/* Skumetra — temporary business-card site
   Palette: teal #14706A / deep teal #0D564F / charcoal #16211F
   Type: IBM Plex Sans + IBM Plex Mono */

:root {
  --teal: #14706a;
  --teal-deep: #0d564f;
  --teal-tint: #e8f1ef;
  --teal-line: #cfe0dd;
  --ink: #16211f;
  --ink-2: #4c5a57;
  --ink-3: #5b6a67;
  --paper: #fbfaf8;
  --surface: #f4f3ef;
  --line: #e6e4de;
  --line-2: #dcdad3;
  --risk: #b04a37;
  --warn: #96701a;
  --wrap: 1160px;
  --gutter: 24px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.025em; text-wrap: pretty; }
p { margin: 0; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; }

a { color: var(--teal-deep); text-decoration: none; }
a:hover { color: var(--teal); }

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection { background: var(--teal-tint); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: #fff;
  padding: 12px 18px;
  font-size: 14px;
}
.skip:focus { left: 12px; top: 12px; color: #fff; }

.mono {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

/* ---------- Logo ---------- */

.logo { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.logo-word {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.035em;
  color: var(--ink);
}
.logo:hover .logo-word { color: var(--ink); }

/* ---------- Header ---------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 250, 248, 0.93);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.head-row {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.head-nav { display: flex; align-items: center; gap: 4px; }
.head-links { display: flex; align-items: center; gap: 4px; }
.head-links a {
  padding: 10px 12px;
  font-size: 14.5px;
  color: var(--ink-2);
}
.head-links a:hover { color: var(--teal-deep); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 3px;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease;
}
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-deep); color: #fff; }
.btn-primary:active { background: #0a443f; }
.btn-sm { height: 40px; padding: 0 18px; font-size: 14.5px; }
.btn-lg { height: 52px; padding: 0 28px; font-size: 16px; }

.btn-quiet {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 52px;
  font-size: 16px;
  color: var(--teal-deep);
  border-bottom: 1px solid var(--teal-line);
}
.btn-quiet:hover { border-bottom-color: var(--teal); }

.menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-left: 4px;
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: 3px;
  color: var(--ink);
  cursor: pointer;
}
.menu-btn:hover { background: var(--surface); }

.mobile-menu { display: none; border-top: 1px solid var(--line); }
.mobile-menu.open { display: block; }
.mobile-menu ul { padding: 8px var(--gutter) 18px; }
.mobile-menu a {
  display: block;
  padding: 14px 0;
  font-size: 16px;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

/* ---------- Sections ---------- */

.band {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.sec { padding-block: clamp(60px, 8vw, 104px); }
.sec-sm { padding-block: clamp(56px, 7vw, 92px); }

.h2 { font-size: clamp(26px, 3.2vw, 38px); line-height: 1.18; }
.lede {
  font-size: clamp(16.5px, 1.5vw, 18.5px);
  line-height: 1.62;
  color: var(--ink-2);
}
.note {
  font-size: 15px;
  line-height: 1.66;
  color: #5b6a67;
}
.measure { max-width: 700px; }

/* ---------- Hero ---------- */

.hero { padding-block: clamp(52px, 9vw, 112px) clamp(48px, 7vw, 88px); }
.hero h1 {
  font-size: clamp(32px, 5.4vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.035em;
  max-width: 15.5em;
}
.status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 13px 6px 10px;
  background: var(--teal-tint);
  border-radius: 999px;
  margin-bottom: 26px;
  color: var(--teal-deep);
}
.status .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }
.cta-row {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 28px;
}
.boundary {
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--ink-3);
  max-width: 44em;
}

/* ---------- Problem cards ---------- */

.cards {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
  gap: 1px;
  background: #e0ded7;
  border: 1px solid #e0ded7;
  border-radius: 3px;
  overflow: hidden;
}
.card { background: var(--paper); padding: 30px 28px 34px; }
.card .bar { width: 26px; height: 3px; margin-bottom: 22px; background: var(--ink-3); }
.card h3 { font-size: 18.5px; letter-spacing: -0.01em; }
.card p { margin-top: 12px; font-size: 15.5px; line-height: 1.6; color: var(--ink-2); }

/* ---------- Workflow ---------- */

.flow {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.flow li { padding-right: 28px; }
.flow li:last-child { padding-right: 0; }
.flow .rail { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.flow .num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--teal);
  border-radius: 50%;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 12.5px;
  color: var(--teal-deep);
}
.flow li:last-child .num { background: var(--teal); color: #fff; }
.flow .line { flex: 1; height: 1px; background: var(--line-2); }
.flow p { font-size: 16.5px; font-weight: 500; line-height: 1.45; }
.flow-note {
  margin-top: 44px;
  max-width: 620px;
  padding-left: 20px;
  border-left: 2px solid var(--teal-line);
}

/* ---------- Capability list ---------- */

.caps {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(238px, 1fr));
  gap: 0 44px;
}
.caps li {
  display: flex;
  align-items: baseline;
  gap: 13px;
  padding: 16px 0;
  border-bottom: 1px solid #e0ded7;
  font-size: 16px;
}
.caps .sq { width: 5px; height: 5px; flex-shrink: 0; background: var(--teal); }

/* ---------- Audience ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(36px, 5vw, 72px);
  align-items: start;
}
.checks li {
  display: flex;
  gap: 14px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: 16px;
  line-height: 1.5;
}
.checks svg { flex-shrink: 0; margin-top: 5px; }

/* ---------- Control (dark) ---------- */

.dark { background: var(--ink); color: #f2f1ed; }
.dark .h2 { color: var(--paper); }
.dark p { color: #b8c2bf; }
.panel { border: 1px solid #33403d; border-radius: 3px; background: #1c2826; }
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 22px;
  border-bottom: 1px solid #33403d;
}
.panel-head .mono { color: #7ec3bb; }
.panel-head .mono.plain { text-transform: none; letter-spacing: 0.02em; color: #7d8b87; }
.panel ul { padding: 4px 22px 16px; }
.panel li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  padding: 13px 0;
  border-bottom: 1px solid #2a3634;
  font-size: 15px;
  color: #d8dedc;
}
.panel li:last-child { border-bottom: 0; }
.panel li .tag {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #7ec3bb;
}
.panel li .tag.off { color: #7d8b87; }
.panel-foot {
  padding: 16px 22px;
  border-top: 1px solid #33403d;
  font-size: 13.5px;
  line-height: 1.6;
  color: #94a19d;
}

/* ---------- Status ---------- */

.status-cols {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
  gap: 40px;
}
.status-cols h3 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-2);
}
.status-cols li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 14px 0;
  font-size: 16px;
  line-height: 1.45;
  border-bottom: 1px solid var(--line);
}
.status-cols .mark { flex-shrink: 0; width: 14px; color: var(--teal); font-size: 14px; }
.status-cols .later { color: var(--ink-2); }
.status-cols .later .mark { color: var(--line-2); }

/* ---------- Contact ---------- */

.contact-inner { max-width: 720px; }
.contact-meta {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 6px 28px;
  font-size: 15px;
  color: var(--ink-3);
}

/* ---------- Footer ---------- */

.site-foot {
  border-top: 1px solid var(--line);
  padding: 52px 0 40px;
}
.foot-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 32px 48px;
}
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 26px; }
.foot-links a { font-size: 15px; color: var(--ink-2); }
.foot-links a:hover { color: var(--teal-deep); }
.foot-fine {
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 32px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink-3);
}

/* ---------- Legal pages ---------- */

.legal { padding-block: clamp(52px, 8vw, 96px) clamp(60px, 8vw, 100px); max-width: 720px; }
.legal h1 { font-size: clamp(30px, 4.2vw, 44px); line-height: 1.12; }
.legal h2 { font-size: 19px; margin-top: 44px; }
.legal p { margin-top: 16px; font-size: 16.5px; line-height: 1.68; color: var(--ink-2); }
.legal ul { margin-top: 16px; }
.legal ul li {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  font-size: 16.5px;
  line-height: 1.6;
  color: var(--ink-2);
}
.legal ul li::before { content: ""; flex-shrink: 0; width: 5px; height: 5px; margin-top: 11px; background: var(--teal); }
.legal .back { margin-top: 52px; display: inline-flex; gap: 8px; font-size: 15.5px; }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; }
  .flow { grid-template-columns: repeat(2, 1fr); gap: 32px 0; }
  .flow li:nth-child(2) { padding-right: 0; }
}

@media (max-width: 780px) {
  .head-links { display: none; }
  .menu-btn { display: inline-flex; }
  .flow { grid-template-columns: 1fr; gap: 0; }
  .flow li {
    display: grid;
    grid-template-columns: 32px 1fr;
    column-gap: 14px;
    padding: 0 0 24px;
    position: relative;
  }
  .flow li:last-child { padding-bottom: 0; }
  .flow .rail { margin-bottom: 0; }
  .flow .line { display: none; }
  .flow p { padding-top: 5px; }
  .flow li::after {
    content: "";
    position: absolute;
    left: 16px;
    top: 38px;
    height: calc(100% - 38px);
    width: 1px;
    background: var(--line-2);
  }
  .flow li:last-child::after { display: none; }
}

@media (max-width: 600px) {
  :root { --gutter: 20px; }
  .cta-row .btn-lg, .cta-row .btn-quiet { width: 100%; }
  .btn-quiet { justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}