/* UPDATE SERVER — Διαχείριση. Χρώματα από το logo: μπλε + πράσινο. */
:root{
  --blue:#1f6fd0; --blue-d:#14498c; --blue-l:#4a9bf0;
  --green:#49b81e; --green-d:#2f7d12; --green-l:#6fd93f;
  --ink:#11202f; --ink-2:#33475b; --muted:#6b7c8d;
  --bg:#eef2f6; --card:#ffffff; --line:#d9e1ea;
  --danger:#c62828; --danger-bg:#fdecea; --ok:#2e7d32; --ok-bg:#e8f5e9; --warn:#b26a00; --warn-bg:#fff4e0;
  --sidebar:#0f1f2e; --sidebar-2:#16293b; --sidebar-ink:#c4d3e0;
  --radius:12px; --shadow:0 2px 14px rgba(16,32,48,.08);
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}

/* ---------- Layout ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{width:252px;flex:0 0 252px;background:linear-gradient(180deg,var(--sidebar),var(--sidebar-2));color:var(--sidebar-ink);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}
.sidebar-brand{padding:18px 16px 12px;text-align:center;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar-brand img{max-width:100%;height:auto;display:block}
.sidebar-brand .ver{font-size:11px;color:#8ba3bc;margin-top:4px;letter-spacing:.5px}
.nav{padding:10px 8px;flex:1}
.nav .group{margin:6px 0}
.nav .group-title{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:#6f8aa5;padding:10px 12px 4px;font-weight:700}
.nav a{display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:9px;color:var(--sidebar-ink);font-weight:500;font-size:14px}
.nav a:hover{background:rgba(255,255,255,.06);text-decoration:none;color:#fff}
.nav a.active{background:linear-gradient(90deg,var(--blue),var(--blue-d));color:#fff;box-shadow:0 2px 8px rgba(31,111,208,.4)}
.nav a .ico{width:18px;text-align:center;flex:0 0 18px}
.nav .sub a{padding-left:34px;font-size:13.5px}
.sidebar-foot{padding:12px 16px;border-top:1px solid rgba(255,255,255,.08);font-size:12px}
.sidebar-foot a{color:#9fb6cd}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:none;align-items:center;gap:10px;background:var(--sidebar);color:#fff;padding:10px 14px;position:sticky;top:0;z-index:30}
.topbar .burger{background:none;border:0;color:#fff;font-size:22px;cursor:pointer;width:42px;height:42px}
.topbar .t-brand{font-weight:800;letter-spacing:.5px}
.content{padding:22px;max-width:1200px;width:100%;margin:0 auto}

/* ---------- Common ---------- */
.page-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.page-head h1{font-size:1.5rem;margin:0}
.crumbs{color:var(--muted);font-size:13px;margin-bottom:4px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}
.card h2{font-size:1.1rem;margin:0 0 12px}
.grid{display:grid;gap:16px}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}

.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;display:flex;flex-direction:column;gap:4px}
.stat .n{font-size:1.9rem;font-weight:800;color:var(--blue-d)}
.stat .l{font-size:13px;color:var(--muted)}
.stat.green .n{color:var(--green-d)}
.stat.warn .n{color:var(--warn)}
.stat.danger .n{color:var(--danger)}

label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin:10px 0 4px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font:inherit;background:#fff;min-height:42px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--blue-l);border-color:var(--blue-l)}
textarea{min-height:90px;resize:vertical}
.btn{display:inline-flex;align-items:center;gap:7px;padding:10px 16px;border:0;border-radius:9px;font:inherit;font-weight:700;cursor:pointer;min-height:42px;background:var(--blue);color:#fff}
.btn:hover{background:var(--blue-d);text-decoration:none}
.btn.green{background:var(--green)}.btn.green:hover{background:var(--green-d)}
.btn.ghost{background:#eef3f8;color:var(--ink-2)}.btn.ghost:hover{background:#e0e8f1}
.btn.danger{background:var(--danger)}
.btn.sm{padding:6px 10px;min-height:34px;font-size:13px}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>*{flex:1;min-width:160px}

table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:middle}
th{font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted)}
.table-wrap{overflow-x:auto}

.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:700}
.badge.active{background:var(--ok-bg);color:var(--ok)}
.badge.warn{background:var(--warn-bg);color:var(--warn)}
.badge.danger{background:var(--danger-bg);color:var(--danger)}
.badge.plat{background:#e8f0fb;color:var(--blue-d)}

.flash{padding:12px 14px;border-radius:9px;margin-bottom:14px;font-weight:600}
.flash.ok{background:var(--ok-bg);color:var(--ok)}
.flash.error{background:var(--danger-bg);color:var(--danger)}
.flash.info{background:#e8f0fb;color:var(--blue-d)}
.empty{text-align:center;color:var(--muted);padding:30px}

/* ---------- Login ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,#eef2f6,#dde7f1)}
.login-card{background:#fff;border-radius:18px;box-shadow:0 10px 40px rgba(16,32,48,.18);padding:30px;max-width:410px;width:100%;text-align:center}
.login-card img{max-width:260px;width:100%;height:auto;margin-bottom:8px}
.login-card h1{font-size:1.1rem;color:var(--ink-2);font-weight:600;margin:0 0 18px}
.login-card form{text-align:left}

/* ---------- Mobile ---------- */
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:40}
@media(max-width:860px){
  .topbar{display:flex}
  .sidebar{position:fixed;left:0;top:0;bottom:0;z-index:50;transform:translateX(-100%);transition:transform .22s;box-shadow:4px 0 24px rgba(0,0,0,.3)}
  body.nav-open .sidebar{transform:translateX(0)}
  body.nav-open .overlay{display:block}
  .grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr}
  .content{padding:16px}
}