:root{--color-primary: #1976d2;--color-primary-dark: #1565c0;--color-primary-light: #42a5f5;--color-success: #2e7d32;--color-success-dark: #1b5e20;--color-error: #d32f2f;--color-error-dark: #c62828;--color-background: #f5f5f5;--color-surface: #ffffff;--color-surface-variant: #f8f9fa;--color-text-primary: #212121;--color-text-secondary: #757575;--color-border: #e0e0e0;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1);--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 3rem}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background-color:var(--color-background);color:var(--color-text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app-container{min-height:100vh;display:flex;flex-direction:column}.app-header{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;box-shadow:var(--shadow-md);position:sticky;top:0;z-index:100}.header-content{max-width:1200px;margin:0 auto;padding:var(--spacing-xs) var(--spacing-sm);display:flex;justify-content:space-between;align-items:center;gap:var(--spacing-sm);flex-wrap:wrap}.app-title{font-size:var(--font-size-xl);font-weight:600;letter-spacing:-.5px}.header-actions{display:flex;gap:var(--spacing-sm)}.app-main{flex:1;max-width:1200px;width:100%;margin:0 auto;padding:var(--spacing-sm)}.main-content{display:flex;flex-direction:column;gap:var(--spacing-sm)}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;gap:var(--spacing-md);color:var(--color-text-secondary)}.loading-spinner{width:48px;height:48px;border:4px solid var(--color-border);border-top-color:var(--color-primary);border-radius:var(--radius-full);animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.timer-card,.entry-card,.results-card{background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--spacing-sm);box-shadow:var(--shadow-md)}.timer-card{text-align:center}.timer-label{font-size:var(--font-size-sm);text-transform:uppercase;letter-spacing:1px;color:var(--color-text-secondary);margin-bottom:var(--spacing-sm)}.timer-display{font-size:var(--font-size-3xl);font-weight:700;color:var(--color-primary);font-variant-numeric:tabular-nums;letter-spacing:2px;margin-bottom:var(--spacing-xs)}.start-time{font-size:var(--font-size-lg);color:var(--color-text-secondary)}.number-display-container{display:flex;align-items:center;gap:var(--spacing-xs);margin-bottom:var(--spacing-sm)}.current-number{flex:1;font-size:var(--font-size-xl);font-weight:600;padding:var(--spacing-xs);background:var(--color-surface-variant);border:2px solid var(--color-border);border-radius:var(--radius-md);text-align:center;min-height:40px;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;touch-action:manipulation;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}.numpad{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-xs);max-width:250px;margin:0 auto}.numpad-btn{aspect-ratio:1;font-size:var(--font-size-xl);font-weight:600;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease;box-shadow:var(--shadow-sm);min-height:55px;touch-action:manipulation;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}.numpad-btn:hover:not(:disabled){background:var(--color-primary-dark);box-shadow:var(--shadow-md);transform:translateY(-2px)}.numpad-btn:active:not(:disabled){transform:translateY(0);box-shadow:var(--shadow-sm)}.numpad-btn:disabled{opacity:.5;cursor:not-allowed}.numpad-zero{grid-column:2}.btn{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--font-size-sm);font-weight:500;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease;box-shadow:var(--shadow-sm);white-space:nowrap;touch-action:manipulation;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}.btn:hover:not(:disabled){box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn:active:not(:disabled){transform:translateY(0)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn-success{background:var(--color-success);color:#fff}.btn-success:hover:not(:disabled){background:var(--color-success-dark)}.btn-error{background:var(--color-error);color:#fff}.btn-error:hover:not(:disabled){background:var(--color-error-dark)}.btn-secondary{background:var(--color-surface-variant);color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-border)}.btn-icon-only{padding:var(--spacing-sm);background:var(--color-surface-variant);color:var(--color-text-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;touch-action:manipulation;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}.btn-icon-only:hover:not(:disabled){background:var(--color-border);color:var(--color-text-primary)}.btn-icon{font-family:Material Icons;font-weight:400;font-style:normal;font-size:24px;line-height:1;letter-spacing:normal;text-transform:none;display:inline-block;white-space:nowrap;word-wrap:normal;direction:ltr;-webkit-font-feature-settings:"liga";font-feature-settings:"liga";-webkit-font-smoothing:antialiased}.results-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-md);gap:var(--spacing-sm);flex-wrap:wrap}.results-title{font-size:var(--font-size-xl);font-weight:600;margin:0}.copy-notification{position:fixed;top:20px;right:20px;background:var(--color-success);color:#fff;padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-md);box-shadow:var(--shadow-xl);opacity:0;transform:translateY(-20px);transition:all .3s ease;pointer-events:none;z-index:1000}.copy-notification.show{opacity:1;transform:translateY(0)}.table-container{position:relative;overflow-x:auto}.results-table{width:100%;border-collapse:collapse}.results-table th{text-align:left;padding:var(--spacing-sm);font-weight:600;border-bottom:2px solid var(--color-border);font-size:var(--font-size-sm);text-transform:uppercase;letter-spacing:.5px;color:var(--color-text-secondary)}.results-table td{padding:var(--spacing-md) var(--spacing-sm);border-bottom:1px solid var(--color-border);font-size:var(--font-size-base)}.results-table tbody tr:hover{background:var(--color-surface-variant)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-xl);color:var(--color-text-secondary);text-align:center;gap:var(--spacing-sm)}.empty-icon{font-family:Material Icons;font-size:64px;opacity:.3}@media (max-width: 640px){.app-title{font-size:var(--font-size-xl)}.header-content{padding:var(--spacing-sm)}.timer-display{font-size:var(--font-size-3xl)}.current-number{font-size:var(--font-size-2xl);min-height:60px}.numpad-btn{font-size:var(--font-size-xl);min-height:60px}.btn-text{display:none}.results-table td,.results-table th{padding:var(--spacing-xs);font-size:var(--font-size-sm)}}@media (min-width: 641px){.timer-display{font-size:4.5rem}}@font-face{font-family:Material Icons;font-style:normal;font-weight:400;src:url(https://fonts.gstatic.com/s/materialicons/v139/flUhRq6tzZclQEJ-Vdg-IuiaDsNc.woff2) format("woff2")}