*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:   #2C3E6B;
  --navy2:  #1e2c4f;
  --accent: #4a7bcf;
  --green:  #27ae60;
  --red:    #c0392b;
  --gray:   #6b7a99;
  --light:  #f0f3fa;
  --border: #dce2ef;
  --white:  #ffffff;
  --text:   #1a2240;
  --radius: 12px;
}

html, body {
  height: 100%;
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 15px;
  color: var(--text);
  background: var(--light);
}

/* ── LOGIN ───────────────────────────────────────────────────────────────────── */
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.login-box {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 32px;
  max-width: 380px;
  width: 100%;
  box-shadow: 0 4px 24px rgba(44,62,107,.13);
}

.login-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.login-logo svg {
  width: 44px;
  height: 44px;
  background: var(--navy);
  border-radius: 10px;
  padding: 6px;
}

.login-logo span {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
}

.login-box h1 {
  font-size: 22px;
  color: var(--navy);
  margin-bottom: 20px;
}

/* ── FORMS ───────────────────────────────────────────────────────────────────── */
label { display: block; font-size: 13px; color: var(--gray); margin-bottom: 4px; }

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  color: var(--text);
  background: var(--white);
  margin-bottom: 14px;
  outline: none;
  transition: border-color .15s;
}

input:focus, select:focus, textarea:focus { border-color: var(--accent); }

textarea { resize: vertical; min-height: 80px; }

.field { margin-bottom: 2px; }
.field label { margin-bottom: 4px; }

/* ── BUTTONS ─────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s;
  text-decoration: none;
}

.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn:not(:disabled):hover { opacity: .87; }

.btn-primary   { background: var(--navy);   color: var(--white); }
.btn-accent    { background: var(--accent); color: var(--white); }
.btn-ghost     { background: transparent;   color: var(--navy);  border: 1.5px solid var(--border); }
.btn-danger    { background: var(--red);    color: var(--white); }
.btn-sm        { padding: 6px 12px; font-size: 13px; }
.btn-full      { width: 100%; justify-content: center; }

.btn-compose {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px 14px 8px;
  padding: 12px 18px;
  background: white;
  color: var(--navy);
  border: none;
  border-radius: 24px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
  transition: box-shadow .15s, background .15s;
  width: calc(100% - 28px);
}
.btn-compose:hover { background: #eef2fb; box-shadow: 0 4px 14px rgba(0,0,0,.3); }

/* ── LAYOUT ──────────────────────────────────────────────────────────────────── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 220px;
  background: var(--navy);
  color: var(--white);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 18px 16px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.sidebar-logo svg {
  width: 34px;
  height: 34px;
  background: rgba(255,255,255,.15);
  border-radius: 8px;
  padding: 5px;
  flex-shrink: 0;
}

.sidebar-logo span { font-size: 16px; font-weight: 700; }

.sidebar-org {
  padding: 8px 18px 4px;
  font-size: 12px;
  color: rgba(255,255,255,.5);
  text-transform: uppercase;
  letter-spacing: .5px;
}

nav { flex: 1; padding: 8px 0; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  font-size: 14px;
  color: rgba(255,255,255,.75);
  cursor: pointer;
  border-radius: 0;
  transition: background .12s, color .12s;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item:hover      { background: rgba(255,255,255,.08); color: var(--white); }
.nav-item.active     { background: rgba(255,255,255,.15); color: var(--white); }
.nav-item .badge {
  margin-left: auto;
  background: var(--accent);
  color: var(--white);
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 10px;
  min-width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 12px 18px;
  border-top: 1px solid rgba(255,255,255,.12);
  font-size: 13px;
  color: rgba(255,255,255,.6);
}

.sidebar-footer .username { font-weight: 600; color: var(--white); }

/* Main */
.main-area {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.main-header {
  padding: 18px 28px 14px;
  border-bottom: 1.5px solid var(--border);
  background: var(--white);
  display: flex;
  align-items: center;
  gap: 12px;
}

.main-header h1 { font-size: 20px; color: var(--navy); flex: 1; }

.main-content { padding: 24px 28px; flex: 1; }

/* ── CARDS ───────────────────────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  margin-bottom: 10px;
  overflow: hidden;
}

.card-header {
  padding: 14px 18px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body { padding: 0 18px 14px; }

.msg-type {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  padding: 3px 8px;
  border-radius: 4px;
}

.msg-type.brief       { background: #e8f4fd; color: #1a6ea8; }
.msg-type.einschreiben { background: #fef3e2; color: #9a5800; }
.msg-type.rueckschein  { background: #e8fdf2; color: #156b3a; }

.msg-subject { font-size: 16px; font-weight: 600; flex: 1; color: var(--text); }
.msg-meta    { font-size: 13px; color: var(--gray); margin-bottom: 8px; }
.msg-body    { font-size: 14px; line-height: 1.55; white-space: pre-wrap; }

.status-pill {
  display: inline-block;
  font-size: 12px;
  padding: 3px 9px;
  border-radius: 20px;
  margin-right: 4px;
}

.pill-ok  { background: #e8fdf2; color: #156b3a; }
.pill-wait { background: var(--light); color: var(--gray); }

/* ── MODAL ───────────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}

.modal {
  background: var(--white);
  border-radius: var(--radius);
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 8px 40px rgba(0,0,0,.2);
}

.modal-head {
  padding: 18px 22px 14px;
  border-bottom: 1.5px solid var(--border);
  display: flex;
  align-items: center;
}

.modal-head h2 { flex: 1; font-size: 18px; color: var(--navy); }
.modal-body    { padding: 22px; }
.modal-foot    { padding: 14px 22px; border-top: 1.5px solid var(--border); display: flex; gap: 8px; justify-content: flex-end; }

/* ── RECIPIENT TAG LIST ───────────────────────────────────────────────────────── */
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.tag {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 10px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.tag button { background: none; border: none; cursor: pointer; color: var(--gray); font-size: 14px; line-height: 1; padding: 0; }

/* ── EMPTY STATE ─────────────────────────────────────────────────────────────── */
.empty { text-align: center; padding: 60px 20px; color: var(--gray); }
.empty p { font-size: 15px; }

/* ── ALERT ───────────────────────────────────────────────────────────────────── */
.alert {
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 14px;
}
.alert-error { background: #fdecea; color: var(--red); }
.alert-ok    { background: #e8fdf2; color: #156b3a; }

/* ── TABLE ───────────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; padding: 10px 14px; background: var(--light); font-size: 12px; text-transform: uppercase; color: var(--gray); letter-spacing: .4px; }
td { padding: 12px 14px; border-top: 1px solid var(--border); }

/* ── MOBILE ──────────────────────────────────────────────────────────────────── */
@media (max-width: 680px) {
  .sidebar { display: none; }
  .main-content { padding: 16px; }
  .main-header  { padding: 14px 16px; }
}