/* Layer Masking System Styles */

.mask-zoom-btn {
    background: linear-gradient(180deg, #2a3340, #1f2632);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 6px;
    color: #c9d1d9;
    font-size: 18px;
    font-weight: 600;
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}


.mask-zoom-btn:active {
    box-shadow: none;
}

.mask-editor-overlay {
    position: fixed;
    inset: 0;
    background: rgba(11, 14, 20, 0.96);
    z-index: 10003;
    display: none;
    align-items: center;
    justify-content: center;
    animation: maskFadeIn 0.3s ease;
    overflow: hidden;
}

@keyframes maskFadeIn {
    from { }
    to { }
}

.mask-editor-panel {
    background: linear-gradient(180deg, #1a1f2a, #0f141b);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    width: 94%;
    max-width: 1200px;
    height: 96%;
    max-height: 96%;
    display: flex;
    flex-direction: column;
    color: #e6edf3;
    overflow: hidden;
}

.mask-editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: clamp(8px, 1.5vh, 16px) clamp(12px, 2vw, 20px);
    background: linear-gradient(180deg, rgba(26, 31, 42, 0.95), rgba(15, 20, 27, 0.95));
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    flex-shrink: 0;
}

.mask-editor-header h3 {
    margin: 0;
    font-size: clamp(14px, 2vh, 20px);
    font-weight: 600;
    color: #58a6ff;
}

.mask-close-btn {
    background: linear-gradient(#2a2f3a, #1f2430);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #e6edf3;
    font-size: 18px;
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}


.mask-editor-controls {
    display: flex;
    flex-direction: column;
    gap: clamp(6px, 1vh, 10px);
    padding: clamp(6px, 1vh, 12px) clamp(12px, 2vw, 20px);
    background: rgba(13, 17, 23, 0.6);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    flex: 0 0 auto;
    overflow: visible;
}

.mask-editor-controls > * {
    flex-shrink: 0;
}

.mask-mode-toggle {
    display: flex;
    gap: 10px;
    background: rgba(0, 0, 0, 0.3);
    padding: 6px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.mask-mode-toggle label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
}

.mask-mode-toggle input[type="radio"] {
    display: none;
}

.mask-mode-toggle input[type="radio"]:checked + span {
    color: #fff;
}

.mask-mode-toggle label:has(input:checked) {
    background: linear-gradient(135deg, #58a6ff, #1a7cff);
    box-shadow: 0 2px 8px rgba(88, 166, 255, 0.3);
}

.mask-mode-toggle label:not(:has(input:checked)) {
    background: transparent;
    color: #8b949e;
}


.mask-shape-tools {
    display: flex;
    gap: 8px;
}

.mask-tool-btn {
    background: linear-gradient(#2a2f3a, #1f2430);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: #e6edf3;
    font-size: 24px;
    width: 48px;
    height: 48px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}


.mask-actions {
    display: flex;
    gap: 8px;
    margin-left: auto;
}

.mask-action-btn {
    background: linear-gradient(#2a2f3a, #1f2430);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #e6edf3;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
}


.mask-action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: linear-gradient(#1a1f2a, #141921);
}

.mask-canvas-container {
    flex: 1 1 0;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(6px, 1vh, 16px);
    background: rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.mask-editor-canvas {
    max-width: 100%;
    max-height: 100%;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    background: #000;
}

.mask-editor-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: clamp(8px, 1.5vh, 16px) clamp(12px, 2vw, 20px);
    background: linear-gradient(180deg, rgba(15, 20, 27, 0.95), rgba(13, 17, 23, 0.95));
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    flex-shrink: 0;
}

.mask-cancel-btn,
.mask-apply-btn {
    padding: clamp(8px, 1.2vh, 12px) clamp(16px, 2vw, 24px);
    border-radius: 10px;
    font-size: clamp(13px, 1.5vh, 15px);
    font-weight: 600;
    cursor: pointer;
    border: 1px solid;
}

.mask-cancel-btn {
    background: linear-gradient(#2a2f3a, #1f2430);
    border-color: rgba(255, 255, 255, 0.1);
    color: #8b949e;
}


.mask-apply-btn {
    background: linear-gradient(135deg, #4caf50, #2e7d32);
    border-color: rgba(76, 175, 80, 0.5);
    color: #fff;
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}


/* Layer item mask button */
.layer-mask-btn {
    background: linear-gradient(#1f2733, #151b24);
    color: #8b949e;
    border: 1px solid rgba(255, 255, 255, 0.14);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    opacity: 0.6;
}

.layer-mask-btn.has-mask {
    opacity: 1;
    color: #e6edf3;
}


.layer-mask-btn.active {
    background: linear-gradient(135deg, #58a6ff, #1a7cff);
    border-color: rgba(88, 166, 255, 0.6);
    box-shadow: 0 0 12px rgba(88, 166, 255, 0.3);
    color: #fff;
    opacity: 1;
}

/* Mask control buttons row */
.layer-mask-controls {
    animation: maskControlsSlideIn 0.3s ease;
}

@keyframes maskControlsSlideIn {
    from { }
    to { }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.mask-control-btn {
    background: linear-gradient(#2a2f3a, #1f2430);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #e6edf3;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
}


.mask-create-btn {
    background: linear-gradient(135deg, #7b61ff, #4a33d1);
    border-color: rgba(123, 97, 255, 0.5);
    color: #fff;
}


.mask-clear-btn {
    color: #ff7b72;
    border-color: rgba(255, 123, 114, 0.3);
}


/* Smart Select Button */
.mask-mode-btn {
    padding: 10px 16px;
    background: linear-gradient(180deg, #2a3340, #1f2632);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    color: #c9d1d9;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
}