/* ==========================================================================
   SURFACE — design tokens + components
   Blueprint / engineering-drawing direction:
   deep navy ground, safety-orange accent, mono technical labels.
   ========================================================================== */

:root {
  /* Color */
  --navy-950: #071522;
  --navy-900: #0b1b2b;
  --navy-850: #0e2234;
  --navy-800: #12293e;
  --navy-700: #1a3550;
  --line: rgba(143, 169, 196, 0.16);
  --line-strong: rgba(143, 169, 196, 0.32);
  --ink: #ffffff;
  --ink-soft: #c7d7e6;
  --ink-muted: #8fa9c4;
  --blueprint: #6f9bc4;
  --orange: #ee5522;
  --orange-hot: #ff6b33;
  --orange-dim: rgba(238, 85, 34, 0.12);
  --green: #4ec38a;

  /* Type */
  --font-display: 'Archivo', 'Arial Narrow', sans-serif;
  --font-body: 'Satoshi', 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --text-hero: clamp(2.35rem, 4.6vw, 4rem);
  --text-3xl: clamp(2.1rem, 4.4vw, 3.4rem);
  --text-2xl: clamp(1.75rem, 3.2vw, 2.6rem);
  --text-xl: clamp(1.35rem, 2vw, 1.75rem);
  --text-lg: 1.125rem;
  --text-base: 1rem;
  --text-sm: 0.875rem;
  --text-xs: 0.75rem;

  /* Space */
  --section-y: clamp(4.5rem, 9vw, 8.5rem);
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --maxw: 1240px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--navy-900);
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

::selection { background: var(--orange); color: #fff; }

/* --------------------------------------------------------------- Layout */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); position: relative; }

.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

/* Blueprint grid background */
.blueprint {
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: center top;
}
.blueprint-fade {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(120% 80% at 50% 0%, transparent 20%, var(--navy-900) 78%);
}

/* --------------------------------------------------------------- Type */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0;
  line-height: 1.02;
  letter-spacing: -0.015em;
  font-variation-settings: 'wdth' 88, 'wght' 800;
  text-transform: uppercase;
  text-wrap: balance;
}

h1 { font-size: var(--text-hero); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-xl); letter-spacing: 0; }

.h-sub {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-variation-settings: 'wdth' 90, 'wght' 700;
  text-transform: uppercase;
  color: var(--ink);
  line-height: 1.05;
}

.accent { color: var(--orange); }

.label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blueprint);
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}
.label::before {
  content: '';
  width: 26px;
  height: 1px;
  background: var(--orange);
  flex: none;
}
.label--plain::before { display: none; }

.lede {
  font-size: var(--text-lg);
  color: var(--ink-soft);
  max-width: 62ch;
}

.muted { color: var(--ink-muted); }
.small { font-size: var(--text-sm); }
.tiny { font-size: var(--text-xs); }

.mono {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blueprint);
}

/* --------------------------------------------------------------- Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  padding: 0.95rem 1.5rem;
  border: 1px solid transparent;
  border-radius: 2px;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.18s cubic-bezier(0.16, 1, 0.3, 1), background 0.18s ease,
    border-color 0.18s ease, color 0.18s ease;
  min-height: 48px;
}
.btn:focus-visible { outline: 2px solid var(--orange-hot); outline-offset: 3px; }

.btn--primary { background: var(--orange); color: #fff; font-weight: 700; }
.btn--primary:hover { background: var(--orange-hot); transform: translateY(-2px); }

.btn--ghost { border-color: var(--line-strong); color: var(--ink); background: transparent; }
.btn--ghost:hover { border-color: var(--orange); color: var(--orange); }

.btn--block { width: 100%; }

/* --------------------------------------------------------------- Cards */
.card {
  background: var(--navy-850);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: clamp(1.35rem, 2.4vw, 2rem);
  position: relative;
}
.card--hover { transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease; }
.card--hover:hover { border-color: var(--line-strong); transform: translateY(-3px); }

.card-index {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--orange);
  display: block;
  margin-bottom: 0.9rem;
}

/* Figure / technical panel */
.figure {
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, var(--navy-850), var(--navy-900));
  padding: 1.1rem;
}
.figure-head, .figure-foot {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blueprint);
}
.figure-head { padding-bottom: 0.9rem; border-bottom: 1px dashed var(--line-strong); }
.figure-foot { padding-top: 0.9rem; border-top: 1px dashed var(--line-strong); flex-wrap: wrap; }

.figure-cell {
  border: 1px solid var(--line);
  background: rgba(11, 27, 43, 0.6);
  padding: 0.85rem 0.95rem;
}
.figure-cell .k {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  color: var(--blueprint);
  text-transform: uppercase;
}
.figure-cell .v {
  display: block;
  font-family: var(--font-display);
  font-variation-settings: 'wdth' 92, 'wght' 700;
  text-transform: uppercase;
  color: var(--ink);
  font-size: 0.98rem;
  margin-top: 0.3rem;
  letter-spacing: 0.01em;
}

/* Trust strip */
.trust {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.trust > div { background: var(--navy-900); padding: 1.05rem 1.15rem; }
.trust .t-big {
  font-family: var(--font-display);
  font-variation-settings: 'wdth' 92, 'wght' 800;
  color: var(--ink);
  font-size: 1.25rem;
  text-transform: uppercase;
  line-height: 1.1;
}
.trust .t-small {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blueprint);
  margin-top: 0.35rem;
}
@media (min-width: 860px) { .trust { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

/* Placeholder slot (proof assets to be swapped in) */
.slot {
  border: 1px dashed rgba(238, 85, 34, 0.5);
  background: repeating-linear-gradient(
    45deg,
    rgba(238, 85, 34, 0.05) 0 10px,
    transparent 10px 20px
  );
  border-radius: 3px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  text-align: center;
  padding: 1.5rem 1.1rem;
  min-height: 190px;
}
.slot .slot-tag {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}
.slot .slot-note { font-size: var(--text-sm); color: var(--ink-muted); max-width: 32ch; }

/* Comparison table */
.compare {
  border: 1px solid var(--line);
  overflow: hidden;
  border-radius: 3px;
}
.compare table { width: 100%; border-collapse: collapse; }
.compare th, .compare td {
  padding: 0.95rem 1.05rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: var(--text-sm);
  vertical-align: top;
}
.compare thead th {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-variation-settings: 'wdth' 92, 'wght' 700;
  color: var(--ink);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  background: var(--navy-850);
}
.compare tbody th {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blueprint);
  font-weight: 400;
  white-space: nowrap;
}
.compare .col-us { background: rgba(238, 85, 34, 0.07); color: var(--ink); }
.compare thead .col-us { background: rgba(238, 85, 34, 0.16); }
.compare tbody tr:last-child th, .compare tbody tr:last-child td { border-bottom: 0; }
.compare .col-us strong { color: #fff; }

.compare-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.compare table { min-width: 640px; }

/* Timeline */
.step {
  display: grid;
  gap: 0.35rem 1.4rem;
  padding-block: 1.35rem;
  border-top: 1px solid var(--line);
  grid-template-columns: 1fr;
}
@media (min-width: 780px) {
  .step { grid-template-columns: 110px 220px 1fr; align-items: start; }
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step .when {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--orange);
  text-transform: uppercase;
  padding-top: 0.2rem;
}
.step .what {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-variation-settings: 'wdth' 92, 'wght' 700;
  color: var(--ink);
  font-size: 1.05rem;
}

/* Checklist */
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.7rem; }
.checklist li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 0.75rem;
  font-size: var(--text-sm);
  align-items: start;
}
.checklist li::before {
  content: '';
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--orange);
  border-bottom: 2px solid var(--orange);
  transform: rotate(-45deg);
  margin-top: 6px;
}

/* FAQ */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 1.25rem 2.5rem 1.25rem 0;
  position: relative;
  font-family: var(--font-display);
  text-transform: uppercase;
  font-variation-settings: 'wdth' 92, 'wght' 700;
  color: var(--ink);
  font-size: 1.02rem;
  letter-spacing: 0.01em;
  line-height: 1.25;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '';
  position: absolute;
  right: 4px;
  top: 1.45rem;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--orange);
  border-bottom: 2px solid var(--orange);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: rotate(-135deg); }
.faq-item summary:hover { color: var(--orange); }
.faq-item .faq-body { padding: 0 0 1.4rem; max-width: 68ch; font-size: var(--text-sm); }

/* Form */
.field { display: block; margin-bottom: 1rem; }
.field span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blueprint);
  margin-bottom: 0.45rem;
}
.field input {
  width: 100%;
  background: var(--navy-950);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  padding: 0.85rem 0.95rem;
  min-height: 48px;
}
.field input::placeholder { color: rgba(143, 169, 196, 0.5); }
.field input:focus { outline: none; border-color: var(--orange); }

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover, .card--hover:hover { transform: none; }
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 21, 34, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  justify-content: space-between;
  padding-block: 0.85rem;
}
.nav-links { display: none; gap: 1.6rem; }
@media (min-width: 1024px) { .nav-links { display: flex; } }
.nav-links a {
  font-family: var(--font-mono);
  white-space: nowrap;
  font-size: 0.72rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-muted);
  text-decoration: none;
  padding-block: 0.4rem;
}
.nav-links a:hover { color: var(--orange); }

.phone-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.phone-link:hover { color: var(--orange); }
.phone-wrap { display: none; text-align: right; }
@media (min-width: 700px) { .phone-wrap { display: block; } }
.phone-wrap .mono { white-space: nowrap; }
.brand-sub { display: none; white-space: nowrap; }
@media (min-width: 560px) { .brand-sub { display: block; } }
.nav-links { flex: 1; justify-content: center; }

.header-cta { display: none; padding: 0.8rem 1.15rem; }
@media (min-width: 700px) { .header-cta { display: inline-flex; } }

/* Sticky mobile CTA */
.mobile-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line-strong);
  border-top: 1px solid var(--line-strong);
  padding: 0;
}
@media (min-width: 700px) { .mobile-bar { display: none; } }
.mobile-bar a {
  padding: 0.95rem 0.5rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mobile-bar .m-call { background: var(--navy-850); color: var(--ink); }
.mobile-bar .m-cta { background: var(--orange); color: #fff; font-weight: 700; }
body { padding-bottom: 0; }
@media (max-width: 699px) { body { padding-bottom: 54px; } }

/* Utility grids */
.grid { display: grid; gap: 1.25rem; }
.g-2 { grid-template-columns: 1fr; }
.g-3 { grid-template-columns: 1fr; }
.g-4 { grid-template-columns: 1fr; }
@media (min-width: 700px) { .g-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 760px) { .g-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1000px) {
  .g-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .g-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.split { display: grid; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
@media (min-width: 960px) { .split { grid-template-columns: 1.05fr 0.95fr; } }
@media (min-width: 960px) { .split--narrow { grid-template-columns: 0.8fr 1.2fr; } }

.stack { display: grid; gap: 1.1rem; }

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--line-strong);
  color: var(--blueprint);
  padding: 0.3rem 0.55rem;
  border-radius: 2px;
}
.tag--ok { border-color: rgba(78, 195, 138, 0.5); color: var(--green); }
.tag--hot { border-color: rgba(238, 85, 34, 0.55); color: var(--orange); }

.guarantee-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.75rem;
  border: 1px solid rgba(78, 195, 138, 0.35);
  background: rgba(78, 195, 138, 0.06);
  padding: 0.9rem 1.15rem;
  border-radius: 3px;
}
.guarantee-bar span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
}

.footer {
  border-top: 1px solid var(--line);
  padding-block: 2.75rem;
  background: var(--navy-950);
}

.pull {
  border-left: 2px solid var(--orange);
  padding-left: 1.25rem;
  font-size: var(--text-lg);
  color: var(--ink);
}

.price-figure {
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, var(--navy-850), var(--navy-950));
  padding: clamp(1.5rem, 3vw, 2.25rem);
}
.price-num {
  font-family: var(--font-display);
  font-variation-settings: 'wdth' 90, 'wght' 800;
  font-size: clamp(3rem, 7vw, 4.6rem);
  color: var(--ink);
  line-height: 0.95;
  text-transform: uppercase;
}
.price-num em { font-style: normal; color: var(--orange); }