/* Dunkles, modernes UI - Globales Stylesheet */
:root{
  --bg-0:#0a0f1a; 
  --bg-1:#0b1220;
  --card:#0f172a; 
  --border:rgba(255,255,255,0.08);
  --text:#e5e7eb; 
  --muted:#94a3b8;
  --primary:#3b82f6; 
  --primary-2:#2563eb;
  --danger:#ef4444; 
  --danger-2:#dc2626;
  --shadow:0 10px 30px rgba(0,0,0,0.4);
  --text-white:#ffffff;
  --text-danger-light:#fecaca;
  --text-primary-light:#93c5fd;
  --text-success-light:#86efac;
  --bg-input:#0b1324;
  --bg-table:#0c1426;
  --text-heading:#ffffff;
  --text-table-header:#c7d2fe;
  --bg-table-header:rgba(255,255,255,0.04);
  --bg-table-row-even:rgba(255,255,255,0.02);
  --bg-table-row-hover:rgba(59,130,246,0.08);
  --bg-secondary-btn:rgba(255,255,255,0.05);
  --bg-secondary-btn-hover:rgba(255,255,255,0.08);
  --bg-disabled:rgba(255,255,255,0.03);
  --focus-shadow:rgba(59,130,246,0.25);
  --bg-danger:rgba(239,68,68,0.12);
  --border-danger:rgba(239,68,68,0.25);
  --bg-danger-hover:rgba(239,68,68,0.18);
  --bg-success:rgba(34,197,94,0.15);
  --border-success:rgba(34,197,94,0.4);
  --bg-success-alt:rgba(16,185,129,0.12);
  --border-success-alt:rgba(16,185,129,0.25);
  --bg-primary-light:rgba(59,130,246,0.12);
  --bg-info:rgba(59,130,246,0.1);
  --border-info:rgba(59,130,246,0.3);
  --border-primary:rgba(59,130,246,0.5);
  --bg-warning:rgba(239,68,68,0.1);
  --border-warning:rgba(239,68,68,0.3);
}

/* Light Mode */
:root[data-theme="light"]{
  --bg-0:#f8fafc;
  --bg-1:#f1f5f9;
  --card:#ffffff;
  --border:rgba(0,0,0,0.1);
  --text:#1e293b;
  --muted:#64748b;
  --primary:#3b82f6;
  --primary-2:#2563eb;
  --danger:#ef4444;
  --danger-2:#dc2626;
  --shadow:0 10px 30px rgba(0,0,0,0.1);
  --text-white:#1e293b;
  --text-danger-light:#dc2626;
  --text-primary-light:#2563eb;
  --text-success-light:#16a34a;
  --bg-input:#f1f5f9;
  --bg-table:#fafafa;
  --text-heading:#1e293b;
  --text-table-header:#475569;
  --bg-table-header:rgba(0,0,0,0.04);
  --bg-table-row-even:rgba(0,0,0,0.02);
  --bg-table-row-hover:rgba(59,130,246,0.08);
  --bg-secondary-btn:rgba(0,0,0,0.05);
  --bg-secondary-btn-hover:rgba(0,0,0,0.08);
  --bg-disabled:rgba(0,0,0,0.03);
  --focus-shadow:rgba(59,130,246,0.3);
  --bg-danger:rgba(239,68,68,0.15);
  --border-danger:rgba(239,68,68,0.3);
  --bg-danger-hover:rgba(239,68,68,0.22);
  --bg-success:rgba(34,197,94,0.15);
  --border-success:rgba(34,197,94,0.5);
  --bg-success-alt:rgba(16,185,129,0.15);
  --border-success-alt:rgba(16,185,129,0.3);
  --bg-primary-light:rgba(59,130,246,0.15);
  --bg-info:rgba(59,130,246,0.12);
  --border-info:rgba(59,130,246,0.4);
  --border-primary:rgba(59,130,246,0.6);
  --bg-warning:rgba(239,68,68,0.12);
  --border-warning:rgba(239,68,68,0.4);
}

*{
  box-sizing:border-box;
}

body{
  margin:0;
  color:var(--text);
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;
  background:linear-gradient(180deg,var(--bg-0),var(--bg-1));
  padding:20px;
  min-height:100vh;
}

h1,h2,h3{
  color:var(--text-heading);
}

.container{
  max-width:1200px;
  margin:0 auto;
}

/* Header */
.header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:16px;
}

.header h1{
  margin:0;
  font-size:24px;
  font-weight:700;
  color:var(--text-heading);
}

/* User Info */
.user-info{
  display:flex;
  align-items:center;
  gap:10px;
}

.username{
  font-size:14px;
  color:var(--muted);
}

.logout-btn{
  padding:6px 12px;
  background:var(--bg-danger);
  color:var(--text-danger-light);
  border:1px solid var(--border-danger);
  border-radius:8px;
  text-decoration:none;
  font-size:13px;
  font-weight:600;
}

.logout-btn:hover{
  background:var(--bg-danger-hover);
}

.back-link{
  padding:8px 14px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  color:var(--text-white);
  text-decoration:none;
  border-radius:8px;
  font-weight:600;
  font-size:14px;
}

.back-link:hover{
  filter:brightness(1.05);
}

/* Card */
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:12px;
  box-shadow:var(--shadow);
  padding:16px;
}

.info{
  color:var(--muted);
  font-size:14px;
  margin-bottom:12px;
}

/* Search Box */
.search-box{
  margin-bottom:16px;
  display:flex;
  gap:8px;
  align-items:center;
}

.search-box input{
  flex:1;
  max-width:400px;
  padding:10px;
  border:1px solid var(--border);
  border-radius:8px;
  background:var(--bg-input);
  color:var(--text);
  font-size:14px;
}

.search-box input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(59,130,246,0.25);
}

.search-box button{
  padding:10px 16px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  color:var(--text-white);
  border:0;
  border-radius:8px;
  cursor:pointer;
  font-weight:600;
  font-size:14px;
}

.search-box button:hover{
  filter:brightness(1.05);
}

.search-box .clear-btn{
  background:var(--bg-danger);
  color:var(--text-danger-light);
  border:1px solid var(--border-danger);
}

.search-box .clear-btn:hover{
  background:var(--bg-danger-hover);
}

/* Table */
.table-wrap{
  overflow-x:auto;
  overflow-y:auto;
  border-radius:12px;
  border:1px solid var(--border);
  background:var(--bg-table);
  max-height:70vh;
}

table{
  width:100%;
  border-collapse:collapse;
  min-width:600px;
}

th,td{
  padding:12px 10px;
  border-bottom:1px solid var(--border);
  text-align:left;
  font-size:14px;
  word-wrap:break-word;
  max-width:200px;
  overflow:hidden;
  text-overflow:ellipsis;
}

th{
  background:var(--bg-table-header);
  font-weight:700;
  color:var(--text-table-header);
  position:sticky;
  top:0;
  z-index:10;
}

tbody tr:nth-child(even){
  background:var(--bg-table-row-even);
}

tbody tr:hover{
  background:var(--bg-table-row-hover);
}

/* Actions */
.actions{
  display:flex;
  gap:6px;
  align-items:center;
  flex-wrap:wrap;
}

.action-btn{
  display:inline-flex;
  align-items:center;
  gap:4px;
  padding:6px 10px;
  border:1px solid;
  text-decoration:none;
  border-radius:6px;
  font-weight:600;
  font-size:12px;
  white-space:nowrap;
  min-width:fit-content;
}

.edit-btn{
  background:transparent;
  border-color:var(--border-primary);
  color:var(--text-primary-light);
}

.edit-btn:hover{
  background:var(--bg-primary-light);
}

.delete-btn{
  background:transparent;
  border-color:var(--border-danger);
  color:var(--text-danger-light);
}

.delete-btn:hover{
  background:var(--bg-danger);
}

/* Empty State */
.empty{
  padding:20px;
  text-align:center;
  color:var(--muted);
}

.no-search{
  padding:40px 20px;
  text-align:center;
  color:var(--muted);
}

.no-search h2{
  margin:0 0 10px 0;
  font-size:20px;
  color:var(--text);
}

/* Form Elements */
.form-group{
  margin-bottom:18px;
}

label{
  display:block;
  margin-bottom:6px;
  font-weight:600;
  font-size:14px;
  color:var(--muted);
}

label .required{
  color:var(--danger);
  margin-left:2px;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"]{
  width:100%;
  padding:12px;
  border:1px solid var(--border);
  border-radius:8px;
  background:var(--bg-input);
  color:var(--text);
  font-size:14px;
}

input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px var(--focus-shadow);
}

input:disabled{
  background:var(--bg-disabled);
  color:var(--muted);
  cursor:not-allowed;
}

input[type="date"]::-webkit-calendar-picker-indicator{
  filter:invert(1);
  cursor:pointer;
}

:root[data-theme="light"] input[type="date"]::-webkit-calendar-picker-indicator{
  filter:invert(0);
}

/* Buttons */
.button-group{
  display:flex;
  gap:12px;
  margin-top:24px;
}

.btn{
  flex:1;
  padding:12px 20px;
  border:0;
  border-radius:8px;
  font-weight:600;
  font-size:14px;
  cursor:pointer;
  text-decoration:none;
  text-align:center;
  display:inline-block;
}

.btn-primary{
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  color:var(--text-white);
}

.btn-primary:hover{
  filter:brightness(1.1);
}

.btn-secondary{
  background:var(--bg-secondary-btn);
  color:var(--text);
  border:1px solid var(--border);
}

.btn-secondary:hover{
  background:var(--bg-secondary-btn-hover);
}

.btn-delete{
  background:linear-gradient(90deg,var(--danger),var(--danger-2));
  color:var(--text-white);
}

.btn-delete:hover{
  filter:brightness(1.1);
}

.btn-cancel{
  background:var(--bg-secondary-btn);
  color:var(--text);
  border:1px solid var(--border);
}

.btn-cancel:hover{
  background:var(--bg-secondary-btn-hover);
}

/* Messages */
.success{
  background:var(--bg-success);
  border:1px solid var(--border-success);
  color:var(--text-success-light);
  padding:12px;
  border-radius:8px;
  margin-bottom:16px;
}

.error{
  background:var(--bg-danger);
  border:1px solid var(--border-danger);
  color:var(--text-danger-light);
  padding:12px;
  border-radius:8px;
  margin-bottom:16px;
}

.msg{
  padding:10px 12px;
  border-radius:8px;
  margin:8px 0;
  font-size:14px;
  border:1px solid var(--border);
  background:var(--bg-disabled);
}

.err{
  background:var(--bg-danger);
  border-color:var(--border-danger);
  color:var(--text-danger-light);
}

.ok{
  background:var(--bg-success-alt);
  border-color:var(--border-success-alt);
  color:var(--text-success-light);
}

.info-box{
  background:var(--bg-info);
  border:1px solid var(--border-info);
  border-radius:8px;
  padding:12px;
  margin-bottom:20px;
  font-size:14px;
  color:var(--muted);
}

.warning-box{
  background:var(--bg-warning);
  border:2px solid var(--border-warning);
  border-radius:8px;
  padding:16px;
  margin-bottom:20px;
}

.warning-box h2{
  margin:0 0 12px 0;
  font-size:18px;
  color:var(--text-danger-light);
}

/* Info Table */
.info-table{
  width:100%;
  margin:16px 0;
  table-layout:fixed;
}

.info-table tr{
  border-bottom:1px solid var(--border);
}

.info-table td{
  padding:10px 0;
  word-wrap:break-word;
  overflow-wrap:break-word;
}

.info-table td:first-child{
  color:var(--muted);
  font-weight:600;
  width:40%;
}

.info-table td:last-child{
  color:var(--text);
  word-break:break-all;
}

/* Login Specific */
.login-container{
  max-width:420px;
  margin:80px auto 0;
}

.login-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:12px;
  box-shadow:var(--shadow);
  padding:32px;
}

.login-header{
  text-align:center;
  margin-bottom:28px;
}

.login-header h1{
  margin:0 0 8px 0;
  font-size:28px;
  font-weight:700;
  color:var(--text-heading);
}

.login-header p{
  margin:0;
  color:var(--muted);
  font-size:14px;
}

.login-form .form-group{
  margin-bottom:16px;
}

.login-form .btn-primary{
  width:100%;
  margin-top:8px;
}

/* Theme Toggle Button */
.theme-toggle{
  position:fixed;
  bottom:20px;
  right:20px;
  width:50px;
  height:50px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  box-shadow:var(--shadow);
  font-size:24px;
  transition:all 0.3s ease;
  z-index:999;
}

.theme-toggle:hover{
  transform:scale(1.1);
  box-shadow:0 12px 35px rgba(0,0,0,0.3);
}

.theme-toggle:active{
  transform:scale(0.95);
}

:root[data-theme="light"] .theme-toggle{
  box-shadow:0 10px 30px rgba(0,0,0,0.15);
}

/* Media Queries */
@media(max-width:780px){
  th,td{
    padding:10px 8px;
    font-size:13px;
  }
  
  .header{
    flex-direction:column;
    align-items:flex-start;
    gap:12px;
  }
  
  .search-box{
    flex-direction:column;
  }
  
  .search-box input{
    max-width:100%;
  }
  
  .theme-toggle{
    width:45px;
    height:45px;
    bottom:15px;
    right:15px;
    font-size:20px;
  }
}