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

:root {
  --blue: #002395;
  --blue-dark: #001a6e;
  --blue-light: #0033cc;
  --red: #ED2939;
  --red-dark: #c41e2a;
  --red-light: #ff3d4f;
  --white: #FFFFFF;
  --gray-50: #f8f9fc;
  --gray-100: #f0f2f7;
  --gray-200: #e2e5ee;
  --gray-300: #c8cdd8;
  --gray-400: #9aa1b4;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.2);
  --radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: 'Inter', sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-900);
  color: var(--gray-800);
  overflow: hidden;
}

.login-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  z-index: 0;
}

.stripe {
  flex: 1;
  opacity: 0.9;
}

.stripe-blue {
  background: linear-gradient(180deg, var(--blue) 0%, var(--blue-dark) 100%);
}

.stripe-white {
  background: linear-gradient(180deg, #f0f2f7 0%, #dde0ea 100%);
}

.stripe-red {
  background: linear-gradient(180deg, var(--red) 0%, var(--red-dark) 100%);
}

.login-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  padding: 20px;
}

.login-card {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: 20px;
  padding: 48px 40px;
  box-shadow: var(--shadow-xl), 0 0 0 1px rgba(255,255,255,0.2);
  animation: cardSlideIn 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes cardSlideIn {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.login-header {
  text-align: center;
  margin-bottom: 36px;
}

.login-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-light) 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--white);
  box-shadow: 0 8px 24px rgba(0, 35, 149, 0.3);
}

.login-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--gray-900);
  letter-spacing: -0.02em;
}

.login-header p {
  font-size: 0.925rem;
  color: var(--gray-500);
  margin-top: 6px;
  font-weight: 400;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-wrapper svg {
  position: absolute;
  left: 14px;
  color: var(--gray-400);
  pointer-events: none;
  transition: var(--transition);
}

.input-wrapper input {
  width: 100%;
  padding: 14px 14px 14px 44px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: var(--gray-800);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}

.input-wrapper input::placeholder {
  color: var(--gray-400);
}

.input-wrapper input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(0, 35, 149, 0.1);
}

.input-wrapper input:focus + svg,
.input-wrapper input:focus ~ svg {
  color: var(--blue);
}

.toggle-password {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--gray-400);
  transition: var(--transition);
  display: flex;
  align-items: center;
  pointer-events: all;
}

.toggle-password:hover {
  color: var(--gray-600);
}

.error-message {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--red-dark);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  margin-bottom: 20px;
  animation: shakeError 0.4s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

@keyframes shakeError {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

.btn-login {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-light) 100%);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(0, 35, 149, 0.3);
  margin-top: 8px;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 35, 149, 0.4);
}

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

.btn-login:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn-loader {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

@media (max-width: 480px) {
  .login-card {
    padding: 36px 24px;
    border-radius: 16px;
  }
  .login-header h1 {
    font-size: 1.5rem;
  }
}