/* blankscreen.io — the screen is the hero */
:root{
  --ink:#16181D; --ink-soft:#4B4F58; --paper:#FAFAF8; --card:#FFFFFF;
  --line:#E4E4DF; --accent:#2952E3;
  --bar-w:#C8C8C8; --bar-y:#C8C800; --bar-c:#00C8C8; --bar-g:#00C800;
  --bar-m:#C800C8; --bar-r:#C80000; --bar-b:#0000C8;
  --radius:14px; --maxw:1080px;
  --font-display:"Space Grotesk",system-ui,sans-serif;
  --font-body:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"SF Mono","Cascadia Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 var(--font-body)}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
kbd{font:600 .82em var(--font-mono);background:#EDEEE9;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:.1em .45em}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}

/* ---------- header ---------- */
.site-header{display:flex;align-items:center;gap:18px;max-width:var(--maxw);margin:0 auto;padding:14px 20px}
/* language switcher */
.lang-switch{position:relative;margin-left:auto}
.lang-toggle{display:inline-flex;align-items:center;gap:6px;font:600 13.5px var(--font-body);color:var(--ink-soft);background:var(--card);border:1px solid var(--line);border-radius:9px;padding:7px 10px;cursor:pointer;transition:.15s}
.lang-toggle:hover{color:var(--ink);border-color:#c9c9c4}
.lang-globe{opacity:.85}
.lang-caret{opacity:.6;transition:transform .15s}
.lang-switch:hover .lang-caret,.lang-switch:focus-within .lang-caret{transform:rotate(180deg)}
.lang-drop{position:absolute;top:calc(100% + 6px);right:0;min-width:170px;background:var(--card);border:1px solid var(--line);border-radius:11px;box-shadow:0 12px 30px -10px rgba(20,22,28,.28);padding:5px;opacity:0;visibility:hidden;transform:translateY(-4px);transition:.15s;z-index:40}
.lang-switch:hover .lang-drop,.lang-switch:focus-within .lang-drop{opacity:1;visibility:visible;transform:translateY(0)}
.lang-drop a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;color:var(--ink);font-size:14px;text-decoration:none}
.lang-drop a:hover{background:var(--bg)}
.lang-drop a.active{color:var(--accent)}
.lang-code{font:700 11px var(--font-body);letter-spacing:.04em;color:var(--ink-soft);width:22px}
.lang-drop a.active .lang-code{color:var(--accent)}
.lang-full{flex:1}
.lang-check{color:var(--accent);margin-left:auto}
@media(max-width:640px){.lang-switch{margin-left:0}.lang-drop{right:auto;left:0}}
.brand{font:700 21px/1 var(--font-display);color:var(--ink);letter-spacing:-.02em;display:flex;align-items:center;gap:10px}
.brand:hover{text-decoration:none}
.brand b{color:var(--accent)}
.brand-mark{width:26px;height:18px;border:2.5px solid var(--ink);border-radius:4px;display:inline-block;position:relative}
.brand-mark::after{content:"";position:absolute;left:50%;bottom:-7px;transform:translateX(-50%);width:12px;height:3px;background:var(--ink);border-radius:2px}
.site-nav{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
.nav-group{position:relative}
.nav-toggle{font:600 13px var(--font-body);color:var(--ink-soft);background:none;border:0;padding:7px 9px;border-radius:8px;cursor:pointer;white-space:nowrap}
.nav-toggle:hover,.nav-group:focus-within .nav-toggle{background:#EFEFEA;color:var(--ink)}
.nav-drop{display:none;position:absolute;right:0;top:100%;z-index:50;background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 32px rgba(20,22,28,.12);padding:8px;min-width:230px}
.nav-group:hover .nav-drop,.nav-group:focus-within .nav-drop{display:block}
.nav-drop a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;color:var(--ink);font-size:14.5px}
.nav-drop a:hover{background:#F2F2ED;text-decoration:none}
.nav-drop a[aria-current]{background:#EDF1FF;color:var(--accent);font-weight:600}
.dot{width:14px;height:14px;border-radius:4px;border:1px solid rgba(0,0,0,.14);flex:none}

/* signature: SMPTE brand strip */
.smpte-strip{display:flex;height:5px}
.smpte-strip i{flex:1}
.smpte-strip i:nth-child(1){background:var(--bar-w)}
.smpte-strip i:nth-child(2){background:var(--bar-y)}
.smpte-strip i:nth-child(3){background:var(--bar-c)}
.smpte-strip i:nth-child(4){background:var(--bar-g)}
.smpte-strip i:nth-child(5){background:var(--bar-m)}
.smpte-strip i:nth-child(6){background:var(--bar-r)}
.smpte-strip i:nth-child(7){background:var(--bar-b)}

/* ---------- stage ---------- */
.stage-wrap{max-width:var(--maxw);margin:26px auto 0;padding:0 20px}
.stage-title{font:700 clamp(30px,5vw,44px)/1.1 var(--font-display);letter-spacing:-.025em;margin:0 0 16px}
.stage{position:relative;height:min(62vh,560px);border-radius:var(--radius);border:1px solid var(--line);cursor:pointer;overflow:hidden;box-shadow:0 20px 50px -18px rgba(20,22,28,.28);transition:box-shadow .25s}
.stage:hover{box-shadow:0 26px 60px -18px rgba(20,22,28,.4)}
.stage::after{content:"";position:absolute;right:14px;bottom:12px;width:7px;height:7px;border-radius:50%;background:#37D26B;box-shadow:0 0 8px #37D26B;opacity:.85}
#fx{position:absolute;inset:0;width:100%;height:100%;display:none}
body[data-mode="dvd"] #fx,body[data-mode="nosignal"] #fx,body[data-mode="snow"] #fx,
body[data-mode="halloween"] #fx,body[data-mode="broken"] #fx,body[data-mode="update"] #fx,
body[data-mode="bsod"] #fx,body[data-mode="hacker"] #fx,body[data-mode="whitenoise"] #fx,
body[data-mode="rain"] #fx,body[data-mode="static"] #fx,body[data-mode="matrix"] #fx,body[data-mode="clock"] #fx,body[data-mode="timer"] #fx{display:block}
.stage-hint{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;pointer-events:none;opacity:.92;transition:opacity .3s}
.stage.quiet .stage-hint{opacity:0}
.stage-hint span{font:600 17px var(--font-display);padding:10px 22px;border-radius:999px;background:rgba(0,0,0,.62);color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.35);backdrop-filter:blur(4px)}
.stage-hint small{display:flex;align-items:center;gap:6px;font:12.5px var(--font-mono);padding:5px 14px;border-radius:999px;background:rgba(0,0,0,.55);color:#fff;backdrop-filter:blur(4px)}
.stage-hint kbd{background:#FAFAF8;color:#16181D;border-color:rgba(0,0,0,.25);border-bottom-color:rgba(0,0,0,.4)}

/* fullscreen state */
.stage:fullscreen{border-radius:0;border:0}
.stage:fullscreen::after{display:none}

/* ---------- toolbar ---------- */
.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:14px}
.btn{font:600 14.5px var(--font-body);border:1px solid var(--line);background:var(--card);color:var(--ink);padding:10px 16px;border-radius:10px;cursor:pointer;transition:.15s}
.btn:hover{border-color:var(--ink-soft)}
.btn-primary{background:var(--ink);border-color:var(--ink);color:#fff}
.btn-primary:hover{background:#000}
.swatches{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.swatch{width:30px;height:30px;border-radius:9px;border:1px solid rgba(0,0,0,.16);cursor:pointer;padding:0;transition:transform .12s}
.swatch:hover{transform:scale(1.14)}
.swatch-custom{display:flex;align-items:center;justify-content:center;font:700 16px var(--font-mono);background:conic-gradient(red,yellow,lime,cyan,blue,magenta,red);color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.5);position:relative}
.swatch-custom input{position:absolute;inset:0;opacity:0;cursor:pointer}
.dl-group{display:flex;gap:8px;align-items:center;margin-left:auto}
.dl-group select{font:14.5px var(--font-mono);padding:9px 10px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink)}
#mode-controls{display:contents}
.btn-pair{display:inline-flex;gap:8px}
/* primary media action: green Play -> red Pause */
.btn-play{background:#12A150;border-color:#12A150;color:#fff;font-weight:700}
.btn-play:hover{background:#0E8A44;border-color:#0E8A44;color:#fff}
.btn-play.playing{background:#E5484D;border-color:#E5484D;color:#fff}
.btn-play.playing:hover{background:#D13438;border-color:#D13438;color:#fff}
#mode-controls .btn.active{background:#EDF1FF;border-color:var(--accent);color:var(--accent)}
.deep-link{display:none;align-items:center;gap:6px;margin:14px 0 0;font:600 14.5px var(--font-body);color:var(--accent);width:fit-content}
.deep-link:hover{text-decoration:underline}
.deep-link b{font-weight:700}

/* ---------- content ---------- */
.content{max-width:780px;margin:0 auto;padding:40px 20px 8px}
.content p{color:#33363E;margin:0 0 16px}
.content h2{font:700 26px/1.25 var(--font-display);letter-spacing:-.02em;margin:38px 0 16px}
.content h3{font:700 17px var(--font-body);margin:26px 0 8px}
.uses{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.use{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px}
.use h3{margin:0 0 6px;font:700 15.5px var(--font-body)}
.use p{margin:0;font-size:14.5px;color:var(--ink-soft)}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{font:600 16px var(--font-body);padding:12px 0;cursor:pointer;list-style:none;position:relative;padding-right:30px}
.faq summary::after{content:"+";position:absolute;right:4px;top:10px;font:400 22px var(--font-mono);color:var(--ink-soft);transition:transform .18s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{margin:0 0 14px;color:#33363E}

/* ---------- related ---------- */
.related{max-width:var(--maxw);margin:36px auto 0;padding:0 20px}
.related h2{font:700 22px var(--font-display);letter-spacing:-.02em;margin:0 0 14px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.rel-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px;display:flex;flex-direction:column;gap:9px;color:var(--ink);transition:.15s}
.rel-card:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 10px 24px -12px rgba(20,22,28,.25)}
.rel-swatch{position:relative;height:58px;border-radius:8px;border:1px solid rgba(0,0,0,.09);overflow:hidden}
.rel-svg{position:absolute;inset:0;width:100%;height:100%;display:block}
.rel-name{font:600 13.5px var(--font-body)}

/* ---------- footer ---------- */
.site-footer{margin-top:56px;border-top:1px solid var(--line);background:#F2F2ED}
.foot-cols{max-width:var(--maxw);margin:0 auto;padding:34px 20px 8px;display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:24px}
.foot-cols h4{font:700 13px var(--font-body);text-transform:uppercase;letter-spacing:.07em;color:var(--ink-soft);margin:0 0 10px}
.foot-cols a{display:block;color:var(--ink);font-size:14px;padding:3.5px 0}
/* compact chips for the large Timers group (footer + nav) */
.foot-col-wide{grid-column:1 / -1}
.foot-chips{display:flex;flex-wrap:wrap;gap:7px}
.foot-chips a{padding:5px 10px;border:1px solid var(--line);border-radius:8px;font-size:13px;color:var(--ink-soft);background:var(--card);white-space:nowrap}
.foot-chips a:hover{color:var(--ink);border-color:#c9c9c4}
.nav-drop-chips{grid-template-columns:repeat(4,1fr);gap:5px;min-width:280px}
.nav-group:hover .nav-drop-chips,.nav-group:focus-within .nav-drop-chips{display:grid}
.nav-drop-chips a{text-align:center;padding:7px 4px;border-radius:8px;font-size:13px;color:var(--ink)}
.nav-drop-chips a:hover{background:var(--bg)}
.nav-drop-chips a[aria-current]{background:var(--bg);font-weight:600}
.foot-note{margin:0;font-size:13px;color:var(--ink-soft);text-align:center}
.foot-bottom{max-width:var(--maxw);margin:14px auto 0;padding:16px 20px 28px;border-top:1px solid var(--line);display:flex;flex-direction:column;align-items:center;gap:12px}
.foot-legal{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 20px}
.foot-legal a{color:var(--ink-soft);font-size:13px}
.foot-legal a:hover{color:var(--ink)}

@media (max-width:720px){
  .site-header{flex-wrap:wrap;gap:8px}
  .site-nav{margin-left:0;width:100%}
  .nav-drop{left:0;right:auto}
  .stage{height:52vh}
  .dl-group{margin-left:0}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* contact form */
.contact-form{max-width:520px;margin:22px 0 8px;display:flex;flex-direction:column;gap:14px}
.contact-form label{display:flex;flex-direction:column;gap:6px;font:600 14px var(--font-body);color:var(--ink)}
.contact-form input,.contact-form textarea{font:15px var(--font-body);padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);width:100%}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--accent);border-color:var(--accent)}
.contact-form textarea{resize:vertical}
.contact-form .btn-primary{align-self:flex-start}
.cf-note{font-size:13px;color:var(--ink-soft);margin:0}

/* tv static "tune" control */
.tune-wrap{display:inline-flex;align-items:center;gap:6px;font:600 13px var(--font-body);color:var(--ink);white-space:nowrap}