:root{--navy:#10234f;--navy2:#172d60;--ink:#142447;--muted:#71809d;--line:#e5ebf5;--blue:#526dff;--cyan:#64c7f1;--bg:#f6f8fc;--white:#fff;--green:#16a887;--amber:#eea334;--red:#e46670;--shadow:0 14px 48px rgba(33,56,103,.07)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}a{color:inherit}img{max-width:100%}h1,h2,h3,p{margin:0}.hidden{display:none!important}
.loading-screen{height:100vh;display:flex;align-items:center;justify-content:center;gap:14px;color:var(--muted);font-weight:600}.spinner{width:22px;height:22px;border:3px solid #dce5ff;border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.auth{min-height:100vh;display:grid;grid-template-columns:minmax(360px,1.03fr) minmax(430px,.97fr);background:white}.auth-art{position:relative;overflow:hidden;background:linear-gradient(135deg,#10234f 0%,#183775 52%,#516df4 100%);padding:52px 7vw;color:white;display:flex;flex-direction:column}.auth-art:before,.auth-art:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.12)}.auth-art:before{width:750px;height:750px;right:-490px;top:110px}.auth-art:after{width:480px;height:480px;right:-290px;top:245px}.brand-auth{display:flex;align-items:center;gap:13px;position:relative;z-index:1}.brand-mark{display:flex;align-items:center;justify-content:center;background:#fff;border-radius:12px;padding:4px 7px;width:170px;height:54px;overflow:hidden}.brand-mark img{width:100%;max-height:46px;object-fit:contain}.brand-sub{letter-spacing:.22em;text-transform:uppercase;font-size:10px;font-weight:800;opacity:.72}.auth-story{position:relative;z-index:1;margin:auto 0;max-width:610px}.eyebrow{font-size:11px;letter-spacing:.19em;text-transform:uppercase;font-weight:800;color:var(--blue)}.auth-art .eyebrow{color:#9fe1ff}.auth-story h1{font-size:clamp(42px,5vw,76px);line-height:1.04;letter-spacing:-.055em;margin:18px 0 24px}.auth-story p{font-size:18px;line-height:1.6;color:#cfdcf9;max-width:490px}.auth-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:42px}.auth-pill{padding:10px 14px;border:1px solid rgba(255,255,255,.2);border-radius:30px;background:rgba(255,255,255,.08);font-size:12px;font-weight:700}.auth-foot{position:relative;z-index:1;font-size:12px;color:#b6c8ef}.auth-form-area{display:flex;align-items:center;justify-content:center;padding:44px 6vw}.auth-card{width:min(440px,100%)}.auth-icon{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;color:#516dff;background:#edf1ff;margin-bottom:27px}.auth-card h2{font-size:33px;letter-spacing:-.04em;margin-bottom:9px}.auth-card>p{color:var(--muted);line-height:1.55;margin-bottom:32px}.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}.field label{font-size:12px;font-weight:800;color:#3f4e6b}.field input,.field select,.field textarea,.input{width:100%;border:1px solid #dce4f1;border-radius:11px;background:#fff;color:var(--ink);padding:12px 14px;min-height:44px;outline:0;transition:border .2s,box-shadow .2s}.field textarea{min-height:90px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus,.input:focus{border-color:#7990ff;box-shadow:0 0 0 3px #eef1ff}.field-hint{color:var(--muted);font-size:11px}.btn{border:0;border-radius:10px;padding:11px 16px;min-height:40px;background:var(--blue);color:white;font-weight:750;font-size:13px;display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 6px 16px rgba(82,109,255,.18);transition:transform .15s,background .15s}.btn:hover{background:#3c57ef;transform:translateY(-1px)}.btn.primary-wide{width:100%;padding:14px;margin-top:8px}.btn.secondary{background:#edf1ff;color:#415bd9;box-shadow:none}.btn.secondary:hover{background:#e1e8ff}.btn.ghost{background:transparent;color:#53617c;box-shadow:none;border:1px solid #dae3f2}.btn.ghost:hover{background:#f4f7fc}.btn.danger{background:#fff1f2;color:#cf5360;box-shadow:none}.btn.tiny{font-size:11px;padding:7px 10px;min-height:30px;border-radius:8px}.auth-note{margin-top:24px;border-top:1px solid var(--line);padding-top:20px;color:var(--muted);font-size:12px;line-height:1.5}
.shell{min-height:100vh;display:flex}.sidebar{width:255px;flex:0 0 255px;background:#10234f;color:#d9e4ff;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;padding:28px 16px 18px;z-index:5;overflow-y:auto}.side-brand{display:flex;align-items:center;gap:10px;padding:0 12px 33px}.side-brand .brand-mark{width:143px;height:46px;border-radius:9px}.side-caption{font-size:9px;text-transform:uppercase;letter-spacing:.18em;color:#93a8d6;font-weight:800;padding:0 14px;margin:14px 0 10px}.nav{display:flex;flex-direction:column;gap:5px}.nav-btn{border:0;background:transparent;color:#b7c5e8;border-radius:10px;text-align:left;width:100%;display:flex;gap:12px;align-items:center;padding:12px 13px;font-size:13px;font-weight:650;transition:background .15s,color .15s}.nav-btn:hover{background:#1e376f;color:#fff}.nav-btn.active{color:#fff;background:#334b91;box-shadow:inset 3px 0 #86d7ff}.nav-btn svg{width:18px;height:18px;opacity:.9}.sidebar-bottom{margin-top:auto}.side-help{margin:20px 8px 14px;padding:17px;background:linear-gradient(140deg,#29478b,#4a66d9);border-radius:13px;color:#fff}.side-help strong{display:block;font-size:13px;margin-bottom:6px}.side-help p{font-size:11px;line-height:1.5;color:#d5e4ff}.side-help .spark{font-size:26px;margin-bottom:10px}.side-profile{display:flex;align-items:center;gap:10px;padding:13px 11px 0;border-top:1px solid #2b416e}.avatar{width:36px;height:36px;flex:0 0 36px;border-radius:11px;background:#e7ecff;color:#4a61cf;display:grid;place-items:center;font-weight:800;font-size:13px}.side-profile .avatar{background:#6482dc;color:#fff}.side-profile strong{font-size:12px;color:#fff;display:block;max-width:130px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.side-profile small{display:block;color:#9fb1dc;text-transform:capitalize;font-size:11px;margin-top:3px}.side-profile button{margin-left:auto;color:#b7c5e8;background:none;border:0;font-size:18px}
.main{flex:1;min-width:0}.topbar{height:77px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 clamp(22px,3.3vw,56px);gap:14px}.top-left{display:flex;align-items:center;gap:15px}.mobile-menu{display:none;border:0;background:none;color:var(--navy);font-size:24px}.breadcrumb{font-size:12px;font-weight:700;color:#8997b0}.top-actions{display:flex;align-items:center;gap:14px;color:#667594;font-size:12px}.top-date{display:flex;align-items:center;gap:7px}.timezone-chip{background:#f2f5fc;border:1px solid #e7ecf6;border-radius:20px;padding:8px 11px;color:#536686;font-weight:650}.content{max-width:1580px;margin:0 auto;padding:36px clamp(22px,3.3vw,56px) 70px}.page-intro{display:flex;align-items:end;justify-content:space-between;gap:22px;margin-bottom:28px}.page-intro h1{font-size:31px;letter-spacing:-.045em;margin:5px 0 7px}.page-intro p{color:var(--muted);font-size:13px;line-height:1.5}.page-actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap}.grid{display:grid;gap:18px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-main{grid-template-columns:minmax(0,1.7fr) minmax(280px,1fr)}.metric{background:#fff;border:1px solid #e9eef7;border-radius:15px;padding:20px 22px;box-shadow:var(--shadow)}.metric .icon{width:34px;height:34px;border-radius:10px;background:#eef1ff;color:#536dff;display:grid;place-items:center;font-size:18px;margin-bottom:21px}.metric:nth-child(2) .icon{background:#e9f8f5;color:#16a887}.metric:nth-child(3) .icon{background:#fef3e6;color:#eaa037}.metric:nth-child(4) .icon{background:#eef4ff;color:#3994d7}.metric small{display:block;font-size:11px;color:var(--muted);font-weight:700;margin-bottom:7px}.metric strong{font-size:27px;letter-spacing:-.04em}.metric em{font-size:11px;color:#17a985;font-style:normal;font-weight:700;margin-left:6px}.hero-card{position:relative;overflow:hidden;border-radius:18px;background:linear-gradient(113deg,#18346e 0%,#3153b6 68%,#5f82fb 100%);color:#fff;padding:29px 32px;min-height:205px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 16px 32px #274ba828}.hero-card:after{content:"";position:absolute;width:270px;height:270px;border:1px solid #ffffff35;border-radius:50%;right:-85px;top:-115px;box-shadow:0 0 0 55px #ffffff0d,0 0 0 110px #ffffff09}.hero-card .eyebrow{color:#a9e9ff}.hero-card h2{font-size:27px;letter-spacing:-.04em;max-width:460px;margin:8px 0 9px}.hero-card p{color:#dbe5ff;font-size:12px;line-height:1.6;max-width:450px}.hero-card .btn{background:#fff;color:#2947a1;margin-top:19px;position:relative;z-index:1;box-shadow:none}.hero-orb{width:115px;height:115px;border-radius:28px;background:linear-gradient(135deg,#8ae5ff,#6e8cff);transform:rotate(-12deg);display:grid;place-items:center;font-size:56px;position:relative;z-index:1;box-shadow:0 16px 30px #193d9a50;margin-right:42px;flex:0 0 115px}.panel{background:#fff;border:1px solid #e9eef7;border-radius:15px;box-shadow:var(--shadow);overflow:hidden}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:22px 23px 15px;gap:15px}.panel-head h2{font-size:16px;letter-spacing:-.02em}.panel-head p{font-size:11px;color:var(--muted);margin-top:3px}.link-button{border:0;background:none;color:var(--blue);font-size:12px;font-weight:800}.lesson-list{padding:0 23px 8px}.lesson-row{display:flex;align-items:center;gap:14px;border-top:1px solid #eef1f7;padding:15px 0}.date-badge{width:50px;flex:0 0 50px;text-align:center;background:#eef2ff;border-radius:9px;color:#536dff;padding:7px 2px}.date-badge strong{font-size:16px;display:block}.date-badge small{font-size:9px;font-weight:800;text-transform:uppercase}.lesson-row-content{flex:1;min-width:0}.lesson-row-content strong{display:block;font-size:12px;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lesson-row-content span{display:block;color:var(--muted);font-size:11px}.lesson-row .btn{white-space:nowrap}.badge{display:inline-flex;align-items:center;gap:5px;border-radius:30px;padding:5px 9px;font-size:10px;font-weight:800;white-space:nowrap;background:#edf0f7;color:#73829e}.badge.scheduled{background:#eaf1ff;color:#4b77d3}.badge.completed,.badge.present{background:#e4f8f1;color:#159b78}.badge.cancelled,.badge.absent{background:#fff0f1;color:#d35b68}.badge.late{background:#fff3e2;color:#dc962d}.badge.unmarked{background:#f1f3f7;color:#8b99ae}.empty{padding:36px 23px;text-align:center;color:var(--muted);font-size:12px;line-height:1.5}.empty .empty-icon{font-size:30px;margin-bottom:10px}.person-line{display:flex;align-items:center;gap:10px;padding:12px 0;border-top:1px solid #eef1f7}.person-line .avatar{background:#edf3ff}.person-line strong{font-size:12px;display:block}.person-line small{font-size:10px;color:var(--muted);display:block;margin-top:2px}.person-line .badge{margin-left:auto}.insight{padding:18px 22px;background:#f4f6ff;margin:0 22px 22px;border-radius:11px;color:#5067b9;font-size:11px;line-height:1.5}.insight strong{color:#2543a4}
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:17px}.toolbar-group{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.toolbar select,.toolbar input{border:1px solid #dfe6f2;border-radius:9px;background:#fff;padding:9px 11px;color:#41506d;font-size:12px;min-height:39px;max-width:280px}.toolbar .date-nav{font-weight:800;color:#344663;font-size:13px;min-width:185px;text-align:center}.week-layout{display:grid;grid-template-columns:minmax(0,1fr) 258px;gap:18px}.calendar{display:grid;grid-template-columns:repeat(7,minmax(100px,1fr));background:#fff;border:1px solid #e7ecf5;border-radius:14px;overflow:hidden;min-height:515px;box-shadow:var(--shadow)}.cal-day{border-right:1px solid #edf1f7;min-width:0}.cal-day:last-child{border:0}.cal-head{background:#fafbfe;border-bottom:1px solid #edf1f7;padding:14px 11px}.cal-head small{display:block;text-transform:uppercase;font-size:10px;font-weight:800;color:#9aa7bb;letter-spacing:.08em;margin-bottom:4px}.cal-head strong{font-size:20px;letter-spacing:-.04em}.cal-day.today .cal-head{background:#eff3ff}.cal-day.today .cal-head strong{color:var(--blue)}.cal-body{padding:9px;min-height:440px}.cal-event{width:100%;text-align:left;background:#eef2ff;color:#2c4bad;border:0;border-left:3px solid #6079f8;border-radius:8px;padding:9px 7px;margin-bottom:8px}.cal-event:hover{background:#e2e9ff}.cal-event strong,.cal-event span,.cal-event small{display:block}.cal-event strong{font-size:10px;line-height:1.3;margin:4px 0}.cal-event span,.cal-event small{font-size:9px;opacity:.8}.cal-event.cancelled{background:#f5f6f8;border-color:#bdc5d5;color:#8e9ab0}.cal-slot{font-size:9px;color:#2d9f8e;background:#edfaf7;border-radius:6px;padding:5px 6px;margin-bottom:5px}.cal-empty{font-size:10px;color:#c1cad9;text-align:center;padding-top:30px}.aside-card{background:#fff;border:1px solid #e9eef7;border-radius:14px;padding:20px;box-shadow:var(--shadow)}.aside-card h3{font-size:14px;margin-bottom:7px}.aside-card p{font-size:11px;color:var(--muted);line-height:1.55;margin-bottom:16px}.aside-card + .aside-card{margin-top:16px}.time-callout{background:#f1f5ff;border-radius:10px;padding:12px;margin:14px 0;font-size:11px;line-height:1.5;color:#3d58a1}.availability-line{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px solid #edf1f7;font-size:11px}.availability-line:last-child{border:0}.availability-line strong{color:#45536e}.availability-line span{color:#71809d}
.table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse;text-align:left;min-width:650px}.data-table th{background:#fbfcfe;color:#8c9ab2;text-transform:uppercase;font-size:10px;letter-spacing:.08em;font-weight:800;padding:14px 20px}.data-table td{border-top:1px solid #edf1f7;padding:16px 20px;font-size:12px;color:#53617a;vertical-align:middle}.data-table tr:hover td{background:#fcfdff}.table-name{display:flex;align-items:center;gap:10px}.table-name strong{font-size:12px;color:var(--ink);display:block}.table-name small{font-size:10px;color:#9ba8bb;display:block;margin-top:2px}.table-actions{display:flex;gap:6px;flex-wrap:wrap}.filter-pills{display:flex;align-items:center;gap:7px;flex-wrap:wrap}.pill{border:1px solid #dfe6f2;border-radius:20px;background:#fff;color:#7886a0;font-weight:700;font-size:11px;padding:8px 12px}.pill.active{background:#eaf0ff;color:#405dc8;border-color:#cbd8ff}.section-gap{margin-top:20px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.modal-backdrop{position:fixed;inset:0;background:#0a1934ad;z-index:30;display:flex;align-items:center;justify-content:center;padding:18px}.modal{width:min(650px,100%);max-height:92vh;overflow:auto;background:white;border-radius:18px;box-shadow:0 25px 80px #091c4a55}.modal-head{display:flex;justify-content:space-between;align-items:start;border-bottom:1px solid var(--line);padding:22px 26px}.modal-head h2{font-size:20px;letter-spacing:-.03em}.modal-head p{font-size:11px;color:var(--muted);margin-top:4px}.icon-btn{border:0;background:#f2f5fa;border-radius:8px;color:#72809b;width:30px;height:30px;font-size:20px;display:grid;place-items:center}.modal-body{padding:24px 26px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}.form-note{background:#f3f6fc;color:#60718c;font-size:11px;padding:11px 12px;border-radius:9px;line-height:1.5;margin-bottom:16px}.checkline{display:flex;align-items:center;gap:8px;font-size:12px;color:#53617a;margin:7px 0 19px}.checkline input{accent-color:var(--blue)}#toast-root{position:fixed;right:22px;bottom:20px;z-index:100;display:flex;flex-direction:column;gap:9px}.toast{background:#173467;color:#fff;border-radius:10px;box-shadow:0 12px 35px #182e5e50;padding:12px 15px;font-size:12px;font-weight:700;max-width:340px}.toast.error{background:#b94153}
.availability-editor{display:flex;flex-direction:column;gap:10px}.slot-row{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:10px;align-items:center}.slot-row select,.slot-row input{border:1px solid #dfe6f2;border-radius:8px;padding:8px 9px;font-size:12px;width:100%}.help-text{font-size:11px;color:var(--muted);line-height:1.6}.room-page{min-height:calc(100vh - 77px);margin:-36px clamp(-56px,-3.3vw,-22px) -70px;background:#0c1831;color:white;padding:26px clamp(22px,3vw,46px)}.room-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px}.room-head h1{font-size:22px}.room-head p{color:#9cacd1;font-size:12px;margin-top:4px}.room-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:16px;height:calc(100vh - 195px);min-height:520px}.video-stage{position:relative;background:#14264c;border:1px solid #273c67;border-radius:15px;overflow:hidden;display:flex;align-items:center;justify-content:center}.video-stage video{width:100%;height:100%;object-fit:cover}.video-placeholder{text-align:center;color:#9caed0}.video-placeholder .big-avatar{width:90px;height:90px;border-radius:25px;background:#2d4781;display:grid;place-items:center;font-size:39px;color:#d3e0ff;margin:0 auto 16px}.local-video{position:absolute;right:20px;bottom:84px;width:180px;height:125px;border:2px solid #91a7db;border-radius:12px;background:#0a1530;object-fit:cover!important;box-shadow:0 10px 30px #020a1e9a;transform:scaleX(-1)}.video-controls{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:10px;background:#08142ccb;border:1px solid #ffffff21;padding:8px;border-radius:16px}.control{width:43px;height:43px;background:#2b3f68;color:#fff;border:0;border-radius:11px;font-size:19px;display:grid;place-items:center}.control.off,.control.leave{background:#c6485a}.room-chat{background:#fff;color:var(--ink);border-radius:14px;display:flex;flex-direction:column;overflow:hidden}.chat-head{padding:17px 18px;border-bottom:1px solid var(--line);font-size:13px;font-weight:800}.chat-feed{flex:1;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.chat-message{align-self:flex-start;background:#f1f4fa;border-radius:10px 10px 10px 2px;padding:9px 11px;max-width:90%;font-size:11px;line-height:1.4}.chat-message.mine{align-self:flex-end;background:#eaf0ff;border-radius:10px 10px 2px 10px}.chat-message strong{display:block;font-size:10px;margin-bottom:4px;color:#506bd1}.chat-input{display:flex;gap:6px;padding:13px;border-top:1px solid var(--line)}.chat-input input{min-width:0;flex:1;border:1px solid #dfe6f2;border-radius:8px;padding:9px;font-size:11px}.chat-input button{border:0;border-radius:8px;padding:0 12px;background:var(--blue);color:white;font-weight:800}.room-status{position:absolute;top:18px;left:18px;padding:8px 11px;background:#0a1732a8;border-radius:8px;font-size:11px;color:#dae7ff}
@media(max-width:1200px){.grid-4{grid-template-columns:repeat(2,1fr)}.week-layout{grid-template-columns:1fr}.calendar{overflow:auto}.cal-day{min-width:120px}.calendar-aside{display:grid;grid-template-columns:1fr 1fr;gap:15px}.aside-card+.aside-card{margin:0}.hero-orb{margin-right:10px}}
@media(max-width:880px){.sidebar{position:fixed;left:-270px;transition:left .2s;box-shadow:15px 0 30px #0d1d3a30}.sidebar.open{left:0}.mobile-menu{display:block}.auth{grid-template-columns:1fr}.auth-art{min-height:300px;padding:30px}.auth-story{margin:35px 0}.auth-story h1{font-size:40px}.auth-pills,.auth-foot{display:none}.auth-form-area{padding:45px 25px}.grid-main{grid-template-columns:1fr}.content{padding:28px 22px 50px}.room-page{margin:-28px -22px -50px}.room-grid{grid-template-columns:1fr;height:auto}.video-stage{height:450px}.room-chat{height:300px}}
@media(max-width:600px){.topbar{height:62px;padding:0 17px}.top-date{display:none}.timezone-chip{font-size:10px}.page-intro{align-items:start;flex-direction:column}.page-intro h1{font-size:27px}.grid-4,.two-col,.form-grid{grid-template-columns:1fr}.hero-card{padding:25px}.hero-orb{display:none}.calendar-aside{grid-template-columns:1fr}.slot-row{grid-template-columns:1fr 1fr auto}.slot-row select{grid-column:1/-1}.room-page{margin-top:-28px}.room-head{align-items:start}.room-grid{min-height:0}.video-stage{height:400px}.local-video{width:110px;height:80px;bottom:80px}.room-chat{height:260px}.modal-body,.modal-head{padding:19px}.top-actions{gap:4px}}
.badge.active{background:#e4f8f1;color:#159b78}.badge.inactive{background:#fff0f1;color:#d35b68}

/* Visual refinement: stronger brand, clearer type, and purposeful motion. */
:root{--navy:#0d204c;--navy2:#173771;--ink:#14254a;--muted:#647590;--blue:#4e6bfd;--bg:#f5f7fc;--shadow:0 18px 50px rgba(25,48,98,.065)}
body{background:var(--bg)}
.auth{grid-template-columns:minmax(0,1.07fr) minmax(430px,.93fr)}
.auth-art{background:radial-gradient(circle at 82% 10%,rgba(122,171,255,.38),transparent 30%),radial-gradient(circle at 0% 100%,rgba(45,110,213,.35),transparent 34%),linear-gradient(137deg,#0b1f4a 2%,#173775 54%,#4764e9 100%);padding:clamp(30px,4vw,60px) clamp(32px,5vw,78px)}
.auth-art:before{width:660px;height:660px;right:-315px;top:12%;border-color:#ffffff16;box-shadow:0 0 0 76px #ffffff07,0 0 0 155px #ffffff04}
.auth-art:after{width:270px;height:270px;right:-112px;top:37%;border-color:#ffffff21;box-shadow:0 0 80px #9ac7ff1c}
.brand-auth{gap:20px;align-items:center}
.brand-mark{width:220px;height:88px;border-radius:16px;padding:3px 7px;box-shadow:0 14px 34px rgba(0,12,48,.19),inset 0 0 0 1px #ffffffcb;transition:transform .3s ease,box-shadow .3s ease}
.brand-mark:hover{transform:translateY(-3px) scale(1.025);box-shadow:0 19px 40px rgba(0,12,48,.25)}
.brand-mark img{width:100%;height:100%;max-height:none;object-fit:contain}
.brand-sub{display:flex;flex-direction:column;gap:5px;opacity:1;letter-spacing:0}
.brand-sub strong{font-size:13px;font-weight:800;letter-spacing:.11em;color:#f4f8ff}
.brand-sub span{font-size:9px;font-weight:800;letter-spacing:.19em;color:#a8cdfb}
.auth-story{max-width:650px;margin:auto 0;padding:45px 0 35px}
.auth-story h1{font-size:clamp(46px,5.3vw,76px);letter-spacing:-.058em;line-height:1.055;margin:15px 0 21px;text-wrap:balance}
.auth-story p{max-width:560px;font-size:17px;line-height:1.65;color:#dce6fa}
.connection-card{width:min(520px,100%);margin-top:36px;padding:19px 22px 16px;border:1px solid rgba(255,255,255,.22);border-radius:19px;background:linear-gradient(140deg,rgba(255,255,255,.15),rgba(255,255,255,.075));box-shadow:0 25px 55px rgba(5,19,54,.23),inset 0 1px rgba(255,255,255,.16);backdrop-filter:blur(12px);transition:transform .3s ease,background .3s ease}
.connection-card:hover{transform:translateY(-5px);background:linear-gradient(140deg,rgba(255,255,255,.2),rgba(255,255,255,.095))}
.connection-header{display:flex;align-items:center;gap:9px;color:#e7efff;font-size:11px;font-weight:750;letter-spacing:.03em}
.live-indicator{width:8px;height:8px;flex:0 0 8px;background:#6de9cb;border-radius:50%;box-shadow:0 0 0 5px #6de9cb24,0 0 14px #6de9cb9c;animation:softPulse 2.6s infinite}
.connection-stars{margin-left:auto;color:#b7e6ff;font-size:19px}
.connection-body{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:21px 14px 16px}
.connection-person{display:flex;align-items:center;gap:11px;color:#fff;font-size:12px}
.connection-avatar{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;color:#1b3a78;font-size:19px;font-weight:900;background:#d9efff;box-shadow:0 6px 18px #091c4655}
.tutor-avatar{background:#cae1ff;color:#3555ad}
.connection-link{display:flex;align-items:center;justify-content:center;gap:8px;flex:1;color:#a9dfff}
.connection-link span{height:1px;min-width:15px;max-width:55px;flex:1;background:linear-gradient(90deg,#d9f3ff28,#d9f3ffb6)}
.connection-link span:last-child{transform:rotate(180deg)}
.connection-link b{font-size:20px;font-weight:500;text-shadow:0 0 15px #bceaff}
.connection-footer{display:flex;justify-content:space-between;gap:10px;border-top:1px solid #ffffff27;padding-top:13px;color:#c5dafa;font-size:10px;font-weight:700}
.auth-foot{color:#afc6ee;font-size:11px;letter-spacing:.02em}
.auth-form-area{background:linear-gradient(145deg,#ffffff 55%,#f7f9ff);padding:55px clamp(30px,5vw,85px)}
.auth-card{width:min(455px,100%);animation:riseIn .6s both}
.auth-icon{width:48px;height:48px;border-radius:15px;margin-bottom:23px;background:linear-gradient(135deg,#e9edff,#edf8ff);color:#4e6bfd;box-shadow:0 8px 25px #526dff14;font-size:23px}
.auth-card h2{font-size:clamp(30px,2.8vw,39px);line-height:1.15;letter-spacing:-.045em;margin-top:7px;margin-bottom:13px}
.auth-card>p{font-size:14px;line-height:1.65;max-width:390px;margin-bottom:23px}
.role-track{display:flex;align-items:center;gap:12px;color:#5b6b8c;font-size:11px;font-weight:800;letter-spacing:.03em;margin:0 0 31px}
.role-track span{background:#eff3fb;padding:7px 10px;border-radius:30px}
.role-track i{width:4px;height:4px;border-radius:50%;background:#a2b4dc}
.field{gap:9px;margin-bottom:20px}
.field label{font-size:12px;color:#2f4164;letter-spacing:.015em}
.field input,.field select,.field textarea,.input{border-color:#d7e0ef;border-radius:12px;min-height:48px;padding:13px 15px;font-size:13px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#b6c6e9;background:#fcfdff}
.field input:focus,.field select:focus,.field textarea:focus,.input:focus{border-color:#6b84ff;box-shadow:0 0 0 4px #e8eeff;background:#fff}
.password-wrap{position:relative}
.password-wrap input{padding-right:71px}
.password-wrap button{position:absolute;right:7px;top:50%;transform:translateY(-50%);border:0;background:transparent;color:#5169c8;font-size:11px;font-weight:850;padding:9px 11px;border-radius:8px}
.password-wrap button:hover{background:#eff2ff}
.btn{background:linear-gradient(125deg,#4767f7,#6479fa);border-radius:11px;box-shadow:0 9px 21px rgba(71,103,247,.19);transition:transform .2s ease,box-shadow .2s ease,background .2s ease,filter .2s ease}
.btn:hover{background:linear-gradient(125deg,#3659ec,#566cf0);transform:translateY(-2px);box-shadow:0 13px 24px rgba(71,103,247,.24)}
.btn:active{transform:translateY(0) scale(.985);box-shadow:0 4px 9px rgba(71,103,247,.14)}
.btn.primary-wide{min-height:51px;font-size:14px;margin-top:11px;justify-content:space-between;padding:0 18px}
.btn.primary-wide span{width:26px;height:26px;display:grid;place-items:center;background:#ffffff25;border-radius:7px;font-size:17px;transition:transform .2s ease}
.btn.primary-wide:hover span{transform:translateX(3px)}
.btn.secondary{background:#ebefff;box-shadow:none}
.btn.ghost{background:transparent;box-shadow:none}
.btn.danger{background:#fff1f2;box-shadow:none}
.auth-note{margin-top:29px;padding-top:19px;font-size:12px;line-height:1.6}
.sidebar{width:263px;flex-basis:263px;background:linear-gradient(180deg,#0d204b,#10295a 70%,#132d5c);padding:23px 16px 18px}
.side-brand{display:flex;flex-direction:column;align-items:flex-start;gap:11px;padding:0 8px 30px}
.side-brand .brand-mark{width:205px;height:82px;border-radius:14px}
.side-brand-caption{font-size:9px;font-weight:850;letter-spacing:.25em;color:#a9c0ef;padding-left:8px}
.side-caption{font-size:10px;color:#819ed4;margin-top:7px}
.nav{gap:6px}
.nav-btn{font-size:13px;min-height:45px;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease}
.nav-btn:hover{transform:translateX(3px);background:#233f7a}
.nav-btn.active{background:linear-gradient(100deg,#3856a2,#304b91);box-shadow:inset 3px 0 #7ee0ff,0 8px 18px #071a3c30}
.side-help{background:linear-gradient(145deg,#254381,#4163c8);box-shadow:0 13px 28px #061c4338}
.side-profile button{width:30px;height:30px;border-radius:8px;transition:background .2s,color .2s}
.side-profile button:hover{background:#29467c;color:#fff}
.topbar{box-shadow:0 2px 17px #23365a06}
.content>.page-intro,.content>.grid,.content>.toolbar,.content>.panel,.content>.two-col,.content>.week-layout{animation:riseIn .42s both}
.content>.grid{animation-delay:.05s}.content>.week-layout,.content>.panel,.content>.two-col{animation-delay:.08s}
.page-intro h1{font-size:34px}
.page-intro p{font-size:14px}
.metric{border-radius:17px;padding:23px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.metric:hover{transform:translateY(-5px);border-color:#d8e4ff;box-shadow:0 21px 40px rgba(31,58,121,.11)}
.metric small{font-size:12px}
.metric strong{font-size:30px}
.panel,.aside-card{border-radius:17px}
.panel-head h2{font-size:17px}
.panel-head p,.aside-card p{font-size:12px}
.lesson-row{transition:background .2s ease,transform .2s ease}
.lesson-row:hover{transform:translateX(3px);background:#fbfcff}
.lesson-row-content strong{font-size:13px}
.lesson-row-content span,.data-table td{font-size:12px}
.cal-event{transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
.cal-event:hover{transform:translateY(-2px);box-shadow:0 7px 16px #4b69d329}
.pill{transition:background .2s ease,border-color .2s ease,transform .2s ease}
.pill:hover{transform:translateY(-2px);border-color:#bbccfb}
.avatar{transition:transform .2s ease,box-shadow .2s ease}
.avatar:hover{transform:scale(1.06);box-shadow:0 5px 12px #6e87d52a}
.modal-backdrop{backdrop-filter:blur(5px);animation:fadeIn .2s both}
.modal{animation:modalIn .24s both}
.toast{animation:toastIn .28s both}
.auth-pill{transition:transform .2s ease,background .2s ease}
.auth-pill:hover{transform:translateY(-3px);background:#ffffff24}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #80cfff;outline-offset:2px}
@keyframes riseIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes modalIn{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}
@keyframes toastIn{from{opacity:0;transform:translateX(16px)}to{opacity:1;transform:translateX(0)}}
@keyframes softPulse{50%{box-shadow:0 0 0 8px #6de9cb12,0 0 19px #6de9cbd6}}
@media(max-width:1060px){.brand-auth{gap:12px}.brand-auth .brand-mark{width:180px;height:74px}.brand-sub strong{font-size:11px}.brand-sub span{font-size:8px}.connection-card{margin-top:28px}}
@media(max-width:880px){.auth{grid-template-columns:1fr}.auth-art{min-height:355px;padding:30px 36px}.auth-story{padding:30px 0 15px;margin:0}.auth-story h1{max-width:620px;font-size:clamp(37px,6vw,50px)}.auth-story p{font-size:15px}.connection-card{display:none}.auth-foot{display:none}.auth-form-area{padding:45px 32px}.sidebar{left:-275px}.side-brand .brand-mark{width:205px;height:82px}}
@media(max-width:600px){.auth-art{min-height:325px;padding:25px 25px 29px}.brand-auth{gap:12px}.brand-auth .brand-mark{width:156px;height:64px;border-radius:12px}.brand-sub strong{font-size:10px}.brand-sub span{font-size:7px;letter-spacing:.1em}.auth-story{padding:35px 0 0}.auth-story h1{font-size:38px;line-height:1.08;margin:11px 0 13px}.auth-story p{font-size:14px;line-height:1.55}.auth-form-area{padding:40px 24px 55px}.auth-card h2{font-size:31px}.auth-card>p{font-size:13px}.page-intro h1{font-size:29px}.metric{padding:19px}.metric strong{font-size:27px}}
@media(max-width:410px){.brand-sub{display:none}.auth-story h1{font-size:35px}.auth-art{min-height:305px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
.sidebar{scrollbar-width:none}
.sidebar::-webkit-scrollbar{display:none}
.content>.page-intro,.content>.grid,.content>.toolbar,.content>.panel,.content>.two-col,.content>.week-layout{animation:none}
.modal-backdrop{backdrop-filter:none}
.calendar{min-height:430px}
.cal-body{min-height:350px}
.cal-slot{font-size:10px;line-height:1.35;padding:7px 7px}
.slot-suggestions{margin:17px 0 21px}
.slot-suggestions-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:9px}
.slot-suggestions-head strong{font-size:12px;color:#304262}
.slot-suggestions-head span{font-size:10px;color:#8392ac}
.suggestion-list{display:flex;flex-wrap:wrap;gap:8px}
.suggestion{border:1px solid #d9e4f5;background:#f6f9ff;border-radius:10px;color:#405b9d;padding:10px 12px;text-align:left;min-width:145px;transition:transform .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease}
.suggestion:hover{transform:translateY(-2px);border-color:#92a9f6;background:#edf3ff;box-shadow:0 8px 17px #4264cb15}
.suggestion strong,.suggestion span{display:block}
.suggestion strong{font-size:11px;margin-bottom:3px}
.suggestion span{font-size:10px;color:#7085b4}
.suggestion.selected{background:#e7eeff;border-color:#6f8af6;box-shadow:inset 0 0 0 1px #6f8af6}
@media(max-width:1550px){.week-layout{grid-template-columns:1fr}.calendar-aside{display:grid;grid-template-columns:1fr 1fr;gap:16px}.aside-card+.aside-card{margin:0}}
@media(max-width:700px){.calendar-aside{grid-template-columns:1fr}.suggestion{flex:1;min-width:125px}}
.calendar-scroll-hint{display:none;color:#7082a3;font-size:11px;font-weight:750;margin:-3px 0 10px}
.cal-event strong{font-size:11px}
.cal-event span,.cal-event small{font-size:10px}
.modal-actions{position:sticky;bottom:-24px;z-index:2;background:linear-gradient(180deg,#ffffffed,#fff 28%);padding:16px 0 2px}
@media(max-width:880px){.calendar-scroll-hint{display:block}}
.classroom-hero{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1fr) 310px;align-items:center;min-height:310px;border-radius:23px;padding:36px 48px;background:radial-gradient(circle at 83% 41%,#4868cf 0,#2d4dad 27%,transparent 55%),linear-gradient(115deg,#112654,#1c397b 58%,#3959bd);color:#fff;box-shadow:0 20px 50px #1e397d28;margin-bottom:20px}
.classroom-hero:before{content:"";position:absolute;width:560px;height:560px;right:-220px;top:-210px;border:1px solid #ffffff1b;border-radius:50%;box-shadow:0 0 0 75px #ffffff09,0 0 0 150px #ffffff07}
.classroom-hero-copy{position:relative;z-index:2;max-width:620px}.classroom-live{display:inline-flex;align-items:center;gap:8px;letter-spacing:.16em;font-size:10px;font-weight:850;color:#adf5e6}.classroom-live span{width:8px;height:8px;border-radius:50%;background:#61e6be;box-shadow:0 0 0 5px #61e6be26;animation:softPulse 2.8s infinite}.classroom-hero h2{font-size:clamp(29px,3vw,43px);line-height:1.13;letter-spacing:-.05em;margin:17px 0 12px;max-width:590px}.classroom-hero p{font-size:13px;line-height:1.7;color:#d3e0ff;max-width:470px}.classroom-hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}.classroom-hero .btn{background:#fff;color:#234697;box-shadow:0 10px 25px #071a4a30}.classroom-hero .btn:hover{background:#edf4ff}.classroom-hero .classroom-outline{background:#ffffff13;border:1px solid #ffffff52;color:#fff;box-shadow:none}.classroom-hero .classroom-outline:hover{background:#ffffff25}
.classroom-illustration{position:relative;height:250px;z-index:1}.classroom-glow{position:absolute;inset:12px 10px;border-radius:50%;background:radial-gradient(circle,#a8f1ff55,transparent 65%);filter:blur(8px)}.classroom-person{position:absolute;width:140px;height:170px;border-radius:28px;display:grid;place-items:center;font-size:70px;font-weight:800;box-shadow:0 22px 45px #07194266,inset 0 1px #ffffffa0;border:5px solid #ffffff44;transition:transform .3s}.classroom-person.person-one{left:12px;top:27px;background:linear-gradient(145deg,#f2f8ff,#97c8eb);color:#355b92;transform:rotate(-10deg)}.classroom-person.person-two{right:4px;top:54px;background:linear-gradient(145deg,#a4baff,#5273d6);color:#e9f5ff;transform:rotate(9deg)}.classroom-hero:hover .person-one{transform:rotate(-14deg) translateY(-5px)}.classroom-hero:hover .person-two{transform:rotate(13deg) translateY(-5px)}.classroom-spark{position:absolute;left:46%;top:39%;z-index:3;color:#b8f5ed;font-size:36px;filter:drop-shadow(0 0 14px #b8f5ed)}.classroom-wave{position:absolute;width:90px;height:90px;border:1px solid #b3e8ff7d;border-radius:50%;left:39%;top:25%}.classroom-wave.wave-two{width:130px;height:130px;left:32%;top:17%;opacity:.4}
.classroom-layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(250px,.75fr);gap:18px}.classroom-upcoming{min-height:315px}.classroom-count{background:#eef3ff;border-radius:30px;color:#5872c6;font-size:10px;font-weight:800;padding:8px 11px;white-space:nowrap}.classroom-list{padding:0 22px 12px}.classroom-item{display:flex;gap:15px;align-items:center;border-top:1px solid #edf1f8;padding:17px 0}.classroom-date{width:54px;flex:0 0 54px;background:#edf2ff;color:#4d6be3;border-radius:11px;text-align:center;padding:9px 3px}.classroom-date strong{font-size:20px;display:block;line-height:1}.classroom-date small{font-size:10px;font-weight:850;text-transform:uppercase}.classroom-item-info{min-width:0;flex:1}.classroom-item-info strong,.classroom-item-info span,.classroom-item-info small{display:block}.classroom-item-info strong{font-size:13px;margin-bottom:4px}.classroom-item-info span{font-size:11px;color:#667691}.classroom-item-info small{font-size:10px;color:#91a0b9;margin-top:4px}.classroom-enter{white-space:nowrap;font-size:11px}.classroom-enter span{font-size:15px}.classroom-coordinator-note{color:#8290a9;font-size:11px;font-weight:750}.classroom-empty{text-align:center;padding:25px 25px 40px;border-top:1px solid #edf1f8;margin:0 22px}.classroom-empty-icon{width:58px;height:58px;display:grid;place-items:center;margin:0 auto 13px;border-radius:17px;background:#eef3ff;color:#6a82d7;font-size:28px}.classroom-empty h3{font-size:15px;margin-bottom:6px}.classroom-empty p{font-size:12px;color:#7c8aa4;line-height:1.5;margin:0 auto 17px;max-width:340px}.classroom-side{background:#fff;border:1px solid #e9eef7;border-radius:17px;box-shadow:var(--shadow);padding:13px 20px}.classroom-feature{display:flex;align-items:start;gap:12px;padding:19px 0;border-bottom:1px solid #edf1f8}.classroom-feature .feature-symbol{display:grid;place-items:center;flex:0 0 35px;width:35px;height:35px;border-radius:10px;background:#edf2ff;color:#5470dc;font-size:18px}.classroom-feature:nth-child(2) .feature-symbol{background:#e9f8f5;color:#18a98d}.classroom-feature:nth-child(3) .feature-symbol{background:#fff4e8;color:#e69e37}.classroom-feature strong{font-size:12px}.classroom-feature p{color:#8a98af;font-size:11px;line-height:1.5;margin-top:4px}.classroom-test-link{display:flex;align-items:center;justify-content:space-between;width:100%;border:0;background:transparent;color:#4564d2;font-size:11px;font-weight:850;text-align:left;padding:20px 1px 8px}.classroom-test-link:hover{color:#243eae}.classroom-test-link span{font-size:17px}
.device-check .help-text{margin:15px 0 5px}.device-preview{height:230px;position:relative;display:grid;place-items:center;overflow:hidden;background:linear-gradient(140deg,#142a58,#2b4d9c);border-radius:14px}.device-preview video{height:100%;width:100%;object-fit:cover;transform:scaleX(-1)}.device-preview-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;color:#dce8ff;gap:10px}.device-preview-empty span{font-size:40px}.device-preview-empty strong{font-size:12px}.device-results{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.device-result{display:flex;align-items:center;gap:10px;border:1px solid #e5ebf5;border-radius:11px;padding:11px;min-width:0}.device-result-icon{display:grid;place-items:center;background:#eef2ff;color:#5870d7;width:32px;height:32px;flex:0 0 32px;border-radius:9px}.device-result strong,.device-result small{display:block}.device-result strong{font-size:11px}.device-result small{font-size:10px;color:#8392ad;margin-top:2px}.mic-meter{height:6px;flex:1;min-width:30px;background:#e8edf8;border-radius:10px;overflow:hidden;margin-left:auto}.mic-meter span{display:block;width:3%;height:100%;background:linear-gradient(90deg,#4cc7b5,#6a7afb);border-radius:10px;transition:width .08s}
.video-stage #remote-video{position:absolute;inset:0;z-index:0}.video-stage .video-placeholder{position:relative;z-index:1}.video-stage .local-video{z-index:2;width:180px;height:125px;top:auto;left:auto;right:20px;bottom:84px}.video-stage .local-video:not([data-active]){display:none}.video-stage .room-status{z-index:3}.video-controls{z-index:3}.video-controls .control{width:68px;height:58px;display:flex;flex-direction:column;gap:2px;align-items:center;justify-content:center;transition:transform .2s,background .2s}.video-controls .control:hover{transform:translateY(-3px);background:#3d5687}.video-controls .control span{font-size:19px;line-height:1}.video-controls .control small{font-size:9px;white-space:nowrap;font-weight:750}.video-controls .control.sharing{background:#138d78}.video-controls .control.leave:hover{background:#da5366}
@media(max-width:1100px){.classroom-hero{grid-template-columns:minmax(0,1fr) 240px;padding:32px}.classroom-illustration{transform:scale(.75);transform-origin:center}.classroom-layout{grid-template-columns:1fr}.classroom-side{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.classroom-feature{border-bottom:0}.classroom-test-link{grid-column:1/-1;border-top:1px solid #edf1f8;padding-top:14px}}
@media(max-width:700px){.classroom-hero{grid-template-columns:1fr;min-height:0;padding:30px}.classroom-illustration{display:none}.classroom-side{display:block}.classroom-feature{border-bottom:1px solid #edf1f8}.classroom-item{flex-wrap:wrap}.classroom-enter{margin-left:69px}.device-results{grid-template-columns:1fr}.video-stage .local-video{width:110px;height:80px;bottom:80px}.video-controls .control{width:54px;height:53px}.video-controls .control small{font-size:8px}}
@media(max-width:600px){.topbar .timezone-chip{display:block;max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.room-head .btn{white-space:nowrap}}