/* Shared theme + toggle styles */
.btn-ghost {
    background: transparent;
    color: #666;
    border: 2px solid rgba(0, 0, 0, 0.05);
    padding: 0.6rem 0.9rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-ghost:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

.theme-toggle-bar {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 0.75rem;
}

.quiz-status {
    margin-top: 0.75rem;
    color: #666;
    font-weight: 600;
}

/* Dark Theme */
body.theme-dark {
    background: #0f172a;
    color: #e2e8f0;
}

.theme-dark .header,
.theme-dark .footer {
    background: #111827;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.theme-dark .logo h1 {
    color: #c7d2fe;
}

.theme-dark .nav-link {
    color: #cbd5e1;
}

.theme-dark .nav-link:hover,
.theme-dark .nav-link.active {
    color: #a5b4fc;
    background: rgba(165, 180, 252, 0.12);
}

.theme-dark .btn-ghost {
    color: #cbd5e1;
    border-color: rgba(255, 255, 255, 0.1);
}

.theme-dark .btn-ghost:hover {
    background: rgba(165, 180, 252, 0.12);
    color: #a5b4fc;
}

.theme-dark .btn-outline {
    color: #cbd5e1;
    border-color: #a5b4fc;
}

.theme-dark .btn-outline:hover,
.theme-dark .btn-primary:hover {
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.45);
}

.theme-dark .btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.theme-dark .btn-secondary {
    background: #334155;
    color: #e2e8f0;
    border-color: transparent;
}

.theme-dark .btn {
    color: inherit;
}

.theme-dark .quiz-card,
.theme-dark .results-card,
.theme-dark .stat-card,
.theme-dark .action-card,
.theme-dark .feature-card,
.theme-dark .request-card,
.theme-dark .mentor-card,
.theme-dark .profile-card,
.theme-dark .content-card,
.theme-dark .contact-card,
.theme-dark .login-card,
.theme-dark .register-card,
.theme-dark .editor-card,
.theme-dark .notes-list,
.theme-dark .note-card,
.theme-dark .shared-notes-list,
.theme-dark .mentor-header,
.theme-dark .mentor-request,
.theme-dark .mentor-status,
.theme-dark .available-mentors,
.theme-dark .recent-activity,
.theme-dark .welcome,
.theme-dark .dashboard,
.theme-dark .quick-actions {
    background: #111827;
    color: #e2e8f0;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.theme-dark .hero {
    background: linear-gradient(135deg, #0f172a 0%, #111827 100%);
    color: #e2e8f0;
}

.theme-dark .features {
    background: #0f172a;
    color: #e2e8f0;
}

.theme-dark .feature-card,
.theme-dark .stat-card,
.theme-dark .action-card,
.theme-dark .mentor-card,
.theme-dark .note-card,
.theme-dark .profile-card,
.theme-dark .content-card,
.theme-dark .request-card,
.theme-dark .editor-card,
.theme-dark .results-card {
    border: 1px solid #1f2937;
}

.theme-dark input,
.theme-dark textarea,
.theme-dark select {
    background: #0f172a;
    border: 2px solid #1f2937;
    color: #e2e8f0;
}

.theme-dark input::placeholder,
.theme-dark textarea::placeholder {
    color: #94a3b8;
}

.theme-dark input:focus,
.theme-dark textarea:focus,
.theme-dark select:focus {
    border-color: #a5b4fc;
    outline: none;
}

.theme-dark .progress-bar {
    background: #1f2937;
}

.theme-dark .result-label,
.theme-dark .stat-label,
.theme-dark .progress-text,
.theme-dark .quiz-header p,
.theme-dark .quiz-status,
.theme-dark .footer,
.theme-dark .hero p {
    color: #cbd5e1;
}

.theme-dark .modal,
.theme-dark .modal-content {
    background: rgba(15, 23, 42, 0.9);
    color: #e2e8f0;
}