/* ==========================================================================
   NAYVIK PRIVATE LIMITED — Stylesheet
   Design language: technical drafting paper. Blueprint-grid surfaces,
   hairline rules, mono spec callouts, and rotated inspection-stamp badges —
   the visual vocabulary of a CNC machine shop's own drawing sheets.
   ========================================================================== */

:root{
  /* ---- color: drafting paper + blueprint ink + stamp accents ---- */
  --paper:      #eef1f4;   /* page background — pale blueprint-paper blue-gray */
  --card:       #ffffff;   /* card / sheet surface */
  --card-dim:   #f5f7f9;
  --ink:        #172033;   /* primary text — near-navy ink */
  --ink-soft:   #566072;   /* secondary text */
  --line:       #cad2db;   /* hairline grid / rules */
  --line-soft:  #dde3e9;
  --navy:       #1d3a6b;   /* deep blueprint blue — headings, large linework */
  --blue:       #2469d1;   /* signal blue — links, CTAs (from logo) */
  --blue-dark:  #1c53a8;
  --red:        #d1352a;   /* stamp red (from logo) */
  --yellow:     #ee9f1b;   /* forge yellow (from logo) */
  --yellow-ink: #7a5410;

  --font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body: 'IBM Plex Sans', 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --container: 1180px;
  --radius: 3px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }
a{ color: var(--blue); text-decoration: none; }
a:hover{ text-decoration: underline; }

h1,h2,h3,h4{
  font-family: var(--font-display);
  color: var(--navy);
  line-height: 1.12;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}
h1{ font-weight: 700; }
h2{ font-weight: 700; }
p{ margin: 0 0 1em; }
.lede{ color: var(--ink-soft); font-size: 1.08rem; }

:focus-visible{
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

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

.mono{ font-family: var(--font-mono); }

/* ---- blueprint grid background ---- */
.grid-bg{
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 34px 34px;
  background-position: -1px -1px;
}

/* ---- registration crosshair corner marks ---- */
.crosshairs{ position: relative; }
.crosshairs::before,
.crosshairs::after,
.crosshairs .ch-tr,
.crosshairs .ch-br{
  content: "";
  position: absolute;
  width: 18px; height: 18px;
  border: 1px solid var(--navy);
  opacity: .35;
}
.crosshairs::before{ top: 14px; left: 14px; border-right: none; border-bottom: none; }
.crosshairs::after{ bottom: 14px; left: 14px; border-right: none; border-top: none; }
.crosshairs .ch-tr{ top: 14px; right: 14px; border-left: none; border-bottom: none; }
.crosshairs .ch-br{ bottom: 14px; right: 14px; border-left: none; border-top: none; }

/* ---- eyebrow label ---- */
.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-dark);
  margin: 0 0 14px;
}
.eyebrow::before{
  content: "";
  width: 22px; height: 1px;
  background: var(--red);
}

/* ---- inspection stamp badge (recurring signature motif) ---- */
.stamp{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--red);
  border: 1.5px solid var(--red);
  border-radius: 999px;
  padding: 5px 12px 5px 10px;
  transform: rotate(-3deg);
  white-space: nowrap;
}
.stamp.blue{ color: var(--blue-dark); border-color: var(--blue); }
.stamp.yellow{ color: var(--yellow-ink); border-color: var(--yellow); }

/* ---- buttons ---- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .95rem;
  padding: 13px 22px;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none !important;
  transition: background .15s ease, color .15s ease, border-color .15s ease, transform .1s ease;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{ background: var(--navy); color: #fff; }
.btn-primary:hover{ background: var(--blue-dark); }
.btn-outline{ background: transparent; color: var(--navy); border-color: var(--ink); }
.btn-outline:hover{ background: var(--navy); color: #fff; border-color: var(--navy); }
.btn-sm{ padding: 9px 16px; font-size: .85rem; }
.btn-block{ width: 100%; justify-content: center; }

/* ==========================================================================
   HEADER / NAV
   ========================================================================== */
.site-header{
  position: sticky; top: 0; z-index: 50;
  background: rgba(238,241,244,.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.nav{
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
}
.brand{
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 700; font-size: 1.15rem;
  color: var(--navy);
}
.brand img{ height: 40px; width: 40px; }
.brand small{
  display: block;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: .62rem;
  letter-spacing: .1em;
  color: var(--ink-soft);
  text-transform: uppercase;
  margin-top: 2px;
}
.nav-links{
  display: flex; align-items: center; gap: 30px;
  list-style: none; margin: 0; padding: 0;
}
.nav-links a{
  color: var(--ink);
  font-weight: 500;
  font-size: .93rem;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover, .nav-links a[aria-current="page"]{
  color: var(--navy);
  border-bottom-color: var(--red);
  text-decoration: none;
}
.nav-cta{ display: flex; align-items: center; gap: 14px; }
.nav-phone{
  display: flex; align-items: center; gap: 6px;
  font-family: var(--font-mono);
  font-size: .88rem;
  color: var(--ink);
}
.nav-toggle{
  display: none;
  background: none; border: 1.5px solid var(--ink); border-radius: 3px;
  width: 42px; height: 38px;
  cursor: pointer;
  align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content: ""; display: block; width: 20px; height: 2px; background: var(--ink);
  position: relative; transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle span::before{ position: absolute; top: -6px; }
.nav-toggle span::after{ position: absolute; top: 6px; }

@media (max-width: 860px){
  .nav-links{
    position: fixed; top: 69px; left: 0; right: 0;
    background: var(--card);
    border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: flex-start;
    gap: 0; padding: 8px 24px 18px;
    transform: translateY(-8px);
    opacity: 0; visibility: hidden;
    transition: opacity .18s ease, transform .18s ease, visibility .18s;
  }
  .nav-links.open{ opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-links li{ width: 100%; border-bottom: 1px solid var(--line-soft); }
  .nav-links a{ display: block; padding: 14px 2px; }
  .nav-phone{ display: none; }
  .nav-toggle{ display: inline-flex; }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--line);
}
.hero-grid{
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: center;
}
.hero h1{
  font-size: clamp(2.1rem, 4vw, 3.2rem);
  margin-bottom: .4em;
}
.hero h1 em{
  font-style: normal;
  color: var(--blue);
  position: relative;
}
.hero-actions{ display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.hero-art{ position: relative; }
.hero-art svg{ width: 100%; height: auto; }

@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-art{ order: -1; max-width: 420px; margin: 0 auto 8px; }
}

/* ---- stats strip ---- */
.stats-strip{
  border-bottom: 1px solid var(--line);
  background: var(--card-dim);
}
.stats-row{
  display: flex; flex-wrap: wrap;
  padding: 18px 0;
}
.stats-row .stat{
  flex: 1 1 200px;
  padding: 6px 22px;
  border-left: 1px solid var(--line);
  font-family: var(--font-mono);
}
.stats-row .stat:first-child{ border-left: none; }
.stat .num{ display: block; color: var(--navy); font-size: 1.05rem; font-weight: 600; }
.stat .label{ display: block; color: var(--ink-soft); font-size: .68rem; letter-spacing: .06em; text-transform: uppercase; margin-top: 3px; }

/* ==========================================================================
   SECTIONS
   ========================================================================== */
section{ padding: 76px 0; }
.section-head{
  max-width: 640px;
  margin: 0 0 44px;
}
.section-head.center{ margin-left: auto; margin-right: auto; text-align: center; }

.band-dim{ background: var(--card-dim); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.band-navy{ background: var(--navy); color: #fff; }
.band-navy h2, .band-navy h3{ color: #fff; }
.band-navy .eyebrow{ color: #9fc2ff; }
.band-navy .eyebrow::before{ background: var(--yellow); }
.band-navy p{ color: #c9d6ec; }

/* ---- catalog / product grid ---- */
.catalog-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.catalog-card{
  background: var(--card);
  padding: 26px 24px;
  display: flex; flex-direction: column; gap: 10px;
  position: relative;
}
.catalog-card .idx{
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--yellow-ink);
  background: #fdf1dc;
  border: 1px solid #f0d9a8;
  padding: 2px 8px;
  border-radius: 999px;
  align-self: flex-start;
}
.catalog-card h3{ font-size: 1.08rem; margin: 4px 0 0; }
.catalog-card p{ color: var(--ink-soft); font-size: .92rem; margin: 0; flex: 1; }
.catalog-card .tags{ display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.catalog-card .tags span{
  font-family: var(--font-mono);
  font-size: .66rem; letter-spacing: .03em;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  padding: 3px 7px;
  border-radius: 3px;
}

/* ---- product page cards with photos ---- */
.product-card{
  background: var(--card);
  border: 1px solid var(--line);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.product-photo{
  aspect-ratio: 4/3;
  background: var(--card-dim) center/cover no-repeat;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.product-photo .idx{
  position: absolute; top: 10px; left: 10px;
  font-family: var(--font-mono); font-size: .7rem;
  background: rgba(23,32,51,.82); color: #fff;
  padding: 3px 8px; border-radius: 3px; letter-spacing: .05em;
}
.product-card .body{ padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.product-card h3{ font-size: 1.1rem; margin: 0; }
.product-card p{ color: var(--ink-soft); font-size: .92rem; margin: 0; }
.spec-list{ list-style: none; margin: 8px 0 0; padding: 0; font-family: var(--font-mono); font-size: .78rem; color: var(--ink-soft); display: flex; flex-direction: column; gap: 4px; }
.spec-list li{ display: flex; gap: 8px; }
.spec-list li::before{ content: "—"; color: var(--red); }

.products-lead-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
}

/* ---- feature list (why nayvik) ---- */
.feature-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}
.feature{ border-top: 3px solid var(--red); padding-top: 16px; }
.feature:nth-child(2){ border-top-color: var(--blue); }
.feature:nth-child(3){ border-top-color: var(--yellow); }
.feature:nth-child(4){ border-top-color: var(--navy); }
.feature h3{ font-size: 1.05rem; }
.feature p{ color: var(--ink-soft); font-size: .93rem; }

/* ---- CTA band ---- */
.cta-band{
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.cta-band .contact-line{ display: flex; gap: 22px; flex-wrap: wrap; margin-top: 10px; font-family: var(--font-mono); font-size: .92rem; }
.cta-band .contact-line a{ color: #fff; border-bottom: 1px dotted #7fa8e6; }

/* ---- timeline (about) ---- */
.timeline{ border-left: 2px solid var(--line); padding-left: 26px; display: flex; flex-direction: column; gap: 30px; }
.timeline .entry{ position: relative; }
.timeline .entry::before{
  content: ""; position: absolute; left: -32px; top: 4px;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--card); border: 2px solid var(--blue);
}
.timeline .entry .when{ font-family: var(--font-mono); font-size: .74rem; color: var(--blue-dark); letter-spacing: .04em; text-transform: uppercase; }
.timeline .entry h3{ font-size: 1.02rem; margin: 4px 0 4px; }
.timeline .entry p{ color: var(--ink-soft); font-size: .92rem; margin: 0; }

/* ---- registration / certificate card ---- */
.reg-card{
  background: var(--card);
  border: 1px solid var(--line);
  padding: 30px 32px;
}
.reg-card dl{ display: grid; grid-template-columns: max-content 1fr; gap: 10px 20px; margin: 18px 0 0; }
.reg-card dt{ font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); align-self: start; padding-top: 3px; }
.reg-card dd{ margin: 0; font-size: .95rem; }

/* ---- leadership ---- */
.people-grid{ display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.person{ background: var(--card); border: 1px solid var(--line); padding: 24px; }
.person .mark{ width: 44px; height: 44px; border-radius: 50%; background: var(--navy); color: #fff; font-family: var(--font-display); font-weight: 700; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.person h3{ font-size: 1.02rem; margin-bottom: 2px; }
.person .role{ font-family: var(--font-mono); font-size: .74rem; color: var(--blue-dark); text-transform: uppercase; letter-spacing: .05em; }

/* ==========================================================================
   CONTACT PAGE
   ========================================================================== */
.contact-grid{ display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; }
@media (max-width: 900px){ .contact-grid{ grid-template-columns: 1fr; } }

.contact-card{ background: var(--card); border: 1px solid var(--line); padding: 26px 28px; margin-bottom: 20px; }
.contact-card h3{ font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-soft); font-family: var(--font-mono); margin-bottom: 10px; }
.contact-card .value{ font-size: 1.15rem; font-weight: 600; color: var(--navy); }
.contact-card .value a{ color: var(--navy); }

.map-frame{ border: 1px solid var(--line); background: var(--card-dim); }
.map-frame iframe{ width: 100%; height: 260px; border: 0; display: block; filter: grayscale(.15); }

.form-card{ background: var(--card); border: 1px solid var(--line); padding: 34px; }
.form-row{ display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
@media (max-width: 560px){ .form-row{ grid-template-columns: 1fr; } }
.field{ display: flex; flex-direction: column; gap: 6px; }
.field.full{ grid-column: 1 / -1; }
.field label{ font-size: .82rem; font-weight: 600; color: var(--ink); }
.field .req{ color: var(--red); }
.field input, .field select, .field textarea{
  font-family: var(--font-body);
  font-size: .96rem;
  padding: 12px 13px;
  border: 1.5px solid var(--line);
  border-radius: 3px;
  background: #fff;
  color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus{ outline: none; border-color: var(--blue); }
.field textarea{ resize: vertical; min-height: 120px; }
.form-note{ font-size: .8rem; color: var(--ink-soft); margin-top: 14px; }
#formStatus{ margin-top: 16px; font-size: .9rem; padding: 12px 14px; border-radius: 3px; display: none; }
#formStatus.ok{ display: block; background: #e7f4ea; color: #1e6b34; border: 1px solid #bfe3c7; }
#formStatus.err{ display: block; background: #fbe9e7; color: #a4291d; border: 1px solid #f3c4bd; }

/* ==========================================================================
   PAGE HEADER (interior pages)
   ========================================================================== */
.page-hero{ padding: 54px 0 44px; border-bottom: 1px solid var(--line); }
.page-hero .eyebrow{ margin-bottom: 10px; }
.page-hero h1{ font-size: clamp(1.9rem, 3.4vw, 2.7rem); max-width: 720px; }
.page-hero p{ max-width: 640px; }
.breadcrumb{ font-family: var(--font-mono); font-size: .74rem; color: var(--ink-soft); letter-spacing: .03em; margin-bottom: 18px; }
.breadcrumb a{ color: var(--ink-soft); }
.breadcrumb .sep{ margin: 0 6px; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{ background: #101827; color: #c6cfdd; padding: 56px 0 0; }
.footer-grid{ display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid #253248; }
@media (max-width: 800px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px){ .footer-grid{ grid-template-columns: 1fr; } }
.site-footer h4{ color: #fff; font-family: var(--font-mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; }
.site-footer .brand{ color: #fff; margin-bottom: 12px; }
.site-footer .brand small{ color: #8b97ab; }
.site-footer p{ color: #9aa6ba; font-size: .9rem; }
.site-footer ul{ list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.site-footer ul a{ color: #c6cfdd; font-size: .9rem; }
.site-footer ul a:hover{ color: #fff; }
.footer-bottom{ display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; padding: 20px 0; font-family: var(--font-mono); font-size: .74rem; color: #7684a0; }

/* ==========================================================================
   UTILITIES
   ========================================================================== */
.reveal{ opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
.reveal.in{ opacity: 1; transform: translateY(0); }
.text-center{ text-align: center; }
.mt-0{ margin-top: 0; }