/* ================================================
   docs.css  — Additive styles only
   Requires: index.css (reset + body) + app.css (tokens + components)
================================================ */

/* ── Layout Tokens ─────────────────────────────── */
:root {
    --header-height: 56px;
    --toolbar-height: 0px;
    --sidebar-width: 260px;
    --sticky-top-offset: var(--header-height);
}

/* ── Page background ───────────────────────────── */
.doc-page-body {
    background: var(--qd-bg);
}

/* ── Fixed sidebar (desktop) ───────────────────── */
@media (min-width: 992px) {
    .doc-sidebar {
        width: var(--sidebar-width);
        position: fixed;
        top: var(--header-height);
        bottom: 0;
        left: 0;
        z-index: 1010;
        border-right: 1px solid var(--qd-border);
        overflow-y: auto;
        background: #fff;
        display: block !important;
        transform: none !important;
        visibility: visible !important;
    }

    .doc-main {
        margin-left: var(--sidebar-width);
    }
}

/* ── Main content area ─────────────────────────── */
.doc-main {
    padding: 28px 24px 60px;
    min-height: calc(100vh - var(--header-height));
}

.content-container {
    max-width: 900px;
    margin: 0 auto;
}

/* ── Sidebar nav ───────────────────────────────── */
.nav-container {
    padding: 12px 0 20px;
}

.nav-group-title {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--qd-muted);
    padding: 18px 16px 6px;
    border-bottom: 1px solid var(--qd-border);
    margin-bottom: 2px;
}

.nav-group-title:first-child {
    padding-top: 8px;
}

.nav-link-custom {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--qd-text);
    text-decoration: none !important;
    border-left: 2px solid transparent;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.nav-link-custom i {
    margin-right: 10px;
    font-size: 14px;
    width: 16px;
    text-align: center;
    color: var(--qd-muted);
    flex-shrink: 0;
}

.nav-link-custom:hover {
    background: var(--qd-primary-soft);
    color: var(--qd-primary);
}

.nav-link-custom:hover i {
    color: var(--qd-primary);
}

.nav-link-custom.active {
    background: var(--qd-primary-soft);
    color: var(--qd-primary);
    border-left-color: var(--qd-primary);
    font-weight: 700;
}

.nav-link-custom.active i {
    color: var(--qd-primary);
}

/* ── Section typography ────────────────────────── */
.section-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--qd-text);
    margin-top: 48px;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--qd-border);
    scroll-margin-top: calc(var(--header-height) + 16px);
    letter-spacing: -0.2px;
}

section#welcome h1 {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.4px;
    color: var(--qd-text);
}

section#welcome .lead {
    font-size: 14px;
    color: var(--qd-muted);
    line-height: 1.7;
}

/* ── Alert ─────────────────────────────────────── */
.alert-primary {
    background: var(--qd-primary-soft) !important;
    border: 1px solid var(--qd-primary) !important;
    border-left: 4px solid var(--qd-primary) !important;
    color: var(--qd-text) !important;
    font-size: 13px;
    padding: 10px 14px !important;
}

.alert-secondary {
    background: var(--qd-bg) !important;
    border: 1px solid var(--qd-border) !important;
    border-left: 4px solid var(--qd-muted) !important;
    color: var(--qd-text) !important;
    font-size: 13px;
    padding: 8px 14px !important;
}

/* ── Feature cards ─────────────────────────────── */
.feature-card {
    background: #fff;
    border: 1px solid var(--qd-border) !important;
    padding: 18px 20px;
    margin-bottom: 16px;
    box-shadow: none !important;
    transition: border-color 0.18s;
}

.feature-card:hover {
    border-color: var(--qd-primary) !important;
}

.feature-card h5 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--qd-text);
}

.feature-card ul li {
    font-size: 13px;
    color: var(--qd-muted);
    margin-bottom: 6px;
    line-height: 1.5;
}

.feature-card ul li strong {
    color: var(--qd-text);
    font-weight: 600;
}

/* Info stat boxes */
.p-3.border.bg-light {
    background: var(--qd-bg) !important;
    border: 1px solid var(--qd-border) !important;
    transition: border-color 0.18s;
}

.p-3.border.bg-light:hover {
    border-color: var(--qd-primary) !important;
}

.p-3.border.bg-light h6 {
    font-size: 13px;
    font-weight: 700;
    color: var(--qd-text);
    margin-bottom: 6px;
}

.p-3.border.bg-light p {
    font-size: 12px;
    color: var(--qd-muted);
    line-height: 1.5;
}

/* ── Table ─────────────────────────────────────── */
.table-responsive {
    border: 1px solid var(--qd-border) !important;
}

.table {
    font-size: 13px;
    margin-bottom: 0;
}

.table thead th {
    background: #fafbfc !important;
    font-size: 11px !important;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--qd-muted);
    padding: 9px 12px !important;
    border-bottom: 2px solid var(--qd-border) !important;
}

.table tbody td {
    font-size: 13px;
    padding: 8px 12px !important;
    vertical-align: middle;
    color: var(--qd-text);
    border-color: var(--qd-border);
}

.table-striped>tbody>tr:nth-of-type(odd)>td {
    background: #fafbfc;
}

/* ── Accordion ─────────────────────────────────── */
.accordion-item {
    border: 1px solid var(--qd-border) !important;
    margin-bottom: 4px;
}

.accordion-button {
    font-size: 13px !important;
    font-weight: 600 !important;
    color: var(--qd-text) !important;
    background: #fafbfc !important;
    padding: 10px 14px !important;
    box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
    color: var(--qd-primary) !important;
    background: var(--qd-primary-soft) !important;
    border-bottom: 1px solid var(--qd-border);
}

.accordion-button::after {
    filter: none;
}

.accordion-body {
    font-size: 13px;
    color: var(--qd-muted);
    padding: 12px 14px !important;
    line-height: 1.6;
}

/* ── Badges ────────────────────────────────────── */
.badge.bg-light {
    font-size: 12px !important;
    font-weight: 600;
    background: var(--qd-bg) !important;
    color: var(--qd-text) !important;
    border: 1px solid var(--qd-border) !important;
    padding: 4px 10px;
}

/* ── Code ──────────────────────────────────────── */
code {
    font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    background: var(--qd-bg);
    padding: 2px 6px;
    color: var(--qd-danger);
    font-size: 12px;
    border: 1px solid var(--qd-border);
}

/* ── Search bar in header ──────────────────────── */
.search-wrapper {
    position: relative;
    border: 1px solid var(--qd-border) !important;
    background: var(--qd-bg);
}

.doc-search-input {
    background: #fff !important;
    border: none !important;
    color: var(--qd-text) !important;
    padding-left: 36px !important;
    font-size: 13px !important;
    box-shadow: none !important;
    height: 32px;
}

.doc-search-input::placeholder {
    color: var(--qd-muted);
    font-size: 12px;
}

.doc-search-input:focus {
    box-shadow: none !important;
    outline: none !important;
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--qd-muted);
    font-size: 13px;
    z-index: 1;
}

/* ── Buttons ───────────────────────────────────── */
.btn-primary {
    background: var(--qd-primary) !important;
    border: none !important;
    color: #fff !important;
    font-size: 12px !important;
    font-weight: 700 !important;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    padding: 5px 14px !important;
}

.btn-primary:hover {
    background: var(--qd-primary-dark) !important;
}

.btn-outline-primary {
    border: 1px solid var(--qd-primary) !important;
    color: var(--qd-primary) !important;
    background: transparent !important;
    font-size: 12px !important;
    font-weight: 700 !important;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    padding: 5px 14px !important;
}

.btn-outline-primary:hover {
    background: var(--qd-primary) !important;
    color: #fff !important;
}

.btn-outline-dark {
    border: 1px solid var(--qd-border) !important;
    color: var(--qd-text) !important;
    background: transparent !important;
    font-size: 12px !important;
    font-weight: 700 !important;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    padding: 5px 14px !important;
}

.btn-outline-dark:hover {
    background: var(--qd-bg) !important;
}

/* ── Footer ────────────────────────────────────── */
.qd-footer {
    background: #fff;
    border-top: 1px solid var(--qd-border);
    padding: 10px 20px;
    text-align: center;
    margin-top: 0;
}

.qd-footer p,
.qd-footer small {
    font-size: 12px;
    color: var(--qd-muted);
    margin: 0;
}

.qd-footer a {
    color: var(--qd-primary);
    font-weight: 600;
    text-decoration: none;
}

.qd-footer a:hover {
    color: var(--qd-primary-dark);
}

/* ── Sidebar scrollbar ─────────────────────────── */
.doc-sidebar::-webkit-scrollbar {
    width: 4px;
}

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

.doc-sidebar::-webkit-scrollbar-thumb {
    background: var(--qd-border);
}

.doc-sidebar::-webkit-scrollbar-thumb:hover {
    background: #aaaaaa;
}

/* ── Responsive ────────────────────────────────── */
@media (max-width: 991px) {
    .doc-main {
        padding: 20px 16px 48px;
        margin-left: 0;
    }

    .section-title {
        font-size: 16px;
        margin-top: 32px;
    }

    section#welcome h1 {
        font-size: 22px;
    }
}