:root{--color-ink-black: #111111;--color-true-black: #000000;--color-muted-grey: #555555;--color-border-soft: #E5E5E5;--color-bg-shell: #F5F5F5;--color-surface: #FFFFFF;--bg-body: var(--color-bg-shell);--bg-surface: var(--color-surface);--text-primary: var(--color-ink-black);--text-muted: var(--color-muted-grey);--border-subtle: var(--color-border-soft);--border-strong: #C7C7C7;--btn-primary-bg: var(--color-ink-black);--btn-primary-text: #FFFFFF;--btn-secondary-bg: var(--color-surface);--btn-secondary-text: var(--color-ink-black);--btn-secondary-border: var(--border-subtle);--focus-ring: 0 0 0 2px rgba(0,0,0,.6);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 2px 8px rgba(0, 0, 0, .08);--shadow-lg: 0 4px 16px rgba(0, 0, 0, .12);--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px}body{margin:0;padding:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Inter,sans-serif;background:var(--bg-body);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}.card{background:var(--bg-surface);border-radius:var(--radius-md);border:1px solid var(--border-subtle);padding:var(--space-md) var(--space-lg);box-shadow:var(--shadow-sm)}.surface{background:var(--bg-surface);border:1px solid var(--border-subtle)}.input,input:not([type=checkbox]):not([type=radio]),textarea,select{background:var(--bg-surface);border-radius:var(--radius-sm);border:1px solid var(--border-subtle);padding:var(--space-sm) 10px;font:inherit;color:var(--text-primary);transition:all .15s 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var(--color-ink-black)}.btn-primary:hover,.primary:hover{opacity:.9;transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-primary:active,.primary:active{opacity:.85;transform:translateY(0)}.btn-primary:disabled,.primary:disabled{opacity:.4;cursor:not-allowed;transform:none}.btn-secondary,.secondary{background:var(--btn-secondary-bg);color:var(--btn-secondary-text);border:1px solid var(--btn-secondary-border)}.btn-secondary:hover,.secondary:hover{background:var(--bg-body);border-color:var(--border-strong)}.btn-secondary:active,.secondary:active{background:#e8e8e8}.btn-ghost{background:transparent;color:var(--text-primary);border:none}.btn-ghost:hover{background:var(--bg-body)}h1,h2,h3,h4,h5,h6{margin:0;font-weight:600;color:var(--text-primary);line-height:1.2}h1{font-size:2.5rem}h2{font-size:2rem}p{margin:0;color:var(--text-primary)}.text-muted,.muted{color:var(--text-muted)}.text-small{font-size:.875rem}.text-tiny{font-size:.75rem}.divider,hr{height:1px;width:100%;background:var(--border-subtle);border:none;margin:var(--space-md) 0}.container{max-width:1200px;margin:0 auto;padding:0 var(--space-lg)}.badge{display:inline-block;padding:4px 10px;border-radius:var(--radius-sm);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.badge-default{background:var(--color-ink-black);color:var(--color-surface)}.badge-outline{background:transparent;color:var(--text-primary);border:1px solid var(--border-strong)}.badge-muted{background:var(--bg-body);color:var(--text-muted)}.spinner,.spinner-large{display:inline-block;width:24px;height:24px;border:3px solid var(--border-subtle);border-top-color:var(--color-ink-black);border-radius:50%;animation:spin .8s linear infinite}.spinner-large{width:48px;height:48px;border-width:4px}.clickable,.interactive{cursor:pointer;transition:all .15s ease}.clickable:hover,.interactive:hover{opacity:.8}.clickable:active,.interactive:active{opacity:.6}*:focus-visible{outline:none;box-shadow:var(--focus-ring)}.mt-md{margin-top:var(--space-md)}.mb-md{margin-bottom:var(--space-md)}.p-md{padding:var(--space-md)}:root{--primary: var(--color-ink-black);--primary-light: #1A1A1A;--secondary: var(--border-subtle);--bg-primary: var(--bg-body);--bg-white: var(--bg-surface);--accent: var(--color-ink-black);--success: var(--color-ink-black);--warning: var(--color-muted-grey);--error: var(--color-ink-black);--grey-50: var(--color-bg-shell);--grey-100: var(--color-bg-shell);--grey-200: var(--border-subtle);--grey-300: var(--border-strong);--grey-400: var(--text-muted);--grey-500: var(--text-muted);--grey-700: var(--text-primary);--space-base: var(--space-md);--space-xxl: var(--space-2xl);--radius-xl: var(--radius-lg);--shadow-base: var(--shadow-sm);--shadow-lg: var(--shadow-lg);--font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-size-xs: 12px;--font-size-sm: 14px;--font-size-base: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-xxl: 24px;--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s 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var(--transition-base)}.card-gradient:hover{opacity:.95;transform:translateY(-2px);box-shadow:var(--shadow-lg)}input[type=text],input[type=email],input[type=password],input[type=number],textarea,select{width:100%;padding:12px;font-size:var(--font-size-base);font-family:var(--font-family);border:1px solid var(--grey-300);border-radius:var(--radius-md);background:var(--bg-white);transition:all var(--transition-fast)}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-ink-black);box-shadow:var(--focus-ring)}input[type=range]{-webkit-appearance:none;width:100%;height:6px;border-radius:var(--radius-sm);background:var(--border-subtle);outline:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--color-ink-black);cursor:pointer;transition:all 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var(--border-strong)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn var(--transition-base) ease-out}.error{padding:var(--space-md);background:var(--bg-surface);border:2px solid var(--color-ink-black);border-radius:var(--radius-md);color:var(--text-primary);font-size:var(--font-size-sm);font-weight:600}.success{padding:var(--space-md);background:var(--color-ink-black);border:1px solid var(--color-ink-black);border-radius:var(--radius-md);color:var(--color-surface);font-size:var(--font-size-sm);font-weight:500}.info{padding:var(--space-md);background:var(--bg-body);border:1px solid 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