:root{--color-bg-primary: #ffffff;--color-bg-secondary: #fffef0;--color-text-primary: #000000;--color-text-secondary: #333333;--color-accent: #ff007f;--color-accent-hover: #d6006a;--color-accent-light: #ffe6f2;--color-secondary-accent: #00e5ff;--color-highlight: #fff700;--color-border: #000000;--color-error: #ff3333;--color-warning: #ffaa00;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--radius-sm: 2px;--radius-md: 4px;--radius-lg: 8px;--radius-full: 9999px;--border-width: 2px;--border-style: solid;--shadow-sm: 2px 2px 0px rgba(0, 0, 0, 1);--shadow-md: 4px 4px 0px rgba(0, 0, 0, 1);--shadow-lg: 8px 8px 0px rgba(0, 0, 0, 1);--transition-fast: .1s ease;--transition-normal: .2s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}body{font-family:Helvetica Neue,Arial,Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif;background-color:var(--color-bg-primary);color:var(--color-text-primary);margin:0;padding:0;background-image:radial-gradient(var(--color-border) 1px,transparent 1px);background-size:20px 20px}*{box-sizing:border-box}button{cursor:pointer;font-family:inherit;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.modal-overlay{position:fixed;inset:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn .2s ease-out}.modal-content{background:#fff;border-radius:var(--radius-lg);width:90%;max-width:400px;box-shadow:var(--shadow-xl);border:var(--border-width) solid var(--color-border);display:flex;flex-direction:column;overflow:hidden;animation:slideUp .3s cubic-bezier(.16,1,.3,1)}.modal-header{padding:var(--spacing-md) var(--spacing-lg);border-bottom:var(--border-width) solid var(--color-border);display:flex;justify-content:space-between;align-items:center;background:var(--color-bg-secondary)}.modal-header h3{margin:0;font-size:1.1rem;font-weight:700;color:var(--color-text-primary)}.close-btn{background:none;border:none;padding:4px;cursor:pointer;color:var(--color-text-secondary);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.close-btn:hover{background-color:#0000000d;color:var(--color-text-primary)}.modal-body{padding:var(--spacing-lg);overflow-y:auto;max-height:60vh}.input-group label{font-size:.9rem;font-weight:600;color:var(--color-text-secondary)}.input-group input{padding:var(--spacing-sm) var(--spacing-md);border:var(--border-width) solid var(--color-border);border-radius:var(--radius-md);font-size:1rem;outline:none;transition:border-color .2s}.input-group input:focus{border-color:var(--color-accent);box-shadow:0 0 0 2px var(--color-accent-light)}.error-text{color:var(--color-error);font-size:.85rem;margin-top:4px}.modal-footer{padding:var(--spacing-md) var(--spacing-lg);border-top:var(--border-width) solid var(--color-border);display:flex;justify-content:flex-end;background:var(--color-bg-secondary)}.action-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:all var(--transition-fast);border:var(--border-width) solid transparent}.action-btn.save{background-color:var(--color-accent);color:#fff;border-color:var(--color-accent-dark);box-shadow:var(--shadow-sm)}.action-btn.save:hover{background-color:var(--color-accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.empty-text{text-align:center;color:var(--color-text-secondary);padding:var(--spacing-lg);font-style:italic}.preset-list{display:flex;flex-direction:column;gap:var(--spacing-sm)}.preset-item-row{display:flex;align-items:center;gap:var(--spacing-sm)}.preset-select-btn{flex:1;display:flex;flex-direction:column;align-items:flex-start;padding:var(--spacing-sm) var(--spacing-md);background:#fff;border:var(--border-width) solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);text-align:left}.preset-select-btn:hover{border-color:var(--color-accent);background-color:var(--color-bg-secondary);transform:translate(2px)}.preset-name{font-weight:700;color:var(--color-text-primary);font-size:1rem}.preset-info{font-size:.8rem;color:var(--color-text-secondary);margin-top:2px}.preset-delete-btn{padding:10px;background:#fff;border:var(--border-width) solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;justify-content:center;height:100%}.preset-delete-btn:hover{background-color:#fee2e2;color:#ef4444;border-color:#fca5a5}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.setup-view{display:flex;flex-direction:column;gap:var(--spacing-lg);animation:fadeIn .3s ease;will-change:opacity,transform}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.mode-switch{display:flex;background:var(--color-bg-primary);padding:0;border:var(--border-width) solid var(--color-border);border-radius:var(--radius-sm);box-shadow:var(--shadow-md);overflow:hidden}.mode-switch button{flex:1;border:none;background:var(--color-bg-primary);padding:var(--spacing-md);color:var(--color-text-secondary);font-weight:700;transition:all var(--transition-fast);border-right:var(--border-width) solid var(--color-border)}.mode-switch button:last-child{border-right:none}.mode-switch button.active{background:var(--color-highlight);color:var(--color-text-primary)}.config-card{background:var(--color-bg-primary);padding:var(--spacing-lg);border:var(--border-width) solid var(--color-border);border-radius:var(--radius-sm);box-shadow:var(--shadow-md);display:flex;flex-direction:column;gap:var(--spacing-md);position:relative}.config-card:after{content:"SETUP";position:absolute;top:-10px;right:-10px;background:var(--color-accent);color:#fff;padding:4px 8px;font-size:.8rem;font-weight:900;border:var(--border-width) solid var(--color-border);transform:rotate(5deg)}.input-group{display:flex;flex-direction:column;gap:var(--spacing-xs)}.input-group label{font-size:.9rem;color:var(--color-text-primary);font-weight:700;text-transform:uppercase;background:var(--color-highlight);display:inline-block;width:fit-content;padding:0 4px;border:var(--border-width) solid var(--color-border)}.input-group input{padding:var(--spacing-md);border:var(--border-width) solid var(--color-border);border-radius:var(--radius-sm);font-size:1.2rem;font-weight:700;outline:none;background:var(--color-bg-secondary);box-shadow:inset 2px 2px #0000000d;transition:all var(--transition-fast);-moz-appearance:textfield}.input-group input::-webkit-outer-spin-button,.input-group input::-webkit-inner-spin-button,.value-input input::-webkit-outer-spin-button,.value-input input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.input-group input:focus{background:#fff;box-shadow:inset 2px 2px 0 var(--color-accent-light);border-color:var(--color-accent)}.segments-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-md);border-bottom:4px solid var(--color-accent);padding-bottom:4px}.segments-header h3{margin:0;font-size:1.2rem;color:var(--color-text-primary);font-weight:900;line-height:1;border:none}.header-actions{display:flex;gap:var(--spacing-sm)}.mini-preset-btn{display:flex;align-items:center;gap:4px;padding:2px 8px;font-size:.8rem;font-weight:700;background:#fff;border:var(--border-width) solid var(--color-border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);box-shadow:2px 2px 0 var(--color-border)}.mini-preset-btn:hover{transform:translate(-1px,-1px);box-shadow:3px 3px 0 var(--color-border);background:var(--color-highlight)}.segment-item{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm);align-items:center;background:#fff;padding:var(--spacing-sm);border:1px dashed var(--color-border)}.segment-item input[type=text]{flex:2;padding:var(--spacing-sm);border:var(--border-width) solid var(--color-border);border-radius:0;font-weight:600}.value-input{flex:1;display:flex;align-items:center;position:relative}.value-input input{width:100%;padding:var(--spacing-sm);padding-right:2.5rem;border:var(--border-width) solid var(--color-border);border-radius:0;font-weight:700}.value-input .unit{position:absolute;right:var(--spacing-sm);color:var(--color-text-primary);font-size:.8rem;font-weight:900;pointer-events:none}.calculated-time{font-size:.8rem;color:var(--color-accent);font-weight:700;white-space:nowrap;width:auto;min-width:40px;text-align:center;background:var(--color-accent-light);padding:0 4px;border:1px solid var(--color-border);transform:rotate(-2deg);flex-shrink:0;line-height:1.4}.icon-btn{border:var(--border-width) solid transparent;background:none;color:var(--color-text-secondary);padding:var(--spacing-sm);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.icon-btn:hover{background-color:var(--color-error);color:#fff;border-color:var(--color-border);box-shadow:2px 2px 0 var(--color-border)}.add-btn{width:100%;padding:var(--spacing-md);border:var(--border-width) dashed var(--color-border);background:var(--color-bg-secondary);color:var(--color-text-primary);font-weight:700;display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);transition:all var(--transition-fast)}.add-btn:hover{background-color:var(--color-highlight);border-style:solid;transform:scale(1.01)}.summary-info{text-align:right;font-weight:900;font-size:1.1rem;color:var(--color-text-primary);padding-top:var(--spacing-md);border-top:2px dotted var(--color-border)}.actions{display:flex;flex-direction:column;gap:var(--spacing-md)}.preset-actions{background:var(--color-bg-primary);padding:var(--spacing-md);border:var(--border-width) solid var(--color-border);box-shadow:var(--shadow-sm)}.toggle-presets-btn{width:100%;padding:var(--spacing-sm);background:none;border:none;color:var(--color-text-secondary);font-weight:700;text-decoration:underline;cursor:pointer}.presets-content{margin-top:var(--spacing-md);animation:slideDown .2s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.save-preset{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-md)}.save-preset input{flex:1;padding:var(--spacing-sm);border:var(--border-width) solid var(--color-border);border-radius:0}.save-preset button{background:var(--color-text-primary);color:#fff;border:var(--border-width) solid var(--color-border);border-radius:0;padding:0 var(--spacing-md);display:flex;align-items:center;transition:all var(--transition-fast)}.save-preset button:hover:not(:disabled){background:var(--color-accent);transform:translate(-2px,-2px);box-shadow:2px 2px 0 var(--color-border)}.save-preset button:disabled{opacity:.5;cursor:not-allowed}.load-preset p{font-weight:700;margin:0 0 var(--spacing-sm) 0;font-size:.9rem;text-transform:uppercase}.preset-chips{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.chip{background:#fff;color:var(--color-text-primary);border:var(--border-width) solid var(--color-border);padding:4px 12px;border-radius:var(--radius-full);font-size:.9rem;font-weight:700;transition:all var(--transition-fast);box-shadow:2px 2px 0 var(--color-border)}.chip:hover{background:var(--color-secondary-accent);transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--color-border)}.start-btn{width:100%;padding:var(--spacing-md);background:var(--color-accent);color:#fff;border:var(--border-width) solid var(--color-border);border-radius:var(--radius-sm);font-size:1.5rem;font-weight:900;display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);box-shadow:var(--shadow-md);transition:all var(--transition-fast);text-transform:uppercase}.start-btn:hover{transform:translate(-4px,-4px);box-shadow:var(--shadow-lg);background:var(--color-accent-hover)}.start-btn:active{transform:translate(0)}@media(max-width:480px){.summary-info{font-size:.9rem}.start-btn{font-size:1rem}.setup-view{gap:var(--spacing-md)}.config-card{padding:var(--spacing-md);gap:var(--spacing-sm)}.segment-item{gap:4px;padding:8px}.segment-item input[type=text]{padding:8px;font-size:1rem;width:0;min-width:0}.value-input{min-width:60px}.value-input input{padding:8px;padding-right:1.5rem;font-size:1rem}.value-input .unit{right:4px;font-size:.7rem}.icon-btn.delete{padding:4px}.calculated-time{font-size:.75rem;width:auto;min-width:40px;padding:0 4px}.mode-switch{flex-direction:row}.mode-switch button{border-right:var(--border-width) solid var(--color-border);border-bottom:none;padding:var(--spacing-sm);font-size:.9rem}.mode-switch button:last-child{border-right:none}}.timer-view{display:flex;flex-direction:column;gap:var(--spacing-lg);animation:fadeIn .3s ease;padding-bottom:var(--spacing-lg)}.timer-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-sm) 0}.segment-indicator{font-weight:900;color:var(--color-text-primary);background:var(--color-highlight);padding:6px 16px;border:var(--border-width) solid var(--color-border);border-radius:var(--radius-full);box-shadow:2px 2px 0 var(--color-border);transform:rotate(-2deg)}.timer-display{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-lg)}.timer-circle{width:260px;height:260px;border-radius:50%;background:conic-gradient(var(--color-accent) var(--progress),var(--color-bg-primary) 0deg);display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);position:relative;border:var(--border-width) solid var(--color-border)}.timer-circle:before{content:"";position:absolute;width:220px;height:220px;background:var(--color-bg-primary);border-radius:50%;border:var(--border-width) solid var(--color-border)}.time-text{font-size:4.5rem;font-weight:900;color:var(--color-text-primary);z-index:1;font-variant-numeric:tabular-nums;text-shadow:3px 3px 0 var(--color-secondary-accent);font-family:Arial Black,sans-serif}.status-text{font-size:1.2rem;font-weight:700;color:var(--color-text-primary);z-index:1;text-transform:uppercase;letter-spacing:2px;background:var(--color-highlight);padding:2px 8px;border:var(--border-width) solid var(--color-border);margin-top:var(--spacing-sm)}.current-task-name{font-size:2rem;font-weight:900;color:var(--color-text-primary);margin:var(--spacing-xl) 0 var(--spacing-md) 0;text-align:center;background:#fff;padding:var(--spacing-sm) var(--spacing-lg);border:var(--border-width) solid var(--color-border);box-shadow:var(--shadow-md);transform:rotate(1deg)}.next-task-preview{background:var(--color-bg-primary);padding:var(--spacing-sm) var(--spacing-md);border:var(--border-width) solid var(--color-border);color:var(--color-text-secondary);font-size:.9rem;font-weight:700;box-shadow:4px 4px 0 var(--color-border);margin-bottom:var(--spacing-lg)}.timer-controls{display:flex;justify-content:center;align-items:center;gap:var(--spacing-xl);margin-bottom:var(--spacing-xl)}.control-btn{border:var(--border-width) solid var(--color-border);background:#fff;color:var(--color-text-primary);border-radius:50%;width:64px;height:64px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);transition:all var(--transition-fast)}.control-btn:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow-lg);background:var(--color-highlight)}.control-btn:active{transform:translate(0);box-shadow:none}.control-btn.play{background:var(--color-accent);color:#fff;width:80px;height:80px}.control-btn.play:hover{background:var(--color-accent-hover)}.control-btn.pause{background:var(--color-warning);color:#fff;width:80px;height:80px}@media(max-width:480px){.timer-view{justify-content:flex-start;gap:var(--spacing-md);padding-top:var(--spacing-xs)}.timer-header{padding:0;margin-bottom:0}.timer-display{gap:var(--spacing-md);justify-content:flex-start}.timer-circle{width:180px;height:180px}.timer-circle:before{width:150px;height:150px}.time-text{font-size:3rem}.status-text{font-size:.9rem;padding:1px 6px}.current-task-name{font-size:1.4rem;margin:var(--spacing-sm) 0 0 0;padding:4px 12px}.next-task-preview{margin-bottom:var(--spacing-md);padding:4px 8px;font-size:.8rem;margin-top:var(--spacing-xs)}.timer-controls{gap:var(--spacing-lg);margin-bottom:var(--spacing-sm)}.control-btn{width:48px;height:48px}.control-btn.play,.control-btn.pause{width:64px;height:64px}.control-btn svg{width:20px;height:20px}.control-btn.play svg,.control-btn.pause svg{width:28px;height:28px}.sugarcane-progress{gap:6px;padding:var(--spacing-sm);margin-top:var(--spacing-md);margin-bottom:0}.cane-node{width:32px;height:16px}}.sugarcane-progress{display:flex;justify-content:center;gap:12px;margin-top:var(--spacing-xl);padding:var(--spacing-md);background:#fff;border:var(--border-width) solid var(--color-border);border-radius:var(--radius-md)}.cane-node{width:48px;height:24px;background:#fff;border:var(--border-width) solid var(--color-border);border-radius:6px;display:flex;align-items:center;justify-content:center;color:var(--color-text-primary);transition:all var(--transition-normal);box-shadow:2px 2px #0000001a;position:relative}.cane-node.completed{background:var(--color-secondary-accent);box-shadow:2px 2px 0 var(--color-border);border-color:var(--color-text-primary)}.cane-node.active{background:var(--color-accent);transform:scale(1.2) translateY(-6px);box-shadow:4px 4px 0 var(--color-border);z-index:10;border-color:var(--color-text-primary)}@media(max-height:700px){.segment-indicator{font-size:.8rem}.timer-view{gap:var(--spacing-md);padding-bottom:var(--spacing-xs)}.timer-circle{width:150px;height:150px}.timer-circle:before{width:120px;height:120px}.time-text{font-size:2.5rem}.current-task-name{font-size:1.2rem;margin:var(--spacing-xs) 0;padding:2px 8px}.next-task-preview{margin-bottom:var(--spacing-sm);padding:2px 6px;font-size:.75rem}.timer-controls{gap:var(--spacing-md);margin-bottom:var(--spacing-xs)}.control-btn{width:40px;height:40px}.control-btn.play,.control-btn.pause{width:56px;height:56px}.sugarcane-progress{margin-top:var(--spacing-xs);padding:var(--spacing-xs);gap:8px;height:44px;align-items:center}.cane-node{width:28px;height:14px}}.history-view{display:flex;flex-direction:column;height:100%;animation:fadeIn .3s ease}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg);border-bottom:4px solid var(--color-text-primary);padding-bottom:var(--spacing-sm)}.history-header h2{margin:0;font-size:1.5rem;font-weight:900;color:var(--color-text-primary);text-transform:uppercase;background:var(--color-highlight);padding:0 8px}.history-list{display:flex;flex-direction:column;gap:var(--spacing-md);overflow-y:auto;padding-bottom:var(--spacing-lg)}.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-md);border:2px dashed var(--color-border);background:#fff;margin:var(--spacing-lg)}.history-card{background:#fff;border:var(--border-width) solid var(--color-border);padding:var(--spacing-md);box-shadow:var(--shadow-sm);transition:transform var(--transition-fast);position:relative;margin:4px}.history-card:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow-md)}.history-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--color-secondary-accent);border-right:var(--border-width) solid var(--color-border)}.card-header{display:flex;justify-content:space-between;margin-bottom:var(--spacing-sm);padding-bottom:var(--spacing-sm);border-bottom:1px dashed var(--color-border);padding-left:var(--spacing-sm)}.date{display:flex;align-items:center;gap:var(--spacing-xs);color:var(--color-text-primary);font-size:.9rem;font-weight:700}.card-footer{display:flex;justify-content:space-between;align-items:center;margin-top:var(--spacing-md);padding-top:var(--spacing-sm);border-top:1px dashed var(--color-border)}.delete-btn{background:none;border:none;color:var(--color-text-secondary);padding:4px;cursor:pointer;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.delete-btn:hover{background-color:var(--color-error);color:#fff}.duration-badge{display:inline-block;font-weight:900;color:#fff;background:var(--color-text-primary);padding:2px 8px;font-size:.9rem;transform:rotate(-1deg);box-shadow:2px 2px 0 var(--color-secondary-accent)}.segments-summary{display:flex;flex-direction:column;gap:6px;padding-left:var(--spacing-sm);margin-bottom:var(--spacing-sm)}.segment-row{display:flex;justify-content:space-between;font-size:.9rem;align-items:center}.segment-row .name{color:var(--color-text-primary);font-weight:600}.segment-row .time{color:var(--color-text-secondary);font-family:monospace;font-weight:700;background:var(--color-bg-secondary);padding:0 4px}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.modal-content{background:var(--color-bg-primary);width:90%;max-width:500px;border:var(--border-width) solid var(--color-border);box-shadow:var(--shadow-lg);border-radius:var(--radius-md);animation:slideUp .3s ease;max-height:80vh;overflow-y:auto}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-md) var(--spacing-lg);border-bottom:var(--border-width) solid var(--color-border);background:var(--color-highlight)}.modal-header h2{margin:0;font-size:1.2rem}.close-btn{background:none;border:none;cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center}.close-btn:hover{background:#0000001a;border-radius:50%}.modal-body{padding:var(--spacing-lg);line-height:1.6}.modal-body h3{margin-top:var(--spacing-lg);margin-bottom:var(--spacing-sm);font-size:1.1rem;border-left:4px solid var(--color-accent);padding-left:var(--spacing-sm)}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.app-footer{margin-top:auto;padding:var(--spacing-sm) 0;border-top:var(--border-width) solid var(--color-border);background:#fff;text-align:center}.footer-links{display:flex;justify-content:center;align-items:center;gap:var(--spacing-sm);font-size:.75rem;color:var(--color-text-secondary);flex-wrap:nowrap;white-space:nowrap}.link-btn{background:none;border:none;color:var(--color-text-secondary);cursor:pointer;text-decoration:none;padding:2px 4px;font-weight:500;transition:color .2s}.link-btn:hover{color:var(--color-accent);text-decoration:underline}.separator{color:var(--color-border)}.app-container{width:94%;max-width:500px;margin:20px auto;height:auto;min-height:auto;display:flex;flex-direction:column;background-color:var(--color-bg-primary);border:var(--border-width) solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);position:relative;overflow:hidden}@media(min-width:480px){.app-container{margin:40px auto}}.app-container:before{content:"";position:absolute;top:0;left:0;right:0;height:8px;background:repeating-linear-gradient(45deg,var(--color-accent),var(--color-accent) 10px,var(--color-highlight) 10px,var(--color-highlight) 20px);z-index:20}.app-header{padding:var(--spacing-lg);display:flex;justify-content:space-between;align-items:center;background:var(--color-bg-primary);border-bottom:var(--border-width) solid var(--color-border);position:sticky;top:0;z-index:10}@media(max-width:480px){.app-header{padding:var(--spacing-md)}.app-header h1{font-size:1.5rem}}.app-header h1{margin:0;font-size:1.8rem;font-weight:900;color:var(--color-text-primary);text-transform:uppercase;letter-spacing:-1px;font-family:Arial Black,sans-serif;text-shadow:2px 2px 0 var(--color-accent-light)}.app-header nav{display:flex;gap:var(--spacing-sm)}.app-header nav button{background:none;border:var(--border-width) solid transparent;padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-full);color:var(--color-text-primary);font-weight:700;transition:all var(--transition-fast)}.app-header nav button:hover{background-color:var(--color-highlight);border-color:var(--color-border);transform:translate(-2px,-2px);box-shadow:2px 2px 0 var(--color-border)}.app-header nav button.active{background-color:var(--color-accent);color:#fff;border-color:var(--color-border);transform:translate(-2px,-2px);box-shadow:2px 2px 0 var(--color-border)}.app-content{flex:1;padding:var(--spacing-md);display:flex;flex-direction:column;background-color:var(--color-bg-secondary)}@media(min-width:480px){.app-content{padding:var(--spacing-lg)}}