/* =========================================================
   Alexandre Perez — personal site
   Aesthetic: editorial deep-tech · warm paper · single teal accent
   Display: Fraunces · Body: Hanken Grotesk · Mono: JetBrains Mono
   Signature motif: auscultation waveform
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400&family=Hanken+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --paper:#F4F1EA;
  --paper-2:#ECE6DA;
  --paper-3:#E4DDCD;
  --ink:#15171C;
  --ink-2:#3a3e47;
  --ink-soft:#6c6f78;
  --line:rgba(21,23,28,.14);
  --line-soft:rgba(21,23,28,.08);
  --accent:#0C6B5B;
  --accent-2:#14A78E;
  --accent-deep:#073d34;
  --max:1160px;
  --gut:clamp(20px,5vw,64px);
  --font-display:'Fraunces',Georgia,'Times New Roman',serif;
  --font-body:'Hanken Grotesk',-apple-system,BlinkMacSystemFont,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  font-size:17px;
  font-weight:400;
  letter-spacing:.005em;
  overflow-x:hidden;
  position:relative;
  min-height:100vh;
}
/* grain + faint engineering grid */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(to right,var(--line-soft) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line-soft) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(120% 120% at 50% 0%,#000 0%,transparent 75%);
          mask-image:radial-gradient(120% 120% at 50% 0%,#000 0%,transparent 75%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.035;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
main,.site-header,.site-footer{position:relative;z-index:1}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:var(--paper)}

.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--gut)}

/* ---------- Typography ---------- */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:500;line-height:1.04;letter-spacing:-.018em;font-optical-sizing:auto}
.eyebrow{
  font-family:var(--font-mono);font-size:.72rem;font-weight:500;letter-spacing:.22em;
  text-transform:uppercase;color:var(--accent);display:inline-flex;align-items:center;gap:.6em;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);opacity:.6}
.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--ink-2);max-width:60ch}
.mono{font-family:var(--font-mono)}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--paper) 82%,transparent);
  backdrop-filter:blur(12px) saturate(1.1);-webkit-backdrop-filter:blur(12px) saturate(1.1);
  border-bottom:1px solid var(--line-soft);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--font-display);font-weight:600;font-size:1.06rem;letter-spacing:-.02em}
.brand .mark{width:26px;height:26px;flex:none;color:var(--accent)}
.brand small{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.18em;color:var(--ink-soft);text-transform:uppercase;display:block;font-weight:500;margin-top:1px}
.nav-links{display:flex;align-items:center;gap:30px;list-style:none}
.nav-links a{font-size:.9rem;font-weight:500;color:var(--ink-2);position:relative;padding:6px 0;transition:color .25s}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1.5px;background:var(--accent);transition:right .3s var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.nav-links a.active{color:var(--ink)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;
  border:1px solid var(--ink);border-radius:999px;padding:9px 16px;color:var(--ink);transition:.28s var(--ease)}
.nav-cta:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;width:42px;height:42px;color:var(--ink)}
.nav-toggle span{display:block;width:24px;height:1.6px;background:currentColor;margin:5px auto;transition:.3s var(--ease)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;
  padding:13px 22px;border-radius:999px;transition:.28s var(--ease);cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);background:var(--paper-2)}
.btn svg{width:15px;height:15px}

/* ---------- Hero ---------- */
.hero{padding-top:clamp(48px,8vw,96px);padding-bottom:clamp(40px,6vw,72px);position:relative}
.hero-grid{display:grid;grid-template-columns:1.45fr .9fr;gap:clamp(28px,5vw,72px);align-items:center}
.hero h1{font-size:clamp(2.7rem,7vw,5.4rem);font-weight:500;margin:.28em 0 .22em}
.hero h1 em{font-style:italic;color:var(--accent);font-weight:500}
.hero .role{font-family:var(--font-mono);font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2)}
.hero .lead{margin-top:.4em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.portrait{position:relative;width:100%;max-width:360px;margin-inline:auto;aspect-ratio:1/1}
.portrait img{width:100%;height:100%;object-fit:cover;object-position:50% 35%;border-radius:50%;
  border:1px solid var(--line);background:var(--paper-2);display:block}
.portrait::before{content:"";position:absolute;inset:-10px;border:1px solid var(--line);border-radius:50%;
  -webkit-mask:linear-gradient(135deg,#000 30%,transparent 70%);mask:linear-gradient(135deg,#000 30%,transparent 70%)}
.portrait .tag{position:absolute;bottom:14px;left:-14px;background:var(--ink);color:var(--paper);
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;padding:8px 13px;border-radius:8px}

/* waveform */
.waveform{width:100%;height:54px;color:var(--accent);margin-top:6px;overflow:visible}
.waveform path{fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
  stroke-dasharray:1400;stroke-dashoffset:1400;animation:draw 2.4s var(--ease) .3s forwards}
.waveform .pulse{animation:draw 2.4s var(--ease) .3s forwards, breathe 4.5s ease-in-out 2.8s infinite}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes breathe{0%,100%{opacity:.5}50%{opacity:1}}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-soft);
  border:1px solid var(--line-soft);border-radius:14px;overflow:hidden;margin-top:clamp(34px,5vw,56px)}
.stat{background:var(--paper);padding:24px 22px}
.stat .num{font-family:var(--font-display);font-size:clamp(1.8rem,3.4vw,2.7rem);font-weight:500;letter-spacing:-.02em;line-height:1}
.stat .num span{color:var(--accent)}
.stat .lbl{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);margin-top:10px;line-height:1.45}

/* ---------- Sections ---------- */
.section{padding-block:clamp(56px,8vw,104px);border-top:1px solid var(--line-soft)}
.section-head{display:flex;align-items:baseline;gap:18px;margin-bottom:clamp(28px,4vw,48px);flex-wrap:wrap}
.section-head .idx{font-family:var(--font-mono);font-size:.8rem;color:var(--accent);letter-spacing:.1em}
.section-head h2{font-size:clamp(1.9rem,4vw,3rem);font-weight:500}
.section-head .sub{font-size:clamp(1.9rem,4vw,3rem);color:var(--ink-soft);font-family:var(--font-display);font-style:italic;font-weight:400}
.section-intro{max-width:64ch;color:var(--ink-2);font-size:1.06rem;margin-bottom:8px}

/* ---------- Timeline ---------- */
.timeline{position:relative;margin-top:18px}
.timeline::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--line)}
.t-item{position:relative;padding:0 0 38px 34px}
.t-item::before{content:"";position:absolute;left:-4px;top:8px;width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--paper)}
.t-item:last-child{padding-bottom:0}
.t-when{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;color:var(--accent);text-transform:uppercase}
.t-role{font-family:var(--font-display);font-size:1.32rem;font-weight:500;margin:5px 0 1px}
.t-org{color:var(--ink-soft);font-size:.95rem;margin-bottom:10px}
.t-org .place{color:var(--ink-2)}
.t-item ul{list-style:none;display:flex;flex-direction:column;gap:7px}
.t-item ul li{position:relative;padding-left:18px;color:var(--ink-2);font-size:.97rem}
.t-item ul li::before{content:"—";position:absolute;left:0;color:var(--accent);opacity:.55}

/* ---------- Cards ---------- */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:26px 24px;display:flex;flex-direction:column;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);position:relative;overflow:hidden}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -24px rgba(7,61,52,.5);border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
.card .kind{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.card h3{font-size:1.2rem;font-weight:500;line-height:1.2;margin-bottom:8px}
.card p{color:var(--ink-2);font-size:.95rem;flex:1}
.card .meta{font-family:var(--font-mono);font-size:.72rem;color:var(--ink-soft);margin-top:16px;letter-spacing:.02em}
.card .open{display:inline-flex;align-items:center;gap:7px;margin-top:16px;font-family:var(--font-mono);font-size:.74rem;
  letter-spacing:.06em;text-transform:uppercase;color:var(--ink);align-self:flex-start}
.card .open svg{width:14px;height:14px;transition:transform .3s var(--ease)}
.card:hover .open svg{transform:translate(3px,-3px)}
.card.feature{background:var(--accent-deep);color:var(--paper);border-color:var(--accent-deep)}
.card.feature .kind,.card.feature .open{color:var(--accent-2)}
.card.feature h3,.card.feature p{color:var(--paper)}
.card.feature p{color:color-mix(in srgb,var(--paper) 82%,transparent)}

/* ---------- Feature / split blocks ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);align-items:center}
.panel{background:var(--paper-2);border:1px solid var(--line-soft);border-radius:18px;padding:clamp(24px,3vw,38px)}
.kpis{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.kpi{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.04em;border:1px solid var(--line);border-radius:999px;padding:7px 13px;color:var(--ink-2)}
.figure{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--paper-2)}
.figure img{width:100%}
.figure figcaption{font-family:var(--font-mono);font-size:.72rem;color:var(--ink-soft);padding:12px 16px;border-top:1px solid var(--line-soft);letter-spacing:.02em}

/* prose */
.prose p{color:var(--ink-2);margin-bottom:16px;max-width:68ch}
.prose p strong{color:var(--ink);font-weight:600}

/* ---------- Video ---------- */
.video{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;background:var(--ink);cursor:pointer}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-facade{position:absolute;inset:0;display:grid;place-items:center;background:
  radial-gradient(120% 120% at 70% 20%,#0f3a33,#0a1614)}
.video-facade .play{width:74px;height:74px;border-radius:50%;background:var(--paper);display:grid;place-items:center;
  transition:transform .3s var(--ease);box-shadow:0 10px 40px -12px rgba(0,0,0,.6)}
.video-facade .play svg{width:24px;height:24px;color:var(--accent-deep);margin-left:3px}
.video:hover .play{transform:scale(1.08)}
.video-facade .vlabel{position:absolute;left:20px;bottom:18px;font-family:var(--font-mono);font-size:.72rem;
  letter-spacing:.1em;text-transform:uppercase;color:color-mix(in srgb,var(--paper) 80%,transparent)}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);padding-block:clamp(48px,6vw,80px);margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.footer-grid h4{font-family:var(--font-display);font-size:1.6rem;font-weight:500;margin-bottom:10px}
.footer-grid .col-title{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:14px}
.footer-grid ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.footer-grid a{color:var(--ink-2);transition:color .25s;font-size:.95rem}
.footer-grid a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:48px;padding-top:22px;border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:.72rem;color:var(--ink-soft);letter-spacing:.04em}

/* ---------- Reveal animations ---------- */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}
[data-reveal][data-delay="1"]{transition-delay:.08s}
[data-reveal][data-delay="2"]{transition-delay:.16s}
[data-reveal][data-delay="3"]{transition-delay:.24s}
[data-reveal][data-delay="4"]{transition-delay:.32s}

/* hero load stagger */
.hero [data-load]{opacity:0;transform:translateY(18px);animation:rise .9s var(--ease) forwards}
.hero [data-load="1"]{animation-delay:.05s}
.hero [data-load="2"]{animation-delay:.15s}
.hero [data-load="3"]{animation-delay:.25s}
.hero [data-load="4"]{animation-delay:.35s}
.hero [data-load="5"]{animation-delay:.5s}
@keyframes rise{to{opacity:1;transform:none}}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .portrait{max-width:300px;order:-1}
  .stats{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links,.nav .nav-cta{display:none}
  .nav-toggle{display:block}
  .site-header.open .nav-links{display:flex;position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:0;
    background:var(--paper);border-bottom:1px solid var(--line);padding:8px var(--gut) 18px}
  .site-header.open .nav-links a{padding:14px 0;border-bottom:1px solid var(--line-soft);width:100%}
  .site-header.open .nav-links a::after{display:none}
  .site-header.open .nav-cta{display:inline-flex;margin:14px var(--gut) 0}
  .site-header.open .nav{flex-wrap:wrap}
}
@media (max-width:560px){
  .stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section-head .sub{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  [data-reveal]{opacity:1;transform:none}
  .hero [data-load]{opacity:1;transform:none}
  .waveform path{stroke-dashoffset:0}
  html{scroll-behavior:auto}
}

/* ---------- Media frames & image cards ---------- */
.media-frame{display:block;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--paper-2)}
.media-frame img{width:100%;display:block}
.media-frame .cap{display:block;font-family:var(--font-mono);font-size:.7rem;color:var(--ink-soft);padding:11px 15px;border-top:1px solid var(--line-soft);letter-spacing:.03em;overflow-wrap:break-word;word-break:break-word}

.video-wide{max-width:920px;margin:clamp(30px,5vw,56px) auto 0}
.video-wide .video{aspect-ratio:16/9}
.video-cap{text-align:center;font-size:.92rem;color:var(--ink-soft);margin-top:14px}

.card.has-thumb{padding:0;overflow:hidden}
.card-thumb{aspect-ratio:16/11;overflow:hidden;background:var(--paper-3);border-bottom:1px solid var(--line)}
.card-thumb img{width:100%;height:100%;object-fit:cover;object-position:50% 12%;transition:transform .55s var(--ease)}
.card.has-thumb:hover .card-thumb img{transform:scale(1.045)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.card.has-thumb .when{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:8px}

/* ---------- Self-hosted (local) video ---------- */
.video-local{background:var(--ink);cursor:default}
.video-local video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border:0;display:block}

/* Link-out video facade (opens YouTube in a new tab) */
.video-link{display:block;cursor:pointer;text-decoration:none}

/* Thumbnail image inside a link-out video facade */
.video-thumb{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 42%}
.video-facade.on-image{background:linear-gradient(180deg,rgba(8,18,16,.18),rgba(8,18,16,.58))}

/* Retrospective images: center framing; Results table shown in full */
.grid.retro .card-thumb img{object-position:50% 50%}
.card-thumb.fit-contain{background:var(--paper-2)}
.card-thumb.fit-contain img{object-fit:contain;object-position:50% 50%}