/* ============================================
   Auth Pages — CSS (login, signup)
   Reuses design tokens from style.css
   ============================================ */

/* --- Layout --- */
.auth-main {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + 40px) 24px 60px;
  background: var(--light-bg);
}

/* --- Card --- */
.auth-card {
  width: 100%;
  max-width: 400px;
  padding: 48px 36px;
  background: var(--white);
  border-radius: 16px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  opacity: 0;
  transform: translateY(16px);
  animation: auth-card-in 0.6s var(--ease-out-quart) forwards;
}

@keyframes auth-card-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Title --- */
.auth-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  color: var(--black);
}

.auth-sub {
  font-size: 15px;
  color: var(--gray);
  margin-bottom: 32px;
}

/* --- Form --- */
.auth-form {
  display: flex;
  flex-direction: column;
}

.auth-field {
  margin-bottom: 20px;
}

.auth-field label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--black);
  margin-bottom: 8px;
}

.auth-field input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 12px;
  font-size: 15px;
  font-family: var(--font);
  outline: none;
  background: var(--white);
  color: var(--black);
  box-sizing: border-box;
  transition: border-color 0.4s var(--ease-spring),
              box-shadow 0.4s var(--ease-spring);
}

.auth-field input:focus {
  border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

.auth-field input.error {
  border-color: #d32f2f;
  box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.08);
}

/* --- Error message --- */
.auth-error {
  color: #d32f2f;
  font-size: 13px;
  min-height: 20px;
  margin-bottom: 12px;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out-quart);
}

.auth-error.visible {
  opacity: 1;
}

/* --- Submit button --- */
.auth-submit {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 8px;
  background: var(--black);
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: transform 0.4s var(--ease-spring),
              opacity 0.4s var(--ease-spring);
}

.auth-submit:hover {
  opacity: 0.88;
}

.auth-submit:active {
  transform: scale(0.96);
  transition-duration: 0.1s;
}

.auth-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --- Switch link --- */
.auth-switch {
  text-align: center;
  margin-top: 24px;
  font-size: 14px;
  color: var(--gray);
}

.auth-switch a {
  color: var(--black);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* --- Nav auth elements --- */
.nav-auth {
  display: flex;
  align-items: center;
  margin-left: 12px;
  gap: 8px;
}

.nav-auth-login {
  font-size: 11px;
  color: var(--white);
  padding: 5px 14px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.4s var(--ease-spring);
  white-space: nowrap;
}

.nav-auth-login:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.nav-auth-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--white);
  color: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  transition: transform 0.4s var(--ease-spring);
}

.nav-auth-avatar:hover {
  transform: scale(1.08);
}

/* --- Dropdown --- */
.nav-auth-dropdown {
  position: absolute;
  top: 36px;
  right: 0;
  min-width: 160px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  border: 1px solid rgba(0, 0, 0, 0.06);
  padding: 8px 0;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 0.3s var(--ease-out-quart),
              transform 0.3s var(--ease-out-quart);
  z-index: 1000;
}

.nav-auth-dropdown.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.nav-auth-dropdown-name {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--black);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  margin-bottom: 4px;
}

.nav-auth-dropdown-email {
  padding: 2px 16px 8px;
  font-size: 11px;
  color: var(--gray);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  margin-bottom: 4px;
}

.nav-auth-logout {
  display: block;
  width: 100%;
  padding: 8px 16px;
  font-size: 13px;
  color: #d32f2f;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  font-family: var(--font);
  transition: background 0.3s var(--ease-spring);
}

.nav-auth-logout:hover {
  background: rgba(211, 47, 47, 0.06);
}

/* --- Mobile auth --- */
.mobile-auth {
  padding: 16px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 12px;
}

.mobile-auth-login {
  display: block;
  text-align: center;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  color: var(--white);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}

.mobile-auth-user {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--white);
}

.mobile-auth-name {
  font-size: 14px;
  font-weight: 500;
}

.mobile-auth-logout-btn {
  padding: 6px 14px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  background: none;
  color: var(--white);
  font-size: 13px;
  cursor: pointer;
  font-family: var(--font);
}

/* --- Responsive --- */
@media (max-width: 734px) {
  .auth-card {
    padding: 36px 24px;
  }

  .auth-title {
    font-size: 24px;
  }

  .nav-auth {
    display: none;
  }
}