/* =========================================================
   Layout — global structure & spacing tokens
   ========================================================= */

:root {
    --color-primary:    #2E3A3F;
    --color-text:       #1A1A1A;
    --color-muted:      #6B7C80;
    --color-bg:         #FFFFFF;
    --color-border:     #E6EAEA;
    --color-surface:    #F7F9FA;
    --color-link:       #2E3A3F;

    --font-sans:        'Inter', system-ui, -apple-system, sans-serif;

    --size-xs:   4px;
    --size-sm:   8px;
    --size-md:   16px;
    --size-lg:   24px;
    --size-xl:   40px;
    --size-2xl:  64px;
    --size-3xl:  96px;

    --radius:    6px;
    --max-width: 1100px;
    --header-h:  72px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin:     0;
    padding:    0;
}

html {
    font-size:            16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior:      smooth;
}

body {
    font-family:   var(--font-sans);
    font-size:     1rem;
    line-height:   1.6;
    color:         var(--color-text);
    background:    var(--color-bg);
    min-height:    100vh;
}

img,
picture,
video,
canvas,
svg {
    display:    block;
    max-width:  100%;
}

a {
    color:           var(--color-link);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

p,
h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
}

/* -------------------------------------------------------------------------
   Container
   ------------------------------------------------------------------------- */
.container {
    max-width: var(--max-width);
    margin:    0 auto;
    padding:   0 var(--size-lg);
}

/* -------------------------------------------------------------------------
   Section spacing
   ------------------------------------------------------------------------- */
.section {
    padding: var(--size-3xl) 0;
}

.section--sm {
    padding: var(--size-2xl) 0;
}

.section__header {
    margin-bottom: var(--size-xl);
}

.section__title {
    font-size:   1.5rem;
    font-weight: 600;
    color:       var(--color-primary);
    letter-spacing: -0.01em;
}

.section__subtitle {
    font-size:  1rem;
    color:      var(--color-muted);
    margin-top: var(--size-sm);
}

/* -------------------------------------------------------------------------
   Grid
   ------------------------------------------------------------------------- */
.grid-3 {
    display:               grid;
    grid-template-columns: repeat(3, 1fr);
    gap:                   var(--size-lg);
}

.grid-2 {
    display:               grid;
    grid-template-columns: repeat(2, 1fr);
    gap:                   var(--size-lg);
}

@media (max-width: 900px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 var(--size-md);
    }

    .section {
        padding: var(--size-2xl) 0;
    }
}

/* -------------------------------------------------------------------------
   Divider
   ------------------------------------------------------------------------- */
hr,
.divider {
    border:        none;
    border-top:    1px solid var(--color-border);
    margin:        var(--size-xl) 0;
}

/* -------------------------------------------------------------------------
   Prose (article body)
   ------------------------------------------------------------------------- */
.prose {
    max-width:   720px;
    font-size:   1rem;
    line-height: 1.75;
    color:       var(--color-text);
}

.prose h2 {
    font-size:     1.25rem;
    font-weight:   600;
    margin-top:    var(--size-2xl);
    margin-bottom: var(--size-md);
    color:         var(--color-primary);
}

.prose h3 {
    font-size:     1.1rem;
    font-weight:   600;
    margin-top:    var(--size-xl);
    margin-bottom: var(--size-sm);
    color:         var(--color-primary);
}

.prose p {
    margin-bottom: var(--size-md);
}

.prose ul,
.prose ol {
    padding-left:  var(--size-xl);
    margin-bottom: var(--size-md);
}

.prose li {
    margin-bottom: var(--size-xs);
}

.prose blockquote {
    border-left:   3px solid var(--color-primary);
    padding-left:  var(--size-md);
    color:         var(--color-muted);
    font-style:    italic;
    margin:        var(--size-md) 0;
}

.prose table {
    width:          100%;
    border-collapse: collapse;
    margin-bottom:  var(--size-md);
    font-size:      0.9rem;
}

.prose th,
.prose td {
    text-align:   left;
    padding:      var(--size-sm) var(--size-md);
    border-bottom: 1px solid var(--color-border);
}

.prose th {
    font-weight:      600;
    color:            var(--color-primary);
    background-color: var(--color-surface);
}

/* -------------------------------------------------------------------------
   Accessibility
   ------------------------------------------------------------------------- */
.screen-reader-text {
    position:   absolute;
    width:      1px;
    height:     1px;
    padding:    0;
    margin:     -1px;
    overflow:   hidden;
    clip:       rect(0, 0, 0, 0);
    white-space: nowrap;
    border:     0;
}

.skip-link {
    position:   absolute;
    top:        -100%;
    left:       0;
    background: var(--color-primary);
    color:      white;
    padding:    var(--size-sm) var(--size-md);
    z-index:    9999;
}

.skip-link:focus {
    top: 0;
}

/* -------------------------------------------------------------------------
   Entry meta
   ------------------------------------------------------------------------- */
.entry-meta {
    font-size:  0.85rem;
    color:      var(--color-muted);
    margin-top: var(--size-sm);
}

/* -------------------------------------------------------------------------
   Pagination
   ------------------------------------------------------------------------- */
.pagination {
    display:         flex;
    gap:             var(--size-sm);
    margin-top:      var(--size-2xl);
    justify-content: center;
}

.pagination a,
.pagination span {
    padding:      var(--size-sm) var(--size-md);
    border:       1px solid var(--color-border);
    border-radius: var(--radius);
    font-size:    0.9rem;
    color:        var(--color-primary);
}

.pagination .current {
    background: var(--color-primary);
    color:      white;
    border-color: var(--color-primary);
}