/* ============================================================
   Navigation Rail - Discord-inspired dark theme
   ============================================================ */

:root {
  --rail-bg: #0a1628;
  --rail-hover: #162240;
  --panel-bg: #0f2035;
  --panel-hover: #1a3050;
  --panel-active: #1e3a5f;
  --rail-width: 56px;
  --flyout-width: 224px;
  --accent-home: #00d4aa;
  --accent-progetti: #4e73df;
  --accent-analisi: #f6c23e;
  --accent-strumenti: #36b9cc;
  --accent-organizzazioni: #1cc88a;
  --accent-admin: #e74a3b;
  --accent-sviluppo: #858796;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --divider: rgba(255,255,255,0.06);
  --indicator-w: 3px;
  --transition-speed: 200ms;
}

/* ── Layout: Override SB Admin 2 ─────────────────────────── */

#wrapper {
  display: flex !important;
  min-height: 100vh;
}

#content-wrapper {
  flex: 1 1 0%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  margin-left: 0 !important;
  width: 100% !important;
}

/* Hide old sidebar completely (SB Admin 2 override) */
#accordionSidebar,
.sidebar {
  display: none !important;
  width: 0 !important;
  min-width: 0 !important;
}

/* Remove SB Admin 2 toggled body class effects */
body.sidebar-toggled #content-wrapper {
  margin-left: 0 !important;
}

/* ── Rail Aside Container ────────────────────────────────── */

.nav-rail-aside {
  display: flex;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 1030;
}

/* ── Rail Strip ──────────────────────────────────────────── */

.nav-rail {
  width: var(--rail-width);
  background: var(--rail-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0;
  overflow: visible;
  z-index: 2;
  border-right: 1px solid var(--divider);
}

.nav-rail-brand {
  width: 40px;
  height: 40px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-rail-brand img {
  width: 32px;
  height: 32px;
}

.nav-rail-divider {
  width: 32px;
  height: 1px;
  background: var(--divider);
  margin: 4px 0;
}

.nav-rail-items {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  width: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
}

.nav-rail-items::-webkit-scrollbar {
  display: none;
}

.nav-rail-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding-top: 4px;
  border-top: 1px solid var(--divider);
  width: 100%;
}

/* ── Rail Item ───────────────────────────────────────────── */

.nav-rail-item {
  position: relative;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: background var(--transition-speed), color var(--transition-speed), border-radius var(--transition-speed);
  margin: 1px 0;
}

.nav-rail-item:hover {
  background: var(--rail-hover);
  color: var(--text-primary);
  border-radius: 12px;
}

.nav-rail-item[data-active="true"] {
  color: #fff;
  border-radius: 12px;
}

/* Active indicator bar (left side) */
.nav-rail-item::before {
  content: '';
  position: absolute;
  left: -4px;
  width: var(--indicator-w);
  height: 8px;
  background: #fff;
  border-radius: 0 4px 4px 0;
  opacity: 0;
  transition: height var(--transition-speed), opacity var(--transition-speed);
}

.nav-rail-item:hover::before {
  opacity: 1;
  height: 20px;
}

.nav-rail-item[data-active="true"]::before {
  opacity: 1;
  height: 36px;
}

/* Area-specific active backgrounds */
.nav-rail-item[data-active="true"][data-area="home"] { background: color-mix(in srgb, var(--accent-home) 25%, var(--rail-bg)); }
.nav-rail-item[data-active="true"][data-area="progetti"] { background: color-mix(in srgb, var(--accent-progetti) 25%, var(--rail-bg)); }
.nav-rail-item[data-active="true"][data-area="analisi"] { background: color-mix(in srgb, var(--accent-analisi) 25%, var(--rail-bg)); }
.nav-rail-item[data-active="true"][data-area="strumenti"] { background: color-mix(in srgb, var(--accent-strumenti) 25%, var(--rail-bg)); }
.nav-rail-item[data-active="true"][data-area="organizzazioni"] { background: color-mix(in srgb, var(--accent-organizzazioni) 25%, var(--rail-bg)); }
.nav-rail-item[data-active="true"][data-area="admin"] { background: color-mix(in srgb, var(--accent-admin) 25%, var(--rail-bg)); }
.nav-rail-item[data-active="true"][data-area="sviluppo"] { background: color-mix(in srgb, var(--accent-sviluppo) 25%, var(--rail-bg)); }

/* Tooltip */
.nav-rail-item .nav-rail-tooltip {
  position: absolute;
  left: calc(100% + 8px);
  white-space: nowrap;
  background: #1e293b;
  color: #fff;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  pointer-events: none;
  opacity: 0;
  transition: opacity 150ms;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.nav-rail-item:hover .nav-rail-tooltip {
  opacity: 1;
}

/* Hide tooltip when flyout is open */
.nav-rail-aside[data-flyout-open="true"] .nav-rail-tooltip {
  display: none;
}

/* Badge on rail item */
.nav-rail-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  background: #e74a3b;
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  line-height: 16px;
  text-align: center;
  border-radius: 8px;
  padding: 0 4px;
}

/* ── Flyout Panel ────────────────────────────────────────── */

.nav-flyout {
  width: 0;
  background: var(--panel-bg);
  overflow: hidden;
  transition: width var(--transition-speed) ease-in-out;
  border-right: 1px solid var(--divider);
  display: flex;
  flex-direction: column;
}

.nav-flyout[data-open="true"] {
  width: var(--flyout-width);
}

.nav-flyout-inner {
  width: var(--flyout-width);
  min-width: var(--flyout-width);
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Flyout header */
.nav-flyout-header {
  padding: 16px 16px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-flyout-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin: 0;
}

/* Pin button */
.nav-flyout-pin {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  font-size: 0.85rem;
  transition: color 150ms, transform 150ms;
  line-height: 1;
}

.nav-flyout-pin:hover {
  color: var(--text-primary);
}

.nav-flyout-pin[data-pinned="false"] i {
  transform: rotate(45deg);
}

.nav-flyout-pin[data-pinned="true"] {
  color: var(--accent-home);
}

.nav-flyout-pin[data-pinned="true"] i {
  transform: rotate(0deg);
}

/* Flyout scroll area */
.nav-flyout-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 4px 8px 16px;
}

.nav-flyout-scroll::-webkit-scrollbar {
  width: 4px;
}

.nav-flyout-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.nav-flyout-scroll::-webkit-scrollbar-thumb {
  background: var(--divider);
  border-radius: 4px;
}

.nav-flyout-scroll::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.15);
}

/* Flyout section headings */
.nav-flyout-heading {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 12px 8px 4px;
  margin: 0;
}

.nav-flyout-subheading {
  font-size: 0.65rem;
  color: var(--text-muted);
  padding: 4px 8px 2px;
  margin: 0;
}

.nav-flyout-divider {
  height: 1px;
  background: var(--divider);
  margin: 8px 8px;
}

/* Flyout link */
.nav-flyout-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 8px;
  border-radius: 6px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.82rem;
  transition: background 100ms, color 100ms;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-flyout-link:hover {
  background: var(--panel-hover);
  color: var(--text-primary);
  text-decoration: none;
}

.nav-flyout-link.active {
  background: var(--panel-active);
  color: #fff;
}

.nav-flyout-link i {
  width: 18px;
  text-align: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.nav-flyout-link .badge {
  margin-left: auto;
  font-size: 0.65rem;
}

.nav-flyout-link .fa-external-link-alt {
  font-size: 0.6rem;
  opacity: 0.5;
}

.nav-flyout-link.disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* Flyout panel visibility - show only active area */
.nav-flyout-panel {
  display: none;
}

.nav-flyout-panel.active {
  display: block;
}

/* ── Rail Avatar ─────────────────────────────────────────── */

.nav-rail-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--rail-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  overflow: hidden;
  margin-top: 4px;
  margin-bottom: 4px;
}

.nav-rail-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Mobile ──────────────────────────────────────────────── */

@media (max-width: 767.98px) {
  .nav-rail-aside {
    display: none;
  }

  .nav-mobile-overlay {
    position: fixed;
    inset: 0;
    z-index: 1050;
    background: var(--rail-bg);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    display: flex;
    flex-direction: column;
  }

  .nav-mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--divider);
  }

  .nav-mobile-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1rem;
  }

  .nav-mobile-brand img {
    width: 28px;
    height: 28px;
  }

  .nav-mobile-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px;
  }

  .nav-mobile-body {
    flex: 1;
    overflow-y: auto;
    padding: 8px 12px 24px;
  }

  .nav-mobile-section {
    margin-bottom: 4px;
  }

  .nav-mobile-section-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 8px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border-radius: 8px;
    transition: background 100ms;
  }

  .nav-mobile-section-header:hover {
    background: var(--rail-hover);
  }

  .nav-mobile-section-header i.fa-chevron-down {
    margin-left: auto;
    font-size: 0.7rem;
    transition: transform 200ms;
    color: var(--text-muted);
  }

  .nav-mobile-section[data-expanded="true"] .fa-chevron-down {
    transform: rotate(180deg);
  }

  .nav-mobile-section-body {
    padding-left: 12px;
    overflow: hidden;
    max-height: 0;
    transition: max-height 200ms ease-in-out;
  }

  .nav-mobile-section[data-expanded="true"] .nav-mobile-section-body {
    max-height: 600px;
  }

  .nav-mobile-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 8px;
    border-radius: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
  }

  .nav-mobile-link:hover {
    background: var(--panel-hover);
    color: var(--text-primary);
    text-decoration: none;
  }

  .nav-mobile-link i {
    width: 18px;
    text-align: center;
  }

  .nav-mobile-divider {
    height: 1px;
    background: var(--divider);
    margin: 8px 0;
  }
}

/* ── Desktop: ensure hamburger hidden ────────────────────── */

@media (min-width: 768px) {
  .nav-mobile-overlay {
    display: none !important;
  }
}

/* ── SB Admin 2 topbar fixes ─────────────────────────────── */

.topbar {
  margin-left: 0 !important;
}

/* ── Topbar adjustment ───────────────────────────────────── */

.topbar .nav-rail-hamburger {
  background: none;
  border: none;
  color: #858796;
  font-size: 1.1rem;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
}

.topbar .nav-rail-hamburger:hover {
  color: #4e73df;
}