/* ===========================================================
   LearnSchool — Umumiy zamonaviy dizayn (shared theme)
   =========================================================== */
:root{
  --bg:#f4f6fb;
  --surface:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:rgba(15,23,42,.10);
  --shadow:0 10px 30px rgba(2,6,23,.07);
  --shadow-lg:0 18px 45px rgba(2,6,23,.12);
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --accent:#16a34a;
  --danger:#dc2626;
  --radius:18px;
}

*{ box-sizing:border-box; }

body{
  background:var(--bg);
  color:var(--text);
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{ text-decoration:none; }

/* Buttons */
.btn-pill{ border-radius:999px; }
.btn-primary{ background:var(--primary); border-color:var(--primary); }
.btn-primary:hover,.btn-primary:focus{ background:var(--primary-dark); border-color:var(--primary-dark); }
.btn-outline-primary{ color:var(--primary); border-color:var(--primary); }
.btn-outline-primary:hover{ background:var(--primary); border-color:var(--primary); }

/* Cards / panels */
.card-soft,.panel{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.card-soft{ transition:transform .16s ease, box-shadow .16s ease; }
.card-soft:hover{ transform:translateY(-3px); box-shadow:var(--shadow-lg); }

/* Auth pages (login/register) */
.auth-wrap{
  min-height:100vh;
  display:flex; align-items:center; justify-content:center;
  padding:24px;
  background:
    radial-gradient(900px 500px at 10% -10%, rgba(37,99,235,.16), transparent 60%),
    radial-gradient(900px 500px at 110% 110%, rgba(22,163,74,.16), transparent 60%),
    var(--bg);
}
.auth-card{
  width:100%; max-width:460px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:24px;
  box-shadow:var(--shadow-lg);
  padding:34px 30px;
}
.auth-card.wide{ max-width:560px; }
.auth-brand{
  display:flex; align-items:center; gap:10px;
  justify-content:center; margin-bottom:6px; font-weight:900;
}
.auth-brand .mark{
  width:42px;height:42px;border-radius:13px;
  background:linear-gradient(135deg,var(--primary),#22c55e);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:900;
  box-shadow:0 10px 24px rgba(37,99,235,.25);
}
.auth-title{ text-align:center; font-weight:900; margin:4px 0 22px; }
.form-label{ font-weight:600; font-size:14px; }
.form-control,.form-select{ border-radius:12px; padding:11px 14px; }
.form-control:focus,.form-select:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 .2rem rgba(37,99,235,.15);
}

/* Lang switcher */
.lang-switcher .dropdown-menu{ border-radius:14px; min-width:170px; }
.lang-switcher .dropdown-item.active{
  background:rgba(37,99,235,.10); color:var(--primary-dark); font-weight:700;
}

/* Sidebar (dashboard layout) */
.app{ min-height:100vh; display:flex; }
.sidebar{
  width:270px; background:var(--surface);
  border-right:1px solid var(--border);
  padding:18px 14px; position:sticky; top:0; height:100vh;
}
.sidebar .brand{ display:flex; align-items:center; gap:10px; padding:10px 10px 14px; font-weight:800; }
.sidebar .logo{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--primary),#22c55e);
}
.side-menu a{
  display:flex; align-items:center; gap:10px;
  padding:11px 13px; border-radius:12px;
  color:#2b2f38; font-weight:600; margin-bottom:6px;
  transition:background .14s ease,color .14s ease;
}
.side-menu a:hover{ background:#eef2ff; }
.side-menu a.active{ background:#e0e7ff; color:var(--primary-dark); }
.content{ flex:1; padding:20px 26px; min-width:0; }
.topbar{ display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:16px; flex-wrap:wrap; }
.topbar .title{ display:flex; align-items:center; gap:10px; font-weight:900; font-size:22px; }
.date-badge{ font-size:13px; color:var(--muted); }
.panel{ padding:18px; }

@media (max-width:992px){
  .sidebar{ display:none; }
  .content{ padding:14px; }
}