/* Devetra — engineering terminal on light paper. */

:root {
  --paper:   #f6f7f5;
  --panel:   #ffffff;
  --ink:     #1a211c;
  --muted:   #5d6b62;
  --green:   #0e7a4a;
  --green-2: #0c6a40;
  --amber:   #a8620f;
  --line:    #d8ded8;
  --bar:     #1a211c;
  --bar-ink: #e7ece8;
}

* { box-sizing: border-box; margin: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cursor { animation: none; }
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  font-size: 16.5px;
  line-height: 1.65;
}

a { color: inherit; }
.dim { color: var(--muted); font-weight: 400; }
.ok { color: var(--green); }

/* ---------- top bar: terminal titlebar ---------- */
.bar {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 12px clamp(20px, 5vw, 64px);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  font-family: "IBM Plex Mono", monospace;
}
.brand { font-weight: 600; font-size: 15px; text-decoration: none; }
.bar nav { display: flex; gap: clamp(8px, 2.2vw, 22px); align-items: center; flex-wrap: wrap; }
.bar nav a { text-decoration: none; font-size: 13.5px; color: var(--muted); }
.bar nav a:hover { color: var(--ink); }
.nav-cta {
  color: var(--paper) !important; background: var(--green);
  padding: 5px 12px; border-radius: 2px;
}
.nav-cta:hover { background: var(--green-2); }

/* ---------- hero ---------- */
.hero {
  max-width: 1000px;
  margin: 0 auto;
  padding: clamp(64px, 10vw, 120px) clamp(20px, 5vw, 64px) clamp(48px, 6vw, 80px);
}
.prompt {
  font-family: "IBM Plex Mono", monospace; font-size: 14px;
  color: var(--green); margin-bottom: 20px;
}
h1 {
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -.02em;
  margin-bottom: 22px;
}
.cursor { color: var(--green); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.lede { font-size: clamp(16.5px, 1.9vw, 19px); color: var(--muted); max-width: 62ch; margin-bottom: 30px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block; text-decoration: none;
  font-family: "IBM Plex Mono", monospace; font-weight: 500; font-size: 14.5px;
  padding: 12px 20px; border-radius: 2px;
}
.btn-solid { background: var(--green); color: #fff; }
.btn-solid:hover { background: var(--green-2); }
.btn-ghost { border: 1px solid var(--line); background: var(--panel); }
.btn-ghost:hover { border-color: var(--muted); }
.sysline {
  margin-top: 44px; padding-top: 18px; border-top: 1px solid var(--line);
  font-family: "IBM Plex Mono", monospace; font-size: 13px; color: var(--ink);
}

/* ---------- sections ---------- */
.section {
  max-width: 1000px; margin: 0 auto;
  padding: clamp(44px, 6vw, 72px) clamp(20px, 5vw, 64px);
  border-top: 1px solid var(--line);
}
h2 {
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600; font-size: clamp(20px, 2.6vw, 26px);
  letter-spacing: .01em;
  margin-bottom: 8px;
}
.sec-n { color: var(--green); }
.sec-sub { color: var(--muted); max-width: 62ch; margin-bottom: 34px; }

/* services: ledger rows */
.svc-list { display: flex; flex-direction: column; }
.svc {
  border: 1px solid var(--line); background: var(--panel);
  padding: 20px 22px; margin-top: -1px;
}
.svc-flag { border-left: 3px solid var(--green); }
.svc-head {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 14px; flex-wrap: wrap; margin-bottom: 8px;
}
.svc h3 { font-family: "IBM Plex Mono", monospace; font-size: 16px; font-weight: 600; }
.tag {
  font-family: "IBM Plex Mono", monospace; font-size: 11.5px;
  color: var(--muted); letter-spacing: .04em;
}
.tag-edge {
  color: var(--amber); border: 1px solid currentColor;
  border-radius: 2px; padding: 2px 8px; text-transform: uppercase; letter-spacing: .1em;
}
.svc p { font-size: 15px; color: var(--muted); max-width: 74ch; }

/* work: log entries */
.cases { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.case { border: 1px solid var(--line); background: var(--panel); padding: 22px; }
.case-meta {
  font-family: "IBM Plex Mono", monospace; font-size: 12px;
  color: var(--muted); margin-bottom: 12px;
  border-bottom: 1px dashed var(--line); padding-bottom: 10px;
}
.case-meta span { color: var(--ink); }
.case-meta .ok { color: var(--green); }
.case h3 { font-size: 17.5px; font-weight: 600; letter-spacing: -.01em; margin-bottom: 8px; text-wrap: balance; }
.case p { font-size: 14.5px; color: var(--muted); }

/* approach: pipeline stages */
.pipeline { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; }
.stage { border-top: 2px solid var(--ink); padding-top: 14px; }
.stage-n {
  font-family: "IBM Plex Mono", monospace; font-size: 12px;
  color: var(--green); margin-bottom: 6px;
}
.stage h3 { font-family: "IBM Plex Mono", monospace; font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.stage p { font-size: 14.5px; color: var(--muted); }

/* stack: yaml block */
.yaml { border: 1px solid var(--line); background: var(--panel); max-width: 720px; }
.yaml-name {
  font-family: "IBM Plex Mono", monospace; font-size: 12.5px; color: var(--muted);
  border-bottom: 1px solid var(--line); padding: 10px 18px;
  background: var(--paper);
}
.yaml pre {
  font-family: "IBM Plex Mono", monospace; font-size: 14px; line-height: 1.9;
  padding: 18px; margin: 0; overflow-x: auto; color: var(--ink);
}

/* about */
.about { max-width: 68ch; }
.about p { margin-bottom: 14px; }
.certs-title {
  font-family: "IBM Plex Mono", monospace; font-size: 14px;
  color: var(--green); margin: 22px 0 10px !important;
}
.certs { list-style: none; padding: 0; margin: 0 0 18px; }
.certs li {
  font-family: "IBM Plex Mono", monospace; font-size: 14px;
  padding: 7px 0; border-bottom: 1px dashed var(--line);
}
.quiet { color: var(--muted); font-size: 15px; }

/* contact */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(26px, 4vw, 56px);
  align-items: start;
}
.contact-h { font-size: clamp(21px, 2.6vw, 27px); font-weight: 700; letter-spacing: -.015em; text-wrap: balance; margin-bottom: 12px; }
.contact-copy > p { color: var(--muted); margin-bottom: 24px; }
.line-card {
  display: inline-block; border: 1px solid var(--line); background: var(--panel);
  padding: 12px 20px; margin-bottom: 16px;
}
.line-tag {
  font-family: "IBM Plex Mono", monospace; font-size: 11.5px;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--green); margin-bottom: 2px;
}
.line-card a { text-decoration: none; font-weight: 700; font-size: 18px; }
.alt-links { font-size: 14.5px; line-height: 2; }
.alt-links a { color: var(--muted); }
.alt-links a:hover { color: var(--ink); }
.inquiry {
  border: 1px solid var(--line); background: var(--panel);
  padding: clamp(20px, 3vw, 30px);
  display: flex; flex-direction: column; gap: 15px;
}
.form-title {
  font-family: "IBM Plex Mono", monospace; font-size: 12.5px;
  letter-spacing: .1em; text-transform: uppercase; color: var(--green);
}
.inquiry label {
  display: block; font-family: "IBM Plex Mono", monospace;
  font-size: 13px; font-weight: 500;
}
.inquiry input, .inquiry textarea {
  display: block; width: 100%; margin-top: 6px;
  font-family: "IBM Plex Sans", sans-serif; font-size: 15.5px; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: 2px;
  padding: 10px 12px; resize: vertical;
}
.inquiry input:focus, .inquiry textarea:focus {
  outline: 2px solid var(--green); outline-offset: 1px; border-color: transparent;
}
.inquiry .btn { border: 0; cursor: pointer; align-self: flex-start; }
.form-hint { font-size: 13px; color: var(--muted); }

/* ---------- footer: tmux status bar ---------- */
.statusbar {
  display: flex; align-items: stretch; flex-wrap: wrap;
  background: var(--bar); color: var(--bar-ink);
  font-family: "IBM Plex Mono", monospace; font-size: 12.5px;
}
.seg { padding: 10px 16px; border-right: 1px solid #33403a; display: flex; align-items: center; }
.seg a { color: inherit; text-decoration: none; }
.seg a:hover { text-decoration: underline; }
.seg-a { background: var(--green); color: #fff; font-weight: 600; }
.grow { flex: 1; }
.seg-ok { color: #7ed09a; border-right: 0; }

@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; }
  .bar nav a:not(.nav-cta) { display: none; }
}