/* ==========================================================================
   components.css — Nav, buttons, forms, footer, hero
   ========================================================================== */

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 50;
  display: none;
}

@media (min-width: 768px) {
  .nav {
    display: block;
  }
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-fg-70);
}

.nav__link {
  transition: color 0.3s var(--ease);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--color-fg);
}

/* ---------- Mobile nav toggle ---------- */
.nav-toggle {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 60;
  display: inline-flex;
  width: 2.5rem;
  height: 2.5rem;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  border: 1px solid var(--color-fg-15);
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-fg-80);
  transition: color 0.3s var(--ease);
}

.nav-toggle:hover {
  color: var(--color-fg);
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }
}

.nav-toggle__icon {
  width: 1rem;
  height: 1rem;
}

.nav-toggle__icon--close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon--open {
  display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon--close {
  display: block;
}

/* ---------- Mobile menu overlay ---------- */
.nav-mobile {
  position: fixed;
  inset: 0;
  z-index: 55;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s var(--ease);
}

.nav-mobile.is-open {
  opacity: 1;
  pointer-events: auto;
}

@media (min-width: 768px) {
  .nav-mobile {
    display: none;
  }
}

.nav-mobile__list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  font-size: 0.875rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-fg-80);
}

.nav-mobile__link {
  transition: color 0.3s var(--ease);
}

.nav-mobile__link:hover,
.nav-mobile__link.is-active {
  color: var(--color-fg);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-fg-30);
  padding: 1rem 2.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-fg);
  background-color: transparent;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease);
}

.btn:hover {
  background-color: var(--color-fg);
  color: var(--color-bg);
}

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

.btn--outline-soft {
  border-color: var(--color-fg-20);
  padding: 0.75rem 1.5rem;
  gap: 0.5rem;
}

/* ---------- Forms ---------- */
.form {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.form__group {
  display: flex;
  flex-direction: column;
}

.form__label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-fg-50);
}

.form__field {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-fg-20);
  padding: 0.75rem 0;
  color: var(--color-fg);
  transition: border-color 0.3s var(--ease);
}

.form__field::placeholder {
  color: var(--color-fg-30);
}

.form__field:focus {
  outline: none;
  border-bottom-color: var(--color-fg);
}

.form__field[aria-invalid="true"] {
  border-bottom-color: var(--color-danger);
}

textarea.form__field {
  resize: vertical;
  min-height: 7rem;
}

.form__error {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-danger);
}

.form__submit {
  margin-top: 1rem;
  align-self: flex-start;
}

/* ---------- Confirmation card ---------- */
.confirmation {
  border: 1px solid var(--color-fg-15);
  border-radius: var(--radius);
  padding: 2rem;
  font-size: 0.875rem;
  color: var(--color-fg-80);
}

.confirmation__title {
  color: var(--color-fg);
  margin-bottom: 0.5rem;
}

.confirmation__hint {
  color: var(--color-fg-60);
}

.confirmation__again {
  margin-top: 1.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-fg-60);
  text-underline-offset: 4px;
}

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

/* ---------- Divider & social ---------- */
.divider {
  width: 4rem;
  height: 1px;
  background-color: var(--color-fg-15);
  margin: 0 auto;
}

.social {
  margin-top: 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.social__label {
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-fg-50);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(150%);
  z-index: 100;
  padding: 0.875rem 1.25rem;
  background-color: #111;
  color: var(--color-fg);
  border: 1px solid var(--color-fg-15);
  border-radius: var(--radius);
  font-size: 0.8rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  transition: transform 0.4s var(--ease), opacity 0.4s var(--ease);
  opacity: 0;
  max-width: calc(100% - 3rem);
}

.toast.is-visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast--error {
  border-color: var(--color-danger);
}

/* ---------- Footer ---------- */
.footer {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  font-size: 0.6rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--color-fg-30);
  text-align: center;
}

/* ---------- Hero (home) ---------- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  overflow: hidden;
  text-align: center;
  padding-inline: 1.5rem;
}

.hero__inner {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__logo {
  width: clamp(16rem, 42vw, 30rem);
  user-select: none;
  -webkit-user-drag: none;
}

.hero__loading {
  margin-top: 2.5rem;
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-fg-60);
}

.hero__dots {
  display: inline-flex;
  width: 1.5rem;
  margin-left: 0.5rem;
  justify-content: flex-start;
}

.hero__dot {
  opacity: 0;
  animation: vayn-dot 1.8s ease-in-out infinite;
}

.hero__dot:nth-child(2) {
  animation-delay: 0.45s;
}

.hero__dot:nth-child(3) {
  animation-delay: 0.9s;
}