:root {
  --accent: #1d4ed8; --bg: #eff6ff; --panel: #ffffff;
  --text: #1e3a8a; --muted: #3b5998;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.55; }
a { color: var(--accent); }
header {
  background: var(--panel); border-bottom: 3px solid var(--accent); padding: 1rem 1.5rem;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: .75rem;
}
header .logo { font-weight: 800; font-size: 1.15rem; color: var(--text); text-decoration: none; }
nav a { margin-left: 1rem; color: var(--muted); text-decoration: none; font-size: .92rem; }
nav a:hover { color: var(--accent); }
main { max-width: 960px; margin: 0 auto; padding: 2rem 1.25rem 3rem; }
.hero { background: var(--panel); border-radius: 12px; padding: 2rem; border: 1px solid #00000012; margin-bottom: 1.5rem; }
.hero h1 { margin: 0 0 .5rem; font-size: 1.85rem; }
.hero p { margin: 0; color: var(--muted); max-width: 42rem; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--panel); border: 1px solid #00000012; border-radius: 10px; padding: 1.25rem; }
.card h2 { margin: 0 0 .5rem; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: .92rem; }
.btn {
  display: inline-block; background: var(--accent); color: #fff !important;
  padding: .7rem 1.2rem; border-radius: 8px; text-decoration: none; font-weight: 700; border: 0; cursor: pointer;
}
.btn-outline { background: transparent; color: var(--accent) !important; border: 2px solid var(--accent); }
table.settings { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.settings th, table.settings td { text-align: left; padding: .65rem .5rem; border-bottom: 1px solid #00000014; }
table.settings th { color: var(--muted); font-weight: 600; width: 38%; }
form { display: grid; gap: .75rem; max-width: 480px; }
label { display: grid; gap: .3rem; font-size: .88rem; color: var(--muted); }
input, textarea { padding: .65rem .75rem; border: 1px solid #00000022; border-radius: 6px; font: inherit; background: #fff; }
footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 2rem 1rem; border-top: 1px solid #00000012; margin-top: 2rem; }
.webmail-box { max-width: 380px; margin: 1.5rem auto 0; padding: 1.5rem; background: var(--panel); border-radius: 10px; border: 1px solid #00000015; }