:root {
  --bg: #f9fafb;
  --card: #ffffff;
  --text: #111827;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --primary: #2563eb;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.container {
  width: 100%;
  max-width: 380px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
}

.card-header {
  text-align: center;
  margin-bottom: 24px;
}

.logo {
  height: 100px;
  max-width: 100%;
  width: auto;
  object-fit: contain;
  margin: 0 auto 12px auto;
  display: block;
}

.title {
  margin: 0 0 6px 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.subtitle {
  margin: 0;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.4;
}

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

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: #374151;
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  background: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text);
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.form-group input::placeholder {
  color: #9ca3af;
}

.btn-submit {
  width: 100%;
  height: 40px;
  background: #0f172a;
  color: #ffffff;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  margin-top: 6px;
  transition: background-color 0.15s ease;
}

.btn-submit:hover {
  background: #1e293b;
}

.btn-submit:active {
  background: #334155;
}

.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 0.6s linear infinite;
  margin-right: 6px;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.form-group.has-error input {
  border-color: #ef4444;
}

.error-text {
  display: none;
  font-size: 12px;
  color: #ef4444;
  margin-top: 4px;
}

.form-group.has-error .error-text {
  display: block;
}

.alert-error {
  display: none;
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: var(--radius);
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
  font-size: 13px;
  line-height: 1.4;
  text-align: left;
}

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(3px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

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

.modal-card {
  background: #ffffff;
  border-radius: 12px;
  max-width: 350px;
  width: 100%;
  padding: 24px 20px;
  text-align: center;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  animation: modalIn 0.2s ease-out;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #ecfdf5;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px auto;
}

.modal-title {
  margin: 0 0 6px 0;
  font-size: 16px;
  font-weight: 600;
  color: #111827;
}

.modal-desc {
  margin: 0 0 16px 0;
  font-size: 13px;
  color: #6b7280;
  line-height: 1.4;
}

.ticket-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 18px;
  text-align: left;
}

.ticket-label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: #64748b;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ticket-code-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.ticket-code {
  font-family: monospace;
  font-size: 15px;
  font-weight: 700;
  color: #0f172a;
  letter-spacing: 0.05em;
}

.btn-copy {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  color: #334155;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-copy:hover {
  background: #f1f5f9;
  border-color: #94a3b8;
}

.btn-modal-close {
  width: 100%;
  height: 38px;
  background: #0f172a;
  color: #ffffff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.btn-modal-close:hover {
  background: #1e293b;
}

@media (max-width: 480px) {
  body {
    align-items: flex-start;
    padding-top: 24px;
  }

  .card {
    padding: 22px 18px;
    border-radius: 10px;
  }
}