/* Variables for theming */
:root {
  --primary-color: #4F46E5;
  --primary-hover: #4338CA;
  --bg-color: #F8FAFC;
  --text-main: #1E293B;
  --text-muted: #64748B;
  --card-bg: #FFFFFF;
  --input-border: #E2E8F0;
  --input-focus: #4F46E5;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --border-radius: 1rem;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
  background: radial-gradient(circle at 10% 20%, rgba(216, 241, 230, 0.46) 0%, rgba(233, 226, 226, 0.28) 90.1%),
              linear-gradient(135deg, #fdfcfb 0%, #e2d1c3 100%);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  line-height: 1.5;
}

/* Login Container */
.login-container {
  width: 100%;
  max-width: 420px;
  animation: fadeIn 0.5s ease-out;
}

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

/* Login Card */
.login-card {
  background: var(--card-bg);
  padding: 2.5rem 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.8);
  position: relative;
  overflow: hidden;
}

/* Subtle texture overlay */
.login-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3BaseFilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/baseFilter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.02;
  pointer-events: none;
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-header h1 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.login-header p {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* Form Styles */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-main);
}

.form-group input {
  padding: 0.75rem 1rem;
  border: 1px solid var(--input-border);
  border-radius: 0.625rem;
  font-size: 1rem;
  transition: var(--transition);
  background: #F9FAFB;
}

.form-group input:focus {
  outline: none;
  border-color: var(--input-focus);
  background: #FFFFFF;
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

.form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
}

.remember-me {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  color: var(--text-muted);
}

.forgot-password {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
}

.forgot-password:hover {
  text-decoration: underline;
}

.login-button {
  background: var(--primary-color);
  color: white;
  padding: 0.75rem;
  border: none;
  border-radius: 0.625rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 0.5rem;
}

.login-button:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.2), 0 2px 4px -1px rgba(79, 70, 229, 0.1);
}

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

.login-footer {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.login-footer a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}

.login-footer a:hover {
  text-decoration: underline;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  .login-container, .login-button, .form-group input {
    transition: none;
    animation: none;
  }
}

/* Logical properties for better LTR/RTL support */
.form-group input {
  padding-inline: 1rem;
}