/* =========================================================================
   Design tokens
   ========================================================================= */

:root {
    /* Colors */
    --bg-page:      #f1f3f6;
    --bg-surface:   #ffffff;
    --bg-subtle:    #f8fafc;
    --bg-hover:     #f1f5f9;

    --border:       #e2e8f0;
    --border-strong:#cbd5e1;

    --text:         #0f172a;
    --text-muted:   #64748b;
    --text-faint:   #94a3b8;

    --brand:        #2563eb;
    --brand-hover:  #1d4ed8;
    --brand-soft:   #dbeafe;
    --danger:       #dc2626;
    --danger-soft:  #fef2f2;
    --success:      #16a34a;

    /* Shape */
    --radius-sm:    6px;
    --radius:       10px;
    --radius-lg:    14px;
    --radius-pill:  999px;

    /* Elevation */
    --shadow-xs:    0 1px 2px rgb(15 23 42 / 0.04);
    --shadow-sm:    0 1px 3px rgb(15 23 42 / 0.06), 0 1px 2px rgb(15 23 42 / 0.04);
    --shadow-md:    0 4px 12px rgb(15 23 42 / 0.07), 0 2px 4px rgb(15 23 42 / 0.04);
    --shadow-lg:    0 12px 32px rgb(15 23 42 / 0.10), 0 4px 8px rgb(15 23 42 / 0.05);

    /* Layout */
    --content-max:  1280px;
    --nav-height:   64px;
    --sidebar-w:    260px;
    --sidebar-w-xl: 300px;

    /* Motion */
    --ease:         cubic-bezier(.4, 0, .2, 1);
    --dur:          160ms;

    /* Typography */
    --font-sans:    system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --fs-sm:        0.8125rem;
    --fs-base:      0.9375rem;
    --fs-lg:        1.0625rem;
}

/* =========================================================================
   Base
   ========================================================================= */

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

html { -webkit-text-size-adjust: 100%; }

.site-body {
    margin: 0;
    padding: 1.5rem 1rem;
    min-height: 100vh;
    background: var(--bg-page);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: var(--fs-base);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

@media (min-width: 768px) {
    .site-body { padding: 2rem 1.5rem; }
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 8px;
    z-index: 2000;
    padding: .5rem .875rem;
    background: var(--brand);
    color: #fff;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: var(--fs-sm);
    transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: 8px; }

/* =========================================================================
   Wrapper card
   ========================================================================= */

.site-wrapper {
    max-width: var(--content-max);
    margin: 0 auto;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

/* When admin toolbar is present, header sticks below it */
body.has-admin-toolbar {
    padding-top: 0;              /* override the base rule */
}

body.has-admin-toolbar .site-wrapper {
    position: relative;          /* top only works on positioned elements */
    margin-top: var(--admin-toolbar-h);
}

/* Regions share horizontal padding with main */
.region {
    padding: 1.25rem 1.5rem;
}
.region + .region { padding-top: 0; }

@media (min-width: 768px) {
    .region { padding: 1.5rem 2rem; }
    .region + .region { padding-top: 0; }
}

/* =========================================================================
   Header / nav
   ========================================================================= */

.site-header {
    /* remove: position: sticky; top: 0; z-index: 1020; */
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    /* rounded top corners to match the card */
    border-top-left-radius: var(--radius-lg);
    border-top-right-radius: var(--radius-lg);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-height: var(--nav-height);
    padding: 0 1rem;
    position: relative;
}

@media (min-width: 768px) {
    .site-nav { padding: 0 2rem; }
}

/* --- Logo --------------------------------------------------------------- */

.site-nav__logo {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    font-size: var(--fs-lg);
    flex-shrink: 0;
    letter-spacing: -0.01em;
}

.site-nav__logo img { display: block; height: 32px; width: auto; }

.site-nav__brand { white-space: nowrap; }

/* --- Menu --------------------------------------------------------------- */

.site-nav__menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
}

.site-nav__link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--fs-base);
    padding: .25rem 0;
    border-bottom: 2px solid transparent;
    transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
    position: relative;
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
    color: var(--text);
    border-bottom-color: var(--brand);
    outline: none;
}

.site-nav__link.is-active {
    color: var(--text);
    border-bottom-color: var(--brand);
}

/* --- Search ------------------------------------------------------------- */

.site-nav__search {
    position: relative;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    margin-left: auto;
}

.site-nav__search-input {
    width: 200px;
    padding: .5rem 2.25rem .5rem .875rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    background: var(--bg-subtle);
    font: inherit;
    font-size: var(--fs-sm);
    color: var(--text);
    transition:
        border-color var(--dur) var(--ease),
        background var(--dur) var(--ease),
        width 220ms var(--ease),
        box-shadow var(--dur) var(--ease);
}

.site-nav__search-input::placeholder { color: var(--text-faint); }

.site-nav__search-input:focus {
    outline: none;
    border-color: var(--brand);
    background: var(--bg-surface);
    width: 280px;
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.12);
}

.site-nav__search-input::-webkit-search-cancel-button { display: none; }

.site-nav__search-btn {
    position: absolute;
    right: .3rem;
    top: 50%;
    transform: translateY(-50%);
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border: 0;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 50%;
    transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.site-nav__search-btn:hover {
    color: var(--brand);
    background: var(--brand-soft);
}

/* --- Hamburger toggle --------------------------------------------------- */

.site-nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
    border-radius: var(--radius-sm);
    margin-left: auto;
    transition: background var(--dur) var(--ease);
}

.site-nav__toggle:hover { background: var(--bg-hover); }

.site-nav__toggle-bar {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 1px;
    transition: transform .2s var(--ease), opacity .2s var(--ease);
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(2) {
    opacity: 0;
}
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* =========================================================================
   User dropdown
   ========================================================================= */

.site-nav__dropdown { position: relative; }

.site-nav__dropdown-toggle {
    display: flex;
    align-items: center;
    gap: .4rem;
    padding: .45rem .75rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-muted);
    font: inherit;
    font-size: var(--fs-sm);
    font-weight: 500;
    cursor: pointer;
    transition: border-color var(--dur) var(--ease),
                background var(--dur) var(--ease),
                color var(--dur) var(--ease);
}

.site-nav__dropdown-toggle:hover,
.site-nav__dropdown-toggle[aria-expanded="true"] {
    border-color: var(--border);
    background: var(--bg-subtle);
    color: var(--text);
}

.site-nav__dropdown-toggle:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.12);
}

.site-nav__dropdown-caret {
    font-size: .7rem;
    transition: transform .2s var(--ease);
}

.site-nav__dropdown-toggle[aria-expanded="true"] .site-nav__dropdown-caret {
    transform: rotate(180deg);
}

.site-nav__dropdown-menu {
    position: absolute;
    top: calc(100% + .5rem);
    right: 0;
    min-width: 220px;
    margin: 0;
    padding: .375rem;
    list-style: none;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition:
        opacity var(--dur) var(--ease),
        visibility var(--dur) var(--ease),
        transform var(--dur) var(--ease);
    z-index: 100;
}

.site-nav__dropdown.is-open .site-nav__dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.site-nav__dropdown-link {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem .75rem;
    color: var(--text);
    text-decoration: none;
    font-size: var(--fs-sm);
    border-radius: var(--radius-sm);
    transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.site-nav__dropdown-link:hover,
.site-nav__dropdown-link:focus-visible {
    background: var(--bg-hover);
    outline: none;
}

.site-nav__dropdown-link.text-danger { color: var(--danger); }
.site-nav__dropdown-link.text-danger:hover { background: var(--danger-soft); }

.site-nav__dropdown-menu .dropdown-divider {
    margin: .375rem .25rem;
    border: 0;
    border-top: 1px solid var(--border);
}

/* =========================================================================
   Main layout (sidebars + content)
   ========================================================================= */

.site-layout {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    padding: 2rem;
}

@media (max-width: 991.98px) {
    .site-layout {
        flex-direction: column;
        gap: 1.5rem;
        padding: 1.25rem;
    }
}

.site-main {
    flex: 1 1 auto;
    min-width: 0;
    /* Constrain prose width for readability */
}

.site-sidebar {
    flex: 0 0 var(--sidebar-w);
    width: var(--sidebar-w);
    min-width: 0;
    /* Prevent long content from blowing out the column */
    overflow-wrap: break-word;
    word-wrap: break-word;
}

@media (min-width: 1400px) {
    .site-sidebar {
        flex-basis: var(--sidebar-w-xl);
        width: var(--sidebar-w-xl);
    }
}

@media (max-width: 991.98px) {
    .site-sidebar {
        flex: 1 1 auto;
        width: 100%;
    }
}

.site-sidebar > * { max-width: 100%; }
.site-sidebar img,
.site-sidebar pre,
.site-sidebar table { max-width: 100%; overflow-x: auto; }

/* Optional: sidebar widgets as cards */
.site-sidebar .widget {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-xs);
}

.site-sidebar .widget + .widget { margin-top: 1rem; }

.site-sidebar .widget__title {
    font-size: var(--fs-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--text-muted);
    margin: 0 0 .75rem;
}

/* =========================================================================
   Footer
   ========================================================================= */

.site-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border);
    background: var(--bg-subtle);
    color: var(--text-muted);
    font-size: var(--fs-sm);
}

.site-footer a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--dur) var(--ease);
}
.site-footer a:hover { color: var(--text); }

/* =========================================================================
   Buttons (lightweight helpers)
   ========================================================================= */

.btn-brand {
    background: var(--brand);
    border-color: var(--brand);
    color: #fff;
}
.btn-brand:hover,
.btn-brand:focus-visible {
    background: var(--brand-hover);
    border-color: var(--brand-hover);
    color: #fff;
}

/* =========================================================================
   Mobile nav behaviour
   ========================================================================= */

@media (max-width: 767.98px) {
    .site-nav {
        flex-wrap: wrap;
        row-gap: 0;
        padding-bottom: .5rem;
    }

    .site-nav__toggle { display: inline-flex; }

    .site-nav__menu {
        order: 3;
        flex-basis: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height .28s var(--ease);
    }

    .site-nav__menu.is-open {
        max-height: 480px;
        padding: .5rem 0 1rem;
    }

    .site-nav__menu li { width: 100%; }

    .site-nav__link {
        display: block;
        padding: .75rem 0;
        border-bottom: 1px solid var(--border);
        border-bottom-width: 1px;
    }

    .site-nav__link:hover,
    .site-nav__link:focus-visible,
    .site-nav__link.is-active {
        border-bottom-color: var(--border);
        padding-left: .5rem;
    }

    .site-nav__search {
        order: 2;
        flex-basis: 100%;
        margin: .25rem 0 .5rem;
        margin-left: 0;
    }

    .site-nav__search-input,
    .site-nav__search-input:focus { width: 100%; }

    /* Mobile dropdown: static flow */
    .site-nav__dropdown-menu {
        position: static;
        box-shadow: none;
        border: 0;
        border-top: 1px solid var(--border);
        border-radius: 0;
        padding: .25rem 0 .25rem .75rem;
        margin-top: .25rem;
        min-width: 0;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
    }

    .site-nav__dropdown.is-open .site-nav__dropdown-menu { display: block; }

    .site-nav__dropdown-toggle {
        width: 100%;
        justify-content: space-between;
        padding: .5rem .25rem;
    }
}

/* =========================================================================
   Reduced motion
   ========================================================================= */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}