/* =========================================================
   sidemenu.css — top bar, hamburger, brand, sliding side menu
   ========================================================= */

.topbar {
  position: fixed;
  top: calc(16px + var(--safe-top));
  left: calc(16px + var(--safe-left));
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(10, 7, 20, 0.45);
  backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: background 0.2s ease, transform 0.15s ease;
}

.menu-toggle:active {
  transform: scale(0.92);
}

.menu-toggle__bar {
  width: 22px;
  height: 3px;
  border-radius: 2px;
  background: var(--color-white);
  transition: transform 0.25s ease, opacity 0.2s ease;
}

/* Animate hamburger into an X when menu is open */
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-white);
  font-size: clamp(20px, 4.5vw, 30px);
  letter-spacing: 0.3px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
  white-space: nowrap;
}

.brand__accent {
  color: var(--color-neon-green);
}

/* Backdrop behind the sliding menu */
.side-menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 60;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.side-menu-backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* The sliding panel itself */
.side-menu {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 70;
  width: min(85vw, 320px);
  height: 100vh;
  height: 100dvh;
  padding: calc(28px + var(--safe-top)) 24px 24px;
  background: var(--color-purple-deep);
  box-shadow: 8px 0 30px rgba(0, 0, 0, 0.35);
  transform: translateX(-105%);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
}

.side-menu.is-open {
  transform: translateX(0);
}

.side-menu__close {
  align-self: flex-end;
  font-size: 28px;
  line-height: 1;
  color: var(--color-white);
}

.side-menu__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: var(--color-white);
}

/* Login form */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 18px;
}

.login-form__label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 600;
  margin-top: 6px;
}

.login-form__input {
  height: 42px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
  padding: 0 12px;
  font-size: 16px; /* must be >= 16px or iOS Safari auto-zooms the page on focus */
}

.login-form__input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.login-form__submit {
  margin-top: 10px;
  height: 44px;
  border-radius: 22px;
  background: var(--color-teal);
  color: #08302b;
  font-weight: 800;
  font-size: 15px;
  transition: transform 0.15s ease, filter 0.15s ease;
}

.menu-state {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}

/* CRITICAL: without this, "display: flex" above wins over the browser's
   own [hidden] { display: none } rule — same bug class as the CTA
   button and logout notification. Without it, BOTH menu states would
   show at once regardless of login state. */
.menu-state[hidden] {
  display: none !important;
}

.side-menu__logout {
  margin-top: auto;
  height: 46px;
  border-radius: 22px;
  background: var(--color-neon-green);
  color: #06331c;
  font-weight: 800;
  font-size: 15px;
  transition: transform 0.15s ease, filter 0.15s ease;
}

.side-menu__logout:active {
  transform: scale(0.96);
}

.login-form__submit:active {
  transform: scale(0.96);
  filter: brightness(0.95);
}

.login-form__forgot {
  align-self: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 4px;
}

.login-form__signup {
  display: block;
  text-align: center;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.8);
  padding: 4px 0 2px;
}

.login-form__signup strong {
  color: var(--color-neon-green);
}

.login-form__error {
  font-size: 12.5px;
  font-weight: 700;
  color: #ff9db3;
  background: rgba(255, 111, 165, 0.12);
  border-radius: 8px;
  padding: 6px 10px;
  animation: loginErrorShake 0.4s ease-in-out;
}

@keyframes loginErrorShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

/* Extra nav links */
.side-menu__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.side-menu__links li a {
  display: block;
  padding: 12px 10px;
  border-radius: 10px;
  color: var(--color-white);
  font-weight: 700;
  font-size: 15px;
  transition: background 0.15s ease;
}

.side-menu__links li a:hover,
.side-menu__links li a:active {
  background: rgba(255, 255, 255, 0.08);
}

/* Tablet / desktop: menu can sit a little wider and calmer */
@media (min-width: 768px) {
  .side-menu {
    width: 340px;
    padding-top: 36px;
  }
  .brand {
    font-size: 30px;
  }
}