/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #64748b;
  --success: #22c55e;
  --error: #ef4444;
  --bg: #0f172a;
  --bg-card: #1e293b;
  --bg-hover: #334155;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --border: #334155;
  --radius: 12px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, var(--bg) 0%, #1e293b 100%);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* Navigation */
.nav {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  transition: all 0.2s;
}

.nav-link:hover {
  color: var(--text);
  background: var(--bg-hover);
}

.nav-link.active {
  color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
}

/* Pages */
.page {
  display: none;
}

.page.active {
  display: block;
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  margin-top: 2rem;
}

h2 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.subtitle {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

/* Forms */
.form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

label {
  font-weight: 500;
  color: var(--text);
}

input[type="text"],
input[type="email"],
input[type="file"],
textarea {
  padding: 0.75rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 1rem;
  transition: border-color 0.2s;
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.help-text {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Buttons */
.btn {
  padding: 0.875rem 1.5rem;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

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

.btn-secondary:hover {
  background: #475569;
}

.button-group {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-content {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--radius);
  max-width: 500px;
  width: 100%;
  text-align: center;
}

.modal-content h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.qr-preview {
  margin: 2rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

#qr-canvas {
  border-radius: var(--radius);
  background: white;
  padding: 1rem;
}

/* Scanner */
#scanner-container {
  margin: 2rem 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg);
}

#qr-reader {
  width: 100%;
}

#qr-reader__dashboard_section_csr {
  display: none !important;
}

.divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 2rem 0;
  color: var(--text-muted);
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border);
}

.divider span {
  padding: 0 1rem;
}

/* Alerts */
.alert {
  padding: 1rem;
  border-radius: var(--radius);
  margin-top: 1rem;
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
}

/* Profile */
.profile-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.profile-photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg);
  border: 3px solid var(--border);
}

.profile-info h2 {
  margin-bottom: 0.25rem;
}

.text-muted {
  color: var(--text-muted);
}

.profile-status {
  margin: 2rem 0;
  padding: 1rem;
  background: var(--bg);
  border-radius: var(--radius);
  text-align: center;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
  border-radius: var(--radius);
  font-weight: 600;
}

/* Responsive */
@media (max-width: 640px) {
  .nav .container {
    flex-direction: column;
    gap: 1rem;
  }

  .button-group {
    flex-direction: column;
  }

  .profile-header {
    flex-direction: column;
    text-align: center;
  }
}