/* Keystone Precision Machining — industrial / capabilities-driven archetype.
   Engineering-doc aesthetic. Generalizable to tool & die, rigging, commercial HVAC,
   metal fabrication, scrap processing, etc. */

:root {
  --ink: #0a1929;
  --ink-2: #142840;
  --ink-soft: #4a5868;
  --paper: #ffffff;
  --paper-2: #f4f5f7;
  --paper-3: #e8eaee;
  --line: #d8dce2;
  --line-2: #e5e8ec;
  --orange: #ff6e1f;
  --orange-deep: #e6580c;
  --orange-soft: #fff1e6;
  --steel: #6b7886;
  --green: #2d9c5e;
  --display: 'IBM Plex Sans', -apple-system, system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --shadow-sm: 0 1px 2px rgba(10,25,41,.06);
  --shadow-md: 0 1px 3px rgba(10,25,41,.06), 0 8px 22px rgba(10,25,41,.08);
  --shadow-lg: 0 2px 6px rgba(10,25,41,.08), 0 16px 40px rgba(10,25,41,.12);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--display);
  font-size: 15.5px; line-height: 1.6;
  color: var(--ink);
  background: var(--paper-2);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 36px; }
@media (max-width: 720px) { .container { padding: 0 20px; } }

/* Concept banner */
.banner {
  background: var(--ink); color: white;
  font-family: var(--mono); font-size: 11.5px;
  text-align: center; padding: 8px 16px;
  letter-spacing: 0.06em;
  font-weight: 500;
}
.banner strong { color: var(--orange); font-weight: 700; }
.banner a { color: var(--orange); border-bottom: 1px dotted; }

/* Header */
.head {
  background: var(--paper);
  border-bottom: 2px solid var(--ink);
  position: sticky; top: 0; z-index: 50;
}
.head-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 18px 36px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark { width: 44px; height: 44px; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-text .name {
  font-family: var(--display); font-weight: 700;
  font-size: 21px; letter-spacing: 0.02em;
  color: var(--ink);
}
.brand-text .sub {
  font-family: var(--mono); font-weight: 500;
  font-size: 10.5px; letter-spacing: 0.08em;
  color: var(--steel); margin-top: 5px;
}
.nav { display: flex; align-items: center; gap: 28px; }
.nav a {
  font-family: var(--display); font-weight: 600;
  font-size: 13.5px; color: var(--ink-soft);
  letter-spacing: 0.01em;
  transition: color .15s;
}
.nav a:hover { color: var(--orange); }
.nav-cta {
  font-family: var(--mono) !important;
  background: var(--orange); color: white !important;
  padding: 11px 18px;
  font-weight: 700 !important; font-size: 12px !important;
  letter-spacing: 0.1em;
  border: 0;
  transition: background .15s;
  border-radius: 0;
  border-left: 3px solid var(--ink);
}
.nav-cta:hover { background: var(--orange-deep); color: white !important; }

@media (max-width: 880px) {
  .nav a:not(.nav-cta) { display: none; }
  .brand-text .sub { display: none; }
}

/* Spec strip — under header */
.spec-strip {
  background: var(--ink);
  color: white;
  font-family: var(--mono); font-size: 11.5px;
  letter-spacing: 0.06em;
  padding: 10px 0;
  border-bottom: 3px solid var(--orange);
}
.spec-row {
  display: flex; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.spec-key { color: var(--orange); margin-right: 8px; font-weight: 700; }
@media (max-width: 880px) { .spec-row { font-size: 10.5px; } }

/* Hero */
.hero {
  background:
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  padding: 70px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(10,25,41,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,25,41,.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  mask-image: linear-gradient(180deg, transparent, black 30%);
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: start;
}
.hero-tag {
  font-family: var(--mono); font-weight: 600;
  font-size: 11.5px; letter-spacing: 0.1em;
  color: var(--ink);
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 7px 14px;
  margin-bottom: 28px;
}
.tag-dot {
  width: 7px; height: 7px;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(45,156,94,.2);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(45,156,94,.2); }
  50% { box-shadow: 0 0 0 6px rgba(45,156,94,.05); }
}
.hero h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(38px, 5vw, 66px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 28px;
}
.hero h1 .hl {
  color: var(--orange);
  border-bottom: 4px solid var(--orange);
  padding-bottom: 2px;
}
.hero .lede {
  font-size: 17px; line-height: 1.6;
  color: var(--ink-soft);
  margin: 0 0 36px;
  max-width: 580px;
}
.hero-ctas { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 12px;
  background: var(--orange); color: white !important;
  padding: 16px 24px;
  font-family: var(--mono); font-weight: 700;
  font-size: 13px; letter-spacing: 0.08em;
  border: 0; cursor: pointer;
  border-left: 4px solid var(--ink);
  transition: background .15s, transform .15s;
  text-decoration: none !important;
}
.btn-primary:hover { background: var(--orange-deep); transform: translateY(-1px); }
.btn-primary .btn-arrow {
  font-size: 18px; line-height: 1;
}
.btn-secondary {
  font-family: var(--mono); font-weight: 600;
  font-size: 13px; letter-spacing: 0.06em;
  color: var(--ink);
  border-bottom: 2px solid var(--orange);
  padding: 6px 0;
  transition: color .15s;
}
.btn-secondary:hover { color: var(--orange); }

/* Hero spec card — capabilities sheet preview */
.hero-spec {
  background: var(--paper);
  border: 1.5px solid var(--ink);
  padding: 0;
  font-family: var(--mono);
  box-shadow: var(--shadow-lg);
}
.spec-head {
  background: var(--ink); color: white;
  padding: 12px 18px;
  display: flex; justify-content: space-between;
  font-size: 11.5px; letter-spacing: 0.1em;
}
.spec-doc { color: var(--orange); font-weight: 700; }
.spec-id { font-weight: 500; opacity: .8; }
.spec-table {
  padding: 6px 0;
}
.spec-line {
  display: flex; justify-content: space-between;
  padding: 9px 18px;
  font-size: 11.5px; letter-spacing: 0.04em;
  border-bottom: 1px dashed var(--line);
}
.spec-line:last-child { border-bottom: 0; }
.spec-line span:first-child { color: var(--ink-soft); font-weight: 500; }
.spec-v { color: var(--ink); font-weight: 600; }
.spec-foot {
  background: var(--paper-2);
  padding: 10px 18px;
  display: flex; justify-content: space-between;
  font-size: 11px; letter-spacing: 0.08em;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}
.spec-foot a { color: var(--orange); font-weight: 700; }

@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 50px 0 60px; }
  .hero-spec { max-width: 480px; }
}
@media (max-width: 720px) {
  .btn-primary { width: 100%; justify-content: center; }
}

/* Sections */
section.industries, section.capabilities, section.certs, section.facility, section.logos, section.rfq {
  padding: 90px 0;
}
.section-head { margin-bottom: 56px; max-width: 720px; }
.section-head .eyebrow,
.eyebrow {
  font-family: var(--mono); font-weight: 700;
  font-size: 11.5px; letter-spacing: 0.12em;
  color: var(--orange);
  display: inline-block; margin-bottom: 14px;
}
.section-head h2 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(32px, 3.8vw, 48px);
  line-height: 1.05; letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
}
.section-head p {
  margin-top: 18px;
  font-size: 16.5px; line-height: 1.6;
  color: var(--ink-soft);
}
@media (max-width: 720px) {
  section.industries, section.capabilities, section.certs, section.facility, section.logos, section.rfq { padding: 60px 0; }
  .section-head { margin-bottom: 36px; }
}

/* Industries */
.industries { background: var(--paper); border-top: 1px solid var(--line-2); }
.ind-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.ind {
  background: var(--paper-2);
  border-left: 4px solid var(--orange);
  padding: 32px 32px 28px;
  display: flex; flex-direction: column;
}
.ind-num {
  font-family: var(--mono); font-weight: 700;
  font-size: 12px; letter-spacing: 0.14em;
  color: var(--ink-soft);
  margin-bottom: 14px;
}
.ind h3 {
  font-family: var(--display); font-weight: 700;
  font-size: 24px; line-height: 1.15;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.ind p {
  color: var(--ink-soft);
  margin: 0 0 18px;
  font-size: 14.5px;
}
.ind ul {
  list-style: none; padding: 0; margin: 0;
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 0.04em;
  color: var(--ink);
  border-top: 1px solid var(--line);
  padding-top: 16px;
  display: flex; flex-direction: column; gap: 6px;
}
.ind ul li::before { content: '› '; color: var(--orange); font-weight: 700; }
@media (max-width: 880px) { .ind-grid { grid-template-columns: 1fr; } }

/* Capabilities matrix */
.capabilities { background: var(--paper-2); border-top: 1px solid var(--line); }
.cap-table {
  background: var(--paper);
  border: 1.5px solid var(--ink);
  margin-bottom: 40px;
  overflow-x: auto;
}
.cap-row {
  display: grid;
  grid-template-columns: 1.3fr 2.4fr 1.2fr 1fr 0.6fr;
  gap: 16px;
  padding: 14px 24px;
  font-size: 14px;
  border-bottom: 1px solid var(--line-2);
  align-items: center;
}
.cap-row:last-child { border-bottom: 0; }
.cap-row.cap-head {
  background: var(--ink); color: white;
  font-family: var(--mono); font-weight: 700;
  font-size: 11px; letter-spacing: 0.12em;
  padding: 12px 24px;
}
.cap-row > div:first-child { font-weight: 600; color: var(--ink); }
.cap-row > div:nth-child(2) { color: var(--ink-soft); font-size: 13.5px; }
.cap-row > div:nth-child(3),
.cap-row > div:nth-child(4),
.cap-row > div:last-child {
  font-family: var(--mono); font-size: 12.5px;
  color: var(--ink); font-weight: 600;
}
.cap-row > div:last-child { color: var(--orange); }
.cap-row:not(.cap-head):hover { background: var(--paper-2); }

/* Materials */
.materials {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 24px 28px;
}
.materials-label {
  font-family: var(--mono); font-weight: 700;
  font-size: 11.5px; letter-spacing: 0.12em;
  color: var(--orange);
  margin-bottom: 16px;
}
.materials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.materials-grid span {
  font-family: var(--mono); font-size: 12.5px;
  color: var(--ink);
  padding: 10px 14px;
  background: var(--paper-2);
  border: 1px solid var(--line-2);
  letter-spacing: 0.02em;
  font-weight: 500;
}
@media (max-width: 880px) {
  .materials-grid { grid-template-columns: repeat(2, 1fr); }
  .cap-row { grid-template-columns: 1fr 1.5fr; gap: 8px; padding: 14px 18px; font-size: 13px; }
  .cap-row.cap-head { display: none; }
  .cap-row > div:nth-child(3),
  .cap-row > div:nth-child(4) { grid-column: span 2; font-size: 11.5px; padding-top: 4px; border-top: 1px dashed var(--line-2); }
  .cap-row > div:last-child { display: none; }
}

/* Certifications */
.certs { background: var(--ink); color: white; border-top: 4px solid var(--orange); }
.certs .section-head h2 { color: white; }
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.cert {
  background: var(--ink-2);
  border: 1px solid #2a3a52;
  padding: 28px 24px;
  display: flex; gap: 20px;
  align-items: center;
}
.cert-badge {
  width: 76px; height: 76px;
  flex-shrink: 0;
  background: var(--orange);
  color: white;
  font-family: var(--mono); font-weight: 700;
  font-size: 13px;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  letter-spacing: 0.04em;
  line-height: 1.1;
  border: 2px solid var(--orange);
}
.cert-body { display: flex; flex-direction: column; gap: 4px; }
.cert-body strong {
  font-family: var(--display); font-weight: 700;
  font-size: 16px;
  color: white;
}
.cert-body span {
  font-size: 13px;
  color: rgba(255,255,255,.75);
}
.cert-body em {
  font-style: normal;
  font-family: var(--mono); font-size: 11px;
  color: rgba(255,110,31,.85);
  letter-spacing: 0.04em;
  margin-top: 4px;
}
@media (max-width: 980px) { .cert-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .cert-grid { grid-template-columns: 1fr; gap: 14px; } }

/* Facility */
.facility { background: var(--paper); }
.fac-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: start;
}
.fac-pitch h2 { font-family: var(--display); font-weight: 700; font-size: clamp(30px, 3.4vw, 44px); line-height: 1.1; letter-spacing: -0.02em; margin: 12px 0 22px; color: var(--ink); }
.fac-pitch p { font-size: 16.5px; line-height: 1.6; color: var(--ink-soft); margin: 0 0 36px; max-width: 480px; }
.fac-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--paper-2);
  border: 1.5px solid var(--ink);
}
.fac-stats > div {
  padding: 24px 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.fac-stats > div:nth-child(2n) { border-right: 0; }
.fac-stats > div:nth-child(n+3) { border-bottom: 0; }
.fac-stats strong {
  display: block;
  font-family: var(--display); font-weight: 700;
  font-size: 32px; line-height: 1;
  color: var(--orange);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.fac-stats span {
  font-family: var(--mono); font-weight: 600;
  font-size: 10.5px; letter-spacing: 0.12em;
  color: var(--ink-soft);
}
.fac-process {
  background: var(--ink); color: white;
  padding: 36px 32px;
  border-left: 4px solid var(--orange);
}
.proc-label {
  font-family: var(--mono); font-weight: 700;
  font-size: 11.5px; letter-spacing: 0.12em;
  color: var(--orange);
  margin-bottom: 24px;
}
.proc-steps {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 14px;
}
.proc-steps li {
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: 16px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(255,255,255,.1);
}
.proc-steps li:last-child { border-bottom: 0; }
.proc-num {
  font-family: var(--mono); font-weight: 700;
  font-size: 14px;
  color: var(--orange);
  letter-spacing: 0.04em;
}
.proc-steps strong {
  font-family: var(--display); font-weight: 600;
  font-size: 15px; color: white;
  display: block;
}
.proc-steps em {
  font-style: normal;
  font-family: var(--mono); font-size: 11.5px;
  color: rgba(255,255,255,.55);
  letter-spacing: 0.04em;
}
@media (max-width: 920px) { .fac-grid { grid-template-columns: 1fr; gap: 48px; } }

/* Logos */
.logos { background: var(--paper-2); border-top: 1px solid var(--line); padding: 56px 0 !important; }
.logos-label {
  font-family: var(--mono); font-weight: 700;
  font-size: 11.5px; letter-spacing: 0.12em;
  color: var(--ink-soft);
  text-align: center; margin-bottom: 32px;
}
.logos-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 22px;
}
.logo-cell {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 24px 16px;
  text-align: center;
  font-family: var(--mono); font-weight: 600;
  font-size: 13px; letter-spacing: 0.1em;
  color: var(--ink-soft);
}
.logos-fine {
  text-align: center;
  font-family: var(--mono); font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
  margin: 0;
}
@media (max-width: 880px) { .logos-row { grid-template-columns: repeat(3, 1fr); } }

/* RFQ form */
.rfq { background: var(--ink); color: white; border-top: 4px solid var(--orange); }
.rfq .section-head h2 { color: white; }
.rfq-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}
.rfq-pitch h2 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1.05; margin: 12px 0 22px;
  letter-spacing: -0.02em;
  color: white;
}
.rfq-pitch p {
  font-size: 16px; line-height: 1.6;
  color: rgba(255,255,255,.75);
  margin: 0 0 36px;
  max-width: 480px;
}
.rfq-contact {
  background: var(--ink-2);
  border: 1px solid #2a3a52;
  padding: 24px 26px;
  display: flex; flex-direction: column; gap: 14px;
}
.rfq-line {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 14px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(255,255,255,.08);
}
.rfq-line:last-child { border-bottom: 0; padding-bottom: 0; }
.rfq-label {
  font-family: var(--mono); font-weight: 700;
  font-size: 10.5px; letter-spacing: 0.12em;
  color: var(--orange);
}
.rfq-line a, .rfq-line {
  font-family: var(--mono); font-size: 13px;
  color: rgba(255,255,255,.92);
}
.rfq-line a { color: white; border-bottom: 1px dotted var(--orange); }
.rfq-line a:hover { color: var(--orange); }

.rfq-form {
  background: var(--paper);
  color: var(--ink);
  border: 1.5px solid var(--orange);
  padding: 32px;
  display: flex; flex-direction: column; gap: 14px;
  box-shadow: var(--shadow-lg);
}
.form-doc {
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 11.5px;
  letter-spacing: 0.12em;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 8px;
}
.doc-mono { color: var(--orange); font-weight: 700; }
.doc-id { color: var(--ink-soft); font-weight: 600; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.rfq-form label {
  display: flex; flex-direction: column;
  font-family: var(--mono); font-weight: 700;
  font-size: 10.5px; letter-spacing: 0.12em;
  color: var(--ink-soft);
  gap: 6px;
}
.rfq-form input,
.rfq-form select,
.rfq-form textarea {
  font-family: var(--display); font-weight: 500;
  font-size: 14.5px;
  padding: 11px 14px;
  border: 1.5px solid var(--line);
  background: var(--paper-2);
  color: var(--ink);
  transition: border-color .15s, box-shadow .15s, background .15s;
  letter-spacing: -0.005em;
}
.rfq-form input:focus,
.rfq-form select:focus,
.rfq-form textarea:focus {
  outline: 0;
  border-color: var(--orange);
  background: var(--paper);
  box-shadow: 0 0 0 3px var(--orange-soft);
}
.rfq-form textarea { resize: vertical; min-height: 90px; font-family: var(--display); }
.btn-full { width: 100%; justify-content: center; padding: 16px; }
.form-fine {
  font-family: var(--mono); font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  text-align: center;
  margin: 4px 0 0;
}
@media (max-width: 920px) {
  .rfq-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  .rfq-form { padding: 24px 20px; }
  .rfq-line { grid-template-columns: 1fr; gap: 4px; }
}

/* Footer */
.foot {
  background: black; color: white;
  padding: 50px 0 38px;
  border-top: 4px solid var(--orange);
}
.foot-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.foot-brand {
  display: flex; align-items: center; gap: 16px;
  font-size: 13px; line-height: 1.5;
}
.foot-brand strong { color: white; font-family: var(--display); font-weight: 700; font-size: 15px; letter-spacing: 0.04em; }
.foot-brand span { color: rgba(255,255,255,.55); font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; }
.foot-meta {
  text-align: right;
  font-family: var(--mono);
  font-size: 12.5px;
  color: rgba(255,255,255,.7);
  display: flex; flex-direction: column; gap: 6px;
  letter-spacing: 0.04em;
}
.foot-meta a { color: var(--orange); border-bottom: 1px dotted; }
.foot-credit { font-size: 11px; color: rgba(255,255,255,.45); margin-top: 8px; letter-spacing: 0.06em; }
@media (max-width: 720px) {
  .foot-inner { grid-template-columns: 1fr; gap: 24px; }
  .foot-meta { text-align: left; }
}