/* VeliKöprü v1.0 — Arayüz stilleri */
:root{
  --bg:#f4f6fb; --card:#ffffff; --ink:#1f2a44; --muted:#6b7793;
  --brand:#2d6cdf; --brand-dark:#1f4fb0; --line:#e6eaf2;
  --ok:#1f9d55; --warn:#d98c00; --bad:#d64545; --info:#2d6cdf;
  --radius:14px; --shadow:0 2px 10px rgba(30,45,90,.06);
}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",system-ui,Arial,sans-serif;background:var(--bg);color:var(--ink);}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0 0 .4em}
small{color:var(--muted)}

/* ---------- Giriş sayfası ---------- */
.login-wrap{min-height:100vh;display:grid;place-items:center;
  background:linear-gradient(135deg,#2d6cdf,#5b3ecf);padding:24px}
.login-card{background:var(--card);border-radius:20px;box-shadow:0 20px 60px rgba(20,30,70,.25);
  width:100%;max-width:430px;padding:34px 30px}
.login-card .logo-big{font-size:44px;text-align:center}
.login-card h1{text-align:center;margin:.2em 0 0;font-size:26px}
.login-card .sub{text-align:center;color:var(--muted);margin-bottom:22px}
.role-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:18px}
.role-grid label{border:2px solid var(--line);border-radius:12px;padding:12px;text-align:center;
  cursor:pointer;font-weight:600;transition:.15s;background:#fafbfe}
.role-grid input{display:none}
.role-grid label .ic{display:block;font-size:24px;margin-bottom:4px}
.role-grid input:checked+span,.role-grid label.sel{}
.role-grid input:checked ~ *{}
.role-grid label:has(input:checked){border-color:var(--brand);background:#eef4ff;color:var(--brand-dark)}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--muted)}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;
  font-size:15px;font-family:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(45,108,223,.15)}
.btn{display:inline-block;background:var(--brand);color:#fff;border:none;border-radius:10px;
  padding:11px 18px;font-size:15px;font-weight:600;cursor:pointer;transition:.15s;text-decoration:none}
.btn:hover{background:var(--brand-dark);text-decoration:none}
.btn-block{width:100%}
.btn-sm{padding:6px 11px;font-size:13px;border-radius:8px}
.btn-ghost{background:#eef2fb;color:var(--brand-dark)}
.btn-ghost:hover{background:#e0e8f8}
.btn-danger{background:var(--bad)}.btn-danger:hover{background:#b93636}
.btn-ok{background:var(--ok)}.btn-ok:hover{background:#177a41}
.login-links{display:flex;justify-content:space-between;margin-top:14px;font-size:13px}
.demo-box{margin-top:18px;padding:12px;background:#f6f8fd;border:1px dashed var(--line);border-radius:10px;
  font-size:12.5px;color:var(--muted)}
.demo-box b{color:var(--ink)}

/* ---------- Panel düzeni ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{width:250px;background:#132038;color:#c9d4ea;display:flex;flex-direction:column;flex-shrink:0}
.sidebar .brand{padding:20px 18px;font-weight:700;font-size:18px;color:#fff;border-bottom:1px solid #22304f}
.sidebar .brand .logo{font-size:22px}
.sidebar .brand small{color:#7f8db0;font-weight:500}
.role-badge{margin:12px 14px;padding:6px 10px;border-radius:8px;font-size:12px;font-weight:700;
  text-align:center;background:#1d2c4a;color:#8fb3ff}
.role-badge.role-admin{color:#ffb37a}.role-badge.role-teacher{color:#8fb3ff}
.role-badge.role-parent{color:#8fe0b0}.role-badge.role-student{color:#e0a0ff}
.sidebar nav{display:flex;flex-direction:column;padding:6px 10px;gap:2px}
.sidebar nav a{color:#c9d4ea;padding:10px 12px;border-radius:9px;font-size:14.5px;display:flex;
  align-items:center;gap:10px}
.sidebar nav a:hover{background:#1d2c4a;text-decoration:none}
.sidebar nav a.active{background:var(--brand);color:#fff}
.sidebar nav a.logout{margin-top:14px;color:#ff9c9c}
.sidebar nav .mi{width:22px;text-align:center}
.content{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:16px 26px;
  background:var(--card);border-bottom:1px solid var(--line)}
.topbar h1{font-size:20px;margin:0}
.user-chip{display:flex;align-items:center;gap:9px;font-weight:600;font-size:14px}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;display:grid;
  place-items:center;font-weight:700}
.page{padding:24px 26px;flex:1}
.foot{padding:14px 26px;color:var(--muted);font-size:12.5px;border-top:1px solid var(--line);background:var(--card)}

/* ---------- Bileşenler ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:22px}
.stat{background:var(--card);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);
  border:1px solid var(--line)}
.stat .n{font-size:30px;font-weight:800;color:var(--brand-dark);line-height:1}
.stat .l{color:var(--muted);font-size:13.5px;margin-top:6px}
.stat .ic{float:right;font-size:26px;opacity:.7}

.card{background:var(--card);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);
  border:1px solid var(--line);margin-bottom:20px}
.card h2{font-size:17px;display:flex;justify-content:space-between;align-items:center}
.card h2 .actions{display:flex;gap:8px;font-size:13px}

.toolbar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;align-items:center}
.toolbar .spacer{flex:1}
.toolbar form{display:flex;gap:8px;margin:0}
.toolbar input,.toolbar select{width:auto;min-width:180px}

table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:right;padding:10px 12px;border-bottom:1px solid var(--line)}
th{background:#f7f9fd;color:var(--muted);font-weight:600;font-size:12.5px;text-transform:uppercase;
  letter-spacing:.3px;text-align:right}
td:first-child,th:first-child{text-align:right}
table thead th{text-align:right}
tbody tr:hover{background:#fafcff}
.actions-cell{display:flex;gap:6px;flex-wrap:wrap}

.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600}
.b-ok{background:#e3f6ec;color:var(--ok)}
.b-warn{background:#fdf0dc;color:var(--warn)}
.b-bad{background:#fbe4e4;color:var(--bad)}
.b-info{background:#e7f0ff;color:var(--info)}
.b-mut{background:#eef1f6;color:var(--muted)}

.alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-weight:500}
.alert-success{background:#e3f6ec;color:#177a41;border:1px solid #bfe6cd}
.alert-error{background:#fbe4e4;color:#b93636;border:1px solid #f0c2c2}
.alert-info{background:#e7f0ff;color:#1f4fb0;border:1px solid #c3d7fa}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:820px){.grid2,.grid3{grid-template-columns:1fr}.sidebar{width:64px}
  .sidebar .brand span:not(.logo),.sidebar .brand small,.sidebar nav a span:not(.mi),.role-badge{display:none}}

.hw-list{display:grid;gap:12px}
.hw{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;box-shadow:var(--shadow)}
.hw .top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.hw h3{font-size:16px;margin:0 0 4px}
.hw .meta{color:var(--muted);font-size:13px;display:flex;gap:14px;flex-wrap:wrap;margin:6px 0}
.hw .desc{font-size:14px;margin:8px 0}
.empty{text-align:center;color:var(--muted);padding:40px 20px}
.empty .big{font-size:40px;margin-bottom:8px}

.form-row{margin-bottom:14px}
.form-row label{display:block;font-weight:600;font-size:13px;margin-bottom:6px}
.help{color:var(--muted);font-size:12px;margin-top:4px}
.inline-form{display:inline}
.modal-note{color:var(--muted);font-size:13px;margin-bottom:14px}