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

:root {
    --primary-color: #4a90e2;
    --primary-hover: #357abd;
    --secondary-color: #6c757d;
    --secondary-hover: #5a6268;
    --background: #f5f7fa;
    --surface: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
    --overlay-color: rgba(0, 0, 0, 0.5);
    --crop-border: #4a90e2;
    --crop-handle: #ffffff;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    _max-width: 1400px;
    _margin: 0 auto;
    _padding: 20px;
    height: 100vh;
    overflow: hidden;
}

.header {
    margin-bottom: 30px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    flex: 1;
    text-align: center;
}

.btn-icon {
    padding: 10px;
    min-width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon .icon {
    width: 24px;
    height: 24px;
    stroke: currentColor;
}

.editor-container {
    background: var(--surface);
    _border-radius: 12px;
    _box-shadow: var(--shadow-lg);
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Область загрузки */
.upload-area {
    padding: 20px 20px;
    text-align: center;
    border: 3px dashed var(--border-color);
    border-radius: 12px;
    margin: 20px;
    background: var(--background);
    transition: all 0.3s ease;
    cursor: pointer;
    flex-grow: 1;
    height: 100%;
    overflow: auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: rgba(74, 144, 226, 0.05);
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background: rgba(74, 144, 226, 0.1);
    transform: scale(1.02);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.upload-icon {
    width: 64px;
    height: 64px;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.upload-area:hover .upload-icon {
    transform: translateY(-5px);
    color: var(--primary-color);
}

.upload-text {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.upload-hint {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 10px;
}

/* Кнопки */
.btn {
    padding: 12px 14px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow);
}

.btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translateY(0);
}

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

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: var(--secondary-hover);
}

.btn-small {
    padding: 8px 10px;
    font-size: 0.9rem;
}

.btn.active {
    background: var(--primary-hover);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Область редактора */
.editor-wrapper {
    _display: flex;
    _flex-direction: column;
    _gap: 20px;
    _padding: 20px;
    flex-grow: 1;
    overflow: auto;
}

.canvas-container {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #1a1a1a;
    _border-radius: 8px;
    padding: 20px;
    min-height: 400px;
    overflow: auto;
}

.canvas-wrapper {
    position: relative;
    display: inline-block;
    box-shadow: var(--shadow-lg);
    border-radius: 4px;
    overflow: hidden;
}

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

/* Overlay для обрезки */
.crop-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.crop-box {
    position: absolute;
    border: 2px solid var(--crop-border);
    box-shadow: 0 0 0 9999px var(--overlay-color);
    cursor: move;
    pointer-events: all;
}

.crop-handle {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--crop-handle);
    border: 2px solid var(--crop-border);
    border-radius: 50%;
    pointer-events: all;
    z-index: 10;
}

.crop-handle-nw {
    top: -6px;
    left: -6px;
    cursor: nw-resize;
}

.crop-handle-ne {
    top: -6px;
    right: -6px;
    cursor: ne-resize;
}

.crop-handle-sw {
    bottom: -6px;
    left: -6px;
    cursor: sw-resize;
}

.crop-handle-se {
    bottom: -6px;
    right: -6px;
    cursor: se-resize;
}

.crop-handle-n {
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    cursor: n-resize;
}

.crop-handle-s {
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    cursor: s-resize;
}

.crop-handle-w {
    top: 50%;
    left: -6px;
    transform: translateY(-50%);
    cursor: w-resize;
}

.crop-handle-e {
    top: 50%;
    right: -6px;
    transform: translateY(-50%);
    cursor: e-resize;
}

/* Панель инструментов */
.toolbar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px;
    background: var(--background);
    border-radius: 8px;
    max-height: 30vh;
    height: 230px;
    overflow: auto;
}

.toolbar-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toolbar-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.aspect-ratio-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.custom-aspect {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.custom-aspect label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.custom-aspect input {
    width: 60px;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.9rem;
}

.custom-aspect input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.crop-size-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.size-input-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.size-group {
    display: flex;
    flex-direction: row;
    gap: 20px;
}
.size-input-group label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    min-width: 14px;
}

.size-input-group input {
    flex: 1;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.9rem;
    max-width: 80px;
}

.size-input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.size-input-group .unit {
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-width: 25px;
}

.rotation-controls {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.zoom-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.zoom-controls input[type="range"] {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
}

.zoom-controls input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.zoom-controls input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--primary-hover);
    transform: scale(1.2);
}

.zoom-controls input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.zoom-controls input[type="range"]::-moz-range-thumb:hover {
    background: var(--primary-hover);
    transform: scale(1.2);
}

.zoom-value {
    min-width: 50px;
    text-align: center;
    font-weight: 500;
    color: var(--text-primary);
}

.action-controls {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Адаптивность */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }

    .header h1 {
        font-size: 2rem;
    }

    .btn-icon {
        align-self: flex-end;
    }

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

    .canvas-container {
        padding: 10px;
    }

    .upload-area {
        padding: 60px 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    .header-content {
        gap: 10px;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .btn-icon {
        min-width: 40px;
        height: 40px;
        padding: 8px;
    }

    .btn-icon .icon {
        width: 20px;
        height: 20px;
    }

    .aspect-ratio-controls,
    .rotation-controls {
        flex-direction: column;
    }

    .btn-small {
        width: 100%;
    }
}

/* Анимации */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.editor-wrapper {
    animation: fadeIn 0.3s ease;
}