/* TapeLine website.
   Brand rules: Brand Strategy §3.1 (type + color LOCKED), Identity Usage.
   Words in Source Sans, numbers someone would cut to in JetBrains Mono.
   Numbers on the site are brand yellow; the app's readout amber appears only
   inside screenshots of the app (MKT-D2 as amended, Brand Strategy v9).
   Fonts are vendored in fonts/; nothing loads from a third party. */

@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:400 800;font-display:swap;
  src:url("fonts/JetBrainsMono-latin.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:400 800;font-display:swap;
  src:url("fonts/JetBrainsMono-latin-ext.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1E00-1E9F,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

:root{
  --charcoal:#191B1F;   /* case charcoal: the brand's dark field */
  --panel:#22252B;      /* one step up from charcoal, for cards */
  --line:#2E323A;
  --ink:#ECE9E2;        /* text on charcoal, 14.2:1 */
  --dim:#7E8794;        /* secondary text on charcoal, 4.7:1 */
  --yellow:#F1C232;     /* logo, and one highlight per layout */
  --orange:#E0913E;     /* call to action, matching the app's primary action */
  --sans:"Source Sans 3","Source Sans Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --max:1080px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--charcoal);color:var(--ink);font:400 18px/1.55 var(--sans)}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}


/* header */
.site-header{border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:20px;min-height:68px}
.logo img{height:26px;width:auto}
.nav{margin-left:auto;display:flex;align-items:center;gap:22px}
.nav a{text-decoration:none;color:var(--dim);font-weight:600;font-size:16px}
.nav a:hover{color:var(--ink)}
.btn{display:inline-block;background:var(--orange);color:#191B1F;text-decoration:none;font:600 17px/1 var(--sans);padding:14px 20px;border-radius:10px}
.btn:hover{filter:brightness(1.06)}
.btn.small{font-size:15px;padding:10px 14px;border-radius:8px}
.nav .btn{color:#191B1F}

/* hero */
.hero{padding:56px 0 40px}
.hero .wrap{display:grid;gap:40px;align-items:center}
h1{font:600 clamp(34px,6vw,54px)/1.08 var(--sans);letter-spacing:-.01em;margin:0 0 16px}
.lede{font-size:clamp(19px,2.4vw,23px);color:var(--ink);margin:0 0 14px;font-weight:600}
.hero p.body{color:var(--dim);margin:0 0 26px;max-width:34em}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px 18px}
.cta-note{color:var(--dim);font-size:15px}

/* screenshots: each <figure data-slot> is one swappable image (assets/screens/README.md) */
.phone{position:relative;justify-self:center;width:min(320px,82vw);margin:0;background:#000;border:1px solid var(--line);border-radius:40px;padding:9px;box-shadow:0 30px 60px rgba(0,0,0,.45)}
.phone img{width:100%;height:auto;border-radius:32px}
.shot{position:relative;margin:0 0 14px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--charcoal);aspect-ratio:1/1}
.shot img{width:100%;height:100%;object-fit:cover}
.shot[data-slot="screen-02-capture-photo-dims"]{aspect-ratio:4/3}
.shot[data-slot="screen-02-capture-photo-dims"] img{object-position:50% 66%}
.shot[data-slot="screen-03-solver-cut"] img{object-position:50% 77%}
.shot.empty{display:flex;align-items:center;justify-content:center;border-style:dashed;padding:18px}
.shot .placeholder{color:var(--dim);font-size:15px;text-align:center}
/* slot tags show only at ?slots, so the file to swap is named on the page */
.slot-tag{display:none}
html.slots .slot-tag{display:block;position:absolute;left:8px;top:8px;background:var(--yellow);color:#000;font:600 11px/1 var(--mono);padding:4px 6px;border-radius:4px}

/* sections */
section.band{padding:56px 0;border-top:1px solid var(--line)}
.band .kicker,.kicker{font:600 14px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--yellow);margin:0 0 12px}
h2{font:600 clamp(26px,4vw,36px)/1.15 var(--sans);margin:0 0 14px}
.band p{color:var(--dim);max-width:36em;margin:0 0 12px}
.grid3{display:grid;gap:18px;margin-top:28px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px}
.card h3{font:600 21px/1.25 var(--sans);margin:0 0 8px;color:var(--ink)}
.card p{margin:0 0 14px;font-size:17px}
.readout{font:500 26px/1.1 var(--mono);white-space:nowrap;color:var(--yellow);background:var(--charcoal);border:1px solid var(--line);border-radius:10px;padding:12px 14px;display:inline-block}
.readout small{display:block;font:400 13px/1.3 var(--sans);color:var(--dim);margin-bottom:4px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.niv{display:grid;grid-template-columns:auto 1fr;grid-template-areas:'n n' 'i v';gap:8px;align-items:stretch}
.niv .slot:nth-child(1){grid-area:n}.niv .img{grid-area:i}.niv .val{grid-area:v}
.niv .slot{background:var(--charcoal);border:1px solid var(--line);border-radius:10px;padding:8px 10px;min-width:0}
.niv .slot small{display:block;font:600 11px/1.2 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--yellow);margin-bottom:4px}
.niv .slot span{font-size:15px;color:var(--ink);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.niv .val span{font:500 17px/1.2 var(--mono);color:var(--yellow)}
.niv .thumb{width:34px;height:24px;border-radius:4px;background:#2b2e34 url(assets/screens/screen-02-capture-photo-dims.jpg) 50% 62%/cover}
.tags span{font-size:14px;color:var(--ink);border:1px solid var(--line);border-radius:999px;padding:5px 11px}

.closing{padding:64px 0;text-align:center;border-top:1px solid var(--line)}
.closing h2{margin-bottom:22px}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:28px 0 40px;color:var(--dim);font-size:15px}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center}
.site-footer a{color:var(--dim);text-decoration:none}
.site-footer a:hover{color:var(--ink)}
.site-footer .copy{margin-right:auto}

@media (min-width:860px){
  .hero{padding:80px 0 64px}
  .hero .wrap{grid-template-columns:1.15fr .85fr}
  .grid3{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:560px){
  .nav a:not(.btn){display:none}
  .logo img{height:22px}
}

/* inner pages: about, support */
.page{padding:56px 0 64px}
.page .wrap{max-width:720px}
.page h1{font-size:clamp(32px,5vw,44px)}
.page h2{font-size:clamp(22px,3vw,26px);margin-top:36px}
.page p,.page li{color:var(--dim)}
.page p strong,.page li strong{color:var(--ink);font-weight:600}
.page a{color:var(--ink)}
.facts{display:grid;grid-template-columns:auto 1fr;gap:8px 20px;margin:20px 0 0;padding:18px 20px;background:var(--panel);border:1px solid var(--line);border-radius:14px}
.facts dt{color:var(--dim)}
.facts dd{margin:0;color:var(--ink)}