.sidebar{display:flex;flex-direction:column;height:100vh;overflow:hidden;padding:0}.sidebar-heading,.mobile-welcome{flex:0 0 auto}.mobile-welcome{padding:10px 4px 18px;text-align:center;margin-bottom:10px}.mobile-welcome-title{font-size:30px;line-height:1;font-weight:800;color:#0b0b0b;margin-bottom:8px;margin-top:-20px}.group-list{flex:1 1 auto;overflow-y:auto;padding:0 8px;margin:0}.group-card{display:flex;align-items:center;padding:12px 14px;margin-bottom:12px;border-radius:12px;background-color:#f9f9f9;box-shadow:0 2px 6px #0000000a;cursor:pointer;transition:background-color .2s ease}.group-icon{width:48px;height:48px;border-radius:50%;font-weight:700;font-size:1.1rem;color:#fff;display:flex;align-items:center;justify-content:center;background-color:#ddd;margin-right:14px;box-shadow:0 2px 8px #0000000f;flex-shrink:0}.group-name{font-size:1.1rem;font-weight:500;color:#222;flex-grow:1;word-break:break-word;white-space:normal;line-height:1.3}.add-group-button{width:64px;height:64px;border-radius:50%;background-color:#2f006b;color:#fff;font-size:2.2rem;border:none;cursor:pointer;display:flex;justify-content:center;align-items:center;box-shadow:0 8px 18px #2f006b2e;z-index:999;position:sticky;bottom:20px;left:50%;transform:translate(-50%);margin:0 auto}.icon-btn{background:transparent;border:none;cursor:pointer}@media (max-width: 768px){.sidebar{display:flex!important;flex-direction:column;width:100%!important;min-width:100%!important;height:100vh!important;padding:22px 18px;box-sizing:border-box;overflow-y:auto;position:relative;border-right:none;background:#fff}.sidebar-heading{position:static;font-size:10px;margin-bottom:6px;padding:0;text-align:center}.mobile-welcome{padding:36px 4px 18px;margin-bottom:10px;text-align:center}.group-list{margin-bottom:16px;padding-right:6px}.group-card{padding:12px;margin-bottom:10px}.group-name{font-size:1rem;line-height:1.4}.add-group-button{position:fixed;bottom:22px;right:20px;left:auto;transform:none;width:72px;height:72px;font-size:2.6rem;margin:0}}@media (min-width: 769px){.sidebar{position:relative}.add-group-button{position:absolute;bottom:20px;right:20px;left:auto!important;transform:none!important;margin:0!important}}.sidebar-heading{margin-bottom:8px}.mobile-welcome{margin-bottom:8px;padding-top:12px}.group-list{margin-top:4px}.sidebar{border-right:1px solid #ddd}.group-name{white-space:nowrap!important;overflow:hidden;text-overflow:ellipsis}.group-card{border-left:none!important}@media (min-width: 769px){.sidebar-heading{text-align:left;padding-left:22px;margin-left:0}}@media (max-width: 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#3b82f61f}.color-options{display:flex;gap:12px;align-items:center}.color-box{width:32px;height:32px;border-radius:50%;border:3px solid transparent;cursor:pointer;padding:0;outline:none;transition:transform .12s ease,border-color .12s ease;box-shadow:0 2px 6px #0206170f}.color-box:hover{transform:translateY(-3px)}.color-box.selected{border-color:#0f172a2e;transform:translateY(-3px) scale(1.04)}.modal-actions{margin-top:6px;display:flex;justify-content:flex-end}.create-button{padding:10px 18px;font-size:.95rem;font-weight:600;color:#fff;background-color:#1f6feb;border:none;border-radius:8px;cursor:pointer;box-shadow:0 8px 18px #1f6feb24;transition:background-color .12s ease,transform .08s ease,opacity .12s ease}.create-button:active{transform:translateY(1px)}.create-button:disabled{opacity:.56;cursor:not-allowed;box-shadow:none}@media (max-width: 480px){.modal-content{width:92%;padding:18px}.form-row{flex-direction:column;align-items:stretch;gap:8px}.form-label{width:100%;min-width:0}.form-field{width:100%}.modal-actions{justify-content:center}.create-button{width:100%;padding:14px 0;font-size:1.05rem;border-radius:10px}}.note-area{display:flex;flex-direction:column;height:100vh;width:100%;box-sizing:border-box;font-family:Segoe UI;margin:0;padding:0;overflow:hidden}.note-area-header{display:flex;align-items:center;padding:16px 20px;width:100%;color:#fff;font-weight:700;font-size:1.15rem;box-sizing:border-box}.header-left{display:flex;align-items:center;gap:12px}.group-avatar{width:36px;height:36px;border-radius:50%;background:#ffffff2e;color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}.group-name{font-size:18px;white-space:nowrap;color:#f0f8ff;font-weight:700}.note-body{display:flex;flex-direction:column;flex:1;background-color:#eaf4ff}.notes-list{flex:1;overflow-y:auto;padding:20px 28px;box-sizing:border-box}.note-item{background:#fff;border-radius:10px;padding:14px;margin-bottom:16px;box-shadow:0 6px 18px #00000012}.note-text{font-size:16px;color:#333;white-space:pre-wrap;word-break:break-word}.note-footer{display:flex;justify-content:flex-end;margin-top:8px}.note-timestamp{font-size:.8em;color:#030101;font-weight:700;text-align:right}.note-input-container{flex-shrink:0;padding:18px 0;background:inherit;box-sizing:border-box}.input-card{position:relative;margin:0 auto;width:calc(100% - 40px);max-width:1100px;background:#fff;border-radius:12px;padding:18px 94px 18px 18px;box-shadow:0 8px 28px #0000001f;box-sizing:border-box}.input-card textarea{width:100%;border:none;outline:none;resize:none;font-size:1.05rem;min-height:120px;background:transparent;color:#222}.icon-btn.send-button{position:absolute;bottom:12px;right:12px;width:32px;height:32px;background:none;border:none;color:#6b7280;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.send-button svg{transform:rotate(45deg);font-size:1.25rem}.icon-btn.send-button:not(:disabled):hover{color:#4b5563}.icon-btn.send-button:disabled{opacity:.4;cursor:not-allowed}.header-left{margin-left:19px}.app-container{display:flex;height:100vh;width:100%;overflow:hidden;box-sizing:border-box;font-family:Segoe UI,system-ui,-apple-system,Roboto,Helvetica Neue,Arial}.main-content{flex-grow:1;padding:20px;background-color:#dae5f5;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;position:relative;overflow-y:auto;box-sizing:border-box;min-width:0}.welcome-message h2{font-size:3em;margin-bottom:10px}.welcome-message p{font-size:1.2em;line-height:1.5;max-width:600px;margin:4px 0;color:#555}.encrypted-row,.end-to-end-encrypted{position:absolute;bottom:20px;left:50%;transform:translate(-50%);text-align:center;color:#4b5563;font-size:14px;display:inline-flex;align-items:center;gap:8px;z-index:5;white-space:nowrap}.note-area{display:flex;flex-direction:column;height:100%;width:100%;box-sizing:border-box;font-family:Segoe UI,system-ui,-apple-system,Roboto,Helvetica Neue,Arial;margin:0;padding:0;position:relative;overflow:hidden}.icon-btn{background-color:transparent;border:none;cursor:pointer;padding:4px;margin-left:8px;transition:transform .2s ease-in-out}.icon-btn:hover{transform:scale(1.1)}body.no-scroll{overflow:hidden;height:100%}@media (max-width: 900px){.app-container{flex-direction:row}.mobile-back-button{display:none}}@media (max-width: 768px){.app-container{flex-direction:column}.main-content{width:100%;min-height:0;padding:12px}.encrypted-row,.end-to-end-encrypted{position:static;transform:none;margin-top:16px;bottom:auto;left:auto}.notes-list,.note-input-container{padding:14px}.note-input-container .input-card{width:calc(100% - 28px);padding:14px 70px 14px 12px;border-radius:10px}.note-input-container textarea{min-height:100px;font-size:1rem}.icon-btn.send-button{width:48px;height:48px;right:14px;font-size:1rem}}html,body,#root{height:100%;margin:0;padding:0;box-sizing:border-box;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}*,*:before,*:after{box-sizing:inherit}.app-container{display:flex;width:100%;height:100vh;overflow:hidden;background:#fff}.sidebar{width:280px;min-width:220px;background:#fff;border-right:0px solid rgba(0,0,0,.03);display:flex;flex-direction:column;padding:28px 32px;gap:20px;box-sizing:border-box}.sidebar .group-list .group-card .group-name{color:#000!important;font-weight:700!important}.main-content{flex:1;display:flex;flex-direction:column;width:100%;height:100%;margin:0;padding:0;background-color:#dae5f5;position:relative;overflow:hidden}.main-content .content-inner{width:100%;height:100%;display:flex}.note-area{display:flex;flex-direction:column;height:100%;width:100%;box-sizing:border-box;font-family:Segoe UI,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;margin:0;padding:0;position:relative;overflow:hidden}.note-area-header{padding:16px 20px;color:#fff;font-size:1.15rem;font-weight:700;width:100%;box-sizing:border-box;margin:0}.note-body{display:flex;flex-direction:column;flex:1;overflow:hidden;background-color:#eaf4ff;width:100%}.notes-list{flex:1;overflow-y:auto;padding:20px 28px;background-color:transparent;box-sizing:border-box}.note-item{background-color:#fff;border-radius:10px;padding:14px;margin-bottom:16px;box-shadow:0 6px 18px #00000012;position:relative}.note-footer{display:flex;justify-content:flex-end;align-items:center;margin-top:8px}.note-timestamp{font-size:.8em;color:#0c0707;margin-bottom:10px}.note-text{color:#333;font-size:16px;margin-top:10px;white-space:pre-wrap;word-break:break-word}.note-edit{display:flex;flex-direction:column;gap:8px}.note-edit textarea{resize:none;padding:12px;font-size:1rem;border:1px solid #d1d1d1;border-radius:8px;min-height:110px}.note-input-container{flex-shrink:0;padding:18px 0;box-sizing:border-box;width:100%;background:inherit}.note-input-container .input-card{position:relative;margin:0 auto;width:calc(100% - 40px);max-width:1100px;background:#fff;border-radius:12px;padding:18px 94px 18px 18px;box-shadow:0 8px 28px #0000001f;box-sizing:border-box}.note-input-container textarea{width:100%;border:none;outline:none;resize:none;font-size:1.05rem;min-height:120px;line-height:1.45;background:transparent;color:#222}.input-card .icon-btn.send-button{position:absolute;bottom:12px;right:12px;width:32px;height:32px;padding:0;background:none;border:none;color:#6b7280;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}@media (max-width:768px){.note-area-header .header-left{gap:4px}.notes-list{padding:14px}.note-input-container{padding:14px 0}.note-input-container .input-card{width:calc(100% - 28px);padding:14px 70px 14px 12px;border-radius:10px}.note-input-container textarea{min-height:100px;font-size:1rem}.icon-btn.send-button{width:48px;height:48px;right:14px;font-size:1rem}}@media (max-width: 480px){.note-input-container .input-card{padding-right:62px}.note-input-container textarea{min-height:90px}.icon-btn.send-button{width:44px;height:44px;right:12px}}.main-content{position:relative}.mobile-back-button{display:none;position:absolute;top:14px;left:4px;width:40px;height:40px;background:none;border:none;color:#fff;font-size:1.4rem;cursor:pointer;z-index:1000;pointer-events:auto}@media (max-width: 768px){.mobile-back-button{display:inline-flex;align-items:center;justify-content:center}}