/* ==========================================================================
   LeonQ Gallery - graphite + silver (Luminary-style)
   tokens -> base -> effects -> layout -> gallery -> blog -> lightbox -> responsive
   ========================================================================== */

:root {
    color-scheme: dark;

    /* Cool graphite surfaces, silver accents */
    --bg:       #0F1115;                /* base-deep */
    --surface:  #161A20;                /* base-mid  */
    --raised:   #1C2128;                /* base-soft */
    --line:     rgb(156 163 175 / .08); /* panel-border */
    --line-hi:  #3D424A;                /* graphite-soft */
    --text:     #E5E7EB;                /* ivory */
    --muted:    #9CA3AF;                /* slate-light */
    --silver:   #B0B8C4;
    --silver-hi:#E5E7EB;
    --metal:    linear-gradient(135deg, #E5E7EB, #B0B8C4, #9CA3AF);
    --bar:      rgb(15 17 21 / .85);

    --radius:  6px;
    --gap:     clamp(1rem, 3vw, 1.75rem);
    --tile:    6px;                     /* space between photos */
    --maxw:    1120px;
    --ease:    cubic-bezier(.16, 1, .3, 1);   /* Luminary silk-ease */
    --font:    "Newsreader", Georgia, serif;
}

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

html {
    -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 8rem; scroll-behavior: smooth;
    scrollbar-color: var(--line-hi) var(--bg);
}

body {
    margin: 0;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    background: var(--bg);
    color: var(--text);
    font: 300 .8rem/1.75 var(--font);
    letter-spacing: .01em;
}
body:has(dialog[open]) { overflow: hidden; }
::selection { background: var(--silver); color: var(--bg); }

img, picture { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-weight: 300; }
code { font-size: .8125em; padding: .1em .4em; background: var(--raised); border: 1px solid var(--line); border-radius: var(--radius); }

:focus-visible { outline: 1px solid var(--silver); outline-offset: 3px; border-radius: var(--radius); }

.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px; margin: -1px; padding: 0; border: 0;
    overflow: hidden; clip-path: inset(50%); white-space: nowrap;
}

.skip-link {
    position: absolute; left: 1rem; top: -4rem; z-index: 60;
    padding: .5rem .9rem; background: var(--silver-hi); color: var(--bg); border-radius: var(--radius);
}
.skip-link:focus { top: 1rem; }

/* ---- Background: same as Luminary (body #0F1115 + fixed .atmosphere gradient) ---- */
.atmosphere {
    position: fixed; inset: 0; z-index: -1; pointer-events: none;
    background: linear-gradient(180deg, #0F1115 0%, #161A20 35%, #1C2128 70%, #0D0F13 100%);
    --mx: 50%; --my: 30%;
}
.atmosphere::after {                            /* soft glow that follows the pointer (no grid) */
    content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity .8s var(--ease);
    background: radial-gradient(circle 320px at var(--mx) var(--my), rgb(176 184 196 / .09), transparent 70%);
}
.atmosphere.is-live::after { opacity: 1; }

/* Side rails (Luminary side panels): scroll % on the left, page name on the right */
.rail { position: fixed; top: 50%; z-index: 5; translate: 0 -50%; display: flex; flex-direction: column; align-items: center; gap: .9rem; color: var(--muted); font-size: .625rem; font-weight: 500; letter-spacing: .25em; text-transform: uppercase; pointer-events: none; }
.rail-left  { left: clamp(.75rem, 2vw, 1.75rem); height: 34vh; }
.rail-right { right: clamp(.75rem, 2vw, 1.75rem); }
.rail-right span { writing-mode: vertical-rl; opacity: .6; }
.rail-num { font-variant-numeric: tabular-nums; opacity: .6; }
.rail-track { position: relative; flex: 1; width: 1px; background: rgb(156 163 175 / .1); }
.rail-track i { position: absolute; inset: 0; background: linear-gradient(to bottom, var(--silver), rgb(176 184 196 / .15)); transform: scaleY(var(--p, 0)); transform-origin: top; transition: transform 1.2s var(--ease); }

/* ---- Layout -------------------------------------------------------------- */
.container { width: min(100% - 2 * var(--gap), var(--maxw)); margin-inline: auto; }
/* Same gap above the footer as below the header */
main { flex: 1; padding-block: 2rem; }

/* Header: sticky, follows the scroll */
.site-header {
    position: sticky; top: 0; z-index: 20;
    background: var(--bar);
    -webkit-backdrop-filter: blur(16px) saturate(140%); backdrop-filter: blur(16px) saturate(140%);
    border-bottom: 1px solid var(--line);
}
.site-header .container { padding-block: 1rem .75rem; }

.logo { display: block; width: 56px; height: 56px; margin-inline: auto; }
.logo img { width: 100%; height: 100%; object-fit: contain; transition: filter .8s var(--ease); }
@media (hover: hover) { .logo:hover img { filter: brightness(1.5); } }

.site-nav { margin-top: .875rem; }
.site-nav ul {
    display: flex; justify-content: flex-end; align-items: center; gap: 1rem;
    margin: 0; padding: 0; list-style: none; font-size: .8rem; letter-spacing: .08em;
}
.site-nav li + li::before {
    content: ""; display: inline-block; width: 1px; height: .75em; margin-right: 1rem;
    background: var(--line-hi); vertical-align: -.05em;
}
.site-nav li { display: flex; align-items: center; }
.site-nav a { position: relative; color: var(--muted); transition: color .8s var(--ease); }
.site-nav a::after {                            /* chevron that drops in under the link */
    content: ""; position: absolute; left: 50%; top: calc(100% + 1px);
    width: .4rem; height: .4rem; border: solid currentColor; border-width: 0 1px 1px 0;
    opacity: 0; transform: translate(-50%, -5px) rotate(45deg);
    transition: opacity .6s var(--ease), transform .8s var(--ease);
}
.site-nav a[aria-current="page"] { color: var(--silver-hi); font-weight: 400; }
.site-nav a[aria-current="page"]::after { opacity: .9; transform: translate(-50%, 0) rotate(45deg); }
@media (hover: hover) {
    .site-nav a:hover { color: var(--silver-hi); }
    .site-nav a:hover::after { opacity: .9; transform: translate(-50%, 0) rotate(45deg); }
}

.site-footer { background: var(--bar); border-top: 1px solid var(--line); }
.site-footer .container { padding-block: 1.25rem; text-align: center; font-size: .75rem; letter-spacing: .08em; color: var(--muted); }
.site-footer p { margin: 0; }

/* ---- Reveal on scroll (only when JS is on) ------------------------------- */
.js .reveal { opacity: 0; transform: translateY(36px); }
.js .reveal.is-in {
    opacity: 1; transform: none;
    transition: opacity 1.2s var(--ease) var(--d, 0ms), transform 1.2s var(--ease) var(--d, 0ms);
}

.reveal-all .reveal { opacity: 1 !important; transform: none !important; }

/* ---- Shared parts -------------------------------------------------------- */
.thumb { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); transition: border-color .8s var(--ease), box-shadow .8s var(--ease); }
.thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease), filter .5s; }
.thumb::after {                                 /* metallic sheen that sweeps across on hover */
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background: linear-gradient(115deg, transparent 35%, rgb(255 255 255 / .09) 50%, transparent 65%);
    transform: translateX(-120%); transition: transform .9s var(--ease);
}

.page-head { margin-bottom: 2rem; }
.page-head h1 {
    margin: .5rem 0 0; font-size: clamp(1.65rem, 4.5vw, 2.5rem); font-weight: 300; line-height: 1.15; letter-spacing: -.02em;
    background: var(--metal); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.page-head time, .page-meta { display: block; margin: .5rem 0 0; color: var(--muted); font-size: .75rem; letter-spacing: .06em; font-variant-numeric: tabular-nums; }
.page-head time { font-style: italic; }

.back { color: var(--muted); font-size: .75rem; letter-spacing: .08em; transition: color .6s var(--ease); }
.back::before { content: "\2190"; display: inline-block; margin-right: .5rem; transition: transform .3s var(--ease); }
@media (hover: hover) {
    .back:hover { color: var(--silver-hi); }
    .back:hover::before { transform: translateX(-4px); }
}

.empty { color: var(--muted); }
.empty h1 { margin: 0 0 .5rem; color: var(--text); font-weight: 300; font-size: 1.75rem; }

.pagination {
    display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: .25rem;
    margin-top: 3rem; color: var(--muted); font-size: .75rem; letter-spacing: .08em;
}
.pagination > span:first-child { margin-right: .75rem; }
.pagination a, .pagination [aria-current] {
    min-width: 2rem; padding: .2rem .5rem; text-align: center; border-radius: var(--radius); line-height: 1.6;
    border: 1px solid transparent;
}
.pagination a { transition: color .8s var(--ease), border-color .8s var(--ease), background .8s var(--ease); }
@media (hover: hover) { .pagination a:hover { color: var(--silver-hi); border-color: var(--line-hi); background: var(--surface); } }
.pagination [aria-current] { color: var(--bg); background: var(--metal); font-weight: 500; }

/* ---- Gallery (Home): album list ------------------------------------------ */
.album-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem var(--gap); margin: 0; padding: 0; list-style: none; }
.album { display: block; }
.album-meta { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-top: .75rem; }
.album-name { font-size: .8125rem; font-weight: 350; letter-spacing: .02em; transition: color .6s var(--ease); }
.album-count { color: var(--muted); font-size: .725rem; letter-spacing: .06em; white-space: nowrap; font-variant-numeric: tabular-nums; }
@media (hover: hover) {
    .album { transition: transform .8s var(--ease); }
    .album:hover { transform: scale(1.01); }
    .album:hover .thumb { border-color: rgb(156 163 175 / .15); box-shadow: 0 12px 60px rgb(0 0 0 / .15); }
    .album:hover .thumb img { transform: scale(1.06); filter: brightness(1.08); }
    .album:hover .thumb::after { transform: translateX(120%); }
    .album:hover .album-name { color: var(--silver-hi); }
}

/* ---- Gallery: photos (justified rows, like lightGallery) ------------------ */
.photo-grid { --h: 240px; display: flex; flex-wrap: wrap; gap: var(--tile); margin: 0; padding: 0; list-style: none; }
.photo-grid::after { content: ""; flex-grow: 1000000; }   /* keeps the last row from stretching */
.photo-grid li { flex: calc(var(--r) * 100) 1 calc(var(--r) * var(--h)); }
.photo-grid a { position: relative; display: block; aspect-ratio: var(--r); overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); cursor: zoom-in; transition: border-color .8s var(--ease); }
.photo-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }

@media (hover: hover) {
    .photo-grid a::before { content: ""; position: absolute; inset: 0; z-index: 1; background: rgb(15 17 21 / 0); transition: background .35s; }
    .photo-grid a::after {
        content: ""; position: absolute; left: 50%; top: 50%; z-index: 2; width: 22px; height: 22px; translate: -50% -50%;
        opacity: 0; transition: opacity .35s;
        background: linear-gradient(var(--silver-hi), var(--silver-hi)) center / 1px 100% no-repeat, linear-gradient(var(--silver-hi), var(--silver-hi)) center / 100% 1px no-repeat;
    }
    .photo-grid a:hover { border-color: var(--line-hi); }
    .photo-grid a:hover::before { background: rgb(15 17 21 / .5); }
    .photo-grid a:hover::after { opacity: 1; }
    .photo-grid a:hover img { transform: scale(1.04); }
}

/* ---- Blog ---------------------------------------------------------------- */
.post-list { margin: 0; padding: 0; list-style: none; }
.post-list li + li { border-top: 1px solid var(--line); }
.post { display: grid; grid-template-columns: minmax(120px, 210px) 1fr; gap: 1.75rem; align-items: center; padding-block: 1.5rem; }
.post-title { margin: 0; font-size: clamp(.9375rem, 2.3vw, 1.1875rem); font-weight: 300; line-height: 1.3; letter-spacing: -.01em; transition: color .6s var(--ease); }
.post time { display: block; margin-top: .25rem; color: var(--muted); font-style: italic; font-size: .6875rem; letter-spacing: .04em; }
.post p {
    margin: .75rem 0 0; color: var(--muted); max-width: 60ch;
    display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; line-clamp: 3; overflow: hidden;
}
@media (hover: hover) {
    .post:hover .thumb { border-color: rgb(156 163 175 / .15); box-shadow: 0 12px 60px rgb(0 0 0 / .15); }
    .post:hover .thumb img { transform: scale(1.06); filter: brightness(1.08); }
    .post:hover .thumb::after { transform: translateX(120%); }
    .post:hover .post-title { color: var(--silver-hi); }
}

.prose { font-size: .95rem; }   /* full width: text wraps at the edge of the page, like the photo grids */
.prose > :first-child { margin-top: 0; }
.prose h2, .prose h3 { margin: 2.25rem 0 .5rem; line-height: 1.3; letter-spacing: -.015em; color: var(--silver-hi); }
.prose h2 { font-size: 1.1875rem; }
.prose h3 { font-size: 1rem; }
.prose p, .prose ul, .prose ol { margin: 0 0 1.1rem; }
.prose strong { font-weight: 500; color: var(--silver-hi); }
.prose a { text-decoration: underline; text-decoration-color: var(--line-hi); text-underline-offset: 4px; transition: text-decoration-color .3s, color .3s; }
@media (hover: hover) { .prose a:hover { color: var(--silver-hi); text-decoration-color: var(--silver); } }
.prose img, .prose video { height: auto; margin-block: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); }
.prose iframe { max-width: 100%; border: 0; border-radius: var(--radius); }
.prose pre { overflow-x: auto; padding: 1rem 1.25rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.prose blockquote { margin: 1.5rem 0; padding-left: 1.25rem; border-left: 1px solid var(--line-hi); color: var(--muted); }

/* Album embedded in a post with <album name="..."> */
.post-album { margin-block: 2rem; }
.prose .photo-grid { margin: 0; }
.prose .photo-grid a { text-decoration: none; }
.prose .photo-grid img { height: 100%; margin: 0; border: 0; border-radius: 0; }

/* ---- Lightbox (built by main.js) ----------------------------------------- */
.lg {
    color-scheme: dark;
    --text: #E5E7EB; --muted: #9CA3AF; --surface: #161A20; --line: rgb(156 163 175 / .08);

    position: fixed; inset: 0; width: 100%; height: 100%; max-width: none; max-height: none;
    margin: 0; padding: 0; border: 0; overflow: hidden;
    background: rgb(13 15 19 / .98); color: var(--text);
}
.lg::backdrop { background: #000; }
.lg[open] { display: grid; grid-template-rows: auto minmax(0, 1fr) auto auto; }

/* Icons drawn with CSS only (no SVG): 20px box, lines follow the button colour */
.ic { position: relative; display: block; width: 20px; height: 20px; }
.ic::before, .ic::after { content: ""; position: absolute; box-sizing: border-box; }
.ic-close::before, .ic-close::after { left: 50%; top: 50%; width: 18px; height: 1.5px; background: currentColor; }
.ic-close::before { transform: translate(-50%, -50%) rotate(45deg); }
.ic-close::after  { transform: translate(-50%, -50%) rotate(-45deg); }
.ic-prev::before, .ic-next::before { left: 50%; top: 50%; width: 10px; height: 10px; border: solid currentColor; }
.ic-prev::before { border-width: 0 0 1.5px 1.5px; transform: translate(-35%, -50%) rotate(45deg); }
.ic-next::before { border-width: 1.5px 1.5px 0 0; transform: translate(-65%, -50%) rotate(45deg); }
.ic-play::before { left: 50%; top: 50%; border-style: solid; border-width: 6px 0 6px 10px; border-color: transparent transparent transparent currentColor; transform: translate(-40%, -50%); }
.ic-pause::before, .ic-pause::after { top: 3px; width: 2px; height: 14px; background: currentColor; }
.ic-pause::before { left: 5px; }
.ic-pause::after  { left: 13px; }

.lg-bar { display: flex; align-items: center; justify-content: space-between; padding: .5rem .75rem .5rem 1.5rem; }
.lg-count { color: var(--muted); font-size: .6875rem; letter-spacing: .12em; font-variant-numeric: tabular-nums; }
.lg-tools { display: flex; gap: .25rem; }

.lg-btn {
    display: grid; place-items: center; width: 44px; height: 44px; padding: 0;
    border: 1px solid transparent; border-radius: 50%; background: none; color: var(--muted); cursor: pointer;
    transition: color .25s, background .25s, border-color .25s;
}
.lg-btn:hover { color: #fff; background: rgb(255 255 255 / .06); border-color: #3D424A; }
.lg-btn[aria-pressed="true"] { color: #fff; }

.lg-stage { position: relative; min-height: 0; }
.lg-slide {
    position: absolute; inset: 0; overflow: hidden; touch-action: none; user-select: none; -webkit-user-select: none;
    /* Flexbox centering (same technique lightGallery uses): the box always has a real, determinate
       height (from the dialog's grid row), so the image below can size itself against it correctly. */
    display: flex; align-items: center; justify-content: center; padding-inline: 1rem;
}
.lg-slide img {
    /* Never let width/height be forced to 100% by anything else: the image must size itself from
       its own natural ratio, only capped by max-width/max-height. This is what actually keeps a
       portrait photo whole (no cropped top/bottom) instead of being stretched to fill the box. */
    display: block;
    width: auto !important;
    height: auto !important;
    max-width: 100% !important;
    max-height: 100% !important;
    object-fit: contain;      /* belt-and-braces: irrelevant once width/height are auto, but harmless */
    -webkit-user-drag: none;
}

.lg-nav { position: absolute; top: 50%; z-index: 1; translate: 0 -50%; }
.lg-prev { left: .75rem; }
.lg-next { right: .75rem; }

.lg-caption { min-height: 2.25rem; margin: 0; padding: .5rem 1.5rem; text-align: center; color: #C9CDD4; font-size: .75rem; letter-spacing: .04em; }

.lg-thumbs {
    display: flex; gap: 6px; padding: .5rem 1rem 1rem; overflow-x: auto; position: relative;
    justify-content: safe center; scrollbar-width: none;
}
.lg-thumbs::-webkit-scrollbar { display: none; }
.lg-thumb {
    flex: none; width: 64px; height: 48px; padding: 0; border: 0; overflow: hidden;
    background: var(--surface); border-radius: 4px; opacity: .4; cursor: pointer; transition: opacity .25s;
}
.lg-thumb:hover { opacity: .75; }
.lg-thumb[aria-current="true"] { opacity: 1; outline: 1px solid #C9CDD4; outline-offset: 2px; }
.lg-thumb img { width: 100%; height: 100%; object-fit: cover; }

@media (hover: none) { .lg-nav { display: none; } }

/* ---- Responsive ---------------------------------------------------------- */
@media (min-width: 760px) {
    .album-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 1279px) {
    .rail { display: none; }
}
@media (max-width: 560px) {
    .site-nav ul { justify-content: center; }
    .photo-grid { --h: 150px; }
    .post { grid-template-columns: 96px 1fr; gap: 1rem; align-items: start; }
    .post p { -webkit-line-clamp: 2; line-clamp: 2; }
    .lg-thumb { width: 52px; height: 40px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition: none !important; animation: none !important; }
    .js .reveal { opacity: 1; transform: none; }
}