/* ==========================================================================
   VSS TEXTILE PRIVATE LIMITED — Design Tokens & Global Styles
   Palette: Navy Ink / Loom Blue / Steel Blue / Sky Mist / Warm Thread Gold
   Type: Space Grotesk (display) + Source Sans 3 (body) + IBM Plex Mono (data)
   ========================================================================== */

:root{
  /* --- Color tokens --- */
  --navy-ink:      #0A2647;   /* deepest brand tone – header/footer */
  --loom-blue:     #123E6E;   /* primary brand blue */
  --steel-blue:    #2D6FA3;   /* secondary / links / icons */
  --sky-mist:      #EAF2FB;   /* light section background */
  --sky-mist-2:    #F5F9FD;   /* alt light background */
  --thread-gold:   #C99A3E;   /* accent – used sparingly for CTAs & marks */
  --thread-gold-dark: #A87D28;
  --ink:           #1E2A38;   /* body text */
  --ink-soft:      #51606F;   /* secondary text */
  --white:         #FFFFFF;
  --border:        #D6E3F0;
  --success:       #1E7A46;
  --error:         #B3261E;

  /* --- Type --- */
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* --- Scale --- */
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --step-1: clamp(1.15rem, 1.08rem + 0.35vw, 1.3rem);
  --step-2: clamp(1.4rem, 1.28rem + 0.6vw, 1.75rem);
  --step-3: clamp(1.75rem, 1.5rem + 1.2vw, 2.4rem);
  --step-4: clamp(2.2rem, 1.8rem + 2vw, 3.4rem);

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius-s: 4px;
  --radius-m: 8px;
  --radius-l: 16px;
  --shadow-1: 0 2px 8px rgba(10,38,71,0.08);
  --shadow-2: 0 12px 32px rgba(10,38,71,0.14);
  --max-width: 1200px;
}

/* --- Reset --- */
*, *::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;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  font-size: var(--step-0);
  line-height: 1.6;
}
img{ max-width:100%; display:block; }
a{ color: var(--steel-blue); text-decoration: none; }
a:hover{ text-decoration: underline; }
h1,h2,h3,h4{ font-family: var(--font-display); color: var(--navy-ink); line-height:1.15; margin: 0 0 var(--space-2); }
h1{ font-size: var(--step-4); }
h2{ font-size: var(--step-3); }
h3{ font-size: var(--step-2); }
h4{ font-size: var(--step-1); }
p{ margin: 0 0 var(--space-2); color: var(--ink); }
ul{ margin:0; padding:0; list-style:none; }
.container{ max-width: var(--max-width); margin-inline:auto; padding-inline: var(--space-3); }
section{ padding-block: var(--space-6); }
.section-tight{ padding-block: var(--space-4); }
.bg-mist{ background: var(--sky-mist); }
.bg-navy{ background: var(--navy-ink); color: var(--white); }
.bg-navy h1, .bg-navy h2, .bg-navy h3, .bg-navy p{ color: var(--white); }

/* --- Focus visibility (a11y) --- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline: 3px solid var(--thread-gold);
  outline-offset: 2px;
}
.skip-link{
  position:absolute; left:-999px; top:0; background:var(--thread-gold); color:var(--navy-ink);
  padding: 0.75rem 1.25rem; z-index:1000; font-weight:600; border-radius: 0 0 var(--radius-s) 0;
}
.skip-link:focus{ left:0; }

/* --- Eyebrow / labels --- */
.eyebrow{
  display:inline-flex; align-items:center; gap:0.5rem;
  font-family: var(--font-mono); font-size:0.78rem; letter-spacing:0.12em; text-transform:uppercase;
  color: var(--thread-gold-dark); font-weight:600; margin-bottom: var(--space-2);
}
.eyebrow::before{ content:""; width:22px; height:2px; background: var(--thread-gold); display:inline-block; }

/* --- Buttons --- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:0.5rem;
  font-family: var(--font-display); font-weight:600; font-size:1rem;
  padding: 0.85rem 1.6rem; border-radius: var(--radius-s); border:2px solid transparent;
  cursor:pointer; transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
  text-decoration:none;
}
.btn:hover{ text-decoration:none; transform: translateY(-2px); }
.btn-primary{ background: var(--thread-gold); color: var(--navy-ink); }
.btn-primary:hover{ background: var(--thread-gold-dark); }
.btn-outline{ background:transparent; border-color: var(--white); color: var(--white); }
.btn-outline:hover{ background: var(--white); color: var(--navy-ink); }
.btn-outline-dark{ background:transparent; border-color: var(--loom-blue); color: var(--loom-blue); }
.btn-outline-dark:hover{ background: var(--loom-blue); color: var(--white); }

/* ==========================================================================
   Weave motif — signature element (interlaced warp/weft rule)
   ========================================================================== */
.weave-rule{
  height: 14px; width:100%; margin-block: var(--space-3);
  background-image:
    repeating-linear-gradient(90deg, var(--thread-gold) 0 10px, transparent 10px 20px);
  background-position: 0 0, 0 6px;
  background-size: 20px 4px;
  opacity:0.9;
}
.weave-bg{
  position:absolute; inset:0; pointer-events:none; opacity:0.10;
  background-image: repeating-linear-gradient(0deg, var(--white) 0 2px, transparent 2px 14px),
                     repeating-linear-gradient(90deg, var(--white) 0 2px, transparent 2px 14px);
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position: sticky; top:0; z-index:500;
  background: var(--navy-ink);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between; gap: var(--space-3);
  padding-block: 0.85rem;
}
.brand{ display:flex; align-items:center; gap:0.65rem; color:var(--white); font-family: var(--font-display); font-weight:700; font-size:1.15rem; }
.brand:hover{ text-decoration:none; }
.brand-mark{
  width:38px; height:38px; border-radius:50%;
  background: conic-gradient(from 45deg, var(--thread-gold), var(--steel-blue), var(--thread-gold));
  display:grid; place-items:center; color:var(--navy-ink); font-family:var(--font-mono); font-weight:700; font-size:0.85rem;
  flex-shrink:0;
}
.brand-text small{ display:block; font-family: var(--font-body); font-weight:400; font-size:0.65rem; letter-spacing:0.08em; color: var(--sky-mist); text-transform:uppercase; }

.main-nav ul{ display:flex; gap: var(--space-3); align-items:center; }
.main-nav a{ color: var(--white); font-weight:500; font-size:0.95rem; padding: 0.4rem 0.1rem; border-bottom:2px solid transparent; }
.main-nav a:hover, .main-nav a:focus-visible{ text-decoration:none; border-bottom-color: var(--thread-gold); }
.main-nav a[aria-current="page"]{ border-bottom-color: var(--thread-gold); color: var(--thread-gold); }

.header-cta{ display:flex; align-items:center; gap: var(--space-2); }
.nav-toggle{
  display:none; background:transparent; border:1px solid rgba(255,255,255,0.35); border-radius: var(--radius-s);
  width:42px; height:38px; color:var(--white); font-size:1.3rem; cursor:pointer;
}

@media (max-width: 880px){
  .nav-toggle{ display:block; }
  .main-nav{
    position:absolute; top:100%; left:0; right:0; background: var(--navy-ink);
    max-height:0; overflow:hidden; transition: max-height .3s ease;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  .main-nav.open{ max-height: 480px; }
  .main-nav ul{ flex-direction:column; align-items:flex-start; padding: var(--space-2) var(--space-3) var(--space-3); gap: var(--space-1); }
  .header-cta .btn-primary{ display:none; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative; overflow:hidden;
  background: linear-gradient(135deg, var(--navy-ink) 0%, var(--loom-blue) 65%, var(--steel-blue) 100%);
  color: var(--white);
  padding-block: var(--space-6);
}
.hero .container{ position:relative; z-index:2; display:grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-5); align-items:center; }
.hero h1{ color:var(--white); margin-bottom: var(--space-2); }
.hero-tagline{ font-family: var(--font-display); font-size: var(--step-1); color: var(--thread-gold); margin-bottom: var(--space-2); }
.hero-lede{ font-size: 1.1rem; color: var(--sky-mist); max-width: 46ch; }
.hero-actions{ display:flex; gap: var(--space-2); margin-top: var(--space-3); flex-wrap:wrap; }
.hero-stats{ display:grid; grid-template-columns: repeat(3,1fr); gap: var(--space-2); margin-top: var(--space-5); }
.hero-stat{ border-left:2px solid var(--thread-gold); padding-left:0.85rem; }
.hero-stat strong{ display:block; font-family: var(--font-mono); font-size: var(--step-2); color:var(--white); }
.hero-stat span{ font-size:0.85rem; color: var(--sky-mist); }
.hero-visual{
  position:relative; border-radius: var(--radius-l); overflow:hidden; box-shadow: var(--shadow-2);
  border: 1px solid rgba(255,255,255,0.15);
}
.hero-visual img{ width:100%; height:100%; object-fit:cover; aspect-ratio: 4/3; }
.hero-visual figcaption{
  position:absolute; bottom:0; left:0; right:0; background: rgba(10,38,71,0.82);
  color: var(--sky-mist); font-family: var(--font-mono); font-size:0.78rem; padding: 0.6rem 1rem;
}
@media (max-width: 900px){
  .hero .container{ grid-template-columns:1fr; }
  .hero-stats{ grid-template-columns: repeat(3,1fr); }
}

/* ==========================================================================
   Page header (interior pages)
   ========================================================================== */
.page-header{
  background: var(--navy-ink); color: var(--white); padding-block: var(--space-5);
  position:relative; overflow:hidden;
}
.page-header .container{ position:relative; z-index:2; }
.page-header h1{ color:var(--white); }
.breadcrumb{ font-family: var(--font-mono); font-size:0.8rem; color: var(--sky-mist); opacity:0.8; margin-bottom: var(--space-2); }
.breadcrumb a{ color: var(--sky-mist); }

/* ==========================================================================
   Cards / Grids
   ========================================================================== */
.grid{ display:grid; gap: var(--space-3); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-4{ grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px){ .grid-3, .grid-4{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 620px){ .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr; } }

.card{
  background: var(--white); border:1px solid var(--border); border-radius: var(--radius-m);
  padding: var(--space-3); box-shadow: var(--shadow-1); transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-2); }
.card-icon{
  width:52px; height:52px; border-radius: var(--radius-m); background: var(--sky-mist);
  color: var(--steel-blue); display:grid; place-items:center; margin-bottom: var(--space-2); font-size:1.4rem;
}
.card h3{ font-size:1.15rem; margin-bottom:0.4rem; }
.card p{ color: var(--ink-soft); font-size:0.95rem; margin-bottom:0; }

/* Product card specific */
.product-card{ display:flex; flex-direction:column; }
.product-card .tag-row{ display:flex; flex-wrap:wrap; gap:0.4rem; margin-top:0.75rem; }
.tag{
  font-family: var(--font-mono); font-size:0.72rem; background: var(--sky-mist); color: var(--loom-blue);
  padding: 0.25rem 0.55rem; border-radius: 999px; border:1px solid var(--border);
}

/* Trust strip */
.trust-strip{ display:flex; flex-wrap:wrap; align-items:center; justify-content:space-around; gap: var(--space-3); padding-block: var(--space-3); }
.trust-strip img{ height:56px; width:auto; filter: grayscale(15%); }

/* Stats bar */
.stat-bar{ display:grid; grid-template-columns: repeat(4,1fr); gap: var(--space-3); text-align:center; }
.stat-bar .stat strong{ display:block; font-family: var(--font-mono); font-size: var(--step-2); color: var(--loom-blue); }
.stat-bar .stat span{ color: var(--ink-soft); font-size:0.9rem; }
@media (max-width:700px){ .stat-bar{ grid-template-columns: repeat(2,1fr); } }

/* Table */
.data-table{ width:100%; border-collapse: collapse; font-family: var(--font-body); }
.data-table caption{ text-align:left; font-weight:600; margin-bottom: var(--space-2); color: var(--navy-ink); }
.data-table th, .data-table td{ text-align:left; padding: 0.85rem 1rem; border-bottom:1px solid var(--border); }
.data-table th{ font-family: var(--font-display); background: var(--sky-mist); color: var(--navy-ink); }
.data-table td.num, .data-table th.num{ font-family: var(--font-mono); text-align:right; }
.data-table tfoot td{ font-weight:700; font-family: var(--font-mono); border-top:2px solid var(--loom-blue); }

/* Timeline (About / News) */
.timeline{ border-left:2px solid var(--border); padding-left: var(--space-3); display:flex; flex-direction:column; gap: var(--space-4); }
.timeline-item{ position:relative; }
.timeline-item::before{
  content:""; position:absolute; left:-1.62rem; top:0.3rem; width:12px; height:12px; border-radius:50%;
  background: var(--thread-gold); border:2px solid var(--white); box-shadow:0 0 0 2px var(--loom-blue);
}
.timeline-date{ font-family: var(--font-mono); color: var(--steel-blue); font-size:0.85rem; }

/* Leadership */
.leader-card{ display:flex; gap: var(--space-2); align-items:flex-start; }
.leader-avatar{
  width:64px; height:64px; border-radius:50%; background: var(--loom-blue); color:var(--white);
  display:grid; place-items:center; font-family: var(--font-display); font-weight:700; font-size:1.2rem; flex-shrink:0;
}

/* Certification card */
.cert-card{ text-align:center; }
.cert-card img{ height:70px; width:auto; margin:0 auto var(--space-2); object-fit:contain; }
.cert-card .cert-badge-text{
  height:70px; display:flex; align-items:center; justify-content:center; margin-bottom: var(--space-2);
  font-family: var(--font-display); font-weight:700; color: var(--steel-blue); border:2px dashed var(--border); border-radius: var(--radius-m);
}

/* Gallery */
.gallery-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-2); }
@media (max-width:800px){ .gallery-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width:520px){ .gallery-grid{ grid-template-columns: 1fr; } }
.gallery-item{
  position:relative; border-radius: var(--radius-m); overflow:hidden; cursor:pointer; border:0; padding:0;
  aspect-ratio: 4/3; background: var(--sky-mist);
}
.gallery-item img{ width:100%; height:100%; object-fit:cover; transition: transform .35s ease; }
.gallery-item:hover img{ transform: scale(1.06); }
.gallery-item figcaption{
  position:absolute; bottom:0; left:0; right:0; background: linear-gradient(0deg, rgba(10,38,71,0.88), transparent);
  color:var(--white); padding: 0.9rem 0.9rem 0.6rem; font-size:0.85rem; text-align:left;
}

.lightbox{
  position:fixed; inset:0; background: rgba(10,38,71,0.92); z-index:1000; display:none;
  align-items:center; justify-content:center; padding: var(--space-3);
}
.lightbox.open{ display:flex; }
.lightbox-content{ max-width: min(900px, 92vw); max-height:86vh; }
.lightbox-content img{ max-height:70vh; margin:0 auto; border-radius: var(--radius-m); }
.lightbox-caption{ color: var(--white); text-align:center; margin-top: var(--space-2); font-family: var(--font-mono); font-size:0.9rem; }
.lightbox-close{
  position:absolute; top:1.2rem; right:1.5rem; background:transparent; border:none; color:var(--white);
  font-size:2rem; cursor:pointer; line-height:1;
}

/* Forms */
.form-grid{ display:grid; gap: var(--space-2); }
label{ display:block; font-weight:600; margin-bottom:0.35rem; font-size:0.92rem; color: var(--navy-ink); }
.req{ color: var(--error); }
input, textarea, select{
  width:100%; padding:0.75rem 0.9rem; border:1px solid var(--border); border-radius: var(--radius-s);
  font-family: var(--font-body); font-size:1rem; background:var(--white); color:var(--ink);
}
textarea{ resize: vertical; min-height:120px; }
.field-error{ color: var(--error); font-size:0.85rem; margin-top:0.3rem; display:none; }
.field-error.show{ display:block; }
input[aria-invalid="true"], textarea[aria-invalid="true"]{ border-color: var(--error); }
.form-msg{ padding: 0.9rem 1rem; border-radius: var(--radius-s); margin-bottom: var(--space-2); font-weight:600; display:none; }
.form-msg.show{ display:block; }
.form-msg.success{ background:#E6F4EC; color: var(--success); display:block; }
.form-msg.error{ background:#FBE8E7; color: var(--error); display:block; }

/* Contact info + map */
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); align-items:start; }
@media (max-width:860px){ .contact-grid{ grid-template-columns:1fr; } }
.info-list{ display:flex; flex-direction:column; gap: var(--space-2); }
.info-list li{ display:flex; gap:0.75rem; align-items:flex-start; }
.info-icon{ width:38px; height:38px; border-radius:50%; background: var(--sky-mist); color: var(--steel-blue); display:grid; place-items:center; flex-shrink:0; }
.map-frame{ border:1px solid var(--border); border-radius: var(--radius-m); overflow:hidden; aspect-ratio:16/10; width:100%; }
.map-frame iframe{ width:100%; height:100%; border:0; }

/* CTA band */
.cta-band{ background: linear-gradient(120deg, var(--loom-blue), var(--navy-ink)); color:var(--white); text-align:center; padding-block: var(--space-5); }
.cta-band h2{ color:var(--white); }
.cta-band .btn-outline{ margin-left:0.5rem; }

/* Footer */
.site-footer{ background: var(--navy-ink); color: var(--sky-mist); padding-top: var(--space-5); }
.footer-grid{ display:grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr; gap: var(--space-4); padding-bottom: var(--space-4); border-bottom:1px solid rgba(255,255,255,0.1); }
@media (max-width:860px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width:520px){ .footer-grid{ grid-template-columns: 1fr; } }
.site-footer h4{ color:var(--white); font-size:1rem; }
.site-footer a{ color: var(--sky-mist); }
.footer-links li{ margin-bottom:0.5rem; }
.newsletter-form{ display:flex; gap:0.5rem; margin-top:0.75rem; }
.newsletter-form input{ flex:1; }
.social-row{ display:flex; gap:0.6rem; margin-top: var(--space-2); }
.social-row a{
  width:38px; height:38px; border-radius:50%; border:1px solid rgba(255,255,255,0.3); display:grid; place-items:center;
  color:var(--white); font-family: var(--font-mono); font-size:0.85rem;
}
.social-row a:hover{ background: var(--thread-gold); border-color: var(--thread-gold); color: var(--navy-ink); text-decoration:none; }
.footer-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:0.5rem; padding-block: var(--space-3); font-size:0.85rem; opacity:0.75; }

/* Reveal animation on scroll */
.reveal{ opacity:0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform: translateY(0); }

/* Utility */
.text-center{ text-align:center; }
.mt-0{ margin-top:0; }
.mb-0{ margin-bottom:0; }
.max-prose{ max-width: 68ch; }
.visually-hidden{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden;
  clip:rect(0,0,0,0); white-space:nowrap; border:0;
}