:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --bg-gradient-start: #0f172a;
  --bg-gradient-end: #1e1b4b;
  --card-bg: rgba(255, 255, 255, 0.95);
  --text-dark: #0f172a;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --error-bg: #fef2f2;
  --error-text: #b91c1c;
  --error-border: #fecaca;
  --success-bg: #f0fdf4;
  --success-text: #15803d;
  --success-border: #bbf7d0;
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.25), 0 8px 10px -6px rgba(0, 0, 0, 0.2);
}

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

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(circle at 20% 20%, #1e1b4b 0%, #0f172a 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  color: var(--text-dark);
}

.login-wrapper {
  width: 100%;
  max-width: 440px;
}

.login-container {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border-radius: 20px;
  padding: 2.5rem 2.25rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.login-logo {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  color: #fff;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 800;
  box-shadow: 0 8px 16px -4px rgba(79, 70, 229, 0.4);
  margin-bottom: 1rem;
}

.login-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.02em;
}

.login-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

/* Alert styles */
.alert {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  font-size: 0.86rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.alert svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.alert-error {
  background: var(--error-bg);
  color: var(--error-text);
  border: 1px solid var(--error-border);
}

.alert-success {
  background: var(--success-bg);
  color: var(--success-text);
  border: 1px solid var(--success-border);
}

/* Form */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

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

.form-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: #334155;
}

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

.input-icon {
  position: absolute;
  left: 14px;
  width: 18px;
  height: 18px;
  color: #94a3b8;
  pointer-events: none;
}

.form-input {
  width: 100%;
  padding: 0.78rem 1rem 0.78rem 2.6rem;
  font-size: 0.92rem;
  font-family: inherit;
  color: var(--text-dark);
  background: #f8fafc;
  border: 1.5px solid var(--border-color);
  border-radius: 10px;
  outline: none;
  transition: all 0.2s ease;
}

.form-input:focus {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

.form-input::placeholder {
  color: #94a3b8;
}

.pwd-toggle {
  position: absolute;
  right: 12px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: #94a3b8;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: color 0.15s ease;
}

.pwd-toggle:hover {
  color: var(--text-dark);
}

.pwd-toggle svg {
  width: 18px;
  height: 18px;
}

.submit-btn {
  margin-top: 0.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.85rem 1.25rem;
  background: linear-gradient(135deg, #4f46e5 0%, #6366f1 100%);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(79, 70, 229, 0.4);
}

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

.submit-btn svg {
  width: 18px;
  height: 18px;
  transition: transform 0.2s ease;
}

.submit-btn:hover svg {
  transform: translateX(3px);
}

/* Demo Credentials Box */
.demo-credentials {
  margin-top: 1.75rem;
  padding: 0.9rem 1rem;
  background: #f1f5f9;
  border: 1px dashed #cbd5e1;
  border-radius: 10px;
  font-size: 0.8rem;
  color: #475569;
}

.demo-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #4f46e5;
  margin-bottom: 0.35rem;
}

.demo-details {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.demo-details strong {
  color: #1e293b;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}