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

:root {
  --bg: #0f0f0f;
  --card: #1a1a1a;
  --card-hover: #222;
  --border: #333;
  --text: #e0e0e0;
  --text-muted: #888;
  --primary: #6c5ce7;
  --primary-hover: #7c6cf7;
  --success: #00b894;
  --danger: #e74c3c;
  --warning: #fdcb6e;
  --input-bg: #252525;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 40px 20px;
}

.container.wide {
  max-width: 1200px;
}

/* Header */
.header {
  text-align: center;
  margin-bottom: 40px;
}

.header h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.header p {
  color: var(--text-muted);
  font-size: 16px;
}

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 24px;
}

.card h2 {
  font-size: 20px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  font-size: 14px;
  color: var(--text-muted);
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 16px;
  transition: border-color 0.2s;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-group .hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 32px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  text-align: center;
}

.btn-primary {
  background: var(--primary);
  color: white;
  width: 100%;
}

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

.btn-success {
  background: var(--success);
  color: white;
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-small {
  padding: 6px 16px;
  font-size: 13px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Alerts */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
}

.alert-error {
  background: rgba(231, 76, 60, 0.15);
  border: 1px solid rgba(231, 76, 60, 0.3);
  color: #e74c3c;
}

.alert-success {
  background: rgba(0, 184, 148, 0.15);
  border: 1px solid rgba(0, 184, 148, 0.3);
  color: #00b894;
}

/* Progress Steps */
.steps {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
}

.step {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  background: var(--input-bg);
  color: var(--text-muted);
  border: 2px solid var(--border);
}

.step.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.step.done {
  background: var(--success);
  color: white;
  border-color: var(--success);
}

.step-line {
  width: 40px;
  height: 2px;
  background: var(--border);
  align-self: center;
}

/* Test sections */
.test-section {
  margin-bottom: 32px;
}

.test-section h3 {
  font-size: 16px;
  margin-bottom: 12px;
  color: var(--primary);
}

/* Typing test */
.typing-area {
  background: var(--input-bg);
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
  font-size: 16px;
  line-height: 1.8;
  min-height: 120px;
}

.typing-area .correct { color: var(--success); }
.typing-area .incorrect { color: var(--danger); text-decoration: underline; }
.typing-area .pending { color: var(--text-muted); }
.typing-area .current { background: rgba(108, 92, 231, 0.3); border-radius: 2px; }

#typingInput {
  width: 100%;
  padding: 12px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 16px;
}

.timer-bar {
  height: 4px;
  background: var(--primary);
  border-radius: 2px;
  transition: width 0.1s linear;
  margin-bottom: 8px;
}

/* Speed test */
.speed-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}

.speed-box {
  background: var(--input-bg);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}

.speed-box .value {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
}

.speed-box .label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* IQ test */
.iq-question {
  margin-bottom: 24px;
  padding: 20px;
  background: var(--input-bg);
  border-radius: 8px;
}

.iq-question .q-number {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.iq-question .q-text {
  font-size: 16px;
  margin-bottom: 16px;
}

.iq-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.iq-option {
  padding: 10px 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
}

.iq-option:hover {
  border-color: var(--primary);
}

.iq-option.selected {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* Results display */
.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.result-item:last-child { border-bottom: none; }

.result-item .label { color: var(--text-muted); }
.result-item .value { font-weight: 600; }
.result-item .pass { color: var(--success); }
.result-item .fail { color: var(--danger); }

/* Admin Dashboard */
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}

.stat-card .number {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
}

.stat-card .label {
  font-size: 13px;
  color: var(--text-muted);
}

.filters {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

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

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

th {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
}

tr:hover {
  background: var(--card-hover);
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-registered { background: rgba(108, 92, 231, 0.2); color: #6c5ce7; }
.badge-test1_passed { background: rgba(0, 184, 148, 0.2); color: #00b894; }
.badge-test2_passed { background: rgba(0, 184, 148, 0.2); color: #00b894; }
.badge-test3_review { background: rgba(253, 203, 110, 0.2); color: #fdcb6e; }
.badge-test3_passed { background: rgba(0, 184, 148, 0.2); color: #00b894; }
.badge-test4_review { background: rgba(253, 203, 110, 0.2); color: #fdcb6e; }
.badge-approved { background: rgba(0, 184, 148, 0.3); color: #00b894; }
.badge-rejected, .badge-failed_test1, .badge-failed_test2 { background: rgba(231, 76, 60, 0.2); color: #e74c3c; }

.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}

.pagination button {
  padding: 6px 12px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  cursor: pointer;
}

.pagination button.active {
  background: var(--primary);
  border-color: var(--primary);
}

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  z-index: 100;
  align-items: center;
  justify-content: center;
}

.modal-overlay.show { display: flex; }

.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
}

.modal h3 {
  margin-bottom: 20px;
}

.modal .close-btn {
  float: right;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
}

/* Message pages */
.message-page {
  text-align: center;
  padding: 80px 20px;
}

.message-page .icon {
  font-size: 64px;
  margin-bottom: 20px;
}

.message-page h2 {
  margin-bottom: 12px;
}

.message-page p {
  color: var(--text-muted);
  max-width: 400px;
  margin: 0 auto;
}

/* Responsive */
@media (max-width: 768px) {
  .container { padding: 20px 16px; }
  .card { padding: 20px; }
  .iq-options { grid-template-columns: 1fr; }
  .speed-results { grid-template-columns: 1fr; }
  .filters { flex-direction: column; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}