/* RoboStruct Technologies — chevron sprint stylesheet */
:root {
  --ink:         #1A1714;
  --ink-2:       #26221E;
  --ink-3:       #3A3530;
  --amber:       #E89A1A;
  --amber-deep:  #C97A10;
  --amber-glow:  #FFE2C3;
  --steel:       #C9C5BF;
  --paper:       #EDEAE4;
  --paper-2:     #E2DDD5;
  --text:        #1A1714;
  --muted:       #5C574F;
  --on-dark:     #F7F3EC;
  --on-dark-dim: #D4CFC5;
  --line:        #D2CDC4;
  --line-dark:   #3F3A34;
  --maxw:        1180px;
  --ease:        cubic-bezier(.22,.61,.36,1);
  --shadow:      0 18px 40px -22px rgba(26,23,20,.32);
  --chev:        polygon(0 0, calc(100% - 22px) 0, 100% 50%, calc(100% - 22px) 100%, 0 100%, 16px 50%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: "Schibsted Grotesk", system-ui, -apple-system, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, .brand-name, .kicker, .eyebrow, .sprint-num, .lane-tag, .fact-k, .btn, .nav, .quote-attr, .contact-aside-kicker {
  font-family: "Oswald", system-ui, sans-serif;
  letter-spacing: 0.02em;
  line-height: 1.12;
  margin: 0;
  text-transform: uppercase;
}

h1, h2, h3 { text-transform: uppercase; }
h3 { font-size: 1.35rem; font-weight: 600; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; }
ol, ul { margin: 0; padding: 0; list-style: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--ink); color: var(--on-dark); padding: 10px 16px; font-weight: 600;
}
.skip-link:focus { left: 0; }

.kicker, .eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .22em;
  font-weight: 500;
  color: var(--amber-deep);
  margin: 0 0 16px;
}
.kicker-on-dark { color: var(--amber); }

.lead {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 58ch;
  margin: 14px 0 0;
}

/* Buttons — chevron cut */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 34px 14px 26px;
  font-weight: 600; font-size: 14px; letter-spacing: .12em;
  border: 0; cursor: pointer;
  clip-path: var(--chev);
  transition: transform .25s var(--ease), background .25s var(--ease), color .25s var(--ease), box-shadow .25s var(--ease);
}
.btn-primary {
  background: var(--amber);
  color: var(--ink);
  box-shadow: 0 10px 24px -12px rgba(232,154,26,.7);
}
.btn-ghost {
  background: rgba(247,243,236,.12);
  color: var(--on-dark);
  box-shadow: none;
}

/* Header */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(26,23,20,.92);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom-color: var(--line-dark);
  box-shadow: 0 6px 24px -18px rgba(0,0,0,.5);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand img { border-radius: 8px; width: 40px; height: 40px; object-fit: cover; background: #d0d0d0; }
.brand-name { font-size: 20px; font-weight: 600; color: var(--on-dark); letter-spacing: .08em; }

.nav { display: flex; align-items: center; gap: 26px; }
.nav a {
  font-size: 13px; color: var(--on-dark-dim); font-weight: 500; letter-spacing: .14em;
  transition: color .2s var(--ease);
}
.nav .nav-cta {
  color: var(--ink);
  background: var(--amber);
  padding: 9px 20px 9px 16px;
  clip-path: var(--chev);
}

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--on-dark); border-radius: 2px; transition: transform .3s var(--ease), opacity .3s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero {
  position: relative;
  background: var(--ink);
  color: var(--on-dark);
  padding: 128px 0 72px;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  background: linear-gradient(180deg, var(--amber) 0%, transparent 100%);
}
.hero-inner {
  position: relative; z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 40px;
  align-items: center;
  width: 100%;
}
.hero h1 {
  font-size: clamp(2.4rem, 6.2vw, 4.4rem);
  font-weight: 700;
  color: var(--on-dark);
  max-width: 12ch;
  letter-spacing: 0.01em;
  line-height: 1.02;
}
.hero-sub {
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  color: var(--on-dark-dim);
  margin: 22px 0 0;
  max-width: 52ch;
  font-family: "Schibsted Grotesk", sans-serif;
  text-transform: none;
  letter-spacing: 0;
  line-height: 1.65;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }

/* Sliding edge chevrons along the right of the hero */
.hero-edge {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}
.edge-chev {
  position: absolute;
  right: -8%;
  height: 88px;
  width: 58%;
  clip-path: var(--chev);
  background: linear-gradient(90deg, transparent 0%, rgba(232,154,26,.08) 40%, rgba(232,154,26,.28) 100%);
  animation: chevSlide 9s linear infinite;
}
.edge-chev.e1 { top: 8%;  animation-duration: 8.2s; width: 62%; }
.edge-chev.e2 { top: 22%; animation-duration: 10s; animation-delay: -2s; opacity: .7; }
.edge-chev.e3 { top: 38%; animation-duration: 7.4s; animation-delay: -4.2s; width: 70%; }
.edge-chev.e4 { top: 54%; animation-duration: 11s; animation-delay: -1s; }
.edge-chev.e5 { top: 70%; animation-duration: 8.8s; animation-delay: -5s; width: 50%; }
.edge-chev.e6 { top: 84%; animation-duration: 9.6s; animation-delay: -3.4s; }

@keyframes chevSlide {
  0%   { transform: translateX(-18%); opacity: 0; }
  12%  { opacity: 1; }
  78%  { opacity: .85; }
  100% { transform: translateX(22%); opacity: 0; }
}

.hero-chevs { position: relative; z-index: 2; }
.chev-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 280px;
  justify-content: center;
}
.slide-chev {
  display: block;
  height: 42px;
  clip-path: var(--chev);
  background: linear-gradient(90deg, rgba(232,154,26,.15), var(--amber) 70%, var(--amber-glow));
  animation: chevPulse 5.6s var(--ease) infinite;
  transform-origin: left center;
}
.slide-chev.s1 { width: 72%; animation-delay: 0s; }
.slide-chev.s2 { width: 88%; animation-delay: .35s; height: 52px; }
.slide-chev.s3 { width: 100%; animation-delay: .7s; height: 64px; background: linear-gradient(90deg, rgba(26,23,20,.2), var(--amber) 55%, #fff3dd); }
.slide-chev.s4 { width: 80%; animation-delay: 1.05s; height: 52px; }
.slide-chev.s5 { width: 62%; animation-delay: 1.4s; }

@keyframes chevPulse {
  0%, 100% { transform: translateX(0); filter: brightness(1); }
  50% { transform: translateX(18px); filter: brightness(1.15); }
}

.chev-caption {
  margin: 18px 0 0;
  font-family: "Oswald", sans-serif;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--amber);
}

/* Sprint timeline */
.sprint {
  background: var(--ink-2);
  color: var(--on-dark);
  padding: 88px 0 100px;
  position: relative;
  overflow: hidden;
}
.sprint::after {
  content: "";
  position: absolute;
  right: -40px;
  top: 20%;
  width: 180px;
  height: 180px;
  clip-path: var(--chev);
  background: rgba(232,154,26,.08);
  pointer-events: none;
}
.sprint-head h2,
.practice h2,
.about h2,
.faq h2,
.contact-copy h2 {
  font-size: clamp(1.8rem, 3.8vw, 2.7rem);
  font-weight: 600;
  max-width: 18ch;
}
.sprint-head h2 { color: var(--on-dark); }
.sprint-head .lead { color: var(--on-dark-dim); }

.sprint-rail {
  position: relative;
  height: 28px;
  margin: 36px 0 8px;
}
.rail-line {
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 2px;
  background: linear-gradient(90deg, var(--amber-deep), var(--amber) 40%, var(--amber-glow));
  transform: translateY(-50%);
}
.rail-runner {
  position: absolute;
  top: 50%;
  width: 28px;
  height: 18px;
  margin-top: -9px;
  clip-path: polygon(0 0, 70% 0, 100% 50%, 70% 100%, 0 100%, 22% 50%);
  background: var(--amber);
  animation: runner 6.5s linear infinite;
  box-shadow: 0 0 18px rgba(232,154,26,.7);
}
@keyframes runner {
  0% { left: -4%; }
  100% { left: 100%; }
}

.sprint-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  margin-top: 12px;
  counter-reset: none;
}
.sprint-cell {
  position: relative;
  background: var(--ink-3);
  color: var(--on-dark);
  padding: 28px 44px 28px 30px;
  margin-right: -18px;
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 50%, calc(100% - 26px) 100%, 0 100%, 18px 50%);
  min-height: 270px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background .25s var(--ease), transform .25s var(--ease);
  z-index: 1;
}
.sprint-cell:nth-child(1) { z-index: 5; background: #2E2A26; }
.sprint-cell:nth-child(2) { z-index: 4; background: #342F2A; }
.sprint-cell:nth-child(3) { z-index: 3; background: #3B3530; }
.sprint-cell:nth-child(4) { z-index: 2; background: #433C36; }
.sprint-cell:nth-child(5) { z-index: 1; margin-right: 0; background: #4A423B; }

.sprint-num {
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--amber);
}
.sprint-cell h3 { color: var(--on-dark); font-size: 1.15rem; }
.sprint-cell p {
  font-size: .92rem;
  color: var(--on-dark-dim);
  margin: 0;
}

/* Practice lanes */
.practice {
  background: var(--paper);
  padding: 88px 0;
}
.section-head { margin-bottom: 36px; }
.section-head h2 { color: var(--ink); }

.lanes { display: flex; flex-direction: column; gap: 14px; }
.lane {
  display: grid;
  grid-template-columns: 56px 1fr;
  background: #fff;
  border: 1px solid var(--line);
  min-height: 140px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.lane-chev {
  background: var(--ink);
  clip-path: polygon(0 0, 100% 0, 62% 50%, 100% 100%, 0 100%);
  position: relative;
}
.lane-chev::after {
  content: "";
  position: absolute;
  inset: 18% 28% 18% 18%;
  background: var(--amber);
  clip-path: polygon(0 0, 70% 0, 100% 50%, 70% 100%, 0 100%, 22% 50%);
}
.lane-body { padding: 24px 28px; }
.lane-tag {
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--amber-deep);
  margin-bottom: 8px;
}
.lane-body p {
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 68ch;
}

/* Quote */
.quote-band {
  background: var(--ink);
  color: var(--on-dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.quote-band::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 10%;
  width: 220px;
  height: 70%;
  clip-path: var(--chev);
  background: rgba(232,154,26,.1);
  animation: chevPulse 7s var(--ease) infinite;
}
.quote-inner { position: relative; z-index: 1; max-width: 820px; }
.quote-mark {
  display: block;
  width: 48px;
  height: 28px;
  margin-bottom: 18px;
  clip-path: var(--chev);
  background: var(--amber);
}
blockquote { margin: 0; }
blockquote p {
  font-family: "Oswald", sans-serif;
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
  text-transform: uppercase;
  letter-spacing: .03em;
  line-height: 1.2;
  color: var(--on-dark);
  max-width: 20ch;
}
.quote-attr {
  margin: 18px 0 0;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--amber);
}

/* About */
.about {
  background: var(--paper-2);
  padding: 88px 0;
}
.about-inner {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 48px;
  align-items: start;
}
.about-copy p {
  color: var(--muted);
  margin: 14px 0 0;
  max-width: 58ch;
}
.about-facts {
  display: grid;
  gap: 0;
  border-top: 2px solid var(--ink);
}
.about-facts li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
  transition: background .2s var(--ease), transform .2s var(--ease);
}
.fact-k {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--amber-deep);
}
.fact-v {
  font-size: 1.05rem;
  color: var(--ink);
  font-weight: 600;
}

/* FAQ */
.faq {
  background: var(--paper);
  padding: 88px 0;
}
.faq-list { display: flex; flex-direction: column; gap: 10px; max-width: 820px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: 0;
  padding: 20px 22px;
  text-align: left;
  cursor: pointer;
  font-family: "Oswald", sans-serif;
  font-size: 1.05rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink);
}
.faq-ico {
  flex: 0 0 22px;
  width: 22px; height: 14px;
  clip-path: polygon(0 0, 70% 0, 100% 50%, 70% 100%, 0 100%, 22% 50%);
  background: var(--amber);
  transition: transform .25s var(--ease);
}
.faq-item.open .faq-ico { transform: rotate(90deg); }
.faq-a {
  display: none;
  padding: 0 22px 20px;
  color: var(--muted);
}
.faq-item.open .faq-a { display: block; }
.faq-a p { margin: 0; max-width: 62ch; }

/* Contact */
.contact-band {
  background: var(--ink);
  color: var(--on-dark);
  padding: 88px 0;
}
.contact-inner {
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: 40px;
  align-items: start;
}
.contact-copy h2 { color: var(--on-dark); }
.contact-copy p {
  color: var(--on-dark-dim);
  max-width: 48ch;
  margin: 14px 0 0;
}
.contact-email {
  display: inline-block;
  margin-top: 26px;
  font-family: "Oswald", sans-serif;
  font-size: clamp(1.3rem, 2.6vw, 1.85rem);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--amber);
  border-bottom: 2px solid var(--amber);
  padding-bottom: 4px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.contact-meta {
  margin-top: 14px !important;
  font-size: .95rem;
}
.contact-aside {
  border-left: 3px solid var(--amber);
  padding: 8px 0 8px 24px;
}
.contact-aside-kicker {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--amber);
  margin-bottom: 10px;
}
.contact-link {
  font-family: "Oswald", sans-serif;
  font-size: 1.15rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--on-dark);
  border-bottom: 1px solid rgba(247,243,236,.35);
  padding-bottom: 3px;
  transition: color .2s var(--ease);
}
.contact-aside-note {
  margin: 16px 0 0;
  color: var(--on-dark-dim);
  font-size: .95rem;
}

/* Footer */
.site-footer {
  background: #120F0D;
  color: var(--on-dark-dim);
  padding: 36px 0 22px;
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 28px; flex-wrap: wrap;
  padding-bottom: 28px; border-bottom: 1px solid var(--line-dark);
}
.footer-tag { color: var(--on-dark-dim); margin: 12px 0 0; font-size: .95rem; max-width: 38ch; }
.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-nav a {
  color: var(--on-dark-dim);
  font-family: "Oswald", sans-serif;
  font-size: 13px;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-weight: 500;
  transition: color .2s;
}
.footer-bottom {
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  color: var(--on-dark-dim); font-size: 14px; padding-top: 18px;
}

/* Reveal MUST sit before hover transforms */
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .edge-chev, .slide-chev, .rail-runner, .quote-band::before { animation: none; }
  .btn, .lane, .sprint-cell, .faq-item, .about-facts li { transition: none; }
}

/* Hover AFTER .reveal.in so lift is not overwritten */
@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover {
    transform: translateY(-3px);
    background: #f0ad3a;
    box-shadow: 0 16px 32px -12px rgba(232,154,26,.75);
  }
  .btn-ghost:hover {
    transform: translateX(6px);
    background: rgba(232,154,26,.28);
    color: var(--amber-glow);
  }
  .nav a:hover { color: var(--amber); }
  .nav .nav-cta:hover { background: #f0ad3a; color: var(--ink); }
  .sprint-cell:hover {
    transform: translateX(6px);
    background: #524940;
  }
  .lane:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--amber);
  }
  .about-facts li:hover {
    background: rgba(232,154,26,.08);
    transform: translateX(4px);
  }
  .faq-q:hover { color: var(--amber-deep); }
  .faq-item:hover { box-shadow: var(--shadow); border-color: var(--amber); }
  .contact-email:hover { color: var(--amber-glow); border-bottom-color: var(--amber-glow); }
  .contact-link:hover { color: var(--amber); }
  .footer-nav a:hover { color: var(--on-dark); }
}

/* Tablet */
@media (max-width: 1100px) {
  .sprint-track {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .sprint-cell {
    margin-right: 0;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), 50% 100%, 0 calc(100% - 18px));
    min-height: 0;
    padding: 22px 22px 32px;
  }
}

@media (max-width: 980px) {
  .hero-inner,
  .about-inner,
  .contact-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero { min-height: 0; padding: 118px 0 64px; }
  .hero-chevs { max-width: 420px; }
  .hero h1 { max-width: 14ch; }
}

/* Mobile ~390px */
@media (max-width: 720px) {
  .container { padding: 0 18px; }
  .header-inner { height: 64px; }

  .nav-toggle { display: flex; }
  .nav {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--ink);
    border-bottom: 1px solid var(--line-dark);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 18px 18px;
  }
  .nav.open { display: flex; }
  .nav a {
    padding: 14px 4px;
    border-bottom: 1px solid var(--line-dark);
    font-size: 15px;
  }
  .nav .nav-cta {
    margin-top: 12px;
    text-align: center;
    justify-content: center;
    display: inline-flex;
    align-self: flex-start;
    clip-path: var(--chev);
  }

  .hero { padding: 100px 0 48px; }
  .hero-actions { gap: 10px; }
  .btn { padding: 13px 28px 13px 20px; font-size: 13px; }
  .slide-chev { height: 28px !important; }
  .chev-stack { min-height: 180px; gap: 8px; }
  .edge-chev { height: 56px; width: 80% !important; }

  .sprint, .practice, .about, .faq, .contact-band, .quote-band {
    padding: 64px 0;
  }
  .sprint-head h2,
  .practice h2,
  .about h2,
  .faq h2,
  .contact-copy h2 {
    max-width: none;
  }
  .lanes { gap: 12px; }
  .lane {
    grid-template-columns: 36px 1fr;
    min-height: 0;
  }
  .lane-body { padding: 18px 16px; }
  .about-facts li { grid-template-columns: 1fr; gap: 4px; padding: 16px 0; }
  .contact-aside { border-left: 0; border-top: 3px solid var(--amber); padding: 18px 0 0; }
  .footer-inner { flex-direction: column; }
  .footer-nav { gap: 14px; }
  .quote-band::before { display: none; }
}

@media (max-width: 420px) {
  .hero h1 { font-size: 2.15rem; }
  .sprint-cell { padding: 20px 16px 30px; }
  .faq-q { font-size: .95rem; padding: 16px; }
  .faq-a { padding: 0 16px 16px; }
  .contact-email { font-size: 1.15rem; word-break: break-all; }
}