/*
 * DataBytes Application Shell Layout
 * Defines the topbar, sidebar, content area and responsive behaviour.
 * Do not put component styles here.
 */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
    margin: 0;
}

body {
    font-family: var(--db-font);
    font-size: var(--db-font-size);
    line-height: var(--db-line-height);
    color: var(--db-text);
    background: var(--db-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.db-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--db-topbar-height);
    background: var(--db-topbar-bg);
    border-bottom: 1px solid var(--db-topbar-border);
    display: flex;
    align-items: center;
    padding: 0 var(--db-space-4);
    gap: var(--db-space-2);
    z-index: 1030;
    box-shadow: var(--db-shadow-xs);
}

.db-topbar__brand {
    display: flex;
    align-items: center;
    gap: var(--db-space-2);
    font-weight: 700;
    font-size: 0.9375rem;
    color: var(--db-text);
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
    letter-spacing: -0.01em;
}

.db-topbar__brand:hover {
    color: var(--db-text);
    text-decoration: none;
}

.db-topbar__brand-mark {
    width: 28px;
    height: 28px;
    background: var(--db-primary);
    color: #fff;
    border-radius: var(--db-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9375rem;
    font-weight: 700;
    flex-shrink: 0;
}

.db-topbar__divider {
    width: 1px;
    height: 20px;
    background: var(--db-border);
    flex-shrink: 0;
    margin: 0 var(--db-space-1);
}

.db-topbar__spacer {
    flex: 1;
    min-width: 0;
}

.db-topbar__actions {
    display: flex;
    align-items: center;
    gap: var(--db-space-1);
}

/* ── Sidebar ─────────────────────────────────────────────── */

.db-sidebar {
    position: fixed;
    top: var(--db-topbar-height);
    left: 0;
    bottom: 0;
    width: var(--db-sidebar-width);
    background: var(--db-sidebar-bg);
    overflow-y: auto;
    overflow-x: hidden;
    transition: width var(--db-transition);
    z-index: 1020;
    display: flex;
    flex-direction: column;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.12) transparent;
}

.db-sidebar::-webkit-scrollbar {
    width: 4px;
}

.db-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.db-sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 2px;
}

.db-sidebar__nav {
    flex: 1;
    padding: var(--db-space-3) 0;
}

.db-sidebar__group-label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--db-sidebar-text);
    padding: var(--db-space-4) var(--db-space-4) var(--db-space-1);
    white-space: nowrap;
    overflow: hidden;
    opacity: 0.5;
    transition: opacity var(--db-transition), padding var(--db-transition);
}

.db-sidebar__item {
    display: flex;
    align-items: center;
    gap: var(--db-space-3);
    padding: 0 var(--db-space-4);
    height: 36px;
    color: var(--db-sidebar-text);
    text-decoration: none;
    font-size: var(--db-font-size);
    font-weight: 400;
    white-space: nowrap;
    overflow: hidden;
    transition: background var(--db-transition-fast), color var(--db-transition-fast),
                border-color var(--db-transition-fast);
    border-left: 3px solid transparent;
    position: relative;
    cursor: pointer;
}

.db-sidebar__item:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--db-sidebar-text-hover);
    text-decoration: none;
}

.db-sidebar__item:focus-visible {
    outline: 2px solid var(--db-primary);
    outline-offset: -2px;
}

.db-sidebar__item.is-active {
    background: var(--db-sidebar-active-bg);
    color: var(--db-sidebar-active-text);
    border-left-color: var(--db-sidebar-active-text);
    font-weight: 500;
}

.db-sidebar__item-icon {
    font-size: 1rem;
    flex-shrink: 0;
    width: 18px;
    text-align: center;
    transition: margin var(--db-transition);
}

.db-sidebar__item-label {
    overflow: hidden;
    transition: opacity var(--db-transition), width var(--db-transition),
                max-width var(--db-transition);
    max-width: 160px;
}

.db-sidebar__divider {
    border: none;
    border-top: 1px solid var(--db-sidebar-divider);
    margin: var(--db-space-2) var(--db-space-4);
    transition: margin var(--db-transition);
}

.db-sidebar__footer {
    padding: var(--db-space-3) var(--db-space-4);
    border-top: 1px solid var(--db-sidebar-divider);
    font-size: var(--db-font-size-xs);
    color: var(--db-sidebar-text);
    opacity: 0.35;
    white-space: nowrap;
    overflow: hidden;
    transition: opacity var(--db-transition);
}

/* ── Content wrapper ─────────────────────────────────────── */

.db-content-wrap {
    margin-top: var(--db-topbar-height);
    margin-left: var(--db-sidebar-width);
    transition: margin-left var(--db-transition);
    min-height: calc(100vh - var(--db-topbar-height));
    display: flex;
    flex-direction: column;
}

.db-content {
    flex: 1;
    padding: var(--db-space-5);
    min-width: 0;
}

/* ── Collapsed sidebar ───────────────────────────────────── */

body.db-sidebar-collapsed .db-sidebar {
    width: var(--db-sidebar-collapsed);
}

body.db-sidebar-collapsed .db-content-wrap {
    margin-left: var(--db-sidebar-collapsed);
}

body.db-sidebar-collapsed .db-sidebar__item-label,
body.db-sidebar-collapsed .db-sidebar__group-label,
body.db-sidebar-collapsed .db-sidebar__footer {
    opacity: 0;
    max-width: 0;
    pointer-events: none;
}

body.db-sidebar-collapsed .db-sidebar__item {
    justify-content: center;
    padding-left: 0;
    padding-right: 0;
    border-left-color: transparent !important;
}

body.db-sidebar-collapsed .db-sidebar__item.is-active {
    background: var(--db-sidebar-active-bg);
    color: var(--db-sidebar-active-text);
}

body.db-sidebar-collapsed .db-sidebar__divider {
    margin-left: var(--db-space-2);
    margin-right: var(--db-space-2);
}

/* tooltip for icon-only collapsed state */
body.db-sidebar-collapsed .db-sidebar__item[title] {
    overflow: visible;
}

/* ── Mobile sidebar overlay ──────────────────────────────── */

.db-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    z-index: 1019;
    cursor: pointer;
}

.db-sidebar-overlay.is-visible {
    display: block;
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 991.98px) {
    .db-sidebar {
        top: var(--db-topbar-height);
        transform: translateX(-100%);
        transition: transform var(--db-transition), width 0ms;
        z-index: 1045;
        width: var(--db-sidebar-width);
    }

    .db-sidebar.is-open {
        transform: translateX(0);
    }

    .db-sidebar-overlay {
        z-index: 1040;
    }

    .db-content-wrap {
        margin-left: 0 !important;
    }

    /* Override collapsed state on mobile — always show full sidebar when open */
    body.db-sidebar-collapsed .db-sidebar {
        width: var(--db-sidebar-width);
    }

    body.db-sidebar-collapsed .db-sidebar .db-sidebar__item-label,
    body.db-sidebar-collapsed .db-sidebar .db-sidebar__group-label,
    body.db-sidebar-collapsed .db-sidebar .db-sidebar__footer {
        opacity: 1;
        max-width: 160px;
        pointer-events: auto;
    }

    body.db-sidebar-collapsed .db-sidebar .db-sidebar__item {
        justify-content: flex-start;
        padding-left: var(--db-space-4);
        padding-right: var(--db-space-4);
        border-left-color: transparent;
    }

    body.db-sidebar-collapsed .db-sidebar .db-sidebar__item.is-active {
        border-left-color: var(--db-sidebar-active-text);
    }

    .db-content {
        padding: var(--db-space-4);
    }
}

@media (max-width: 575.98px) {
    .db-content {
        padding: var(--db-space-3);
    }
}