/* ============================================================
   VALERON PACKTECH — site stylesheet
   Locked palette + IBM Plex engineering-document type system.
   Replace nothing in the :root token block — it is brand-locked.
   ============================================================ */

:root{
  /* --- Brand-locked colour tokens --- */
  --indigo:        #1A2238;   /* Midnight Indigo  — primary dark */
  --indigo-deep:   #131829;   /* darker indigo for depth only (never lighter) */
  --copper:        #B87333;   /* Forged Copper    — accent (10%) */
  --ivory:         #F5F1E8;   /* Warm Ivory       — light neutral */
  --carbon:        #1C1C1C;   /* Carbon Black     — dark neutral */
  --gunmetal:      #3A3D40;   /* Gunmetal         — tertiary neutral */

  /* --- Derived working values (no new brand hues) --- */
  --ink:           #2A2A2A;                    /* body text on ivory = Carbon @ ~85% */
  --ink-soft:      #4A4A4A;                    /* secondary text on ivory */
  --on-dark:       #F5F1E8;                    /* text on indigo */
  --on-dark-soft:  rgba(245,241,232,0.74);     /* secondary text on indigo */
  --hairline-dark: rgba(245,241,232,0.16);     /* dividers on indigo */
  --hairline-lite: rgba(26,34,56,0.14);        /* dividers on ivory */

  /* --- Type --- */
  --serif: 'IBM Plex Serif', Georgia, 'Times New Roman', serif;
  --sans:  'IBM Plex Sans', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --mono:  'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* --- Layout --- */
  --measure: 1120px;
  --pad-x: clamp(1.25rem, 5vw, 3rem);
  --sec-y: clamp(4rem, 8.5vw, 7rem);
}

/* ---------- Reset / base ---------- */
*{ box-sizing: border-box; }
html{ -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--ivory);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg{ max-width: 100%; display: block; }
a{ color: inherit; }

h1,h2,h3,h4{ font-family: var(--serif); font-weight: 600; line-height: 1.12; margin: 0; letter-spacing: -0.01em; }
p{ margin: 0 0 1.1em; }

.container{ width: 100%; max-width: var(--measure); margin-inline: auto; padding-inline: var(--pad-x); }

/* ---------- Section system ---------- */
.section{ padding-block: var(--sec-y); }
.section--ivory{ background: var(--ivory); color: var(--ink); }
.section--indigo{ background: var(--indigo); color: var(--on-dark); }
.section--indigo h1,.section--indigo h2,.section--indigo h3{ color: var(--on-dark); }
.section--tight{ padding-block: clamp(2.5rem, 5vw, 3.75rem); }

/* ---------- Eyebrow (copper datum-tick + mono label) — the signature device ---------- */
.eyebrow{
  display: inline-flex; align-items: center; gap: 0.7rem;
  font-family: var(--mono); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--indigo); margin: 0 0 1.1rem;
}
.section--indigo .eyebrow, .on-dark .eyebrow{ color: var(--on-dark); }
.eyebrow::before{
  content:""; width: 26px; height: 2px; background: var(--copper); flex: none;
}

/* ---------- Type scale ---------- */
.display{ font-size: clamp(2.35rem, 6vw, 4.15rem); line-height: 1.04; letter-spacing: -0.02em; }
.h2{ font-size: clamp(1.7rem, 3.6vw, 2.55rem); }
.h3{ font-size: clamp(1.18rem, 2vw, 1.45rem); line-height: 1.2; }
.lead{ font-size: clamp(1.1rem, 1.6vw, 1.3rem); line-height: 1.55; color: var(--ink-soft); max-width: 46ch; }
.section--indigo .lead, .on-dark .lead{ color: var(--on-dark-soft); }
.measure-text{ max-width: 62ch; }

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--sans); font-weight: 600; font-size: 0.98rem; letter-spacing: 0.01em;
  padding: 0.85rem 1.4rem; border: 1.5px solid transparent; border-radius: 3px;
  text-decoration: none; cursor: pointer; transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn svg{ width: 1.05em; height: 1.05em; }
.btn:active{ transform: translateY(1px); }

/* On ivory: indigo solid + indigo outline (no copper element on cream) */
.btn--primary{ background: var(--indigo); color: var(--ivory); border-color: var(--indigo); }
.btn--primary:hover{ background: var(--indigo-deep); }
.btn--secondary{ background: transparent; color: var(--indigo); border-color: rgba(26,34,56,0.4); }
.btn--secondary:hover{ border-color: var(--indigo); background: rgba(26,34,56,0.04); }

/* On indigo: copper solid (the working accent) + ivory outline */
.on-dark .btn--primary, .section--indigo .btn--primary{ background: var(--copper); color: var(--indigo); border-color: var(--copper); }
.on-dark .btn--primary:hover, .section--indigo .btn--primary:hover{ background: #a5662c; }
.on-dark .btn--secondary, .section--indigo .btn--secondary{ background: transparent; color: var(--on-dark); border-color: rgba(245,241,232,0.45); }
.on-dark .btn--secondary:hover, .section--indigo .btn--secondary:hover{ border-color: var(--on-dark); background: rgba(245,241,232,0.07); }

.btn-row{ display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: 1.6rem; }

/* ---------- Header / nav ---------- */
.site-header{
  position: sticky; top: 0; z-index: 50;
  background: var(--indigo);
  border-bottom: 1px solid var(--hairline-dark);
}
.nav{ display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding-block: 0.85rem; }
.brand{ display: inline-flex; align-items: flex-end; gap: 0; text-decoration: none; line-height: 1; }
.brand .wm{
  font-family: var(--serif); font-weight: 600; font-size: 1.5rem; letter-spacing: 0.01em;
  color: var(--ivory); position: relative; padding-bottom: 6px;
}
.brand .wm .v{ color: var(--copper); }
.brand .wm::after{ /* copper underscore datum under the V */
  content:""; position: absolute; left: 0; bottom: 0; width: 0.62em; height: 3px; background: var(--copper);
}
.nav-links{ display: flex; align-items: center; gap: 1.9rem; list-style: none; margin: 0; padding: 0; }
.nav-links a{
  font-family: var(--sans); font-size: 0.94rem; font-weight: 500; color: var(--on-dark-soft);
  text-decoration: none; padding-block: 0.4rem; transition: color .15s ease;
}
.nav-links a:hover, .nav-links a[aria-current="page"]{ color: var(--ivory); }
.nav-links a[aria-current="page"]{ border-bottom: 2px solid var(--copper); }
.nav-cta{ font-family: var(--sans); font-weight: 600; font-size: 0.92rem; color: var(--indigo) !important;
  background: var(--copper); padding: 0.55rem 1rem !important; border-radius: 3px; }
.nav-cta:hover{ background: #a5662c; }
.nav-toggle{ display: none; background: none; border: 1px solid var(--hairline-dark); border-radius: 3px;
  color: var(--ivory); padding: 0.45rem 0.6rem; cursor: pointer; }
.nav-toggle svg{ width: 22px; height: 22px; }

/* ---------- Hero ---------- */
.hero{ position: relative; background: linear-gradient(180deg, var(--indigo) 0%, var(--indigo-deep) 100%); color: var(--on-dark); overflow: hidden; }
.hero .container{ position: relative; padding-block: clamp(4.5rem, 10vw, 8rem); }
.hero .display{ max-width: 17ch; }
.hero .lead{ margin-top: 1.5rem; max-width: 56ch; }
/* measured registration ticks — the one bold hero moment */
.hero-measure{ position: absolute; left: var(--pad-x); right: var(--pad-x); bottom: 2.2rem; height: 1px; background: var(--hairline-dark); }
.hero-measure span{ position: absolute; bottom: 0; width: 1px; height: 9px; background: var(--copper); }
.hero-measure span:nth-child(1){ left: 0; } .hero-measure span:nth-child(2){ left: 25%; }
.hero-measure span:nth-child(3){ left: 50%; } .hero-measure span:nth-child(4){ left: 75%; }
.hero-measure span:nth-child(5){ right: 0; }

/* registration chips (mono) */
.chips{ display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 2rem; list-style: none; padding: 0; }
.chip{ font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  border: 1px solid var(--hairline-dark); color: var(--on-dark-soft); padding: 0.4rem 0.7rem; border-radius: 2px; }
.section--ivory .chip{ border-color: var(--hairline-lite); color: var(--ink-soft); }

/* ---------- Grids ---------- */
.grid{ display: grid; gap: 1.5rem; }
.grid--2{ grid-template-columns: repeat(2, 1fr); }
.grid--3{ grid-template-columns: repeat(3, 1fr); }
.grid--4{ grid-template-columns: repeat(4, 1fr); }
.section-head{ max-width: 60ch; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section-head .lead{ margin-top: 0.9rem; }

/* ---------- Cards ---------- */
.card{ background: var(--ivory); border: 1px solid var(--hairline-lite); border-radius: 4px; padding: 1.6rem; }
.card .h3{ margin-bottom: 0.5rem; }
.card p:last-child{ margin-bottom: 0; }

/* service cards — weighting export primary */
.service{ display: flex; flex-direction: column; gap: 0.4rem; padding: clamp(1.6rem, 3vw, 2.4rem); border-radius: 5px; }
.service--primary{ background: var(--indigo); color: var(--on-dark); border: 1px solid var(--indigo); }
.service--primary .h3, .service--primary .h2{ color: var(--on-dark); }
.service--primary p{ color: var(--on-dark-soft); }
.service--secondary{ background: var(--ivory); border: 1px solid var(--hairline-lite); }
.service .svc-tag{ font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 0.7rem; }
.service--primary .svc-tag{ color: var(--copper); }
.service--secondary .svc-tag{ color: var(--gunmetal); }
.service .arrow{ margin-top: 1.2rem; font-family: var(--sans); font-weight: 600; font-size: 0.95rem; text-decoration: none;
  display: inline-flex; align-items: center; gap: 0.4rem; }
.service--primary .arrow{ color: var(--copper); }
.service--secondary .arrow{ color: var(--indigo); }
.service .arrow:hover{ gap: 0.65rem; }
.service .arrow svg{ width: 1.15em; height: 1.15em; flex: none; }

/* function (machine type) cards */
.fn{ background: var(--ivory); border: 1px solid var(--hairline-lite); border-radius: 4px; padding: 1.5rem 1.4rem; }
.fn .ic{ width: 40px; height: 40px; margin-bottom: 1rem; color: var(--indigo); }
.fn .ic svg{ width: 100%; height: 100%; }
.fn h3{ font-size: 1.12rem; margin-bottom: 0.35rem; }
.fn p{ font-size: 0.96rem; color: var(--ink-soft); margin-bottom: 0.9rem; }
.fn .spec{ font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.03em; color: var(--gunmetal);
  border-top: 1px solid var(--hairline-lite); padding-top: 0.7rem; }
.fn .spec b{ color: var(--ink); font-weight: 600; }

/* ---------- Numbered process steps (real sequence only) ---------- */
.steps{ display: grid; gap: 1.2rem; counter-reset: step; }
.step{ display: grid; grid-template-columns: auto 1fr; gap: 1.1rem; align-items: start;
  padding-bottom: 1.2rem; border-bottom: 1px solid var(--hairline-lite); }
.section--indigo .step{ border-color: var(--hairline-dark); }
.step:last-child{ border-bottom: 0; padding-bottom: 0; }
.step .num{ font-family: var(--mono); font-size: 0.82rem; font-weight: 500; letter-spacing: 0.05em;
  color: var(--copper); padding-top: 0.25rem; min-width: 2.4ch; }
.step h3{ font-size: 1.15rem; margin-bottom: 0.3rem; }
.step p{ margin-bottom: 0; color: var(--ink-soft); font-size: 0.99rem; }
.section--indigo .step p{ color: var(--on-dark-soft); }

/* ---------- Inline note / callout ---------- */
.note{ font-family: var(--sans); font-size: 0.95rem; border-left: 2px solid var(--copper);
  padding: 0.2rem 0 0.2rem 1rem; color: var(--ink-soft); }
.section--indigo .note{ color: var(--on-dark-soft); }

/* ---------- Contact ---------- */
.contact-grid{ display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.wa{ display: inline-flex; align-items: center; gap: 0.7rem; background: var(--copper); color: var(--indigo);
  font-family: var(--sans); font-weight: 700; text-decoration: none; padding: 0.95rem 1.5rem; border-radius: 4px; font-size: 1.05rem; }
.wa:hover{ background: #a5662c; }
.wa svg{ width: 1.3em; height: 1.3em; }
.mail-list{ list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: 0.85rem; }
.mail-list li{ display: grid; grid-template-columns: 11ch 1fr; gap: 0.8rem; align-items: baseline;
  border-bottom: 1px solid var(--hairline-dark); padding-bottom: 0.85rem; }
.section--ivory .mail-list li{ border-color: var(--hairline-lite); }
.mail-list .role{ font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--copper); padding-top: 0.15rem; }
.mail-list a{ font-family: var(--sans); font-weight: 500; text-decoration: none; word-break: break-word; }
.mail-list a:hover{ text-decoration: underline; }
/* Brand rule: copper never as text/fill on ivory. Role labels + WhatsApp button go indigo on ivory sections;
   they remain copper on indigo sections (copper on dark is allowed). */
.section--ivory .mail-list .role{ color: var(--indigo); }
.section--ivory .wa{ background: var(--indigo); color: var(--ivory); }
.section--ivory .wa:hover{ background: var(--indigo-deep); }

/* contact form (Netlify-ready, optional) */
.form{ display: grid; gap: 1rem; }
.form label{ font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--on-dark-soft); display: block; margin-bottom: 0.4rem; }
.section--ivory .form label{ color: var(--gunmetal); }
.form input, .form textarea, .form select{
  width: 100%; font-family: var(--sans); font-size: 1rem; padding: 0.75rem 0.9rem;
  background: rgba(245,241,232,0.06); border: 1px solid var(--hairline-dark); border-radius: 3px; color: var(--on-dark);
}
.section--ivory .form input, .section--ivory .form textarea, .section--ivory .form select{
  background: #fff; border-color: var(--hairline-lite); color: var(--ink);
}
.form input::placeholder, .form textarea::placeholder{ color: rgba(245,241,232,0.4); }
.section--ivory .form input::placeholder, .section--ivory .form textarea::placeholder{ color: #9a958b; }
.form textarea{ min-height: 130px; resize: vertical; }

/* founder photo placeholder */
.portrait{ aspect-ratio: 4/5; border: 1px solid var(--hairline-lite); border-radius: 5px;
  background: var(--indigo); color: var(--on-dark-soft); display: grid; place-content: center; text-align: center;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; gap: 0.4rem; padding: 1.5rem; }
.portrait .mark{ width: 56px; height: 56px; opacity: 0.9; }

/* ---------- Footer ---------- */
.site-footer{ background: var(--indigo-deep); color: var(--on-dark-soft); }
.footer-bar{ height: 3px; background: var(--copper); }
.footer-main{ display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; padding-block: clamp(2.5rem, 5vw, 3.5rem); }
.footer-main h4{ font-family: var(--mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--on-dark); margin-bottom: 1rem; }
.footer-main ul{ list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.footer-main a{ text-decoration: none; color: var(--on-dark-soft); font-size: 0.95rem; }
.footer-main a:hover{ color: var(--ivory); }
.footer-brand .wm{ font-family: var(--serif); font-weight: 600; font-size: 1.35rem; color: var(--ivory); position: relative; padding-bottom: 6px; display: inline-block; }
.footer-brand .wm .v{ color: var(--copper); }
.footer-brand .wm::after{ content:""; position:absolute; left:0; bottom:0; width:0.62em; height:3px; background: var(--copper); }
.footer-clarify{ font-size: 0.9rem; margin-top: 0.9rem; max-width: 42ch; }
.footer-legal{ border-top: 1px solid var(--hairline-dark); padding-block: 1.25rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; color: var(--on-dark-soft); }

/* ---------- Utilities ---------- */
.stack-sm > * + *{ margin-top: 0.6rem; }
.stack-prose p{ max-width: 60ch; }
.stack-prose p:last-child{ margin-bottom: 0; }
.center{ text-align: center; }
.center .eyebrow, .center .btn-row{ justify-content: center; }
.center .lead{ margin-inline: auto; }
.hr-copper{ width: 40px; height: 2px; background: var(--copper); border: 0; margin: 1.4rem 0; }
.section--indigo .hr-copper{ background: var(--copper); }

/* ---------- Focus / motion (quality floor) ---------- */
:focus-visible{ outline: 2px solid var(--copper); outline-offset: 2px; border-radius: 2px; }
@media (prefers-reduced-motion: reduce){
  *{ animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .grid--4{ grid-template-columns: repeat(2, 1fr); }
  .grid--3{ grid-template-columns: repeat(2, 1fr); }
  .contact-grid{ grid-template-columns: 1fr; }
  .footer-main{ grid-template-columns: 1fr 1fr; }
  .footer-brand{ grid-column: 1 / -1; }
}
@media (max-width: 680px){
  .nav-links{
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: flex-start;
    gap: 0; background: var(--indigo); border-bottom: 1px solid var(--hairline-dark);
    padding: 0.5rem var(--pad-x) 1.25rem; display: none;
  }
  .nav-links.open{ display: flex; }
  .nav-links li{ width: 100%; }
  .nav-links a{ display: block; width: 100%; padding: 0.8rem 0; border-bottom: 1px solid var(--hairline-dark); }
  .nav-links a[aria-current="page"]{ border-bottom: 1px solid var(--hairline-dark); }
  .nav-cta{ margin-top: 0.6rem; display: inline-block; }
  .nav-toggle{ display: inline-flex; }
  .grid--2{ grid-template-columns: 1fr; }
  .grid--3, .grid--4{ grid-template-columns: 1fr; }
  .mail-list li{ grid-template-columns: 1fr; gap: 0.2rem; }
  .footer-main{ grid-template-columns: 1fr; }
  .step{ grid-template-columns: 1fr; gap: 0.3rem; }
  .step .num{ padding-top: 0; }
}