===== */
.stats-section {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.stats-section.active {
    display: grid;
    animation: fadeIn var(--transition-normal);
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all var(--transition-fast);
}

.stat-card:hover {
    border-color: var(--border-active);
}

.stat-icon {
    width: 36px;
    height: 36px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--accent);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.stat-label {
    font-size: 11px;
    color: var(--text-muted);
}

/* ===== Image Crop Tool specific workspace ===== */
.crop-workspace {
    display: none;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 40px;
}

.crop-workspace.active {
    display: flex;
    animation: fadeIn var(--transition-normal);
}

.crop-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
}

.crop-toolbar-left,
.crop-toolbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.crop-dimensions {
    font-size: 11px;
    font-weight: 600;
    color: var(--accent);
    background: var(--border-active);
    padding: 4px 10px;
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.crop-canvas-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    max-height: 70vh;
    background: #050505;
    overflow: hidden;
    cursor: crosshair;
    user-select: none;
    -webkit-user-select: none;
}

.crop-source-image {
    display: block;
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    pointer-events: none;
}

.crop-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.crop-selection {
    position: absolute;
    border: 1px solid var(--accent);
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.7);
    cursor: move;
    z-index: 10;
}

.crop-selection::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px dashed rgba(255, 255, 255, 0.2);
}

.crop-grid {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.crop-grid::before,
.crop-grid::after {
    content: '';
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
}

.crop-grid::before {
    top: 33.33%;
    left: 0;
    right: 0;
    height: 1px;
    box-shadow: 0 calc(33.33cqh) 0 rgba(255, 255, 255, 0.15);
}

.crop-grid::after {
    left: 33.33%;
    top: 0;
    bottom: 0;
    width: 1px;
    box-shadow: calc(33.33cqw) 0 0 rgba(255, 255, 255, 0.15);
}

.crop-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border: 1px solid var(--bg);
    border-radius: 50%;
    z-index: 20;
}

.crop-handle[data-handle="nw"] { top: -5px; left: -5px; cursor: nw-resize; }
.crop-handle[data-handle="n"] { top: -5px; left: 50%; transform: translateX(-50%); cursor: n-resize; }
.crop-handle[data-handle="ne"] { top: -5px; right: -5px; cursor: ne-resize; }
.crop-handle[data-handle="w"] { top: 50%; left: -5px; transform: translateY(-50%); cursor: w-resize; }
.crop-handle[data-handle="e"] { top: 50%; right: -5px; transform: translateY(-50%); cursor: e-resize; }
.crop-handle[data-handle="sw"] { bottom: -5px; left: -5px; cursor: sw-resize; }
.crop-handle[data-handle="s"] { bottom: -5px; left: 50%; transform: translateX(-50%); cursor: s-resize; }
.crop-handle[data-handle="se"] { bottom: -5px; right: -5px; cursor: se-resize; }

.crop-apply-row {
    display: flex;
    justify-content: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* ===== Favicon Tool specifics ===== */
.favicon-platform-checks {
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: var(--bg);
    padding: 12px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.favicon-html-preview {
    grid-column: 1 / -1;
    margin-top: 16px;
    background: var(--bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
}

.html-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
}

.html-code-block {
    padding: 12px;
    margin: 0;
    font-family: 'ui-monospace', monospace;
    font-size: 11px;
    line-height: 1.4;
    color: var(--text-muted);
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.favicon-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
}

.favicon-item {
    background: var(--bg);
    border-radius: var(--radius-md);
    padding: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--border);
}

.favicon-icon-wrapper {
    width: 48px;
    height: 48px;
    background: white;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
}

.favicon-icon-wrapper img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.favicon-size-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text);
}

.favicon-name-label {
    font-size: 10px;
    color: var(--text-muted);
    text-align: center;
}

/* ===== Trimmer Tool specifics ===== */
.trim-preview-container {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--border-active);
    padding: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 260px;
    background-image: 
        linear-gradient(45deg, #0d0d0d 25%, transparent 25%), 
        linear-gradient(-45deg, #0d0d0d 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #0d0d0d 75%), 
        linear-gradient(-45deg, transparent 75%, #0d0d0d 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}

#trimPreviewCanvas {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

/* ===== OCR Tool specifics ===== */
.ocr-progress-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
    margin-bottom: 24px;
}

.ocr-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

#ocrStatusText {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
}

#ocrProgressValue {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
}

.ocr-progress-bar {
    height: 4px;
    background: var(--bg);
    border-radius: 2px;
    overflow: hidden;
}

.ocr-progress-fill {
    height: 100%;
    background: var(--accent);
    width: 0%;
    transition: width 0.3s ease;
}

.ocr-result-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: 12px;
}

.ocr-textarea {
    width: 100%;
    min-height: 350px;
    background: var(--surface);
    border: none;
    color: var(--text);
    padding: 20px;
    font-family: 'ui-monospace', 'Cascadia Code', monospace;
    font-size: 13px;
    line-height: 1.5;
    white-space: pre;
    overflow-x: auto;
    resize: vertical;
    outline: none;
}

.ocr-textarea:focus {
    background: #0d0d0d;
}

/* ===== Features Section ===== */
.features {
    padding: 48px 0;
    border-top: 1px solid var(--border);
    margin-top: 40px;
}

.features-title {
    text-align: center;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 32px;
    letter-spacing: -0.5px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: all var(--transition-fast);
}

.feature-card:hover {
    border-color: var(--border-active);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 16px;
    color: var(--accent);
}

.feature-card h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.5;
}

.feature-card-ai {
    border-color: var(--border-active);
}

.feature-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 8px;
    font-weight: 700;
    background: var(--accent);
    color: var(--bg);
    padding: 2px 6px;
    border-radius: 3px;
    text-transform: uppercase;
}

/* ===== Footer ===== */
.footer {
    padding: 40px 0 24px;
    border-top: 1px solid var(--border);
    margin-top: 60px;
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 12px;
    max-width: 340px;
    line-height: 1.5;
}

.footer-socials {
    display: flex;
    align-items: center;
    gap: 6px;
}

.social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 15px;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-link:hover {
    color: #ffffff;
    border-color: var(--border-active);
    transform: translateY(-2px);
}

.social-link[title="GitHub"]:hover { background: #24292f; border-color: #444d56; }
.social-link[title="X / Twitter"]:hover { background: #1a1a2e; border-color: #333; }
.social-link[title="Instagram"]:hover { background: linear-gradient(135deg, #833ab4, #fd1d1d, #fcb045); border-color: #c13584; }
.social-link[title="LinkedIn"]:hover { background: #0a66c2; border-color: #0a66c2; }
.social-link[title="YouTube"]:hover { background: #ff0000; border-color: #ff0000; }
.social-link[title="Discord"]:hover { background: #5865f2; border-color: #5865f2; }

.footer-divider {
    height: 1px;
    background: var(--border);
    margin: 20px 0;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

.footer-dev-link {
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.footer-dev-link:hover {
    color: #c084fc;
}

.footer-handle {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: -0.3px;
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.loading-content {
    background: var(--surface);
    border: 1px solid var(--border-active);
    padding: 32px;
    border-radius: var(--radius-xl);
    text-align: center;
    min-width: 240px;
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    margin: 0 auto 16px;
    animation: spin 0.8s linear infinite;
}

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

.loading-content p {
    font-size: 13px;
    font-weight: 500;
}

.loading-content .loading-status {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ===== HEIC Size Warning Modal (Monochrome Style) ===== */
.heic-size-warning {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--surface);
    border: 1px solid var(--border-active);
    border-radius: var(--radius-xl);
    padding: 24px;
    max-width: 440px;
    width: calc(100% - 32px);
    z-index: 2000;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
    display: none;
}

.heic-size-warning.active {
    display: block;
    animation: fadeIn var(--transition-fast);
}

.heic-warning-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 8px;
}

.heic-warning-text {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
    line-height: 1.5;
}

.heic-warning-list {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    margin-bottom: 20px;
}

.heic-warning-list li {
    font-size: 12px;
    color: var(--accent-dim);
    margin-bottom: 8px;
    list-style-type: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

.heic-warning-list li::before {
    content: '•';
    color: var(--accent);
}

.heic-warning-list li:last-child {
    margin-bottom: 0;
}

/* ===== Responsive Utilities & Device Optimizations ===== */

/* Large Mobile / Tablet */
@media (max-width: 768px) {
    .app-container {
        padding: 0 16px 32px;
    }

    .header {
        flex-direction: column;
        gap: 12px;
        text-align: center;
        padding: 24px 0 16px;
    }

    .header-tagline {
        margin-top: 4px;
    }

    .hero-title {
        font-size: 24px;
    }

    .hero-subtitle {
        font-size: 13px;
        padding: 0 8px;
    }

    .tool-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        border-bottom: none;
        margin-bottom: 24px;
        overflow-x: visible;
        white-space: normal;
        padding: 0;
    }

    .tool-tab {
        flex: 1 1 calc(50% - 4px);
        min-width: 120px;
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: 8px;
        position: relative;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 10px 12px;
        font-size: 12px;
        transition: all var(--transition-fast);
        white-space: nowrap;
        text-align: left;
    }

    .tool-tab i {
        font-size: 14px;
    }

    .tool-tab .ai-badge {
        position: absolute;
        top: 4px;
        right: 4px;
        font-size: 7px;
        padding: 1px 3px;
    }

    .tool-tab:hover {
        border-color: var(--border-active);
    }

    .tool-tab.active::after {
        display: none;
    }

    /* Active Tool Specific Glow on Mobile */
    .tool-tab.active[data-tool="converter"] {
        background: rgba(16, 185, 129, 0.08);
        border-color: var(--accent-converter);
        color: var(--accent-converter);
    }
    .tool-tab.active[data-tool="square"] {
        background: rgba(236, 72, 153, 0.08);
        border-color: var(--accent-square);
        color: var(--accent-square);
    }
    .tool-tab.active[data-tool="remover"] {
        background: rgba(168, 85, 247, 0.08);
        border-color: var(--accent-remover);
        color: var(--accent-remover);
    }
    .tool-tab.active[data-tool="watermark"] {
        background: rgba(255, 69, 58, 0.08);
        border-color: var(--accent-watermark);
        color: var(--accent-watermark);
    }
    .tool-tab.active[data-tool="cropper"] {
        background: rgba(59, 130, 246, 0.08);
        border-color: var(--accent-cropper);
        color: var(--accent-cropper);
    }
    .tool-tab.active[data-tool="favicon"] {
        background: rgba(245, 158, 11, 0.08);
        border-color: var(--accent-favicon);
        color: var(--accent-favicon);
    }
    .tool-tab.active[data-tool="trimmer"] {
        background: rgba(20, 184, 166, 0.08);
        border-color: var(--accent-trimmer);
        color: var(--accent-trimmer);
    }
    .tool-tab.active[data-tool="ocr"] {
        background: rgba(236, 72, 153, 0.08);
        border-color: var(--accent-ocr);
        color: var(--accent-ocr);
    }

    .tool-tab.active .ai-badge {
        background: transparent;
        border-color: currentColor;
        color: currentColor;
    }

    .upload-area {
        padding: 36px 20px;
    }

    .settings-panel,
    .preview-section {
        padding: 16px;
    }

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

    .crop-canvas-container {
        max-height: 50vh;
        min-height: 240px;
    }

    .crop-source-image {
        max-height: 50vh;
    }

    /* iOS Safari zoom prevention on focus */
    .text-input, 
    select, 
    textarea {
        font-size: 16px !important;
    }
}

/* Medium/Small Mobile */
@media (max-width: 600px) {
    .preview-header {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .preview-actions {
        flex-direction: column;
        width: 100%;
        gap: 8px;
    }

    .preview-actions .btn {
        width: 100%;
    }

    .settings-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .dimension-inputs {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .dimension-field {
        width: 100%;
    }

    .link-btn {
        width: 100%;
        height: 40px;
    }

    .color-options,
    .removebg-color-options {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .color-presets {
        justify-content: center;
        flex-wrap: wrap;
    }

    .custom-color,
    .custom-removebg-color {
        justify-content: center;
    }

    .toggle-buttons-wrap {
        flex-wrap: wrap;
    }
    
    .toggle-buttons-wrap .toggle-btn {
        flex: 1 1 calc(33.33% - 4px);
        font-size: 11px;
        padding: 8px 4px;
    }
}

/* Extra Small Devices */
@media (max-width: 480px) {
    .tool-nav {
        gap: 6px;
        margin-bottom: 18px;
    }
    
    .tool-tab {
        font-size: 11px;
        padding: 8px 4px;
        flex-direction: column;
        gap: 4px;
    }

    .tool-tab i {
        font-size: 12px;
    }

    .stats-section {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .upload-title {
        font-size: 15px;
    }

    .upload-text {
        font-size: 12px;
    }

    .upload-formats {
        font-size: 10px;
    }

    .favicon-preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
        gap: 10px;
    }

    .heic-size-warning {
        padding: 16px;
    }

    .heic-warning-title {
        font-size: 14px;
    }

    .heic-warning-text {
        font-size: 12px;
    }
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   ImgKit Premium Color Coding & Workspace Overrides
   ========================================================================== */

/* 1. Upload Areas (Hover & Dragover) */
#uploadArea:hover { border-color: var(--accent-square); background: rgba(229, 184, 45, 0.015); }
#uploadArea.drag-over { border-color: var(--accent-square); background: rgba(229, 184, 45, 0.04); }
#uploadArea:hover .upload-icon { color: var(--accent-square); border-color: rgba(229, 184, 45, 0.25); }

#converterUploadArea:hover { border-color: var(--accent-converter); background: rgba(0, 199, 129, 0.015); }
#converterUploadArea.drag-over { border-color: var(--accent-converter); background: rgba(0, 199, 129, 0.04); }
#converterUploadArea:hover .upload-icon { color: var(--accent-converter); border-color: rgba(0, 199, 129, 0.25); }

#removerUploadArea:hover { border-color: var(--accent-remover); background: rgba(168, 85, 247, 0.015); }
#removerUploadArea.drag-over { border-color: var(--accent-remover); background: rgba(168, 85, 247, 0.04); }
#removerUploadArea:hover .upload-icon { color: var(--accent-remover); border-color: rgba(168, 85, 247, 0.25); }

#cropperUploadArea:hover { border-color: var(--accent-cropper); background: rgba(59, 130, 246, 0.015); }
#cropperUploadArea.drag-over { border-color: var(--accent-cropper); background: rgba(59, 130, 246, 0.04); }
#cropperUploadArea:hover .upload-icon { color: var(--accent-cropper); border-color: rgba(59, 130, 246, 0.25); }

#faviconUploadArea:hover { border-color: var(--accent-favicon); background: rgba(6, 182, 212, 0.015); }
#faviconUploadArea.drag-over { border-color: var(--accent-favicon); background: rgba(6, 182, 212, 0.04); }
#faviconUploadArea:hover .upload-icon { color: var(--accent-favicon); border-color: rgba(6, 182, 212, 0.25); }

#trimmerUploadArea:hover { border-color: var(--accent-trimmer); background: rgba(249, 115, 22, 0.015); }
#trimmerUploadArea.drag-over { border-color: var(--accent-trimmer); background: rgba(249, 115, 22, 0.04); }
#trimmerUploadArea:hover .upload-icon { color: var(--accent-trimmer); border-color: rgba(249, 115, 22, 0.25); }

#ocrUploadArea:hover { border-color: var(--accent-ocr); background: rgba(236, 72, 153, 0.015); }
#ocrUploadArea.drag-over { border-color: var(--accent-ocr); background: rgba(236, 72, 153, 0.04); }
#ocrUploadArea:hover .upload-icon { color: var(--accent-ocr); border-color: rgba(236, 72, 153, 0.25); }

/* 2. Primary Action Buttons */
#squareTool .btn-primary { background: var(--accent-square); color: #000000; font-weight: 600; }
#squareTool .btn-primary:hover { background: #d0a525; }

#converterTool .btn-primary { background: var(--accent-converter); color: #000000; font-weight: 600; }
#converterTool .btn-primary:hover { background: #00b072; }

#removerTool .btn-primary { background: var(--accent-remover); color: #ffffff; font-weight: 600; }
#removerTool .btn-primary:hover { background: #9333ea; }

#cropperTool .btn-primary { background: var(--accent-cropper); color: #ffffff; font-weight: 600; }
#cropperTool .btn-primary:hover { background: #2563eb; }

#faviconTool .btn-primary { background: var(--accent-favicon); color: #000000; font-weight: 600; }
#faviconTool .btn-primary:hover { background: #0891b2; }

#trimmerTool .btn-primary { background: var(--accent-trimmer); color: #ffffff; font-weight: 600; }
#trimmerTool .btn-primary:hover { background: #ea580c; }

#ocrTool .btn-primary { background: var(--accent-ocr); color: #ffffff; font-weight: 600; }
#ocrTool .btn-primary:hover { background: #db2777; }

/* 3. Range Sliders Thumb Color */
#squareTool .quality-slider::-webkit-slider-thumb { background: var(--accent-square); }
#converterTool .quality-slider::-webkit-slider-thumb { background: var(--accent-converter); }
#removerTool .quality-slider::-webkit-slider-thumb { background: var(--accent-remover); }
#cropperTool .quality-slider::-webkit-slider-thumb { background: var(--accent-cropper); }
#faviconTool .quality-slider::-webkit-slider-thumb { background: var(--accent-favicon); }
#trimmerTool .quality-slider::-webkit-slider-thumb { background: var(--accent-trimmer); }
#ocrTool .quality-slider::-webkit-slider-thumb { background: var(--accent-ocr); }

/* 4. Active Option Toggle Buttons */
#squareTool .toggle-btn.active { background: rgba(229, 184, 45, 0.08) !important; border-color: rgba(229, 184, 45, 0.25) !important; color: var(--accent-square) !important; }
#converterTool .toggle-btn.active { background: rgba(0, 199, 129, 0.08) !important; border-color: rgba(0, 199, 129, 0.25) !important; color: var(--accent-converter) !important; }
#removerTool .toggle-btn.active { background: rgba(168, 85, 247, 0.08) !important; border-color: rgba(168, 85, 247, 0.25) !important; color: var(--accent-remover) !important; }
#cropperTool .toggle-btn.active { background: rgba(59, 130, 246, 0.08) !important; border-color: rgba(59, 130, 246, 0.25) !important; color: var(--accent-cropper) !important; }
#faviconTool .toggle-btn.active { background: rgba(6, 182, 212, 0.08) !important; border-color: rgba(6, 182, 212, 0.25) !important; color: var(--accent-favicon) !important; }
#trimmerTool .toggle-btn.active { background: rgba(249, 115, 22, 0.08) !important; border-color: rgba(249, 115, 22, 0.25) !important; color: var(--accent-trimmer) !important; }
#ocrTool .toggle-btn.active { background: rgba(236, 72, 153, 0.08) !important; border-color: rgba(236, 72, 153, 0.25) !important; color: var(--accent-ocr) !important; }

/* 5. Stat Card Icons */
#squareTool .stat-icon { color: var(--accent-square); background: rgba(229, 184, 45, 0.05); border-color: rgba(229, 184, 45, 0.1); }
#converterTool .stat-icon { color: var(--accent-converter); background: rgba(0, 199, 129, 0.05); border-color: rgba(0, 199, 129, 0.1); }
#removerTool .stat-icon { color: var(--accent-remover); background: rgba(168, 85, 247, 0.05); border-color: rgba(168, 85, 247, 0.1); }
#cropperTool .stat-icon { color: var(--accent-cropper); background: rgba(59, 130, 246, 0.05); border-color: rgba(59, 130, 246, 0.1); }
#faviconTool .stat-icon { color: var(--accent-favicon); background: rgba(6, 182, 212, 0.05); border-color: rgba(6, 182, 212, 0.1); }
#trimmerTool .stat-icon { color: var(--accent-trimmer); background: rgba(249, 115, 22, 0.05); border-color: rgba(249, 115, 22, 0.1); }
#ocrTool .stat-icon { color: var(--accent-ocr); background: rgba(236, 72, 153, 0.05); border-color: rgba(236, 72, 153, 0.1); }
#watermarkTool .stat-icon { color: var(--accent-watermark); background: rgba(255, 69, 58, 0.05); border-color: rgba(255, 69, 58, 0.1); }

#watermarkTool .btn-primary { background: var(--accent-watermark); color: #ffffff; font-weight: 600; }
#watermarkTool .btn-primary:hover { background: #e03b30; }
#watermarkTool .quality-slider::-webkit-slider-thumb { background: var(--accent-watermark); }
#watermarkTool .toggle-btn.active { background: rgba(255, 69, 58, 0.08) !important; border-color: rgba(255, 69, 58, 0.25) !important; color: var(--accent-watermark) !important; }

/* ===== Watermark Canvas Editor UI ===== */
.watermark-editor-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    width: 100%;
}

.watermark-canvas-viewport {
    position: relative;
    max-width: 100%;
    max-height: 70vh;
    overflow: auto;
    border-radius: var(--radius-md);
    background: #000000;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.8), 0 4px 24px rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: 10px;
}

.watermark-canvas-wrapper {
    position: relative;
    display: inline-block;
    max-width: 100%;
}

#watermarkCanvas {
    display: block;
    max-width: 100%;
    height: auto;
}

#watermarkMaskCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: crosshair;
    mix-blend-mode: normal;
}

.canvas-controls-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 20px;
    gap: 16px;
    flex-wrap: wrap;
}

.canvas-controls-bar .control-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.canvas-controls-bar .btn-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.canvas-controls-bar .btn-icon:hover {
    color: var(--text);
    border-color: var(--border-active);
}

.canvas-controls-bar .btn-icon.active {
    background: rgba(255, 69, 58, 0.08);
    border-color: var(--accent-watermark);
    color: var(--accent-watermark);
}

.input-with-action {
    display: flex;
    gap: 8px;
    width: 100%;
}

.input-with-action .text-input {
    flex: 1;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text);
    font-size: 13px;
    transition: all var(--transition-fast);
}

.input-with-action .text-input:focus {
    outline: none;
    border-color: var(--border-active);
}

/* ===== Video Tool UI ===== */
#videoTool .upload-area {
    border-color: var(--accent-watermark);
}

.video-workspace-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
    width: 100%;
    align-items: start;
}

@media (max-width: 992px) {
    .video-workspace-container {
        grid-template-columns: 1fr;
    }
}

.video-preview-card, .video-settings-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.video-viewport {
    background: #000000;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 16/9;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.8);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.video-viewport video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.video-info-strip {
    display: flex;
    justify-content: space-around;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px;
    gap: 12px;
    flex-wrap: wrap;
}

.video-info-strip .info-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    min-width: 80px;
}

.video-info-strip .info-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.video-info-strip .info-val {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

/* Video Progress */
.video-progress-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 30px;
    width: 100%;
    max-width: 600px;
    margin: 40px auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

/* Accent override for active tab */
.tool-tab[data-tool="video"].active {
    border-bottom-color: var(--accent-watermark) !important;
    color: var(--accent-watermark) !important;
}

.tool-tab[data-tool="video"] .ai-badge {
    background: var(--accent-watermark) !important;
}

/* Size Manager Styles */
.input-with-unit-toggle {
    display: flex;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-with-unit-toggle:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(0, 242, 254, 0.15);
}

.input-with-unit-toggle input {
    flex: 1;
    padding: 10px 12px;
    border: none;
    background: transparent;
    color: var(--text);
    font-size: 14px;
    outline: none;
    width: 100%;
}

.input-with-unit-toggle select.unit-select {
    padding: 10px 12px;
    background: var(--bg);
    color: var(--text);
    font-size: 13px;
    border: none;
    border-left: 1px solid var(--border);
    outline: none;
    cursor: pointer;
    border-radius: 0;
    font-weight: 500;
}

.input-with-unit-toggle select.unit-select:focus {
    background: var(--surface-hover);
}

/* Accent override for active tab */
.tool-tab[data-tool="sizemanager"].active {
    border-bottom-color: var(--primary) !important;
    color: var(--primary) !important;
}

.tool-tab[data-tool="sizemanager"] .ai-badge {
    background: var(--primary) !important;
}

/* Responsive Split Layout for SVG Tool and others */
.tool-split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
    width: 100%;
    align-items: start;
}

@media (max-width: 992px) {
    .tool-split-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}