* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-body);
}

body {
  min-height: 100vh;
  background: var(--color-bg);
}

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

.auth-shell {
  display: flex;
  width: 100%;
  max-width: 960px;
  min-height: 560px;
  background: var(--color-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  animation: auth-shell-in 0.5s var(--ease-standard);
}

@keyframes auth-shell-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* -------------------------------------------------------------------------- */
/*                              Brand side panel                              */
/* -------------------------------------------------------------------------- */

.auth-brand {
  position: relative;
  flex: 1;
  background: var(--gradient-primary);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
}

.brand-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(50px);
  opacity: 0.45;
  animation: brand-float 9s ease-in-out infinite;
}

.brand-blob--1 {
  width: 220px;
  height: 220px;
  background: var(--color-accent);
  top: 8%;
  left: -10%;
}

.brand-blob--2 {
  width: 260px;
  height: 260px;
  background: var(--color-dark);
  bottom: -10%;
  right: -8%;
  animation-delay: 3s;
}

@keyframes brand-float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(20px, -20px) scale(1.06);
  }
}

.auth-brand-content {
  position: relative;
  z-index: 1;
  color: #fff;
  text-align: center;
}

.auth-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.auth-brand-content h1 {
  font-size: var(--text-section);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: var(--space-4);
}

.auth-brand-content p {
  font-size: var(--text-body);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

/* -------------------------------------------------------------------------- */
/*                                 Form panel                                 */
/* -------------------------------------------------------------------------- */

.auth-panel {
  position: relative;
  flex: 1;
  padding: var(--space-8) var(--space-7);
  display: flex;
  align-items: center;
}

#flip {
  display: none;
}

.auth-forms {
  position: relative;
  width: 100%;
}

.auth-form-panel {
  transition: opacity var(--duration-base) var(--ease-standard),
    transform var(--duration-base) var(--ease-standard);
}

.login-form.auth-form-panel {
  position: relative;
  opacity: 1;
  transform: translateX(0);
}

.signup-form.auth-form-panel {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateX(16px);
  pointer-events: none;
}

#flip:checked ~ .auth-forms .login-form.auth-form-panel {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateX(-16px);
  pointer-events: none;
}

#flip:checked ~ .auth-forms .signup-form.auth-form-panel {
  position: relative;
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.auth-title {
  font-family: var(--font-heading);
  font-size: var(--text-section);
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: var(--space-2);
}

.auth-subtitle {
  font-size: var(--text-caption);
  color: var(--color-border-interactive);
  margin-bottom: var(--space-6);
}

.input-box {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: 50px;
  width: 100%;
  margin: 0 0 var(--space-4);
  position: relative;
  border-bottom: 2px solid var(--color-border);
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.input-box:focus-within {
  border-color: var(--color-primary);
}

.input-box i {
  color: var(--color-border-interactive);
  font-size: 16px;
  flex-shrink: 0;
}

.input-box input {
  flex: 1;
  height: 100%;
  width: 100%;
  outline: none;
  border: none;
  font-size: var(--text-body);
  font-weight: 500;
  font-family: var(--font-body);
  color: var(--color-dark);
  background: transparent;
}

.toggle-password {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-border-interactive);
  font-size: 16px;
  padding: var(--space-1);
  flex-shrink: 0;
}

.toggle-password:hover,
.toggle-password:focus-visible {
  color: var(--color-primary);
}

.text {
  font-size: var(--text-caption);
  color: var(--color-border-interactive);
}

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

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

.button.input-box {
  height: auto;
  border-bottom: none;
  margin-top: var(--space-6);
}

.button.input-box input {
  color: #fff;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  padding: var(--space-4) 0;
  text-align: center;
  cursor: pointer;
  font-weight: 600;
  font-size: var(--text-body);
  transition: transform var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

.button.input-box input:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-primary);
}

.sign-up-text {
  text-align: center;
  margin-top: var(--space-5);
}

.sign-up-text label {
  color: var(--color-primary-600);
  font-weight: 600;
  cursor: pointer;
}

.sign-up-text label:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .auth-brand {
    display: none;
  }

  .auth-shell {
    max-width: 480px;
  }

  .auth-panel {
    padding: var(--space-7) var(--space-5);
  }
}

/* -------------------------------------------------------------------------- */
/*                          Forgot password modal                             */
/* -------------------------------------------------------------------------- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-overlay);
  padding: var(--space-5);
}

.modal-overlay[hidden] {
  display: none;
}

.modal-card {
  position: relative;
  background: var(--color-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-7);
  max-width: 420px;
  width: 100%;
  animation: auth-shell-in 0.3s var(--ease-standard);
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: none;
  border: none;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  color: var(--color-border-interactive);
}

.modal-close:hover,
.modal-close:focus-visible {
  color: var(--color-primary);
}