/* ═══════════════════════════════════════
 RESET & TOKENS
═══════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
--bg:      #f4f3ef;
--bg-side: #eceae5;
--text:    #1a1a1a;
--muted:   #999;
--border:  #d9d7d1;
--hover:   #e4e2dc;
--font:    'Inter', -apple-system, sans-serif;
--sidebar: clamp(220px, 24vw, 300px);

--sp-xs: clamp(0.3rem,  0.5vw,  0.45rem);
--sp-sm: clamp(0.55rem, 0.9vw,  0.8rem);
--sp-md: clamp(0.85rem, 1.4vw,  1.25rem);
--sp-lg: clamp(1.2rem,  2vw,    2rem);

--gap: var(--sp-lg);

--t-md: clamp(0.875rem, 1.05vw, 1rem);
--t-sm: clamp(0.75rem,  0.9vw,  0.85rem);
--t-xs: clamp(0.63rem,  0.72vw, 0.70rem);
}

html { scroll-behavior: smooth; }

body {
background: var(--bg);
color: var(--text);
font-family: var(--font);
font-weight: 300;
line-height: 1.6;
-webkit-font-smoothing: antialiased;
display: flex;
min-height: 100vh;
}

a, [data-nav] { color: inherit; text-decoration: none; cursor: pointer; }
button { font-family: var(--font); border: none; background: none; cursor: pointer; }

/* ═══════════════════════════════════════
 SIDEBAR
═══════════════════════════════════════ */
.sidebar {
width: var(--sidebar);
min-width: var(--sidebar);
background: var(--bg-side);
border-right: 1px solid var(--border);
height: 100vh;
position: sticky;
top: 0;
overflow-y: auto;
overflow-x: hidden;
scrollbar-width: thin;
scrollbar-color: var(--border) transparent;
display: flex;
flex-direction: column;
flex-shrink: 0;
}
.sidebar::-webkit-scrollbar       { width: 3px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.sb-brand {
padding: var(--sp-md);
border-bottom: 1px solid var(--border);
flex-shrink: 0;
}

.sb-brand-name {
display: block;
font-size: var(--t-md);
font-weight: 300;
letter-spacing: -0.015em;
line-height: 1;
margin-bottom: var(--sp-xs);
transition: opacity .2s;
}
.sb-brand-name:hover { opacity: .6; }

/* John Gordon only */
#sbName { font-weight: 500; }

.sb-phone {
font-size: var(--t-sm);
color: var(--text);
letter-spacing: 0.01em;
font-variant-numeric: tabular-nums;
}

.sb-about-wrap {
padding: calc(var(--sp-xs) * .9) var(--sp-md);
border-bottom: 1px solid var(--border);
flex-shrink: 0;
}

.sb-about-lnk {
display: flex;
align-items: baseline;
justify-content: space-between;
font-size: var(--t-sm);
font-weight: 300;
color: var(--text);
padding: calc(var(--sp-xs) * .4) 0;
transition: color .2s;
}
.sb-about-lnk:hover  { color: var(--muted); }
.sb-about-lnk.active { font-weight: 500; }

.sb-nav { flex: 1; padding: var(--sp-sm) 0; }
.sb-item { display: block; }
.sb-item-row {
display: flex;
align-items: baseline;
justify-content: space-between;
padding: calc(var(--sp-xs) * .9) var(--sp-md);
gap: var(--sp-xs);
transition: background .15s;
}
.sb-item-row:hover { background: var(--hover); }

.sb-item-name {
font-size: var(--t-sm);
font-weight: 300;
line-height: 1.3;
flex: 1;
color: var(--text);
}
.sb-item.active .sb-item-name { font-weight: 500; }

.sb-item-yr {
font-size: var(--t-sm);
color: var(--muted);
font-variant-numeric: tabular-nums;
flex-shrink: 0;
}

.sb-item-content { overflow: hidden; height: 0; }
.sb-item-content-inner { padding: var(--sp-xs) var(--sp-md) var(--sp-md); }
.sb-item-meta { display: flex; flex-direction: column; gap: calc(var(--sp-xs) * .6); }
.sb-meta-row  { display: flex; gap: var(--sp-sm); font-size: var(--t-xs); }
.sb-meta-row span:first-child {
color: var(--muted);
letter-spacing: .08em;
text-transform: uppercase;
min-width: 5.5ch;
}

/* ═══════════════════════════════════════
 MAIN PANEL
═══════════════════════════════════════ */
.main-panel {
flex: 1;
display: flex;
flex-direction: column;
min-height: 100vh;
overflow-y: auto;
}
.main-inner { flex: 1; padding: var(--gap); }
.main-foot {
border-top: 1px solid var(--border);
padding: var(--sp-sm) var(--gap);
display: flex;
justify-content: space-between;
align-items: center;
flex-wrap: wrap;
gap: var(--sp-sm);
}
.ft-copy { font-size: var(--t-xs); color: var(--muted); }
.back-top {
display: flex; align-items: center; gap: .4em;
font-size: var(--t-xs); letter-spacing: .06em;
text-transform: uppercase; color: var(--muted); transition: color .2s;
}
.back-top:hover { color: var(--text); }
.back-top svg { width: 10px; height: 10px; }

/* ═══════════════════════════════════════
 PROJECT HEADER
═══════════════════════════════════════ */
.proj-header {
margin-bottom: var(--gap);
padding-bottom: var(--gap);
border-bottom: 1px solid var(--border);
}
.proj-header-title {
font-size: var(--t-md);
font-weight: 500;
letter-spacing: -0.01em;
line-height: 1.2;
margin-bottom: var(--sp-sm);
}
.proj-header-desc {
font-size: var(--t-sm);
color: #555;
line-height: 1.75;
max-width: 60ch;
font-weight: 300;
}

/* ═══════════════════════════════════════
 IMAGE GRID — PROJECT DETAIL
 ───────────────────────────────────────
 grid-auto-rows: 1px   masonry granularity
 row-gap: 0            gap baked into span
 grid-auto-flow: dense fills gaps next to
                       tall images
═══════════════════════════════════════ */
.dyn-grid {
display: grid;
column-gap: var(--gap);
row-gap: 0;
grid-auto-rows: 1px;
grid-auto-flow: row dense;
align-items: start;
width: 100%;
}

.dyn-grid[data-cols="1"] { grid-template-columns: 1fr; }
.dyn-grid[data-cols="2"] { grid-template-columns: repeat(2, 1fr); }
.dyn-grid[data-cols="3"] { grid-template-columns: repeat(3, 1fr); }

.dyn-tile        { display: block; min-width: 0; }
.dyn-tile.span-2 { grid-column: span 2; }
.dyn-tile.span-3 { grid-column: span 3; }

.dyn-tile img {
width: 100%;
height: auto;
display: block;
margin: 0 auto;
opacity: 0;
transition: opacity .35s ease;
}
.dyn-tile img.loaded { opacity: 1; }
.dyn-tile video {
width: 100%;
height: auto;
display: block;
background: #000;
}

/* ═══════════════════════════════════════
 IMAGE GRID — HOME PAGE
═══════════════════════════════════════ */
.home-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
column-gap: var(--gap);
row-gap: 0;
grid-auto-rows: 1px;
grid-auto-flow: row dense;
align-items: start;
width: 100%;
}

.home-tile {
position: relative;
overflow: hidden;
display: block;
cursor: pointer;
min-width: 0;
}
.home-tile.span-2 { grid-column: span 2; }
.home-tile.span-3 { grid-column: span 3; }

.home-tile img {
width: 100%;
height: auto;
display: block;
opacity: 0;
transition: opacity .35s ease, transform .4s ease;
}
.home-tile img.loaded { opacity: 1; }
.home-tile:hover img  { transform: scale(1.02); }

.home-tile-info {
position: absolute;
bottom: 0; left: 0; right: 0;
padding: var(--sp-sm) var(--sp-sm) var(--sp-xs);
background: linear-gradient(
  to top,
  rgba(0,0,0,.72) 0%,
  rgba(0,0,0,.28) 60%,
  transparent 100%
);
transform: translateY(6px);
opacity: 0;
transition: opacity .25s ease, transform .25s ease;
}
.home-tile:hover .home-tile-info { opacity: 1; transform: translateY(0); }

.home-tile-name {
display: block;
font-size: var(--t-xs);
font-weight: 400;
color: #fff;
}
.home-tile-year {
display: block;
font-size: var(--t-xs);
color: rgba(255,255,255,.6);
margin-top: 1px;
}

.home-tile-ph {
aspect-ratio: 4/3;
background: var(--hover);
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: var(--sp-xs);
padding: var(--sp-sm);
text-align: center;
}
.home-tile-ph-name { font-size: var(--t-xs); color: var(--muted); font-weight: 300; line-height: 1.4; }
.home-tile-ph-year { font-size: var(--t-xs); color: var(--muted); opacity: .6;      line-height: 1.4; }

/* ═══════════════════════════════════════
 PLACEHOLDER GRID
═══════════════════════════════════════ */
.ph-grid {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: var(--gap);
}
.ph-tile {
aspect-ratio: 16/9;
background: var(--hover);
display: flex;
align-items: center;
justify-content: center;
position: relative;
overflow: hidden;
}
.ph-tile::after {
content: '';
position: absolute; inset: 0;
background: repeating-linear-gradient(
  -45deg, transparent, transparent 18px,
  rgba(0,0,0,.022) 18px, rgba(0,0,0,.022) 19px
);
}
.ph-tile-lbl {
font-size: var(--t-xs);
color: var(--muted);
letter-spacing: .06em;
text-transform: uppercase;
z-index: 1;
}

/* ═══════════════════════════════════════
 ABOUT PANEL
═══════════════════════════════════════ */
.about-inner  { flex: 1; padding: var(--gap); max-width: 640px; }
.about-hl     { font-size: var(--t-md); font-weight: 300; letter-spacing: -0.01em; line-height: 1.3; margin-bottom: var(--sp-lg); }
.about-body p { font-size: var(--t-sm); color: #444; line-height: 1.85; max-width: 54ch; margin-bottom: var(--sp-md); }

.about-caps {
margin-top: var(--sp-lg);
padding-top: var(--sp-md);
border-top: 1px solid var(--border);
max-width: 320px;
}
.ac-lbl  { font-size: var(--t-xs); font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: var(--sp-sm); }
.ac-list { list-style: none; display: flex; flex-direction: column; gap: var(--sp-xs); }
.ac-list li {
display: flex;
justify-content: space-between;
align-items: baseline;
font-size: var(--t-sm);
font-weight: 300;
padding-bottom: var(--sp-xs);
border-bottom: 1px solid var(--border);
}
.ac-yr { font-size: var(--t-xs); color: var(--muted); }

.about-contact  { margin-top: var(--sp-lg); padding-top: var(--sp-md); border-top: 1px solid var(--border); }
.ac-cta-lbl     { font-size: var(--t-xs); font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: var(--sp-sm); }
.cta-link       { font-size: var(--t-md); font-weight: 300; letter-spacing: -0.01em; border-bottom: 1px solid currentColor; padding-bottom: .1em; display: inline-block; transition: opacity .2s; }
.cta-link:hover { opacity: .5; }
.cta-email      { display: block; margin-top: var(--sp-sm); font-size: var(--t-sm); }

/* ═══════════════════════════════════════
 ANIMATION
═══════════════════════════════════════ */
@keyframes fadeIn {
from { opacity: 0; transform: translateY(8px); }
to   { opacity: 1; transform: translateY(0); }
}
.fade { animation: fadeIn .3s ease both; }

/* ═══════════════════════════════════════
 MOBILE BAR
═══════════════════════════════════════ */
.mob-bar {
display: none;
position: fixed; top: 0; left: 0; right: 0;
z-index: 200;
background: var(--bg-side);
border-bottom: 1px solid var(--border);
padding: var(--sp-sm) var(--sp-md);
align-items: center;
justify-content: space-between;
}
.mob-brand { font-size: var(--t-md); font-weight: 300; letter-spacing: -.01em; }
.burger    { display: flex; flex-direction: column; gap: 5px; padding: 3px; }
.burger span { display: block; width: 20px; height: 1.5px; background: var(--text); transition: transform .25s, opacity .25s; }
.burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
.mob-overlay     { display: none; position: fixed; inset: 0; z-index: 190; background: rgba(0,0,0,.28); }
.mob-overlay.vis { display: block; }

/* ═══════════════════════════════════════
 COOKIE
═══════════════════════════════════════ */
.cookie {
position: fixed; bottom: var(--sp-md); left: 50%; transform: translateX(-50%);
background: var(--text); color: var(--bg);
padding: var(--sp-xs) var(--sp-md); border-radius: 100px;
display: flex; align-items: center; gap: var(--sp-sm);
font-size: var(--t-xs); white-space: nowrap;
z-index: 300; box-shadow: 0 4px 20px rgba(0,0,0,.16);
transition: opacity .4s, transform .4s;
}
.cookie.gone { opacity: 0; pointer-events: none; transform: translateX(-50%) translateY(10px); }
.cookie-ok   { background: var(--bg); color: var(--text); border-radius: 100px; padding: .22em .8em; font-size: var(--t-xs); font-weight: 500; transition: opacity .2s; }
.cookie-ok:hover { opacity: .7; }

/* ═══════════════════════════════════════
 RESPONSIVE — TABLET ≤ 900px
═══════════════════════════════════════ */
@media (max-width: 900px) {
body { display: block; }
.sidebar {
  position: fixed; top: 0; left: 0; height: 100%;
  z-index: 195; transform: translateX(-110%);
  transition: transform .3s cubic-bezier(.4,0,.2,1);
}
.sidebar.open { transform: translateX(0); }
.mob-bar      { display: flex; }
.main-inner, .about-inner { padding: calc(var(--gap) + 50px) var(--gap) var(--gap); }
.main-foot    { padding: var(--sp-sm) var(--gap); }

.dyn-grid[data-cols="3"]                  { grid-template-columns: repeat(2, 1fr); }
.dyn-grid[data-cols="3"] .dyn-tile.span-3 { grid-column: span 2; }
.home-grid                                { grid-template-columns: repeat(2, 1fr); }
.home-tile.span-3                         { grid-column: span 2; }
}

/* ═══════════════════════════════════════
 RESPONSIVE — MOBILE ≤ 560px
═══════════════════════════════════════ */
@media (max-width: 560px) {
.dyn-grid[data-cols="2"],
.dyn-grid[data-cols="3"] { grid-template-columns: 1fr; }
.dyn-tile.span-2,
.dyn-tile.span-3         { grid-column: span 1; }
.home-grid               { grid-template-columns: 1fr; }
.home-tile.span-2,
.home-tile.span-3        { grid-column: span 1; }
.cookie { white-space: normal; flex-direction: column; border-radius: 14px; text-align: center; width: calc(100% - 2 * var(--sp-md)); }
}

/* ═══════════════════════════════════════
 4K ≥ 2400px
═══════════════════════════════════════ */
@media (min-width: 2400px) {
:root { --sidebar: 360px; }
.dyn-grid[data-cols="3"] { grid-template-columns: repeat(4, 1fr); }
.home-grid               { grid-template-columns: repeat(5, 1fr); }
}