:root {
  --navy: #1b2a3a;
  --navy-light: #2b3f54;
  --accent: #c8721b;
  --bg: #f4f6f8;
  --card: #ffffff;
  --border: #d9e0e6;
  --text: #1c2530;
  --text-muted: #64748b;
  --success: #1f7a4d;
  --success-bg: #e6f4ec;
  --pending-bg: #fdf1e4;
  --pending-text: #a05a12;
  --radius: 6px;
  --font: -apple-system, "Segoe UI", Roboto, "Inter", Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--navy); }

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 235px;
  background: var(--navy);
  color: #fff;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}

.sidebar .brand {
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar .brand img {
  max-width: 150px;
  max-height: 46px;
  display: block;
  margin-bottom: 6px;
}

.sidebar .brand small {
  display: block;
  font-weight: 400;
  font-size: 12px;
  color: #9fb0c0;
}

.sidebar nav { padding: 14px 0; flex: 1; }

.sidebar nav a {
  display: block;
  padding: 11px 20px;
  color: #cbd6e0;
  text-decoration: none;
  font-size: 14px;
  border-left: 3px solid transparent;
}

.sidebar nav a:hover, .sidebar nav a.active {
  background: var(--navy-light);
  color: #fff;
  border-left-color: var(--accent);
}

.sidebar .user-box {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 13px;
  color: #9fb0c0;
}

.sidebar .user-box a { color: #f0b98c; text-decoration: none; }

.main { flex: 1; padding: 28px 34px; max-width: 1100px; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
}

.topbar h1 { font-size: 21px; margin: 0; font-weight: 600; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 20px;
}

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.4px; }
tr:last-child td { border-bottom: none; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12.5px; font-weight: 600; }
.badge.pending { background: var(--pending-bg); color: var(--pending-text); }
.badge.completed { background: var(--success-bg); color: var(--success); }
.badge.muted-badge { background: #eef1f4; color: var(--text-muted); }

.btn {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  border: none;
  padding: 9px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { background: var(--navy-light); }
.btn.accent { background: var(--accent); }
.btn.accent:hover { background: #a95f14; }
.btn.small { padding: 5px 12px; font-size: 13px; }
.btn.secondary { background: #fff; color: var(--navy); border: 1px solid var(--border); }

label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 5px; }

input[type=text], input[type=email], input[type=password], input[type=file],
select, textarea {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: var(--font);
  margin-bottom: 15px;
  background: #fff;
}

.form-row { max-width: 440px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.checkbox-row input { width: auto; margin: 0; }
.checkbox-row label { margin: 0; font-weight: 400; }

.alert { padding: 11px 16px; border-radius: var(--radius); margin-bottom: 18px; font-size: 14px; }
.alert.success { background: var(--success-bg); color: var(--success); }
.alert.error { background: #fbe7e7; color: #a02020; }

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
}

.login-box { background: #fff; padding: 36px 38px; border-radius: var(--radius); width: 100%; max-width: 360px; }
.login-box img { max-width: 170px; margin-bottom: 18px; }
.login-box h1 { font-size: 18px; margin: 0 0 3px; }
.login-box p.sub { color: var(--text-muted); font-size: 13.5px; margin: 0 0 22px; }

.muted { color: var(--text-muted); font-size: 13.5px; }

.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); }

.notif-dot {
  background: var(--accent);
  color: #fff;
  border-radius: 20px;
  font-size: 11px;
  padding: 1px 7px;
  margin-left: 6px;
}

/* --- Mesajlaşma --- */
.thread { display: flex; flex-direction: column; gap: 14px; margin-bottom: 18px; }

.msg { max-width: 72%; padding: 10px 14px; border-radius: 10px; background: #eef1f4; }
.msg.mine { align-self: flex-end; background: #dce7f0; }
.msg .meta { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.msg .file-link { display: inline-block; margin-top: 6px; font-size: 13px; }
.msg p { margin: 0; white-space: pre-wrap; }

.perm-list { list-style: none; padding: 0; margin: 0 0 15px; }
.perm-list li { padding: 3px 0; font-size: 13.5px; }