/* ==========================================================================
   NOMU — Components
   Reusable pieces: header, logo, buttons, chips, form fields, FAQ items.
   ========================================================================== */

/* ---- Header -------------------------------------------------------------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  transition: transform var(--dur-base) var(--ease-out),
              background-color var(--dur-base) var(--ease-out);
}
.site-header.is-scrolled { background: var(--paper); }
.site-header.is-hidden   { transform: translateY(-100%); }

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 84px;
}

.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.7rem;
  letter-spacing: -0.02em;
  line-height: 1;
}

.nav { margin-inline-start: auto; }
.nav__list { display: flex; gap: clamp(20px, 2.2vw, 36px); }
.nav__link {
  position: relative;
  font-weight: 500;
  padding-block: 6px;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -4px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--violet);
  transform: translateX(-50%) scale(0);
  transition: transform var(--dur-fast) var(--ease-out);
}
.nav__link:hover::after,
.nav__link.is-active::after { transform: translateX(-50%) scale(1); }

/* EN / عربي switch */
.lang-switch {
  display: inline-grid;
  place-items: center;
  min-width: 46px;
  height: 46px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  background: var(--lavender);
  font-weight: 700;
  font-size: 0.95rem;
  transition: background-color var(--dur-fast), color var(--dur-fast);
}
.lang-switch:hover { background: var(--midnight); color: var(--white); }
.lang-switch[lang="ar"] { font-family: var(--font-arabic); font-size: 1rem; }

.menu-toggle {
  display: none;
  width: 48px; height: 48px;
  border: 0;
  border-radius: 50%;
  background: var(--midnight);
  position: relative;
}
.menu-toggle__bars,
.menu-toggle__bars::before {
  position: absolute;
  left: 15px;
  width: 18px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-out);
}
.menu-toggle__bars { top: 20px; }
.menu-toggle__bars::before { content: ""; left: 0; top: 7px; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars { transform: translateY(3.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::before { transform: translateY(-7px) rotate(-90deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 120px var(--gutter) 40px;
  background: var(--midnight-deep);
  color: var(--white);
}
.mobile-menu[hidden] { display: none; }
.mobile-menu ul { display: grid; gap: 8px; }
.mobile-menu a {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 10vw, 3.4rem);
  letter-spacing: -0.04em;
  line-height: 1.15;
}
.mobile-menu__foot { color: var(--muted-on-dark); }
.mobile-menu__foot .arabic { color: var(--white); font-size: 1.4rem; margin-inline-end: 8px; }

@media (max-width: 900px) {
  .site-header .nav,
  .site-header .site-header__cta { display: none; }
  .site-header__inner { gap: 12px; }
  .site-header .lang-switch { margin-inline-start: auto; }
  .menu-toggle { display: block; }
  .site-header.menu-open { background: transparent; }
  .site-header.menu-open .logo { color: var(--white); }
  .site-header.menu-open .menu-toggle { background: var(--violet); }
  .site-header.menu-open .lang-switch { background: rgba(255, 255, 255, 0.1); color: var(--white); }
}

/* ---- Buttons ------------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 56px;
  padding: 0 30px;
  border: 0;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.005em;
  white-space: nowrap;
  transition: background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
  will-change: transform;
}
.button:active { transform: scale(0.97); }
.button[disabled] { opacity: 0.6; cursor: progress; }

.button--primary { background: var(--violet); color: var(--white); }
.button--primary:hover { background: var(--violet-deep); }

.button--ghost { background: var(--lavender); color: var(--ink); }
.button--ghost:hover { background: #ECE8FF; }

.button--small { min-height: 46px; padding: 0 22px; font-size: 0.95rem; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  padding-block: 8px;
}
.link-arrow span { transition: transform var(--dur-base) var(--ease-out); }
.link-arrow:hover span { transform: translateX(6px); }
[dir="rtl"] .link-arrow:hover span { transform: translateX(-6px); }

/* ---- Chips (multiple-choice buttons in the contact form) ----------------- */

.chips { display: flex; flex-wrap: wrap; gap: 10px; }

.chip { position: relative; cursor: pointer; }
.chip input {
  position: absolute;
  opacity: 0;
  inset: 0;
  margin: 0;
  cursor: pointer;
}
.chip span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: var(--radius-pill);
  background: var(--lavender);
  font-weight: 500;
  transition: background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.chip span::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.25;
  transition: opacity var(--dur-fast), background-color var(--dur-fast);
}
.chip:hover span { background: #ECE8FF; }
.chip input:active + span { transform: scale(0.96); }
.chip input:checked + span { background: var(--midnight); color: var(--white); }
.chip input:checked + span::before { background: var(--violet); opacity: 1; }
.chip input:focus-visible + span { outline: 2px solid var(--violet); outline-offset: 3px; }

/* ---- Form fields --------------------------------------------------------- */

.field { display: grid; gap: 8px; align-content: start; }
.field label,
.field-group legend {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
}
.field__optional { font-family: var(--font-text); font-weight: 400; color: var(--ink-muted); font-size: 0.9rem; }

.field input,
.field textarea {
  width: 100%;
  min-height: 56px;
  padding: 14px 18px;
  border: 1.5px solid var(--hairline);
  border-radius: 16px;
  background: var(--white);
  font-size: 1.05rem;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.field textarea { resize: vertical; min-height: 150px; line-height: 1.55; }
.field input:hover,
.field textarea:hover { border-color: rgba(20, 20, 43, 0.28); }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--violet);
  box-shadow: 0 0 0 4px rgba(108, 77, 255, 0.16);
}
.field.is-invalid input,
.field.is-invalid textarea { border-color: #D9472B; }
.field.is-valid input,
.field.is-valid textarea { border-color: rgba(108, 77, 255, 0.55); }
.field__error { min-height: 1.2em; font-size: var(--size-small); color: #C23A1F; }

.field-group { border: 0; padding: 0; margin: 0; }
.field-group legend { padding: 0; margin-bottom: 14px; }

/* ---- FAQ item ------------------------------------------------------------ */

.qa { border-top: 1px solid var(--hairline); }
.qa:last-child { border-bottom: 1px solid var(--hairline); }

.qa summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 28px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  letter-spacing: -0.02em;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
  content: "";
  flex: none;
  width: 40px; height: 40px;
  border-radius: 50%;
  background:
    linear-gradient(var(--ink), var(--ink)) center / 14px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) center / 2px 14px no-repeat,
    var(--white);
  transition: transform var(--dur-base) var(--ease-out), background-color var(--dur-fast);
}
.qa[open] summary::after {
  transform: rotate(135deg);
  background:
    linear-gradient(var(--white), var(--white)) center / 14px 2px no-repeat,
    linear-gradient(var(--white), var(--white)) center / 2px 14px no-repeat,
    var(--violet);
}
.qa summary:hover::after { transform: scale(1.08); }
.qa[open] summary:hover::after { transform: rotate(135deg) scale(1.08); }
.qa p {
  max-width: 60ch;
  padding-bottom: 30px;
  font-size: 1.08rem;
}