/* Cloud Hub Education — student portal. Mobile first, same brand as the admin panel. */
:root{
  --brand:#5b3fd9;--brand-2:#b15be8;--ink:#120d26;--text:#0f172a;--muted:#5b6b82;--faint:#8492a6;
  --bg:#f6f5fb;--paper:#fff;--line:#e3e8f1;--line-soft:#eef1f6;
  --good:#16a34a;--good-bg:#dcfce7;--bad:#e11d48;--bad-bg:#ffe4e6;--warn-bg:#fef3c7;
  --r:16px;--shadow:0 4px 14px -4px rgba(16,24,40,.10),0 1px 3px rgba(16,24,40,.06);
  --grad:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  --font:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 var(--font);min-height:100vh}
body.has-nav{padding-bottom:calc(var(--nav-h) + env(safe-area-inset-bottom) + 12px)}
h1,h2{margin:0;color:var(--ink);letter-spacing:-.01em;line-height:1.2}
h1{font-size:22px;font-weight:800}h2{font-size:17px;font-weight:700}
p{margin:0}a{color:var(--brand);text-decoration:none}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.p-top{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:calc(10px + env(safe-area-inset-top)) 16px 10px;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-soft)}
.p-brand img{display:block;height:30px;width:auto}
.p-bell{position:relative;display:grid;place-items:center;width:42px;height:42px;border-radius:12px;color:var(--ink);background:var(--bg)}
.p-badge{position:absolute;top:4px;right:4px;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--bad);color:#fff;font:700 11px/18px var(--font);text-align:center}
.p-ico{width:22px;height:22px;flex:none}

.p-main{max-width:640px;margin:0 auto;padding:16px;display:flex;flex-direction:column;gap:14px}
.p-title{margin:4px 0 2px}
.p-sub{color:var(--muted);font-size:14px}
.p-kicker{color:var(--brand);font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
.p-meta{color:var(--muted);font-size:14px;margin-top:4px}
.center{text-align:center}
.p-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:16px;box-shadow:var(--shadow)}
.p-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px}
.p-hello h1{font-size:24px}

.p-next{background:var(--grad);border:0;color:#fff}
.p-next h2,.p-next .p-meta,.p-next .p-kicker{color:#fff}.p-next .p-meta{opacity:.9}
.p-next .p-btn{background:#fff;color:var(--brand)}
.p-next .p-btn:disabled{background:rgba(255,255,255,.35);color:#fff}
.p-next .p-count{color:#fff;opacity:.9}
.p-timer{margin:12px 0 4px;font-size:26px;font-weight:800;letter-spacing:-.02em}

.p-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border:0;border-radius:12px;background:var(--brand);color:#fff;font:700 15px/1 var(--font);cursor:pointer;text-decoration:none}
.p-btn:hover{filter:brightness(1.05)}
.p-btn.big{min-height:52px;font-size:16px;padding:14px 22px}
.p-btn.block{width:100%}
.p-btn.sm{min-height:36px;padding:8px 14px;font-size:14px}
.p-btn.ghost{background:var(--bg);color:var(--ink);border:1px solid var(--line)}
.p-btn:disabled{background:#c9c3ea;cursor:not-allowed}
.p-link{background:none;border:0;color:var(--brand);font:600 14px var(--font);cursor:pointer;padding:8px 0;display:inline-block}
.p-join{display:flex;flex-direction:column;gap:6px;margin-top:12px}
.p-join .p-btn{width:100%}
.p-count{color:var(--muted);font-size:13px;text-align:center}
.p-pill{display:inline-block;padding:3px 10px;border-radius:999px;background:var(--line-soft);color:var(--muted);font-size:12px;font-weight:700;white-space:nowrap}
.p-pill.good{background:var(--good-bg);color:#166534}.p-pill.bad{background:var(--bad-bg);color:#9f1239}

.p-tiles{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.p-tile{display:flex;flex-direction:column;gap:2px;padding:14px;border-radius:var(--r);background:var(--paper);border:1px solid var(--line);color:var(--ink);box-shadow:var(--shadow)}
.p-tile .p-ico{color:var(--brand);margin-bottom:6px}
.p-tile strong{font-size:18px}.p-tile span{color:var(--muted);font-size:13px}

.p-list{list-style:none;margin:0;padding:0}
.p-list li{border-top:1px solid var(--line-soft)}.p-list li:first-child{border-top:0}
.p-list a{display:flex;flex-direction:column;gap:2px;padding:12px 2px;color:var(--ink)}
.p-list small{color:var(--muted);font-size:13px}
.p-list li.unread strong::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--brand);margin-right:8px;vertical-align:middle}

.p-kv{margin:10px 0 0;display:grid;gap:0}
.p-kv>div{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-top:1px solid var(--line-soft)}
.p-kv dt{color:var(--muted);font-size:14px}.p-kv dd{margin:0;font-weight:600;text-align:right}
.p-kv .hi dd{color:var(--brand);font-size:17px}
.p-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

.p-tabs{display:flex;gap:6px;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:4px}
.p-tabs a{flex:1;text-align:center;padding:10px;border-radius:10px;color:var(--muted);font-weight:700}
.p-tabs a.on{background:var(--brand);color:#fff}
.p-pager{display:flex;justify-content:space-between;gap:10px}

.p-form{display:flex;flex-direction:column;gap:14px;margin-top:14px}
.p-form label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:14px}
input,textarea,select{font:16px var(--font);color:var(--text);background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;width:100%}
input:focus,textarea:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px color-mix(in oklab,var(--brand) 18%,transparent)}
.p-check{flex-direction:row!important;align-items:center;gap:10px!important;font-weight:500!important}
.p-check input{width:22px;height:22px;flex:none;accent-color:var(--brand)}
.p-auth{margin-top:24px}.p-auth h1{margin-bottom:6px}

.p-flash{padding:12px 14px;border-radius:12px;font-weight:600;font-size:14px;background:var(--line-soft)}
.p-flash.success{background:var(--good-bg);color:#166534}.p-flash.error{background:var(--bad-bg);color:#9f1239}.p-flash.info,.p-flash.warn{background:var(--warn-bg);color:#92400e}

.p-install,.p-push,.p-ios{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px;border-radius:var(--r);background:#efeafd;border:1px solid #ddd3fb}
.p-ios{display:block;font-size:14px}.p-ios ol{margin:8px 0 0;padding-left:20px}

.p-chat-head{display:flex;align-items:center;gap:12px}.p-chat-head .p-link{font-size:22px;padding:4px 10px 4px 0}
.p-msgs{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.p-msg{max-width:85%;align-self:flex-start;background:var(--paper);border:1px solid var(--line);border-radius:16px 16px 16px 4px;padding:10px 12px}
.p-msg.mine{align-self:flex-end;background:var(--brand);border-color:var(--brand);color:#fff;border-radius:16px 16px 4px 16px}
.p-msg-meta{font-size:12px;margin-bottom:4px;opacity:.85}.p-msg-meta small{opacity:.85}
.p-msg p{white-space:pre-wrap;word-break:break-word}
.p-file{display:inline-flex;align-items:center;gap:6px;margin-top:6px;font-weight:600;color:inherit;text-decoration:underline}
.p-empty{color:var(--muted);text-align:center;padding:20px}
.p-compose{position:sticky;bottom:calc(var(--nav-h) + env(safe-area-inset-bottom) + 6px);background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:10px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow)}
.p-compose textarea{resize:vertical;min-height:48px}
.p-compose-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.p-attach{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--bg);color:var(--ink);cursor:pointer;position:relative;overflow:hidden}
.p-attach input{position:absolute;inset:0;opacity:0;cursor:pointer}

.p-nav{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;justify-content:space-around;background:#fff;border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
.p-nav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 0;color:var(--faint);font-size:11px;font-weight:700;border-radius:12px}
.p-nav a.on{color:var(--brand)}
.p-nav a.on .p-ico{stroke-width:2.2}

@media (min-width:720px){
  .p-main{padding:24px}
  .p-tiles{grid-template-columns:repeat(4,1fr)}
  .p-nav{max-width:640px;margin:0 auto;border:1px solid var(--line);border-bottom:0;border-radius:16px 16px 0 0}
}
@media print{.p-top,.p-nav,.p-btn,.p-link{display:none!important}body{background:#fff}.p-card{box-shadow:none;border:0}}
.p-push-state{margin-top:16px;display:flex;flex-direction:column;gap:10px;align-items:flex-start}