:root{--blue:#1479ff;--ink:#09458d;--muted:#7892b7;--line:#e4edfa;--bg:#f3f8ff}*{box-sizing:border-box}body{margin:0;color:var(--ink);font:15px/1.7 'Noto Sans JP','Hiragino Kaku Gothic ProN','Yu Gothic',sans-serif;background:var(--bg)}a{color:var(--blue);text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{ -webkit-tap-highlight-color:transparent}button{cursor:pointer;background:#edf5ff;color:var(--ink);border:1px solid #cddffc;border-radius:12px;padding:9px 18px}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #458fff;outline-offset:3px}button:hover{filter:brightness(.97)}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{width:100%;border:1px solid #d5e4fa;border-radius:11px;padding:12px 15px;color:var(--ink);background:#f8fbff}input::placeholder{color:#8da7cc}input[type=checkbox]{width:auto}h1,h2,h3,p{margin-top:0}h2{font-size:19px}h3{font-size:18px}small{font-size:12px;color:var(--muted)}.brand{font-size:27px;font-weight:800;display:flex;gap:12px;align-items:center;white-space:nowrap}.logo{display:inline-flex;background:linear-gradient(140deg,#0687ff,#5961ff);border-radius:17px;transform:rotate(-16deg);color:white;width:42px;height:42px;align-items:center;justify-content:center;font-size:40px;font-weight:bold;line-height:1}.topbar{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 32px;background:#ffffffed;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5;gap:25px}.search{width:40%;max-width:530px;display:flex;align-items:center;border-radius:30px;background:#f1f6fc;padding:0 18px;color:var(--muted)}.search span{font-size:27px}.search input{background:transparent;border:0;font-size:12px}.account{display:flex;align-items:center;gap:14px;font-size:14px}.account>a:first-child{font-size:27px}.avatar{display:inline-flex;border-radius:50%;background:#e2efff;color:var(--blue);width:44px;height:44px;align-items:center;justify-content:center;font-size:29px}.sidebar{position:fixed;left:0;top:78px;bottom:0;width:245px;border-right:1px solid var(--line);padding:24px 16px;background:linear-gradient(120deg,#f0f6fe,#f8fbff)}.sidebar nav a{display:flex;align-items:center;gap:20px;color:#436392;padding:12px 15px;border-radius:13px;margin-bottom:6px}.sidebar nav a span{font-size:24px;width:25px;text-align:center;line-height:1}.sidebar nav a.active,.sidebar nav a:hover{background:#dfecff;color:var(--blue)}.sidebar-footer{position:absolute;bottom:30px;left:30px;color:#86a0c4;font-size:12px}.sidebar-footer small{display:block}.workspace{margin-left:245px;display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);gap:26px;padding:24px 28px;max-width:1700px}.main-column{min-width:0}.hero{height:270px;border-radius:15px;background:#bdddff url('campus.svg') center/cover;overflow:hidden;padding:40px 46px;margin-bottom:22px}.hero p{font-size:22px;line-height:1.5;font-weight:600;margin-bottom:7px}.hero h1{font-size:36px;margin-bottom:12px}.hero h1 small{font-size:23px;color:var(--ink)}.panel{background:#ffffffda;border:1px solid var(--line);border-radius:16px;padding:24px;margin-bottom:18px;box-shadow:0 3px 18px #b8cdee0a}.panel p:last-child{margin-bottom:0}.notice-banner{background:#fff;border:1px solid var(--line);border-radius:15px;display:flex;align-items:center;gap:24px;padding:19px 23px;color:var(--ink);margin-bottom:28px}.round-icon{width:65px;height:65px;border-radius:50%;background:#e9f2ff;display:flex;align-items:center;justify-content:center;font-size:38px;color:var(--blue);flex-shrink:0}.pill{background:#8cb7ff;color:#fff;border-radius:20px;padding:3px 12px;font-size:11px}.notice-banner p{margin:8px 0 0;font-size:18px}.chevron{margin-left:auto;color:var(--muted);font-size:24px}.section-title{padding-left:20px;position:relative;margin:0 0 16px}.section-title:before{content:'';position:absolute;left:5px;top:6px;height:22px;width:4px;background:var(--blue);border-radius:4px}.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:0 7px 30px}.tile{padding:15px 26px 10px;position:relative;border-radius:16px;color:var(--ink);display:flex;flex-direction:column;gap:8px;transition:transform .2s,box-shadow .2s}.tile:hover{transform:translateY(-3px);box-shadow:0 8px 20px #799bcc25}.tile span{align-self:center;border-radius:50%;height:69px;width:69px;color:white;display:flex;align-items:center;justify-content:center;font-size:38px;box-shadow:inset 0 0 10px #ffffff55;background:#509bff}.tile b{font-size:18px}.tile i{position:absolute;right:20px;bottom:13px;font-style:normal;font-size:24px;color:#7e9dc6}.blue{background:#e8f3ff}.green{background:#e5f7f5}.green span{background:#43d2a8}.pink{background:#fbecf5}.pink span{background:#ff73a3}.yellow{background:#fcf7e9}.yellow span{background:#ffc837}.purple{background:#f0ecff}.purple span{background:#aa7bff}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:15px}.section-heading h2{margin:0;font-size:17px}.section-heading h1{margin:0}.section-heading a{font-size:11px;white-space:nowrap}.event-wide{display:flex;gap:24px;align-items:center}.event-wide strong{font-size:27px;white-space:nowrap;padding-right:22px;border-right:2px solid var(--blue)}.event-wide small{display:block}.event-wide h3{margin:0}.notice-row{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink)}.notice-row:last-child{border:0;padding-bottom:0}.notice-row small{display:block;margin-top:5px}.dot{width:9px;height:9px;background:#5298ff;border-radius:50%;flex-shrink:0;margin-top:9px}.notice-row:nth-child(3) .dot,.notice-row:nth-child(4) .dot{background:#ef84ad}.event-row{display:flex;gap:18px;align-items:center;border:1px solid var(--line);padding:12px 8px;border-radius:9px;color:var(--ink);font-size:13px}.event-row>span:last-child{margin-left:auto}.event-row small{display:block;margin-top:4px}.date-badge{border-radius:50%;background:#e0eeff;min-width:60px;height:60px;display:flex;align-items:center;justify-content:center;flex-direction:column;font-size:16px;font-weight:700;color:var(--blue)}.date-badge small{margin:0;color:inherit}.event-row:nth-child(3) .date-badge{background:#eee6ff;color:#995bff}.event-row:nth-child(4) .date-badge{background:#def7ee;color:#18a682}.promo{background:#dceeff url('campus.svg') center/cover;border-radius:12px;padding:20px 22px;color:var(--blue);font-size:22px;font-style:italic;line-height:1.5;margin:0 5px}.promo small{display:block;margin-top:20px;font-size:15px;color:var(--blue);font-style:normal;font-weight:700}.primary{border:0;background:linear-gradient(100deg,#1679ff,#6975ff);color:#fff;border-radius:30px;padding:12px 25px;font-weight:700;min-width:140px}.content-form label{display:block}.content-form textarea{resize:vertical}.content-form p{margin-bottom:16px}.content-form .helptext{font-size:12px}.content-form ul{font-size:12px}.content-form button{margin-top:10px}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.actions form{margin:0}.filter-form{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;margin-bottom:18px}.filter-form label{font-size:13px}.member-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.member-card h3{margin:10px 0 4px}.member-card p{font-size:13px}.social-workspace{display:block;max-width:1300px}.social-workspace .main-column{max-width:1000px;margin:auto}.video-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.video-grid video{background:#153352;aspect-ratio:16/9;width:100%;border-radius:12px}.chat-message{background:#eff5ff;border-radius:12px;padding:12px 18px;margin:12px 0;max-width:80%;overflow-wrap:anywhere}.chat-message p{margin:4px 0;white-space:normal}.chat-message.own{margin-left:auto;background:#e7f6f4}.text-button{border:0;background:none;padding:0;font-size:11px}.auth-page{min-height:100vh;background:linear-gradient(105deg,#e9f7ff50,#c3e3ff45),url('campus.svg') center bottom/cover fixed}.auth-header{display:flex;justify-content:space-between;align-items:center;padding:30px 5%;font-size:13px}.auth-layout{display:grid;grid-template-columns:1.2fr 1fr;gap:8vw;align-items:center;max-width:1250px;margin:35px auto;padding:0 35px}.intro{align-self:start;padding-top:70px}.intro>p{font-size:23px;font-weight:600}.intro h1{font-size:66px;letter-spacing:-2px;line-height:1.2;margin-bottom:30px;color:#0845c9}.intro .intro-description{font-size:18px;line-height:1.9}.intro-features{display:flex;gap:25px;margin-top:200px;font-size:20px;background:#66a9ffbb;border-radius:18px;padding:20px;color:white}.intro-features small{display:block;font-size:11px;color:white;white-space:nowrap}.auth-card{background:#ffffffdf;backdrop-filter:blur(12px);border:1px solid #fff;border-radius:24px;padding:40px 45px;text-align:center;box-shadow:0 10px 40px #517bbb25;max-width:560px;width:100%}.auth-card .big{width:62px;height:62px;font-size:56px}.auth-card h2{font-size:34px;color:#0845c9;margin:14px 0}.auth-card>p{font-size:14px;margin-bottom:30px}.auth-card .field{text-align:left;margin:14px 0}.field label{font-size:13px}.field input{background:#ffffff70}.auth-card .primary{width:100%;margin-top:20px;font-size:18px}.auth-note{margin-top:35px;color:var(--muted)}.password-toggle{display:block;text-align:right;font-size:12px;color:var(--muted)}.errorlist{color:#bb2854;font-size:13px;padding-left:20px}.field small{display:block}.field ul{padding-left:20px}blockquote{border-left:3px solid #bdd8ff;margin:15px 0;padding:5px 18px}hr{border:0;border-top:1px solid var(--line)}summary{cursor:pointer}textarea{min-height:80px}
@media(min-width:1500px){.workspace{gap:28px;padding:24px 30px}.hero{height:290px}.tile{padding-top:20px;padding-bottom:15px}.right-column .panel{padding:25px}}
@media(max-width:1150px){.sidebar{width:205px}.workspace{margin-left:205px;grid-template-columns:minmax(0,1fr);padding:22px}.right-column{display:grid;grid-template-columns:1fr 1fr;gap:18px}.promo{display:none}.tile{padding-left:18px;padding-right:18px}.brand{font-size:23px}.auth-layout{gap:35px}.intro h1{font-size:49px}.auth-card{padding:30px}.intro-features{margin-top:130px;flex-wrap:wrap}.account>a:first-child{display:none}}
@media(max-width:700px){.topbar{height:auto;min-height:70px;padding:14px 18px;flex-wrap:wrap;gap:10px}.brand{font-size:22px}.logo{width:33px;height:33px;font-size:32px}.account{font-size:12px;gap:8px}.account .avatar{display:none}.search{order:3;width:100%;max-width:none}.sidebar{position:sticky;top:0;width:auto;bottom:auto;padding:6px;z-index:4;border-bottom:1px solid var(--line);border-right:0;overflow:auto}.sidebar nav{display:flex;width:max-content}.sidebar nav a{font-size:12px;gap:6px;margin:0;padding:8px 12px}.sidebar nav a span{font-size:18px;width:auto}.sidebar-footer{display:none}.workspace{margin:0;padding:18px 14px;gap:18px}.hero{padding:25px;height:225px;background-position:60%}.hero h1{font-size:28px}.hero h1 small{font-size:18px}.hero p{font-size:17px}.notice-banner{gap:12px;padding:16px;margin-bottom:24px}.notice-banner p{font-size:14px}.round-icon{height:45px;width:45px;font-size:27px}.tiles{grid-template-columns:repeat(2,1fr);gap:12px;margin:0 0 24px}.tile b{font-size:16px}.tile span{width:57px;height:57px;font-size:30px}.right-column{display:block}.panel{padding:20px}.auth-header{padding:22px}.auth-header>span{display:none}.auth-layout{display:block;margin:10px auto;padding:0 20px 30px}.intro{padding:15px 6px}.intro>p{font-size:17px}.intro h1{font-size:43px;margin-bottom:12px}.intro .intro-description{font-size:14px}.intro-features{display:none}.auth-card{margin:auto;padding:30px 24px}.auth-card h2{font-size:29px}.filter-form,.member-grid{grid-template-columns:1fr}.section-heading h1{font-size:24px}.event-wide{gap:14px}.event-wide strong{font-size:23px;padding-right:14px}.video-grid{grid-template-columns:1fr}.chat-message{max-width:95%}}
.video-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.video-tile{position:relative;aspect-ratio:16/10;overflow:hidden;background:#153352;border-radius:12px;color:#fff;display:flex;align-items:center;justify-content:center}.video-tile video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.video-tile video.local-preview{transform:scaleX(-1)}.video-tile .video-name{position:absolute;left:8px;right:8px;bottom:8px;background:#102b4fcc;border-radius:6px;padding:3px 8px;font-size:12px;z-index:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.video-tile .video-placeholder{color:#b9d3f4;font-size:13px}.video-tile.speaking{outline:3px solid #49d7aa;outline-offset:-3px}.gallery-pagination{display:flex;justify-content:center;align-items:center;gap:15px;margin:15px 0}#participant-count{color:var(--muted);font-size:13px}#remote-audio audio{display:none}.group-call .actions{align-items:center}select[multiple]{min-height:150px}@media(max-width:700px){.video-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:400px){.video-gallery{grid-template-columns:1fr}}
.metric-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:20px 0}.metric-grid>div{padding:16px;background:#eff6ff;border-radius:12px}.metric-grid strong{display:block;font-size:23px;margin-top:8px}.recording-banner{background:#fff0f4;border:1px solid #f4a7bb;color:#ad2e50;border-radius:10px;padding:10px 14px;font-weight:700}.recording-consent-row{display:inline-block;margin:5px 10px 5px 0;padding:4px 10px;border:1px solid var(--line);border-radius:16px;font-size:12px}#practice-video{display:block;width:100%;max-width:640px;aspect-ratio:16/9;background:#153352;border-radius:12px;transform:scaleX(-1)}@media(max-width:700px){.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}