/* =========================================================
   CS SIDEBAR — "SLEEK" LAYOUT VARIANT
   Engine 4.1 compliant.
   ✔ Inherits width/position/display from cs-dashboard-core.css
   ✔ Only defines variant visuals + component styling
   ❌ No !important on layout props
   ❌ No width / position / margin-left overrides
   ❌ No root-level gap (breaks core's padding rhythm)
   ========================================================= */

/* ---------------------------------------------------------
   BACKGROUND LAYER
   Applied via ::before so it never touches core's box model.
   --------------------------------------------------------- */

.cs-sidebar {
    position: relative;       /* core already sets this, but explicit for ::before */
    isolation: isolate;       /* keep ::before below content */
}

.cs-sidebar::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;

    background:
        radial-gradient(
            circle at 0% 0%,
            rgba(245, 179, 1, 0.10),
            transparent 55%
        ),
        radial-gradient(
            circle at 100% 100%,
            rgba(157, 77, 255, 0.08),
            transparent 55%
        ),
        linear-gradient(
            180deg,
            rgba(18, 10, 31, 0.96),
            rgba(15, 10, 26, 0.98)
        );

    /* Subtle grid overlay */
    background-image:
        linear-gradient(rgba(245, 179, 1, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 179, 1, 0.03) 1px, transparent 1px),
        radial-gradient(circle at 0% 0%, rgba(245, 179, 1, 0.10), transparent 55%),
        radial-gradient(circle at 100% 100%, rgba(157, 77, 255, 0.08), transparent 55%),
        linear-gradient(180deg, rgba(18, 10, 31, 0.96), rgba(15, 10, 26, 0.98));
    background-size: 40px 40px, 40px 40px, 100% 100%, 100% 100%, 100% 100%;

    border-right: 1px solid rgba(245, 179, 1, 0.10);

    box-shadow:
        inset 1px 0 rgba(255, 255, 255, 0.04),
        inset 0 0 80px rgba(245, 179, 1, 0.04);

    pointer-events: none;
}

/* Scrollbar — visible on the aside itself */
.cs-sidebar {
    scrollbar-width: thin;
    scrollbar-color: rgba(245, 179, 1, 0.15) transparent;
}

.cs-sidebar::-webkit-scrollbar {
    width: 6px;
}

.cs-sidebar::-webkit-scrollbar-thumb {
    background: rgba(245, 179, 1, 0.15);
    border-radius: 999px;
}

.cs-sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(245, 179, 1, 0.30);
}

/* ---------------------------------------------------------
   STRUCTURE — flex layout
   Remove gap so brand / nav / footer stack tightly.
   --------------------------------------------------------- */

.cs-sidebar {
    display: flex;
    flex-direction: column;
}

/* =========================================================
   BRAND
   ========================================================= */

.cs-sidebar-brand {
    padding: 4px 0 22px;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    flex-shrink: 0;
}

.cs-sidebar-brand::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 15%;
    right: 15%;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(245, 179, 1, 0.55),
        transparent
    );
}

.cs-sidebar-brand img {
    max-width: 44px;
    height: auto;
    filter: drop-shadow(0 4px 12px rgba(245, 179, 1, 0.25));
    transition: max-width 0.35s ease;
}

/* =========================================================
   NAVIGATION
   ========================================================= */

.cs-sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    min-height: 0;   /* allow overflow scroll on parent */
}

/* Section label — "Main" */
.cs-nav-label {
    padding: 20px 12px 8px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(245, 179, 1, 0.55);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Nav item base */
.cs-nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 14px;
    border-radius: 12px;

    color: #BBBBBB;
    font-size: 0.92rem;
    font-weight: 500;
    text-decoration: none;

    position: relative;
    white-space: nowrap;
    overflow: visible;    /* let tooltip escape */
    flex-shrink: 0;

    transition: all 0.25s ease;
}

.cs-nav-item i {
    font-size: 1.05rem;
    min-width: 20px;
    display: inline-flex;
    justify-content: center;
    color: rgba(255, 255, 255, 0.55);
    transition: all 0.25s ease;
    flex-shrink: 0;
}

.cs-nav-item span:not(.cs-nav-badge) {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Badge */
.cs-nav-badge {
    margin-left: auto;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 700;
    background: rgba(245, 179, 1, 0.14);
    color: #F5B301;
    border: 1px solid rgba(245, 179, 1, 0.18);
    transition: all 0.25s ease;
    flex-shrink: 0;
}

/* Hover */
.cs-nav-item:hover {
    background: rgba(245, 179, 1, 0.08);
    color: #FFFFFF;
    transform: translateX(3px);
}

.cs-nav-item:hover i {
    color: #F5B301;
}

.cs-nav-item:hover .cs-nav-badge {
    background: rgba(245, 179, 1, 0.24);
    border-color: rgba(245, 179, 1, 0.35);
}

/* Active */
.cs-nav-item.active {
    background: linear-gradient(
        90deg,
        rgba(245, 179, 1, 0.14),
        rgba(255, 140, 66, 0.06)
    );
    color: #FFFFFF;
    box-shadow:
        inset 0 0 0 1px rgba(245, 179, 1, 0.18),
        0 4px 18px rgba(245, 179, 1, 0.08);
}

.cs-nav-item.active i {
    color: #F5B301;
    filter: drop-shadow(0 0 6px rgba(245, 179, 1, 0.45));
}

.cs-nav-item.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 22px;
    border-radius: 0 999px 999px 0;
    background: linear-gradient(180deg, #F5B301, #FF8C42);
    box-shadow: 0 0 12px rgba(245, 179, 1, 0.55);
}

/* Logout */
.cs-nav-logout {
    margin-top: 8px;
    color: rgba(255, 140, 66, 0.75);
    border-top: 1px solid rgba(255, 140, 66, 0.08);
    padding-top: 14px;
    border-radius: 0;
    margin-left: -14px;
    margin-right: -14px;
    padding-left: 28px;
    padding-right: 28px;
}

.cs-nav-logout i {
    color: rgba(255, 140, 66, 0.75);
}

.cs-nav-logout:hover {
    background: rgba(255, 140, 66, 0.06);
    color: #FF8C42;
    transform: none;
}

.cs-nav-logout:hover i {
    color: #FF8C42;
}

/* =========================================================
   FOOTER — LAYOUT SWITCHER
   ========================================================= */

.cs-sidebar-footer {
    margin-top: 16px;
    padding-top: 18px;
    border-top: 1px solid rgba(245, 179, 1, 0.10);
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex-shrink: 0;
}

.cs-footer-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(245, 179, 1, 0.55);
    padding: 0 4px;
}

.cs-layout-switcher {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.cs-layout-btn {
    display: flex;
    align-items: center;
    gap: 10px;

    padding: 10px 12px;

    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;

    color: #BBBBBB;
    font-size: 0.82rem;
    font-weight: 500;
    text-align: left;

    cursor: pointer;
    transition: all 0.25s ease;

    position: relative;
    overflow: visible;
}

.cs-layout-btn i {
    font-size: 0.9rem;
    min-width: 16px;
    color: rgba(255, 255, 255, 0.45);
    transition: all 0.25s ease;
    flex-shrink: 0;
}

.cs-layout-btn .cs-layout-label {
    flex: 1;
}

.cs-layout-btn .cs-layout-shortcut {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.28);
    padding: 2px 6px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.05);
    flex-shrink: 0;
}

.cs-layout-btn:hover {
    background: rgba(245, 179, 1, 0.06);
    border-color: rgba(245, 179, 1, 0.20);
    color: #FFFFFF;
}

.cs-layout-btn:hover i {
    color: #F5B301;
}

.cs-layout-btn:hover .cs-layout-shortcut {
    color: rgba(245, 179, 1, 0.75);
    border-color: rgba(245, 179, 1, 0.20);
}

.cs-layout-btn.active {
    background: linear-gradient(
        90deg,
        rgba(245, 179, 1, 0.14),
        rgba(255, 140, 66, 0.06)
    );
    border-color: rgba(245, 179, 1, 0.35);
    color: #FFFFFF;
    box-shadow:
        inset 0 0 0 1px rgba(245, 179, 1, 0.15),
        0 4px 14px rgba(245, 179, 1, 0.10);
}

.cs-layout-btn.active i {
    color: #F5B301;
    filter: drop-shadow(0 0 6px rgba(245, 179, 1, 0.45));
}

.cs-layout-btn.active .cs-layout-shortcut {
    color: #F5B301;
    background: rgba(245, 179, 1, 0.10);
    border-color: rgba(245, 179, 1, 0.20);
}

/* Status pill */
.cs-layout-status {
    display: flex;
    align-items: center;
    gap: 8px;

    padding: 8px 12px;
    border-radius: 10px;

    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.06);

    font-size: 0.72rem;
    color: #BBBBBB;
}

.cs-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #22A65E;
    box-shadow: 0 0 8px rgba(34, 166, 94, 0.7);
    animation: csStatusPulse 2s ease-in-out infinite;
    flex-shrink: 0;
}

.cs-status-label {
    color: rgba(255, 255, 255, 0.35);
}

#csCurrentLayoutLabel {
    color: #F5B301;
    font-weight: 600;
    text-transform: capitalize;
}

@keyframes csStatusPulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.5; }
}

/* =========================================================
   COLLAPSED STATE — icon rail
   ========================================================= */

.cs-dashboard--collapsed .cs-sidebar .cs-sidebar-brand {
    padding-bottom: 18px;
}

.cs-dashboard--collapsed .cs-sidebar .cs-sidebar-brand img {
    max-width: 34px;
}

.cs-dashboard--collapsed .cs-sidebar .cs-nav-label {
    display: none;
}

.cs-dashboard--collapsed .cs-sidebar .cs-nav-item {
    justify-content: center;
    padding: 12px;
    gap: 0;
    overflow: visible;
}

.cs-dashboard--collapsed .cs-sidebar .cs-nav-item span:not(.cs-nav-badge) {
    display: none;
}

.cs-dashboard--collapsed .cs-sidebar .cs-nav-badge {
    position: absolute;
    top: 6px;
    right: 6px;
    padding: 2px 5px;
    font-size: 0.6rem;
    min-width: 16px;
    text-align: center;
    margin: 0;
}

.cs-dashboard--collapsed .cs-sidebar .cs-nav-item i {
    font-size: 1.15rem;
}

.cs-dashboard--collapsed .cs-sidebar .cs-nav-item.active::before {
    height: 16px;
}

.cs-dashboard--collapsed .cs-sidebar .cs-nav-logout {
    margin-left: -14px;
    margin-right: -14px;
    padding: 14px 0 8px;
    text-align: center;
}

.cs-dashboard--collapsed .cs-sidebar .cs-footer-label {
    display: none;
}

.cs-dashboard--collapsed .cs-sidebar .cs-layout-btn {
    justify-content: center;
    padding: 10px;
    width: 100%;
    min-height: 44px;
}

.cs-dashboard--collapsed .cs-sidebar .cs-layout-btn .cs-layout-label,
.cs-dashboard--collapsed .cs-sidebar .cs-layout-btn .cs-layout-shortcut {
    display: none;
}

.cs-dashboard--collapsed .cs-sidebar .cs-layout-btn i {
    font-size: 1rem;
}

.cs-dashboard--collapsed .cs-sidebar .cs-layout-status {
    display: none;
}

/* =========================================================
   TOOLTIPS (collapsed state only)
   Uses data-tip="..." on nav items and layout buttons.
   ========================================================= */

.cs-dashboard--collapsed .cs-sidebar .cs-nav-item,
.cs-dashboard--collapsed .cs-sidebar .cs-layout-btn {
    position: relative;
}

.cs-dashboard--collapsed .cs-sidebar .cs-nav-item::after,
.cs-dashboard--collapsed .cs-sidebar .cs-layout-btn::after {
    content: attr(data-tip);
    position: absolute;
    left: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%) translateX(-4px);

    background: rgba(10, 6, 18, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #FFFFFF;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.72rem;
    font-weight: 500;
    white-space: nowrap;

    border: 1px solid rgba(245, 179, 1, 0.20);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);

    opacity: 0;
    pointer-events: none;
    transition: all 0.25s ease;
    z-index: 10000;
}

/* Small arrow */
.cs-dashboard--collapsed .cs-sidebar .cs-nav-item::before,
.cs-dashboard--collapsed .cs-sidebar .cs-layout-btn::before {
    content: "";
    position: absolute;
    left: calc(100% + 4px);
    top: 50%;
    transform: translateY(-50%) translateX(-4px);

    width: 0;
    height: 0;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    border-right: 6px solid rgba(245, 179, 1, 0.35);

    opacity: 0;
    pointer-events: none;
    transition: all 0.25s ease;
    z-index: 10001;
}

.cs-dashboard--collapsed .cs-sidebar .cs-nav-item:hover::after,
.cs-dashboard--collapsed .cs-sidebar .cs-layout-btn:hover::after {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

.cs-dashboard--collapsed .cs-sidebar .cs-nav-item:hover::before,
.cs-dashboard--collapsed .cs-sidebar .cs-layout-btn:hover::before {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

/* Don't show empty tooltips */
.cs-dashboard--collapsed .cs-sidebar .cs-nav-item:not([data-tip])::after,
.cs-dashboard--collapsed .cs-sidebar .cs-nav-item:not([data-tip])::before,
.cs-dashboard--collapsed .cs-sidebar .cs-layout-btn:not([data-tip])::after,
.cs-dashboard--collapsed .cs-sidebar .cs-layout-btn:not([data-tip])::before {
    display: none;
}

/* =========================================================
   MOBILE — drawer mode always shows labels
   ========================================================= */

@media (max-width: 768px) {
    .cs-sidebar .cs-nav-label {
        display: block;
    }

    .cs-sidebar .cs-nav-item {
        justify-content: flex-start;
        padding: 12px 14px;
        gap: 14px;
    }

    .cs-sidebar .cs-nav-item span:not(.cs-nav-badge) {
        display: inline;
    }

    .cs-sidebar .cs-nav-badge {
        position: static;
        margin-left: auto;
    }

    .cs-sidebar .cs-footer-label {
        display: block;
    }

    .cs-sidebar .cs-layout-btn {
        width: auto;
        min-height: auto;
        justify-content: flex-start;
    }

    .cs-sidebar .cs-layout-btn .cs-layout-label,
    .cs-sidebar .cs-layout-btn .cs-layout-shortcut {
        display: inline;
    }

    .cs-sidebar .cs-layout-status {
        display: flex;
    }

    /* No tooltips on mobile */
    .cs-dashboard--collapsed .cs-sidebar .cs-nav-item::after,
    .cs-dashboard--collapsed .cs-sidebar .cs-layout-btn::after,
    .cs-dashboard--collapsed .cs-sidebar .cs-nav-item::before,
    .cs-dashboard--collapsed .cs-sidebar .cs-layout-btn::before {
        display: none;
    }
}