/* CrossXCloud — traditional vs canvas comparison page.
   Self-contained: no build step, no external requests, no JS. */

:root {
  color-scheme: dark light;

  --bg:        #0b0e14;
  --bg-raise:  #121722;
  --bg-sink:   #080a10;
  --line:      #232a38;
  --text:      #e6e9f0;
  --text-dim:  #97a0b5;
  --text-faint:#5d6982;

  --old:       #f2a15c;   /* traditional column accent */
  --new:       #5ad1c4;   /* crossxcloud column accent */
  --add:       #5ad17a;
  --del:       #e8657a;

  --radius: 14px;
  --pad: clamp(1.1rem, 3vw, 2rem);
  --measure: 68ch;

  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg:        #f7f8fb;
    --bg-raise:  #ffffff;
    --bg-sink:   #eef0f6;
    --line:      #dfe3ec;
    --text:      #11151f;
    --text-dim:  #55607a;
    --text-faint:#8b95ac;

    --old:       #b5641a;
    --new:       #0f8578;
    --add:       #1c8a41;
    --del:       #c0324a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: clamp(0.98rem, 0.94rem + 0.2vw, 1.06rem);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { line-height: 1.15; margin: 0; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

/* ── Hero ──────────────────────────────────────────────────────────── */

.hero {
  max-width: 1180px;
  margin-inline: auto;
  padding: clamp(3rem, 10vw, 7rem) var(--pad) clamp(2rem, 6vw, 4rem);
  text-align: center;
}

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--new);
  margin-bottom: 1.4rem;
}

.hero h1 {
  font-size: clamp(2.6rem, 9vw, 5.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.task {
  max-width: 40ch;
  margin: clamp(1.8rem, 5vw, 2.6rem) auto 0;
  padding: 1.2rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-raise);
  color: var(--text-dim);
  text-align: left;
}
.task b { color: var(--text); font-weight: 600; }

.task-label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

.scroll-hint {
  margin-top: clamp(2rem, 6vw, 3.5rem);
  color: var(--text-faint);
  font-size: 1.4rem;
}

/* ── Comparison columns ────────────────────────────────────────────── */

.compare {
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: var(--pad);
}

.columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1rem, 2.5vw, 1.75rem);
  align-items: start;
}

/* Stack rather than shrink: two columns of code below this width is unreadable. */
@media (max-width: 820px) {
  .columns { grid-template-columns: 1fr; }
}

.col {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-raise);
  overflow: hidden;
}

.col--old { --accent: var(--old); }
.col--new { --accent: var(--new); }

.col-head {
  padding: var(--pad);
  border-bottom: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  background: linear-gradient(to bottom, color-mix(in srgb, var(--accent) 7%, transparent), transparent);
}
.col-head h3 { font-size: 1.3rem; letter-spacing: -0.01em; }
.col-head p { color: var(--text-dim); font-size: 0.94rem; margin-top: 0.35rem; }

/* Steps */

.steps {
  list-style: none;
  counter-reset: step;
  margin: 0;
  padding: 0;
}

.steps > li {
  counter-increment: step;
  position: relative;
  padding: 1.4rem var(--pad) 1.4rem calc(var(--pad) + 2.6rem);
  border-bottom: 1px solid var(--line);
}
.steps > li:last-child { border-bottom: 0; }

.steps > li::before {
  content: counter(step);
  position: absolute;
  left: var(--pad);
  top: 1.45rem;
  width: 1.7rem;
  height: 1.7rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line));
  color: var(--accent);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.steps h4 { font-size: 1rem; font-weight: 650; }
.steps p  { color: var(--text-dim); font-size: 0.93rem; margin-top: 0.4rem; }

/* Code blocks */

pre {
  margin: 0.9rem 0 0;
  padding: 0.85rem 1rem;
  background: var(--bg-sink);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow-x: auto;          /* code scrolls inside itself, the page never does */
  font-size: 0.8rem;
  line-height: 1.55;
}
code { font-family: var(--mono); color: var(--text-dim); white-space: pre; }

.add { color: var(--add); font-weight: 700; }
.del { color: var(--del); font-weight: 700; }

/* Mini canvas illustration */

.canvas {
  margin-top: 1rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  background:
    radial-gradient(circle at 1px 1px, var(--line) 1px, transparent 0) 0 0 / 16px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.node {
  width: 100%;
  max-width: 22rem;
  padding: 0.6rem 0.85rem;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--bg-raise);
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--text-dim);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--text) 6%, transparent);
}

.node-tag {
  display: block;
  font-family: var(--sans);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.node--hetzner { border-color: color-mix(in srgb, #d13a3a 40%, var(--line)); }
.node--hetzner .node-tag { color: #e0685f; }
.node--gcp     { border-color: color-mix(in srgb, #4285f4 40%, var(--line)); }
.node--gcp     .node-tag { color: #6fa2f7; }
.node--net     { border-color: color-mix(in srgb, var(--new) 40%, var(--line)); }
.node--net     .node-tag { color: var(--new); }

.wire {
  width: 2px;
  height: 1.4rem;
  background: linear-gradient(to bottom, transparent, var(--new), transparent);
}

/* Column footer tally */

.col-foot {
  padding: var(--pad);
  border-top: 1px solid var(--line);
  background: var(--bg-sink);
}

.tally { margin: 0; display: grid; gap: 0.7rem; }
.tally > div { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; }
.tally dt { color: var(--text-faint); font-size: 0.82rem; }
.tally dd {
  margin: 0;
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 600;
  text-align: right;
}

/* ── Closing ───────────────────────────────────────────────────────── */

.closing {
  max-width: var(--measure);
  margin: clamp(3.5rem, 10vw, 6rem) auto 0;
  padding-inline: var(--pad);
  text-align: center;
}

.closing h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  letter-spacing: -0.02em;
}

.closing > p {
  margin-top: 1.1rem;
  color: var(--text-dim);
}
.closing em { color: var(--text); font-style: normal; font-weight: 650; }

.facts {
  list-style: none;
  margin: clamp(2rem, 5vw, 3rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
  text-align: left;
}
.facts li {
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--bg-raise);
  color: var(--text-dim);
  font-size: 0.93rem;
}
.facts b { color: var(--text); }

.cta { margin-top: clamp(2rem, 5vw, 3rem); }

.button {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  background: var(--new);
  color: #05201d;
  font-weight: 650;
  text-decoration: none;
  transition: transform 120ms ease, filter 120ms ease;
}
.button:hover { filter: brightness(1.08); transform: translateY(-1px); }
.button:focus-visible { outline: 2px solid var(--text); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* ── Page footer ───────────────────────────────────────────────────── */

.page-foot {
  margin-top: clamp(4rem, 10vw, 7rem);
  padding: 2rem var(--pad);
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--text-faint);
  font-size: 0.85rem;
}