@import url("./variables.css");

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0) 92%,
    rgba(149, 87, 181, 1) 100%
  );
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: none;
}

header {
  vertical-align: center;
  flex-shrink: 0;
  background: linear-gradient(
    180deg,
    var(--gradient-1) 0%,
    var(--gradient-2) 33%,
    var(--gradient-3) 66%,
    var(--gradient-4) 100%
  );

  .nav-logo {
    font-family: var(--font-display);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-foreground);
    text-decoration: none;
    text-shadow:
      0 0 16px var(--header-shadow-strong),
      0 0 32px var(--header-shadow-soft);
  }

  .nav-left {
    display: flex;
    align-items: center;
    gap: var(--space-l);
  }

  .nav-left-links,
  .nav-right-links {
    font-family: var(--font-display);
    display: flex;
    gap: var(--space-l);
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
  }

  nav {
    padding: var(--space-s) var(--space-s);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--step-2);

    a {
      font-family: var(--font-display);
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--accent-foreground);
      text-decoration: none;
    }

    ul {
      display: flex;
      gap: var(--space-l);
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
    }

    ul a {
      font-size: var(--step--1);
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--accent-foreground);
      text-decoration: none;
      transition: opacity 0.15s;
    }

    a,
    ul a {
      text-shadow:
        0 0 16px var(--header-shadow-strong),
        0 0 32px var(--header-shadow-soft);
    }

    ul a:hover {
      opacity: 1;
    }
  }

  ul a[aria-current="page"] {
    opacity: 1;
    border-bottom: 1px solid var(--header-nav-active-border);
    padding-bottom: 1px;
  }

  /* nav-top-row: transparent wrapper at desktop — children become
     direct flex items of nav, preserving the existing layout */
  .nav-top-row {
    display: contents;
  }

  /* nav-mobile-links: mobile-only dropdown, hidden at desktop */
  .nav-mobile-links {
    display: none; /* overridden to block inside the mobile media query */
  }
}

/* ============================================================
   HAMBURGER MENU — public nav (pure CSS, checkbox trick)

   DOM order inside <header> (public only):
     input.menu-btn           ← off-screen checkbox
     nav
       div.nav-top-row        ← always-visible row (logo + burger)
         div.nav-left         ← logo + desktop link list
         ul.nav-right-links   ← desktop right links
         label.menu-icon      ← burger icon trigger
       ul.nav-mobile-links    ← full dropdown (hidden by default)

   At desktop: .menu-icon and .nav-mobile-links are display:none.
               .nav-top-row is display:contents so its children
               participate directly in nav’s flex row.
   At mobile:  nav becomes a flex column. .nav-top-row is a real
               flex row (logo | burger). .nav-mobile-links expands
               via max-height on checkbox:checked.
   ============================================================ */

/* Off-screen checkbox — triggered by its label */
.menu-btn {
  position: absolute;
  top: -9999px;
  left: -9999px;
}

/* Burger label — takes no space at desktop */
.menu-icon {
  display: none;
  cursor: pointer;
  padding: var(--space-2xs) var(--space-s);
  align-items: center;
  justify-content: center;
}

/* Middle bar of the burger icon */
.navicon {
  background: var(--accent-foreground);
  display: block;
  height: 2px;
  width: 24px;
  position: relative;
  transition: all 0.3s ease-out;
}

/* Top and bottom bars */
.navicon::before,
.navicon::after {
  content: '';
  background: var(--accent-foreground);
  display: block;
  height: 2px;
  width: 100%;
  position: absolute;
  transition: all 0.3s ease-out;
}

.navicon::before { top: -7px; }
.navicon::after  { bottom: -7px; }

/* ---- Mobile ---- */
@media screen and (max-width: 640px) {
  /* Nav becomes a flex column: top-row on row 1, dropdown on row 2 */
  header nav[aria-label="Navigation principale"] {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 0;
  }

  /* Top row: logo left, hamburger right */
  header nav[aria-label="Navigation principale"] .nav-top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-s);
  }

  /* Hide desktop link lists inside the top row */
  header nav[aria-label="Navigation principale"] .nav-left-links,
  header nav[aria-label="Navigation principale"] .nav-right-links {
    display: none;
  }

  /* Reveal the hamburger icon */
  .menu-icon {
    display: flex;
  }

  /* Dropdown: shown as block but clipped to zero height by default */
  header nav[aria-label="Navigation principale"] .nav-mobile-links {
    display: block; /* override the desktop display:none */
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
  }

  /* ---- Open state ---- */
  .menu-btn:checked ~ nav[aria-label="Navigation principale"] .nav-mobile-links {
    max-height: 300px;
  }

  /* Dropdown link rows */
  header nav[aria-label="Navigation principale"] .nav-mobile-links li {
    border-top: 1px solid var(--header-nav-active-border);
    text-align: left;
  }

  header nav[aria-label="Navigation principale"] .nav-mobile-links li a {
    display: block;
    width: 100%;
    padding: var(--space-s) var(--space-s);
    font-size: var(--step-1);
    text-align: left;
  }

  /* ---- Animate burger → X ---- */
  .menu-btn:checked ~ nav[aria-label="Navigation principale"] .menu-icon .navicon {
    background: transparent;
  }

  .menu-btn:checked ~ nav[aria-label="Navigation principale"] .menu-icon .navicon::before {
    transform: rotate(-45deg);
    top: 0;
  }

  .menu-btn:checked ~ nav[aria-label="Navigation principale"] .menu-icon .navicon::after {
    transform: rotate(45deg);
    bottom: 0;
  }
}

main {
  flex: 1;
  min-height: 0;
}

/* ============================================================
   SEARCH BAR (shared)
   ============================================================ */
.header-search-wrap {
  padding: 0 0;
  flex-shrink: 0;
  background-color: var(--gradient-4);
  background: linear-gradient(180deg, var(--gradient-4) 0%, #ffffffee 100%);
}

.header-search-wrap form[role="search"] {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: var(--space-3xs) var(--space-s);
  border: 1px solid var(--accent-primary);
  border-radius: 10px;
  background: var(--bg-primary);
  width: 100%;
  color: var(--accent-primary);
}

.header-search-wrap form[role="search"] svg {
  color: var(--text-tertiary);
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  stroke: var(--accent-primary);
}

.header-search-wrap form[role="search"] input {
  flex: 1;
  border: none;
  font-size: var(--step--1);
  color: var(--text-primary);
  background: transparent;
  padding: var(--space-3xs) 0;
  font-family: inherit;
}

.header-search-wrap form[role="search"] input::placeholder {
  color: var(--accent-primary);
}

/* ============================================================
   ACCESSIBILITY UTILITIES
   ============================================================ */

/* Visually-hidden but screen-reader-accessible */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip-to-content link (visible only on keyboard focus) */
.skip-link {
  position: absolute;
  top: -999px;
  left: 1rem;
  z-index: 9999;
  padding: var(--space-2xs) var(--space-s);
  background: var(--accent-primary);
  color: var(--text-primary);
  font-size: var(--step--1);
  font-weight: 600;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
}

.skip-link:focus {
  top: 0;
}

/* Consistent keyboard-focus outline for all interactive elements */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ============================================================
   SEMANTIC HTML ELEMENTS — baseline styling shared everywhere
   ============================================================ */

fieldset {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 4px;
  padding: var(--space-m);
  margin: 0;
}

legend {
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 0 var(--space-2xs);
}

small {
  font-size: var(--step--2);
  color: var(--text-secondary);
  display: block;
  margin-top: var(--space-3xs);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--step--1);
}

th {
  text-align: left;
  font-size: var(--step--2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: var(--space-3xs) var(--space-xs);
  border-bottom: 1px solid var(--border-primary);
  color: var(--text-secondary);
  font-weight: 400;
  white-space: nowrap;
}

td {
  padding: var(--space-2xs) var(--space-xs);
  border-bottom: 1px solid var(--border-primary);
  vertical-align: top;
}

dialog {
  border: 1px solid var(--border-primary);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 0;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}

details > summary {
  cursor: pointer;
  list-style: none;
}

details > summary::-webkit-details-marker {
  display: none;
}