/* --- One full-width white card --- */
.ccf-card {
    width: 100%;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--bs-border-color-translucent, rgba(0, 0, 0, 0.06));
    padding: 1.5rem;
    margin-bottom: 2rem;
}

@media (min-width: 576px) {
    .ccf-card {
        padding: 2rem;
    }
}

/* --- Tool content inside card --- */
.ccf-tool {
    --ccf-radius: 14px;
    --ccf-radius-sm: 10px;
    --ccf-gap: 1.25rem;
    --ccf-bg: #fff;
    --ccf-border: 1px solid var(--bs-border-color-translucent, rgba(0, 0, 0, 0.08));
    --ccf-shadow-focus: 0 0 0 3px rgba(13, 110, 253, 0.2);
    --ccf-divider: 1px solid var(--bs-border-color-translucent, rgba(0, 0, 0, 0.08));
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* Input row: picker + hex + actions */
.ccf-input-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
    padding-bottom: 1.25rem;
}

.ccf-picker-wrap {
    flex: 1 1 200px;
    min-width: 0;
}

.ccf-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-muted, #6c757d);
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
}

.ccf-picker-row {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.ccf-picker {
    width: 56px;
    min-width: 56px;
    height: 48px;
    padding: 4px;
    border: var(--ccf-border);
    border-radius: var(--ccf-radius-sm);
    background: var(--ccf-bg);
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.ccf-picker::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.ccf-picker::-webkit-color-swatch {
    border: none;
    border-radius: 6px;
}

.ccf-picker:focus {
    outline: none;
    box-shadow: var(--ccf-shadow-focus);
}

.ccf-hex {
    flex: 1;
    min-width: 0;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    letter-spacing: 0.02em;
    border: var(--ccf-border);
    border-radius: var(--ccf-radius-sm);
    background: var(--ccf-bg);
}

.ccf-hex:focus {
    outline: none;
    border-color: var(--bs-primary, #0d6efd);
    box-shadow: var(--ccf-shadow-focus);
}

.ccf-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.ccf-btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--ccf-radius-sm);
    border: none;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.ccf-btn:active {
    transform: scale(0.98);
}

.ccf-btn-primary {
    background: var(--bs-primary, #0d6efd);
    color: #fff;
}

.ccf-btn-primary:hover {
    filter: brightness(1.05);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.35);
}

.ccf-btn-secondary {
    background: var(--bs-secondary-bg, #e9ecef);
    color: var(--bs-body-color);
}

.ccf-btn-secondary:hover {
    background: var(--bs-tertiary-bg, #dee2e6);
}

/* Pair: two swatches side by side (focus area inside card) */
.ccf-pair {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0;
    align-items: stretch;
    border-radius: var(--ccf-radius);
    overflow: hidden;
    border: var(--ccf-border);
}

.ccf-swatch-wrap {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.ccf-swatch {
    flex: 1;
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.ccf-swatch-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.15);
}

.ccf-swatch-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: #f8f9fa;
    border-top: var(--ccf-border);
}

.ccf-copy-swatch {
    padding: 0.35rem 0.65rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--bs-primary, #0d6efd);
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

.ccf-copy-swatch:hover {
    background: rgba(13, 110, 253, 0.08);
}

.ccf-hex-display {
    font-size: 0.875rem;
    color: var(--text-muted, #6c757d);
    letter-spacing: 0.02em;
}

.ccf-pair-divider {
    width: 1px;
    background: var(--bs-border-color, #dee2e6);
    flex-shrink: 0;
}

@media (max-width: 575px) {
    .ccf-pair {
        grid-template-columns: 1fr;
    }

    .ccf-pair-divider {
        width: 100%;
        height: 3px;
    }

    .ccf-swatch {
        min-height: 120px;
    }
}

/* Details: HEX, RGB, HSL (section with divider) */
.ccf-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding-top: 1.25rem;
    margin-top: 1.25rem;
    border-top: var(--ccf-divider);
}

.ccf-detail-block {
    padding: 0;
}

.ccf-detail-title {
    font-size: 0.875rem;
    font-weight: 700;
    margin: 0 0 0.75rem 0;
    color: var(--bs-body-color);
    letter-spacing: 0.02em;
}

.ccf-detail-list {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.ccf-detail-list div {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.ccf-detail-list dt {
    margin: 0;
    font-weight: 600;
    color: var(--text-muted, #6c757d);
    min-width: 2.5rem;
}

.ccf-detail-list dd {
    margin: 0;
    letter-spacing: 0.02em;
}

@media (max-width: 575px) {
    .ccf-details {
        grid-template-columns: 1fr;
    }
}

/* Color wheel (section with divider) */
.ccf-wheel-wrap {
    text-align: center;
    padding-top: 1.25rem;
    margin-top: 1.25rem;
    border-top: var(--ccf-divider);
}

.ccf-wheel-caption {
    font-size: 0.8125rem;
    color: var(--text-muted, #6c757d);
    margin: 0 0 1rem 0;
}

.ccf-wheel {
    width: 100%;
    max-width: 280px;
    aspect-ratio: 1;
    margin: 0 auto;
    border-radius: 50%;
    position: relative;
    background: conic-gradient(
        from 0deg,
        #ff0000,
        #ff8000,
        #ffff00,
        #80ff00,
        #00ff00,
        #00ff80,
        #00ffff,
        #0080ff,
        #0000ff,
        #8000ff,
        #ff00ff,
        #ff0080,
        #ff0000
    );
}

.ccf-wheel-pointer {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    position: absolute;
    left: 50%;
    top: 50%;
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

@media (max-width: 767px) {
    .ccf-wheel {
        max-width: 220px;
    }

    .ccf-wheel-pointer {
        width: 16px;
        height: 16px;
        border-width: 2px;
    }
}

/* Harmony presets (section with divider) */
.ccf-harmony {
    padding-top: 1.25rem;
    margin-top: 1.25rem;
    border-top: var(--ccf-divider);
}

.ccf-harmony-title {
    font-size: 0.9375rem;
    font-weight: 700;
    margin: 0 0 0.75rem 0;
    color: var(--bs-body-color);
}

.ccf-harmony-scroll {
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.ccf-harmony-card {
    flex: 0 0 auto;
    width: 160px;
    scroll-snap-align: start;
    border: var(--ccf-border);
    border-radius: var(--ccf-radius-sm);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    background: #fff;
}

.ccf-harmony-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

.ccf-harmony-card:active {
    transform: translateY(0);
}

.ccf-harmony-strip {
    height: 56px;
    display: flex;
}

.ccf-harmony-strip span {
    flex: 1;
}

.ccf-harmony-name {
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--bs-body-color);
    text-align: center;
}

/* Tips (section with divider) */
.ccf-tips {
    padding-top: 1.25rem;
    margin-top: 1.25rem;
    border-top: var(--ccf-divider);
}

.ccf-tips-title {
    font-size: 0.9375rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    color: var(--bs-body-color);
}

.ccf-tips-list {
    margin: 0;
    padding-left: 1.25rem;
    font-size: 0.875rem;
    color: var(--text-muted, #6c757d);
    line-height: 1.6;
}

.ccf-tips-list li {
    margin-bottom: 0.35rem;
}

.ccf-tips-list li:last-child {
    margin-bottom: 0;
}

/* Toast */
.ccf-toast {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    padding: 0.65rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #fff;
    background: #212529;
    border-radius: var(--ccf-radius-sm);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    z-index: 1050;
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.ccf-toast[data-visible="true"] {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}