/* ============ theme tokens ============ */
:root{
  --cyan:#30C8F7; --blue:#1F65F4;
  --font-head:'Manrope',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
  --maxw:1180px; --radius:18px;
}
html[data-theme="dark"]{
  --bg:#070D1B; --bg2:#0A1222; --bg3:#0F1B33;
  --card:rgba(255,255,255,.05); --card-bd:rgba(255,255,255,.08);
  --ink:#E7EEF8; --muted:#9DB0CC; --heading:#FFFFFF; --line:rgba(255,255,255,.12);
  --link:#30C8F7;
  --callout-bg:rgba(48,200,247,.08); --callout-bd:rgba(48,200,247,.25);
  --chip-bg:rgba(48,200,247,.14); --chip-ink:#7FDFFF;
  --pill-bg:rgba(48,200,247,.14); --pill-ink:#8FE3FF;
  --tile-bg:#0B1730;
  --tbl-head:#0B1428;
  --glow-op:.16; --glow-op2:.12;
}
html[data-theme="light"]{
  --bg:#F5F8FC; --bg2:#FFFFFF; --bg3:#F0F6FE;
  --card:#FFFFFF; --card-bd:#E2EAF4;
  --ink:#33425B; --muted:#5B6B82; --heading:#0F172A; --line:#E2EAF4;
  --link:#1F65F4;
  --callout-bg:#EAF4FD; --callout-bd:#CFE6FA;
  --chip-bg:#EAF4FD; --chip-ink:#1F65F4;
  --pill-bg:#EAF4FD; --pill-ink:#1F65F4;
  --tile-bg:#DCE7F5;
  --tbl-head:#0F1B33;
  --glow-op:.08; --glow-op2:.06;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.15;letter-spacing:-.02em;color:var(--heading)}
:focus-visible{outline:3px solid var(--cyan);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--cyan);color:var(--navy,#0A1222);padding:.6rem 1rem;font-weight:700;z-index:200}
.skip-link:focus{left:1rem;top:1rem}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,18,34,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{max-width:var(--maxw);margin:auto;display:flex;align-items:center;padding:.75rem 1.25rem;gap:.8rem}
.wordmark{display:flex;align-items:center}
.wordmark:hover{text-decoration:none}
.logo-img{height:27px;width:auto;filter:brightness(1.15)}
.nav-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.25);border-radius:8px;padding:.4rem .6rem;color:#fff;cursor:pointer}
.nav-toggle svg{display:block}
.theme-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.25);border-radius:999px;width:36px;height:36px;color:#fff;cursor:pointer;align-items:center;justify-content:center;flex:none}
.theme-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.theme-toggle svg{display:block}
html[data-theme="dark"] .ic-moon{display:none}
html[data-theme="light"] .ic-sun{display:none}
.main-nav{display:flex;align-items:center;gap:1.4rem;margin-left:auto}
.main-nav .lang-switch{margin-left:-.6rem}
.main-nav a{color:#C7D3E4;font-size:.9rem;font-weight:600;letter-spacing:.02em}
.main-nav a:hover{color:var(--cyan);text-decoration:none}
.lang-switch{display:inline-flex;border:1px solid rgba(255,255,255,.25);border-radius:999px;overflow:hidden;margin-left:.4rem}
.lang-switch a,.lang-switch span{padding:.3rem .75rem;font-size:.8rem;font-weight:700;color:#C7D3E4}
.lang-switch .active{background:var(--cyan);color:#0A1222}
.lang-switch a:hover{color:#fff;text-decoration:none}
.header-lang{display:none}

/* ============ ambient fx ============ */
.fx{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.fx i{position:absolute;border-radius:50%;will-change:transform,opacity}
.fx .b1{width:520px;height:520px;background:radial-gradient(circle,rgba(48,200,247,var(--glow-op)),transparent 70%);top:-12%;right:8%;animation:drift1 34s ease-in-out infinite alternate}
.fx .b2{width:420px;height:420px;background:radial-gradient(circle,rgba(31,101,244,var(--glow-op2)),transparent 70%);bottom:-14%;left:4%;animation:drift2 40s ease-in-out infinite alternate}
.fx .b3{width:300px;height:300px;background:radial-gradient(circle,rgba(48,200,247,var(--glow-op2)),transparent 70%);top:40%;left:45%;animation:drift3 26s ease-in-out infinite alternate}
.fx .sp{width:4px;height:4px;background:#BFEFFF;opacity:.55;box-shadow:0 0 8px rgba(48,200,247,.8);animation:twinkle 7s ease-in-out infinite}
.fx .s1{top:18%;left:12%}.fx .s2{top:30%;left:78%;animation-delay:1.4s}
.fx .s3{top:64%;left:22%;animation-delay:2.8s}.fx .s4{top:12%;left:55%;animation-delay:.8s}
.fx .s5{top:72%;left:68%;animation-delay:2s}.fx .s6{top:44%;left:38%;animation-delay:3.6s}
@keyframes drift1{from{transform:translate(0,0)}to{transform:translate(-60px,50px)}}
@keyframes drift2{from{transform:translate(0,0)}to{transform:translate(70px,-40px)}}
@keyframes drift3{from{transform:translate(0,0) scale(1)}to{transform:translate(-40px,-30px) scale(1.15)}}
@keyframes twinkle{0%,100%{opacity:.15}50%{opacity:.6}}
@media (prefers-reduced-motion:reduce){.fx{display:none}}

/* ============ sections ============ */
.section{padding:5.5rem 1.25rem;background:var(--bg);position:relative;transition:background .3s}
.section.alt{background:var(--bg2)}
.container{max-width:var(--maxw);margin:auto;position:relative;z-index:1}
.section.dark{background:linear-gradient(160deg,#050A15 0%,#0A1222 55%,#0F1B33 100%);color:#E7EEF8;overflow:hidden}
.section.dark::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(48,200,247,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(48,200,247,.05) 1px,transparent 1px);background-size:56px 56px;pointer-events:none}
.section.dark .kicker{color:var(--cyan)}
.section.dark .section-title,.section.dark h3{color:#fff}
.kicker{display:inline-block;font-family:var(--font-head);font-weight:700;font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;color:var(--link);margin-bottom:.9rem}
.kicker::after{content:"";display:block;height:2px;width:44px;background:currentColor;margin-top:.5rem;opacity:.7}
.section-title{font-size:clamp(1.9rem,4vw,2.9rem);font-weight:800;margin-bottom:1rem}
.section-lede{max-width:52rem;color:var(--muted);font-size:1.06rem;margin-bottom:2.5rem}
.dark .section-lede{color:#9DB0CC}

/* ============ hero ============ */
.hero{padding:7rem 1.25rem 6rem;position:relative;overflow:hidden;background:linear-gradient(150deg,#050A15 0%,#0A1222 55%,#0D2244 100%);color:#fff}
.hero-inner{max-width:var(--maxw);margin:auto;display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center;position:relative;z-index:1}
.hero .kicker{color:var(--cyan)}
.hero h1{font-size:clamp(2.4rem,5.5vw,4rem);font-weight:800;margin-bottom:1rem;color:#fff}
.hero-sub{font-size:1.15rem;color:#B9C8DE;max-width:34rem;margin-bottom:1.4rem}
.hero-line{color:#8FA3C0;margin-bottom:2rem;max-width:36rem}
.hero-badges{display:flex;flex-wrap:wrap;gap:.8rem}
.badge{display:inline-flex;align-items:center;gap:.5rem;border:1px solid rgba(48,200,247,.45);color:#fff;padding:.55rem 1.1rem;border-radius:999px;font-weight:600;font-size:.85rem;background:rgba(48,200,247,.08);transition:.2s}
.badge:hover{background:rgba(48,200,247,.2);text-decoration:none;transform:translateY(-2px)}
.badge .yr{color:var(--cyan);font-weight:800}
.hero-media{position:relative}
.hero-media img{border-radius:var(--radius);box-shadow:0 30px 80px rgba(0,0,0,.5);width:100%;object-fit:cover}
.hero-media::after{content:"H₂";position:absolute;right:-14px;top:-14px;background:var(--cyan);color:#0A1222;font-family:var(--font-head);font-weight:800;padding:.55rem .8rem;border-radius:12px;font-size:1.1rem;box-shadow:0 10px 30px rgba(48,200,247,.35);z-index:2}
.hero-caption{font-size:.78rem;color:#7E92B3;margin-top:.7rem}

/* ============ about ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:3rem}
.stat{background:var(--card);border:1px solid var(--card-bd);border-radius:var(--radius);padding:1.6rem 1.2rem;text-align:center}
.stat .num{font-family:var(--font-head);font-size:2.6rem;font-weight:800;color:var(--link)}
.stat .lbl{font-size:.85rem;color:var(--muted);font-weight:600}
.hl-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.9rem;margin-bottom:2.5rem}
.hl{display:flex;gap:.9rem;align-items:flex-start;background:var(--card);border:1px solid var(--card-bd);border-radius:14px;padding:.95rem 1.1rem}
.hl .chip{flex:none;font-family:var(--font-head);font-weight:800;font-size:.78rem;letter-spacing:.04em;color:var(--chip-ink);background:var(--chip-bg);border-radius:999px;padding:.32rem .8rem;white-space:nowrap}
.hl p{font-size:.92rem;color:var(--ink)}
.vision{position:relative;background:linear-gradient(150deg,#08101F 0%,#0F1B33 60%,#122A4E 100%);color:#E7EEF8;border:1px solid rgba(48,200,247,.3);border-radius:var(--radius);padding:2.8rem;overflow:hidden;box-shadow:0 0 70px rgba(48,200,247,.1)}
.vision::before{content:"H₂";position:absolute;right:1.4rem;top:-2rem;font-family:var(--font-head);font-weight:800;font-size:7rem;color:rgba(48,200,247,.08)}
.vision::after{content:"";position:absolute;left:-80px;bottom:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(48,200,247,.14),transparent 70%)}
.vision h3{font-size:1.5rem;margin-bottom:1rem;color:#fff}
.vision>p{font-size:1rem;color:#C2D0E6;max-width:56rem}
.vision-quote{margin-top:2rem;padding-top:1.6rem;border-top:1px solid rgba(48,200,247,.2);position:relative;padding-left:3rem}
.vision-quote::before{content:"“";position:absolute;left:0;top:.4rem;font-family:var(--font-head);font-size:3.6rem;font-weight:800;color:var(--cyan);line-height:1}
.vision-quote p{font-family:var(--font-head);font-size:clamp(1.15rem,2.2vw,1.5rem);font-weight:700;color:#fff;line-height:1.4;max-width:50rem}
.vision-quote footer{font-size:.85rem;font-weight:600;color:#8FA3C0;margin-top:.9rem}

/* ============ timeline ============ */
.timeline{position:relative;margin-left:.6rem;padding-left:2.2rem;border-left:2px solid var(--line)}
.tl-item{position:relative;padding:0 0 1.7rem}
.tl-item::before{content:"";position:absolute;left:calc(-2.2rem - 7px);top:.45rem;width:12px;height:12px;border-radius:50%;background:var(--cyan);border:3px solid var(--bg2);box-shadow:0 0 0 2px var(--cyan)}
.tl-year{font-family:var(--font-head);font-weight:800;color:var(--link);font-size:.95rem}
.tl-title{font-family:var(--font-head);font-weight:700;font-size:1.05rem;color:var(--heading)}
.tl-desc{color:var(--muted);font-size:.92rem;max-width:46rem}
.tl-item:nth-child(odd) .tl-desc{margin-left:auto}
@media(min-width:960px){
  .timeline{margin-left:0;padding-left:0;border-left:none}
  .timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;margin-left:-1px;background:var(--line)}
  .tl-item{width:calc(50% - 3rem)}
  .tl-item:nth-child(odd){margin-right:auto;text-align:right}
  .tl-item:nth-child(even){margin-left:auto}
  .tl-item:nth-child(odd)::before{left:auto;right:calc(-3rem - 9px)}
  .tl-item:nth-child(even)::before{left:calc(-3rem - 9px)}
}

/* ============ journey ============ */
.chapter{padding:3rem 0;border-top:1px solid var(--line)}
.chapter:first-of-type{border-top:none;padding-top:0}
.chapter-head{display:flex;gap:1.4rem;align-items:baseline;margin-bottom:1.2rem}
.ch-num{font-family:var(--font-head);font-weight:800;font-size:2.6rem;color:var(--cyan);line-height:1}
.ch-title{font-size:clamp(1.4rem,2.6vw,1.9rem);font-weight:800}
.ch-intro{color:var(--muted);max-width:56rem;margin-bottom:1.6rem}
.sub{margin:2rem 0}
.sub-head{display:flex;gap:1rem;align-items:baseline;margin-bottom:.6rem}
.sub-year{font-family:var(--font-head);font-weight:800;color:var(--link);font-size:.85rem;letter-spacing:.08em;white-space:nowrap}
.sub-title{font-family:var(--font-head);font-weight:700;font-size:1.15rem;color:var(--heading)}
.sub p{color:var(--ink);max-width:56rem;margin-bottom:.8rem}
.sub ul{margin:0 0 .8rem 1.2rem;color:var(--ink);font-size:.95rem}
.sub li{margin-bottom:.3rem}
@media(min-width:960px){
  .sub.split{display:grid;grid-template-columns:55fr 45fr;gap:2.5rem;align-items:start}
  .sub.split.flip .sub-media{order:-1}
}
.callout{background:var(--callout-bg);border:1px solid var(--callout-bd);border-radius:12px;padding:1rem 1.3rem;margin:1rem 0;max-width:56rem}
.callout strong{display:block;font-family:var(--font-head);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--link);margin-bottom:.3rem}
.callout p{margin:0;color:var(--ink);font-size:.93rem}
.fig-row ~ .callout{max-width:none}
.fig-row{display:grid;gap:1rem;margin:1.2rem 0}
.fig-row.c2{grid-template-columns:repeat(2,1fr)}
.fig-row.c3{grid-template-columns:repeat(3,1fr)}
figure{background:var(--card);border:1px solid var(--card-bd);border-radius:14px;overflow:hidden;transition:.25s}
figure img{width:100%;cursor:zoom-in;transition:transform .3s}
figure:hover img{transform:scale(1.02)}
figcaption{font-size:.8rem;color:var(--muted);padding:.6rem .9rem}
/* image tiles: uniform 4:3 */
figure.tile>img,figure.tile .imw img{aspect-ratio:4/3;object-fit:cover;object-position:center 22%}
figure.tile{position:relative}
.imw{display:block;position:relative;overflow:hidden;background:var(--tile-bg)}
.imw-bg{position:absolute;inset:-15%;background-size:cover;background-position:center;filter:blur(18px) brightness(.55);transform:scale(1.1)}
.imw img{position:relative;z-index:1;object-fit:contain}
.sub-media figure{margin:0}
.sub-media .tile>img,.sub-media .imw img{aspect-ratio:4/3}

/* ============ technology ============ */
.tech-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem;margin-bottom:2.6rem}
.tech-card{background:rgba(255,255,255,.05);border:1px solid rgba(48,200,247,.2);border-radius:var(--radius);padding:1.8rem;transition:.25s}
.tech-card:hover{border-color:var(--cyan);transform:translateY(-3px)}
.tech-card .tno{font-family:var(--font-head);font-weight:800;color:var(--cyan);font-size:.8rem;letter-spacing:.2em}
.tech-card h3{color:#fff;font-size:1.25rem;margin:.5rem 0 .8rem}
.tech-card p{color:#B9C8DE;font-size:.94rem;margin-bottom:.8rem}
.tech-card ul{margin-left:1.1rem;color:#9DB0CC;font-size:.9rem}
.tech-card li{margin-bottom:.3rem}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;counter-reset:step;margin-top:1.4rem}
.step{background:rgba(48,200,247,.07);border:1px solid rgba(48,200,247,.18);border-radius:14px;padding:1.3rem 1.1rem;counter-increment:step}
.step::before{content:counter(step,decimal-leading-zero);display:block;font-family:var(--font-head);font-weight:800;color:var(--cyan);font-size:1.3rem;margin-bottom:.4rem}
.step p{color:#C2D0E6;font-size:.9rem}
.dark figure{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12)}
.dark figcaption{color:#9DB0CC}

/* ============ patents ============ */
.pat-table{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:0 8px 30px rgba(5,8,15,.15)}
.pat-table th{background:var(--tbl-head);color:#fff;font-family:var(--font-head);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;text-align:left;padding:.9rem 1.1rem}
.pat-table td{padding:.95rem 1.1rem;border-top:1px solid var(--line);font-size:.92rem;vertical-align:top;color:var(--ink)}
.pat-table td:first-child{font-weight:700;font-family:var(--font-head);white-space:nowrap;color:var(--heading)}
.pat-status{display:inline-block;background:var(--pill-bg);color:var(--pill-ink);font-weight:600;font-size:.8rem;border-radius:999px;padding:.25rem .8rem}

/* ============ recognition ============ */
.award-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-bottom:3rem}
.award{background:var(--card);border:1px solid var(--card-bd);border-radius:var(--radius);padding:1.5rem;transition:.25s}
.award:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(5,8,15,.18)}
.award .yr{font-family:var(--font-head);font-weight:800;color:var(--cyan);font-size:.85rem;letter-spacing:.1em}
.award h3{font-size:1.05rem;margin:.4rem 0 .5rem}
.award p{color:var(--muted);font-size:.88rem}
.themes{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.theme{background:var(--card);border:1px solid var(--card-bd);border-radius:var(--radius);padding:1.5rem}
.theme h4{font-size:1rem;margin-bottom:.5rem;color:var(--heading)}
.theme p{color:var(--muted);font-size:.88rem}

/* ============ speaking / press ============ */
.talks{list-style:none;display:grid;gap:.8rem;margin-bottom:3rem}
.talks li{display:grid;grid-template-columns:5rem 1fr;gap:1.2rem;background:var(--card);border:1px solid var(--card-bd);border-radius:12px;padding:1rem 1.3rem;align-items:baseline}
.talks .yr{font-family:var(--font-head);font-weight:800;color:var(--link)}
.talks .ev{font-weight:600;color:var(--heading)}
.talks .tt{color:var(--muted);font-size:.9rem}
.press-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;align-items:center}
.press-list{list-style:none;display:grid;gap:.6rem;margin-top:1rem}
.press-list li{background:var(--card);border:1px solid var(--card-bd);border-radius:10px;padding:.7rem 1rem;font-size:.92rem;color:var(--ink)}
.press-list strong{color:var(--heading)}
.press-collage{display:grid;grid-template-columns:2fr 1fr;grid-template-rows:1fr 1fr;gap:.75rem;aspect-ratio:15/14;margin:0}
.pc-item{position:relative;margin:0;overflow:hidden;border-radius:14px;border:1px solid var(--card-bd);background:var(--card);cursor:zoom-in;box-shadow:0 12px 30px rgba(5,8,15,.16)}
.pc-item.pc-big{grid-row:1/3}
.pc-item img{width:100%;height:100%;object-fit:cover;object-position:center 20%;display:block}
.pc-item figcaption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:1.8rem .8rem .7rem;background:linear-gradient(transparent,rgba(5,8,15,.88));color:#E7EEF8;font-size:.78rem;opacity:0;transition:opacity .3s}
.pc-item:hover figcaption,.pc-item:focus-within figcaption{opacity:1}
@media(hover:none){.pc-item figcaption{opacity:1}}

/* ============ gallery ============ */
.gal-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
.gal-grid figure{position:relative;cursor:zoom-in}
.gal-grid figure figcaption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:2rem .9rem .75rem;background:linear-gradient(transparent,rgba(5,8,15,.88));color:#E7EEF8;font-size:.8rem}
.gal-grid figure:hover img{transform:scale(1.05)}

/* ============ contact / footer ============ */
.contact-btns{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2rem}
.btn{display:inline-flex;align-items:center;gap:.6rem;font-weight:700;font-size:.95rem;padding:.85rem 1.7rem;border-radius:999px;transition:.2s}
.btn.primary{background:var(--cyan);color:#0A1222}
.btn.primary:hover{background:#5DD6FB;text-decoration:none;transform:translateY(-2px)}
.btn.ghost{border:1px solid rgba(255,255,255,.35);color:#fff}
.btn.ghost:hover{border-color:var(--cyan);color:var(--cyan);text-decoration:none}
.site-footer{background:#05080F;color:#8FA3C0;padding:2.2rem 1.25rem;font-size:.85rem}
.footer-inner{max-width:var(--maxw);margin:auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.footer-inner a{color:#C7D3E4}
.footer-right{display:flex;flex-direction:column;align-items:flex-end;gap:.35rem;text-align:right}
.footer-credit{font-size:.8rem;opacity:.75}
.footer-credit:hover{color:var(--cyan);opacity:1;text-decoration:none}

/* ============ lightbox ============ */
.lightbox{position:fixed;inset:0;background:rgba(7,13,27,.94);z-index:300;display:none;align-items:center;justify-content:center;flex-direction:column;padding:2rem}
.lightbox.open{display:flex}
.lightbox img{max-width:min(92vw,1200px);max-height:78vh;border-radius:12px;box-shadow:0 30px 90px rgba(0,0,0,.6);cursor:default;width:auto;height:auto}
.lightbox figcaption{color:#C7D3E4;margin-top:1rem;font-size:.95rem;max-width:60rem;text-align:center;background:none;border:none;padding:0}
.lb-btn{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);color:#fff;font-size:1.6rem;width:3rem;height:3rem;border-radius:50%;cursor:pointer;line-height:1}
.lb-btn:hover{background:rgba(48,200,247,.3)}
.lb-prev{left:1.2rem}.lb-next{right:1.2rem}
.lb-close{position:absolute;top:1.2rem;right:1.4rem;background:none;border:none;color:#fff;font-size:2.2rem;cursor:pointer;line-height:1}

/* scroll-velocity skew */
.tile,.pc-item,.hero-media{transform:skewY(var(--skew,0deg))}
.tile.reveal:not(.visible),.hero-media.reveal:not(.visible){transform:translateY(26px) skewY(var(--skew,0deg))}
.reveal.visible.tile,.reveal.visible.hero-media{transform:skewY(var(--skew,0deg))}

/* ============ reveal ============ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{transition:none!important;animation:none!important}
}

/* ============ responsive ============ */
@media(max-width:960px){
  .hero-inner{grid-template-columns:1fr}
  .press-grid{grid-template-columns:1fr}
  .tech-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .award-grid,.themes,.gal-grid{grid-template-columns:repeat(2,1fr)}
  .fig-row.c3{grid-template-columns:repeat(2,1fr)}
  .nav-toggle{display:block;order:3}
  .header-lang{display:inline-flex;margin-left:auto;margin-right:.2rem;order:1}
  .theme-toggle{display:flex;order:2}
  .wordmark{order:0}
  .main-nav .lang-switch{display:none}
  .main-nav .theme-toggle{display:none}
  .main-nav{position:fixed;top:60px;right:0;left:0;background:#0A1222;flex-direction:column;align-items:flex-start;padding:1.2rem 1.5rem 1.6rem;gap:1rem;border-bottom:1px solid rgba(255,255,255,.12);display:none;order:4}
  .main-nav.open{display:flex}
}
@media(min-width:961px){
  .theme-toggle{display:flex}
}
@media(max-width:400px){
  .header-inner{gap:.5rem;padding:.75rem .9rem}
  .logo-img{height:20px}
  .header-lang a,.header-lang span{padding:.28rem .55rem;font-size:.75rem}
  .theme-toggle{width:32px;height:32px}
  .nav-toggle{padding:.35rem .5rem}
}
@media(max-width:560px){
  .footer-inner,.footer-right{align-items:flex-start;text-align:left}
  .press-collage{aspect-ratio:14/15}
  .section{padding:3.8rem 1rem}
  .hero{padding:5rem 1rem 4rem}
  .hl-grid{grid-template-columns:1fr}
  .award-grid,.themes,.gal-grid,.fig-row.c2,.fig-row.c3,.steps{grid-template-columns:1fr}
  .talks li{grid-template-columns:1fr;gap:.2rem}
  .logo-img{height:22px}
  .vision{padding:1.8rem 1.4rem}
  .pat-table thead{display:none}
  .pat-table,.pat-table tbody,.pat-table tr,.pat-table td{display:block;width:100%}
  .pat-table tr{border-top:1px solid var(--line);padding:.8rem 0}
  .pat-table td{border-top:none;padding:.3rem 1.1rem}
  .pat-table td::before{content:attr(data-th);display:block;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:700}
}