:root {
  --navy: #16213e;
  --navy-light: #1f2f57;
  --pink: #e4007c;
  --pink-dark: #b8005f;
  --petrol: #5c6e6c;
  --mint: #dce3df;
  --black: #1a1a1a;
  --gray: #6b7280;
  --bg: #f4f6f8;
  --shadow: 0 6px 20px rgba(22, 33, 62, 0.08);
  --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--black);
  background: var(--bg);
}
a { color: var(--pink); text-decoration: none; }
img, svg { display: block; max-width: 100%; }

/* Login */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(120deg, var(--navy) 0%, var(--navy-light) 55%, var(--petrol) 100%);
  padding: 20px;
}
.login-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px;
  width: 100%;
  max-width: 380px;
}
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.login-brand img { width: 74px; height: 42px; object-fit: contain; }
.login-brand span { font-weight: 800; font-size: 1.3rem; color: var(--navy); }
.login-brand span b { color: var(--pink); }
.login-card h1 { font-size: 1.2rem; color: var(--navy); margin-bottom: 20px; }

.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; color: var(--navy); }
.field input, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid #d8dde3;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--pink); }

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  transition: transform .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--pink); color: #fff; width: 100%; }
.btn-primary:hover { background: var(--pink-dark); }
.btn-outline { background: transparent; border: 1.5px solid var(--navy); color: var(--navy); }
.btn-danger { background: #fff; color: #c0234a; border: 1.5px solid #c0234a; padding: 8px 16px; font-size: 0.85rem; }
.btn-danger:hover { background: #c0234a; color: #fff; }

.msg-error {
  background: #fdeef2;
  color: #b8005f;
  border: 1px solid #f6c4d9;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 16px;
}
.msg-success {
  background: #e9f7ef;
  color: #1e7e42;
  border: 1px solid #bfe6cd;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

/* Admin-Layout */
.admin-layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px;
  background: var(--navy);
  color: #fff;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  padding: 24px 0;
}
.sidebar .brand { display: flex; align-items: center; gap: 10px; padding: 0 22px 24px; }
.sidebar .brand img { width: 62px; height: 35px; object-fit: contain; border-radius: 4px; }
.sidebar .brand span { font-weight: 800; color: var(--pink); }
.sidebar .brand span b { color: #fff; }
.sidebar nav { flex: 1; }
.sidebar nav a {
  display: block;
  color: var(--mint);
  padding: 12px 22px;
  font-weight: 600;
  font-size: 0.95rem;
  border-left: 3px solid transparent;
}
.sidebar nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.sidebar nav a.active { background: rgba(228,0,124,0.15); border-left-color: var(--pink); color: #fff; }
.sidebar-footer { padding: 0 22px; }
.sidebar-footer .user { color: var(--mint); font-size: 0.82rem; margin-bottom: 10px; }
.sidebar-footer button, .sidebar-footer a.logout {
  background: transparent;
  border: 1.5px solid rgba(255,255,255,0.3);
  color: #fff;
  width: 100%;
  padding: 9px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  text-align: center;
  display: block;
}
.sidebar-footer button:hover, .sidebar-footer a.logout:hover { border-color: var(--pink); color: var(--pink); }

.main {
  flex: 1;
  padding: 34px 40px;
  max-width: 1100px;
}
.main h1 { color: var(--navy); font-size: 1.6rem; margin-bottom: 6px; }
.main .sub { color: var(--gray); margin-bottom: 28px; }

.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 30px; }
.stat-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  border-top: 4px solid var(--pink);
}
.stat-card .num { font-size: 2rem; font-weight: 800; color: var(--navy); }
.stat-card .label { color: var(--gray); font-size: 0.9rem; margin-top: 4px; }

.card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
  margin-bottom: 24px;
}
.card h2 { color: var(--navy); font-size: 1.1rem; margin-bottom: 16px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid #edf0f2; font-size: 0.92rem; vertical-align: top; }
th { color: var(--gray); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.5px; }
tr.unread td { font-weight: 700; }
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}
.badge-new { background: var(--pink); color: #fff; }
.badge-read { background: var(--mint); color: var(--petrol); }

.empty-state { color: var(--gray); padding: 30px 0; text-align: center; }

/* Referenzen-Upload */
.upload-form { display: flex; gap: 16px; align-items: flex-end; flex-wrap: wrap; }
.upload-form .field { margin-bottom: 0; flex: 1; min-width: 200px; }

.ref-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 18px; margin-top: 20px; }
.ref-item { border-radius: 8px; overflow: hidden; box-shadow: var(--shadow); background: #fff; }
.ref-item img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.ref-item .meta { padding: 10px 12px; }
.ref-item .caption { font-size: 0.85rem; color: var(--black); margin-bottom: 8px; min-height: 1.2em; }

@media (max-width: 800px) {
  .admin-layout { flex-direction: column; }
  .sidebar { width: 100%; flex-direction: row; align-items: center; padding: 12px 16px; overflow-x: auto; }
  .sidebar .brand { padding: 0; margin-right: 16px; }
  .sidebar nav { display: flex; }
  .sidebar nav a { padding: 8px 14px; white-space: nowrap; border-left: none; border-bottom: 3px solid transparent; }
  .sidebar nav a.active { border-left: none; border-bottom-color: var(--pink); }
  .sidebar-footer { display: none; }
  .main { padding: 24px 20px; }
  .stat-grid { grid-template-columns: 1fr; }
}