/* ==============================
   ZRTST — Responsive CSS (Final Safari compatible)
   ============================== */

/* ---------- Reset overflow ---------- */
html, body {
  overflow-x: hidden;
  margin: 0;
}

/* ---------- Header & Structure ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(15,15,16,.85);
  backdrop-filter: saturate(120%) blur(6px);
  border-bottom: 1px solid rgba(201,168,106,.25);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

/* ---------- Hamburger (mobile) ---------- */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1100;
}

.nav-toggle .bar {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--ink);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Animation croix */
.nav-toggle.active .bar:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active .bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active .bar:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Menu principal (desktop par défaut) */
.main-nav {
  display: flex;
  gap: 20px;
  align-items: center;
}

/* ---------- Desktop : hamburger masqué, menu visible ---------- */
@media screen and (min-width: 721px) {
  .nav-toggle {
    display: none !important;
    visibility: hidden;
  }

  .main-nav {
    display: flex !important;
    position: static !important;
    transform: none !important;
    background: transparent !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: flex-end !important;
    height: auto !important;
    padding: 0 !important;
  }
}

/* ---------- Mobile : menu repliable ---------- */
@media (max-width: 720px) {
  .main-nav {
    position: fixed;
    top: var(--header);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header));
    flex-direction: column;
    background: rgba(20,20,24,.95);
    padding: 30px 20px;
    transform: translateX(-100%);
    transition: transform 0.35s ease;
    overflow-y: auto;
    text-align: center;
    z-index: 999;
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .main-nav a {
    display: block;
    margin: 10px 0;
    font-size: 1.1rem;
    color: var(--ink);
  }

  .main-nav a.btn {
    margin-top: 16px;
  }
}

/* ---------- Formulaire responsive ---------- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

@media (max-width: 720px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.form-field, .form-field-full {
  width: 100%;
}

.input,
input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

/* ---------- Footer responsive ---------- */
.site-footer {
  overflow-x: hidden;
}

.footer-top,
.footer-bottom {
  display: grid;
  gap: 18px;
  max-width: 100%;
  padding: 20px;
}

@media (min-width: 720px) {
  .footer-top {
    grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
  }

  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
}

.signup-foot input {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

/* ---------- Sections fixes ---------- */
.section {
  position: relative;
  max-width: 100%;
  overflow-x: hidden;
}

/* ---------- Prevent content shifting ---------- */
body {
  overflow-x: hidden;
  margin: 0;
}

/* ---------- Smooth transitions ---------- */
.main-nav,
.nav-toggle .bar {
  transition: all 0.35s ease;
}