/* ALFA3 V13 — unified join + invitation + event assistant */

.a3-home-join{margin-top:14px;display:flex;align-items:center;gap:12px;max-width:610px;padding:9px 10px;border:1px solid rgba(41,195,255,.2);background:rgba(7,27,45,.68);border-radius:16px;box-shadow:inset 0 1px rgba(255,255,255,.03)}
.a3-home-join-label{font-size:12px;font-weight:700;color:#b8c9da;white-space:nowrap}
.a3-home-join-controls{display:flex;gap:8px;flex:1;min-width:0}
.a3-home-join input{min-width:0;flex:1;height:38px;border-radius:11px;border:1px solid rgba(87,185,233,.2);background:#081b2b;color:#fff;padding:0 13px;font-family:inherit;outline:none}
.a3-home-join input:focus{border-color:#22c7f2;box-shadow:0 0 0 3px rgba(34,199,242,.09)}
.a3-home-join button{height:38px;border:0;border-radius:11px;background:linear-gradient(135deg,#09bff2,#1479e8);color:#fff;padding:0 18px;font-family:inherit;font-weight:800;cursor:pointer}

.a3-join-body{margin:0;min-height:100vh;background:radial-gradient(circle at 70% 15%,rgba(0,190,255,.12),transparent 35%),linear-gradient(150deg,#06111e,#04101c 55%,#06182a);color:#f7fbff;font-family:'Alexandria',sans-serif}
.a3-join-shell{width:min(940px,calc(100% - 28px));margin:auto;padding:28px 0 50px}
.a3-join-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;text-decoration:none;margin-bottom:34px}
.a3-join-brand img{width:52px;height:52px;object-fit:contain}
.a3-join-brand span{display:grid;gap:2px}.a3-join-brand strong{font-size:21px}.a3-join-brand small{color:#91abc0;font-size:10px}
.a3-join-card{max-width:650px;margin:5vh auto 0;padding:34px;border:1px solid rgba(64,188,241,.24);border-radius:26px;background:linear-gradient(160deg,rgba(10,37,59,.94),rgba(5,21,35,.96));box-shadow:0 28px 80px rgba(0,0,0,.28)}
.a3-join-kicker{display:inline-flex;color:#21d5f2;font-size:11px;font-weight:800;letter-spacing:.08em;margin-bottom:8px}
.a3-join-card h1{font-size:clamp(27px,5vw,44px);line-height:1.2;margin:5px 0 10px}.a3-join-card>p{color:#a7bdd0;margin:0 0 22px}
.a3-join-code{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:18px 0;padding:12px 14px;border-radius:14px;background:#071a2a;border:1px solid rgba(44,195,238,.17);color:#90a9bc}.a3-join-code b{color:#32d8f4;letter-spacing:.09em}
.a3-join-code-form{display:flex;gap:10px}.a3-join-code-form input{flex:1;height:50px;border-radius:13px;border:1px solid rgba(75,187,239,.25);background:#061827;color:#fff;padding:0 15px;font-family:inherit;text-transform:uppercase;outline:none}.a3-join-code-form .btn{min-width:120px}
.a3-join-options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}.a3-join-option{display:flex;align-items:center;gap:13px;padding:17px;border:1px solid rgba(80,190,239,.22);border-radius:17px;background:#081d2e;color:#fff;text-decoration:none;transition:.18s}.a3-join-option:hover{transform:translateY(-2px);border-color:#2cd0ed}.a3-join-option.primary{background:linear-gradient(135deg,rgba(10,120,220,.3),rgba(8,40,69,.96));border-color:rgba(20,158,247,.48)}.a3-join-option-icon{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;background:rgba(16,188,238,.1);font-size:20px}.a3-join-option span:last-child{display:grid;gap:4px}.a3-join-option small{color:#95acbf;line-height:1.6}.a3-join-back{display:inline-block;margin-top:22px;color:#85a9c2;text-decoration:none;font-size:12px}

.v13-invite-bar{position:relative;display:grid;grid-template-columns:minmax(250px,1fr) auto auto;align-items:center;gap:14px;margin:10px 0 15px;padding:10px 12px;border:1px solid rgba(51,193,239,.22);border-radius:16px;background:linear-gradient(90deg,rgba(6,28,46,.95),rgba(8,37,58,.88));box-shadow:0 12px 28px rgba(0,0,0,.12)}
.v13-invite-copy{display:flex;align-items:center;gap:10px;min-width:0}.v13-invite-copy>div{display:grid;gap:2px}.v13-invite-copy strong{font-size:13px}.v13-invite-copy small{font-size:10px;color:#90a8bb;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.v13-invite-icon{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;color:#28d8ef;background:rgba(24,203,237,.1);border:1px solid rgba(36,202,238,.16)}
.v13-invite-code{display:grid;gap:1px;padding:5px 11px;border-radius:10px;background:#061a2a;border:1px solid rgba(78,182,229,.14)}.v13-invite-code span{font-size:8px;color:#7895aa}.v13-invite-code b{font-size:11px;color:#3bd9f1;letter-spacing:.08em}
.v13-invite-actions{display:flex;gap:6px;flex-wrap:wrap}.v13-invite-actions .btn{min-height:32px;padding:6px 10px;font-size:10px}
.v13-qr-pop{position:absolute;z-index:30;left:12px;top:calc(100% + 8px);padding:12px;border:1px solid rgba(55,199,239,.26);border-radius:15px;background:#071827;box-shadow:0 22px 55px rgba(0,0,0,.36);text-align:center}.v13-qr-pop[hidden]{display:none}.v13-qr-pop [data-qr-box]{padding:7px;background:#fff;border-radius:8px}.v13-qr-pop small{display:block;margin-top:7px;color:#94aabd;font-size:9px}

.v75-person.is-assistant{border-color:rgba(44,216,238,.42)!important;background:linear-gradient(140deg,rgba(12,56,74,.55),rgba(7,27,43,.9))!important}.v13-assistant-btn{flex-basis:100%;color:#90e9f6!important}.v13-assistant-btn.is-on{background:rgba(19,204,187,.13)!important;border-color:rgba(44,216,203,.35)!important;color:#5ff2df!important}

@media(max-width:860px){.v13-invite-bar{grid-template-columns:1fr auto}.v13-invite-copy{grid-column:1/-1}.v13-invite-copy small{white-space:normal}.v13-invite-actions{justify-content:flex-start}.v13-qr-pop{left:auto;right:10px}.a3-home-join{max-width:none}}
@media(max-width:620px){.a3-home-join{display:grid;gap:8px}.a3-home-join-controls{width:100%}.a3-home-join-label{font-size:10px}.a3-join-shell{padding-top:18px}.a3-join-card{margin-top:1vh;padding:22px 17px;border-radius:20px}.a3-join-options{grid-template-columns:1fr}.a3-join-code-form{display:grid}.a3-join-code-form .btn{width:100%}.v13-invite-bar{grid-template-columns:1fr;gap:8px}.v13-invite-code{justify-self:start}.v13-invite-actions{width:100%}.v13-invite-actions .btn{flex:1}.v13-qr-pop{position:static;grid-column:1/-1;justify-self:center}}
.a3-login-join-code{margin-top:14px;padding-top:14px;border-top:1px solid rgba(82,177,221,.14);display:grid;gap:8px}.a3-login-join-code>span{font-size:10px;font-weight:700;color:#8fa9bb}.a3-login-join-code>div{display:flex;gap:7px}.a3-login-join-code input{min-width:0;flex:1;height:38px;border-radius:10px;border:1px solid rgba(71,180,228,.2);background:#071a2a;color:#fff;padding:0 11px;font-family:inherit;text-transform:uppercase}.a3-login-join-code button{border:0;border-radius:10px;background:#0a86df;color:#fff;padding:0 14px;font-family:inherit;font-weight:800;cursor:pointer}


/* ALFA3 V13.1 — Student join dashboard additions */
.v131-student-hero{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin:16px 0 22px}.v131-student-copy{max-width:760px}.v131-student-copy h1{margin:6px 0 8px;font-size:clamp(30px,4.8vw,58px);line-height:1.08}.v131-student-copy p{max-width:700px;margin:0;color:#93aabd;line-height:1.9;font-size:13px}.v131-student-summary{display:grid;grid-template-columns:repeat(3,minmax(105px,1fr));gap:8px}.v131-student-summary>div{min-width:108px;padding:10px 12px;border:1px solid rgba(68,182,231,.17);border-radius:13px;background:#0a1d2e;display:grid;gap:3px}.v131-student-summary span{font-size:9px;color:#7f99ad}.v131-student-summary strong{font-size:18px;color:#f7fbff}
.v131-join-panel{display:grid;grid-template-columns:auto minmax(230px,.8fr) minmax(360px,1.2fr);gap:18px;align-items:center;padding:18px 20px;border:1px solid rgba(40,202,241,.28);border-radius:20px;background:radial-gradient(circle at 85% 30%,rgba(0,198,255,.09),transparent 35%),linear-gradient(135deg,rgba(8,38,60,.98),rgba(6,24,39,.96));box-shadow:0 18px 42px rgba(0,0,0,.13),inset 0 1px rgba(255,255,255,.03)}.v131-join-icon{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;background:linear-gradient(145deg,rgba(15,198,239,.17),rgba(18,110,216,.13));border:1px solid rgba(43,210,242,.28);color:#36d9f3;font-size:23px;font-weight:800}.v131-kicker{font-size:9px;font-weight:800;letter-spacing:.09em;color:#26d3ee}.v131-join-info h2,.v131-section-head h2{margin:3px 0 5px;font-size:19px}.v131-join-info p{margin:0;color:#91a9bc;font-size:11px;line-height:1.75}.v131-code-form{display:grid;gap:5px}.v131-code-form label{font-size:10px;color:#a9bfd0;font-weight:700}.v131-code-row{display:flex;gap:8px}.v131-code-row input{min-width:0;flex:1;height:45px;padding:0 14px;border:1px solid rgba(74,192,237,.25);border-radius:12px;background:#051827;color:#fff;font-family:inherit;font-size:14px;letter-spacing:.08em;outline:none;text-transform:uppercase}.v131-code-row input:focus{border-color:#2bd0ef;box-shadow:0 0 0 3px rgba(43,208,239,.09)}.v131-join-btn{min-width:105px;height:45px}.v131-code-form small{font-size:8px;color:#708ba0}
.v131-student-sessions{margin-top:26px}.v131-section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:12px}.v131-count-pill{padding:6px 10px;border-radius:999px;border:1px solid rgba(70,184,229,.17);background:#0a1c2c;color:#8da6ba;font-size:9px}.v131-session-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.v131-session-card{position:relative;padding:15px;border:1px solid rgba(66,170,216,.18);border-radius:17px;background:linear-gradient(155deg,#0b2032,#081a2a);overflow:hidden}.v131-session-card.is-live{border-color:rgba(26,224,177,.35);box-shadow:0 0 0 1px rgba(26,224,177,.04),0 12px 35px rgba(0,0,0,.12)}.v131-session-card.is-live:before{content:"";position:absolute;inset:0 auto 0 0;width:2px;background:#24e3af}.v131-session-card.is-ended{opacity:.72}.v131-session-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.v131-live-dot{font-size:8px;font-weight:800;color:#34e3ae;letter-spacing:.06em}.v131-session-card h3{margin:13px 0 11px;font-size:17px;line-height:1.45}.v131-session-meta{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:13px}.v131-session-meta span{display:grid;gap:2px;padding:8px 9px;border-radius:10px;background:#071827;color:#a5b9c9;font-size:9px;overflow:hidden}.v131-session-meta b{font-size:8px;color:#668399;font-weight:600}.v131-open-session{min-height:38px}.v131-ended-note{display:block;padding:9px 10px;border-radius:10px;background:#071827;color:#768da0;font-size:9px;text-align:center}.v131-empty-state{display:flex;align-items:center;gap:15px;padding:18px;border:1px dashed rgba(69,181,227,.24);border-radius:18px;background:rgba(8,27,43,.6)}.v131-empty-icon{width:46px;height:46px;flex:0 0 46px;border-radius:14px;display:grid;place-items:center;background:rgba(25,197,235,.08);color:#2bd5ef;font-size:25px}.v131-empty-state>div:nth-child(2){flex:1}.v131-empty-state h3{margin:0 0 4px;font-size:15px}.v131-empty-state p{margin:0;color:#839caf;font-size:10px;line-height:1.7}
@media(max-width:980px){.v131-student-hero{align-items:stretch;flex-direction:column}.v131-student-summary{width:100%}.v131-join-panel{grid-template-columns:auto 1fr}.v131-code-form{grid-column:1/-1}.v131-session-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.v131-student-hero{margin-top:8px;gap:15px}.v131-student-copy h1{font-size:32px}.v131-student-summary{grid-template-columns:repeat(3,1fr)}.v131-student-summary>div{min-width:0;padding:8px}.v131-student-summary span{font-size:7px}.v131-student-summary strong{font-size:15px}.v131-join-panel{grid-template-columns:1fr;padding:14px;gap:10px}.v131-join-icon{width:38px;height:38px;border-radius:11px}.v131-code-form{grid-column:auto}.v131-code-row{display:grid}.v131-join-btn{width:100%}.v131-session-grid{grid-template-columns:1fr}.v131-section-head{align-items:center}.v131-session-meta{grid-template-columns:1fr}.v131-empty-state{display:grid;text-align:center;justify-items:center}.v131-empty-state>div:nth-child(2){width:100%}.v131-empty-state .btn{width:100%}}