/* ═══════════════════════════════════════════════
   EL NAHAS — Horizontal Top Navigation
   التابات الأفقية أعلى الصفحة
   ═══════════════════════════════════════════════ */

.shell {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-height: 100dvh;
}

.side {
  position: sticky;
  top: 0;
  z-index: 40;
  width: 100%;
  flex: 0 0 auto;
  min-width: 0;
  height: auto;
  max-height: none;
  overflow: visible;
  background: var(--surface);
  color: var(--ink);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "brand foot"
    "nav nav";
  align-items: center;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 3px 12px rgba(15, 23, 42, .06);
  transform: none;
  transition: none;
}

.side__brand {
  grid-area: brand;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 9px 16px;
  border-bottom: 0;
}

.side__logo {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  display: grid;
  place-items: center;
  font-size: 21px;
  color: var(--gold-deep);
  background: var(--gold-soft);
  border: 1px solid #FDE68A;
  border-radius: 12px;
}

.side__names {
  min-width: 0;
}

.side__names b {
  display: block;
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.side__names i {
  display: block;
  color: var(--muted);
  font-size: 11.5px;
  font-style: normal;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* تسجيل الخروج وإصدار النظام */
.side__foot {
  grid-area: foot;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 8px 14px;
  border-top: 0;
  white-space: nowrap;
}

.side__ver {
  font-size: 11px;
  color: var(--muted);
}

.side__logout {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
}

.side__logout:hover {
  background: var(--gold-soft);
  border-color: #FCD34D;
  color: var(--gold-deep);
}

/* شريط التابات الأفقي */
.side__nav {
  grid-area: nav;
  width: 100%;
  min-width: 0;
  flex: 0 0 auto;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 6px;
  padding: 8px 12px 9px;
  overflow-x: auto;
  overflow-y: hidden;
  overscroll-behavior-x: contain;
  white-space: nowrap;
  background: var(--surface);
  border-top: 1px solid var(--line2);
  scrollbar-width: thin;
  scrollbar-color: #CBD5E1 transparent;
}

.side__nav button {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: auto;
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: #475569;
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background .14s,
    color .14s,
    border-color .14s,
    box-shadow .14s;
}

.side__nav button:hover {
  background: #F1F5F9;
  color: #0F172A;
  border-color: #E2E8F0;
}

/* التبويب النشط بالذهبي */
.side__nav button.is-on {
  background: var(--gold);
  color: var(--ink);
  border-color: #E9A217;
  font-weight: 900;
  box-shadow: 0 1px 2px rgba(15, 23, 42, .08);
}

.side__nav button span {
  flex: 0 0 auto;
  min-width: 0;
  white-space: nowrap;
  overflow: visible;
  text-overflow: clip;
}

.side__nav button span:first-child {
  width: auto;
  min-width: 18px;
  text-align: center;
}

/* القائمة لم تعد درجًا جانبيًا */
.backdrop {
  display: none !important;
}

.main {
  width: 100%;
  min-width: 0;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
}

.topbar {
  position: relative;
  top: auto;
  z-index: 2;
}

/* الشاشات المتوسطة والموبايل */
@media (max-width: 900px) {
  .side,
  html[dir="rtl"] .side {
    position: sticky;
    inset: auto;
    top: 0;
    width: 100%;
    height: auto;
    max-height: none;
    overflow: visible;
    transform: none !important;
    box-shadow: 0 3px 12px rgba(15, 23, 42, .06);
  }

  .side__brand {
    padding: 8px 10px;
    gap: 8px;
  }

  .side__logo {
    width: 36px;
    height: 36px;
    flex-basis: 36px;
    font-size: 19px;
  }

  .side__names b {
    font-size: 12px;
    max-width: 46vw;
  }

  .side__names i {
    font-size: 10.5px;
    max-width: 46vw;
  }

  .side__foot {
    padding: 7px 8px;
    gap: 6px;
  }

  .side__ver {
    display: none;
  }

  .side__logout {
    font-size: 11px;
    padding: 6px 8px;
  }

  .side__nav {
    padding: 7px 8px;
    gap: 5px;
  }

  .side__nav button {
    min-height: 36px;
    padding: 7px 10px;
    font-size: 11.5px;
  }

  .burger {
    display: none !important;
  }

  .backdrop {
    display: none !important;
  }

  .topbar__title {
    font-size: 17px;
  }
}

@media (max-width: 640px) {
  .side__brand {
    padding: 7px 8px;
  }

  .side__names b {
    max-width: 43vw;
    font-size: 11px;
  }

  .side__names i {
    max-width: 43vw;
    font-size: 9.5px;
  }

  .side__nav {
    padding: 6px 7px;
    gap: 4px;
  }

  .side__nav button {
    padding: 7px 9px;
    min-height: 34px;
    font-size: 11px;
    gap: 5px;
  }

  .side__nav button span:first-child {
    min-width: 16px;
  }

  .side__foot {
    padding: 6px 7px;
  }

  .side__logout {
    font-size: 10px;
    padding: 5px 7px;
  }

  .topbar {
    gap: 7px;
    padding: 9px 10px;
  }
}