@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap");

:root {
  --font-family: "Inter", sans-serif;
  --primary-color: #3b82f6;
  --primary-light: #60a5fa;
  --primary-dark: #1e40af;
  --success-color: #10b981;
  --success-dark: #059669;
  --background-color: #f3f4f6;
  --card-background: #ffffff;
  --text-color: #1f2937;
  --text-muted: #6b7280;
  --white: #ffffff;
  --danger: #ef4444;
  --warning: #f59e0b;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --transition: all 0.3s ease;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--background-color);
  color: var(--text-color);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

.otp-container {
  width: 100%;
  max-width: 800px;
  animation: fadeIn 0.5s ease-out;
}

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

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding: 1rem;
  background: var(--card-background);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.logo-image {
  height: 2.5rem;
  width: auto;
}

.header h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

.back-to-login {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.back-to-login:hover {
  color: var(--primary-dark);
}

.back-to-login i {
  font-size: 0.75rem;
}

.content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--card-background);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: var(--box-shadow);
}

.card-small {
  grid-column: 1 / -1;
  text-align: center;
  padding: 0.75rem;
  max-width: 200px;
  margin: 0 auto;
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
  border: 1px solid rgba(96, 165, 250, 0.2);
}

.new-otp-card {
  background: linear-gradient(135deg, #b91c1c 0%, #dc2626 100%);
  border: 1px solid rgba(252, 165, 165, 0.2);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(220, 38, 38, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(220, 38, 38, 0);
  }
}

.card h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.form-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.input-group {
  position: relative;
}

.input-group input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  background-color: var(--background-color);
  border: 1px solid #e5e7eb;
  border-radius: var(--border-radius);
  font-size: 1rem;
  color: var(--text-color);
  outline: none;
  transition: var(--transition);
}

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

.input-group input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}

.input-group i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1rem;
  transition: var(--transition);
}

.input-group input:focus + i {
  color: var(--primary-light);
}

.btn-primary,
.btn-success,
.btn-new-otp {
  width: 100%;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 500;
  color: var(--white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition);
}

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

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

.btn-new-otp {
  background: var(--white);
  color: var(--danger);
  font-weight: 600;
}

.btn-disabled {
  background: #9ca3af;
  cursor: not-allowed;
  opacity: 0.7;
}

.btn-primary:hover,
.btn-success:hover,
.btn-new-otp:hover {
  filter: brightness(110%);
  transform: translateY(-2px);
}

.btn-disabled:hover {
  filter: none;
  transform: none;
}

.alert {
  grid-column: 1 / -1;
  padding: 0.75rem;
  border-radius: var(--border-radius);
  margin-top: 1.5rem;
  font-size: 0.875rem;
  text-align: center;
}

.alert-success {
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.alert-danger {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.disabled-link {
  pointer-events: none;
  opacity: 0.5;
  cursor: not-allowed;
}

.resend-link a,
.new-otp-link button {
  color: var(--white);
  text-decoration: none;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
  background: transparent;
  border: none;
  cursor: pointer;
}

.resend-link a:hover {
  color: var(--primary-light);
}

.timer-container {
  grid-column: 1 / -1;
  margin: 1rem auto;
  padding: 0.75rem 1.5rem;
  background-color: #f0f9ff;
  border-radius: var(--border-radius);
  border: 1px solid #bae6fd;
  max-width: 300px;
  box-shadow: var(--box-shadow);
}

.timer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  color: var(--text-color);
}

.timer i {
  color: var(--primary-color);
}

.timer-warning {
  color: var(--warning);
  font-weight: 600;
}

.timer-expired {
  color: var(--danger);
  font-weight: 700;
}

.otp-expired-message {
  margin-top: 1rem;
  padding: 0.75rem;
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  text-align: center;
}

.timer-message {
  grid-column: 1 / -1;
  margin: 0.5rem auto 1.5rem;
  padding: 0.75rem 1.5rem;
  background-color: #ecfdf5;
  border-radius: var(--border-radius);
  border: 1px solid #a7f3d0;
  max-width: 400px;
  text-align: center;
  font-size: 0.95rem;
  color: #065f46;
  animation: fadeIn 0.5s ease-out;
}

@media (max-width: 768px) {
  .otp-container {
    max-width: 90%;
    padding: 1rem;
  }

  .header {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .back-to-login {
    margin-top: 0.5rem;
  }

  .content {
    grid-template-columns: 1fr;
  }
}