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480px){.conversations-modal{max-height:90vh;margin:var(--bloom-space-sm)}.conversation-item{flex-direction:column;align-items:flex-start}.conversation-actions{margin-left:0;margin-top:var(--bloom-space-sm);align-self:flex-end}}.welcome-screen{flex:1;display:flex;align-items:center;justify-content:center;padding:var(--bloom-space-xl)}.welcome-content{text-align:center;max-width:500px}.welcome-logo{margin-bottom:var(--bloom-space-lg)}.welcome-title{font-size:32px;color:var(--bloom-primary-dark);margin-bottom:var(--bloom-space-sm)}.welcome-subtitle{font-size:18px;color:var(--bloom-text-secondary);margin-bottom:var(--bloom-space-xl)}.subject-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:var(--bloom-space-md)}.subject-card{display:flex;flex-direction:row;align-items:center;justify-content:flex-start;gap:var(--bloom-space-md);padding:var(--bloom-space-md) var(--bloom-space-lg);background-color:var(--bloom-surface);border-radius:var(--bloom-radius-lg);box-shadow:var(--bloom-shadow-md);transition:transform .2s,box-shadow .2s}.subject-card:hover{transform:translateY(-2px);box-shadow:var(--bloom-shadow-lg)}.subject-card:active{transform:translateY(0)}.subject-card-icon{display:flex;align-items:center;justify-content:center;flex-shrink:0}.subject-card-name{font-size:16px;font-weight:600;color:var(--bloom-text)}@media (max-width: 480px){.welcome-screen{padding:var(--bloom-space-md)}.welcome-title{font-size:24px}.subject-grid{grid-template-columns:1fr}.subject-card{padding:var(--bloom-space-sm) var(--bloom-space-md)}}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000;padding:var(--bloom-space-md);animation:fadeIn .15s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.dialog{background-color:var(--bloom-surface);border-radius:var(--bloom-radius-lg);width:100%;max-width:400px;box-shadow:0 10px 40px #0003;animation:slideIn .2s ease-out}@keyframes slideIn{0%{opacity:0;transform:scale(.95) translateY(-10px)}to{opacity:1;transform:scale(1) translateY(0)}}.dialog-header{display:flex;align-items:center;justify-content:space-between;padding:var(--bloom-space-md) var(--bloom-space-lg);border-bottom:1px solid var(--bloom-border)}.dialog-header h3{font-size:17px;font-weight:600;color:var(--bloom-text);margin:0}.dialog-close{width:32px;height:32px;border-radius:var(--bloom-radius-md);display:flex;align-items:center;justify-content:center;background-color:transparent;color:var(--bloom-text-secondary);transition:background-color .2s}.dialog-close:hover{background-color:var(--bloom-lightest)}.dialog-body{padding:var(--bloom-space-lg)}.dialog-body p{margin:0 0 var(--bloom-space-md);color:var(--bloom-text-secondary);line-height:1.5}.dialog-body p:last-child{margin-bottom:0}.dialog-input{width:100%;padding:var(--bloom-space-sm) var(--bloom-space-md);border:2px solid var(--bloom-border);border-radius:var(--bloom-radius-md);font-size:15px;color:var(--bloom-text);background-color:var(--bloom-background);transition:border-color .2s}.dialog-input:focus{outline:none;border-color:var(--bloom-primary)}.dialog-input::placeholder{color:var(--bloom-text-hint)}.dialog-actions{display:flex;gap:var(--bloom-space-sm);padding:var(--bloom-space-md) var(--bloom-space-lg);border-top:1px solid var(--bloom-border);background-color:var(--bloom-background);border-radius:0 0 var(--bloom-radius-lg) var(--bloom-radius-lg)}.dialog-btn{flex:1;padding:var(--bloom-space-sm) var(--bloom-space-md);border-radius:var(--bloom-radius-md);font-size:14px;font-weight:600;transition:background-color .2s,transform .1s}.dialog-btn:active{transform:scale(.98)}.dialog-btn.secondary{background-color:var(--bloom-lightest);color:var(--bloom-text-secondary)}.dialog-btn.secondary:hover{background-color:var(--bloom-faint)}.dialog-btn.primary{background-color:var(--bloom-primary);color:#fff}.dialog-btn.primary:hover{background-color:var(--bloom-primary-dark)}.dialog-btn.primary.danger{background-color:#e74c3c}.dialog-btn.primary.danger:hover{background-color:#c62828}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);padding:var(--bloom-space-sm) var(--bloom-space-lg);border-radius:var(--bloom-radius-xl);font-size:14px;font-weight:500;box-shadow:0 4px 20px #00000026;z-index:3000;animation:toastIn .3s ease-out}@keyframes toastIn{0%{opacity:0;transform:translate(-50%) translateY(20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.toast.success{background-color:var(--bloom-primary);color:#fff}.toast.error{background-color:#e74c3c;color:#fff}.toast.info{background-color:var(--bloom-text);color:#fff}@media (max-width: 480px){.dialog{margin:var(--bloom-space-sm)}.toast{left:var(--bloom-space-md);right:var(--bloom-space-md);transform:none}@keyframes toastIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}}.app{display:flex;flex-direction:column;min-height:100vh;min-height:-webkit-fill-available;background-color:var(--bloom-background)}.loading-screen{flex:1;display:flex;align-items:center;justify-content:center}.loading-spinner{width:40px;height:40px;border:3px solid var(--bloom-border);border-top-color:var(--bloom-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.app-main{flex:1;display:flex;flex-direction:column;overflow:hidden}@supports (padding-top: env(safe-area-inset-top)){.app{padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}}:root{--bloom-primary-dark: #2E7D32;--bloom-primary: #43A047;--bloom-primary-mid: #4CAF50;--bloom-light: #66BB6A;--bloom-soft: #81C784;--bloom-pale: #A5D6A7;--bloom-faint: #C8E6C9;--bloom-lightest: #E8F5E9;--bloom-accent: #FFC107;--bloom-accent-light: #FFECB3;--bloom-text: #212121;--bloom-text-secondary: #666666;--bloom-text-hint: #999999;--bloom-background: #FAFAFA;--bloom-surface: #FFFFFF;--bloom-border: #E0E0E0;--bloom-error: #F44336;--bloom-error-light: #FFEBEE;--bloom-shadow-sm: 0 1px 2px rgba(0, 0, 0, .08);--bloom-shadow-md: 0 2px 8px rgba(0, 0, 0, .1);--bloom-shadow-lg: 0 4px 16px rgba(0, 0, 0, .12);--bloom-radius-sm: 4px;--bloom-radius-md: 8px;--bloom-radius-lg: 16px;--bloom-radius-xl: 24px;--bloom-space-xs: 4px;--bloom-space-sm: 8px;--bloom-space-md: 16px;--bloom-space-lg: 24px;--bloom-space-xl: 32px;--bloom-touch-target: 44px;--safe-area-top: env(safe-area-inset-top);--safe-area-bottom: env(safe-area-inset-bottom)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;overscroll-behavior:none}body{font-family:Nunito,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.6;color:var(--bloom-text);background-color:var(--bloom-background);min-height:100vh;min-height:-webkit-fill-available}html{height:-webkit-fill-available}#root{min-height:100vh;min-height:-webkit-fill-available}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3}p{margin-bottom:var(--bloom-space-md)}p:last-child{margin-bottom:0}button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;min-height:var(--bloom-touch-target);min-width:var(--bloom-touch-target)}button:disabled{cursor:not-allowed;opacity:.5}:focus-visible{outline:2px solid var(--bloom-primary);outline-offset:2px}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bloom-border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--bloom-text-hint)}::selection{background:var(--bloom-pale)}