/* ============================================================
   ZODIAC — modern aluminium foundry site (dark · light-green)
   ============================================================ */

:root {
  /* surfaces */
  --bg:        #0e1412;
  --bg-2:      #121a16;
  --surface:   #18211c;
  --surface-2: #1e2822;
  --line:      rgba(255,255,255,.09);
  --line-2:    rgba(255,255,255,.16);

  /* text */
  --text:   #e9eee9;
  --muted:  #9fada3;
  --faint:  #707e74;

  /* brand green (light green on dark) */
  --green:        #7cb342;   /* primary fill */
  --green-deep:   #a6d86b;   /* bright accent text on dark */
  --green-bright: #9ccc5a;
  --green-soft:   #1b2a1a;   /* dark green tint (chips / icon bg) */
  --green-ink:    #14280f;   /* dark text on green surfaces */

  --grad-green: linear-gradient(120deg, #6fa83a, #9ccc5a);
  --grad-text:  linear-gradient(120deg, #c2ec96 0%, #93cd54 55%, #74ad3a 100%);

  --radius: 16px;
  --radius-lg: 22px;
  --maxw: 1180px;
  --ease: cubic-bezier(.22,.61,.36,1);

  --shadow:    0 30px 60px -34px rgba(0,0,0,.75);
  --shadow-sm: 0 14px 32px -22px rgba(0,0,0,.7);
}

/* ---------- reset ---------- */
*,*::before,*::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; -webkit-text-size-adjust: 100%; }
body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img,svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul,ol { list-style: none; padding: 0; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
:focus-visible { outline: 2px solid var(--green-bright); outline-offset: 3px; border-radius: 4px; }

/* ---------- typography ---------- */
h1,h2,h3,h4,.brand__name {
  font-family: "Archivo", "Inter", sans-serif;
  font-weight: 600; line-height: 1.08; letter-spacing: -0.02em;
}
.h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
.grad { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.section { padding: clamp(64px, 10vw, 120px) 0; position: relative; }
.section--alt { background: var(--bg-2); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 80px); }
.grid-2--center { align-items: center; }

.section__head { max-width: 640px; margin-bottom: 52px; }
.section__head--center { margin-inline: auto; text-align: center; }
.section__head .h2 { margin: 10px 0 16px; }

.kicker {
  display: inline-block; font-family: "Archivo", sans-serif;
  font-size: .8rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--green-deep); font-weight: 600;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
  padding: 8px 15px; border: 1px solid var(--line-2); border-radius: 100px;
  background: rgba(255,255,255,.03);
}
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--green-bright); box-shadow: 0 0 10px var(--green); }
.lead-muted { color: var(--muted); font-size: 1.06rem; margin-top: 18px; max-width: 56ch; }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 26px; border-radius: 100px; font-weight: 600; font-size: .98rem;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, border-color .25s, color .25s;
  will-change: transform;
}
.btn--primary { background: var(--grad-green); color: var(--green-ink); box-shadow: 0 12px 30px -12px rgba(124,179,66,.5); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 18px 38px -12px rgba(124,179,66,.6); }
.btn--ghost { border: 1px solid var(--line-2); color: var(--text); background: rgba(255,255,255,.03); }
.btn--ghost:hover { border-color: var(--green); color: var(--green-deep); transform: translateY(-2px); }
.btn--block { width: 100%; margin-top: 8px; }
.btn--lg { padding: 16px 32px; font-size: 1.02rem; }

.arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--green-deep); font-weight: 600; margin-top: 22px; }
.arrow svg { transition: transform .25s var(--ease); }
.arrow:hover svg { transform: translateX(5px); }

/* ============ NAV ============ */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background .3s, border-color .3s, box-shadow .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(14,20,18,.78);
  backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom-color: var(--line); box-shadow: var(--shadow-sm);
}
.nav__inner { max-width: var(--maxw); margin-inline: auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand__logo { width: 48px; height: auto; }
.brand__name { font-size: 1.32rem; letter-spacing: .14em; font-weight: 700; color: var(--text); }

.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__links a { color: var(--muted); font-size: .95rem; font-weight: 500; position: relative; transition: color .2s; }
.nav__links a:not(.nav__cta)::after { content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0; background: var(--grad-green); transition: width .25s var(--ease); }
.nav__links a:hover { color: var(--text); }
.nav__links a:hover:not(.nav__cta)::after,
.nav__links a.is-active:not(.nav__cta)::after { width: 100%; }
.nav__links a.is-active { color: var(--text); }
.nav__cta { padding: 10px 20px; border-radius: 100px; border: 1px solid var(--line-2); color: var(--text) !important; }
.nav__cta:hover { background: var(--grad-green); color: var(--green-ink) !important; border-color: transparent; }

.nav__toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav__toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .3s var(--ease), opacity .2s; }
.nav__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ HERO (home) ============ */
.hero {
  position: relative; min-height: 100svh; display: flex; flex-direction: column; justify-content: center;
  padding: 140px 0 60px; overflow: hidden;
}
.hero__inner { position: relative; z-index: 2; width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.hero__glow {
  position: absolute; z-index: 0; width: 70vw; height: 70vw; max-width: 880px; max-height: 880px;
  top: -20%; right: -14%;
  background: radial-gradient(circle at center, rgba(124,179,66,.40), rgba(124,179,66,.08) 45%, transparent 68%);
  filter: blur(18px); animation: float 15s ease-in-out infinite;
}
.hero__grid {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 35%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 35%, #000 30%, transparent 78%);
}
.hero__content { position: relative; z-index: 2; max-width: 840px; }
.hero__title { font-size: clamp(2.6rem, 7vw, 5rem); margin: 26px 0 22px; }
.hero__lead { color: var(--muted); font-size: clamp(1.05rem, 1.6vw, 1.2rem); max-width: 60ch; }
.hero__actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }

.hero__stats {
  position: relative; z-index: 2; margin-top: clamp(48px, 8vw, 80px);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  border-top: 1px solid var(--line); padding-top: 32px;
}
.stat__num { display: block; font-family: "Archivo", sans-serif; font-size: clamp(1.8rem, 3.4vw, 2.6rem); font-weight: 600; letter-spacing: -.02em; color: var(--green-deep); }
.stat__label { color: var(--faint); font-size: .9rem; }

.hero__scroll { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); width: 26px; height: 42px; border: 2px solid var(--line-2); border-radius: 100px; z-index: 2; display: grid; place-items: start center; padding-top: 8px; }
.hero__scroll span { width: 4px; height: 8px; border-radius: 4px; background: var(--green-bright); animation: scrolldot 1.6s infinite; }

@keyframes float { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-28px, 28px); } }
@keyframes scrolldot { 0% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(14px); opacity: 0; } 100% { opacity: 0; } }

/* ============ PAGE HERO (inner pages) ============ */
.page-hero { position: relative; padding: 160px 0 64px; overflow: hidden; background: var(--bg-2); border-bottom: 1px solid var(--line); }
.page-hero::before {
  content: ""; position: absolute; top: -40%; right: -10%; width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(124,179,66,.30), transparent 65%); filter: blur(12px); z-index: 0;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(2.2rem, 5.5vw, 3.6rem); margin: 12px 0 16px; font-family: "Archivo", sans-serif; font-weight: 600; letter-spacing: -.02em; }
.page-hero p { color: var(--muted); max-width: 60ch; font-size: 1.08rem; }
.crumb { color: var(--faint); font-size: .85rem; }
.crumb a:hover { color: var(--green-deep); }

/* ============ MARQUEE ============ */
.marquee { border-block: 1px solid var(--line); background: var(--bg-2); overflow: hidden; padding: 16px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee__track { display: flex; align-items: center; gap: 34px; width: max-content; animation: marquee 48s linear infinite; will-change: transform; }
.marquee__track span { font-family: "Archivo", sans-serif; font-size: 1.1rem; font-weight: 500; color: var(--muted); white-space: nowrap; }
.marquee__track i { color: var(--green-bright); font-style: normal; font-size: .7rem; }
@keyframes marquee { to { transform: translateX(-25%); } }

/* ============ ABOUT / TIMELINE ============ */
.signature { margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line); }
.signature strong { display: block; font-family: "Archivo", sans-serif; }
.signature span { color: var(--faint); font-size: .9rem; }

.timeline { position: relative; }
.timeline::before { content: ""; position: absolute; left: 70px; top: 8px; bottom: 8px; width: 1px; background: linear-gradient(var(--green-bright), transparent); }
.timeline li { display: grid; grid-template-columns: 64px 1fr; gap: 26px; padding: 14px 0; position: relative; }
.timeline li::before { content: ""; position: absolute; left: 67px; top: 22px; width: 7px; height: 7px; border-radius: 50%; background: var(--green-bright); box-shadow: 0 0 0 4px var(--green-soft); }
.timeline__year { font-family: "Archivo", sans-serif; font-weight: 600; color: var(--green-deep); text-align: right; padding-top: 1px; }
.timeline h3 { font-size: 1.08rem; margin-bottom: 3px; }
.timeline p { color: var(--muted); font-size: .96rem; }

/* ============ PRODUCT PREVIEW CARDS (home) ============ */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform .35s var(--ease), border-color .35s, box-shadow .35s; }
.card:hover { transform: translateY(-6px); border-color: var(--green); box-shadow: var(--shadow); }
.card__art { aspect-ratio: 4/3; background: radial-gradient(120% 120% at 30% 18%, #243121, var(--surface) 72%); display: grid; place-items: center; padding: 14px; }
.card__art img { width: 100%; height: 100%; object-fit: contain; }
.card__body { padding: 18px 20px 22px; }
.card__body h3 { font-size: 1.1rem; margin-bottom: 5px; }
.card__body p { color: var(--muted); font-size: .9rem; }

/* ============ PRODUCT DETAIL ROWS (products page) ============ */
.prod { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px,5vw,68px); align-items: center; padding: clamp(40px,7vw,72px) 0; border-top: 1px solid var(--line); }
.prod:first-of-type { border-top: none; }
.prod__art {
  background: radial-gradient(120% 120% at 30% 18%, #26331f, #131a15 72%);
  border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px;
  box-shadow: var(--shadow-sm);
}
.prod__art img { width: 100%; height: auto; }
.prod:nth-child(even) .prod__art { order: 2; }
.prod__info h2 { font-size: clamp(1.6rem,3vw,2.2rem); }
.prod__tag { display: inline-block; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--green-deep); font-weight: 600; background: var(--green-soft); padding: 5px 12px; border-radius: 100px; margin-bottom: 14px; }
.prod__info > p { color: var(--muted); margin-top: 12px; }

.specs { margin-top: 22px; display: grid; gap: 10px; }
.specs li { display: flex; justify-content: space-between; gap: 16px; font-size: .94rem; padding-bottom: 10px; border-bottom: 1px dashed var(--line-2); }
.specs li:last-child { border-bottom: none; padding-bottom: 0; }
.specs span { color: var(--faint); }
.specs strong { font-family: "Archivo", sans-serif; font-weight: 500; text-align: right; }

.alloys { margin-top: 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 22px; }
.alloys li { font-size: .94rem; color: var(--muted); display: flex; gap: 8px; align-items: baseline; }
.alloys b { color: var(--text); font-family: "Archivo", sans-serif; font-weight: 600; }

/* ============ CAPABILITIES / FEATURES ============ */
.capabilities { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cap { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; transition: transform .3s var(--ease), border-color .3s, box-shadow .3s; }
.cap:hover { transform: translateY(-5px); border-color: var(--green); box-shadow: var(--shadow); }
.cap__icon { display: grid; place-items: center; width: 50px; height: 50px; border-radius: 13px; background: var(--green-soft); color: var(--green-deep); margin-bottom: 18px; }
.cap__icon svg { width: 26px; height: 26px; }
.cap h3 { font-size: 1.12rem; margin-bottom: 8px; }
.cap p { color: var(--muted); font-size: .94rem; }

/* ============ INDUSTRIES ============ */
.industries { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.industry { text-align: center; padding: 28px 16px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); transition: transform .3s var(--ease), border-color .3s, box-shadow .3s; }
.industry:hover { transform: translateY(-4px); border-color: var(--green); box-shadow: var(--shadow); }
.industry svg { width: 34px; height: 34px; color: var(--green-deep); margin: 0 auto 14px; }
.industry span { font-family: "Archivo", sans-serif; font-weight: 600; font-size: .98rem; display: block; }
.industry small { color: var(--faint); font-size: .82rem; }

/* ============ PROCESS STEPS ============ */
.steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; counter-reset: step; }
.step { position: relative; padding: 26px 22px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.step::before { counter-increment: step; content: "0" counter(step); font-family: "Archivo", sans-serif; font-weight: 700; font-size: 1.5rem; color: var(--green-bright); }
.step h3 { margin: 8px 0 6px; font-size: 1.05rem; }
.step p { color: var(--muted); font-size: .92rem; }

/* ============ SUSTAINABILITY ============ */
.pills { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.pill { font-size: .88rem; padding: 9px 16px; border-radius: 100px; border: 1px solid var(--green); color: var(--green-deep); background: var(--green-soft); }
.solar-card { position: relative; aspect-ratio: 1/.82; border-radius: var(--radius-lg); overflow: hidden; background: linear-gradient(180deg, #14201a 0%, #0e1412 100%); border: 1px solid var(--line); box-shadow: var(--shadow-sm); display: grid; place-items: center; }
.solar-card__sun { position: absolute; top: -40px; right: -40px; width: 220px; height: 220px; border-radius: 50%; background: radial-gradient(circle, rgba(255,221,120,.55), transparent 65%); animation: pulse 5s ease-in-out infinite; }
.solar-card__panels { display: grid; grid-template-columns: repeat(3, 56px); gap: 10px; transform: perspective(600px) rotateX(46deg) rotateZ(-2deg); margin-top: 26px; }
.solar-card__panels span { height: 38px; border-radius: 4px; background: linear-gradient(135deg, #2f7b56, #15463a); border: 1px solid rgba(124,179,66,.5); position: relative; overflow: hidden; }
.solar-card__panels span::after { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, transparent 40%, rgba(255,255,255,.45) 50%, transparent 60%); animation: sheen 3.5s ease-in-out infinite; }
.solar-card__panels span:nth-child(2n)::after { animation-delay: .6s; }
.solar-card__panels span:nth-child(3n)::after { animation-delay: 1.2s; }
.solar-card__readout { position: absolute; bottom: 22px; left: 24px; z-index: 2; }
.solar-card__readout strong { display: block; font-family: "Archivo", sans-serif; font-size: 2.6rem; color: var(--green-deep); line-height: 1; }
.solar-card__readout em { color: var(--muted); font-style: normal; font-size: .9rem; }
@keyframes pulse { 0%,100% { opacity: .65; transform: scale(1); } 50% { opacity: 1; transform: scale(1.08); } }
@keyframes sheen { 0%,100% { transform: translateX(-120%); } 50% { transform: translateX(120%); } }

/* ============ CERTS ============ */
.certs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cert { display: flex; align-items: center; gap: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; transition: border-color .3s, transform .3s var(--ease), box-shadow .3s; }
.cert:hover { border-color: var(--green); transform: translateY(-4px); box-shadow: var(--shadow); }
.cert__badge { display: grid; place-items: center; width: 56px; height: 56px; flex: none; border-radius: 14px; background: var(--grad-green); color: var(--green-ink); font-family: "Archivo", sans-serif; font-weight: 700; font-size: 1.05rem; }
.cert strong { display: block; font-family: "Archivo", sans-serif; }
.cert span { color: var(--faint); font-size: .9rem; }

/* ============ CTA BAND ============ */
.cta-band { position: relative; overflow: hidden; background: var(--grad-green); border-radius: var(--radius-lg); padding: clamp(40px,6vw,64px); text-align: center; color: var(--green-ink); box-shadow: 0 30px 60px -30px rgba(124,179,66,.5); }
.cta-band h2 { font-size: clamp(1.7rem,3.4vw,2.6rem); color: var(--green-ink); }
.cta-band p { color: rgba(20,40,15,.82); margin: 12px auto 26px; max-width: 50ch; }
.cta-band .btn { background: #0e1412; color: #eafadd; }
.cta-band .btn:hover { transform: translateY(-2px); box-shadow: 0 16px 30px -12px rgba(0,0,0,.4); }

/* ============ CONTACT ============ */
.contact-list { margin-top: 30px; display: grid; gap: 20px; }
.contact-list li { display: grid; gap: 4px; }
.contact-list__k { font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: var(--faint); }
.contact-list a, .contact-list span { font-size: 1.05rem; transition: color .2s; }
.contact-list a:hover { color: var(--green-deep); }

.contact-form { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-sm); }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: 8px; }
.field input, .field select, .field textarea { width: 100%; padding: 13px 15px; background: var(--bg); border: 1px solid var(--line-2); border-radius: 12px; color: var(--text); font: inherit; transition: border-color .2s, box-shadow .2s; }
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(124,179,66,.22); }
.field select { appearance: none; cursor: pointer; }
.field select option { background: var(--surface); }
.form-note { margin-top: 14px; font-size: .9rem; color: var(--green-deep); min-height: 1.2em; }

/* ============ FOOTER ============ */
.footer { background: var(--bg-2); border-top: 1px solid var(--line); padding-top: 60px; }
.footer__inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer__brand .brand { margin-bottom: 12px; }
.footer__brand p { color: var(--muted); max-width: 36ch; }
.footer__eco { display: inline-flex; align-items: center; gap: 8px; margin-top: 14px; color: var(--green-deep); font-size: .9rem; font-weight: 500; }
.footer__col h4 { font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); margin-bottom: 16px; }
.footer__col a, .footer__col span { display: block; color: var(--muted); font-size: .95rem; padding: 5px 0; transition: color .2s; }
.footer__col a:hover { color: var(--green-deep); }
.footer__bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 22px 0; border-top: 1px solid var(--line); color: var(--faint); font-size: .88rem; }

/* ============ FOUNDRY FLOW ANIMATION ============ */
.flow { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(18px,3.5vw,38px); box-shadow: var(--shadow-sm); overflow: hidden; }
.flow svg { width: 100%; height: auto; display: block; }
.fa-label { fill: var(--muted); font-family: "Archivo", sans-serif; font-size: 15px; font-weight: 600; }
.fa-num { fill: var(--green-ink); font-family: "Archivo", sans-serif; font-size: 13px; font-weight: 700; }

.fa-flow { animation: fa-flow 1s linear infinite; }
.fa-glow { animation: fa-glow 2.4s ease-in-out infinite; }
.fa-surface { transform-box: fill-box; transform-origin: center; animation: fa-surface 3.4s ease-in-out infinite; }
.fa-billets { animation: fa-fall 1.3s linear infinite; }
.fa-vortex { transform-box: fill-box; transform-origin: center; animation: fa-vortex 2.6s linear infinite; }
.fa-drum { transform-box: fill-box; transform-origin: center; animation: fa-vortex 2s linear infinite; }
.fa-suck { animation: fa-suck 2.4s ease-in infinite; }

@keyframes fa-vortex { to { transform: rotate(360deg); } }
@keyframes fa-suck { 0% { opacity: 0; transform: translate(0,0); } 16% { opacity: 1; } 100% { opacity: 0; transform: translate(var(--sx,18px), var(--sy,26px)); } }
@keyframes fa-flow { to { stroke-dashoffset: -48; } }
@keyframes fa-glow { 0%,100% { opacity: .68; } 50% { opacity: 1; } }
@keyframes fa-surface { 0%,100% { transform: translateX(-4px); } 50% { transform: translateX(4px); } }
@keyframes fa-fall { from { transform: translateY(0); } to { transform: translateY(34px); } }

/* ============ PROCESSING LINE ANIMATION ============ */
.pl-belt > * { animation: pl-belt 1.1s linear infinite; }
.pl-incline > * { animation: pl-incline 1.1s linear infinite; }
.pl-roll { transform-box: fill-box; transform-origin: center; animation: pl-roll 1.5s linear infinite; }
.pl-roll-rev { transform-box: fill-box; transform-origin: center; animation: pl-roll 1.5s linear infinite reverse; }
.pl-flow { animation: pl-flow var(--dur, 5s) linear infinite; }
.pl-up { animation: pl-up var(--dur, 2.4s) linear infinite; }
.pl-fall { animation: pl-fall 1.8s ease-in infinite; }
.pl-mag { animation: pl-mag 3.2s ease-in-out infinite; }
.pl-eddy { animation: pl-eddy 2.8s cubic-bezier(.4,0,.7,1) infinite; }
.pl-blow { animation: pl-blow 2.6s cubic-bezier(.4,0,.7,1) infinite; }
.pl-scan { animation: pl-scan 2.4s ease-in-out infinite; }
.pl-jet { animation: pl-jet 1.3s ease-in-out infinite; }
.pl-mon { animation: pl-mon 2s linear infinite; }
.pl-head { animation: pl-head 1.6s ease-in-out infinite; }
.pl-load { animation: pl-load 4s ease-in-out infinite; }
.pl-strap { transform-box: fill-box; transform-origin: center; animation: pl-strap 1.6s ease-in-out infinite; }

@keyframes pl-belt { to { transform: translateX(40px); } }
@keyframes pl-incline { to { transform: translate(22px,-13px); } }
@keyframes pl-roll { to { transform: rotate(360deg); } }
@keyframes pl-flow { 0% { opacity: 0; transform: translateX(0); } 6% { opacity: 1; } 94% { opacity: 1; } 100% { opacity: 0; transform: translateX(var(--d, 120px)); } }
@keyframes pl-up { 0% { opacity: 0; transform: translate(0,0); } 12% { opacity: 1; } 86% { opacity: 1; } 100% { opacity: 0; transform: translate(var(--ux, 88px), var(--uy, -52px)); } }
@keyframes pl-fall { 0% { opacity: 0; transform: translate(0,0); } 18% { opacity: 1; } 100% { opacity: 0; transform: translate(var(--dx,14px), var(--dy,42px)); } }
@keyframes pl-mag { 0% { opacity: 0; transform: translate(0,0); } 12% { opacity: 1; } 40% { transform: translate(4px,-50px); } 66% { transform: translate(100px,-50px); } 100% { opacity: 0; transform: translate(106px,54px); } }
@keyframes pl-eddy { 0% { opacity: 0; transform: translate(0,0); } 14% { opacity: 1; } 100% { opacity: 0; transform: translate(36px,64px); } }
@keyframes pl-blow { 0% { opacity: 0; transform: translate(0,0); } 16% { opacity: 1; } 100% { opacity: 0; transform: translate(26px,76px); } }
@keyframes pl-scan { 0%,100% { transform: translateX(0); opacity: .45; } 50% { transform: translateX(58px); opacity: 1; } }
@keyframes pl-jet { 0%,100% { opacity: .15; } 50% { opacity: .85; } }
@keyframes pl-mon { 0% { transform: translateY(-2px); opacity: 0; } 20% { opacity: .7; } 80% { opacity: .7; } 100% { transform: translateY(22px); opacity: 0; } }
@keyframes pl-head { 0%,100% { transform: translateY(0); } 50% { transform: translateY(11px); } }
@keyframes pl-load { 0% { opacity: 0; transform: translate(0,0); } 12% { opacity: 1; } 80% { opacity: 1; transform: translate(116px,-16px); } 100% { opacity: 0; transform: translate(122px,-16px); } }
@keyframes pl-strap { 0%,100% { opacity: .35; transform: scaleY(.7); } 50% { opacity: 1; transform: scaleY(1); } }
@keyframes pkStrap { 0%,34% { opacity: 0; transform: scaleY(.5); } 41%,100% { opacity: 1; transform: scaleY(1); } }
.pkStrap { transform-box: fill-box; transform-origin: center; }

.pl-label { fill: var(--muted); font-family: "Archivo", sans-serif; font-size: 15px; font-weight: 600; }
.pl-sub { fill: var(--faint); font-family: "Inter", sans-serif; font-size: 12px; }

/* ============ GALLERY ============ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.gallery-grid__item {
  position: relative; overflow: hidden; border-radius: 12px;
  aspect-ratio: 4/3; cursor: pointer;
  border: 1px solid var(--line);
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
}
.gallery-grid__item:hover {
  transform: translateY(-4px); border-color: var(--green); box-shadow: var(--shadow);
}
.gallery-grid__item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s var(--ease);
}
.gallery-grid__item:hover img { transform: scale(1.06); }

.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(10,14,12,.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity .3s var(--ease);
}
.lightbox.is-open { opacity: 1; pointer-events: auto; }
.lightbox__img {
  max-width: 90vw; max-height: 85vh; border-radius: var(--radius);
  box-shadow: 0 40px 80px -20px rgba(0,0,0,.8);
  transform: scale(.92); transition: transform .35s var(--ease);
}
.lightbox.is-open .lightbox__img { transform: scale(1); }
.lightbox__close {
  position: absolute; top: 20px; right: 24px;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,.1); border: 1px solid var(--line-2);
  color: var(--text); font-size: 1.5rem; display: grid; place-items: center;
  cursor: pointer; transition: background .2s, border-color .2s;
}
.lightbox__close:hover { background: rgba(255,255,255,.18); border-color: var(--green); }
.lightbox__nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,.08); border: 1px solid var(--line-2);
  color: var(--text); font-size: 1.3rem; display: grid; place-items: center;
  cursor: pointer; transition: background .2s, border-color .2s;
}
.lightbox__nav:hover { background: rgba(255,255,255,.16); border-color: var(--green); }
.lightbox__nav--prev { left: 20px; }
.lightbox__nav--next { right: 20px; }

/* ============ DOCUMENTS ============ */
.doc-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.doc-card {
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 20px; text-align: center; text-decoration: none;
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.doc-card:hover { transform: translateY(-5px); border-color: var(--green); box-shadow: var(--shadow); }
.doc-card__icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--green-soft); color: var(--green-deep);
  display: grid; place-items: center;
}
.doc-card__icon svg { width: 28px; height: 28px; }
.doc-card strong { font-family: "Archivo", sans-serif; font-size: 1rem; display: block; }
.doc-card span { color: var(--faint); font-size: .85rem; }
.doc-card .doc-card__dl {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .82rem; font-weight: 600; color: var(--green-deep);
  margin-top: auto; padding-top: 6px;
}

/* ============ REVEAL ============ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ============ RESPONSIVE ============ */
@media (max-width: 980px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .capabilities, .steps { grid-template-columns: 1fr 1fr; }
  .industries { grid-template-columns: repeat(3, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .doc-cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 880px) {
  .grid-2 { grid-template-columns: 1fr; }
  .certs { grid-template-columns: 1fr; }
  .prod, .prod:nth-child(even) .prod__art { grid-template-columns: 1fr; }
  .prod:nth-child(even) .prod__art { order: 0; }
  .hero__stats { grid-template-columns: 1fr 1fr; gap: 28px 20px; }

  .nav__toggle { display: flex; }
  .nav__links {
    position: fixed; inset: 64px 0 auto 0; flex-direction: column; align-items: flex-start; gap: 4px;
    background: rgba(14,20,18,.98); backdrop-filter: blur(16px);
    padding: 18px 24px 26px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow-sm);
    transform: translateY(-130%); transition: transform .4s var(--ease);
  }
  .nav__links.is-open { transform: translateY(0); }
  .nav__links a { padding: 12px 0; font-size: 1.05rem; width: 100%; }
  .nav__cta { margin-top: 8px; }
}
@media (max-width: 560px) {
  .cards, .capabilities, .steps { grid-template-columns: 1fr; }
  .industries { grid-template-columns: 1fr 1fr; }
  .alloys { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .doc-cards { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 28px; }
  .timeline::before { left: 56px; }
  .timeline li { grid-template-columns: 50px 1fr; gap: 18px; }
  .timeline li::before { left: 53px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}