/* ============================================================
   Yria — Layout Shell (Top Navigation)
   ============================================================ */

/* ── App Shell ── */
.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--color-bg);
}

/* ── Top Navigation Bar ── */
.topnav {
  background-color: var(--color-primary);
  color: #FFFFFF;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

.topnav-inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: 0 var(--space-6);
  height: var(--topbar-height);
  max-width: 100%;
}

/* Logo */
.topnav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: #FFFFFF;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.topnav-logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.topnav-logo-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}

/* Nav menu */
.topnav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
  margin-left: var(--space-4);
}

.topnav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  height: 40px;
}

.topnav-link svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.topnav-link:hover {
  background-color: rgba(255, 255, 255, 0.10);
  color: #FFFFFF;
}

.topnav-link.active {
  background-color: rgba(255, 255, 255, 0.18);
  color: #FFFFFF;
  font-weight: var(--font-weight-semibold);
  box-shadow: inset 0 -2px 0 rgba(255, 255, 255, 0.85);
}

/* Right side — user + actions */
.topnav-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.topnav-user {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  color: #FFFFFF;
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.topnav-user:hover {
  background-color: rgba(255, 255, 255, 0.10);
}

.topnav-user-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.18);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  flex-shrink: 0;
}

.topnav-user-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.1;
}

.topnav-user-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: #FFFFFF;
}

.topnav-user-role {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.75);
}

.topnav-logout-form { margin: 0; }

.topnav-logout {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.10);
  color: #FFFFFF;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.topnav-logout:hover {
  background-color: rgba(255, 255, 255, 0.20);
}

/* Burger (mobile) */
.topnav-burger {
  display: none;
  background: transparent;
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-md);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.topnav-burger:hover {
  background-color: rgba(255, 255, 255, 0.10);
}

/* Overlay (mobile menu) */
.topnav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: calc(var(--z-sticky) - 1);
  backdrop-filter: blur(2px);
}

.topnav-overlay.overlay--visible {
  display: block;
}

/* ── Main wrapper / Content ── */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.page-content {
  background-color: var(--color-bg);
  flex: 1;
  padding: var(--space-8) var(--space-6);
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
}

/* Bandeau de titre de page */
.page-title-bar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-5) var(--space-6);
}

.page-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
  max-width: var(--content-max-width);
  margin: 0 auto;
  width: 100%;
}

.page-title:empty { display: none; }
.page-title-bar:has(.page-title:empty) { display: none; }

/* ── Page Header (utilisé dans les pages) ── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.page-header-left {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-header-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
}

.page-header-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.page-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* ── Auth Layout ── */
.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg);
  padding: var(--space-6);
}

/* ── Responsive ── */
@media (max-width: 1023px) {
  .topnav-burger {
    display: inline-flex;
    order: 1;
  }

  .topnav-logo {
    order: 2;
    margin-right: auto;
  }

  .topnav-menu {
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    right: 0;
    background: var(--color-primary);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4);
    gap: var(--space-1);
    margin: 0;
    box-shadow: 0 8px 16px rgba(0,0,0,0.15);
    transform: translateY(-110%);
    transition: transform var(--transition-base);
    z-index: var(--z-sticky);
  }

  .topnav-menu.is-open {
    transform: translateY(0);
  }

  .topnav-link {
    width: 100%;
    height: 44px;
  }

  .topnav-right {
    order: 3;
  }

  .topnav-user-info {
    display: none;
  }

  .page-content {
    padding: var(--space-6) var(--space-4);
  }

  .page-title {
    padding: var(--space-5) var(--space-4) 0;
  }
}

@media (max-width: 639px) {
  .topnav-inner {
    padding: 0 var(--space-4);
    gap: var(--space-3);
  }

  .topnav-logo-text {
    display: none;
  }

  .page-content {
    padding: var(--space-4);
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Nav-link rendu via <button> (logout en POST anti-CSRF) */
.nav-link-button {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    width: 100%;
    text-align: left;
    cursor: pointer;
    font: inherit;
    color: inherit;
}
.nav-link-button:focus {
    outline: 2px solid var(--color-primary, #0066cc);
    outline-offset: 2px;
}