/* ==========================================================================
   Sagrada Engineering Group — design system
   Palette: matte-black void + signal red. Type: Orbitron (display),
   Inter (body), JetBrains Mono (utility/data/labels).
   ========================================================================== */

:root {
  --bg-void: #0a0a0c;
  --bg-panel: #111114;
  --bg-panel-raised: #16161a;
  --line-grid: #232328;
  --line-grid-strong: #34343c;
  --red-signal: #ff1f3d;
  --red-signal-dim: #b3162c;
  --red-ember: #3a0e15;
  --red-glow: rgba(255, 31, 61, 0.35);
  --text-primary: #ececee;
  --text-muted: #8a8a93;
  --text-faint: #545459;
  --font-display: "Orbitron", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --container-w: 1200px;
  --nav-h: 104px;
  --ticker-h: 34px;
}

/* ---- Reset ------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}
html, body { overflow-x: hidden; }
body, h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }

body {
  background: var(--bg-void);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image:
    linear-gradient(var(--line-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-grid) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center top;
}

:focus-visible {
  outline: 2px solid var(--red-signal);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ---- Typography ---------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.15;
  color: #fff;
}
h1 { font-size: clamp(2.4rem, 5vw, 4.4rem); letter-spacing: 0.02em; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
h4 { font-size: 1rem; letter-spacing: 0.08em; }

p { color: var(--text-muted); max-width: 62ch; }
p.lede { font-size: 1.15rem; color: var(--text-primary); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--red-signal);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--red-signal);
  box-shadow: 0 0 6px var(--red-glow);
}

.mono { font-family: var(--font-mono); }

/* ---- HUD status ticker --------------------------------------------------- */
.hud-ticker {
  height: var(--ticker-h);
  background: #000;
  border-bottom: 1px solid var(--line-grid);
  overflow: hidden;
  display: flex;
  align-items: center;
}
.hud-ticker__track {
  display: flex;
  gap: 48px;
  white-space: nowrap;
  animation: ticker-scroll 34s linear infinite;
  padding-left: 100%;
}
.hud-ticker__track span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--text-faint);
  text-transform: uppercase;
}
.hud-ticker__track span b { color: var(--red-signal); font-weight: 600; }
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---- Header / nav --------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 12, 0.97);
  border-bottom: 1px solid var(--line-grid);
}
.nav {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
}
.brand__logo {
  height: 64px;
  width: auto;
  display: block;
}
.brand__logo--footer {
  height: 40px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav__links > li { position: relative; }
.nav__links a {
  display: inline-flex;
  align-items: center;
  height: var(--nav-h);
  padding: 0 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.nav__links a:hover,
.nav__links a[aria-current="page"] {
  color: var(--text-primary);
  border-color: var(--red-signal);
}
.nav__links a[aria-current="page"] { color: #fff; }

.nav__dropdown-trigger { display: inline-flex; align-items: center; gap: 6px; }
.nav__dropdown-trigger::after {
  content: "";
  width: 6px;
  height: 6px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg);
  margin-top: -4px;
}
.nav__dropdown {
  position: absolute;
  top: calc(var(--nav-h) - 6px);
  left: 0;
  min-width: 320px;
  background: var(--bg-panel);
  border: 1px solid var(--line-grid);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
}
.nav__item--dropdown:hover .nav__dropdown,
.nav__item--dropdown:focus-within .nav__dropdown,
.nav__item--dropdown.is-open .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav__dropdown a {
  height: auto;
  padding: 10px 12px;
  display: flex;
  gap: 10px;
  border-bottom: 1px solid var(--line-grid);
}
.nav__dropdown li:last-child a { border-bottom: none; }
.nav__dropdown a:hover { background: var(--bg-panel-raised); border-color: var(--line-grid); }
.nav__dropdown .num { color: var(--red-signal); font-weight: 600; }

.nav__cta {
  height: auto !important;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 10px 18px !important;
  margin-left: 8px;
  border: 1px solid var(--red-signal);
  border-bottom: 1px solid var(--red-signal) !important;
  color: #fff;
  transition: background 0.15s ease, box-shadow 0.15s ease;
}
.nav__cta:hover { background: var(--red-signal); box-shadow: 0 0 22px var(--red-glow); }

.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.nav__toggle span { width: 22px; height: 2px; background: #fff; }

@media (max-width: 900px) {
  .nav__toggle { display: flex; }
  .nav__links {
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    top: calc(var(--nav-h) + var(--ticker-h));
    background: var(--bg-void);
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    gap: 0;
    transform: translateX(100%);
    transition: transform 0.2s ease;
    overflow-y: auto;
  }
  .nav__links.is-open { transform: translateX(0); }
  .nav__links a { height: auto; padding: 16px 8px; border-bottom: 1px solid var(--line-grid); }
  .nav__dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
    border: none;
    background: var(--bg-panel-raised);
    margin-bottom: 8px;
  }
  .nav__item--dropdown.is-open .nav__dropdown { display: block; }
  .nav__cta { margin-top: 12px; text-align: center; }
}

/* ---- Buttons -------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 28px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--line-grid-strong);
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease, color 0.15s ease;
}
.btn--primary { background: var(--red-signal); border-color: var(--red-signal); color: #0a0a0c; font-weight: 600; }
.btn--primary:hover { box-shadow: 0 0 28px var(--red-glow); background: #ff3a54; }
.btn--ghost { color: var(--text-primary); }
.btn--ghost:hover { border-color: var(--red-signal); color: #fff; }
.btn--arrow::after { content: "→"; }

/* ---- Corner-bracket panel --------------------------------------------- */
.panel {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--line-grid);
  padding: 32px;
}
.panel::before, .panel::after,
.panel__br-tl, .panel__br-br { content: ""; }
.panel {
  --bracket: 14px;
}
.panel::before {
  position: absolute; top: -1px; left: -1px;
  width: var(--bracket); height: var(--bracket);
  border-top: 2px solid var(--red-signal);
  border-left: 2px solid var(--red-signal);
}
.panel::after {
  position: absolute; bottom: -1px; right: -1px;
  width: var(--bracket); height: var(--bracket);
  border-bottom: 2px solid var(--red-signal);
  border-right: 2px solid var(--red-signal);
}

/* ---- Circuit divider ---------------------------------------------------- */
.circuit-divider {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
}
.circuit-divider .line { flex: 1; height: 1px; background: var(--line-grid); position: relative; }
.circuit-divider .node {
  width: 6px; height: 6px;
  border: 1px solid var(--red-signal);
  transform: rotate(45deg);
  flex-shrink: 0;
}

/* ---- Sections ------------------------------------------------------------ */
section { padding: 96px 0; }
.section--tight { padding: 64px 0; }
.section--panel { background: linear-gradient(180deg, transparent, rgba(255,31,61,0.03), transparent); border-top: 1px solid var(--line-grid); border-bottom: 1px solid var(--line-grid); }

.grid {
  display: grid;
  gap: 24px;
}
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) {
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
}

/* ---- Reveal on scroll ------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---- Hero (generic page header for interior pages) ---------------------- */
.page-hero {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--line-grid);
  position: relative;
  overflow: hidden;
}
.page-hero__code {
  font-family: var(--font-mono);
  color: var(--text-faint);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  margin-bottom: 18px;
}
.page-hero__code b { color: var(--red-signal); }

/* ---- Stat / spec strip --------------------------------------------------- */
.spec-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line-grid);
}
.spec-strip__item {
  padding: 22px 20px;
  border-right: 1px solid var(--line-grid);
}
.spec-strip__item:last-child { border-right: none; }
.spec-strip__value {
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: #fff;
}
.spec-strip__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-top: 4px;
}
@media (max-width: 860px) {
  .spec-strip { grid-template-columns: repeat(2, 1fr); }
  .spec-strip__item:nth-child(2) { border-right: none; }
}

/* ---- Cards --------------------------------------------------------------- */
.card {
  background: var(--bg-panel);
  border: 1px solid var(--line-grid);
  padding: 28px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover { border-color: var(--red-signal-dim); transform: translateY(-3px); }
.card .num {
  font-family: var(--font-mono);
  color: var(--red-signal);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}
.card h3 { margin-top: 10px; margin-bottom: 12px; }
.card p, .card ul li { color: #fff; }

/* ---- Tool grid (logo tiles) -------------------------------------------- */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 20px;
}
.tool-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 28px 16px;
  background: var(--bg-panel);
  border: 1px solid var(--line-grid);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.tool-tile:hover { border-color: var(--red-signal-dim); transform: translateY(-3px); }
.tool-tile__chip {
  width: 72px;
  height: 72px;
  flex-shrink: 0;
  background: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
}
.tool-tile__chip img { width: 100%; height: 100%; object-fit: contain; }
.tool-tile__label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
}
.card ul { margin-top: 14px; display: grid; gap: 8px; }
.card ul li {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
}
.card ul li::before {
  content: "";
  position: absolute; left: 0; top: 8px;
  width: 6px; height: 1px;
  background: var(--red-signal);
}

/* ---- Photo grid ------------------------------------------------------ */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.photo-card {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--line-grid);
  overflow: hidden;
}
.photo-card::before, .photo-card::after {
  content: "";
  position: absolute;
  width: 16px; height: 16px;
  z-index: 2;
  pointer-events: none;
}
.photo-card::before { top: 10px; left: 10px; border-top: 2px solid var(--red-signal); border-left: 2px solid var(--red-signal); }
.photo-card::after { top: 10px; right: 10px; border-top: 2px solid var(--red-signal); border-right: 2px solid var(--red-signal); }
.photo-card__frame {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.photo-card__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(20%) contrast(1.05) brightness(0.95);
  transition: filter 0.35s ease, transform 0.35s ease;
}
.photo-card:hover .photo-card__frame img {
  filter: grayscale(0%) contrast(1.1) brightness(1);
  transform: scale(1.045);
}
.photo-card__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,10,12,0) 55%, rgba(10,10,12,0.85) 100%);
}
.photo-card__caption {
  padding: 14px 16px;
  border-top: 1px solid var(--line-grid);
}
.photo-card__caption .label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
}
.photo-card__caption .credit {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  color: var(--text-faint);
}
@media (max-width: 860px) {
  .photo-grid { grid-template-columns: 1fr; }
}

/* Portrait variant: natural color always, square crop, no hover desaturation */
.photo-card--portrait .photo-card__frame { aspect-ratio: 1 / 1; }
.photo-card--portrait .photo-card__frame img { filter: none; }
.photo-card--portrait:hover .photo-card__frame img { filter: none; transform: none; }
.photo-card--portrait .photo-card__frame::after { display: none; }

/* Natural variant: real-person photo, natural color, default (non-square) crop */
.photo-card--natural .photo-card__frame img { filter: none; }
.photo-card--natural:hover .photo-card__frame img { filter: none; transform: none; }
.photo-card--natural .photo-card__frame::after { display: none; }

/* ---- Forms --------------------------------------------------------------- */
.field { display: grid; gap: 8px; margin-bottom: 20px; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.field input, .field textarea, .field select {
  background: var(--bg-panel);
  border: 1px solid var(--line-grid-strong);
  padding: 14px 16px;
  color: var(--text-primary);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--red-signal);
  box-shadow: 0 0 0 3px rgba(255,31,61,0.15);
  outline: none;
}
.field textarea { resize: vertical; min-height: 140px; }
.field--error input, .field--error textarea { border-color: var(--red-signal); }
.field__error { font-family: var(--font-mono); font-size: 0.72rem; color: var(--red-signal); display: none; }
.field--error .field__error { display: block; }
.form-status {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 14px 16px;
  border: 1px solid var(--line-grid);
  margin-top: 18px;
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.is-success { border-color: var(--red-signal); color: var(--text-primary); }

/* ---- Footer --------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line-grid);
  padding: 64px 0 32px;
  background: #000;
}
.site-footer .grid { grid-template-columns: 2fr 1fr 1fr; }
.site-footer h4 { color: var(--text-muted); margin-bottom: 16px; }
.site-footer ul { display: grid; gap: 10px; }
.site-footer a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}
.site-footer a:hover { color: var(--red-signal); }
.footer-bottom {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line-grid);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
}
@media (max-width: 860px) {
  .site-footer .grid { grid-template-columns: 1fr 1fr; }
}

/* ---- Utility ---------------------------------------------------------- */
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; } .mt-48 { margin-top: 48px; } .mt-64 { margin-top: 64px; }
.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }
.flex { display: flex; }
.flex--gap { gap: 16px; }
.flex--wrap { flex-wrap: wrap; }
.flex--center { align-items: center; }
.flex--between { justify-content: space-between; }