:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --ink: #1d2733;
  --muted: #6b7785;
  --line: #e1e6ec;
  --brand: #1f5fbf;
  --brand-dark: #174a96;
  --ok: #1a7f4b;
  --ok-bg: #e6f5ec;
  --warn: #9a6700;
  --warn-bg: #fff4d6;
  --bad: #b42318;
  --bad-bg: #fde8e6;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  font-size: 15px;
  color: var(--ink);
  background: var(--bg);
}

body.plain { padding: 24px 16px; }

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- üst menü */
.topbar {
  background: #14233a;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 20px;
  flex-wrap: wrap;
}
.topbar .brand { font-weight: 600; margin-right: 18px; padding: 14px 0; }
.topbar a, .topbar .linkbtn {
  color: #cfd8e6;
  padding: 14px 12px;
  display: inline-block;
  background: none;
  border: 0;
  font: inherit;
  cursor: pointer;
}
.topbar a:hover, .topbar .linkbtn:hover { color: #fff; text-decoration: none; background: #1d3354; }
.topbar .spacer { flex: 1; }
.topbar .who { color: #9fb0c9; padding: 14px 8px; }
.badge {
  display: inline-block;
  min-width: 20px;
  padding: 1px 6px;
  border-radius: 10px;
  background: #e5484d;
  color: #fff;
  font-size: 12px;
  text-align: center;
  margin-left: 4px;
}

/* ---- sayfa */
.page { max-width: 1060px; margin: 24px auto; padding: 0 16px; }
h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 17px; margin: 0 0 12px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 18px;
}
.card.narrow { max-width: 420px; margin: 40px auto; }
.card.center { text-align: center; }

.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.toolbar .grow { flex: 1; }

/* ---- form */
label { display: block; font-weight: 600; margin: 12px 0 4px; }
input[type=text], input[type=email], input[type=password], textarea, select {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid #c8d0da;
  border-radius: 6px;
  font: inherit;
  background: #fff;
}
input[type=file] { margin-top: 4px; }
textarea { min-height: 80px; resize: vertical; }
.hint { color: var(--muted); font-size: 13px; margin-top: 4px; }

.btn, input[type=submit].btn {
  display: inline-block;
  padding: 9px 16px;
  border: 0;
  border-radius: 6px;
  background: var(--brand);
  color: #fff;
  font: inherit;
  cursor: pointer;
}
.btn:hover { background: var(--brand-dark); text-decoration: none; }
.btn.secondary { background: #e8edf3; color: var(--ink); }
.btn.secondary:hover { background: #d9e0e9; }
.btn.danger { background: var(--bad); }
.btn.small { padding: 5px 10px; font-size: 13px; }

/* ---- tablo */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
tr:last-child td { border-bottom: 0; }
.table-wrap { overflow-x: auto; }

.pill { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 13px; }
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.wait { background: var(--warn-bg); color: var(--warn); }
.pill.off { background: #eceff3; color: var(--muted); }

.msg { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; }
.msg.ok { background: var(--ok-bg); color: var(--ok); }
.msg.err { background: var(--bad-bg); color: var(--bad); }
.msg.info { background: #e8f0fc; color: var(--brand-dark); }

.muted { color: var(--muted); }
.linkbox { display: flex; gap: 8px; }
.linkbox input { flex: 1; }

.unread td { background: #f3f8ff; }

.viewer { width: 100%; height: 75vh; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.filelist { list-style: none; padding: 0; margin: 0; }
.filelist li { padding: 10px 0; border-bottom: 1px solid var(--line); display: flex; gap: 10px; align-items: center; }
.filelist li:last-child { border-bottom: 0; }
.filelist .grow { flex: 1; }

@media (max-width: 640px) {
  .topbar { padding: 0 8px; }
  .topbar a, .topbar .linkbtn { padding: 10px 8px; }
}