/* Diakhère Gueye — portfolio. Clean canvas, playful primary-colour accents, professional. */
:root{
  --paper:#F7F6F2;         /* clean warm white */
  --card:#FFFFFF;
  --ink:#202124;           /* near-black text */
  --charcoal:#202124;
  --muted:#5F6368;
  --line:#E6E4DE;
  --blue:#4285F4;
  --red:#EA4335;
  --yellow:#FBBC05;
  --green:#34A853;
  --blue-ink:#1a56c4;      /* darker blue for text (AA contrast on cream) */
  --accent:#4285F4;
  --pageaccent:#4285F4;    /* overridden per case page via body style */
  --maxw:1140px; --readw:730px;
  --serif:"Fraunces",Georgia,serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:18px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 34px}
.read{max-width:var(--readw);margin:0 auto;padding:0 34px}
@media(max-width:620px){.wrap,.read{padding:0 22px}}
img{max-width:100%;display:block}

h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.06;letter-spacing:-.018em;margin:0;color:var(--ink)}
h1{font-size:clamp(2.7rem,7vw,5.4rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.7rem)}
h3{font-size:1.4rem;line-height:1.15}
p{margin:0 0 1.15em}
a{color:var(--ink)}
.accent{color:var(--blue)}
.accent-2{color:#1E8E3E}

/* accessibility: skip link + visible keyboard focus */
.skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--ink);color:#fff;padding:12px 18px;border-radius:0 0 10px 0;font-weight:600;text-decoration:none}
.skip:focus{left:0}
a:focus-visible,.btn:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}
.card:focus-visible,.featured:focus-visible{outline:3px solid var(--blue);outline-offset:4px}
footer a:focus-visible{outline-color:#fff}
.small{font-size:.76rem;letter-spacing:.15em;text-transform:uppercase;color:var(--muted);font-weight:700}
.lede{font-size:clamp(1.12rem,2vw,1.42rem);line-height:1.5;color:#3c4043;font-weight:400}

.anim [data-reveal],
.anim .case-hero>.read,
.anim .case-body .read>*{opacity:0;transform:translateY(16px);transition:opacity .65s cubic-bezier(.2,.7,.2,1),transform .65s cubic-bezier(.2,.7,.2,1)}
[data-reveal].in,
.case-hero>.read.in,
.case-body .read>*.in{opacity:1;transform:none}

/* layering + soft drifting colour field */
main{position:relative;z-index:1}
footer{position:relative;z-index:1}
.bgfx{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bgfx b{position:absolute;display:block;filter:blur(64px);opacity:.11;will-change:transform,translate;transition:translate .5s cubic-bezier(.2,.7,.2,1)}
@keyframes drift1{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(26px,-18px) scale(1.06)}}
@keyframes drift2{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-22px,16px) scale(1.08)}}
@keyframes drift3{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(18px,22px) scale(1.05)}}

/* hero art floats gently, drifts with the cursor */
.heroart{transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.heroart svg{animation:heroFloat 9s ease-in-out infinite}
@keyframes heroFloat{0%,100%{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-12px) rotate(1.4deg)}}

@media(prefers-reduced-motion:reduce){
  .bgfx{display:none}
  .heroart svg{animation:none}
  .anim [data-reveal],.anim .case-hero>.read,.anim .case-body .read>*{opacity:1;transform:none;transition:none}
}

/* closing reflection (used in place of a heading) */
.case-body .closing{margin-top:2em;padding-top:1.5em;border-top:1px solid var(--line);font-family:var(--serif);font-size:1.28rem;line-height:1.42;color:var(--ink)}

/* nav */
header.nav{position:sticky;top:0;z-index:20;background:rgba(247,246,242,.85);backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--line)}
header.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{font-family:var(--serif);font-size:1.22rem;font-weight:600;text-decoration:none}
.navlinks a{margin-left:28px;font-size:.95rem;font-weight:500;color:var(--ink);text-decoration:none;position:relative}
.navlinks a::after{content:"";position:absolute;left:0;bottom:-5px;width:0;height:2px;background:var(--blue);transition:width .25s}
.navlinks a:hover::after{width:100%}
@media(max-width:600px){.navlinks a{margin-left:18px;font-size:.85rem}}

/* hero */
.hero{padding:7vh 0 3vh}
.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:30px;align-items:center}
@media(max-width:820px){.hero-grid{grid-template-columns:1fr}}
.hero .kicker{color:var(--muted);font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:.82rem;margin-bottom:22px}
.hero .kicker::before{content:"";display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--blue);margin-right:11px;vertical-align:middle}
.hero h1{max-width:15ch}
.hero .lede{max-width:52ch;margin:28px 0 0}
.heroart{display:flex;justify-content:center}
.heroart svg{width:100%;max-width:340px;height:auto}
@media(max-width:820px){.heroart{display:none}}
.cta{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:13px 24px;font-weight:600;font-size:.96rem;text-decoration:none;border:1.5px solid var(--ink);color:var(--ink);background:transparent;transition:transform .12s,background .2s,color .2s,border-color .2s}
.btn:hover{transform:translateY(-2px)}
.btn.solid{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn.solid:hover{background:#2f68d6;border-color:#2f68d6}
.btn.ghost:hover{background:var(--ink);color:#fff}

/* work */
.section{padding:8vh 0 2vh}
.section .head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.section .head h2{display:flex;align-items:center;gap:14px}
.section .head h2::before{content:"";width:17px;height:17px;border-radius:5px;background:var(--blue);flex:none}

.featured{position:relative;display:block;background:var(--card);border:1px solid var(--line);color:var(--ink);border-radius:22px;padding:clamp(30px,5vw,56px);text-decoration:none;overflow:hidden;transition:transform .18s,box-shadow .18s}
.featured:hover{transform:translateY(-3px);box-shadow:0 24px 60px -34px rgba(66,133,244,.55)}
.featured::after{content:"";position:absolute;right:-58px;top:-58px;width:210px;height:210px;border-radius:50%;background:var(--blue);opacity:.12}
.featured::before{content:"";position:absolute;right:74px;bottom:-34px;width:82px;height:82px;border-radius:20px;background:var(--yellow);opacity:.18;transform:rotate(-10deg)}
.featured .tag{position:relative;display:inline-block;background:var(--blue);color:#fff;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:6px 13px;border-radius:999px}
.featured h3{position:relative;color:var(--ink);font-size:clamp(2rem,4.2vw,3.05rem);margin:20px 0 14px;max-width:20ch}
.featured p{position:relative;color:#3c4043;max-width:62ch;margin:0}
.featured .go{position:relative;display:inline-flex;align-items:center;gap:9px;margin-top:22px;color:var(--blue-ink);font-weight:700}

.cards{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:26px}
@media(max-width:720px){.cards{grid-template-columns:1fr}}
.card{position:relative;display:block;background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;text-decoration:none;color:var(--ink);transition:transform .18s,box-shadow .18s,border-color .18s}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 50px -28px rgba(32,33,36,.3);border-color:var(--c,var(--blue))}
.card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EEF0F2}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card:hover .thumb img{transform:scale(1.04)}
.card .body{padding:22px 26px 26px}
.card h3{font-size:1.5rem;margin:0 0 6px}
.card .meta{color:var(--muted);font-size:.9rem;margin-bottom:10px}
.card p{margin:0;color:#3c4043;font-size:.98rem}
.card .go{display:inline-block;margin-top:14px;color:var(--ink);font-weight:700}
.card:hover .go{color:var(--blue-ink)}

/* about */
.about-grid{display:grid;grid-template-columns:172px 1fr;gap:44px;margin-top:26px;align-items:start}
@media(max-width:720px){.about-grid{grid-template-columns:1fr;gap:24px}}
.about-grid .photo{position:relative;width:172px;aspect-ratio:4/5;border-radius:16px;overflow:hidden;border:1px solid var(--line)}
.about-grid .photo img{width:100%;height:100%;object-fit:cover}
.pull{font-family:var(--serif);font-size:clamp(1.4rem,2.6vw,2rem);line-height:1.22;margin:0 0 20px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 20px}
.chip{border:1.5px solid var(--line);border-radius:999px;padding:6px 14px;font-size:.85rem;color:#3c4043;font-weight:500;background:#fff}

/* case study */
.case-hero{padding:7vh 0 1vh}
.case-hero .back{font-size:.92rem;color:var(--muted);text-decoration:none;font-weight:600}
.case-hero .back:hover{color:var(--ink)}
.case-hero h1{font-size:clamp(2.4rem,6vw,4.4rem);margin:20px 0 0;max-width:18ch}
.case-hero h1::before{content:"";display:block;width:34px;height:34px;border-radius:9px;background:var(--pageaccent);margin-bottom:22px}
.case-hero .sub{font-size:clamp(1.1rem,2vw,1.4rem);color:#3c4043;margin-top:18px;max-width:60ch}
.meta-grid{display:grid;grid-template-columns:repeat(3,auto);gap:6px 40px;margin:28px 0 6px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0}
.meta-grid .m .k{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700}
.meta-grid .m .v{font-size:.98rem}
@media(max-width:620px){.meta-grid{grid-template-columns:1fr 1fr;gap:14px 24px}}
.case-body{padding:2vh 0 3vh}
.case-body h2{margin:1.7em 0 .4em;font-size:clamp(1.5rem,3vw,2rem)}
.case-body p{color:#2b2c2e}
figure{margin:2em 0}
figure img{width:100%;border-radius:14px;border:1px solid var(--line);background:#fff}
figure figcaption{margin-top:12px;font-size:.86rem;color:var(--muted)}
.figrow{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:2em 0}
.figrow figure{margin:0}
@media(max-width:620px){.figrow{grid-template-columns:1fr}}
.callout{background:color-mix(in srgb, var(--pageaccent) 9%, #fff);border-left:5px solid var(--pageaccent);color:var(--ink);border-radius:12px;padding:24px 28px;margin:1.8em 0;font-family:var(--serif);font-size:1.3rem;line-height:1.35}
.callout strong{color:var(--ink)}

/* numbered "what I did" list — scannable, replaces a wall of prose */
.dolist{list-style:none;padding:0;margin:1.7em 0;counter-reset:d}
.dolist li{counter-increment:d;position:relative;padding:17px 0 17px 56px;border-top:1px solid var(--line)}
.dolist li:last-child{border-bottom:1px solid var(--line)}
.dolist li::before{content:counter(d,decimal-leading-zero);position:absolute;left:0;top:16px;font-family:var(--serif);font-size:1.3rem;font-weight:700;color:var(--pageaccent)}
.dolist h3{font-size:1.16rem;margin:0 0 3px}
.dolist p{margin:0;color:#3c4043;font-size:1rem;line-height:1.55}

/* inline diagram figure */
.diagram{margin:2.2em 0}
.diagram .box{border:1px solid var(--line);border-radius:16px;background:#fff;padding:26px 24px}
.diagram svg{width:100%;height:auto;display:block}
.diagram figcaption{margin-top:12px;font-size:.86rem;color:var(--muted)}

/* footer */
footer{background:#202124;color:#F7F6F2;margin-top:11vh;padding:10vh 0 8vh}
footer .flabel{color:#9aa0a6;font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:.8rem;margin-bottom:22px}
footer .flabel::before{content:"";display:block;width:66px;height:14px;margin-bottom:20px;
  background:
    radial-gradient(circle at 7px 7px, var(--blue) 6px, transparent 7px) 0 0/18px 14px no-repeat,
    radial-gradient(circle at 7px 7px, var(--red) 6px, transparent 7px) 16px 0/18px 14px no-repeat,
    radial-gradient(circle at 7px 7px, var(--yellow) 6px, transparent 7px) 32px 0/18px 14px no-repeat,
    radial-gradient(circle at 7px 7px, var(--green) 6px, transparent 7px) 48px 0/18px 14px no-repeat}
footer h2{color:#fff;font-size:clamp(2.2rem,6vw,4.4rem);max-width:16ch}
footer .frow{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
footer .frow a{color:#fff;text-decoration:none;border:1.5px solid rgba(255,255,255,.28);border-radius:999px;padding:12px 22px;font-weight:600;transition:background .2s,color .2s}
footer .frow a:hover{background:#fff;color:#202124}