/* ==========================================================================
   Mail Tool — dunkles Design "Cyan-Mint"
   Signalfarben (gruen = versendet, rot = Fehler) bleiben bewusst erhalten,
   damit der Status auf einen Blick erkennbar bleibt.
   ========================================================================== */

:root {
  --bg: #07090b;
  --bg-elevated: #0b0f12;
  --card: #0d1316;
  --card-hover: #101a1e;
  --border: #1a2b31;
  --border-strong: #243d45;

  --text: #e6f1f3;
  --muted: #7d949b;
  --faint: #5f747b;

  --accent: #2dd4bf;
  --accent-bright: #5eead4;
  --accent-dark: #14b8a6;
  --accent-soft: #07242b;
  --glow: rgba(45, 212, 191, .45);

  /* Zweite Akzentfarbe fuer Farbverlaeufe (Ueberschriften, Highlights) —
     nur dekorativ, die Signalfarben oben bleiben fuer Status reserviert. */
  --accent-2: #a78bfa;
  --glow-2: rgba(167, 139, 250, .35);

  --success: #4ade80;
  --success-soft: #08251a;
  --warning: #fbbf24;
  --warning-soft: #2a1f05;
  --error: #f87171;
  --error-soft: #2c1114;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background:
    radial-gradient(900px 500px at 6% -6%, rgba(45, 212, 191, .07), transparent 60%),
    radial-gradient(900px 600px at 96% 106%, rgba(167, 139, 250, .06), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

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

/* ------------------------------------------------------------- Sidebar --- */

nav.sidebar {
  width: 220px;
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  padding: 24px 14px;
  flex-shrink: 0;
}

nav.sidebar h1 {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 22px 8px;
  color: #fff;
  letter-spacing: -.2px;
}

nav.sidebar a {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 3px;
  transition: background .15s, color .15s;
}

nav.sidebar a:hover { background: var(--card-hover); color: var(--text); }

nav.sidebar a.active {
  background: var(--accent-soft);
  color: var(--accent-bright);
  animation: navGlow 2.6s ease-in-out infinite;
}

@keyframes navGlow {
  0%, 100% { box-shadow: inset 2px 0 0 var(--accent), 0 0 10px -4px var(--glow); }
  50%      { box-shadow: inset 2px 0 0 var(--accent), 0 0 20px -2px var(--glow); }
}

main { flex: 1; padding: 32px 40px; max-width: 1040px; }

h2 {
  margin-top: 0;
  font-weight: 700;
  letter-spacing: -.3px;
  display: inline-block;
  background: linear-gradient(100deg, var(--accent-bright) 10%, var(--accent-2) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
h3 { font-weight: 600; }
a { color: var(--accent); }

/* --------------------------------------------------------------- Karten --- */

.card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 24px;
  margin-bottom: 18px;
  overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0;
  transition: opacity .18s ease;
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
  box-shadow: 0 10px 30px -12px rgba(0, 0, 0, .5), 0 0 24px -6px var(--glow);
}
.card:hover::before { opacity: 1; }

/* -------------------------------------------------------------- Tabellen --- */

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 11px 8px; border-bottom: 1px solid var(--border); }
th {
  color: var(--faint);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
tr:last-child td { border-bottom: none; }
tbody tr:hover td, table tr:hover td { background: rgba(45, 212, 191, .03); }

/* -------------------------------------------------------------- Formular --- */

input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], input[type=datetime-local], textarea, select {
  width: 100%;
  padding: 10px 12px;
  background: #0a1013;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text);
  margin-bottom: 14px;
  font-family: inherit;
  transition: border-color .15s, box-shadow .15s;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, .12);
}

input::placeholder, textarea::placeholder { color: #4b5f66; }

input[type=checkbox], input[type=radio] { accent-color: var(--accent); }

textarea { min-height: 220px; font-family: ui-monospace, monospace; font-size: 13px; }

label { font-size: 13px; font-weight: 600; color: var(--muted); display: block; margin-bottom: 5px; }

/* --------------------------------------------------------------- Buttons --- */

.btn {
  display: inline-block;
  background: var(--accent-dark);
  color: #04211f;
  border: none;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 0 14px rgba(45, 212, 191, .28);
  transition: background .15s, box-shadow .18s ease, transform .15s ease;
}
.btn:hover {
  background: var(--accent);
  box-shadow: 0 0 26px var(--glow), 0 4px 14px -4px rgba(0, 0, 0, .5);
  transform: translateY(-1px);
}
.btn:active { transform: translateY(1px); box-shadow: 0 0 12px var(--glow); }

.btn.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
  box-shadow: none;
}
.btn.secondary:hover { background: var(--card-hover); border-color: var(--accent); color: var(--accent-bright); }

.btn.danger { background: var(--error); color: #2c0b0d; box-shadow: 0 0 14px rgba(248, 113, 113, .25); }
.btn.danger:hover { background: #fca5a5; }

/* ------------------------------------------------------- Tags und Badges --- */

.tag {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-bright);
  border: 1px solid #123c44;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 12px;
  margin-right: 4px;
}

.badge { padding: 3px 11px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.draft     { background: #16202400; border: 1px solid var(--border-strong); color: var(--muted); }
.badge.scheduled { background: var(--accent-soft); color: var(--accent-bright); }
.badge.sending   { background: var(--warning-soft); color: var(--warning); }
.badge.sent      { background: var(--success-soft); color: var(--success); }
.badge.error     { background: var(--error-soft); color: var(--error); }

/* -------------------------------------------------------------- Meldungen --- */

.flash {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
  border: 1px solid transparent;
}
.flash.success { background: var(--success-soft); color: var(--success); border-color: #14532d; }
.flash.error   { background: var(--error-soft);   color: var(--error);   border-color: #4c1d24; }

/* ------------------------------------------------------------ Kennzahlen --- */

.stat-row { display: flex; gap: 14px; margin-bottom: 20px; flex-wrap: wrap; }
.stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  flex: 1;
  min-width: 120px;
}
.stat {
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.stat:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
  box-shadow: 0 10px 26px -14px rgba(0, 0, 0, .5), 0 0 20px -8px var(--glow);
}
.stat .num {
  font-size: 26px;
  font-weight: 700;
  color: var(--accent-bright);
  letter-spacing: -.5px;
  text-shadow: 0 0 22px rgba(94, 234, 212, .35);
}
.stat .lbl { font-size: 11px; color: var(--faint); text-transform: uppercase; letter-spacing: .05em; margin-top: 2px; }

/* ----------------------------------------------------------------- Login --- */

.login-wrap { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-box { width: 340px; }
.login-box .card { box-shadow: 0 0 60px rgba(45, 212, 191, .07); }

.hint { font-size: 12px; color: var(--faint); margin-top: -8px; margin-bottom: 14px; line-height: 1.55; }
.hint code { background: #0a1013; border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; }

hr { border: none; border-top: 1px solid var(--border); }

/* --------------------------------------------------------------- Editor ---
   Der Schreibbereich bleibt bewusst HELL: Er zeigt, wie die Mail beim
   Empfaenger aussieht. Waere er dunkel, wuerde man helle Schrift waehlen,
   die im echten Postfach auf weissem Grund unlesbar ist. */

.mail-editor { background: #fff; border-radius: 0 0 8px 8px; }
.mail-editor .ql-editor {
  min-height: 280px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  color: #1f2330;
}
.mail-editor .ql-editor.ql-blank::before { color: #9aa0ab; }

/* Bilder duerfen den Editor nie sprengen */
.mail-editor .ql-editor img {
  max-width: 100%;
  height: auto;
  display: block;
  cursor: pointer;
}
.mail-editor .ql-editor img.img-selected {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Leiste zum Aendern der Bildgroesse */
.img-size-bar {
  display: flex;
  gap: 6px;
  align-items: center;
  padding: 8px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 8px 8px;
}
.img-size-bar::before {
  content: "Bildgroesse:";
  font-size: 12px;
  color: var(--faint);
  margin-right: 2px;
}
.img-size-bar button {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
}
.img-size-bar button:hover { border-color: var(--accent); color: var(--accent-bright); }
.img-size-bar button.active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-bright);
}
.img-size-bar button.danger { margin-left: auto; border-color: #4c1d24; color: var(--error); }
.img-size-bar button.danger:hover { background: var(--error-soft); border-color: var(--error); color: var(--error); }

/* Bilder in der Mail-Vorschau ebenfalls begrenzen */
.mail-preview img { max-width: 100%; height: auto; }

.ql-toolbar.ql-snow {
  border-radius: 8px 8px 0 0;
  background: var(--bg-elevated);
  border-color: var(--border) !important;
}
.ql-container.ql-snow { border-color: var(--border) !important; }

.ql-snow .ql-stroke { stroke: var(--muted); }
.ql-snow .ql-fill { fill: var(--muted); }
.ql-snow .ql-picker { color: var(--muted); }
.ql-snow .ql-picker-options { background: var(--card); border-color: var(--border) !important; }
.ql-snow.ql-toolbar button:hover .ql-stroke,
.ql-snow.ql-toolbar button.ql-active .ql-stroke { stroke: var(--accent); }
.ql-snow.ql-toolbar button:hover .ql-fill,
.ql-snow.ql-toolbar button.ql-active .ql-fill { fill: var(--accent); }
.ql-snow.ql-toolbar .ql-picker-label:hover,
.ql-snow.ql-toolbar .ql-picker-item:hover { color: var(--accent); }

/* Vorschau der fertigen Mail — ebenfalls hell, aus demselben Grund. */
.mail-preview {
  background: #fff;
  color: #1f2330;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
}
.mail-preview a { color: #2563eb; }

@media (max-width: 760px) {
  .layout { flex-direction: column; }
  nav.sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); }
  main { padding: 20px 16px; }
}