/* =========================================================
   ORACLE LIFTS & ESCALATORS — Quotation
   Design language: engineering blueprint × shaft schematic.
   Palette:
     --ink        #10161d  (near-black graphite)
     --blueprint  #1b3a5c  (blueprint blue)
     --blueprint-2#254b73  (lighter blueprint)
     --paper      #f2efe6  (drawing paper)
     --steel      #8a97a3  (steel grey)
     --amber      #e2a63b  (safety amber — signature accent)
   Type:
     Display: Space Grotesk (mechanical, geometric)
     Body:    Source Serif 4 (documentary, contractual)
     Mono:    IBM Plex Mono (specs, data, labels)
   ========================================================= */

:root {
  --ink: #10161d;
  --ink-soft: #1a222c;
  --blueprint: #1b3a5c;
  --blueprint-2: #254b73;
  --paper: #f2efe6;
  --paper-dim: #e7e2d3;
  --steel: #8a97a3;
  --steel-line: #3a4753;
  --amber: #e2a63b;
  --amber-soft: #f0c983;

  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Source Serif 4", serif;
  --font-mono: "IBM Plex Mono", monospace;

  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

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

a { color: inherit; }

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

/* ---------- blueprint grid backdrop ---------- */
.blueprint-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(27,58,92,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27,58,92,0.05) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* ---------- top nav ---------- */
.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 1.75rem;
  background: rgba(16,22,29,0.96);
  border-bottom: 1px solid var(--steel-line);
  backdrop-filter: blur(6px);
}

.topnav__brand { display: flex; align-items: center; gap: 0.65rem; }
.topnav__logo { height: 30px; width: auto; border-radius: 2px; }
.topnav__name {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--paper);
  text-transform: uppercase;
}
.topnav__name span { color: var(--amber); display: block; font-size: 0.62rem; }

.topnav__links {
  display: flex;
  gap: 1.35rem;
  flex-wrap: wrap;
}
.topnav__links a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--steel);
  white-space: nowrap;
  transition: color 0.15s ease;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
.topnav__links a:hover,
.topnav__links a:focus-visible { color: var(--amber-soft); border-bottom-color: var(--amber); }

.topnav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 32px;
  height: 32px;
  background: none;
  border: 1px solid var(--steel-line);
  border-radius: 3px;
  cursor: pointer;
}
.topnav__toggle span {
  display: block;
  height: 2px;
  margin: 0 6px;
  background: var(--paper);
}

@media (max-width: 880px) {
  .topnav__toggle { display: flex; }
  .topnav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--ink);
    padding: 1rem 1.75rem 1.4rem;
    border-bottom: 1px solid var(--steel-line);
    display: none;
    gap: 0.9rem;
  }
  .topnav__links.is-open { display: flex; }
}

/* ---------- cover / hero ---------- */
.cover {
  position: relative;
  overflow: hidden;
  min-height: 78vh;
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, var(--ink) 0%, var(--ink-soft) 55%, var(--blueprint) 130%);
  color: var(--paper);
  padding: 4rem 1.75rem;
}

.cover__shaft {
  position: absolute;
  right: 6%;
  top: 0;
  bottom: 0;
  width: 210px;
  border-left: 1px dashed rgba(226,166,59,0.35);
  border-right: 1px dashed rgba(226,166,59,0.35);
  opacity: 0.9;
}
.cover__rail { position: absolute; top: 0; bottom: 0; width: 2px; background: rgba(138,151,163,0.4); }
.cover__rail--l { left: 18px; }
.cover__rail--r { right: 18px; }
.cover__car {
  position: absolute;
  left: 32px;
  right: 32px;
  height: 130px;
  border: 1.5px solid var(--amber);
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(226,166,59,0.14), transparent);
  animation: rise 9s ease-in-out infinite;
}
@keyframes rise {
  0%   { top: 78%; }
  45%  { top: 12%; }
  55%  { top: 12%; }
  100% { top: 78%; }
}
@media (prefers-reduced-motion: reduce) {
  .cover__car { animation: none; top: 40%; }
}
@media (max-width: 700px) { .cover__shaft { display: none; } }

.cover__content { position: relative; z-index: 1; max-width: 640px; }
.cover__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-soft);
  margin: 0 0 1rem;
}
.cover__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  line-height: 1.02;
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
}
.cover__subtitle {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--paper-dim);
  margin: 0 0 2.6rem;
  max-width: 30ch;
}

.cover__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 1.2rem 2rem;
  margin: 0;
  padding-top: 1.6rem;
  border-top: 1px solid rgba(226,166,59,0.3);
}
.cover__meta dt {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 0.3rem;
}
.cover__meta dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

/* ---------- shared: fillable placeholders ---------- */
.fillable, .fillable-inline {
  color: var(--blueprint-2);
  font-style: italic;
}
.fillable {
  background: repeating-linear-gradient(-45deg, rgba(27,58,92,0.06) 0 6px, transparent 6px 12px);
  border-bottom: 1px dashed var(--blueprint-2);
  padding: 0.05rem 0.3rem;
  border-radius: 2px;
}
.fillable-inline {
  border-bottom: 1px dashed var(--blueprint-2);
  padding: 0 0.15rem;
}

/* ---------- section shell ---------- */
main { max-width: var(--max); margin: 0 auto; padding: 0 1.75rem; }

.section {
  padding: 4.5rem 0;
  border-bottom: 1px solid rgba(27,58,92,0.14);
}
.section:last-of-type { border-bottom: none; }

.section__head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.8rem;
}
.section__num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--amber);
  border: 1px solid var(--amber);
  border-radius: 3px;
  padding: 0.15rem 0.5rem;
}
.section__head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin: 0;
  letter-spacing: -0.01em;
}

.section__body p { margin: 0 0 1.1rem; max-width: 74ch; }
.lede { font-size: 1.15rem; }

/* ---------- split layouts ---------- */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}
.split-grid--image { grid-template-columns: 1.15fr 0.85fr; }
.split-grid--image-first { grid-template-columns: 0.85fr 1.15fr; }
@media (max-width: 820px) {
  .split-grid, .split-grid--image, .split-grid--image-first { grid-template-columns: 1fr; }
}

.panel {
  background: var(--paper-dim);
  border: 1px solid rgba(27,58,92,0.18);
  border-left: 3px solid var(--amber);
  padding: 1.6rem 1.7rem;
  border-radius: 2px;
}
.panel h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0 0 0.6rem;
}
.panel p { margin: 0; }

/* ---------- fact cards ---------- */
.fact-row { display: flex; gap: 1.2rem; flex-wrap: wrap; margin-top: 1.5rem; }
.fact-card {
  flex: 1 1 220px;
  background: var(--ink);
  color: var(--paper);
  padding: 1.2rem 1.4rem;
  border-radius: 3px;
  border-top: 2px solid var(--amber);
}
.fact-card__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 0.4rem;
}
.fact-card__value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
}
.fact-card .fillable { background: none; border-bottom: 1px dashed var(--amber-soft); color: var(--amber-soft); }

/* ---------- stat strip ---------- */
.stat-strip {
  display: flex;
  gap: 1px;
  background: rgba(27,58,92,0.18);
  border: 1px solid rgba(27,58,92,0.18);
  margin-bottom: 1.8rem;
  border-radius: 2px;
  overflow: hidden;
}
.stat {
  flex: 1;
  background: var(--paper-dim);
  padding: 1.4rem 1rem;
  text-align: center;
}
.stat__value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.9rem;
  color: var(--blueprint);
}
.stat__value.fillable { background: none; border: none; color: var(--blueprint-2); }
.stat__label {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel-line);
}

/* ---------- check list ---------- */
.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.check-list li {
  position: relative;
  padding-left: 1.5rem;
  max-width: 60ch;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 9px;
  height: 9px;
  background: var(--amber);
  border-radius: 1px;
  transform: rotate(45deg);
}

.caption-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blueprint);
  margin: 0 0 0.9rem;
}

/* ---------- diagram figure ---------- */
.diagram-figure {
  margin: 0;
  background: var(--ink);
  padding: 1.2rem;
  border-radius: 3px;
  border: 1px solid var(--steel-line);
}
.diagram-figure img { border-radius: 2px; margin: 0 auto; }
.diagram-figure figcaption {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  color: var(--steel);
  text-align: center;
  margin-top: 0.8rem;
}

/* ---------- tables ---------- */
.table-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 2.2rem 0 0.9rem;
}
.table-title:first-of-type { margin-top: 0; }

.table-wrap {
  overflow-x: auto;
  border: 1px solid rgba(27,58,92,0.2);
  border-radius: 3px;
  margin-bottom: 1rem;
}

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.spec-table th, .spec-table td,
.price-table th, .price-table td {
  padding: 0.65rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid rgba(27,58,92,0.12);
}
.spec-table thead th, .price-table thead th {
  background: var(--blueprint);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}
.spec-table tbody tr:nth-child(even),
.price-table tbody tr:nth-child(even) { background: rgba(27,58,92,0.035); }
.spec-table tbody tr:hover { background: rgba(226,166,59,0.08); }
.col-no { width: 3.5rem; font-family: var(--font-mono); color: var(--steel-line); }
.spec-table--compact td:first-child { font-weight: 600; }

.price-table td, .price-table th { font-family: var(--font-mono); font-size: 0.85rem; }
.price-table__tax td { color: var(--blueprint-2); }
.price-table__total td {
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  font-family: var(--font-display);
}
.price-table__words td { font-style: italic; color: var(--steel-line); }

.note {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--blueprint-2);
  border-left: 2px solid var(--amber);
  padding-left: 0.9rem;
}

/* ---------- payment terms ---------- */
.payment-terms { list-style: none; margin: 0 0 1.6rem; padding: 0; display: grid; gap: 0.7rem; }
.payment-terms li {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  background: var(--paper-dim);
  padding: 0.75rem 1.1rem;
  border-radius: 2px;
}
.payment-terms__pct {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--blueprint);
  min-width: 3.4rem;
}
.thanking { font-style: italic; }

/* ---------- feature grid ---------- */
.group-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 2.4rem 0 1.1rem;
}
.group-title:first-of-type { margin-top: 0; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.1rem;
  margin-bottom: 0.5rem;
}
.feature {
  padding: 1.1rem 1.2rem;
  border: 1px solid rgba(27,58,92,0.16);
  border-top: 2px solid var(--blueprint-2);
  border-radius: 2px;
  background: #fff;
}
.feature h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  margin: 0 0 0.45rem;
}
.feature p { margin: 0; font-size: 0.92rem; }

/* ---------- terms lists ---------- */
.terms-list {
  margin: 0 0 1.5rem;
  padding-left: 1.3rem;
  display: grid;
  gap: 0.6rem;
}
.terms-list li { max-width: 74ch; }
.terms-list--long { gap: 0.75rem; font-size: 0.95rem; }

/* ---------- signoff ---------- */
.signoff {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 2rem;
  margin-top: 2.4rem;
}
@media (max-width: 640px) { .signoff { grid-template-columns: 1fr; } }
.signoff__block { display: flex; flex-direction: column; }
.signoff__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--steel-line);
  margin-bottom: 2.4rem;
}
.signoff__line { border-bottom: 1px solid var(--ink); margin-bottom: 0.5rem; }
.signoff__role { font-family: var(--font-mono); font-size: 0.68rem; color: var(--steel); }

/* ---------- footer ---------- */
.footer {
  background: var(--ink);
  color: var(--steel);
  padding: 2.4rem 1.75rem 3rem;
  text-align: center;
}
.footer__brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  margin-bottom: 0.8rem;
}
.footer__brand img { height: 26px; border-radius: 2px; }
.footer__brand span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--paper);
}
.footer p { margin: 0; font-family: var(--font-mono); font-size: 0.72rem; }

/* ---------- back to top ---------- */
.back-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--amber);
  color: var(--ink);
  border-radius: 50%;
  text-decoration: none;
  font-size: 1.1rem;
  box-shadow: 0 4px 14px rgba(16,22,29,0.35);
  z-index: 40;
}