/* ============================================================
   ITSE ISANNOIDUT FONTIT
   Poista kommenttimerkit vasta kun .woff2-tiedostot ovat
   kansiossa fontit/. Ohjeet: fontit/LUE-MINUT.txt
   ============================================================
@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(../fontit/inter-400.woff2) format("woff2")}
@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(../fontit/inter-500.woff2) format("woff2")}
@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(../fontit/inter-600.woff2) format("woff2")}
@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(../fontit/inter-700.woff2) format("woff2")}
@font-face{font-family:Inter;font-style:normal;font-weight:800;font-display:swap;src:url(../fontit/inter-800.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url(../fontit/plexmono-400.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url(../fontit/plexmono-500.woff2) format("woff2")}
*/

/* ============================================================
   TRIDICO — muuttujat
   ============================================================ */
:root{
  --black:#111111;
  --graphite:#222222;
  --grey:#F5F5F5;
  --white:#FFFFFF;
  --green:#72C900;
  --green-ink:#5AA300;          /* tummempi vihreä vaalealle taustalle, kontrastin vuoksi */
  --text-dim:#A7A7A7;
  --line-dark:rgba(255,255,255,.14);
  --line-light:#E2E2E2;
  --pad:clamp(20px,5vw,56px);
  --maxw:1240px;
  --r:3px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--white);
  color:var(--black);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:17px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%;height:auto}
/* height:auto on pakollinen. Kuvissa on width- ja height-attribuutit,
   jotka varaavat tilan ennen latausta. Ilman height:autoa selain
   kutistaa leveyden mutta pitaa korkeuden lukittuna -> kuva venyy. */
a{color:inherit}

h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.03em;line-height:1.05}
h1{font-size:clamp(38px,6.4vw,72px)}
h2{font-size:clamp(30px,4.6vw,54px)}
h3{font-size:21px;font-weight:700;letter-spacing:-.015em;line-height:1.25}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}
.section{padding:clamp(64px,8.5vw,116px) 0}
.section-dark{background:var(--black);color:var(--white)}
.section-grey{background:var(--grey)}

.eyebrow{
  font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--green-ink);margin:0 0 18px;
}
.section-dark .eyebrow{color:var(--green)}
.lead{font-size:clamp(17px,1.9vw,20px);color:#4A4A4A;max-width:62ch}
.section-dark .lead{color:var(--text-dim)}
.section-head{max-width:64ch;margin-bottom:clamp(36px,5vw,58px)}
.section-head .lead{margin-top:20px}

/* ---------- painikkeet ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  padding:14px 26px;border-radius:var(--r);border:1px solid transparent;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.btn-green{background:var(--green);color:#0C1400;font-weight:700}
.btn-green:hover{background:#63B000}
.btn-green[disabled]{opacity:.6;cursor:default}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;
  font-weight:600;font-size:15px;text-decoration:none;color:var(--green-ink);
}
.section-dark .link-arrow{color:var(--green)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}

a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid var(--green);outline-offset:2px;
}

.skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--green);color:#0C1400;padding:12px 18px;font-weight:700}
.skip:focus{left:8px;top:8px}

/* ============================================================
   Navigaatio
   ============================================================ */
.nav-bar{
  position:sticky;top:0;z-index:100;
  background:rgba(17,17,17,.94);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line-dark);
  color:var(--white);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--white)}
.brand-mark{width:32px;height:36px;flex:none}
.brand-word{width:104px;height:15px;display:block}
.brand-tag{
  font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-size:9.5px;letter-spacing:.22em;color:var(--text-dim);
  text-transform:uppercase;margin-top:5px;display:block;
}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:15px;font-weight:500;text-decoration:none;color:#E6E6E6}
.nav-links a:hover{color:var(--green)}
.nav-cta{padding:11px 20px;font-size:14.5px;color:#0C1400}
.nav-toggle{display:none;background:none;border:1px solid var(--line-dark);border-radius:var(--r);padding:10px 12px;cursor:pointer}
.nav-toggle i{display:block;width:20px;height:2px;background:var(--white);margin:4px 0}

/* ============================================================
   Hero
   ============================================================ */
.hero{background:var(--black);color:var(--white);padding:clamp(56px,7vw,96px) 0 clamp(60px,7vw,100px)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,64px);align-items:center}
.hero h1{margin-bottom:26px}
.hero h1 b{color:var(--green);font-weight:800}
.hero-sub{font-size:clamp(17px,1.9vw,20px);font-weight:600;max-width:46ch;margin-bottom:14px}
.hero-tags{
  font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-dim);margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px 26px}
.hero-visual{margin:0}
.hero-visual img{width:100%;height:auto;border-radius:var(--r)}
.hero-visual figcaption{
  font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:#8A8A8A;margin-top:14px;
}

/* ============================================================
   Hyötyrivi
   ============================================================ */
.benefits{border-bottom:1px solid var(--line-light);background:var(--white)}
.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.benefit{padding:clamp(28px,3.5vw,44px) clamp(20px,2.4vw,34px);border-right:1px solid var(--line-light)}
.benefit:first-child{padding-left:0}
.benefit:last-child{border-right:0;padding-right:0}
.benefit svg{width:26px;height:26px;stroke:var(--green-ink);fill:none;stroke-width:1.6;margin-bottom:20px}
.benefit h3{margin-bottom:8px;font-size:19px}
.benefit p{font-size:15.5px;color:#555;margin:0}

/* ============================================================
   Palvelut
   ============================================================ */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2vw,26px)}
.card{
  background:var(--white);border:1px solid var(--line-light);border-radius:var(--r);
  padding:clamp(26px,2.8vw,36px);display:flex;flex-direction:column;
  transition:border-color .16s ease;
}
.card:hover{border-color:var(--black)}
.card-num{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:12px;letter-spacing:.18em;color:#909090;margin-bottom:26px}
.card h3{margin-bottom:12px}
.card p{color:#555;font-size:16px;margin-bottom:26px}
.card .link-arrow{margin-top:auto;align-self:flex-start}

/* ============================================================
   Piensarjat
   ============================================================ */
.series-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:start}
.qty-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-dark);border:1px solid var(--line-dark);border-radius:var(--r);overflow:hidden}
.qty{background:var(--black);padding:26px 24px 24px}
.qty b{display:block;font-size:clamp(40px,5vw,58px);font-weight:800;letter-spacing:-.05em;line-height:1;color:var(--white)}
.qty b::after{content:"";display:block;width:26px;height:3px;background:var(--green);margin:14px 0 12px}
.qty span{font-size:15px;color:var(--text-dim)}
.series-note{margin-top:28px;padding-left:18px;border-left:3px solid var(--green);font-weight:600;font-size:17px}

/* ============================================================
   Materiaalit
   ============================================================ */
.cards-4{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,1.6vw,20px)}
.mat{background:var(--white);border:1px solid var(--line-light);border-radius:var(--r);padding:26px 24px 28px}
.mat h3{margin-bottom:10px;font-size:20px}
.mat p{font-size:15.5px;color:#555;margin:0}
.footnote{margin-top:26px;font-size:14.5px;color:#666}
/* valintaperusteet materiaaliosiossa */
.criteria{
  list-style:none;margin:0 0 clamp(28px,3.5vw,40px);padding:0;
  display:flex;flex-wrap:wrap;gap:10px 0;
  border-top:1px solid var(--line-light);border-bottom:1px solid var(--line-light);
}
.criteria li{
  font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:#555;
  padding:14px 20px 14px 0;margin-right:20px;position:relative;
}
.criteria li:not(:last-child)::after{
  content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:1px;height:12px;background:var(--line-light);
}
.mat-tier{
  font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:#8A8A8A;margin-bottom:14px;
}
.mat-tier-adv{color:var(--green-ink)}
/* viiden kortin ruudukko: kaytossa kun PET-CF otetaan mukaan */
.cards-5{display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(14px,1.4vw,18px)}
@media (max-width:1080px){.cards-5{grid-template-columns:repeat(3,1fr)}}
@media (max-width:760px){.cards-5{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.cards-5{grid-template-columns:1fr}}
/* kuuden kortin ruudukko: kaytossa kun seka PET-CF etta TPU otetaan mukaan */
.cards-6{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.5vw,18px)}
@media (max-width:760px){.cards-6{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.cards-6{grid-template-columns:1fr}}

/* ============================================================
   Toistettavuus / osatunniste
   ============================================================ */
.repeat-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.plate{background:var(--graphite);border:1px solid var(--line-dark);border-radius:var(--r);padding:clamp(24px,3vw,34px);color:var(--white)}
.plate-id{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:clamp(24px,3.4vw,38px);font-weight:500;line-height:1.1}
.plate-id em{font-style:normal;color:var(--green)}
.plate-sub{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--text-dim);margin-top:10px}
.plate-list{list-style:none;margin:26px 0 0;padding:0;border-top:1px solid var(--line-dark)}
.plate-list li{display:flex;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid var(--line-dark);font-size:15.5px}
.plate-list li::before{content:"";width:7px;height:7px;background:var(--green);flex:none;border-radius:1px}

/* ============================================================
   Prosessi
   ============================================================ */
.steps{display:grid;grid-template-columns:repeat(5,1fr);border-top:2px solid var(--black)}
.step{padding:26px 22px 8px 0;border-right:1px solid var(--line-light);position:relative}
.step:last-child{border-right:0;padding-right:0}
.step:not(:first-child){padding-left:22px}
.step::before{content:"";position:absolute;top:-2px;left:0;width:34px;height:2px;background:var(--green)}
.step:not(:first-child)::before{left:22px}
.step-num{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:12px;letter-spacing:.18em;color:#909090;margin-bottom:16px}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:15px;color:#555;margin:0}

/* ============================================================
   CAD-rajaus
   ============================================================ */
.scope{
  background:var(--grey);border-left:4px solid var(--black);border-radius:0 var(--r) var(--r) 0;
  padding:clamp(28px,3.4vw,44px);display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(24px,4vw,52px);
}
.scope h2{font-size:clamp(26px,3.2vw,38px)}
.scope p{font-size:16.5px;color:#4A4A4A}

/* ============================================================
   Tarjouspyyntö
   ============================================================ */
.quote-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(34px,5vw,72px);align-items:start}
.checklist{list-style:none;margin:26px 0 0;padding:0}
.checklist li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px solid var(--line-dark);font-size:16.5px}
.checklist li::before{content:"";width:9px;height:9px;border:2px solid var(--green);flex:none;margin-top:8px}
.form-card{background:var(--graphite);border:1px solid var(--line-dark);border-radius:var(--r);padding:clamp(24px,3vw,38px)}
.field{margin-bottom:16px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field label{display:block;font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--text-dim);margin-bottom:7px}
.field .opt{color:#7E7E7E}
.field input,.field select,.field textarea{
  width:100%;padding:13px 14px;font-family:inherit;font-size:16px;
  color:var(--white);background:#1A1A1A;border:1px solid var(--line-dark);border-radius:var(--r);
}
.field textarea{min-height:120px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#7E7E7E}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--green)}
.field input[type="file"]{padding:11px 12px;font-size:14.5px;color:var(--text-dim)}
.field input[type="file"]::file-selector-button{
  font-family:inherit;font-size:14px;font-weight:600;margin-right:12px;
  background:var(--white);color:var(--black);border:0;border-radius:var(--r);padding:8px 14px;cursor:pointer;
}
.field-hint{font-size:13px;color:#9A9A9A;margin-top:7px}
.field-error{display:block;font-size:13.5px;color:#FF9A8C;margin-top:6px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:22px}
.form-status{margin-top:18px;padding:14px 16px;border-left:3px solid var(--green);background:#1A1A1A;font-size:15px;display:none}
.form-status.show{display:block}
.form-status.error{border-left-color:#FF9A8C}
.privacy-note{font-size:13px;color:#9A9A9A;margin-top:16px}

/* ============================================================
   Footer
   ============================================================ */
.site-footer{background:var(--black);color:var(--text-dim);padding:clamp(52px,6vw,76px) 0 26px;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:40px}
.site-footer h4{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:#8A8A8A;font-weight:400;margin-bottom:16px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:10px}
.site-footer a{text-decoration:none}
.site-footer a:hover{color:var(--green)}
.footer-brand p{margin-top:18px;max-width:38ch}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:12px 26px;justify-content:space-between;font-size:13px;color:#8A8A8A;
}

/* ============================================================
   Responsiivisuus
   ============================================================ */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .benefit-grid{grid-template-columns:1fr 1fr}
  .benefit{border-bottom:1px solid var(--line-light);padding-left:0;padding-right:clamp(20px,2.4vw,34px)}
  .benefit:nth-child(2n){border-right:0;padding-right:0;padding-left:clamp(20px,2.4vw,34px)}
  .benefit:nth-child(n+3){border-bottom:0}
  .cards-4{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr 1fr}
  .step{border-bottom:1px solid var(--line-light);padding-bottom:24px}
  .step:nth-child(3n){border-right:0}
  .step:nth-child(n+4){border-bottom:0}
}
@media (max-width:860px){
  .nav-links{
    position:fixed;inset:72px 0 auto 0;display:none;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--black);border-bottom:1px solid var(--line-dark);padding:6px var(--pad) 24px;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:15px 0;border-bottom:1px solid var(--line-dark);font-size:16px}
  .nav-cta{margin-top:18px;border-bottom:0}
  .nav-toggle{display:block}
  .cards-3{grid-template-columns:1fr}
  .series-grid,.repeat-grid,.quote-grid,.scope{grid-template-columns:1fr}
  .scope{gap:20px}
  .steps{grid-template-columns:1fr;border-top:0}
  .step{border-right:0;border-top:2px solid var(--line-light);padding:22px 0 24px}
  .step:first-child{border-top-color:var(--black)}
  .step:not(:first-child){padding-left:0}
  .step:not(:first-child)::before{left:0}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:540px){
  .benefit-grid{grid-template-columns:1fr}
  .benefit{border-right:0;padding-left:0;padding-right:0;border-bottom:1px solid var(--line-light)}
  .benefit:nth-child(2n){padding-left:0}
  .benefit:last-child{border-bottom:0}
  .benefit:nth-child(n+3){border-bottom:1px solid var(--line-light)}
  .benefit:last-child{border-bottom:0}
  .cards-4{grid-template-columns:1fr}
  .qty-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}

/* ---------- kevyt esiintuonti ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}