:root {
  --bg-primary: #1a1b2e;
  --bg-secondary: #232540;
  --bg-card: #2a2d4a;
  --bg-input: #1e2038;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0b8;
  --text-muted: #6c6c8a;
  --accent: #5b7dff;
  --accent-hover: #4a6ae8;
  --danger: #ff4757;
  --success: #2ed573;
  --warning: #ffa502;
  --border: #363958;
  --sidebar-width: 250px;
  --header-height: 0px;
}

[data-theme="light"] {
  --bg-primary: #f0f2f5;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-input: #e8eaed;
  --text-primary: #1a1a2e;
  --text-secondary: #555;
  --text-muted: #888;
  --border: #d0d0d0;
  --accent: #4a6ae8;
  --accent-hover: #3b5bd4;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

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

.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
}

.sidebar-header {
  padding: 20px 20px 10px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
}

.sidebar-nav { flex: 1; padding: 10px 0; overflow-y: auto; }

.sidebar-user {
  padding: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-info-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
}

.user-info { display: flex; flex-direction: column; }
.user-name { font-weight: 600; font-size: 14px; }
.user-role { font-size: 12px; color: var(--accent); }

.dropdown { margin-bottom: 4px; }

.dropdown-btn {
  width: 100%;
  padding: 10px 20px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  display: flex;
  align-items: center;
}

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

.dropdown-content { display: block; }

.dropdown-content a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px 8px 40px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: background 0.15s;
}

.dropdown-content a:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 30px 40px;
  min-height: 100vh;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 18px;
  padding: 6px 10px;
  border-radius: 6px;
}

.page-title { font-size: 24px; font-weight: 700; margin-bottom: 24px; }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.stat-value { font-size: 28px; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }
.stat-sub { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 10px 12px; font-size: 12px; text-transform: uppercase; color: var(--text-muted); border-bottom: 1px solid var(--border); }
td { padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
tr:hover { background: var(--bg-input); }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

.badge-open { background: rgba(46, 213, 115, 0.15); color: var(--success); }
.badge-closed { background: rgba(108, 108, 138, 0.15); color: var(--text-muted); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
}

.btn-sm { padding: 4px 8px; font-size: 12px; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.85; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-outline { background: none; border: 1px solid var(--border); color: var(--text-secondary); }
.btn-outline:hover { background: var(--bg-card); color: var(--text-primary); }
.btn-success { background: var(--success); color: #fff; }

.toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px;
}
.filter-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.search-input {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 14px;
  width: 100%;
  max-width: 400px;
}

select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 14px;
}

pre {
  background: var(--bg-input);
  padding: 16px;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.5;
  max-height: 600px;
  overflow-y: auto;
}

/* Login page */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-primary);
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 420px;
}

.login-card h1 { font-size: 22px; margin-bottom: 8px; }
.login-card p { color: var(--text-secondary); font-size: 14px; margin-bottom: 24px; }

.lang-selector {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}

.lang-btn {
  flex: 1;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 14px;
}
.lang-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }

.form-group input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 16px;
  letter-spacing: 4px;
  text-align: center;
}

.btn-login {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}
.btn-login:hover { background: var(--accent-hover); }

.error-msg {
  background: rgba(255, 71, 87, 0.1);
  color: var(--danger);
  padding: 10px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
}

/* Action buttons in tickets */
.action-group { display: flex; gap: 4px; flex-wrap: wrap; }