/* Heckle — useheckle.com
   Editorial "proof sheet" look: warm paper, black ink, one vermilion accent.
   No gradients, no rounded highlights, no emoji. Hairline rules and hard
   offset shadows, the way a print shop marks up a page. */

:root {
  --paper:   #f2eee2;
  --paper-2: #e9e2d1;
  --ink:     #17150f;
  --ink-2:   #3a3529;
  --muted:   #5e5849;
  --rule:    #cbc3af;
  --rule-hard: #17150f;
  --accent:  #c3371f;
  --accent-deep: #9c2c17;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", "Hoefler Text", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --edge: clamp(20px, 5vw, 64px);
  --maxw: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: var(--paper); }

a { color: var(--accent-deep); text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }

img { max-width: 100%; display: block; }

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: #e4dcc9;
  border: 1px solid var(--rule);
  padding: 1px 5px;
  color: var(--ink);
}

/* ---- layout scaffolding ---- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: var(--edge); padding-right: var(--edge); }

section { border-top: 1px solid var(--rule); }
section.alt { background: var(--paper-2); }
.block { padding-top: clamp(56px, 8vw, 104px); padding-bottom: clamp(56px, 8vw, 104px); }

.kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: 20px;
}

h2.head {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  max-width: 20ch;
  text-wrap: balance;
}
.head-note { margin-top: 18px; max-width: 56ch; font-size: clamp(17px, 1.7vw, 20px); color: var(--muted); }

/* ---- header ---- */
header.site {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.1) blur(6px);
  border-bottom: 1px solid var(--rule);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.wordmark {
  font-family: var(--serif);
  font-weight: 700; font-size: 22px; letter-spacing: -0.01em;
  color: var(--ink); text-decoration: none;
}
.wordmark .dot { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--ink-2); text-decoration: none; font-size: 15px; }
.nav-links a:hover { color: var(--accent); }
.nav-links a.mono { font-family: var(--mono); font-size: 13.5px; }
.navlink { font-family: var(--mono); font-size: 13.5px; color: var(--ink-2); text-decoration: none; }
.navlink:hover { color: var(--accent); }
@media (max-width: 620px) { .nav-links a.hide-sm { display: none; } }

/* ---- buttons ---- */
.btn {
  display: inline-block; font-family: var(--sans); font-size: 16px; font-weight: 600;
  padding: 12px 22px; text-decoration: none; border: 1.5px solid var(--rule-hard);
  transition: transform .08s ease, box-shadow .08s ease;
}
.btn-primary { background: var(--ink); color: var(--paper); box-shadow: 5px 5px 0 var(--accent); }
.btn-primary:hover { color: var(--paper); transform: translate(-1px,-1px); box-shadow: 7px 7px 0 var(--accent); }
.btn-primary:active { transform: translate(2px,2px); box-shadow: 2px 2px 0 var(--accent); }
.btn-ghost { background: transparent; color: var(--ink); box-shadow: 5px 5px 0 var(--rule); }
.btn-ghost:hover { color: var(--ink); transform: translate(-1px,-1px); box-shadow: 7px 7px 0 var(--rule); }
.btn-row { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 34px; }
.arrow::after { content: " \2197"; font-weight: 700; }

/* ---- hero ---- */
.hero { padding-top: clamp(52px, 8vw, 96px); padding-bottom: clamp(40px, 6vw, 72px); }
.hero .slug {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.04em; color: var(--muted);
  border-left: 3px solid var(--accent); padding-left: 12px; margin-bottom: 30px;
}
.hero h1 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(40px, 8vw, 88px); line-height: 1.02; letter-spacing: -0.025em;
  max-width: 15ch; text-wrap: balance;
}
.hero h1 .mark { color: var(--accent); }
.hero .lede { margin-top: 26px; max-width: 54ch; font-size: clamp(18px, 2.1vw, 23px); color: var(--ink-2); }
.hero .trust { margin-top: 22px; font-family: var(--mono); font-size: 13px; color: var(--muted); }

/* ---- demo frame ---- */
.demo { padding-bottom: clamp(56px, 8vw, 100px); }
.frame { border: 1.5px solid var(--rule-hard); background: #fff; box-shadow: 10px 10px 0 var(--ink); }
.frame-bar {
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--rule-hard); padding: 10px 14px; background: var(--paper-2);
  font-family: var(--mono); font-size: 12.5px; color: var(--muted);
}
.frame-bar .sq { width: 9px; height: 9px; background: var(--ink); display: inline-block; }
.frame-bar .sq.a { background: var(--accent); }
.frame-bar .url { margin-left: 4px; }
.frame-bar .tag { margin-left: auto; color: var(--accent-deep); }
.frame img, .frame video { width: 100%; display: block; }
.demo-video { background: #000; aspect-ratio: 1280 / 832; }
.caption { margin-top: 16px; font-family: var(--mono); font-size: 13px; color: var(--muted); max-width: 70ch; }

/* ---- problem ---- */
.problem p.big {
  font-family: var(--serif); font-size: clamp(22px, 3vw, 34px); line-height: 1.3;
  letter-spacing: -0.01em; max-width: 24ch; color: var(--ink);
}
.problem .loop {
  margin-top: 30px; font-family: var(--mono); font-size: clamp(13px, 1.6vw, 15px);
  color: var(--muted); line-height: 2;
}
.problem .loop b { color: var(--accent-deep); font-weight: 600; }
.problem .kill { margin-top: 26px; font-size: clamp(18px, 2vw, 22px); max-width: 46ch; }
.problem .kill strong { color: var(--ink); }

/* ---- steps ---- */
.steps { margin-top: 12px; }
.step {
  display: grid; grid-template-columns: 88px 1fr; gap: clamp(16px, 3vw, 40px);
  padding: 30px 0; border-top: 1px solid var(--rule); align-items: start;
}
.step:first-child { border-top: none; }
.step .num {
  font-family: var(--serif); font-size: clamp(40px, 6vw, 64px); line-height: 1;
  color: var(--accent); font-weight: 700;
}
.step h3 { font-size: clamp(19px, 2.1vw, 24px); font-weight: 700; letter-spacing: -0.01em; }
.step p { margin-top: 8px; color: var(--muted); font-size: clamp(16px, 1.7vw, 18px); max-width: 60ch; }

/* ---- feature ledger ---- */
.ledger { margin-top: 40px; border-top: 1px solid var(--rule-hard); }
.ledger-grid { display: grid; grid-template-columns: 1fr 1fr; }
.cell { padding: 26px clamp(18px, 3vw, 34px) 26px 0; border-bottom: 1px solid var(--rule); }
.ledger-grid .cell:nth-child(odd) { padding-left: 0; border-right: 1px solid var(--rule); padding-right: clamp(24px, 4vw, 48px); }
.ledger-grid .cell:nth-child(even) { padding-left: clamp(24px, 4vw, 48px); }
.cell h3 { font-size: 19px; font-weight: 700; letter-spacing: -0.01em; }
.cell h3 .n { font-family: var(--mono); font-size: 12px; color: var(--accent-deep); margin-right: 10px; font-weight: 400; }
.cell p { margin-top: 7px; color: var(--muted); font-size: 16px; }
@media (max-width: 680px) {
  .ledger-grid { grid-template-columns: 1fr; }
  .ledger-grid .cell:nth-child(odd) { border-right: none; padding-right: 0; }
  .ledger-grid .cell:nth-child(even) { padding-left: 0; }
}

/* ---- terminal / verdict ---- */
.verdict-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
@media (max-width: 820px) { .verdict-grid { grid-template-columns: 1fr; } }
.term {
  background: var(--ink); color: #ece4d2; border: 1.5px solid var(--rule-hard);
  box-shadow: 8px 8px 0 var(--accent); font-family: var(--mono); font-size: 14px; line-height: 1.9;
}
.term .bar { border-bottom: 1px solid #47412f; padding: 9px 14px; color: #8c856f; font-size: 12px; }
.term .body { padding: 18px 16px; overflow-x: auto; }
.term .l { white-space: pre; }
.term .g { color: #8c856f; }
.term .ok { color: #7fb06a; }
.term .no { color: #e07a5f; }
.term .arw { color: var(--accent); }
.verdict-copy h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(26px, 3.4vw, 40px); line-height: 1.08; letter-spacing: -0.015em; }
.verdict-copy p { margin-top: 16px; color: var(--muted); font-size: clamp(16px, 1.7vw, 18px); max-width: 46ch; }
.verdict-copy p strong { color: var(--ink); }

/* ---- compare ---- */
.compare { margin-top: 36px; border-top: 1px solid var(--rule-hard); }
.vs { padding: 28px 0; border-bottom: 1px solid var(--rule); display: grid; grid-template-columns: 240px 1fr; gap: clamp(16px, 4vw, 48px); }
.vs .who { font-family: var(--serif); font-size: clamp(20px, 2.4vw, 26px); font-weight: 600; letter-spacing: -0.01em; }
.vs .who small { display: block; font-family: var(--mono); font-size: 12px; color: var(--muted); font-weight: 400; letter-spacing: 0.02em; margin-top: 6px; text-transform: none; }
.vs p { color: var(--muted); font-size: clamp(16px, 1.7vw, 18px); max-width: 58ch; }
.vs p b { color: var(--ink); font-weight: 600; }
@media (max-width: 700px) { .vs { grid-template-columns: 1fr; gap: 12px; } }

/* ---- install ---- */
.install-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(28px, 5vw, 56px); align-items: start; }
@media (max-width: 820px) { .install-grid { grid-template-columns: 1fr; } }
.code {
  border: 1.5px solid var(--rule-hard); background: #fbf9f2; box-shadow: 8px 8px 0 var(--ink);
  font-family: var(--mono); font-size: 13.5px; line-height: 1.85;
}
.code .bar { border-bottom: 1px solid var(--rule-hard); padding: 9px 14px; background: var(--paper-2); color: var(--muted); font-size: 12px; }
.code .body { padding: 16px 16px; overflow-x: auto; }
.code .body pre { white-space: pre; }
.code .c { color: var(--muted); }
.code .p { color: var(--accent-deep); }
.code .k { color: var(--ink); font-weight: 600; }
.install-copy h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(26px, 3.4vw, 40px); line-height: 1.08; letter-spacing: -0.015em; }
.install-copy p { margin-top: 16px; color: var(--muted); font-size: clamp(16px, 1.7vw, 18px); max-width: 46ch; }
.install-copy ul { margin-top: 18px; list-style: none; }
.install-copy li { position: relative; padding-left: 22px; margin-top: 10px; color: var(--ink-2); font-size: 16px; }
.install-copy li::before { content: "\2192"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* ---- faq ---- */
.faq { margin-top: 28px; border-top: 1px solid var(--rule-hard); }
.qa { padding: 24px 0; border-bottom: 1px solid var(--rule); display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(16px, 4vw, 48px); }
.qa .q { font-family: var(--serif); font-size: clamp(18px, 2vw, 22px); font-weight: 600; letter-spacing: -0.01em; }
.qa .a { color: var(--muted); font-size: clamp(15px, 1.6vw, 17px); }
.qa .a a { color: var(--accent-deep); }
@media (max-width: 700px) { .qa { grid-template-columns: 1fr; gap: 8px; } }

/* ---- footer ---- */
footer.site { border-top: 1px solid var(--rule-hard); background: var(--paper-2); }
.finale { padding-top: clamp(56px, 9vw, 110px); padding-bottom: clamp(40px, 6vw, 72px); }
.finale h2 {
  font-family: var(--serif); font-weight: 700; font-size: clamp(34px, 7vw, 78px);
  line-height: 1.0; letter-spacing: -0.03em;
}
.finale h2 .mark { color: var(--accent); }
.colophon {
  border-top: 1px solid var(--rule); padding: 24px 0 40px;
  display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: baseline; justify-content: space-between;
  font-family: var(--mono); font-size: 13px; color: var(--muted);
}
.colophon a { color: var(--ink-2); }
.colophon a:hover { color: var(--accent); }
.colophon .l { display: flex; gap: 22px; flex-wrap: wrap; }