/* ============================================================
   بريد tn.sa — الهيكل: الشريط العلوي، الشريط الجانبي، الشبكة العامة
   ============================================================ */

/* ============ الشبكة ============ */
#layout {
  display: grid !important;
  grid-template-rows: var(--tn-topbar-h) minmax(0, 1fr);
  grid-template-columns: var(--tn-sidebar-w) minmax(0, 1fr);
  grid-template-areas:
    'topbar topbar'
    'sidebar main';
  block-size: 100vh;
  inline-size: 100%;
  background: var(--tn-bg);
  overflow: hidden;
  opacity: 0;
  animation: tn-failsafe 0s 1.8s forwards;
}
body.tn-ready #layout {
  opacity: 1;
  animation: none;
  transition: opacity var(--tn-d-4) var(--tn-ease);
}
@keyframes tn-failsafe { to { opacity: 1; } }

#tn-topbar { grid-area: topbar; }
#layout-sidebar { grid-area: sidebar; }
#tn-main { grid-area: main; }

/* شريط المهام الأصلي لم يعد له مكان — أزراره انتقلت */
#layout-menu { display: none !important; }

/* الشريط الجانبي مطويًّا */
body.tn-mini #layout { grid-template-columns: var(--tn-sidebar-w-mini) minmax(0, 1fr); }

/* ============ الشريط العلوي ============ */
#tn-topbar {
  display: flex;
  align-items: center;
  gap: var(--tn-gap);
  padding-inline: 8px 16px;
  background: var(--tn-bg);
  position: relative;
  z-index: 60;
}

.tn-topbar-start {
  display: flex;
  align-items: center;
  gap: 4px;
  inline-size: calc(var(--tn-sidebar-w) - 16px);
  flex: none;
}

.tn-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none !important;
  color: var(--tn-text);
  padding-inline: 4px;
  border-radius: var(--tn-r-sm);
  transition: opacity var(--tn-d-2) var(--tn-ease);
}
.tn-brand:hover { opacity: .8; }
.tn-brand-mark {
  display: grid;
  place-items: center;
  inline-size: 34px;
  block-size: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, #1a73e8, #0b57d0 55%, #7b1fa2);
  color: #fff;
  box-shadow: var(--tn-e1);
}
.tn-brand-mark .tn-i { inline-size: 20px; block-size: 20px; }
.tn-brand-text { display: flex; align-items: baseline; gap: 5px; line-height: 1; }
.tn-brand-name { font-size: 20px; font-weight: 600; letter-spacing: -.2px; }
.tn-brand-domain {
  font-size: 13px;
  font-weight: 500;
  color: var(--tn-text-3);
  direction: ltr;
}

/* ============ أزرار الأيقونات ============ */
.tn-iconbtn {
  --tn-btn-size: 40px;
  position: relative;
  display: grid;
  place-items: center;
  inline-size: var(--tn-btn-size);
  block-size: var(--tn-btn-size);
  flex: none;
  border: 0;
  padding: 0;
  border-radius: var(--tn-r-pill);
  background: transparent;
  color: var(--tn-icon);
  cursor: pointer;
  overflow: hidden;
  transition: background-color var(--tn-d-2) var(--tn-ease), color var(--tn-d-2) var(--tn-ease);
}
.tn-iconbtn:hover { background: color-mix(in srgb, var(--tn-icon) 10%, transparent); }
.tn-iconbtn:active { background: color-mix(in srgb, var(--tn-icon) 18%, transparent); }
.tn-iconbtn .tn-i { inline-size: 22px; block-size: 22px; }

.tn-refresh-btn.tn-spin .tn-i { animation: tn-spin 750ms var(--tn-ease); }
@keyframes tn-spin { to { transform: rotate(360deg); } }

/* ============ موجة اللمس ============ */
.tn-ripple { position: relative; overflow: hidden; }
.tn-ripple-wave {
  position: absolute;
  border-radius: 50%;
  background: currentColor;
  opacity: .18;
  pointer-events: none;
  transform: scale(0);
  animation: tn-ripple 600ms var(--tn-ease-out) forwards;
}
@keyframes tn-ripple {
  to { transform: scale(1); opacity: 0; }
}

/* ============ البحث ============ */
.tn-search-slot {
  flex: 1 1 auto;
  max-inline-size: 720px;
  min-inline-size: 0;
}
.searchbar.tn-search {
  position: relative !important;
  display: flex !important;
  align-items: center;
  gap: 4px;
  block-size: 48px;
  inline-size: 100%;
  padding-inline: 8px;
  border: 0 !important;
  border-radius: var(--tn-r-xl);
  background: var(--tn-surface-2) !important;
  box-shadow: none;
  transition: background-color var(--tn-d-2) var(--tn-ease),
              box-shadow var(--tn-d-2) var(--tn-ease),
              border-radius var(--tn-d-2) var(--tn-ease);
}
.searchbar.tn-search:hover { background: var(--tn-surface-3) !important; }
.searchbar.tn-search.tn-focused {
  background: var(--tn-surface) !important;
  box-shadow: var(--tn-e2);
  border-radius: var(--tn-r-sm);
}
.tn-search-lead {
  display: grid;
  place-items: center;
  inline-size: 40px;
  block-size: 40px;
  flex: none;
  color: var(--tn-icon);
}
.tn-search form { flex: 1 1 auto; min-inline-size: 0; margin: 0; }
.tn-search input[name='_q'] {
  inline-size: 100%;
  block-size: 40px;
  border: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  color: var(--tn-text);
  font-size: var(--tn-fs-lg);
  padding: 0 4px;
  outline: none;
}
.tn-search input[name='_q']::placeholder { color: var(--tn-text-3); }
.tn-search .button {
  inline-size: 40px; block-size: 40px;
  display: grid; place-items: center;
  border-radius: var(--tn-r-pill);
  color: var(--tn-icon);
  transition: background-color var(--tn-d-2) var(--tn-ease);
}
.tn-search .button:hover { background: color-mix(in srgb, var(--tn-icon) 10%, transparent); }
.tn-search a.button.search { display: none !important; }
/* elastic يرسم أيقوناته بخطّ FontAwesome داخل ::before — نصفّره ونضع قناعنا مكانه */
.tn-search .button::before {
  content: '' !important;
  font-family: inherit !important;
  inline-size: 22px; block-size: 22px;
  background-color: currentColor;
  -webkit-mask: var(--icon) center / contain no-repeat;
  mask: var(--icon) center / contain no-repeat;
}
.tn-search .button .inner {
  position: absolute !important;
  inline-size: 1px; block-size: 1px;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap;
}
.tn-search a.button.reset   { --icon: var(--i-close); }
.tn-search a.button.options { --icon: var(--i-tune); }
/* زرّ المسح يظهر فقط حين يوجد نصّ بحث */
.tn-search a.button.reset { opacity: 0; pointer-events: none; transition: opacity var(--tn-d-2) var(--tn-ease); }
.tn-search.tn-has-query a.button.reset { opacity: 1; pointer-events: auto; }

/* ============ أدوات اليسار ============ */
.tn-topbar-end {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: none;
  margin-inline-start: auto;
}
.tn-account-btn {
  inline-size: 44px; block-size: 44px;
  display: grid; place-items: center;
  border: 0; background: transparent; cursor: pointer;
  border-radius: var(--tn-r-pill);
  transition: background-color var(--tn-d-2) var(--tn-ease);
}
.tn-account-btn:hover { background: color-mix(in srgb, var(--tn-icon) 10%, transparent); }

.tn-avatar {
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  font-weight: 600;
  line-height: 1;
  flex: none;
  user-select: none;
  letter-spacing: .3px;
}

/* ============ اللوحات المنبثقة ============ */
.tn-panel {
  position: absolute;
  inset-block-start: calc(var(--tn-topbar-h) - 6px);
  inset-inline-end: 12px;
  min-inline-size: 300px;
  padding: 12px;
  background: var(--tn-surface);
  border-radius: var(--tn-r-xl);
  box-shadow: var(--tn-e3);
  z-index: 80;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(.97);
  transform-origin: top var(--tn-panel-origin, left);
  transition: opacity var(--tn-d-2) var(--tn-ease),
              transform var(--tn-d-3) var(--tn-ease-out),
              visibility 0s linear var(--tn-d-3);
}
.tn-panel.open {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity var(--tn-d-2) var(--tn-ease),
              transform var(--tn-d-3) var(--tn-ease-out),
              visibility 0s;
}
.tn-account-head { display: grid; justify-items: center; gap: 6px; padding: 14px 8px 10px; }
.tn-account-head .tn-avatar { margin-block-end: 6px; }
.tn-account-name { font-size: var(--tn-fs-lg); font-weight: 600; color: var(--tn-text); }
.tn-account-mail { font-size: var(--tn-fs-md); color: var(--tn-text-2); direction: ltr; }
.tn-panel-actions { display: grid; justify-items: center; padding-block: 8px 12px; }
.tn-pill-btn {
  padding: 9px 20px;
  border: 1px solid var(--tn-divider);
  border-radius: var(--tn-r-pill);
  background: transparent;
  color: var(--tn-text);
  font-size: var(--tn-fs-md);
  font-family: inherit;
  cursor: pointer;
  transition: background-color var(--tn-d-2) var(--tn-ease), border-color var(--tn-d-2) var(--tn-ease);
}
.tn-pill-btn:hover { background: var(--tn-surface-2); border-color: var(--tn-outline); }
.tn-panel-divider { block-size: 1px; background: var(--tn-divider); margin: 4px -12px; }
.tn-panel-item {
  display: flex; align-items: center; gap: 12px;
  inline-size: 100%;
  padding: 12px;
  border: 0; background: transparent;
  color: var(--tn-text);
  font-size: var(--tn-fs-md);
  font-family: inherit;
  text-align: start;
  border-radius: var(--tn-r-md);
  cursor: pointer;
  transition: background-color var(--tn-d-2) var(--tn-ease);
}
.tn-panel-item:hover { background: var(--tn-surface-2); }
.tn-panel-item .tn-i { color: var(--tn-icon); }

.tn-apps { display: grid; grid-template-columns: repeat(3, 88px); gap: 4px; min-inline-size: 0; }
.tn-app-tile {
  display: grid; justify-items: center; gap: 8px;
  padding: 14px 6px;
  border: 0; background: transparent;
  border-radius: var(--tn-r-md);
  color: var(--tn-text);
  font-size: var(--tn-fs-sm);
  font-family: inherit;
  cursor: pointer;
  transition: background-color var(--tn-d-2) var(--tn-ease), transform var(--tn-d-2) var(--tn-ease-spring);
}
.tn-app-tile:hover { background: var(--tn-surface-2); transform: translateY(-2px); }
.tn-app-ico {
  display: grid; place-items: center;
  inline-size: 40px; block-size: 40px;
  border-radius: 50%;
  background: var(--tn-surface-2);
  color: var(--tn-primary);
}

/* ============ الشريط الجانبي ============ */
#layout-sidebar {
  inline-size: auto !important;
  max-inline-size: none !important;
  min-inline-size: 0 !important;
  border: 0 !important;
  background: var(--tn-bg) !important;
  display: flex !important;
  flex-direction: column;
  overflow: hidden;
  padding-inline-end: 0;
  transition: none;
}
#layout-sidebar > .header { display: none !important; }
#layout-sidebar .footer { border: 0 !important; background: transparent !important; }

.tn-compose-wrap { padding: 0 8px 12px 8px; }
a.tn-compose {
  display: inline-flex !important;
  align-items: center;
  gap: 12px;
  block-size: 56px;
  min-inline-size: 140px;
  padding-inline: 20px 24px;
  border-radius: var(--tn-r-lg);
  background: var(--tn-primary-container) !important;
  color: var(--tn-on-primary-container) !important;
  font-size: var(--tn-fs-md);
  font-weight: 500;
  text-decoration: none !important;
  box-shadow: var(--tn-e1);
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--tn-d-3) var(--tn-ease),
              background-color var(--tn-d-2) var(--tn-ease),
              min-inline-size var(--tn-d-4) var(--tn-ease),
              padding var(--tn-d-4) var(--tn-ease);
}
a.tn-compose:hover { box-shadow: var(--tn-e2); background: color-mix(in srgb, var(--tn-primary-container) 88%, var(--tn-text)) !important; }
a.tn-compose:active { box-shadow: var(--tn-e1); }
a.tn-compose .tn-compose-ico { inline-size: 24px; block-size: 24px; transition: transform var(--tn-d-3) var(--tn-ease-spring); }
a.tn-compose:hover .tn-compose-ico { transform: rotate(-12deg) scale(1.06); }
.tn-compose-label { white-space: nowrap; transition: opacity var(--tn-d-2) var(--tn-ease); }

body.tn-mini a.tn-compose { min-inline-size: 56px; padding-inline: 16px; }
body.tn-mini .tn-compose-label { opacity: 0; inline-size: 0; overflow: hidden; }

/* قائمة المجلّدات */
#folderlist-content { padding-inline: 0 8px; overflow-y: auto; }
#mailboxlist { border: 0 !important; background: transparent !important; }
#mailboxlist li {
  border: 0 !important;
  background: transparent !important;
  margin-block-end: 1px;
}
#mailboxlist li > a {
  display: flex !important;
  align-items: center;
  gap: 18px;
  block-size: 32px;
  padding-inline: 20px 12px !important;
  border-start-start-radius: 0;
  border-end-start-radius: 0;
  border-start-end-radius: var(--tn-r-lg);
  border-end-end-radius: var(--tn-r-lg);
  color: var(--tn-text-2) !important;
  font-size: var(--tn-fs-md);
  font-weight: 400;
  text-decoration: none !important;
  position: relative;
  overflow: hidden;
  transition: background-color var(--tn-d-2) var(--tn-ease), color var(--tn-d-2) var(--tn-ease);
}
#mailboxlist li > a:hover { background: var(--tn-surface-3) !important; }
#mailboxlist li.selected > a,
#mailboxlist li.selected > a:hover {
  background: var(--tn-selected) !important;
  color: var(--tn-on-selected) !important;
  font-weight: 600;
}
#mailboxlist .tn-folder-ico { inline-size: 20px; block-size: 20px; flex: none; }
#mailboxlist li > a > span:not(.tn-i):not(.unreadcount) {
  flex: 0 1 auto;
  min-inline-size: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#mailboxlist li > a::before { display: none !important; }
#mailboxlist .unreadcount {
  margin-inline-start: auto;
  background: transparent !important;
  color: inherit !important;
  font-size: var(--tn-fs-sm);
  font-weight: 600;
  padding: 0 !important;
  min-inline-size: auto !important;
}
body.tn-mini #mailboxlist li > a { justify-content: center; gap: 0; padding-inline: 0 !important; border-radius: var(--tn-r-lg); margin-inline: 8px; }
body.tn-mini #mailboxlist li > a span:not(.tn-i) { display: none; }

/* الحصّة */
#layout-sidebar .footer { padding: 8px 20px 12px; }
#quotadisplay { color: var(--tn-text-3); font-size: var(--tn-fs-sm); }

/* ============ المنطقة الرئيسية ============ */
#tn-main {
  display: flex;
  min-inline-size: 0;
  min-block-size: 0;
  background: var(--tn-surface);
  border-start-start-radius: var(--tn-r-lg);
  border-start-end-radius: var(--tn-r-lg);
  margin-inline-end: 0;
  overflow: hidden;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--tn-divider) 60%, transparent);
}

#layout-list {
  flex: 1 1 42%;
  min-inline-size: 0;
  border: 0 !important;
  background: var(--tn-surface) !important;
  display: flex !important;
  flex-direction: column;
}
#layout-content {
  flex: 1 1 58%;
  min-inline-size: 0;
  border: 0 !important;
  border-inline-start: 1px solid var(--tn-divider) !important;
  background: var(--tn-surface) !important;
}

/* شاشة ضيّقة: القائمة تملأ المساحة ولوحة القراءة تنزلق فوقها */
@media (max-width: 1200px) {
  #layout-content {
    position: absolute;
    inset: 0;
    z-index: 30;
    transform: translateX(100%);
    transition: transform var(--tn-d-4) var(--tn-ease-out);
  }
  html[dir='rtl'] #layout-content { transform: translateX(-100%); }
  #layout-content.selected { transform: none !important; }
  #tn-main { position: relative; }
}

@media (max-width: 900px) {
  #layout { grid-template-columns: 0 minmax(0, 1fr); }
  #layout-sidebar {
    position: fixed;
    inset-block: var(--tn-topbar-h) 0;
    inset-inline-start: 0;
    inline-size: var(--tn-sidebar-w);
    z-index: 70;
    background: var(--tn-surface) !important;
    box-shadow: var(--tn-e3);
    transform: translateX(-100%);
    transition: transform var(--tn-d-4) var(--tn-ease-out);
  }
  html[dir='rtl'] #layout-sidebar { inset-inline-start: auto; inset-inline-end: 0; transform: translateX(100%); }
  body.tn-mini #layout-sidebar { transform: none !important; }
  .tn-topbar-start { inline-size: auto; }
  .tn-brand-domain { display: none; }
}

/* ============ حماية: إجراءات الصفّ السريعة مخفيّة افتراضيًا ============
   tn.js يضيفها لكل صفّ؛ بدون هذا القيد تعترض النقر على الصفّ نفسه.
   طبقة tn-list.css تتولّى شكلها النهائي. */
.tn-rowactions {
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--tn-d-2) var(--tn-ease);
}
#messagelist tr:hover .tn-rowactions,
#messagelist tr:focus-within .tn-rowactions {
  opacity: 1;
  pointer-events: auto;
}