:root{
  --bone:#f4f1ea; --paper:#fffdf8; --ink:#1a1a2e; --navy:#1f3a5f; --accent:#c0392b;
  --line:#d9d3c7; --mute:#6b6457; --ok:#2d8a4e;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bone);color:var(--ink);line-height:1.5}
.wrap{max-width:760px;margin:0 auto;padding:24px 18px 60px}
.head{display:flex;align-items:center;gap:14px;padding:22px 0;border-bottom:2px solid var(--ink);margin-bottom:24px}
.head .logo{width:46px;height:46px;border-radius:10px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:800;font-size:20px}
.head h1{font-size:22px;letter-spacing:-.01em}
.head p{font-size:13px;color:var(--mute)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:0 1px 0 rgba(0,0,0,.03)}
.field{margin-bottom:16px}
label{display:block;font-weight:600;font-size:13.5px;margin-bottom:6px}
.req{color:var(--accent)}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:9px;font-size:15px;background:#fff;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(31,58,95,.12)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.row3{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:14px}
.hint{font-size:12px;color:var(--mute);margin-top:5px}
.section-title{font-weight:800;font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:var(--navy);margin:26px 0 12px;padding-bottom:6px;border-bottom:1px solid var(--line)}
.course-row{display:grid;grid-template-columns:1fr 1.6fr auto;gap:10px;margin-bottom:10px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:8px;border:none;border-radius:9px;padding:12px 18px;font-size:15px;font-weight:700;cursor:pointer;font-family:inherit}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:#16304f}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn-sm{padding:7px 12px;font-size:13px}
.btn-danger{background:#fff;border:1px solid var(--accent);color:var(--accent)}
.btn-add{background:#eef2f7;color:var(--navy);border:1px dashed var(--navy)}
.x{background:#fbe9e7;color:var(--accent);border:none;border-radius:8px;width:38px;height:38px;font-size:18px;cursor:pointer}
.actions{margin-top:24px;display:flex;gap:12px;align-items:center}
.note{font-size:12.5px;color:var(--mute);background:#eef2f7;border-radius:9px;padding:10px 12px;margin-bottom:18px;border-left:3px solid var(--navy)}
.toast{position:fixed;left:50%;top:20px;transform:translateX(-50%);background:var(--ok);color:#fff;padding:12px 20px;border-radius:10px;font-weight:700;box-shadow:0 6px 20px rgba(0,0,0,.18);opacity:0;transition:.3s;z-index:50}
.toast.show{opacity:1}
.toast.err{background:var(--accent)}
.success{text-align:center;padding:40px 20px}
.success .big{font-size:48px}
.success h2{margin:10px 0;font-size:24px}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:10px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--mute)}
tr:hover td{background:#faf8f3}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.toolbar input{max-width:280px}
.pill{display:inline-block;background:#eef2f7;border-radius:20px;padding:2px 9px;font-size:11.5px;margin:2px 2px 0 0;color:var(--navy)}
.muted{color:var(--mute)}
.center{min-height:80vh;display:grid;place-items:center}
.login{max-width:360px;width:100%}
.count{font-size:13px;color:var(--mute);margin-left:auto}
@media(max-width:640px){.row,.row3{grid-template-columns:1fr}.course-row{grid-template-columns:1fr 1fr auto}}