.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.login-container{background:#fff;border-radius:16px;padding:48px 40px;max-width:440px;width:100%;box-shadow:0 20px 60px #0000004d}.logo h1{margin:0;font-size:48px;font-weight:800;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-align:center}.tagline{text-align:center;color:#666;font-size:16px;margin:8px 0 32px}.login-content h2{font-size:28px;font-weight:700;color:#333;margin:0 0 12px;text-align:center}.login-content p{text-align:center;color:#666;line-height:1.6;margin-bottom:32px}.login-button{width:100%;display:flex;align-items:center;justify-content:center;gap:12px;padding:16px 24px;background:#fff;border:2px solid #ddd;border-radius:8px;font-size:16px;font-weight:600;color:#333;cursor:pointer;transition:all .2s}.login-button:hover{background:#f8f9fa;border-color:#999;box-shadow:0 4px 12px #00000026}.google-icon{width:24px;height:24px}.privacy-note{font-size:12px;color:#999;text-align:center;margin-top:24px}@media (max-width: 480px){.login-container{padding:32px 24px}.logo h1{font-size:36px}.login-content h2{font-size:24px}}.poll-card{background:var(--color-bg-primary);border-radius:var(--radius-xl);padding:var(--spacing-2xl);box-shadow:var(--shadow-lg);width:100%;max-width:600px;transition:transform var(--transition-slow),box-shadow var(--transition-slow);position:relative}.poll-card:hover{box-shadow:var(--shadow-xl)}.poll-card-voting{pointer-events:none}.vote-success-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;background:#fffffff7;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:200;border-radius:var(--radius-xl);animation:fadeInOverlay .3s ease-out}@keyframes fadeInOverlay{0%{opacity:0}to{opacity:1}}.vote-success-animation{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-lg);animation:scaleIn .4s cubic-bezier(.175,.885,.32,1.275)}@keyframes scaleIn{0%{transform:scale(.5);opacity:0}to{transform:scale(1);opacity:1}}.checkmark-icon{width:80px;height:80px}.checkmark-circle{stroke:var(--color-primary);stroke-width:2;stroke-miterlimit:10;animation:fillCircle .4s ease-in-out forwards;transform-origin:50% 50%}@keyframes fillCircle{0%{stroke-dasharray:0 166}to{stroke-dasharray:166 166}}.checkmark-check{stroke:var(--color-primary);stroke-width:3;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:48;stroke-dashoffset:48;animation:drawCheck .4s .2s ease-in-out forwards}@keyframes drawCheck{to{stroke-dashoffset:0}}.vote-success-text{font-size:22px;font-weight:var(--font-weight-bold);color:var(--color-primary);animation:fadeInText .3s .3s ease-out backwards}@keyframes fadeInText{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.poll-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-xl);padding-bottom:var(--spacing-lg);border-bottom:2px solid #f0f0f0}.poll-header-actions{display:flex;align-items:center;gap:var(--spacing-md)}.poll-creator{font-weight:var(--font-weight-bold);color:var(--color-primary);font-size:var(--font-size-base);text-decoration:none}.poll-creator-clickable{cursor:pointer;transition:all var(--transition-base)}.poll-creator-clickable:hover{color:var(--color-secondary)}.share-button{background:transparent;border:none;cursor:pointer;color:var(--color-primary);padding:var(--spacing-sm);display:flex;align-items:center;justify-content:center;transition:all var(--transition-base);border-radius:var(--radius-sm)}.share-button:hover{background:#f0f4ff;color:var(--color-secondary)}.copied-indicator{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-success);white-space:nowrap}.poll-date{font-size:var(--font-size-sm);color:var(--color-text-tertiary);font-weight:var(--font-weight-medium)}.poll-question{font-size:26px;font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin:0 0 28px;line-height:1.3;text-align:center}.poll-question-link{color:var(--color-text-primary);text-decoration:none;cursor:pointer;transition:all var(--transition-base)}.poll-question-link:visited{color:var(--color-text-primary)}.poll-question-link:hover{color:var(--color-primary)}.poll-options{display:flex;flex-direction:column;gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.poll-option{position:relative;background:var(--color-bg-tertiary);border:3px solid var(--color-border-light);border-radius:var(--radius-lg);padding:20px var(--spacing-xl);cursor:pointer;transition:all var(--transition-slow);overflow:hidden;text-align:left}.poll-option:hover:not(:disabled){border-color:var(--color-primary);transform:scale(1.02);box-shadow:0 6px 16px #667eea40}.poll-option:active:not(:disabled){transform:scale(.98)}.poll-option:disabled{cursor:not-allowed;opacity:.8}.poll-option-voting{animation:pulseVote .6s ease-in-out;border-color:var(--color-primary)!important;background:#f0f4ff!important}@keyframes pulseVote{0%{transform:scale(1);box-shadow:0 0 #667eeab3}50%{transform:scale(1.05);box-shadow:0 0 0 10px #667eea00}to{transform:scale(1);box-shadow:0 0 #667eea00}}.poll-option-selected{border-color:var(--color-primary);border-width:4px;background:#f0f4ff}.poll-option-selected:hover:not(:disabled){border-color:var(--color-secondary)}.poll-option-unvoted{background:var(--color-bg-primary);border-color:#d0d0d0}.poll-option-unvoted:hover:not(:disabled){background:var(--color-bg-tertiary);border-color:var(--color-primary)}.vote-indicator{color:var(--color-primary);font-weight:900;font-size:20px;margin-right:var(--spacing-xs)}.poll-option-background{position:absolute;top:0;left:0;bottom:0;background:var(--gradient-primary);opacity:.12;transition:width .6s ease}.poll-option-content{position:relative;display:flex;justify-content:space-between;align-items:center;z-index:1}.poll-option-text{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.poll-option-percentage{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-primary);margin-left:var(--spacing-lg)}.poll-footer{display:flex;justify-content:space-between;align-items:center;padding-top:20px;margin-top:var(--spacing-sm);border-top:2px solid #f0f0f0}.poll-votes{font-size:var(--font-size-base);color:var(--color-text-secondary);font-weight:var(--font-weight-bold)}.unvote-button{background:transparent;border:2px solid var(--color-text-tertiary);color:var(--color-text-secondary);padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);cursor:pointer;transition:all var(--transition-base)}.unvote-button:hover:not(:disabled){border-color:var(--color-error-text);color:var(--color-error-text);background:var(--color-error-bg)}.unvote-button:disabled{opacity:.5;cursor:not-allowed}.error-message{background:var(--color-error-bg);color:var(--color-error-text);padding:var(--spacing-lg);border-radius:var(--radius-md);margin-bottom:var(--spacing-lg);font-size:15px;font-weight:var(--font-weight-semibold);text-align:center}.vote-status{background:#e8f0ff;color:var(--color-primary);padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-md);margin-bottom:var(--spacing-lg);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);text-align:center;border:2px solid #d0e0ff}@media (max-width: 768px){.poll-card{padding:var(--spacing-xl)}.poll-question{font-size:22px}.poll-option-text,.poll-option-percentage{font-size:var(--font-size-base)}}.create-poll-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.create-poll-form{background:#fff;border-radius:12px;padding:24px;max-width:500px;width:100%;max-height:90vh;overflow-y:auto}.create-poll-form h2{margin:0 0 20px;font-size:24px;color:#333}.error-message{background:#fee;color:#c00;padding:12px;border-radius:6px;margin-bottom:16px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:#555}.form-group input[type=text]{width:100%;padding:12px;border:2px solid #ddd;border-radius:8px;font-size:16px;transition:border-color .2s}.form-group input[type=text]:focus{outline:none;border-color:#007bff}.option-input{display:flex;gap:8px;margin-bottom:8px}.option-input input{flex:1}.remove-option-btn{background:#dc3545;color:#fff;border:none;border-radius:6px;padding:8px 12px;cursor:pointer;font-size:16px}.remove-option-btn:hover{background:#c82333}.add-option-btn{background:#28a745;color:#fff;border:none;border-radius:8px;padding:10px 16px;cursor:pointer;font-size:14px;margin-top:8px}.add-option-btn:hover{background:#218838}.form-actions{display:flex;gap:12px;margin-top:24px}.cancel-btn,.submit-btn{flex:1;padding:12px;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:background .2s}.cancel-btn{background:#6c757d;color:#fff}.cancel-btn:hover{background:#5a6268}.submit-btn{background:#007bff;color:#fff}.submit-btn:hover{background:#0056b3}.submit-btn:disabled,.cancel-btn:disabled,.add-option-btn:disabled,.remove-option-btn:disabled{opacity:.6;cursor:not-allowed}.feed-page{height:100%;display:flex;flex-direction:column}.feed-container{max-width:700px;margin:0 auto;padding:var(--spacing-xl) var(--spacing-lg);width:100%;flex:1;overflow-y:auto;min-height:0}.loading-spinner{text-align:center;padding:var(--spacing-3xl);color:var(--color-text-secondary);font-size:var(--font-size-lg)}.error-message{background:var(--color-error-bg);color:var(--color-error-text);padding:var(--spacing-lg);border-radius:var(--radius-md);margin-bottom:20px;text-align:center}.empty-state{text-align:center;padding:var(--spacing-5xl) var(--spacing-xl);background:var(--color-bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.empty-state h2{font-size:28px;color:var(--color-text-primary);margin:0 0 var(--spacing-md) 0}.empty-state p{color:var(--color-text-secondary);font-size:var(--font-size-base);margin-bottom:var(--spacing-xl)}.poll-card-container{display:flex;justify-content:center;width:100%;position:relative;min-height:400px;transition:none}.navigation-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;background:#ffffffeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:100;border-radius:var(--radius-xl);animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.navigation-spinner{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-lg)}.spinner-icon{width:60px;height:60px;animation:rotate 1s linear infinite}@keyframes rotate{to{transform:rotate(360deg)}}.spinner-path{stroke:var(--color-primary);stroke-linecap:round;animation:dash 1.5s ease-in-out infinite}@keyframes dash{0%{stroke-dasharray:1,150;stroke-dashoffset:0}50%{stroke-dasharray:90,150;stroke-dashoffset:-35}to{stroke-dasharray:90,150;stroke-dashoffset:-124}}.navigation-text{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-primary)}.poll-navigation{flex-shrink:0;display:flex;align-items:center;justify-content:center;gap:var(--spacing-lg);padding:var(--spacing-lg);background:var(--color-bg-primary);border-top:1px solid #f0f0f0;position:relative;z-index:150}.poll-navigation-inner{display:flex;align-items:center;gap:var(--spacing-lg);width:100%;max-width:600px}.nav-previous{display:flex;align-items:center;gap:var(--spacing-sm);padding:14px var(--spacing-lg);font-size:15px;flex-shrink:0}.nav-next{flex:1;display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);font-size:17px;padding:14px var(--spacing-2xl)}.nav-spinner{animation:rotateSpinner 1s linear infinite}@keyframes rotateSpinner{to{transform:rotate(360deg)}}.nav-spinner-circle{stroke:currentColor;stroke-linecap:round;animation:dashSpinner 1.5s ease-in-out infinite}@keyframes dashSpinner{0%{stroke-dasharray:1,150;stroke-dashoffset:0}50%{stroke-dasharray:90,150;stroke-dashoffset:-35}to{stroke-dasharray:90,150;stroke-dashoffset:-124}}.poll-counter{text-align:center;color:var(--color-text-secondary);font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);padding:var(--spacing-sm) var(--spacing-lg);background:var(--color-bg-primary);border-radius:20px;box-shadow:var(--shadow-md)}@media (max-width: 768px){.feed-container{padding:var(--spacing-lg) var(--spacing-md)}.poll-navigation{gap:10px}.nav-previous{padding:14px var(--spacing-md);font-size:var(--font-size-sm);gap:var(--spacing-xs)}.nav-previous svg{width:16px;height:16px}.nav-next{font-size:var(--font-size-base);padding:14px 20px}.nav-next svg{width:18px;height:18px}}.explore-page{height:100%}.explore-container{max-width:1200px;margin:0 auto;padding:24px 16px}.explore-title{font-size:24px;font-weight:700;color:#333;margin:0 0 24px}.polls-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:20px;margin-bottom:32px}.load-more-container{display:flex;justify-content:center;margin-top:32px}.load-more-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;padding:14px 32px;font-size:16px;font-weight:700;cursor:pointer;transition:transform .2s,box-shadow .2s}.load-more-btn:hover:not(:disabled){box-shadow:0 6px 20px #667eea66}.load-more-btn:disabled{opacity:.6;cursor:not-allowed}.loading-spinner{text-align:center;padding:40px;color:#666;font-size:18px}.error-message{background:#fee;color:#c00;padding:16px;border-radius:8px;margin-bottom:20px;text-align:center}.empty-state{text-align:center;padding:60px 20px;background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000001a}.empty-state h3{font-size:24px;color:#333;margin:0 0 12px}.empty-state p{color:#666;font-size:16px;margin:0}@media (max-width: 768px){.explore-container{padding:16px 12px}.explore-title{font-size:20px}.polls-grid{grid-template-columns:1fr;gap:16px}}.activity-page{height:100%}.activity-container{max-width:800px;margin:0 auto;padding:24px 16px}.activity-title{font-size:24px;font-weight:700;color:#333;margin:0 0 24px}.coming-soon{text-align:center;padding:80px 20px;background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000001a}.coming-soon-icon{font-size:64px;margin-bottom:16px}.coming-soon h3{font-size:24px;color:#333;margin:0 0 12px}.coming-soon p{color:#666;font-size:16px;margin:0}@media (max-width: 768px){.activity-container{padding:16px 12px}.activity-title{font-size:20px}.coming-soon{padding:60px 20px}.coming-soon-icon{font-size:48px}}.account-page{min-height:100vh;background:#f5f7fa}.account-container{max-width:600px;margin:0 auto;padding:24px 16px}.account-card{background:#fff;border-radius:12px;padding:32px;box-shadow:0 2px 8px #0000001a}.account-title{font-size:28px;font-weight:700;color:#333;margin:0 0 32px}.account-page .profile-info{display:flex;flex-direction:column;gap:24px;margin-bottom:32px}.info-row{display:flex;flex-direction:column;gap:8px}.info-label{font-size:12px;font-weight:600;text-transform:uppercase;color:#999;letter-spacing:.5px}.info-value{font-size:16px;font-weight:500;color:#333}.logout-btn{background:#dc3545;color:#fff;border:none;border-radius:8px;padding:14px 24px;font-size:16px;font-weight:700;cursor:pointer;width:100%;transition:background .2s}.logout-btn:hover{background:#c82333}@media (max-width: 768px){.account-container{padding:16px 12px}.account-card{padding:24px}.account-title{font-size:24px}}.user-profile-page{min-height:100vh;background:#f5f5f5;padding:20px}.user-profile-container{max-width:800px;margin:0 auto}.user-profile-header{background:#fff;padding:24px;border-radius:12px;box-shadow:0 2px 4px #0000001a;margin-bottom:24px}.user-name{font-size:28px;font-weight:600;color:#333;margin:0 0 8px}.user-stats{font-size:14px;color:#666;margin:0}.user-polls-section{background:#fff;padding:24px;border-radius:12px;box-shadow:0 2px 4px #0000001a}.section-title{font-size:20px;font-weight:600;color:#333;margin:0 0 20px}.polls-list{display:flex;flex-direction:column;gap:16px}.no-polls{text-align:center;padding:40px 20px;color:#999;font-size:16px}.loading,.error{text-align:center;padding:40px 20px;font-size:16px}.loading{color:#666}.error{color:#e74c3c}.app-shell{background:#f5f7fa;display:flex;flex-direction:column;height:100%;height:100dvh;overflow:hidden;position:relative;width:100%}.app-header{background:#fff;border-bottom:1px solid #ddd;padding:16px 24px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 4px #0000000d;flex-shrink:0;z-index:200}.app-header h1{margin:0;font-size:28px;font-weight:800;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-actions{display:flex;align-items:center;gap:12px}.create-poll-btn{padding:8px 16px;font-size:14px;font-weight:600;white-space:nowrap}.avatar-btn{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;font-size:16px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .2s,box-shadow .2s}.avatar-btn:hover{transform:scale(1.05);box-shadow:0 4px 12px #667eea66}.app-content{flex:1;overflow-y:auto;overflow-x:hidden;min-height:0;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}.app-nav{background:#fff;border-top:1px solid #ddd;display:flex;justify-content:center;gap:8px;padding:0 16px;padding-bottom:env(safe-area-inset-bottom);box-shadow:0 -2px 8px #0000000d;z-index:100;flex-shrink:0}.tab-button{background:none;border:none;padding:16px 32px;font-size:16px;font-weight:600;color:#666;cursor:pointer;position:relative;transition:color .2s}.tab-button:hover{color:#333}.tab-button.active{color:#667eea}.tab-button.active:after{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(135deg,#667eea,#764ba2)}@media (max-width: 768px){.app-header{padding:12px 16px}.app-header h1{font-size:24px}.header-actions{gap:8px}.create-poll-btn{padding:6px 12px;font-size:13px}.avatar-btn{width:36px;height:36px;font-size:14px}.app-nav{padding:0 8px}.tab-button{padding:12px 20px;font-size:14px}}:root{--color-primary: #667eea;--color-primary-dark: #5568d3;--color-secondary: #764ba2;--color-secondary-dark: #6a4290;--gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--gradient-primary-hover: linear-gradient(135deg, #5568d3 0%, #6a4290 100%);--gradient-primary-active: linear-gradient(135deg, #4a5dc4 0%, #5e3a7f 100%);--color-danger: #dc3545;--color-danger-hover: #c82333;--color-success: #28a745;--color-success-hover: #218838;--color-warning: #ffc107;--color-text-primary: #222;--color-text-secondary: #666;--color-text-tertiary: #888;--color-text-light: #999;--color-border: #ddd;--color-border-light: #e0e0e0;--color-bg-primary: #ffffff;--color-bg-secondary: #f5f7fa;--color-bg-tertiary: #f8f9fa;--color-error-bg: #fee;--color-error-text: #c00;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 24px;--spacing-2xl: 32px;--spacing-3xl: 40px;--spacing-4xl: 48px;--spacing-5xl: 64px;--spacing-6xl: 80px;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 50%;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 2px 8px rgba(0, 0, 0, .1);--shadow-lg: 0 4px 12px rgba(0, 0, 0, .15);--shadow-xl: 0 8px 24px rgba(0, 0, 0, .2);--shadow-primary: 0 4px 12px rgba(102, 126, 234, .2);--shadow-primary-hover: 0 6px 20px rgba(102, 126, 234, .4);--font-size-xs: 12px;--font-size-sm: 14px;--font-size-base: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 32px;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease;--z-dropdown: 1000;--z-sticky: 1020;--z-fixed: 1030;--z-modal-backdrop: 1040;--z-modal: 1050;--z-tooltip: 1070}.btn{padding:var(--spacing-md) var(--spacing-xl);font-size:var(--font-size-base);font-weight:var(--font-weight-bold);text-align:center;text-decoration:none;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);font-family:inherit;line-height:1.5}.btn:focus{outline:none}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-sm{padding:var(--spacing-sm) var(--spacing-md);font-size:var(--font-size-sm)}.btn-md{padding:var(--spacing-md) var(--spacing-xl);font-size:var(--font-size-base)}.btn-lg{padding:14px var(--spacing-xl);font-size:var(--font-size-lg)}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-primary)}.btn-primary:hover:not(:disabled){background:var(--gradient-primary-hover);box-shadow:var(--shadow-primary-hover);transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-secondary{background:var(--color-bg-primary);color:var(--color-text-primary);border:2px solid var(--color-border)}.btn-secondary:hover:not(:disabled){border-color:var(--color-primary);color:var(--color-primary);box-shadow:var(--shadow-md)}.btn-tertiary{background:var(--color-bg-tertiary);color:var(--color-text-primary)}.btn-tertiary:hover:not(:disabled){background:#e9ecef;box-shadow:var(--shadow-sm)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--color-danger-hover);box-shadow:0 4px 12px #dc35454d;transform:translateY(-1px)}.btn-danger-outline{background:var(--color-bg-primary);color:var(--color-danger);border:2px solid var(--color-danger)}.btn-danger-outline:hover:not(:disabled){background:var(--color-danger);color:#fff;box-shadow:0 4px 12px #dc354533}.btn-success{background:var(--color-success);color:#fff}.btn-success:hover:not(:disabled){background:var(--color-success-hover);box-shadow:0 4px 12px #28a7454d;transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-ghost:hover:not(:disabled){background:var(--color-bg-secondary);border-color:var(--color-primary)}.btn-icon{padding:var(--spacing-sm);border-radius:var(--radius-md);display:inline-flex;align-items:center;justify-content:center;min-width:40px;min-height:40px}.btn-icon.btn-circle{border-radius:var(--radius-full)}.btn-link{background:transparent;color:var(--color-primary);padding:0;border:none;text-decoration:underline}.btn-link:hover:not(:disabled){color:var(--color-primary-dark)}.btn-group{display:flex;gap:var(--spacing-md)}.btn-group-vertical{display:flex;flex-direction:column;gap:var(--spacing-md)}.btn-block{display:block;width:100%}.btn-loading{position:relative;color:transparent;pointer-events:none}.btn-loading:after{content:"";position:absolute;width:16px;height:16px;top:50%;left:50%;margin-left:-8px;margin-top:-8px;border:2px solid currentColor;border-radius:50%;border-top-color:transparent;animation:btn-spin .6s linear infinite}@keyframes btn-spin{to{transform:rotate(360deg)}}.card{background:var(--color-bg-primary);border-radius:var(--radius-lg);padding:var(--spacing-xl);box-shadow:var(--shadow-md)}.card-sm{padding:var(--spacing-lg)}.card-lg{padding:var(--spacing-2xl)}.card-hover{transition:box-shadow var(--transition-base),transform var(--transition-base)}.card-hover:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.message{padding:var(--spacing-lg);border-radius:var(--radius-md);margin-bottom:var(--spacing-lg)}.message-error{background:var(--color-error-bg);color:var(--color-error-text);border-left:4px solid var(--color-danger)}.message-success{background:#d4edda;color:#155724;border-left:4px solid var(--color-success)}.message-info{background:#d1ecf1;color:#0c5460;border-left:4px solid #17a2b8}.message-warning{background:#fff3cd;color:#856404;border-left:4px solid var(--color-warning)}.empty-state{text-align:center;padding:var(--spacing-6xl) var(--spacing-xl);background:var(--color-bg-primary);border-radius:var(--radius-lg)}.empty-state-icon{font-size:var(--font-size-3xl);color:var(--color-text-tertiary);margin-bottom:var(--spacing-lg)}.empty-state-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary);margin-bottom:var(--spacing-sm)}.empty-state-text{color:var(--color-text-tertiary);font-size:var(--font-size-base)}.loading-container{display:flex;justify-content:center;align-items:center;padding:var(--spacing-3xl)}.spinner{width:40px;height:40px;border:3px solid var(--color-border-light);border-top-color:var(--color-primary);border-radius:var(--radius-full);animation:spin .8s linear infinite}.spinner-sm{width:20px;height:20px;border-width:2px}.spinner-lg{width:60px;height:60px;border-width:4px}@keyframes spin{to{transform:rotate(360deg)}}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.text-primary{color:var(--color-primary)}.text-secondary{color:var(--color-text-secondary)}.text-tertiary{color:var(--color-text-tertiary)}.text-danger{color:var(--color-danger)}.text-success{color:var(--color-success)}.text-muted{color:var(--color-text-light)}.text-xs{font-size:var(--font-size-xs)}.text-sm{font-size:var(--font-size-sm)}.text-base{font-size:var(--font-size-base)}.text-lg{font-size:var(--font-size-lg)}.text-xl{font-size:var(--font-size-xl)}.text-2xl{font-size:var(--font-size-2xl)}.font-normal{font-weight:var(--font-weight-normal)}.font-medium{font-weight:var(--font-weight-medium)}.font-semibold{font-weight:var(--font-weight-semibold)}.font-bold{font-weight:var(--font-weight-bold)}.m-0{margin:0}.mt-sm{margin-top:var(--spacing-sm)}.mt-md{margin-top:var(--spacing-md)}.mt-lg{margin-top:var(--spacing-lg)}.mt-xl{margin-top:var(--spacing-xl)}.mb-sm{margin-bottom:var(--spacing-sm)}.mb-md{margin-bottom:var(--spacing-md)}.mb-lg{margin-bottom:var(--spacing-lg)}.mb-xl{margin-bottom:var(--spacing-xl)}.p-0{padding:0}.p-sm{padding:var(--spacing-sm)}.p-md{padding:var(--spacing-md)}.p-lg{padding:var(--spacing-lg)}.p-xl{padding:var(--spacing-xl)}.d-none{display:none}.d-block{display:block}.d-flex{display:flex}.d-inline-flex{display:inline-flex}.flex-row{flex-direction:row}.flex-column{flex-direction:column}.flex-wrap{flex-wrap:wrap}.justify-start{justify-content:flex-start}.justify-center{justify-content:center}.justify-end{justify-content:flex-end}.justify-between{justify-content:space-between}.align-start{align-items:flex-start}.align-center{align-items:center}.align-end{align-items:flex-end}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.gap-lg{gap:var(--spacing-lg)}.gap-xl{gap:var(--spacing-xl)}.border{border:1px solid var(--color-border)}.border-light{border:1px solid var(--color-border-light)}.border-primary{border:1px solid var(--color-primary)}.rounded{border-radius:var(--radius-md)}.rounded-sm{border-radius:var(--radius-sm)}.rounded-lg{border-radius:var(--radius-lg)}.rounded-xl{border-radius:var(--radius-xl)}.rounded-full{border-radius:var(--radius-full)}.shadow-sm{box-shadow:var(--shadow-sm)}.shadow-md{box-shadow:var(--shadow-md)}.shadow-lg{box-shadow:var(--shadow-lg)}.shadow-none{box-shadow:none}.w-full{width:100%}.w-auto{width:auto}.cursor-pointer{cursor:pointer}.cursor-not-allowed{cursor:not-allowed}.transition{transition:all var(--transition-base)}.transition-fast{transition:all var(--transition-fast)}.transition-slow{transition:all var(--transition-slow)}*{box-sizing:border-box}html{height:100%;overflow:hidden;position:fixed;width:100%}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;height:100%;overflow:hidden;position:fixed;width:100%;overscroll-behavior:none;-webkit-overflow-scrolling:touch}#root{height:100%;overflow:hidden}.loading-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--color-bg-secondary)}.loading-screen .loading-spinner{font-size:var(--font-size-lg);color:var(--color-primary);font-weight:var(--font-weight-semibold)}