:root{
  --bg:#f4f8ff;
  --bg-2:#eef5ff;
  --surface:#ffffff;
  --surface-2:#f8fbff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#dbe7f5;
  --brand:#2563eb;
  --brand-2:#14b8a6;
  --danger:#dc2626;
  --warning:#d97706;
  --success:#059669;
  --shadow:0 18px 44px rgba(37,99,235,.08);
  --radius:24px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,system-ui,sans-serif;color:var(--text);background:linear-gradient(180deg,#f8fbff 0%,#eef6ff 100%);min-height:100%}
body{position:relative}
.backdrop{position:fixed;border-radius:999px;filter:blur(80px);opacity:.5;z-index:0;pointer-events:none}
.glow-a{width:420px;height:420px;top:-100px;left:-120px;background:#bfdbfe}
.glow-b{width:420px;height:420px;bottom:-160px;right:-120px;background:#99f6e4}
a{color:inherit}
.sidebar,.main{position:relative;z-index:1}
.sidebar{position:fixed;left:20px;top:20px;bottom:20px;width:280px;padding:20px;border:1px solid rgba(255,255,255,.75);background:rgba(255,255,255,.82);backdrop-filter:blur(16px);border-radius:30px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:18px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;padding:8px 6px}
.mark{width:52px;height:52px;border-radius:18px;display:grid;place-items:center;font-weight:900;color:#083344;background:linear-gradient(135deg,#67e8f9,#93c5fd)}
.brand b{display:block;font-size:18px}.brand small{display:block;color:var(--muted);margin-top:2px}
nav{display:grid;gap:8px}
nav a{padding:12px 14px;border-radius:16px;text-decoration:none;color:#334155;font-weight:700;transition:.2s}
nav a:hover,nav a.active{background:linear-gradient(135deg,#eff6ff,#ecfeff);color:#0f172a;box-shadow:inset 0 0 0 1px #cfe2ff}
.role-card{margin-top:auto;padding:18px;border-radius:22px;background:linear-gradient(135deg,#eff6ff,#ecfeff);border:1px solid #d8e9fb}
.role-card small,.muted{color:var(--muted)}.role-card b{display:block;margin:6px 0 4px;font-size:20px}.role-card span{color:#334155}
.main{margin-left:320px;padding:24px 26px 40px}.main.public{margin-left:0;max-width:1200px;margin-right:auto;margin-left:auto;padding:32px 20px 48px}
.top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;padding:24px 28px;margin-bottom:20px;background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.75);backdrop-filter:blur(16px);box-shadow:var(--shadow);border-radius:30px}
.kicker{margin:0 0 8px;color:#0f766e;font-weight:900;letter-spacing:.12em;text-transform:uppercase;font-size:12px}
h1{margin:0;font-size:44px;line-height:1.04}.top p:last-child{color:var(--muted);max-width:760px;line-height:1.6;margin:10px 0 0}
.profile{display:flex;gap:12px;align-items:center;padding:10px 12px;background:#fff;border:1px solid var(--border);border-radius:22px;box-shadow:0 8px 24px rgba(15,23,42,.05)}
.avatar{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,#8b5cf6,#60a5fa);color:#fff;font-weight:900;display:grid;place-items:center}
.profile b{display:block}.profile small{color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:14px;padding:11px 16px;font-weight:800;cursor:pointer;text-decoration:none;background:#eef2ff;color:#1e293b;box-shadow:none}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:linear-gradient(135deg,var(--brand-2),var(--brand));color:#fff}
.btn.ghost{background:#fff;border:1px solid var(--border)}
.btn.danger-soft{background:#fff1f2;color:#be123c;border:1px solid #fecdd3}
.btn.full{width:100%}.btn.tiny{padding:8px 12px;font-size:12px;border-radius:12px;white-space:nowrap}
.actions{display:flex;flex-wrap:wrap;gap:10px}
.alerts{display:grid;gap:10px;margin-bottom:18px}.alert{padding:14px 16px;border-radius:16px;font-weight:700}.alert.success{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}.alert.warning{background:#fffbeb;color:#92400e;border:1px solid #fcd34d}.alert.danger{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}
.hero,.student-hero,.split,.admin-grid,.grid.stats,.role-grid,.zoho-grid,.meta-grid{display:grid;gap:18px}
.hero{grid-template-columns:1.15fr .85fr;align-items:stretch;margin-bottom:24px}.landing-hero{margin-top:16px}.hero h1{font-size:54px}.hero p{color:var(--muted);line-height:1.7}.hero-card{padding:26px;border-radius:30px;background:linear-gradient(180deg,#ffffff,#f7fbff);border:1px solid var(--border);box-shadow:var(--shadow);display:grid;gap:16px}.hero-card b{display:block;font-size:18px;margin-bottom:4px}.hero-card span{color:var(--muted)}
.card,.stat,.auth .form{background:rgba(255,255,255,.88);border:1px solid rgba(255,255,255,.8);backdrop-filter:blur(14px);border-radius:var(--radius);box-shadow:var(--shadow)}
.card{padding:22px}.stat{padding:22px;min-height:154px}.grid.stats{grid-template-columns:repeat(4,1fr);margin-bottom:18px}.stat span{display:block;color:var(--muted);font-weight:800}.stat b{display:block;font-size:42px;margin:12px 0 8px}.stat small{color:var(--muted)}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.section-head h2,.card h2,.card h3{margin:0}.section-head a{color:var(--brand);text-decoration:none;font-weight:800}
.split{grid-template-columns:1.3fr .9fr;margin-bottom:18px}.student-hero{grid-template-columns:1.15fr .85fr;margin-bottom:18px}.admin-grid{grid-template-columns:1fr 1fr;margin-bottom:18px}.role-grid{grid-template-columns:repeat(3,1fr)}.role-meters{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0}.role-meters div,.workflow,.mini,.article,.comment,.zoho-card{background:var(--surface-2);border:1px solid var(--border);border-radius:18px}
.role-meters div{padding:16px}.role-meters span{display:block;color:var(--muted);font-weight:700;font-size:13px}.role-meters b{display:block;font-size:28px;margin-top:6px}
.workflow{padding:18px;text-decoration:none;color:inherit;display:block;transition:.2s}.workflow:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(37,99,235,.08)}.workflow b{display:block;margin-bottom:8px}.workflow p{margin:0;color:var(--muted);line-height:1.6}
.hero-mini{background:linear-gradient(135deg,#f0fdfa,#eef4ff)}
.mini,.article{padding:16px;margin-bottom:12px}.mini b,.article h3{display:block;margin-bottom:6px}.mini span,.article p,.operator-note,.role-guide{color:#334155;line-height:1.6}.mini small,.article small{color:var(--muted)}
.table-wrap{overflow:auto}table{width:100%;border-collapse:separate;border-spacing:0 10px}th{text-align:left;padding:0 12px 8px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:12px}td{background:#f8fbff;padding:14px 12px;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}td:first-child{border-left:1px solid var(--border);border-radius:16px 0 0 16px}td:last-child{border-right:1px solid var(--border);border-radius:0 16px 16px 0}td small{display:block;color:var(--muted);margin-top:6px}.code{text-decoration:none;color:var(--brand);font-weight:900}
.pill{display:inline-flex;padding:6px 10px;border-radius:999px;background:#eef2ff;border:1px solid #dbe4ff;font-size:12px;font-weight:900;color:#334155}.p-high,.p-urgent{background:#fff1f2;border-color:#fecdd3;color:#be123c}.p-medium{background:#fffbeb;border-color:#fde68a;color:#92400e}.p-low{background:#ecfdf5;border-color:#a7f3d0;color:#065f46}.s-open{background:#eff6ff;border-color:#bfdbfe;color:#1d4ed8}.s-in_progress,.s-waiting_student{background:#fffbeb;border-color:#fde68a;color:#92400e}.s-resolved,.s-closed{background:#ecfdf5;border-color:#a7f3d0;color:#047857}.role-student{background:#ecfeff;border-color:#a5f3fc;color:#0f766e}.role-teacher{background:#eff6ff;border-color:#bfdbfe;color:#1d4ed8}.role-admin{background:#faf5ff;border-color:#e9d5ff;color:#7e22ce}
.form{display:grid;gap:14px}.form label{display:grid;gap:8px;font-weight:700;color:#334155}input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--border);background:#fff;color:var(--text);font:inherit;outline:none}input:focus,select:focus,textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 4px rgba(147,197,253,.22)}textarea{resize:vertical}
.desc{white-space:pre-wrap;line-height:1.75;color:#334155}.meta-grid{grid-template-columns:repeat(2,1fr);margin:16px 0}.meta-grid span{padding:14px 16px;background:#f8fbff;border:1px solid var(--border);border-radius:16px;color:var(--muted)}.meta-grid b{display:block;margin-top:5px;color:var(--text)}
.claim-box,.operator-note,.role-guide{margin-top:18px;padding:16px;border-radius:18px;border:1px solid var(--border);background:#f8fbff}.claim-box{display:flex;align-items:center;justify-content:space-between;gap:14px}.claim-box small,.operator-note small{color:var(--muted)}
.timeline{display:grid;gap:12px}.comment{padding:15px}.comment p{margin:8px 0;white-space:pre-wrap;color:#334155}.comment time,.comment small{color:var(--muted)}
.row-form{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.inline{margin-top:18px}.form-card{max-width:860px}.cards-list,.bar-list{display:grid;gap:12px}.bar-list div{display:flex;justify-content:space-between;padding:14px 16px;background:#f8fbff;border-radius:16px;border:1px solid var(--border)}
.chat-box{height:58vh;overflow:auto;display:grid;align-content:end;gap:12px;padding:14px;border-radius:20px;border:1px solid var(--border);background:#f8fbff}.bubble{max-width:72%;padding:12px 14px;border-radius:18px;background:#fff;border:1px solid var(--border);box-shadow:0 6px 18px rgba(15,23,42,.04)}.bubble.me{margin-left:auto;background:linear-gradient(135deg,#ecfeff,#eff6ff)}.bubble p{margin:6px 0 0;white-space:pre-wrap}.bubble small{color:var(--muted)}.chat-form{display:flex;gap:10px;margin-top:14px}
.auth{display:grid;place-items:center;min-height:80vh}.auth .form{width:min(560px,100%);padding:28px}
.empty{text-align:center;color:var(--muted);padding:22px}.status{font-weight:800;color:var(--muted)}hr{border:0;border-top:1px solid var(--border);margin:22px 0}
@media (max-width:1180px){.grid.stats{grid-template-columns:repeat(2,1fr)}.role-grid{grid-template-columns:1fr 1fr}.hero,.student-hero,.split,.admin-grid{grid-template-columns:1fr}}
@media (max-width:900px){.sidebar{position:static;width:auto;left:auto;top:auto;bottom:auto;margin:16px}.main{margin-left:0;padding:18px}.top{flex-direction:column}.profile{width:100%;justify-content:flex-start}.hero h1,h1{font-size:38px}}
@media (max-width:640px){.grid.stats,.role-grid,.meta-grid,.role-meters{grid-template-columns:1fr}.row-form,.chat-form,.actions,.claim-box{flex-direction:column;align-items:stretch}}