* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: 'Montserrat', sans-serif;
}

:root {
  --color-background: #0a0a0a;
  --color-surface: #111111;
  --color-surface-elevated: #1a1a1a;
  --color-border: #2a2a2a;
  --color-border-subtle: #1a1a1a;

  --color-text-primary: #ffffff;
  --color-text-secondary: #a1a1aa;
  --color-text-tertiary: #71717a;

  --color-accent: #3b82f6;
  --color-accent-hover: #2563eb;
  --color-accent-subtle: rgba(59, 130, 246, 0.1);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(10, 10, 10, 0.82);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border-subtle);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand .logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
}

.nav-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
  padding: 8px 18px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 12px 25px rgba(59, 130, 246, 0.35);
}

.auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(circle at top, rgba(59, 130, 246, 0.18), transparent 55%),
              radial-gradient(circle at bottom right, rgba(147, 51, 234, 0.14), transparent 55%),
              var(--color-background);
  color: var(--color-text-primary);
}

.auth-main {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 140px 24px 80px;
}

.auth-container {
  width: 100%;
  max-width: 1080px;
}

.auth-panel {
  background: linear-gradient(135deg, rgba(24, 24, 27, 0.92), rgba(8, 8, 10, 0.96));
  border-radius: 26px;
  border: 1px solid var(--color-border);
  box-shadow: 0 32px 70px rgba(0, 0, 0, 0.55);
  padding: 0;
  overflow: hidden;
}

.auth-panel + .auth-panel {
  margin-top: 40px;
}

.panel-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  min-height: 520px;
}

.panel-copy {
  position: relative;
  padding: 48px 48px 48px 56px;
  background: linear-gradient(145deg, rgba(37, 99, 235, 0.22), rgba(17, 24, 39, 0.65));
  border-right: 1px solid rgba(59, 130, 246, 0.2);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
}

.panel-copy h2 {
  font-size: 2.15rem;
  font-weight: 650;
}

.panel-copy p {
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 320px;
}

.panel-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(59, 130, 246, 0.18);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 999px;
  padding: 6px 16px;
}

.panel-switch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 10px 18px;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: var(--color-text-primary);
  cursor: pointer;
  font-weight: 600;
  transition: background-color 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.panel-switch:hover,
.panel-switch:focus-visible {
  background: rgba(59, 130, 246, 0.18);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  outline: none;
}

.panel-form {
  padding: 56px 56px 48px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.panel-form h1 {
  font-size: 2.4rem;
  font-weight: 650;
  color: var(--color-text-primary);
}

.panel-description {
  color: var(--color-text-secondary);
  max-width: 420px;
  line-height: 1.6;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}

.field-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(15, 15, 18, 0.92);
  border-radius: 14px;
  border: 1px solid rgba(39, 39, 42, 0.7);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field-inner:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 12px 30px rgba(59, 130, 246, 0.25);
}

.field-icon {
  color: var(--color-accent);
  font-size: 1.2rem;
}

.field-inner input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text-primary);
  font-size: 0.98rem;
}

.field-inner input::placeholder {
  color: var(--color-text-tertiary);
}

.toggle-password {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.toggle-password:hover,
.toggle-password:focus-visible {
  color: var(--color-text-primary);
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(59, 130, 246, 0.1);
  outline: none;
}

.toggle-password.is-active {
  color: var(--color-accent);
  border-color: rgba(59, 130, 246, 0.5);
}

.auth-submit {
  width: 100%;
  padding: 14px;
  font-size: 1.05rem;
  border-radius: 14px;
}

.form-actions {
  margin-top: 4px;
}

.panel-footer {
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--color-text-tertiary);
}

.link-button {
  background: none;
  border: none;
  color: var(--color-accent);
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.2s ease;
}

.link-button:hover,
.link-button:focus-visible {
  color: var(--color-accent-hover);
  outline: none;
}

.hide {
  display: none !important;
}

.toast-container {
  position: fixed;
  right: 24px;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 260px;
  max-width: 360px;
  background: rgba(17, 17, 19, 0.92);
  color: var(--color-text-primary);
  padding: 14px 16px;
  border-radius: 14px;
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  transform: translateY(12px);
  opacity: 0;
  transition: transform 260ms ease, opacity 260ms ease;
  border-left: 6px solid transparent;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success {
  border-color: #16a34a;
}

.toast.error {
  border-color: #dc2626;
}

.toast-message {
  flex: 1 1 auto;
  font-size: 0.95rem;
}

.toast-close {
  cursor: pointer;
  background: transparent;
  border: none;
  color: #888;
  font-size: 1.1rem;
}

.field-inner input:-webkit-autofill,
.field-inner input:-webkit-autofill:hover,
.field-inner input:-webkit-autofill:focus,
.field-inner input:-webkit-autofill:active {
  -webkit-text-fill-color: var(--color-text-primary);
  -webkit-box-shadow: 0 0 0px 1000px rgba(15, 15, 18, 0.92) inset;
  box-shadow: 0 0 0px 1000px rgba(15, 15, 18, 0.92) inset;
  transition: background-color 9999s ease-out;
  caret-color: var(--color-text-primary);
}

.field-inner input:-webkit-autofill::selection {
  -webkit-text-fill-color: var(--color-text-primary);
}

@media (max-width: 1024px) {
  .panel-grid {
    grid-template-columns: 1fr;
  }

  .panel-copy {
    border-right: none;
    border-bottom: 1px solid rgba(59, 130, 246, 0.18);
    padding: 40px 40px 32px;
    align-items: center;
    text-align: center;
  }

  .panel-copy p {
    max-width: none;
  }

  .panel-form {
    padding: 40px;
  }
}

@media (max-width: 768px) {
  .navbar {
    background-color: rgba(10, 10, 10, 0.9);
  }

  .nav-container {
    height: 56px;
    padding: 0 18px;
  }

  .brand-text {
    display: none;
  }

  .auth-main {
    padding: 120px 18px 60px;
  }

  .auth-panel + .auth-panel {
    margin-top: 24px;
  }

  .panel-form h1 {
    font-size: 2.1rem;
  }
}

@media (max-width: 520px) {
  .panel-copy,
  .panel-form {
    padding: 32px;
  }

  .toast-container {
    right: 16px;
    left: 16px;
    bottom: 16px;
  }
}