/* YCE 統一シェル — Gmail/Calendar レイアウト + ブランドカラー（10社参考採用） */
:root {
  --yce-gmail-header-h: 4rem;
  --yce-gmail-sidebar-w: 16rem;
  --yce-chrome-bg: #ffffff;
  --yce-chrome-border: #D1DCF5;
  --yce-chrome-text: #0D1B3E;
  --yce-chrome-muted: #4A5568;
  --yce-chrome-dim: #718096;
  --yce-chrome-surface: #F0F4FF;
  --yce-chrome-surface-active: #E6F4FF;
  --yce-chrome-primary: #003087;
  --yce-chrome-primary-mid: #1a4fad;
  --yce-chrome-accent: #F5A623;
  --yce-chrome-hover: rgba(0, 48, 135, 0.06);
  --yce-chrome-hover-strong: rgba(0, 48, 135, 0.12);
  --yce-chrome-icon: #4A5568;
  --yce-chrome-search-bg: #F0F4FF;
  --yce-shell-header-h: var(--yce-gmail-header-h);
}

.yce-gmail-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--yce-chrome-bg);
  border-bottom: 1px solid var(--yce-chrome-border);
  box-shadow: none !important;
  width: 100%;
}

.yce-gmail-header.fixed,
header.fixed.yce-gmail-header,
[data-yce-student-shell-header].yce-gmail-header {
  position: fixed;
  left: 0;
  right: 0;
}

.yce-gmail-header-inner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  height: var(--yce-gmail-header-h);
  padding: 0 0.75rem 0 0.25rem;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.yce-gmail-header-left {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  flex-shrink: 0;
  min-width: 0;
}

.yce-gmail-header-center {
  flex: 1 1 auto;
  min-width: 0;
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 0.5rem;
}

.yce-gmail-header-right {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  flex-shrink: 0;
  margin-left: auto;
}

.yce-gmail-header-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  min-width: 2.5rem;
  min-height: 2.5rem;
  border: 0;
  border-radius: 9999px;
  background: transparent;
  color: var(--yce-chrome-icon);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.yce-gmail-header-btn:hover,
.yce-gmail-header-btn:focus-visible {
  background: var(--yce-chrome-hover);
  outline: none;
  color: var(--yce-chrome-primary);
}

.yce-gmail-header-btn--login {
  color: var(--yce-chrome-primary);
  background: var(--yce-chrome-hover);
}

.yce-gmail-header-btn--login:hover,
.yce-gmail-header-btn--login:focus-visible {
  background: var(--yce-chrome-hover-strong);
}

#menuBtn.yce-gmail-header-btn,
[data-yce-student-menu-btn].yce-gmail-header-btn {
  color: var(--yce-chrome-text);
}

.yce-gmail-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.375rem 0.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  min-width: 0;
  flex-shrink: 0;
}

.yce-gmail-logo:hover {
  background: var(--yce-chrome-hover);
}

.yce-gmail-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  min-width: 2rem;
  min-height: 2rem;
  border-radius: 0.5rem;
  background: var(--yce-chrome-primary);
  flex-shrink: 0;
}

.yce-gmail-logo-text {
  font-size: 1.125rem;
  font-weight: 900;
  color: var(--yce-chrome-primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.yce-gmail-logo-text span {
  color: var(--yce-chrome-accent);
}

.yce-gmail-search {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  width: 100%;
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 1rem;
  height: 2.75rem;
  border-radius: 9999px;
  background: var(--yce-chrome-search-bg);
  border: 1px solid var(--yce-chrome-border);
  transition: background 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.yce-gmail-search:focus-within {
  background: var(--yce-chrome-bg);
  border-color: var(--yce-chrome-primary);
  box-shadow: 0 0 0 3px rgba(0, 48, 135, 0.12);
}

.yce-gmail-search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  font-size: 0.9375rem;
  color: var(--yce-chrome-text);
  outline: none;
}

.yce-gmail-search input::placeholder {
  color: var(--yce-chrome-muted);
}

.yce-gmail-search-icon {
  color: var(--yce-chrome-muted);
  flex-shrink: 0;
}

.yce-gmail-header-utils {
  display: flex;
  align-items: center;
  gap: 0.0625rem;
}

#yceHeaderAuth {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  margin-left: 0.125rem;
}

.yce-user-menu-trigger {
  border-radius: 9999px !important;
  padding: 3px !important;
}

.yce-user-avatar--sm {
  width: 2rem !important;
  height: 2rem !important;
  min-width: 2rem !important;
  min-height: 2rem !important;
  font-size: 0.8125rem !important;
}

/* サイドバー（公開・ワークスペース共通） */
#mobileMenu.yce-public-drawer.yce-gmail-sidebar,
#studentSidebar.yce-gmail-sidebar-pane {
  top: var(--yce-gmail-header-h);
  width: var(--yce-gmail-sidebar-w);
  background: var(--yce-chrome-bg);
  border-right: 1px solid var(--yce-chrome-border);
  box-shadow: none;
}

#mobileMenu.yce-public-drawer.yce-gmail-sidebar {
  padding: 0.5rem 0.75rem 1rem;
}

.yce-gmail-sidebar-compose {
  padding: 0.5rem 0.5rem 0.75rem;
  flex-shrink: 0;
}

.yce-gmail-compose-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  width: auto;
  max-width: 100%;
  padding: 0.875rem 1.5rem 0.875rem 1rem;
  border-radius: 9999px;
  background: var(--yce-chrome-surface-active);
  color: var(--yce-chrome-primary);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(0, 48, 135, 0.1);
  transition: box-shadow 0.15s ease, background 0.15s ease;
}

.yce-gmail-compose-btn:hover {
  background: #d2e3fc;
  box-shadow: 0 2px 6px rgba(0, 48, 135, 0.14);
}

.yce-gmail-drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.25rem 0.5rem 0.75rem;
  flex-shrink: 0;
}

.yce-gmail-drawer-head-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--yce-chrome-muted);
}

.yce-gmail-sidebar nav,
#studentSidebar nav {
  padding: 0.25rem 0 !important;
}

.yce-gmail-nav-link,
.sidebar-link.yce-gmail-nav-link {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.5rem 0.875rem;
  margin: 0.125rem 0;
  border-radius: 0 9999px 9999px 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--yce-chrome-text);
  text-decoration: none;
  transition: background 0.12s ease, color 0.12s ease;
  min-height: 2.5rem;
}

.yce-gmail-nav-link:hover,
.sidebar-link.yce-gmail-nav-link:hover {
  background: var(--yce-chrome-surface);
  color: var(--yce-chrome-text);
}

.yce-gmail-nav-link.active,
.sidebar-link.yce-gmail-nav-link.active {
  background: var(--yce-chrome-surface-active);
  color: var(--yce-chrome-primary);
  font-weight: 700;
}

.yce-gmail-nav-link.active i,
.yce-gmail-nav-link.active .text-yce-muted,
.sidebar-link.yce-gmail-nav-link.active i {
  color: var(--yce-chrome-primary) !important;
}

.yce-gmail-nav-link i,
.sidebar-link.yce-gmail-nav-link i {
  color: var(--yce-chrome-dim);
}

.yce-gmail-nav-link.yce-nav-link-locked,
.sidebar-link.yce-gmail-nav-link.yce-nav-link-locked,
button.yce-gmail-nav-link.yce-nav-link-locked,
span.yce-gmail-nav-link.yce-nav-link-locked,
.yce-nav-link-disabled {
  color: #A0AEC0 !important;
  font-weight: 400;
  cursor: default;
  pointer-events: none;
  user-select: none;
}

.yce-gmail-nav-link.yce-nav-link-locked i,
.sidebar-link.yce-gmail-nav-link.yce-nav-link-locked i,
button.yce-gmail-nav-link.yce-nav-link-locked i,
span.yce-gmail-nav-link.yce-nav-link-locked i,
.yce-nav-link-disabled i {
  color: #CBD5E0 !important;
}

.yce-nav-section-locked .yce-gmail-nav-link:hover,
.yce-nav-section-locked .sidebar-link.yce-gmail-nav-link:hover {
  background: transparent !important;
  color: #A0AEC0 !important;
}

.yce-nav-section-hint {
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  margin-left: 0.35rem;
  color: #A0AEC0;
  font-size: 0.625rem;
}

.admin-link {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.5rem 0.875rem;
  margin: 0.125rem 0;
  border-radius: 0 9999px 9999px 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--yce-chrome-text);
  text-decoration: none;
  transition: background 0.12s ease, color 0.12s ease;
  min-height: 2.5rem;
}

.admin-link:hover {
  background: var(--yce-chrome-surface);
}

.admin-link.active {
  background: var(--yce-chrome-surface-active);
  color: var(--yce-chrome-primary);
  font-weight: 700;
}

.yce-gmail-nav-section {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--yce-chrome-dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.75rem 0.875rem 0.25rem;
}

.yce-gmail-drawer-profile {
  padding: 0.75rem 0.875rem;
  margin-bottom: 0.25rem;
  border-bottom: 1px solid var(--yce-chrome-border);
}

/* ワークスペース左サイドバー位置 */
@media (min-width: 768px) {
  body.yce-student-sidebar-pinned #studentSidebar.student-mobile-menu,
  body.yce-club-sidebar-pinned #sidebar.mobile-menu,
  body.yce-admin-sidebar-pinned #adminSidebar.admin-mobile-menu {
    top: var(--yce-gmail-header-h) !important;
    height: calc(100dvh - var(--yce-gmail-header-h)) !important;
  }

  body.yce-public-sidebar-layout:not(.yce-public-sidebar-collapsed),
  body.yce-public-index-layout:not(.yce-public-sidebar-collapsed) {
    padding-left: var(--yce-gmail-sidebar-w);
  }

  body.yce-public-sidebar-layout #mobileMenu.yce-public-drawer.open,
  body.yce-public-index-layout #mobileMenu.yce-public-drawer.open {
    transform: translateX(0) !important;
    pointer-events: auto !important;
    visibility: visible !important;
  }

  body.yce-public-sidebar-layout.yce-public-sidebar-collapsed #mobileMenu.yce-public-drawer,
  body.yce-public-index-layout.yce-public-sidebar-collapsed #mobileMenu.yce-public-drawer {
    transform: translateX(-100%) !important;
  }

  body.yce-public-sidebar-layout .yce-gmail-drawer-head,
  body.yce-public-index-layout .yce-gmail-drawer-head {
    display: none;
  }

  body.yce-public-sidebar-layout #ycePublicNavBackdrop,
  body.yce-public-index-layout #ycePublicNavBackdrop {
    display: none !important;
  }
}

@media (max-width: 767px) {
  .yce-gmail-header-center {
    display: none;
  }

  .yce-gmail-logo-text {
    display: none;
  }
}