/* Cyber Revolution Games — site styles.
 * One idea runs through the page: the logo is a single line, and the three
 * logo colours (C yellow, R blue, G red) mark the three projects. */

@font-face { font-family: "Chakra Petch"; src: url("../fonts/chakra-petch-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Chakra Petch"; src: url("../fonts/chakra-petch-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("../fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("../fonts/ibm-plex-sans-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("../fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }

:root {
  color-scheme: dark;
  /* Base */
  --void: #06080c;
  --panel: #0c1016;
  --rule: #1d242d;
  --rule-strong: #2d3640;
  --text: #e9edf2;
  --dim: #929ca8;
  /* Logo colours, tuned for a dark background */
  --c: #ffd814;
  --r: #00c8ff;
  --g: #fa1675;
  --c-soft: #ffe566;
  --r-soft: #8fe6ff;
  --g-soft: #ff8cbc;

  --display: "Chakra Petch", "Avenir Next Condensed", "Arial Narrow", sans-serif;
  --body: "IBM Plex Sans", -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --wrap: 1240px;
  --gutter: clamp(16px, 4vw, 40px);
  /* A 60-degree cut, the angle of the logo's chamfered corners */
  --cut: 14px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--void);
  color: var(--text);
  font: 400 17px/1.6 var(--body);
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--c); outline-offset: 4px; }
::selection { background: var(--r); color: var(--void); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--text); color: var(--void); padding: 8px 14px; z-index: 10; }
.skip:focus { left: 8px; }

/* ---------- Header ---------- */
.site-header { border-bottom: 1px solid var(--rule); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 76px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand svg { width: 34px; height: 30px; flex: none; }
.brand-name { font: 600 15px/1.15 var(--display); letter-spacing: .02em; }
.brand-name span { display: block; font-weight: 500; color: var(--dim); letter-spacing: .04em; }
.site-nav { display: flex; gap: clamp(16px, 3vw, 32px); font-size: 15px; }
.site-nav a { text-decoration: none; color: var(--dim); padding: 6px 0; }
.site-nav a:hover { color: var(--text); }

/* ---------- Hero ---------- */
.hero { padding: clamp(40px, 7vw, 96px) 0 clamp(56px, 8vw, 112px); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(24px, 4vw, 64px); align-items: center; }
.hero h1 {
  font: 600 clamp(52px, 8.4vw, 116px)/.9 var(--display);
  letter-spacing: -.015em;
  margin: 0 0 28px;
  text-wrap: balance;
}
.lede { font-size: clamp(18px, 1.6vw, 21px); line-height: 1.55; color: #c3cad3; max-width: 34em; margin: 0 0 36px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-mark { margin: 0; }
.mark-box { position: relative; aspect-ratio: 905 / 790; width: 100%; max-width: 620px; margin-inline: auto; }
.mark-box svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.mark-box canvas {
  position: absolute; inset: -14%; width: 128%; height: 128%; pointer-events: none;
  /* The canvas runs 14% past the logo on every side, so zoomed scenes are not cut by a hard edge.
     That margin fades out; the logo itself, inside it, is never touched by the fade. */
  -webkit-mask-image: linear-gradient(to right, transparent, #000 10.9%, #000 89.1%, transparent), linear-gradient(to bottom, transparent, #000 10.9%, #000 89.1%, transparent);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(to right, transparent, #000 10.9%, #000 89.1%, transparent), linear-gradient(to bottom, transparent, #000 10.9%, #000 89.1%, transparent);
  mask-composite: intersect;
}
.mark-fill .c, .mark .c { fill: var(--c); }
.mark-fill .r, .mark .r { fill: var(--r); }
.mark-fill .g, .mark .g { fill: var(--g); }
.mark-edge { fill: none; stroke: #f2f5ff; stroke-width: 1.6px; vector-effect: non-scaling-stroke; stroke-linejoin: miter; opacity: 0; }
.hero-mark figcaption { margin-top: 18px; text-align: center; font: 400 13px/1.4 var(--mono); color: var(--dim); }

/* ---------- Buttons: one corner cut at the logo's angle ---------- */
.btn {
  --btn-bg: var(--void); --btn-fg: var(--text); --btn-line: var(--rule-strong);
  --shape: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut) * .58) 100%, 0 100%);
  position: relative; isolation: isolate; display: inline-flex; align-items: center; gap: 10px;
  min-height: 48px; padding: 12px 24px 12px 20px;
  font: 600 16px/1 var(--display); letter-spacing: .02em; text-decoration: none;
  color: var(--btn-fg);
  background: var(--btn-line); /* the outline: the inner layer below leaves 1px of it visible */
  clip-path: var(--shape);
}
.btn::before {
  content: ""; position: absolute; inset: 1px; z-index: -1;
  background: var(--btn-bg); clip-path: var(--shape);
  transition: background-color .15s;
}
.btn:hover { --btn-bg: #141a22; --btn-line: #46525e; }
.btn-primary { --btn-bg: var(--text); --btn-fg: var(--void); --btn-line: var(--text); }
.btn-primary:hover { --btn-bg: #fff; --btn-line: #fff; }

/* ---------- Sections ---------- */
.section { padding: clamp(56px, 8vw, 104px) 0; border-top: 1px solid var(--rule); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: clamp(28px, 4vw, 48px); }
.section-head h2 { font: 600 clamp(32px, 4vw, 48px)/1 var(--display); letter-spacing: -.01em; margin: 0; }
.section-head p { margin: 0; color: var(--dim); max-width: 30em; }

/* ---------- Projects ---------- */
.projects { display: grid; gap: clamp(48px, 7vw, 88px); }
.project {
  --accent: var(--text); --accent-soft: var(--text);
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 2px solid var(--accent);
  align-items: start;
}
.project[data-letter="c"] { --accent: var(--c); --accent-soft: var(--c-soft); }
.project[data-letter="r"] { --accent: var(--r); --accent-soft: var(--r-soft); }
.project[data-letter="g"] { --accent: var(--g); --accent-soft: var(--g-soft); }
.project.flip .project-media { order: 2; }

.project-media { margin: 0; }
.frame {
  position: relative; background: var(--panel); overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 15px) 100%, 0 100%);
}
.frame img { width: 100%; height: 100%; object-fit: cover; }
.frame-wide { aspect-ratio: 16 / 10; }
.phones { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; max-width: 520px; }
.phones .frame { aspect-ratio: 9 / 16; }
.phones .frame:nth-child(2) { margin-top: 48px; }

.project-kind { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; padding: 0; list-style: none; }
.project-kind li { font: 500 12.5px/1 var(--mono); color: var(--dim); padding: 6px 9px; border: 1px solid var(--rule-strong); }
.project-kind li.is-legacy { color: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 55%, transparent); }
.project h3 { font: 600 clamp(36px, 4.6vw, 60px)/.95 var(--display); letter-spacing: -.01em; margin: 0 0 8px; }
.project .subtitle { font: 500 clamp(17px, 1.6vw, 20px)/1.3 var(--display); color: var(--accent-soft); margin: 0 0 20px; letter-spacing: .01em; }
.project p { margin: 0 0 16px; max-width: 34em; color: #c3cad3; }
.project .note { border-left: 2px solid var(--accent); padding: 2px 0 2px 16px; color: var(--text); }
.project .actions { margin-top: 26px; }
.text-links { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 18px; font-size: 15px; }
.text-links a { color: var(--dim); text-decoration-color: var(--rule-strong); text-underline-offset: 4px; }
.text-links a:hover { color: var(--text); text-decoration-color: var(--accent); }

/* ---------- Contact ---------- */
.contact-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.contact-list a {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: baseline; gap: 4px 24px;
  padding: 22px 0; border-bottom: 1px solid var(--rule); text-decoration: none;
}
.contact-list strong { font: 600 clamp(24px, 3vw, 34px)/1.1 var(--display); letter-spacing: -.005em; }
.contact-list span { font: 400 14px/1.4 var(--mono); color: var(--dim); }
.contact-list em { grid-column: 1 / -1; font-style: normal; color: var(--dim); font-size: 15px; }
.contact-list a:hover strong { text-decoration: underline; text-decoration-color: var(--c); text-decoration-thickness: 2px; text-underline-offset: 6px; }
.contact-list a:hover span { color: var(--text); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--rule); padding: 28px 0 40px; color: var(--dim); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; }
.site-footer a { color: var(--dim); text-underline-offset: 4px; }
.site-footer a:hover { color: var(--text); }
.tricolor { display: inline-flex; gap: 3px; vertical-align: middle; margin-right: 10px; }
.tricolor i { width: 14px; height: 2px; display: block; }
.tricolor i:nth-child(1) { background: var(--c); }
.tricolor i:nth-child(2) { background: var(--r); }
.tricolor i:nth-child(3) { background: var(--g); }

/* ---------- Long-form text (privacy policy, 404) ---------- */
.doc { padding: clamp(40px, 6vw, 80px) 0 clamp(64px, 8vw, 104px); }
.doc .wrap { max-width: calc(46rem + 2 * var(--gutter)); }
.doc h1 { font: 600 clamp(40px, 6vw, 68px)/.95 var(--display); letter-spacing: -.01em; margin: 0 0 12px; }
.doc .updated { font: 400 14px/1.4 var(--mono); color: var(--dim); margin: 0 0 48px; }
.doc h2 { font: 600 clamp(22px, 2.4vw, 27px)/1.2 var(--display); margin: 48px 0 14px; letter-spacing: .005em; }
.doc p, .doc li { color: #c9d0d8; }
.doc p { margin: 0 0 16px; }
.doc a { color: var(--text); text-decoration-color: var(--c); text-underline-offset: 3px; }
.doc a.btn { color: var(--btn-fg); }
.doc ul { padding-left: 1.2em; margin: 0 0 16px; }

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-mark { order: -1; }
  .mark-box { max-width: min(78vw, 440px); }
  .project, .project.flip { grid-template-columns: 1fr; }
  .project.flip .project-media { order: 0; }
  .section-head { flex-direction: column; gap: 10px; }
}
@media (max-width: 520px) {
  body { font-size: 16px; }
  .site-nav { gap: 16px; font-size: 14px; }
  .brand-name { font-size: 13px; }
  .phones { gap: 10px; }
  .phones .frame:nth-child(2) { margin-top: 28px; }
  .contact-list a { grid-template-columns: 1fr; }
}