/* ROTOCON website UI kit — global styles. Imports the system tokens. */
@import url('./colors_and_type.css');

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--rwo-font);
  font-weight: var(--rwo-w-medium);
  color: var(--rwo-text);
  background: var(--rwo-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; }
button { font-family: inherit; }
a { color: inherit; text-decoration: none; }

.wrap { width: 100%; max-width: var(--rwo-maxw); margin: 0 auto; padding-inline: var(--rwo-gutter); }
.section { padding-block: clamp(3.5rem, 8vw, 7rem); }

/* ---- Technical anthracite treatment (for product / engineering sections) ---- */
.tech { position: relative; background: #2a2928; color: #fff; overflow: hidden; }
.tech .muted { color: rgba(255,255,255,.62); }
.tech .h2, .tech .h3 { color: #fff; }
.tech::before { /* faint engineering grid */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .6;
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(120% 90% at 80% 10%, #000 0%, transparent 75%);
}
.specline { display: inline-flex; align-items: center; gap: 0.55rem; font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: 0.76rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--rwo-accent); }
.specline::before { content: ""; width: 24px; height: 1px; background: var(--rwo-accent); }
.tech .specline { color: #ff5a52; }
.spec-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.12); border-radius: var(--rwo-r-md); overflow: hidden; }
.spec-cell { background: #2a2928; padding: 1.1rem 1.3rem; }
.spec-cell .k { font-family: ui-monospace, Menlo, monospace; font-size: 0.7rem; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.5); }
.spec-cell .v { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.01em; margin-top: 3px; }
.spec-cell .v b { color: var(--rwo-accent); font-weight: 600; }
.eyebrow { font-size: var(--rwo-fs-eyebrow); font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--rwo-accent); margin: 0; }
.h-display { font-weight: 600; text-transform: uppercase; letter-spacing: -0.02em; line-height: 0.98; margin: 0; }
.h2 { font-size: var(--rwo-fs-h2); font-weight: 600; text-transform: uppercase; letter-spacing: -0.01em; line-height: 1.02; margin: 0; }
.h3 { font-size: var(--rwo-fs-h3); font-weight: 600; text-transform: uppercase; letter-spacing: -0.01em; line-height: 1.06; margin: 0; }
.lead { font-size: var(--rwo-fs-lead); line-height: 1.5; color: var(--rwo-text); margin: 0; }
.body { font-size: var(--rwo-fs-body); line-height: 1.65; margin: 0; }
.muted { color: var(--rwo-text-muted); }
.de { font-style: italic; color: var(--rwo-text-muted); text-transform: none; letter-spacing: 0; font-weight: 500; }
.accent-bar { display:inline-block; width: 2.75rem; height: 3px; background: var(--rwo-accent); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-weight: 600; font-size: 0.9375rem; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 0.85rem 1.4rem; border: none; border-radius: var(--rwo-r-sm); cursor: pointer;
  transition: background var(--rwo-dur-fast) var(--rwo-ease), color var(--rwo-dur-fast) var(--rwo-ease),
              box-shadow var(--rwo-dur-fast) var(--rwo-ease), transform var(--rwo-dur-fast) var(--rwo-ease);
}
.btn svg { width: 17px; height: 17px; transition: transform var(--rwo-dur-fast) var(--rwo-ease); }
.btn:hover svg { transform: translateX(3px); }
.btn:active { transform: translateY(1px) scale(0.99); }
.btn--primary { background: var(--rwo-red); color: #fff; }
.btn--primary:hover { background: var(--rwo-red-hover); }
.btn--dark { background: var(--rwo-black-grey); color: #fff; }
.btn--dark:hover { background: #2b2a29; }
.btn--ghost { background: transparent; color: var(--rwo-text); box-shadow: inset 0 0 0 1.5px var(--rwo-line-strong); }
.btn--ghost:hover { box-shadow: inset 0 0 0 1.5px var(--rwo-black-grey); }
.btn--ghost-light { background: transparent; color: #fff; box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.45); }
.btn--ghost-light:hover { box-shadow: inset 0 0 0 1.5px #fff; background: rgba(255,255,255,.08); }
.btn--lg { padding: 1.05rem 1.7rem; font-size: 1rem; }
.btn--sm { padding: 0.6rem 1rem; font-size: 0.8125rem; }

.textlink { display:inline-flex; align-items:center; gap:0.4rem; font-weight:600; color: var(--rwo-text); }
.textlink svg { width:16px; height:16px; transition: transform var(--rwo-dur-fast) var(--rwo-ease); }
.textlink:hover svg { transform: translateX(3px); }
.textlink--red { color: var(--rwo-accent); }

/* ---- Reveal-on-scroll. Opacity stays 1 (always readable even if the motion
   engine is frozen); only transform animates. ---- */
.reveal { transform: translateY(30px); transition: transform 1.1s var(--rwo-ease); }
.reveal.in { transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { transform: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---- Header ---- */
.hdr { position: fixed; inset: 0 0 auto 0; z-index: 100; transition: background var(--rwo-dur-mid) var(--rwo-ease), box-shadow var(--rwo-dur-mid) var(--rwo-ease), border-color var(--rwo-dur-mid) var(--rwo-ease); border-bottom: 1px solid transparent; }
.hdr__inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.hdr--solid { background: rgba(255,255,255,0.86); backdrop-filter: saturate(1.4) blur(14px); border-bottom-color: var(--rwo-line); }
.hdr__logo { height: 26px; cursor: pointer; }
.hdr__nav { display: flex; gap: 2rem; align-items: center; }
.hdr__link { font-size: 0.875rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--rwo-text); position: relative; cursor: pointer; padding: 4px 0; transition: color var(--rwo-dur-fast) var(--rwo-ease); }
.hdr__link::after { content:""; position:absolute; left:0; right:100%; bottom:-2px; height:2px; background: var(--rwo-accent); transition: right var(--rwo-dur-fast) var(--rwo-ease); }
.hdr__link:hover::after, .hdr__link.active::after { right: 0; }
.hdr__right { display: flex; gap: 1.25rem; align-items: center; }
.hdr--over .hdr__link, .hdr--over .lang, .hdr--over .hdr__menu { color: #fff; }
.hdr--over .hdr__link::after { background: #fff; }
.lang { display:flex; gap:0; font-size:0.8125rem; font-weight:600; letter-spacing:0.04em; align-items:center; }
.lang button { background:none; border:none; cursor:pointer; color:inherit; opacity:0.5; padding:2px 5px; font-weight:600; font-size:inherit; transition: opacity var(--rwo-dur-fast) var(--rwo-ease); }
.lang button.on { opacity:1; color: var(--rwo-accent); }
.hdr__menu { display:none; background:none; border:none; cursor:pointer; color: var(--rwo-text); }

/* ---- Marquee ---- */
.marquee { background: var(--rwo-black-grey); color: #fff; overflow: hidden; padding-block: 1.1rem; border-block: 1px solid rgba(255,255,255,.08); }
.marquee__track { display: flex; gap: 3rem; width: max-content; animation: marquee 28s linear infinite; }
.marquee__item { display:inline-flex; align-items:center; gap:1.1rem; font-weight:600; text-transform:uppercase; letter-spacing:0.06em; font-size:0.95rem; white-space:nowrap; }
.marquee__item .dot { color: var(--rwo-accent); font-size: 1.2rem; line-height:0; }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce){ .marquee__track{ animation:none; } }

/* ---- Machine cards ---- */
.mgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.mcard { background:#fff; border:1px solid var(--rwo-line); border-radius: var(--rwo-r-lg); overflow:hidden; cursor:pointer; box-shadow: var(--rwo-shadow-sm); transition: box-shadow var(--rwo-dur-mid) var(--rwo-ease), transform var(--rwo-dur-mid) var(--rwo-ease); display:flex; flex-direction:column; }
.mcard:hover { box-shadow: var(--rwo-shadow-lg); transform: translateY(-4px); }
.mcard__img { aspect-ratio: 16/11; overflow:hidden; background: var(--rwo-cream); }
.mcard__img img { width:100%; height:100%; object-fit:cover; transition: transform var(--rwo-dur-mid) var(--rwo-ease); }
.mcard:hover .mcard__img img { transform: scale(1.045); }
.mcard__body { padding: 1.1rem 1.25rem 1.35rem; display:flex; flex-direction:column; gap:0.5rem; flex:1; }
.mcard__title { font-size:1.35rem; font-weight:600; text-transform:uppercase; letter-spacing:-0.01em; }
.mcard__meta { font-size:0.9rem; color: var(--rwo-text-muted); flex:1; }

/* ---- Stats ---- */
.stats { display:grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.stat__n { font-size: clamp(2.75rem, 5vw, 4.25rem); font-weight:600; letter-spacing:-0.03em; line-height:1; }
.stat__n b { color: var(--rwo-accent); font-weight:600; }
.stat__l { font-size:0.8125rem; font-weight:600; letter-spacing:0.08em; text-transform:uppercase; color: var(--rwo-text-muted); margin-top:0.6rem; }

/* ---- Footer ---- */
.ftr { background: var(--rwo-black-grey); color: #fff; padding-block: 4rem 2rem; }
.ftr a { color: rgba(255,255,255,.72); transition: color var(--rwo-dur-fast) var(--rwo-ease); }
.ftr a:hover { color:#fff; }
.ftr__cols { display:grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2.5rem; }
.ftr__h { font-size:0.8125rem; font-weight:600; letter-spacing:0.1em; text-transform:uppercase; color: rgba(255,255,255,.5); margin:0 0 1rem; }
.ftr__list { display:flex; flex-direction:column; gap:0.7rem; font-size:0.95rem; }
.ftr__bottom { display:flex; justify-content:space-between; align-items:center; margin-top:3rem; padding-top:1.5rem; border-top:1px solid rgba(255,255,255,.12); font-size:0.8125rem; color: rgba(255,255,255,.5); }
.ftr__social { display:flex; gap:0.9rem; }
.ftr__social img { width:22px; height:22px; opacity:0.8; transition: opacity var(--rwo-dur-fast) var(--rwo-ease); filter: brightness(0) invert(1); }
.ftr__social a:hover img { opacity:1; }

@media (max-width: 900px) {
  .mgrid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; gap: 2rem 1rem; }
  .ftr__cols { grid-template-columns: 1fr 1fr; }
  .hdr__nav { display:none; }
  .hdr__menu { display:flex; }
}
@media (max-width: 640px) {
  .mgrid { grid-template-columns: 1fr; }
}