/* ==========================================================================
   SPACEREP OÜ — design tokens
   Concept: engineering datasheet / schematic. Navy + steel + copper,
   hairline rules, pin-header tick marks as the signature motif.
   ========================================================================== */

:root{
  --ink:        #0f151c;   /* deep navy-graphite, dark panels */
  --ink-2:      #182330;   /* slightly lighter navy for cards on dark */
  --paper:      #eef1f3;   /* cool off-white, main background */
  --paper-2:    #e2e7ea;   /* subtle panel tint on light */
  --steel:      #35495c;   /* primary text / headings on light */
  --steel-soft: #5b6d7d;   /* secondary text */
  --copper:     #b5652d;   /* accent — copper lead / oxidised trace */
  --copper-2:   #d98c53;   /* lighter copper for dark backgrounds */
  --line:       #c7cfd4;   /* hairline rule on light */
  --line-dark:  #2c3946;   /* hairline rule on dark */
  --white:      #ffffff;

  --font-display: "Space Grotesk", "Arial Narrow", sans-serif;
  --font-body:    "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono:    "IBM Plex Mono", "Courier New", monospace;

  --max: 1120px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--paper);
  color: var(--steel);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; }
h1, h2, h3{
  font-family: var(--font-display);
  color: var(--steel);
  line-height: 1.15;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}
p{ margin: 0 0 1em; }
.wrap{ max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* -------------------------------------------------------------------- */
/* Signature motif: pin-header tick — a small copper tab, echoing a
   connector pin. Used as eyebrow marker, bullet, and divider throughout. */
/* -------------------------------------------------------------------- */
.pin{
  display: inline-block;
  width: 14px; height: 3px;
  background: var(--copper);
  margin-right: 10px;
  vertical-align: middle;
  flex: none;
}
.eyebrow{
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: .9em;
}
.pin-row{
  display: flex;
  gap: 6px;
  margin: 1.6em 0;
}
.pin-row span{
  width: 14px; height: 3px;
  background: var(--line);
}

/* -------------------------------------------------------------------- */
/* Header / nav                                                          */
/* -------------------------------------------------------------------- */
.site-header{
  position: sticky; top: 0; z-index: 50;
  background: var(--ink);
  border-bottom: 1px solid var(--line-dark);
}
.site-header .wrap{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand{
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand img{ height: 26px; width: auto; filter: brightness(0) invert(1); }
.brand-text{
  font-family: var(--font-mono);
  font-size: 12px;
  color: #9fb0bf;
  letter-spacing: .08em;
  border-left: 1px solid var(--line-dark);
  padding-left: 12px;
}
nav.main-nav ul{
  list-style: none;
  display: flex;
  gap: 2px;
  margin: 0; padding: 0;
}
nav.main-nav a{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: #cfd9e0;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 2px;
  transition: color .15s ease, background .15s ease;
}
nav.main-nav a:hover{ color: var(--white); background: var(--ink-2); }
nav.main-nav a.active{ color: var(--copper-2); }
.nav-toggle{ display: none; }

@media (max-width: 780px){
  nav.main-nav ul{
    position: absolute; top: 76px; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--ink);
    border-bottom: 1px solid var(--line-dark);
    max-height: 0; overflow: hidden;
  }
  nav.main-nav a{ padding: 14px 24px; border-bottom: 1px solid var(--line-dark); }
  .nav-toggle{
    display: block;
    background: none; border: 1px solid var(--line-dark);
    color: #cfd9e0; font-family: var(--font-mono); font-size: 12px;
    padding: 8px 12px; letter-spacing: .08em; cursor: pointer;
  }
  #nav-check:checked ~ nav.main-nav ul{ max-height: 400px; }
}

/* -------------------------------------------------------------------- */
/* Hero                                                                   */
/* -------------------------------------------------------------------- */
.hero{
  position: relative;
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
  border-bottom: 1px solid var(--line-dark);
}
.hero .wrap{
  position: relative;
  z-index: 2;
  padding-top: 96px;
  padding-bottom: 80px;
}
.hero-trace{
  position: absolute; inset: 0;
  z-index: 1;
  opacity: .55;
}
.hero h1{
  color: var(--white);
  font-size: clamp(2.1rem, 4.4vw, 3.4rem);
  max-width: 15ch;
}
.hero .tagline{
  font-size: 1.15rem;
  color: #b9c6d0;
  max-width: 46ch;
  margin-bottom: 1.6em;
}
.spec-strip{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-dark);
  margin-top: 2.4em;
}
.spec-strip div{
  padding: 16px 20px 0 0;
  border-left: 1px solid var(--line-dark);
  font-family: var(--font-mono);
}
.spec-strip div:first-child{ border-left: none; padding-left: 0; }
.spec-strip .val{ color: var(--copper-2); font-size: 1.1rem; display: block; margin-bottom: 4px; }
.spec-strip .lbl{ font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: #8a9aa8; }

@media (max-width: 700px){
  .spec-strip{ grid-template-columns: 1fr 1fr; row-gap: 20px; }
  .spec-strip div{ border-left: none; padding-left: 0; }
}

.hero.compact .wrap{ padding-top: 56px; padding-bottom: 56px; }
.hero.compact h1{ font-size: clamp(1.8rem, 3.4vw, 2.6rem); max-width: none; }

/* -------------------------------------------------------------------- */
/* Buttons                                                                */
/* -------------------------------------------------------------------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 13px 22px;
  border: 1px solid currentColor;
  border-radius: 2px;
  transition: background .15s ease, color .15s ease;
}
.btn-copper{ color: var(--copper-2); }
.btn-copper:hover{ background: var(--copper-2); color: var(--ink); }
.btn-steel{ color: var(--steel); }
.btn-steel:hover{ background: var(--steel); color: var(--white); }

/* -------------------------------------------------------------------- */
/* Section scaffolding                                                    */
/* -------------------------------------------------------------------- */
section{ padding: 76px 0; }
section.tight{ padding: 56px 0; }
.section-alt{ background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-dark{ background: var(--ink); color: #cfd9e0; }
.section-dark h2{ color: var(--white); }

.grid-2{ display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: start; }
.grid-3{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
@media (max-width: 860px){
  .grid-2{ grid-template-columns: 1fr; }
  .grid-3{ grid-template-columns: 1fr; }
}

.card{
  background: var(--white);
  border: 1px solid var(--line);
  padding: 28px 26px;
}
.card .eyebrow{ margin-bottom: .6em; }
.card h3{ font-size: 1.15rem; }
.card img.card-photo{ margin: -28px -26px 20px; width: calc(100% + 52px); height: 170px; object-fit: cover; border-bottom: 1px solid var(--line); }

.panel{
  background: var(--white);
  border: 1px solid var(--line);
  padding: 32px;
}

/* Partner logos strip */
.partners{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.partners > div{
  background: var(--white);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
}
.partners img{ max-height: 34px; width: auto; filter: grayscale(1); opacity: .85; }
.partners p{ font-size: .92rem; color: var(--steel-soft); margin: 0; }
@media (max-width: 780px){ .partners{ grid-template-columns: 1fr; } }

/* Download list */
.dl-group{ margin-bottom: 36px; }
.dl-group h3{
  display: flex; align-items: center;
  font-size: 1rem;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 0;
}
.dl-list{ list-style: none; margin: 0; padding: 0; }
.dl-list li{
  border-bottom: 1px solid var(--line);
}
.dl-list a{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 2px;
  text-decoration: none;
  color: var(--steel);
  font-size: .96rem;
}
.dl-list a:hover{ color: var(--copper); }
.dl-list .tag{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel-soft);
  letter-spacing: .06em;
  white-space: nowrap;
}
.dl-note{
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--steel-soft);
  background: var(--paper-2);
  border: 1px dashed var(--line);
  padding: 14px 16px;
  margin-top: 8px;
}

/* Terms page */
.legal h3{
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--copper);
  margin-top: 2em;
}
.legal p, .legal li{ color: var(--steel-soft); font-size: .96rem; }
.legal-toc{
  position: sticky; top: 96px;
  border-left: 2px solid var(--line);
  padding-left: 20px;
}
.legal-toc a{
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--steel-soft);
  text-decoration: none;
  padding: 5px 0;
}
.legal-toc a:hover{ color: var(--copper); }
@media (max-width: 860px){
  section .wrap[style*="grid-template-columns: 240px"]{ grid-template-columns: 1fr !important; }
  .legal-toc{ position: static; border-left: none; border-top: 1px solid var(--line); padding-left: 0; padding-top: 16px; display: flex; flex-wrap: wrap; gap: 4px 18px; }
}

/* Contact form */
.form-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .full{ grid-column: 1 / -1; }
@media (max-width: 700px){ .form-grid{ grid-template-columns: 1fr; } }
label{
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--steel-soft);
  margin-bottom: 6px;
}
input, textarea{
  width: 100%;
  font-family: var(--font-body);
  font-size: .96rem;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--steel);
}
input:focus, textarea:focus{
  outline: 2px solid var(--copper);
  outline-offset: 1px;
}
textarea{ resize: vertical; min-height: 120px; }
button.submit{
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  text-transform: uppercase;
  background: var(--steel);
  color: var(--white);
  border: none;
  padding: 14px 26px;
  cursor: pointer;
}
button.submit:hover{ background: var(--copper); }
.form-success{
  display: none;
  font-family: var(--font-mono);
  font-size: .95rem;
  color: var(--copper);
  border: 1px solid var(--copper);
  padding: 14px 16px;
}

/* -------------------------------------------------------------------- */
/* Footer                                                                 */
/* -------------------------------------------------------------------- */
.site-footer{
  background: var(--ink);
  color: #9fb0bf;
  border-top: 1px solid var(--line-dark);
}
.site-footer .wrap{
  padding: 48px 24px 28px;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 32px;
}
.site-footer h4{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--copper-2);
  margin: 0 0 14px;
}
.site-footer p, .site-footer a{ font-size: .9rem; color: #9fb0bf; text-decoration: none; }
.site-footer a:hover{ color: var(--white); }
.footer-legal{
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: #6d8090;
  border-top: 1px solid var(--line-dark);
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
@media (max-width: 700px){
  .site-footer .wrap{ grid-template-columns: 1fr; }
}