/* ================================ */
/* Design-Variablen (Light & Dark)  */
/* ================================ */
:root {
  /* Light Mode (Standard) */
  --bg: hsl(35, 15.8%, 85.1%);
  --text: #333;
  --header-bg: #fff;
  --header-border: #4caf50;
  --filter-border: #4caf50;

  --node-bg: #fff;         /* Karten-/Box-Hintergrund */
  --node-hover: #f0ebe3;
  --accent: #4caf50;

  --btn-bg: #d49e58;
  --btn-text: #fff;

  --search-bg: #f5f0e8;
  --progress-bg: #ccc;
  --gif-shadow: #388e3c;

  /* Login-spezifische Variablen */
  --panel-bg: var(--node-bg);
  --panel-shadow: rgba(0, 0, 0, 0.15);

  --input-bg: var(--search-bg);
  --input-bg-focus: #efe7da;
  --input-text: var(--text);

  --error-bg: #ffe5e5;
  --error-text: #b00020;
}

/* Dark Mode Overrides */
html.dark-mode {
  --bg: rgb(36, 36, 36);
  --text: #fff;
  --header-bg: #121212;
  --header-border: limegreen;
  --filter-border: limegreen;

  --node-bg: #1e1e1e;
  --node-hover: #2a2a2a;
  --accent: limegreen;

  --btn-bg: #444;
  --btn-text: #fff;

  --search-bg: #2a2a2a;
  --progress-bg: #333;
  --gif-shadow: rgba(0,255,0,0.2);

  /* Login-spezifisch */
  --panel-bg: #1e1e1e;
  --panel-shadow: rgba(0, 0, 0, 0.5);

  --input-bg: #2e2e2e;
  --input-bg-focus: #3a3a3a;
  --input-text: #fff;

  --error-bg: #2a0000;
  --error-text: #ff4c4c;
}

/* ================================ */
/* Global                           */
/* ================================ */
* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh; /* besser für mobile mit Tastatur */
  margin: 0;
  padding: 10px;
  transition: background-color .25s ease, color .25s ease;
}

/* ================================ */
/* Login Box                        */
/* ================================ */
.login-box {
  background: var(--panel-bg);
  padding: 30px 25px;
  border-radius: 20px;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 8px 25px var(--panel-shadow);
  text-align: center;
  transition: transform .2s ease, background-color .25s ease, box-shadow .25s ease;
}

.login-box h2 {
  margin-bottom: 20px;
  font-size: 24px;
  color: var(--accent);
}

/* Inputs */
input {
  width: 100%;
  padding: 12px;
  margin: 0 0 15px 0; /* nur unten Abstand */
  border: none;
  border-radius: 8px;
  background-color: var(--input-bg);
  color: var(--input-text);
  font-size: 16px;
  outline: none;
  transition: background-color 0.2s ease;
}
input:focus {
  background-color: var(--input-bg-focus);
}

/* Button */
button {
  width: 100%;
  padding: 12px;
  margin: 0;
  border: none;
  border-radius: 8px;
  background-color: var(--btn-bg);
  color: var(--btn-text);
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: filter 0.2s ease, transform 0.06s ease;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}
button:hover { filter: brightness(1.05); }
button:active { transform: translateY(1px); }

/* Fehlermeldung */
.error-message {
  color: var(--error-text);
  background-color: var(--error-bg);
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 15px;
  font-weight: bold;
}

/* Kleine Qualitätsdetails */
.login-box img { display: block; margin: 0 auto 20px; }