:root{
  --blue:#0b3d91;
  --bg:#f4f7fb;
  --text:#0b1220;
  --muted:#64748b;
  --card:#ffffff;
  --shadow: 0 10px 25px rgba(2, 6, 23, .10);
  --radius: 16px;
}

*{ box-sizing:border-box; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar{
  position: sticky; top:0;
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 18px;
  background: linear-gradient(90deg, #08306b, var(--blue));
  color:#fff;
  box-shadow: 0 6px 18px rgba(0,0,0,.15);
  z-index:10;
}
.brand{ display:flex; flex-direction:column; gap:2px; }
.logo{ font-weight:800; font-size: 26px; letter-spacing:.3px; font-style: italic; }
.subtitle{ font-weight:600; opacity:.95; }
.adminlink{
  color:#fff; text-decoration:none;
  width:42px; height:42px; border-radius: 12px;
  display:grid; place-items:center;
  background: rgba(255,255,255,.12);
}
.adminlink:hover{ background: rgba(255,255,255,.18); }

.container{ max-width: 1100px; margin: 18px auto; padding: 0 14px 22px; }

.grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.card{
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  display:flex;
  gap: 14px;
  align-items:center;
  text-decoration:none;
  color: inherit;
  border-left: 10px solid var(--cardColor, var(--blue));
  transition: transform .12s ease, box-shadow .12s ease;
}
.card:hover{
  transform: translateY(-2px);
  box-shadow: 0 16px 35px rgba(2, 6, 23, .16);
}
.card-icon{
  width:54px; height:54px;
  border-radius: 14px;
  display:grid; place-items:center;
  background: color-mix(in srgb, var(--cardColor, var(--blue)) 14%, white);
  color: var(--cardColor, var(--blue));
  font-size: 22px;
}
.card-title{ font-weight:800; font-size: 18px; line-height:1.1; }
.card-desc{ margin-top:4px; font-size: 13px; color: var(--muted); }
.card-go{ margin-left:auto; color: var(--muted); }

.footer{
  padding: 16px 14px 22px;
  color: var(--muted);
  text-align:center;
  font-size: 13px;
}


.logo-img{
  height:42px;
  width:auto;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
}

.brand-text{
  display:flex;
  flex-direction:column;
}


/* ===== Intranet look & feel + Dark mode ===== */
:root{
  --bg2: #eaf0ff;
  --surface: #ffffff;
  --surface2: #f7f9ff;
  --border: #e2e8f0;
  --topGrad1:#062a5a;
  --topGrad2:#0b3d91;
  --topGrad3:#0f5bb5;
}

body{
  background: radial-gradient(1200px 800px at 20% 0%, var(--bg2), var(--bg));
}

/* Centered brand (logo on top, title below) */
.topbar{
  padding: 14px 18px 16px;
  background: linear-gradient(90deg, var(--topGrad1), var(--topGrad2), var(--topGrad3));
}

.topbar .brand{
  width: 100%;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:0;
  text-align:center;
}

.topbar .brand-text{
  display:flex;
  flex-direction:column;
  align-items:center;
}

.logo-img{
  height:44px;
  width:auto;
  filter: drop-shadow(0 6px 12px rgba(0,0,0,.18));
  margin-bottom:6px;
}

.topbar .subtitle{
  font-weight:800;
  letter-spacing:.2px;
}

.admin-actions{
  position:absolute;
  right: 14px;
  top: 12px;
  display:flex;
  gap:10px;
}

.topbar{
  position: sticky;
}

.adminlink{
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.18);
}

.card{
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface), var(--surface2));
}

.card-title{ letter-spacing:.2px; }
.card-desc{ line-height:1.25; }

/* Toggle button */
.theme-toggle{
  color:#fff;
  text-decoration:none;
  width:42px; height:42px;
  border-radius: 12px;
  display:grid; place-items:center;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  cursor:pointer;
}
.theme-toggle:hover{ background: rgba(255,255,255,.18); }

/* Dark mode variables: default follows system, plus manual override */
:root[data-theme="dark"]{
  --bg:#0b1020;
  --bg2:#070b16;
  --text:#e5e7eb;
  --muted:#94a3b8;
  --card:#0f172a;
  --surface:#0f172a;
  --surface2:#0b1324;
  --border:#1f2a44;
  --shadow: 0 12px 30px rgba(0,0,0,.45);
  --topGrad1:#030712;
  --topGrad2:#0b1b3a;
  --topGrad3:#123a7a;
}

:root[data-theme="dark"] .card-icon{
  background: rgba(255,255,255,.06);
}

:root[data-theme="dark"] .card{
  border-color: var(--border);
}

:root[data-theme="dark"] .adminlink,
:root[data-theme="dark"] .theme-toggle{
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.14);
}

/* Respect system preference if no manual selection */
@media (prefers-color-scheme: dark){
  :root:not([data-theme]){
    --bg:#0b1020;
    --bg2:#070b16;
    --text:#e5e7eb;
    --muted:#94a3b8;
    --card:#0f172a;
    --surface:#0f172a;
    --surface2:#0b1324;
    --border:#1f2a44;
    --shadow: 0 12px 30px rgba(0,0,0,.45);
    --topGrad1:#030712;
    --topGrad2:#0b1b3a;
    --topGrad3:#123a7a;
  }
  :root:not([data-theme]) .card-icon{ background: rgba(255,255,255,.06); }
  :root:not([data-theme]) .card{ border-color: var(--border); }
  :root:not([data-theme]) .adminlink,
  :root:not([data-theme]) .theme-toggle{
    background: rgba(255,255,255,.08);
    border-color: rgba(255,255,255,.14);
  }
}