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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background-color: #0a2a3f;
  background-image: 
    radial-gradient(circle at 20px 20px, rgba(255,255,255,0.03) 2px, transparent 2px),
    radial-gradient(circle at 40px 40px, rgba(255,255,255,0.02) 3px, transparent 3px),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 40px,
      rgba(255,255,255,0.01) 40px,
      rgba(255,255,255,0.01) 41px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 40px,
      rgba(255,255,255,0.01) 40px,
      rgba(255,255,255,0.01) 41px
    );
  background-size: 60px 60px, 60px 60px, 40px 40px, 40px 40px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  line-height: 1.6;
  color: #1f2937;
}

/* Container */
.container {
  width: 100%;
  max-width: 440px;
}

/* Card */
.card {
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15), 0 4px 16px rgba(0, 0, 0, 0.08);
  padding: 36px 28px;
  animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Card Header */
.card-header {
  text-align: center;
  margin-bottom: 28px;
}

.card-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 4px;
}

.card-header p {
  font-size: 0.9rem;
  color: #6b7280;
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: 6px;
}

/* Inputs */
input,
select {
  width: 100%;
  padding: 14px 16px;
  font-size: 1rem;
  border: 2px solid #e5e7eb;
  border-radius: 10px;
  background: #f9fafb;
  color: #1f2937;
  transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

input:focus,
select:focus {
  outline: none;
  border-color: #1a6b8a;
  box-shadow: 0 0 0 3px rgba(26, 107, 138, 0.15);
  background: #ffffff;
}

input.error,
select.error {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

input.success {
  border-color: #10b981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Input with prefix */
.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix {
  position: absolute;
  left: 16px;
  font-size: 1rem;
  font-weight: 500;
  color: #374151;
  pointer-events: none;
  z-index: 1;
}

.input-wrapper input {
  padding-left: 62px;
}

/* Select dropdown arrow */
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

/* Error text */
.error-text {
  display: block;
  font-size: 0.8rem;
  color: #ef4444;
  margin-top: 4px;
  min-height: 1.2em;
}

/* Helper text */
.helper-text {
  font-size: 0.8rem;
  color: #6b7280;
  margin-top: 4px;
}

/* Buttons */
.btn {
  width: 100%;
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s, opacity 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: linear-gradient(135deg, #1a6b8a, #0e4f6a);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(14, 79, 106, 0.3);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #0e4f6a, #093d54);
  box-shadow: 0 6px 16px rgba(14, 79, 106, 0.4);
}

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-success:hover:not(:disabled) {
  background: linear-gradient(135deg, #059669, #047857);
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* OTP Section */
.otp-section {
  margin-top: 8px;
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Divider */
.divider {
  display: flex;
  align-items: center;
  margin: 24px 0 20px;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: #e5e7eb;
}

.divider span {
  padding: 0 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Success Message */
.success-message {
  text-align: center;
  padding: 20px 0;
  animation: fadeIn 0.4s ease-out;
}

.success-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #10b981, #059669);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 28px;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.success-message h2 {
  font-size: 1.4rem;
  color: #1f2937;
  margin-bottom: 4px;
}

.success-message p {
  color: #6b7280;
  font-size: 0.9rem;
}

/* Toast notification */
.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: #1f2937;
  color: #ffffff;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.9rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  transition: transform 0.3s ease;
  max-width: 90%;
  text-align: center;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.toast-success {
  background: #059669;
}

.toast.toast-error {
  background: #dc2626;
}

/* Responsive */
@media (max-width: 480px) {
  body {
    padding: 16px;
    align-items: flex-start;
    padding-top: 40px;
  }

  .card {
    padding: 28px 20px;
    border-radius: 12px;
  }

  .card-header h1 {
    font-size: 1.5rem;
  }

  input,
  select {
    padding: 12px 14px;
  }

  .input-wrapper input {
    padding-left: 58px;
  }

  .btn {
    padding: 12px 20px;
  }
}