/* --------------------------------------------------------
   COLOR VARIABLES
-------------------------------------------------------- */
:root {
    --cpe-bg: #ffffff;
    --cpe-bg-muted: #f9fafb;
    --cpe-bg-panel: #18181e;
    --cpe-bg-panel-alt: #22222b;
    --cpe-bg-highlight: #2a2a35;
    --cpe-bg-chip: #0e0e12;

    --cpe-text: #111827;
    --cpe-text-muted: #6b7280;
    --cpe-text-label: #e5e7ff;
    --cpe-text-meta: #9ca3af;
    --cpe-text-meta-hover: #e5e7eb;
    --cpe-text-chip: #9ca3af;

    --cpe-primary: #1962ff;
    --cpe-primary-soft: rgba(79, 70, 229, 0.08);
    --cpe-primary-contrast: #ffffff;
    --cpe-secondary: #4b5563;
    --cpe-success: #16a34a;

    --cpe-error-bg: #fef2f2;
    --cpe-error-border: #fecaca;
    --cpe-error-text: #b91c1c;

    --cpe-border-strong: #111116;
    --cpe-border-soft: #e5e7eb;

    --cpe-swatch-bar-bg: #111827;
    --cpe-swatch-border: #111116;

    --cpe-copy-bg: #374151;
    --cpe-copy-bg-hover: #111827;
    --cpe-accent-pos: #22c55e;
    --cpe-accent-neg: #ef4444;

    --cpe-toast-bg: rgba(15, 23, 42, 0.94);

    --cpe-radius-sm: 4px;
    --cpe-radius-md: 6px;
    --cpe-radius-lg: 12px;

    --cpe-shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.12);
    --cpe-shadow-elevated: 0 18px 45px rgba(15, 23, 42, 0.24);

    --cpe-transition-fast: 150ms ease-out;
    --cpe-transition-med: 200ms ease-out;
}

/* --------------------------------------------------------
   LAYOUT & CONTAINER
-------------------------------------------------------- */
.cpe-wrapper {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1.75rem 1.75rem 1.5rem;
    border-radius: var(--cpe-radius-lg);
    background: var(--cpe-bg);
    box-shadow: var(--cpe-shadow-soft);
    font-family: "Figtree", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    border: 1px solid var(--cpe-border-soft);
}

#rgber {
    min-height: 100vh;
    background: radial-gradient(circle at top left, #27272f 0, #050509 55%);
    font-family: "Figtree", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    padding: 2rem 1rem;
}

#rgber .cpe-wrapper {
    max-width: 960px;
    background: var(--cpe-bg-panel-alt);
    border: 1px solid rgba(148, 163, 184, 0.24);
    box-shadow: var(--cpe-shadow-elevated);
}

/* Titles / text */
.cpe-title {
    font-size: 1.45rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
    letter-spacing: 0.01em;
    color: #f9fafb;
}

.cpe-description {
    margin-bottom: 1.5rem;
    color: var(--cpe-text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

#rgber .cpe-description {
    color: #9ca3af;
}

.cpe-form {
    margin-bottom: 1.5rem;
}

/* --------------------------------------------------------
   UPLOAD AREA
-------------------------------------------------------- */

/* Hide the real file input */
.cpe-file-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0;
    height: 0;
}

.cpe-upload-section {
    position: relative;
}

.cpe-upload-label {
    display: block;
    cursor: pointer;
    border-radius: var(--cpe-radius-lg);
    border: 1px dashed rgba(148, 163, 184, 0.6);
    background: radial-gradient(circle at top left, #020617 0, #020617 45%, #020617 100%);
    padding: 0.9rem 1.1rem;
    transition:
        border-color var(--cpe-transition-med),
        background-color var(--cpe-transition-med),
        box-shadow var(--cpe-transition-med),
        transform var(--cpe-transition-med);
}

#rgber .cpe-upload-label {
    background: radial-gradient(circle at top left, #020617 0, #020617 45%, #020617 100%);
}

.cpe-upload-label:hover {
    border-color: rgba(191, 219, 254, 0.95);
    box-shadow: 0 14px 35px rgba(15, 23, 42, 0.6);
    transform: translateY(-1px);
    background: radial-gradient(circle at top left, #020617 0, #020617 35%, #020617 100%);
}

.cpe-upload-inner {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.cpe-upload-icon {
    height: 40px;
    width: 40px;
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #93c5fd;
    flex-shrink: 0;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
}

.cpe-upload-icon i {
    font-size: 1.15rem;
}

.cpe-upload-text {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.cpe-upload-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: #e5e7eb;
}

.cpe-upload-subtitle {
    font-size: 0.78rem;
    color: #9ca3af;
}

.cpe-upload-subtitle span {
    color: #e5e7eb;
    font-weight: 500;
}

/* --------------------------------------------------------
   BUTTONS
-------------------------------------------------------- */
.cpe-submit-btn,
.cpe-download-btn,
.cpe-copy-btn {
    padding: 0.45rem 0.95rem;
    border-radius: 999px;
    border: none;
    background: var(--cpe-primary);
    color: var(--cpe-primary-contrast);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    transition:
        background-color var(--cpe-transition-fast),
        box-shadow var(--cpe-transition-fast),
        transform var(--cpe-transition-fast);
    box-shadow: 0 6px 18px rgba(79, 70, 229, 0.35);
}

.cpe-submit-btn:hover,
.cpe-download-btn:hover {
    background: #4338ca;
    box-shadow: 0 10px 28px rgba(79, 70, 229, 0.4);
    transform: translateY(-1px);
}

.cpe-submit-btn:active,
.cpe-download-btn:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
}

.cpe-submit-btn:focus-visible,
.cpe-download-btn:focus-visible,
.cpe-copy-btn:focus-visible {
    outline: 2px solid var(--cpe-primary);
    outline-offset: 2px;
}

/* Download row */
.cpe-download-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    justify-content: center;
}

/* Download label + select */
.cpe-download-label {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.78rem;
    color: var(--cpe-text-meta);
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    background: var(--cpe-bg-chip);
    border: 1px solid rgba(31, 41, 55, 0.8);
}

.cpe-download-label span {
    white-space: nowrap;
}

.cpe-download-select {
    border-radius: 999px;
    border: 0;
    padding: 0.25rem 0.7rem;
    font-size: 0.78rem;
    background: #020617;
    color: #e5e7eb;
    outline: none;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: linear-gradient(45deg, #e5e7eb 50%, transparent 50%),
        linear-gradient(135deg, #e5e7eb 50%, transparent 50%);
    background-position:
        calc(100% - 12px) 50%,
        calc(100% - 8px) 50%;
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
    padding-right: 1.7rem;
}

.cpe-download-select:focus-visible {
    outline: 1px solid #4f46e5;
    outline-offset: 1px;
}

/* Copy button overrides */
.cpe-copy-btn {
    padding: 0.25rem 0.75rem;
    border-radius: var(--cpe-radius-sm);
    font-size: 0.7rem;
    margin-left: auto;
    width: 96px;
    background: var(--cpe-copy-bg);
    box-shadow: none;
}

.cpe-copy-btn:hover {
    background: var(--cpe-copy-bg-hover);
}

.cpe-copy-btn.cpe-copied {
    background: var(--cpe-success) !important;
    color: #022c22;
}

/* Color controls */
.cpe-color-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 0.9rem;
}

.cpe-color-btn {
    padding: 0.25rem 0.7rem;
    border-radius: var(--cpe-radius-md);
    border: 1px solid var(--cpe-border-strong);
    background: var(--cpe-bg-chip);
    color: var(--cpe-text-chip);
    cursor: pointer;
    font-size: 0.8rem;
    min-width: 2rem;
    text-align: center;
    transition:
        background-color var(--cpe-transition-fast),
        color var(--cpe-transition-fast),
        border-color var(--cpe-transition-fast),
        transform var(--cpe-transition-fast);
}

.cpe-color-btn[disabled] {
    opacity: 0.4;
    cursor: default;
    transform: none;
    box-shadow: none;
}

.cpe-color-btn:not([disabled]):hover {
    transform: translateY(-0.5px);
    border-color: rgba(148, 163, 184, 0.8);
}

.cpe-color-count-label {
    font-size: 0.8rem;
    color: var(--cpe-text-meta);
}

.cpe-color-btn:last-child:not([disabled]):hover {
    background: var(--cpe-accent-pos);
    color: #022c22;
}

.cpe-color-btn:first-child:not([disabled]):hover {
    background: var(--cpe-accent-neg);
    color: #450a0a;
}

/* --------------------------------------------------------
   UPLOADED IMAGE
-------------------------------------------------------- */
.cpe-uploaded-image {
    text-align: center;
    margin-bottom: 0.85rem;
}

.cpe-uploaded-image img {
    max-width: 100%;
    max-height: 420px;
    object-fit: contain;
    border-radius: var(--cpe-radius-lg);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.35);
}

/* --------------------------------------------------------
   SWATCH BAR
-------------------------------------------------------- */
.cpe-swatch-bar {
    width: 100%;
    max-width: 520px;
    margin: 0 auto 0.6rem;
    border-radius: var(--cpe-radius-md);
    border: 1px solid var(--cpe-swatch-border);
    overflow: hidden;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background: radial-gradient(circle at top, #1f2937 0, #020617 65%);
}

/* Thin gradient band */
.cpe-swatch-bar--gradient {
    height: 12px;
    opacity: 0;
    transform: translateY(4px);
    animation: cpeFadeUp 0.35s ease-out forwards;
}

/* Segmented bar below */
.cpe-swatch-bar--segments {
    height: 32px;
    margin-bottom: 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    opacity: 0;
    transform: translateY(6px);
    animation: cpeFadeUp 0.35s ease-out forwards;
    animation-delay: 0.06s;
}

/* Individual segments */
.cpe-swatch-bar-segment {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    transition: transform var(--cpe-transition-fast);
}

.cpe-swatch-bar-segment:hover {
    transform: scaleY(1.06);
}

.cpe-swatch-bar-segment:nth-child(1) { animation-delay: 0.03s; }
.cpe-swatch-bar-segment:nth-child(2) { animation-delay: 0.06s; }
.cpe-swatch-bar-segment:nth-child(3) { animation-delay: 0.09s; }
.cpe-swatch-bar-segment:nth-child(4) { animation-delay: 0.12s; }
.cpe-swatch-bar-segment:nth-child(5) { animation-delay: 0.15s; }
.cpe-swatch-bar-segment:nth-child(6) { animation-delay: 0.18s; }
.cpe-swatch-bar-segment:nth-child(7) { animation-delay: 0.21s; }
.cpe-swatch-bar-segment:nth-child(8) { animation-delay: 0.24s; }

/* Highlighted swatch row background */
.cpe-swatch--highlight {
    background: var(--cpe-bg-highlight);
}

/* --------------------------------------------------------
   SWATCH LIST & ROWS
-------------------------------------------------------- */
.cpe-swatches {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Individual swatch row */
.cpe-swatch {
    display: flex;
    align-items: center;
    width: 100%;
    color: var(--cpe-text);
    opacity: 0;
    transform: translateY(6px);
    animation: cpeFadeUp 0.35s ease-out forwards;
    padding: 0.75rem 1.1rem;
    border-radius: var(--cpe-radius-md);
    background: var(--cpe-bg-panel);
    border: 1px solid rgba(148, 163, 184, 0.28);
    transition:
        box-shadow var(--cpe-transition-med),
        transform var(--cpe-transition-med),
        border-color var(--cpe-transition-med),
        background-color var(--cpe-transition-med);
}

.cpe-swatch:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 35px rgba(15, 23, 42, 0.38);
    border-color: rgba(191, 219, 254, 0.65);
    background: #111827;
}

/* Slight stagger for rows */
.cpe-swatch:nth-child(1) { animation-delay: 0.10s; }
.cpe-swatch:nth-child(2) { animation-delay: 0.14s; }
.cpe-swatch:nth-child(3) { animation-delay: 0.18s; }
.cpe-swatch:nth-child(4) { animation-delay: 0.22s; }
.cpe-swatch:nth-child(5) { animation-delay: 0.26s; }
.cpe-swatch:nth-child(6) { animation-delay: 0.30s; }
.cpe-swatch:nth-child(7) { animation-delay: 0.34s; }
.cpe-swatch:nth-child(8) { animation-delay: 0.38s; }

.cpe-swatch-label {
    color: var(--cpe-text-label);
    font-weight: 700;
    letter-spacing: 0.02em;
    font-size: 0.78rem;
}

/* Value text */
.cpe-swatch-value {
    text-align: left;
    font-size: 0.78rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Color chip */
.cpe-swatch-color {
    height: 48px;
    width: 48px;
    border-radius: var(--cpe-radius-md);
    border: 1px solid var(--cpe-swatch-border);
    flex-shrink: 0;
}

.cpe-swatch-body {
    flex-grow: 1;
    font-size: 0.78rem;
    line-height: 1.1rem;
    color: #f9fafb;
    padding: 0 1rem;
}

/* Code row / copy row */
.cpe-code-row {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 0;
    width: 100%;
    padding: 2px 6px;
    border-radius: var(--cpe-radius-md);
    color: var(--cpe-text-meta);
    transition:
        background-color var(--cpe-transition-fast),
        color var(--cpe-transition-fast);
}

.cpe-code-row:last-child {
    margin-bottom: 0;
}

.cpe-code-row:hover {
    color: var(--cpe-text-meta-hover);
    background: rgba(148, 163, 184, 0.08);
}

.cpe-code-row:hover .cpe-swatch-label {
    color: var(--cpe-text-meta-hover);
}

/* Copy icon */
.cpe-copy-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: #9ca3af4a;
    flex-shrink: 0;
    width: 18px;
    height: 18px;
}

.cpe-code-row:hover .cpe-copy-icon {
    color: #e5e7eb;
}

/* Remove swatch button */
.cpe-remove-swatch {
    border: 0;
    background: rgba(15, 23, 42, 0.65);
    border-radius: var(--cpe-radius-md);
    height: 26px;
    width: 26px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
    color: var(--cpe-text-chip);
    font-size: 0.9rem;
    transition:
        background-color var(--cpe-transition-fast),
        color var(--cpe-transition-fast),
        transform var(--cpe-transition-fast);
}

.cpe-remove-swatch:hover {
    background: var(--cpe-accent-neg);
    color: #fef2f2;
    transform: translateY(-0.5px);
}

/* --------------------------------------------------------
   ERROR MESSAGE
-------------------------------------------------------- */
.cpe-error {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border-radius: var(--cpe-radius-md);
    background: var(--cpe-error-bg);
    color: var(--cpe-error-text);
    border: 1px solid var(--cpe-error-border);
    font-size: 0.85rem;
}

/* --------------------------------------------------------
   TOAST
-------------------------------------------------------- */
.cpe-copy-toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%) translateY(10px);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    background: var(--cpe-toast-bg);
    color: #e5e7eb;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    opacity: 0;
    pointer-events: none;
    z-index: 9999;
    transition:
        opacity var(--cpe-transition-fast),
        transform var(--cpe-transition-fast),
        box-shadow var(--cpe-transition-fast);
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.6);
}

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

/* --------------------------------------------------------
   ANIMATIONS
-------------------------------------------------------- */
@keyframes cpeFadeUp {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --------------------------------------------------------
   RESPONSIVE TWEAKS
-------------------------------------------------------- */
@media (max-width: 640px) {
    .cpe-wrapper {
        padding: 1.25rem 1.1rem 1.1rem;
        margin: 1.25rem auto;
    }

    .cpe-upload-label {
        padding: 0.8rem 0.9rem;
    }

    .cpe-upload-icon {
        height: 36px;
        width: 36px;
    }

    .cpe-upload-title {
        font-size: 0.85rem;
    }

    .cpe-upload-subtitle {
        font-size: 0.74rem;
    }

    .cpe-swatch {
        padding: 0.7rem 0.8rem;
    }

    .cpe-swatch-color {
        height: 40px;
        width: 40px;
    }

    .cpe-swatch-body {
        padding: 0 0.75rem;
        font-size: 0.76rem;
    }

    .cpe-title {
        font-size: 1.25rem;
    }

    .cpe-copy-toast {
        bottom: 16px;
    }
}