/* Shared styles. Dials: variance 6, motion 5, density 4 (developer portfolio).
   Theme: dark only, locked. Screenshots are dark UIs blended with `lighten`,
   so a light theme would break them.
   Radius system: surfaces 14px, images 10px, interactive pills full. */
:root{
  --bg:#1c1d22; --bg-raised:#24252c; --line:#34363f; --line-strong:#4a4d58;
  --text:#ecedf1; --text-2:#c3c6d3; --text-3:#9699a8;
  --accent:#9d92e0; --accent-soft:color-mix(in srgb, var(--accent) 14%, transparent);
  --font:"Geist",system-ui,sans-serif; --mono:"Geist Mono",ui-monospace,monospace;
  --r-surface:14px; --r-img:10px;
  --ease:cubic-bezier(.16,1,.3,1);
  --gutter:clamp(16px,4vw,40px);
  /* z-index scale: lightbox only */
  --z-lightbox:100;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.6 var(--font);-webkit-font-smoothing:antialiased}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.02em;text-wrap:balance}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
code{font:.86em/1 var(--mono);color:var(--text);background:var(--bg-raised);border:1px solid var(--line);padding:2px 6px;border-radius:6px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
::selection{background:color-mix(in srgb, var(--accent) 35%, transparent)}
.lighten{mix-blend-mode:lighten}

.wrap{max-width:1120px;margin:0 auto;padding:0 var(--gutter)}
.section{padding-block:clamp(56px,8vw,96px)}
.section + .section{border-top:1px solid var(--line)}
.h2{font-size:clamp(24px,3vw,30px);line-height:1.2;margin-bottom:24px}
.prose{max-width:65ch;display:grid;gap:18px;color:var(--text-2);font-size:16px;line-height:1.7}
.muted{color:var(--text-3)}

/* Top nav */
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.nav .brand{font-weight:600;letter-spacing:-.01em}
.link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-2);transition:color .2s var(--ease)}
.link:hover{color:var(--text)}
.link i{font-size:16px;transition:transform .3s var(--ease)}
.link:hover i.ph-arrow-left{transform:translateX(-3px)}
.link:hover i.ph-arrow-right,.link:hover i.ph-arrow-up-right{transform:translateX(3px)}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:999px;font:500 15px/1 var(--font);white-space:nowrap;transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease)}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--text);color:var(--bg)}
.btn-primary:hover{background:#fff}
.btn-ghost{border:1px solid var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent)}

/* Tags */
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{font:500 12.5px/1 var(--mono);padding:7px 11px;border-radius:999px;background:var(--bg-raised);border:1px solid var(--line);color:var(--text-2)}
.pill{display:inline-flex;align-items:center;font:500 13px/1 var(--font);padding:7px 12px;border-radius:999px;border:1px solid var(--line-strong);color:var(--text-2)}
.pill.accent{border-color:var(--accent);color:var(--accent)}

/* Detail-page hero: text left, phone right */
.hero{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:clamp(32px,6vw,80px);align-items:center;padding-block:clamp(32px,6vw,72px) clamp(48px,7vw,88px)}
.hero-title{display:flex;align-items:center;gap:18px;margin-bottom:22px}
.hero-title img{width:72px;height:72px;border-radius:var(--r-surface);flex:none}
.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.05}
.hero .kicker{font:500 13px/1 var(--mono);color:var(--accent);margin-bottom:10px}
.hero .lede{font-size:clamp(17px,1.6vw,19px);line-height:1.6;color:var(--text-2);max-width:48ch;margin-bottom:28px}
.hero-shot{justify-self:center;width:min(300px,100%);position:relative}
.hero-shot::before{content:"";position:absolute;inset:12% -18% 8%;background:radial-gradient(closest-side,var(--accent-soft),transparent);z-index:-1}
.hero-shot img{border-radius:22px;border:1px solid var(--line);aspect-ratio:9/19;object-fit:cover;object-position:top;width:100%}
@media (max-width:767px){
  .hero{grid-template-columns:1fr}
  .hero-shot{width:min(240px,70%)}
  .hero-title img{width:56px;height:56px}
}

/* Features: two-column grid, no boxes */
.features{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px clamp(32px,5vw,72px)}
.feature{border-top:1px solid var(--line-strong);padding-top:20px}
.feature h3{font-size:18px;line-height:1.35;margin-bottom:8px}
.feature p{color:var(--text-2);font-size:15px;line-height:1.65}
@media (max-width:767px){.features{grid-template-columns:1fr;gap:28px}}

/* Features: stacked rows, title left / body right (used on the generations page) */
.rows{display:grid;gap:0}
.rows .r{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:12px 48px;padding:22px 0;border-top:1px solid var(--line)}
.rows .r h3{font-size:17px;line-height:1.4}
.rows .r p{color:var(--text-2);font-size:15px;line-height:1.65;max-width:62ch}
@media (max-width:767px){.rows .r{grid-template-columns:1fr}}

/* Screens strip */
.screens{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 0 14px;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}
.screens figure{margin:0;flex:0 0 auto;width:clamp(180px,22vw,232px);scroll-snap-align:start;cursor:zoom-in}
.screens img{width:100%;border-radius:var(--r-img);border:1px solid var(--line);aspect-ratio:9/19;object-fit:cover;object-position:top;transition:transform .35s var(--ease),border-color .35s var(--ease)}
.screens figure:hover img{transform:translateY(-4px);border-color:var(--line-strong)}
.screens figcaption{font-size:13px;line-height:1.45;margin-top:10px;color:var(--text-3)}

/* Callout */
.note{background:var(--bg-raised);border:1px solid var(--line);border-radius:var(--r-surface);padding:clamp(24px,4vw,36px);display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px 20px;max-width:820px}
.note i{font-size:24px;color:var(--accent);margin-top:2px}
.note h2{font-size:20px;margin-bottom:8px}
.note p{color:var(--text-2);line-height:1.7}

/* Prev / next */
.pager{display:flex;justify-content:space-between;gap:16px;padding-block:32px 48px;border-top:1px solid var(--line)}
.pager a{display:grid;gap:4px;font-size:18px;font-weight:600;letter-spacing:-.01em;transition:color .2s var(--ease)}
.pager a span{font:400 13px/1 var(--font);color:var(--text-3);letter-spacing:0}
.pager a:hover{color:var(--accent)}
.pager a.next{text-align:right;margin-left:auto}

/* Lightbox */
.lightbox{position:fixed;inset:0;background:rgb(14 14 18 / .94);display:none;align-items:center;justify-content:center;flex-direction:column;padding:24px;z-index:var(--z-lightbox)}
.lightbox.open{display:flex}
.lightbox-img{max-width:88vw;max-height:80vh;object-fit:contain;border-radius:var(--r-img)}
.lightbox-caption{color:var(--text-2);font-size:14px;margin-top:14px;text-align:center}
.lightbox button{position:absolute;display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:999px;border:1px solid var(--line-strong);background:var(--bg);color:var(--text);font-size:20px;cursor:pointer;transition:border-color .2s,color .2s,transform .2s var(--ease)}
.lightbox button:hover{border-color:var(--accent);color:var(--accent)}
.lightbox button:active{transform:scale(.96)}
.lightbox-close{top:20px;right:20px}
.lightbox-prev{left:20px;top:50%;margin-top:-22px}
.lightbox-next{right:20px;top:50%;margin-top:-22px}
@media (max-width:600px){.lightbox-prev{left:8px}.lightbox-next{right:8px}}

/* Motion: load-in for hero, reveal on scroll. Only when motion is allowed. */
@media (prefers-reduced-motion:no-preference){
  .enter{opacity:0;transform:translateY(16px);animation:enter .8s var(--ease) forwards;animation-delay:calc(var(--i,0) * 90ms)}
  @keyframes enter{to{opacity:1;transform:none}}
  .js .reveal{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:calc(var(--i,0) * 70ms)}
  .js .reveal.in{opacity:1;transform:none}
}