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var(--color-primary);outline-offset:2px}.color-palette__swatch--recent{width:28px;height:28px;flex-shrink:0}.paint-tools{display:flex;flex-direction:column;gap:var(--space-sm)}.paint-tools__group{display:grid;grid-template-columns:repeat(6,1fr);gap:4px}.paint-tools__button{display:inline-flex;align-items:center;justify-content:center;width:100%;height:40px;border:1px solid var(--color-border);border-radius:var(--radius-medium);background:var(--color-bg);color:var(--color-text);cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast)}.paint-tools__button:hover{background:#e8eefc;color:var(--color-primary-hover)}.paint-tools__button.is-active{background:var(--color-primary);border-color:var(--color-primary);color:var(--color-primary-contrast)}.paint-tools__button:focus-visible,.paint-tools__option:focus-visible,.paint-tools__select:focus-visible{outline:3px solid 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16px;border:none;border-radius:var(--radius-medium);background:var(--color-primary);color:var(--color-primary-contrast);font-weight:600;font-size:.9rem;cursor:pointer;transition:background var(--transition-fast)}.load-image__trigger:hover{background:var(--color-primary-hover)}.load-image__trigger:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px}.load-image__menu{position:absolute;top:calc(100% + 6px);right:0;z-index:30;min-width:270px;display:flex;flex-direction:column;gap:4px;padding:var(--space-sm);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-medium);box-shadow:var(--shadow-large)}.load-image__item{display:inline-flex;align-items:center;gap:var(--space-sm);width:100%;padding:8px 10px;border:1px solid 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input{margin-top:2px}.load-image__overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;display:flex;align-items:center;justify-content:center;padding:var(--space-md);background:#0f172a8c}.load-image__dialog{width:min(440px,100%);padding:var(--space-lg);border-radius:var(--radius-large);background:var(--color-surface);box-shadow:var(--shadow-large);display:flex;flex-direction:column;gap:var(--space-md)}.load-image__dialog-title{margin:0;font-size:1.15rem}.load-image__dialog-text{margin:0;color:var(--color-text-secondary)}.load-image__form{display:flex;flex-direction:column;gap:var(--space-sm)}.load-image__label{font-weight:600;font-size:.9rem}.load-image__input{padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-small);font:inherit}.load-image__input:focus-visible{outline:3px solid var(--color-primary);outline-offset:1px}.load-image__dialog-actions{display:flex;justify-content:flex-end;gap:var(--space-sm);margin-top:var(--space-xs)}.load-image__dialog-button{padding:8px 16px;border:1px solid var(--color-border);border-radius:var(--radius-small);background:var(--color-surface);font-weight:600;cursor:pointer;transition:background var(--transition-fast)}.load-image__dialog-button:hover{background:#e8eefc;color:var(--color-primary-hover)}.load-image__dialog-button--primary{background:var(--color-primary);border-color:var(--color-primary);color:var(--color-primary-contrast)}.load-image__dialog-button--primary:hover{background:var(--color-primary-hover);color:var(--color-primary-contrast)}.load-image__dialog-button:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px}:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-contrast: #ffffff;--color-accent: #f59e0b;--color-success: #16a34a;--color-error: #dc2626;--color-warning: #d97706;--color-info: #0284c7;--color-bg: #f4f6fb;--color-surface: #ffffff;--color-surface-elevated: #ffffff;--color-border: #d7dce5;--color-border-strong: #9aa3b2;--color-text: #111827;--color-text-secondary: #4b5563;--color-text-muted: #6b7280;--color-text-inverse: #ffffff;--color-canvas-bg: #e8ebf2;--shadow-small: 0 1px 2px rgba(15, 23, 42, .06);--shadow-medium: 0 4px 12px rgba(15, 23, 42, .1);--shadow-large: 0 12px 32px rgba(15, 23, 42, .16);--radius-small: 6px;--radius-medium: 10px;--radius-large: 16px;--radius-pill: 999px;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--font-sans: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Roboto", "Helvetica Neue", Arial, sans-serif;--transition-fast: .15s ease;--transition-medium: .22s ease}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;min-height:100%}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);line-height:1.5}button,input,select{font:inherit}img{max-width:100%;display:block}#root{min-height:100vh}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);padding:var(--space-md) var(--space-lg);background:var(--color-surface);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-small)}.app-header__brand{display:flex;align-items:center;gap:var(--space-sm);margin:0;font-weight:700;font-size:1.25rem;color:var(--color-text)}.app-header__mark{width:28px;height:28px}.app-header__tagline{color:var(--color-text-muted);font-size:.9rem}.app-header__actions{display:flex;align-items:center;gap:var(--space-sm);flex-wrap:wrap}.app-header__history-button{position:relative;display:inline-flex;align-items:center;gap:var(--space-sm);padding:8px 14px;border:1px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-surface);color:var(--color-text);font-weight:600;font-size:.9rem;cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast),box-shadow var(--transition-fast)}.app-header__history-button:hover{border-color:var(--color-primary);color:var(--color-primary-hover);background:#e8eefc}.app-header__history-button:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px}.app-header__history-button--alert{border-color:var(--color-accent);background:#fffbeb;color:#92400e;box-shadow:0 0 0 3px #f59e0b33}.app-header__history-button--alert:hover{border-color:var(--color-accent);background:#fef3c7;color:#78350f}.app-header__badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;border-radius:var(--radius-pill);background:var(--color-accent);color:#fff;font-size:.72rem;font-weight:700;line-height:1;animation:app-header-badge-pop .24s ease}@keyframes app-header-badge-pop{0%{transform:scale(.5);opacity:0}to{transform:scale(1);opacity:1}}.app-main{flex:1;display:flex;flex-direction:column}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:640px){.app-header{flex-direction:column;align-items:flex-start;padding:var(--space-md)}.app-header__history-label{display:none}}