/* ═══════════════════════════════════════════════════════════
   BackgroundRemover.css
   Primary color: #1A73E8 (Google Blue family)
   Dark mode: prefers-color-scheme + .dark-mode class support
   BEM-style naming: .bgr-*
════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────
   CSS CUSTOM PROPERTIES
───────────────────────────────────────── */
:root {
    --bgr-primary:          #1A73E8;
    --bgr-primary-dark:     #1557B0;
    --bgr-primary-light:    #4A90E2;
    --bgr-primary-ultra:    #E8F0FE;
    --bgr-accent:           #0D47A1;

    --bgr-success:          #34A853;
    --bgr-error:            #EA4335;
    --bgr-warning:          #FBBC04;

    --bgr-bg:               #F8FAFF;
    --bgr-surface:          #FFFFFF;
    --bgr-surface-2:        #F1F5FB;
    --bgr-border:           #E2E8F4;
    --bgr-border-focus:     #1A73E8;

    --bgr-text:             #1A1F36;
    --bgr-text-muted:       #5A6480;
    --bgr-text-light:       #8A93B0;

    --bgr-shadow-sm:        0 1px 4px rgba(26,115,232,0.08);
    --bgr-shadow-md:        0 4px 16px rgba(26,115,232,0.12);
    --bgr-shadow-lg:        0 8px 32px rgba(26,115,232,0.16);
    --bgr-shadow-xl:        0 16px 48px rgba(26,115,232,0.20);

    --bgr-radius-sm:        6px;
    --bgr-radius-md:        12px;
    --bgr-radius-lg:        20px;
    --bgr-radius-xl:        28px;
    --bgr-radius-full:      9999px;

    --bgr-transition:       0.22s cubic-bezier(0.4, 0, 0.2, 1);
    --bgr-transition-fast:  0.12s ease;

    --bgr-font:             'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --bgr-font-mono:        'JetBrains Mono', 'Fira Code', monospace;
}

/* Dark mode tokens */
@media (prefers-color-scheme: dark) {
    :root {
        --bgr-bg:           #0F1117;
        --bgr-surface:      #1A1D27;
        --bgr-surface-2:    #22263A;
        --bgr-border:       #2E3350;
        --bgr-text:         #E8EAF6;
        --bgr-text-muted:   #8A93B0;
        --bgr-text-light:   #5A6480;
        --bgr-primary-ultra:#1A2A4A;
        --bgr-shadow-sm:    0 1px 4px rgba(0,0,0,0.3);
        --bgr-shadow-md:    0 4px 16px rgba(0,0,0,0.4);
        --bgr-shadow-lg:    0 8px 32px rgba(0,0,0,0.5);
        --bgr-shadow-xl:    0 16px 48px rgba(0,0,0,0.6);
    }
}

/* Manual dark mode class (for layout toggle) */
.dark-mode {
    --bgr-bg:           #0F1117;
    --bgr-surface:      #1A1D27;
    --bgr-surface-2:    #22263A;
    --bgr-border:       #2E3350;
    --bgr-text:         #E8EAF6;
    --bgr-text-muted:   #8A93B0;
    --bgr-text-light:   #5A6480;
    --bgr-primary-ultra:#1A2A4A;
    --bgr-shadow-sm:    0 1px 4px rgba(0,0,0,0.3);
    --bgr-shadow-md:    0 4px 16px rgba(0,0,0,0.4);
    --bgr-shadow-lg:    0 8px 32px rgba(0,0,0,0.5);
    --bgr-shadow-xl:    0 16px 48px rgba(0,0,0,0.6);
}

/* ─────────────────────────────────────────
   PAGE BASE
───────────────────────────────────────── */
.bg-remover-page {
    background-color: var(--bgr-bg);
    color: var(--bgr-text);
    font-family: var(--bgr-font);
    line-height: 1.6;
}

/* ─────────────────────────────────────────
   SHARED UTILITIES
───────────────────────────────────────── */
.bgr-section-title {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    color: var(--bgr-text);
    text-align: center;
    margin: 0 0 0.5rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.bgr-section-sub {
    font-size: 1.05rem;
    color: var(--bgr-text-muted);
    text-align: center;
    margin: 0 0 2.5rem;
}

.bgr-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--bgr-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.5rem;
}

.bgr-value {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--bgr-primary);
    font-family: var(--bgr-font-mono);
}

/* ─────────────────────────────────────────
   BUTTONS
───────────────────────────────────────── */
.bgr-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.65rem 1.4rem;
    border-radius: var(--bgr-radius-full);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--bgr-font);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--bgr-transition);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
    position: relative;
    overflow: hidden;
}

.bgr-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0);
    transition: background var(--bgr-transition-fast);
    border-radius: inherit;
    pointer-events: none;
}

.bgr-btn:hover::after  { background: rgba(255,255,255,0.12); }
.bgr-btn:active::after { background: rgba(0,0,0,0.08); }

.bgr-btn:focus-visible {
    outline: 3px solid var(--bgr-primary);
    outline-offset: 3px;
}

/* Primary */
.bgr-btn--primary {
    background: linear-gradient(135deg, var(--bgr-primary), var(--bgr-accent));
    color: #fff;
    box-shadow: 0 4px 14px rgba(26,115,232,0.35);
}
.bgr-btn--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(26,115,232,0.45);
}
.bgr-btn--primary:active { transform: translateY(0); }

/* Outline */
.bgr-btn--outline {
    background: transparent;
    border-color: var(--bgr-border);
    color: var(--bgr-text);
}
.bgr-btn--outline:hover {
    border-color: var(--bgr-primary);
    color: var(--bgr-primary);
    background: var(--bgr-primary-ultra);
}

/* Ghost */
.bgr-btn--ghost {
    background: transparent;
    border-color: transparent;
    color: var(--bgr-text-muted);
}
.bgr-btn--ghost:hover {
    background: var(--bgr-surface-2);
    color: var(--bgr-text);
}

/* Secondary */
.bgr-btn--secondary {
    background: var(--bgr-surface-2);
    border-color: var(--bgr-border);
    color: var(--bgr-text);
}
.bgr-btn--secondary:hover {
    background: var(--bgr-primary-ultra);
    border-color: var(--bgr-primary);
    color: var(--bgr-primary);
}

/* Sizes */
.bgr-btn--sm   { padding: 0.45rem 1rem; font-size: 0.85rem; }
.bgr-btn--full { width: 100%; justify-content: center; }

/* ─────────────────────────────────────────
   HERO SECTION
───────────────────────────────────────── */
.bgr-hero {
    background: linear-gradient(160deg, var(--bgr-surface) 0%, var(--bgr-bg) 60%, var(--bgr-primary-ultra) 100%);
    padding: 4rem 1.5rem 3rem;
    position: relative;
    overflow: hidden;
}

.bgr-hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -120px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(26,115,232,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.bgr-hero__inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

/* Hero Text */
.bgr-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--bgr-primary-ultra);
    color: var(--bgr-primary);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.35rem 0.85rem;
    border-radius: var(--bgr-radius-full);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 1.2rem;
    border: 1px solid rgba(26,115,232,0.2);
}

.bgr-hero__title {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--bgr-text);
    margin: 0 0 1rem;
}

.bgr-hero__title-accent {
    background: linear-gradient(135deg, var(--bgr-primary), var(--bgr-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bgr-hero__subtitle {
    font-size: 1.05rem;
    color: var(--bgr-text-muted);
    margin: 0 0 1.5rem;
    line-height: 1.7;
    max-width: 480px;
}

.bgr-hero__features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.bgr-hero__features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--bgr-text-muted);
    font-weight: 500;
}

.bgr-hero__features li svg {
    color: var(--bgr-success);
    flex-shrink: 0;
}

/* ─────────────────────────────────────────
   UPLOAD CARD
───────────────────────────────────────── */
.bgr-hero__upload-card {
    background: var(--bgr-surface);
    border-radius: var(--bgr-radius-xl);
    padding: 2rem;
    box-shadow: var(--bgr-shadow-xl);
    border: 1px solid var(--bgr-border);
}

/* Drop Zone */
.bgr-dropzone {
    border: 2px dashed var(--bgr-border);
    border-radius: var(--bgr-radius-lg);
    padding: 2.5rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--bgr-transition);
    background: var(--bgr-surface-2);
    position: relative;
}

.bgr-dropzone:hover,
.bgr-dropzone:focus-visible {
    border-color: var(--bgr-primary);
    background: var(--bgr-primary-ultra);
    box-shadow: 0 0 0 4px rgba(26,115,232,0.08);
    outline: none;
}

.bgr-dropzone--drag {
    border-color: var(--bgr-primary) !important;
    background: var(--bgr-primary-ultra) !important;
    transform: scale(1.01);
    box-shadow: var(--bgr-shadow-md) !important;
}

.bgr-dropzone__icon {
    color: var(--bgr-primary);
    opacity: 0.5;
    margin-bottom: 1rem;
}

.bgr-dropzone__hint {
    font-size: 0.85rem;
    color: var(--bgr-text-light);
    margin: 0.6rem 0 0;
}

/* URL Input */
.bgr-url-input-wrap {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    align-items: center;
}

.bgr-url-input {
    flex: 1;
    padding: 0.55rem 0.9rem;
    border: 1.5px solid var(--bgr-border);
    border-radius: var(--bgr-radius-full);
    font-size: 0.85rem;
    background: var(--bgr-surface);
    color: var(--bgr-text);
    font-family: var(--bgr-font);
    transition: border-color var(--bgr-transition);
    min-width: 0;
}

.bgr-url-input:focus {
    outline: none;
    border-color: var(--bgr-primary);
    box-shadow: 0 0 0 3px rgba(26,115,232,0.12);
}

.bgr-url-input::placeholder { color: var(--bgr-text-light); }

/* Sample Thumbnails */
.bgr-samples {
    margin-top: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.bgr-samples__label {
    font-size: 0.78rem;
    color: var(--bgr-text-light);
    white-space: nowrap;
}

.bgr-samples__grid {
    display: flex;
    gap: 0.5rem;
}

.bgr-sample-thumb {
    width: 48px;
    height: 48px;
    border-radius: var(--bgr-radius-sm);
    overflow: hidden;
    border: 2px solid var(--bgr-border);
    cursor: pointer;
    transition: all var(--bgr-transition);
    padding: 0;
    background: none;
}

.bgr-sample-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.bgr-sample-thumb:hover {
    border-color: var(--bgr-primary);
    transform: scale(1.08);
    box-shadow: var(--bgr-shadow-md);
}

.bgr-sample-thumb:focus-visible {
    outline: 3px solid var(--bgr-primary);
    outline-offset: 2px;
}

/* Privacy Note */
.bgr-privacy-note {
    display: flex;
    align-items: flex-start;
    gap: 0.4rem;
    font-size: 0.73rem;
    color: var(--bgr-text-light);
    margin-top: 1.2rem;
    line-height: 1.5;
}

.bgr-privacy-note svg { flex-shrink: 0; margin-top: 2px; }

.bgr-privacy-note a {
    color: var(--bgr-primary);
    text-decoration: none;
}
.bgr-privacy-note a:hover { text-decoration: underline; }

/* ─────────────────────────────────────────
   WORKSPACE
───────────────────────────────────────── */
.bgr-workspace {
    background: var(--bgr-bg);
    padding: 2rem 1.5rem 3rem;
}

.bgr-workspace__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 300px;
    grid-template-rows: auto 1fr;
    gap: 1.25rem;
    grid-template-areas:
        "header header"
        "canvas sidebar";
    position: relative;
}

/* Processing Overlay */
.bgr-processing {
    grid-area: canvas;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background: var(--bgr-surface);
    border-radius: var(--bgr-radius-lg);
    padding: 3rem;
    min-height: 360px;
    border: 1px solid var(--bgr-border);
    box-shadow: var(--bgr-shadow-md);
}

.bgr-spinner-svg {
    width: 52px;
    height: 52px;
    animation: bgr-spin 1s linear infinite;
}

.bgr-spinner-svg circle {
    stroke: var(--bgr-primary);
    stroke-linecap: round;
    stroke-dasharray: 80;
    stroke-dashoffset: 60;
    animation: bgr-dash 1.5s ease-in-out infinite;
}

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

@keyframes bgr-dash {
    0%   { stroke-dashoffset: 80; }
    50%  { stroke-dashoffset: 20; }
    100% { stroke-dashoffset: 80; }
}

.bgr-processing__label {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--bgr-text);
    margin: 0;
}

.bgr-processing__progress {
    width: 240px;
    height: 6px;
    background: var(--bgr-border);
    border-radius: var(--bgr-radius-full);
    overflow: hidden;
}

.bgr-processing__progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--bgr-primary), var(--bgr-primary-light));
    border-radius: var(--bgr-radius-full);
    transition: width 0.3s ease;
    width: 0%;
}

.bgr-processing__step {
    font-size: 0.82rem;
    color: var(--bgr-text-muted);
    margin: 0;
}

/* Workspace Header */
.bgr-workspace__header {
    grid-area: header;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.bgr-workspace__tabs {
    display: flex;
    background: var(--bgr-surface-2);
    border-radius: var(--bgr-radius-full);
    padding: 3px;
    gap: 2px;
    border: 1px solid var(--bgr-border);
}

.bgr-tab {
    padding: 0.4rem 1.1rem;
    border-radius: var(--bgr-radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--bgr-text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--bgr-transition);
    font-family: var(--bgr-font);
}

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

.bgr-tab.active {
    background: var(--bgr-surface);
    color: var(--bgr-primary);
    box-shadow: var(--bgr-shadow-sm);
}

.bgr-tab:focus-visible {
    outline: 3px solid var(--bgr-primary);
    outline-offset: 2px;
}

.bgr-workspace__actions {
    margin-left: auto;
    display: flex;
    gap: 0.6rem;
    align-items: center;
}

/* Canvas Area */
.bgr-canvas-area {
    grid-area: canvas;
}

.bgr-panel {
    background: var(--bgr-surface);
    border-radius: var(--bgr-radius-lg);
    border: 1px solid var(--bgr-border);
    overflow: hidden;
    box-shadow: var(--bgr-shadow-md);
}

.bgr-canvas-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    min-height: 360px;
    background:
        linear-gradient(45deg, #e0e0e0 25%, transparent 25%),
        linear-gradient(-45deg, #e0e0e0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e0e0e0 75%),
        linear-gradient(-45deg, transparent 75%, #e0e0e0 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    background-color: #ffffff;
}

@media (prefers-color-scheme: dark) {
    .bgr-canvas-wrap {
        background-color: #1a1d27;
        background-image:
            linear-gradient(45deg, #22263a 25%, transparent 25%),
            linear-gradient(-45deg, #22263a 25%, transparent 25%),
            linear-gradient(45deg, transparent 75%, #22263a 75%),
            linear-gradient(-45deg, transparent 75%, #22263a 75%);
    }
}

.dark-mode .bgr-canvas-wrap {
    background-color: #1a1d27;
    background-image:
        linear-gradient(45deg, #22263a 25%, transparent 25%),
        linear-gradient(-45deg, #22263a 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #22263a 75%),
        linear-gradient(-45deg, transparent 75%, #22263a 75%);
}

#resultCanvas,
#originalCanvas,
#compareResultCanvas {
    max-width: 100%;
    max-height: 520px;
    width: auto;
    height: auto;
    border-radius: var(--bgr-radius-sm);
    display: block;
}

/* Compare Panel */
.bgr-compare-wrap {
    display: grid;
    grid-template-columns: 1fr 2px 1fr;
    min-height: 360px;
}

.bgr-compare__side {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background:
        linear-gradient(45deg, #e0e0e0 25%, transparent 25%),
        linear-gradient(-45deg, #e0e0e0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e0e0e0 75%),
        linear-gradient(-45deg, transparent 75%, #e0e0e0 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    background-color: #ffffff;
}

@media (prefers-color-scheme: dark) {
    .bgr-compare__side {
        background-color: #1a1d27;
        background-image:
            linear-gradient(45deg, #22263a 25%, transparent 25%),
            linear-gradient(-45deg, #22263a 25%, transparent 25%),
            linear-gradient(45deg, transparent 75%, #22263a 75%),
            linear-gradient(-45deg, transparent 75%, #22263a 75%);
    }
}

.bgr-compare__label {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(0,0,0,0.55);
    color: #fff;
    padding: 0.2rem 0.6rem;
    border-radius: var(--bgr-radius-full);
    backdrop-filter: blur(4px);
}

.bgr-compare__divider {
    background: var(--bgr-border);
    width: 2px;
}

/* ─────────────────────────────────────────
   SIDEBAR
───────────────────────────────────────── */
.bgr-sidebar {
    grid-area: sidebar;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.bgr-sidebar__section {
    background: var(--bgr-surface);
    border-radius: var(--bgr-radius-lg);
    padding: 1.25rem;
    border: 1px solid var(--bgr-border);
    box-shadow: var(--bgr-shadow-sm);
}

.bgr-sidebar__heading {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--bgr-text-muted);
    margin: 0 0 1rem;
    padding-bottom: 0.65rem;
    border-bottom: 1px solid var(--bgr-border);
}

/* Background Options */
.bgr-bg-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.bgr-bg-opt {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    padding: 0.6rem 0.3rem;
    border-radius: var(--bgr-radius-md);
    border: 2px solid var(--bgr-border);
    background: var(--bgr-surface-2);
    cursor: pointer;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--bgr-text-muted);
    transition: all var(--bgr-transition);
    font-family: var(--bgr-font);
}

.bgr-bg-opt:hover {
    border-color: var(--bgr-primary);
    color: var(--bgr-primary);
    background: var(--bgr-primary-ultra);
}

.bgr-bg-opt.active {
    border-color: var(--bgr-primary);
    background: var(--bgr-primary-ultra);
    color: var(--bgr-primary);
    box-shadow: 0 0 0 3px rgba(26,115,232,0.12);
}

.bgr-bg-opt:focus-visible {
    outline: 3px solid var(--bgr-primary);
    outline-offset: 2px;
}

.bgr-bg-opt__icon {
    width: 28px;
    height: 28px;
    border-radius: var(--bgr-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.bgr-bg-opt__icon--transparent {
    background:
        linear-gradient(45deg, #ccc 25%, transparent 25%),
        linear-gradient(-45deg, #ccc 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #ccc 75%),
        linear-gradient(-45deg, transparent 75%, #ccc 75%);
    background-size: 8px 8px;
    background-position: 0 0, 0 4px, 4px -4px, -4px 0px;
    background-color: #fff;
    border: 1px solid var(--bgr-border);
}

.bgr-bg-opt__icon--color {
    background: linear-gradient(135deg, #EA4335, #FBBC04, #34A853, #1A73E8);
    border: 1px solid var(--bgr-border);
}

.bgr-bg-opt__icon--blur {
    background: linear-gradient(135deg, #b0c4de, #87ceeb);
    filter: blur(1px);
    border: 1px solid var(--bgr-border);
}

.bgr-bg-opt__icon--image {
    background: var(--bgr-surface-2);
    border: 1px solid var(--bgr-border);
    color: var(--bgr-text-muted);
}

/* Color Picker */
.bgr-color-picker { margin-top: 0.5rem; }

.bgr-color-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.75rem;
}

input[type="color"] {
    width: 40px;
    height: 40px;
    border: 2px solid var(--bgr-border);
    border-radius: var(--bgr-radius-sm);
    cursor: pointer;
    padding: 2px;
    background: var(--bgr-surface);
    flex-shrink: 0;
}

input[type="color"]:focus-visible {
    outline: 3px solid var(--bgr-primary);
    outline-offset: 2px;
}

.bgr-hex-input {
    flex: 1;
    padding: 0.5rem 0.7rem;
    border: 1.5px solid var(--bgr-border);
    border-radius: var(--bgr-radius-sm);
    font-size: 0.85rem;
    font-family: var(--bgr-font-mono);
    background: var(--bgr-surface);
    color: var(--bgr-text);
    transition: border-color var(--bgr-transition);
}

.bgr-hex-input:focus {
    outline: none;
    border-color: var(--bgr-primary);
    box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

.bgr-color-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.bgr-swatch {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--bgr-transition);
    padding: 0;
    box-shadow: var(--bgr-shadow-sm);
}

.bgr-swatch:hover {
    transform: scale(1.2);
    border-color: var(--bgr-text);
}

.bgr-swatch:focus-visible {
    outline: 3px solid var(--bgr-primary);
    outline-offset: 2px;
}

/* Range Inputs */
.bgr-range {
    width: 100%;
    height: 5px;
    border-radius: var(--bgr-radius-full);
    background: var(--bgr-border);
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    margin-top: 0.4rem;
}

.bgr-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--bgr-primary);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(26,115,232,0.4);
    transition: all var(--bgr-transition);
    border: 2px solid #fff;
}

.bgr-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 3px 10px rgba(26,115,232,0.5);
}

.bgr-range::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--bgr-primary);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(26,115,232,0.4);
    border: 2px solid #fff;
    transition: all var(--bgr-transition);
}

.bgr-range::-moz-range-track {
    background: var(--bgr-border);
    height: 5px;
    border-radius: var(--bgr-radius-full);
}

.bgr-range:focus-visible {
    box-shadow: 0 0 0 3px rgba(26,115,232,0.2);
}

/* Background Image Presets */
.bgr-bg-presets {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.bgr-bg-preset {
    height: 36px;
    border-radius: var(--bgr-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--bgr-transition);
    padding: 0;
}

.bgr-bg-preset:hover {
    transform: scale(1.06);
    border-color: var(--bgr-text);
    box-shadow: var(--bgr-shadow-md);
}

.bgr-bg-preset.active {
    border-color: var(--bgr-primary);
    box-shadow: 0 0 0 3px rgba(26,115,232,0.25);
}

.bgr-bg-preset:focus-visible {
    outline: 3px solid var(--bgr-primary);
    outline-offset: 2px;
}

/* ─────────────────────────────────────────
   REFINEMENT TOOLS
───────────────────────────────────────── */
.bgr-refine-tools {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.bgr-refine-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 0.5rem;
    border-radius: var(--bgr-radius-md);
    border: 2px solid var(--bgr-border);
    background: var(--bgr-surface-2);
    color: var(--bgr-text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--bgr-transition);
    font-family: var(--bgr-font);
}

.bgr-refine-btn:hover {
    border-color: var(--bgr-primary);
    color: var(--bgr-primary);
    background: var(--bgr-primary-ultra);
}

.bgr-refine-btn.active {
    border-color: var(--bgr-primary);
    background: var(--bgr-primary);
    color: #fff;
    box-shadow: 0 3px 10px rgba(26,115,232,0.35);
}

.bgr-refine-btn:focus-visible {
    outline: 3px solid var(--bgr-primary);
    outline-offset: 2px;
}

.bgr-brush-control {
    margin-bottom: 0.85rem;
}

.bgr-refine-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

/* ─────────────────────────────────────────
   EXPORT OPTIONS
───────────────────────────────────────── */
.bgr-export-options {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-bottom: 1rem;
}

.bgr-export-row {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.bgr-export-row--info {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: var(--bgr-surface-2);
    border-radius: var(--bgr-radius-sm);
    border: 1px solid var(--bgr-border);
}

.bgr-select {
    width: 100%;
    padding: 0.55rem 0.85rem;
    border: 1.5px solid var(--bgr-border);
    border-radius: var(--bgr-radius-sm);
    font-size: 0.85rem;
    font-family: var(--bgr-font);
    background: var(--bgr-surface);
    color: var(--bgr-text);
    cursor: pointer;
    transition: border-color var(--bgr-transition);
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A93B0' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.2rem;
}

.bgr-select:focus {
    outline: none;
    border-color: var(--bgr-primary);
    box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

/* ─────────────────────────────────────────
   HOW IT WORKS SECTION
───────────────────────────────────────── */
.bgr-how {
    padding: 4.5rem 1.5rem;
    background: var(--bgr-surface);
    border-top: 1px solid var(--bgr-border);
    border-bottom: 1px solid var(--bgr-border);
}

.bgr-how__inner {
    max-width: 960px;
    margin: 0 auto;
}

.bgr-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: steps;
    position: relative;
}

/* Connecting line between steps */
.bgr-steps::before {
    content: '';
    position: absolute;
    top: 38px;
    left: calc(16.66% + 1rem);
    right: calc(16.66% + 1rem);
    height: 2px;
    background: linear-gradient(90deg, var(--bgr-primary), var(--bgr-primary-light));
    opacity: 0.25;
    pointer-events: none;
}

.bgr-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    padding-top: 0.5rem;
}

.bgr-step__num {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 22px;
    height: 22px;
    background: var(--bgr-primary);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 800;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    box-shadow: 0 2px 8px rgba(26,115,232,0.4);
}

.bgr-step__icon {
    width: 72px;
    height: 72px;
    background: var(--bgr-primary-ultra);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bgr-primary);
    margin-bottom: 1.25rem;
    border: 2px solid rgba(26,115,232,0.15);
    transition: all var(--bgr-transition);
    flex-shrink: 0;
}

.bgr-step:hover .bgr-step__icon {
    background: var(--bgr-primary);
    color: #fff;
    transform: scale(1.06);
    box-shadow: 0 8px 24px rgba(26,115,232,0.3);
}

.bgr-step h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--bgr-text);
    margin: 0 0 0.5rem;
}

.bgr-step p {
    font-size: 0.88rem;
    color: var(--bgr-text-muted);
    margin: 0;
    line-height: 1.6;
}

/* ─────────────────────────────────────────
   USE CASES SECTION
───────────────────────────────────────── */
.bgr-usecases {
    padding: 4.5rem 1.5rem;
    background: var(--bgr-bg);
}

.bgr-usecases__inner {
    max-width: 1100px;
    margin: 0 auto;
}

.bgr-usecase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.bgr-usecase-card {
    background: var(--bgr-surface);
    border-radius: var(--bgr-radius-lg);
    padding: 1.75rem 1.5rem;
    border: 1px solid var(--bgr-border);
    transition: all var(--bgr-transition);
    box-shadow: var(--bgr-shadow-sm);
}

.bgr-usecase-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--bgr-shadow-lg);
    border-color: rgba(26,115,232,0.2);
}

.bgr-usecase-card__icon {
    width: 52px;
    height: 52px;
    background: var(--bgr-primary-ultra);
    border-radius: var(--bgr-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bgr-primary);
    margin-bottom: 1rem;
    transition: all var(--bgr-transition);
}

.bgr-usecase-card:hover .bgr-usecase-card__icon {
    background: var(--bgr-primary);
    color: #fff;
}

.bgr-usecase-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--bgr-text);
    margin: 0 0 0.5rem;
}

.bgr-usecase-card p {
    font-size: 0.85rem;
    color: var(--bgr-text-muted);
    margin: 0;
    line-height: 1.6;
}

/* ─────────────────────────────────────────
   FAQ SECTION
───────────────────────────────────────── */
.bgr-faq {
    padding: 4.5rem 1.5rem;
    background: var(--bgr-surface);
    border-top: 1px solid var(--bgr-border);
}

.bgr-faq__inner {
    max-width: 760px;
    margin: 0 auto;
}

.bgr-faq__list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.bgr-faq__item {
    background: var(--bgr-surface-2);
    border: 1px solid var(--bgr-border);
    border-radius: var(--bgr-radius-md);
    overflow: hidden;
    transition: border-color var(--bgr-transition), box-shadow var(--bgr-transition);
}

.bgr-faq__item[open],
.bgr-faq__item--open {
    border-color: rgba(26,115,232,0.3);
    box-shadow: var(--bgr-shadow-sm);
}

.bgr-faq__question {
    padding: 1.1rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--bgr-text);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    transition: color var(--bgr-transition), background var(--bgr-transition);
    user-select: none;
}

.bgr-faq__question::-webkit-details-marker { display: none; }

.bgr-faq__question::after {
    content: '';
    width: 18px;
    height: 18px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%238A93B0' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    flex-shrink: 0;
    transition: transform var(--bgr-transition);
}

.bgr-faq__item[open] .bgr-faq__question::after {
    transform: rotate(180deg);
}

.bgr-faq__item[open] .bgr-faq__question {
    color: var(--bgr-primary);
}

.bgr-faq__question:hover {
    background: var(--bgr-primary-ultra);
    color: var(--bgr-primary);
}

.bgr-faq__question:focus-visible {
    outline: 3px solid var(--bgr-primary);
    outline-offset: -3px;
}

.bgr-faq__answer {
    padding: 0 1.25rem 1.1rem;
    animation: bgr-faq-open 0.22s ease;
}

.bgr-faq__answer p {
    font-size: 0.9rem;
    color: var(--bgr-text-muted);
    margin: 0;
    line-height: 1.7;
}

@keyframes bgr-faq-open {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ─────────────────────────────────────────
   TOAST NOTIFICATION
───────────────────────────────────────── */
.bgr-toast {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.75rem 1.4rem;
    border-radius: var(--bgr-radius-full);
    font-size: 0.88rem;
    font-weight: 600;
    font-family: var(--bgr-font);
    box-shadow: var(--bgr-shadow-xl);
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
    white-space: nowrap;
    max-width: calc(100vw - 3rem);
}

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

.bgr-toast--success {
    background: #1e3a2f;
    color: #4ade80;
    border: 1px solid rgba(74,222,128,0.2);
}

.bgr-toast--error {
    background: #3a1e1e;
    color: #f87171;
    border: 1px solid rgba(248,113,113,0.2);
}

.bgr-toast--info {
    background: var(--bgr-surface);
    color: var(--bgr-text);
    border: 1px solid var(--bgr-border);
}

/* ─────────────────────────────────────────
   KEYBOARD SHORTCUT HINT BADGE
───────────────────────────────────────── */
.bgr-shortcut-hint {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.72rem;
    color: var(--bgr-text-light);
    background: var(--bgr-surface-2);
    border: 1px solid var(--bgr-border);
    border-radius: var(--bgr-radius-sm);
    padding: 0.15rem 0.45rem;
    font-family: var(--bgr-font-mono);
}

/* ─────────────────────────────────────────
   RESPONSIVE — TABLET (≤ 900px)
───────────────────────────────────────── */
@media (max-width: 900px) {
    .bgr-hero__inner {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .bgr-hero__subtitle { max-width: 100%; }

    .bgr-hero__features {
        align-items: center;
    }

    .bgr-workspace__inner {
        grid-template-columns: 1fr;
        grid-template-areas:
            "header"
            "canvas"
            "sidebar";
    }

    .bgr-sidebar {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .bgr-steps {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .bgr-steps::before { display: none; }

    .bgr-step {
        flex-direction: row;
        text-align: left;
        align-items: flex-start;
        gap: 1.25rem;
        padding-top: 0;
    }

    .bgr-step__num {
        position: static;
        transform: none;
        flex-shrink: 0;
        margin-top: 0.25rem;
    }

    .bgr-step__icon {
        flex-shrink: 0;
        margin-bottom: 0;
        width: 56px;
        height: 56px;
    }

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

    .bgr-workspace__actions {
        margin-left: 0;
        width: 100%;
        justify-content: flex-end;
    }
}

/* ─────────────────────────────────────────
   RESPONSIVE — MOBILE (≤ 600px)
───────────────────────────────────────── */
@media (max-width: 600px) {
    .bgr-hero {
        padding: 2.5rem 1rem 2rem;
    }

    .bgr-hero__title {
        font-size: 2rem;
    }

    .bgr-hero__upload-card {
        padding: 1.25rem;
    }

    .bgr-dropzone {
        padding: 1.75rem 1rem;
    }

    .bgr-workspace {
        padding: 1.25rem 0.75rem 2rem;
    }

    .bgr-workspace__header {
        flex-wrap: wrap;
        gap: 0.6rem;
    }

    .bgr-workspace__tabs { order: 2; }
    .bgr-workspace__actions { order: 3; }

    .bgr-sidebar {
        grid-template-columns: 1fr;
    }

    .bgr-usecase-grid {
        grid-template-columns: 1fr;
    }

    .bgr-bg-options {
        grid-template-columns: repeat(4, 1fr);
    }

    .bgr-compare-wrap {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 2px 1fr;
    }

    .bgr-compare__divider {
        width: 100%;
        height: 2px;
    }

    .bgr-how,
    .bgr-usecases,
    .bgr-faq {
        padding: 3rem 1rem;
    }

    .bgr-section-title {
        font-size: 1.5rem;
    }

    .bgr-toast {
        bottom: 1rem;
        font-size: 0.82rem;
        padding: 0.65rem 1.1rem;
    }

    .bgr-samples {
        flex-direction: column;
        align-items: flex-start;
    }

    .bgr-refine-actions {
        grid-template-columns: 1fr 1fr;
    }
}

/* ─────────────────────────────────────────
   REDUCED MOTION
───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .bgr-spinner-svg { animation: none; }
    .bgr-spinner-svg circle { animation: none; stroke-dashoffset: 40; }
}

/* ─────────────────────────────────────────
   PRINT STYLES
───────────────────────────────────────── */
@media print {
    .bgr-hero__upload-card,
    .bgr-workspace,
    .bgr-sidebar,
    .bgr-toast { display: none !important; }

    .bgr-hero__text { max-width: 100%; }
}

/* ─────────────────────────────────────────
   FOCUS VISIBLE GLOBAL RESET
───────────────────────────────────────── */
.bg-remover-page *:focus { outline: none; }
.bg-remover-page *:focus-visible {
    outline: 3px solid var(--bgr-primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ─────────────────────────────────────────
   SCROLLBAR (Webkit)
───────────────────────────────────────── */
.bg-remover-page ::-webkit-scrollbar { width: 6px; height: 6px; }
.bg-remover-page ::-webkit-scrollbar-track { background: var(--bgr-surface-2); }
.bg-remover-page ::-webkit-scrollbar-thumb {
    background: var(--bgr-border);
    border-radius: var(--bgr-radius-full);
}
.bg-remover-page ::-webkit-scrollbar-thumb:hover { background: var(--bgr-primary-light); }

/* ─────────────────────────────────────────
   SELECTION COLOR
───────────────────────────────────────── */
.bg-remover-page ::selection {
    background: rgba(26,115,232,0.2);
    color: var(--bgr-text);
}



/* ADD THIS NEW RULE */
#uploadBtn {
    position: relative;
    z-index: 10;
    pointer-events: all;
}

#urlInputWrap,
#urlInputWrap * {
    position: relative;
    z-index: 10;
    pointer-events: all;
}

.bgr-sample-thumb {
    position: relative;
    z-index: 10;
    pointer-events: all;
}



/* ── Upload Actions Row ── */
.bgr-upload-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.bgr-dropzone__hint-sub {
    font-size: 0.8rem;
    color: var(--bgr-text-light);
    margin: 0.3rem 0 0;
}

/* URL input wrap — shown below actions */
.bgr-url-input-wrap {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.85rem;
    align-items: center;
}

/* Remove pointer cursor from dropzone — it's no longer clickable */
.bgr-dropzone {
    cursor: default !important;
}