/* Tsukamu home: a deliberate single light look.
   Layout: full-bleed sections; the robot footage is shown as a HUD camera feed; type is huge, condensed and uppercase; very little copy. */
:root{
  --void:#f3f4f1;       /* page: cool paper */
  --deck:#ffffff;       /* panels */
  --line:#d9dcdf;
  --text:#12161b;
  --dim:#5d6570;
  --signal:#f2510f;     /* signal orange: the one loud colour */
  --signal-soft:rgba(242,81,15,.14);

  --f-display:"Archivo","Arial Narrow",Impact,sans-serif;
  --f-body:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --f-hud:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --gutter:clamp(16px,4vw,48px);
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--void);color:var(--text);font:400 1rem/1.6 var(--f-body)}
a{color:inherit}
img,video{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
.wrap{max-width:1280px;margin-inline:auto;padding-inline:var(--gutter)}
.hud{font:500 .6875rem/1.3 var(--f-hud);letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.hud b{color:var(--text);font-weight:500}
.hud .on{color:var(--signal)}
.big{font-family:var(--f-display);font-stretch:72%;font-weight:700;text-transform:uppercase;line-height:.9;letter-spacing:-.005em;margin:0;text-wrap:balance}

/* Wordmark: a grip glyph (bracket closing on a dot) + TSUKAMU */
.mark{font-family:var(--f-display);font-stretch:125%;font-weight:800;letter-spacing:.1em;font-size:1rem;text-decoration:none;display:inline-flex;align-items:center;gap:.55em;color:var(--text)}
.mark .g{position:relative;display:inline-block;width:1.05em;height:1.05em;border:.16em solid var(--signal);border-left-color:transparent;border-right-color:transparent}
.mark .g::after{content:"";position:absolute;inset:0;margin:auto;width:.34em;height:.34em;background:var(--signal);border-radius:50%}
.btn{display:inline-flex;align-items:center;gap:.75em;font:600 .8125rem/1 var(--f-hud);letter-spacing:.12em;text-transform:uppercase;padding:1.05em 1.4em;border:1px solid var(--signal);background:var(--signal);color:#fff;text-decoration:none;cursor:pointer;clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px))}
.btn:hover{background:#d9440a}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--text)}

/* Top bar */
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:rgba(243,244,241,.85);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:56px}
.bar nav{display:flex;gap:28px}
.bar nav a{text-decoration:none}
.bar nav a:hover{color:var(--text)}
.bar .btn{padding:.8em 1.1em;font-size:.6875rem}
@media (max-width:760px){.bar nav{display:none}}

/* Hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;background:
  linear-gradient(var(--line) 1px,transparent 1px) 0 0/64px 64px,
  linear-gradient(90deg,var(--line) 1px,transparent 1px) 0 0/64px 64px;opacity:.6;mask-image:radial-gradient(ellipse at 70% 40%,#000 20%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse at 70% 40%,#000 20%,transparent 75%);pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(24px,4vw,56px);align-items:center;padding-block:clamp(36px,6vw,88px)}
.hero-copy{display:grid;gap:26px;align-content:center}
.hero h1{font-size:clamp(3rem,7.5vw,6.5rem)}
.hero h1 em{font-style:normal;color:var(--signal)}
.hero .sub{font-size:1.125rem;color:var(--dim);max-width:30rem}
.hero .sub b{color:var(--text);font-weight:500}
.actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr}}

/* Camera feed: footage treated as a thermal-style HUD view */
.feed{position:relative;margin:0;background:#fff;border:1px solid var(--line);overflow:hidden;aspect-ratio:1/1;max-width:100%}
.feed video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.08)}
.feed::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(160deg,#ffffff 0%,#ffe9de 100%);mix-blend-mode:multiply;pointer-events:none}
.feed::after{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;background:
  repeating-linear-gradient(0deg,rgba(18,22,27,.05) 0 1px,transparent 1px 4px)}
.feed .hud{position:absolute;z-index:3;color:var(--dim)}
.feed .tl{top:14px;left:16px}.feed .tr{top:14px;right:16px;text-align:right}
.feed .bl{bottom:14px;left:16px}.feed .br{bottom:14px;right:16px;text-align:right}
.feed .tr .rec::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--signal);margin-right:6px;vertical-align:1px;animation:blink 1.2s steps(2) infinite}
.corners{position:absolute;inset:10px;z-index:3;pointer-events:none;background:
  linear-gradient(var(--signal),var(--signal)) top left/22px 2px,linear-gradient(var(--signal),var(--signal)) top left/2px 22px,
  linear-gradient(var(--signal),var(--signal)) top right/22px 2px,linear-gradient(var(--signal),var(--signal)) top right/2px 22px,
  linear-gradient(var(--signal),var(--signal)) bottom left/22px 2px,linear-gradient(var(--signal),var(--signal)) bottom left/2px 22px,
  linear-gradient(var(--signal),var(--signal)) bottom right/22px 2px,linear-gradient(var(--signal),var(--signal)) bottom right/2px 22px;background-repeat:no-repeat}
.reticle{position:absolute;z-index:3;left:50%;top:50%;width:96px;height:96px;margin:-48px 0 0 -48px;border:1px solid rgba(242,81,15,.45);border-radius:50%;pointer-events:none}
.reticle::before,.reticle::after{content:"";position:absolute;background:rgba(242,81,15,.45)}
.reticle::before{left:50%;top:-14px;bottom:-14px;width:1px}
.reticle::after{top:50%;left:-14px;right:-14px;height:1px}
.scan{position:absolute;z-index:3;left:0;right:0;height:30%;top:-30%;background:linear-gradient(transparent,rgba(242,81,15,.07),transparent);animation:scan 4.5s linear infinite;pointer-events:none}
@keyframes scan{to{top:100%}}
@keyframes blink{50%{opacity:0}}
@media (prefers-reduced-motion:reduce){.scan,.feed .tr .rec::before{animation:none}.scan{display:none}}

/* Spec strip under the hero */
.specs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-bottom:1px solid var(--line)}
.specs div{padding:18px var(--gutter) 18px 20px;border-right:1px solid var(--line);display:grid;gap:4px}
.specs div:last-child{border-right:0}
.specs b{font:600 1.25rem/1.1 var(--f-display);font-stretch:85%;text-transform:uppercase;letter-spacing:.01em}
@media (max-width:760px){.specs{grid-template-columns:1fr 1fr}.specs div:nth-child(2){border-right:0}.specs div:nth-child(-n+2){border-bottom:1px solid var(--line)}}

/* Ticker of tasks */
.ticker{overflow:hidden;border-bottom:1px solid var(--line);background:var(--deck)}
.ticker ul{display:flex;gap:0;list-style:none;margin:0;padding:0;width:max-content;animation:tick 40s linear infinite}
.ticker li{font:600 clamp(1.2rem,2.6vw,1.75rem)/1 var(--f-display);font-stretch:75%;text-transform:uppercase;padding:18px 0;white-space:nowrap;color:var(--dim)}
.ticker li::after{content:"/";color:var(--signal);margin:0 .6em}
.ticker li:nth-child(odd){color:var(--text)}
@keyframes tick{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.ticker ul{animation:none;flex-wrap:wrap;width:auto;padding-inline:var(--gutter)}}

section{padding-block:clamp(64px,10vw,128px);border-bottom:1px solid var(--line)}
.head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;margin-bottom:clamp(28px,4vw,48px)}
.head h2{font-size:clamp(2.2rem,5vw,4rem)}

/* Field footage */
.feeds{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(12px,1.6vw,20px)}
.feeds figure{margin:0;display:grid;gap:10px;min-width:0}
.feeds figcaption{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
@media (max-width:860px){.feeds{grid-template-columns:1fr 1fr}.feeds figure:first-child{grid-column:1/-1}}
@media (max-width:520px){.feeds{grid-template-columns:1fr}}

/* Stages: a real sequence */
.stages{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));counter-reset:s;border-top:2px solid var(--signal)}
.stages li{counter-increment:s;position:relative;padding:28px 22px 0 0;display:grid;gap:12px;align-content:start;min-width:0}
.stages li::before{content:"0" counter(s);position:absolute;top:-2px;left:0;transform:translateY(-100%);font:500 .6875rem/1 var(--f-hud);letter-spacing:.14em;color:var(--signal);padding-bottom:8px}
.stages li::after{content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;background:var(--signal);clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%)}
.stages h3{font:700 clamp(1.5rem,2.4vw,1.9rem)/.95 var(--f-display);font-stretch:75%;text-transform:uppercase;margin:0}
.stages p{margin:0;color:var(--dim);font-size:.9375rem}
.stages .gate{border-left:2px solid var(--signal);padding:4px 0 4px 12px;color:var(--text);font-size:.875rem}
@media (max-width:900px){.stages{grid-template-columns:1fr 1fr;row-gap:44px}}
@media (max-width:520px){.stages{grid-template-columns:1fr}}

/* Contact */
.contact .wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(28px,5vw,72px);align-items:start}
.contact h2{font-size:clamp(2.4rem,5.5vw,4.5rem)}
.contact h2 em{font-style:normal;color:var(--signal)}
.contact address{font-style:normal;margin-top:28px;display:grid;gap:2px}
form{display:grid;grid-template-columns:1fr 1fr;gap:14px;background:var(--deck);border:1px solid var(--line);padding:clamp(18px,3vw,28px)}
form .full{grid-column:1/-1}
label{display:grid;gap:6px;min-width:0}
input,textarea{font:400 1rem/1.4 var(--f-body);color:var(--text);background:var(--void);border:1px solid var(--line);padding:.75em .85em;width:100%;border-radius:0}
input:focus,textarea:focus{outline:none;border-color:var(--signal);box-shadow:0 0 0 3px var(--signal-soft)}
textarea{min-height:130px;resize:vertical}
textarea::placeholder{color:var(--dim);opacity:.7}
.status{grid-column:1/-1;min-height:1.3em;font-size:.875rem;color:var(--dim);margin:0}
@media (max-width:900px){.contact .wrap{grid-template-columns:1fr}}
@media (max-width:480px){form{grid-template-columns:1fr}}

footer{padding-block:24px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer .team{text-decoration:none;border:1px solid var(--line);padding:.55em .9em}
footer .team:hover,footer .team:focus-visible{color:var(--signal);border-color:var(--signal)}