/* ═══════════════════════════════════════════════════════════════════
   LAYOUT — Sidebar, Navbar, Page Structure
   Premium Red & Black
   ═══════════════════════════════════════════════════════════════════ */

/* ── MAIN STRUCTURE ───────────────────────────────────────────────── */
.main-content {
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR ──────────────────────────────────────────────────────── */
.app-navbar {
  position: fixed;
  top: 0;
  inset-inline-start: 0;
  width: var(--sidebar-w, 260px);
  height: 100vh;
  background: var(--sidebar-bg);
  border-inline-end: 1px solid rgba(255,255,255,0.06);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  transition: width var(--transition-slow), transform var(--transition-slow);
  overflow: hidden;
}

.app-navbar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}
.app-navbar-inner::-webkit-scrollbar { width: 4px; }
.app-navbar-inner::-webkit-scrollbar-track { background: transparent; }
.app-navbar-inner::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

/* ── SIDEBAR LOGO ─────────────────────────────────────────────────── */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 1.1rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}
.sidebar-logo .logo-box {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #dc2626, #991b1b);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 1.15rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}
.sidebar-logo .logo-img {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: #050505;
  border: 1px solid rgba(255,255,255,0.08);
  display: block;
  flex-shrink: 0;
}
.sidebar-logo .logo-text .name {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  white-space: nowrap;
}
.sidebar-logo .logo-text .sub {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.45);
  white-space: nowrap;
  margin-top: 0;
}

/* ── SIDEBAR NAVIGATION ──────────────────────────────────────────── */
.sidebar-nav {
  flex: 1;
  padding: 0.75rem 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-section {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sidebar-section);
  padding: 0.6rem 0.75rem 0.35rem;
  margin-top: 0.5rem;
}
.nav-section:first-child { margin-top: 0; }

.nav-item, .nav-parent-btn {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-md);
  color: var(--sidebar-text);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-fast);
  border: none;
  background: transparent;
  cursor: pointer;
  width: 100%;
  text-align: inherit;
  font-family: inherit;
  white-space: nowrap;
  position: relative;
}
.nav-item i, .nav-parent-btn i {
  font-size: 1.05rem;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}
.nav-item:hover, .nav-parent-btn:hover {
  background: var(--sidebar-hover);
  color: var(--sidebar-text-active);
}
.nav-item:hover i, .nav-parent-btn:hover i { opacity: 1; }

.nav-item.active {
  background: var(--sidebar-active-bg);
  color: var(--sidebar-text-active);
  font-weight: 600;
}
.nav-item.active i { opacity: 1; color: #dc2626; }
.nav-item.active::before {
  content: '';
  position: absolute;
  inset-inline-start: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--sidebar-active-border);
  border-radius: 0 3px 3px 0;
}
html[dir="rtl"] .nav-item.active::before {
  border-radius: 3px 0 0 3px;
}

/* Parent menu */
.nav-parent-btn .arrow {
  margin-inline-start: auto;
  font-size: 0.55rem;
  opacity: 0.4;
  transition: transform var(--transition-fast);
}
.nav-group.open > .nav-parent-btn .arrow {
  transform: rotate(180deg);
}
.nav-group.open > .nav-parent-btn {
  color: var(--sidebar-text-active);
}
.nav-group.open > .nav-parent-btn.active {
  background: var(--sidebar-active-bg);
}

.nav-submenu {
  display: none;
  padding-inline-start: 0.5rem;
  margin-top: 2px;
}
.nav-group.open .nav-submenu { display: block; }

.nav-subitem {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.75rem;
  padding-inline-start: 2.2rem;
  border-radius: var(--radius-sm);
  color: var(--sidebar-text);
  font-size: 0.8rem;
  font-weight: 400;
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
  white-space: nowrap;
}
.nav-subitem i { font-size: 0.85rem; width: 18px; text-align: center; opacity: 0.5; flex-shrink: 0; }
.nav-subitem:hover {
  background: var(--sidebar-hover);
  color: var(--sidebar-text-active);
}
.nav-subitem.active {
  color: #dc2626;
  font-weight: 600;
}
.nav-subitem.active i { opacity: 1; color: #dc2626; }

/* ── NAV RIGHT (bottom section) ───────────────────────────────────── */
.nav-right {
  padding: 0.75rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.profile-dropdown { flex: 1; }
.profile-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
  color: #d4d4d8;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 100%;
  text-align: inherit;
  font-family: inherit;
}
.profile-btn::after { display: none; } /* hide bootstrap caret */
.profile-btn:hover { background: rgba(255,255,255,0.06); }
.p-avatar {
  width: 30px; height: 30px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #dc2626, #991b1b);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* Profile dropdown menu */
.profile-dropdown .dropdown-menu {
  background: var(--neutral-900);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  padding: 0.4rem;
  min-width: 180px;
}
.profile-dropdown .dropdown-item {
  color: #d4d4d8;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
}
.profile-dropdown .dropdown-item:hover {
  background: rgba(220, 38, 38, 0.15);
  color: #fff;
}
.profile-dropdown .dropdown-divider {
  border-color: rgba(255,255,255,0.08);
}

/* ── SIDEBAR TOGGLE (mobile) ──────────────────────────────────────── */
.sidebar-toggle {
  position: fixed;
  top: 0.75rem;
  inset-inline-start: 0.75rem;
  z-index: 1100;
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0;
}

/* ── PAGE BODY ────────────────────────────────────────────────────── */
.page-body {
  flex: 1;
  margin-inline-start: var(--sidebar-w, 260px);
  padding: 1.5rem;
  min-height: 100vh;
  transition: margin var(--transition-slow);
}

/* ── FOOTER ───────────────────────────────────────────────────────── */
.app-footer {
  text-align: center;
  font-size: 0.78rem;
  padding: 0.8rem 0;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}

/* ── SIDEBAR COLLAPSED (desktop) ──────────────────────────────────── */
#sidebar.collapsed { width: 64px !important; }
#sidebar.collapsed .sidebar-logo .logo-text { display: none; }
#sidebar.collapsed .nav-item span:not(.arrow),
#sidebar.collapsed .nav-parent-btn span:not(.arrow) { display: none; }
#sidebar.collapsed .nav-item, #sidebar.collapsed .nav-parent-btn { padding: 0.55rem; justify-content: center; }
#sidebar.collapsed .nav-section { display: none; }
#sidebar.collapsed .nav-submenu { display: none; }
#sidebar.collapsed .nav-right { flex-direction: column; }
#sidebar.collapsed .profile-btn span:not(.p-avatar) { display: none; }
#sidebar.collapsed .profile-btn { padding: 0.3rem; justify-content: center; }
#sidebar.collapsed .lang-switcher { display: none; }
#sidebar.collapsed ~ .page-body { margin-inline-start: 64px; }

/* ── RESPONSIVE ───────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .sidebar-toggle { display: flex; }

  .app-navbar {
    transform: translateX(-100%);
    box-shadow: none;
    width: 280px !important;
  }
  html[dir="rtl"] .app-navbar {
    transform: translateX(100%);
  }

  .app-navbar.open {
    transform: translateX(0) !important;
    box-shadow: var(--shadow-xl);
  }

  .page-body {
    margin-inline-start: 0 !important;
    padding-top: 3.5rem;
  }

  /* Overlay when sidebar open */
  .app-navbar.open ~ .page-body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    backdrop-filter: blur(2px);
  }
}

@media (max-width: 768px) {
  .page-body { padding: 1rem; padding-top: 3.5rem; }
}

@media (max-width: 480px) {
  .page-body { padding: 0.75rem; padding-top: 3.5rem; }
  .app-navbar { width: 260px !important; }
}

/* ── LOGIN PAGE (standalone, no sidebar) ──────────────────────────── */
body.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: #09090b;
  padding: 1rem;
  position: relative;
  overflow: hidden;
  background-image:
    radial-gradient(ellipse 70% 50% at 10% -10%, rgba(220,38,38,0.12) 0%, transparent 62%),
    radial-gradient(ellipse 55% 40% at 95% 115%, rgba(220,38,38,0.06) 0%, transparent 65%);
}

body.login-page .pass-wrap {
  width: min(420px, 100%);
  position: relative;
  z-index: 10;
}

body.login-page .card-s {
  background: #18181b;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 54px rgba(0,0,0,0.5);
  overflow: hidden;
}

body.login-page .c-head {
  background: linear-gradient(135deg, rgba(220,38,38,0.12), transparent);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 1.25rem 1.5rem;
}
body.login-page .c-head h5 { color: #fafafa; font-size: 1.1rem; }

body.login-page .c-body { padding: 1.5rem; }

body.login-page .f-label {
  color: #a1a1aa;
  font-size: 0.82rem;
  font-weight: 600;
}

body.login-page .f-input {
  background: #27272a;
  border: 1px solid rgba(255,255,255,0.12);
  color: #fafafa;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-md);
  width: 100%;
}
body.login-page .f-input:focus {
  border-color: #dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220,38,38,0.2) !important;
}

body.login-page .form-check-label { color: #a1a1aa; font-size: 0.85rem; }
body.login-page .form-check-input { accent-color: #dc2626; }

body.login-page .btn-primary-s {
  background: linear-gradient(135deg, #dc2626, #991b1b) !important;
  color: #fff !important;
  border: none !important;
  border-radius: var(--radius-md);
  padding: 0.65rem 2rem;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 4px 14px rgba(220,38,38,0.3);
  transition: all var(--transition-fast);
  width: 100%;
}
body.login-page .btn-primary-s:hover {
  box-shadow: 0 6px 20px rgba(220,38,38,0.45);
  transform: translateY(-1px);
}

body.login-page .alert-s {
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.3);
  color: #fca5a5;
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
}

body.login-page .mode-btn {
  position: absolute;
  top: 1rem;
  inset-inline-end: 1rem;
  z-index: 100;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: #a1a1aa;
}
body.login-page .mode-btn:hover {
  background: rgba(220,38,38,0.15);
  color: #dc2626;
}

#tsparticles { opacity: 0.5; }