/* Reset and base styles */
:root {
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray-700: #1f2937;
  --color-gray-600: #4b5563;
  --color-gray-500: #6b7280;
  --color-gray-400: #9ca3af;
  --color-gray-300: #d1d5db;
  --color-red-100: #fee2e2;
  --color-red-700: #991b1b;
  --color-green-600: #16a34a;
--color-green-700: #15803d;
--color-green-400: #86efac;

  --shadow-black: rgba(0, 0, 0, 0.25);
  --transition: all 0.3s ease;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --gap-sm: 0.5rem;
  --gap-md: 1rem;
  --gap-lg: 1.5rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.5rem;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--color-black);
  color: var(--color-gray-700);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--gap-md);
}

.container {
  width: 100%;
  max-width: 28rem;
}

/* Notification banner */
.notification {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
  background-color: var(--color-red-100);
  color: var(--color-red-700);
  padding: var(--gap-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.notification svg {
  flex-shrink: 0;
}

/* Login card styles */
.login-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px var(--shadow-black);
  overflow: hidden;
}

.card-content {
  padding: 2rem;
}

/* Logo styles */
.logo {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
  margin-bottom: 2rem;
  color: var(--color-black);
}

.logo svg {
  transition: transform var(--transition);
}

.logo:hover svg {
  transform: rotate(-5deg);
}

.logo span {
  font-size: var(--font-size-lg);
  font-weight: bold;
}

/* Heading styles */
h2 {
  font-size: var(--font-size-lg);
  font-weight: bold;
  color: var(--color-gray-700);
  margin-bottom: var(--gap-sm);
}

.subtitle {
  color: var(--color-gray-500);
  margin-bottom: 2rem;
}

/* Form styles */
.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--gap-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
}

label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: var(--gap-sm) var(--gap-md);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-size: var(--font-size-md);
  transition: var(--transition);
}

input[type="text"]:focus,
input[type="password"]:focus {
  outline: none;
  border-color: var(--color-green-600);
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}

.form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.remember-me {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
}

input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-gray-300);
  accent-color: var(--color-black);
}

.remember-me label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

.forgot-password {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-black);
  text-decoration: none;
  transition: color var(--transition);
}

.forgot-password:hover {
  color: var(--color-green-700);
}

/* Button styles */
.btn-submit {
  width: 100%;
  padding: var(--gap-sm) var(--gap-md);
  background-color: var(--color-black);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-md);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.btn-submit:hover {
  background-color: var(--color-green-700);
  transform: translateY(-1px);
}

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

/* Sign up prompt */
.signup-prompt {
  margin-top: var(--gap-lg);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.signup-prompt a {
  color: var(--color-green-600);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition);
}

.signup-prompt a:hover {
  color: var(--color-green-700);
}

/* Card footer with gradient */
.card-footer {
  position: relative;
  height: 0.5rem;
}

.gradient-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--color-green-600), var(--color-green-400));
  opacity: 0.1;
}

.gradient-line {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--color-green-600), var(--color-green-400));
  height: 0.5rem;
}

/* Responsive styles */
@media (max-width: 640px) {
  .card-content {
    padding: 1.5rem;
  }

  .form-options {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--gap-md);
  }

  .forgot-password {
    align-self: flex-end;
  }
}