/* ============================================================
   ELEGANT CHEMICAL ENTP. PVT. LTD — DESIGN SYSTEM
   Concept: the certificate of analysis / batch record is this
   industry's native document. The site borrows its grammar —
   stamped headers, monospace data rows, ruled tables, signature
   blocks — as the visual signature throughout.
   ============================================================ */

:root {
  --ink-navy: #0F2438;
  --slate: #1F3F5C;
  --paper: #F6F5F0;
  --paper-warm: #EFEDE4;
  --steel: #5B6770;
  --steel-light: #8B96A0;
  --amber: #B8843D;
  --amber-deep: #96692B;
  --clinical-green: #3F6B4F;
  --line: #D7D2C4;
  --line-dark: #C3BCA9;
  --card-bg: #FFFFFF;
  --red-flag: #A23E3E;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --max-w: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink-navy);
  margin: 0 0 0.4em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); line-height: 1.03; font-weight: 600; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 600; }
h3 { font-size: 1.25rem; font-weight: 600; }

p { color: var(--steel); margin: 0 0 1em; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber-deep);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--amber-deep);
  display: inline-block;
}

/* ---------- Focus ---------- */
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ---------- Header / stamped record strip ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--ink-navy);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.record-strip {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.55);
  background: #0A1A2A;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.record-strip .wrap {
  display: flex;
  justify-content: space-between;
  padding-top: 7px;
  padding-bottom: 7px;
  flex-wrap: wrap;
  gap: 6px 18px;
}
.record-strip span { white-space: nowrap; }

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  color: #fff;
}
.brand .logo-plate {
  background: #fff;
  padding: 7px 10px;
  display: flex;
  align-items: center;
  border: 1px solid rgba(255,255,255,0.15);
}
.brand .logo-plate img {
  height: 30px;
  width: auto;
  display: block;
}
.brand .name {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  color: var(--steel-light);
  text-transform: uppercase;
  line-height: 1.4;
}
.brand .name strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  color: #fff;
  text-transform: none;
}

nav.primary { display: flex; gap: 2px; }
nav.primary a {
  color: rgba(255,255,255,0.72);
  font-size: 0.86rem;
  padding: 9px 14px;
  border-radius: 3px;
  transition: color 0.15s, background 0.15s;
}
nav.primary a:hover { color: #fff; background: rgba(255,255,255,0.06); }
nav.primary a.active { color: #fff; background: rgba(184,132,61,0.18); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  padding: 7px 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  cursor: pointer;
}

@media (max-width: 860px) {
  nav.primary {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--ink-navy);
    flex-direction: column;
    padding: 8px 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  nav.primary.open { display: flex; }
  nav.primary a { padding: 13px 14px; font-size: 0.92rem; }
  .nav-toggle { display: block; padding: 11px 16px; font-size: 0.82rem; }
  .record-strip .wrap { font-size: 0.62rem; }
}

@media (max-width: 480px) {
  .wrap { padding: 0 20px; }
  .nav-row { padding: 14px 20px; }
  section { padding: 52px 0; }
  section.tight { padding: 34px 0; }
  .record-strip .wrap { font-size: 0.56rem; gap: 4px 12px; }
  .meta-strip { font-size: 0.7rem; }
  .meta-strip .cell { padding-right: 16px; margin-right: 16px; }
}

/* ---------- Hero: document header ---------- */
.doc-hero {
  background: var(--ink-navy);
  color: #fff;
  padding: 76px 0 64px;
  position: relative;
  overflow: hidden;
}
.doc-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(180deg, transparent, transparent 27px, rgba(255,255,255,0.025) 28px);
  pointer-events: none;
}
.doc-hero .wrap { position: relative; }
.doc-title-block {
  border-left: 3px solid var(--amber);
  padding-left: 24px;
  max-width: 760px;
}
.doc-hero h1 { color: #fff; }
.doc-hero .sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.72);
  max-width: 620px;
  margin-top: 14px;
}
.meta-strip {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  border-top: 1px solid rgba(255,255,255,0.15);
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.meta-strip .cell {
  padding: 12px 22px 12px 0;
  margin-right: 22px;
  border-right: 1px solid rgba(255,255,255,0.15);
}
.meta-strip .cell:last-child { border-right: none; }
.meta-strip .k {
  display: block;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.62rem;
  margin-bottom: 4px;
}
.meta-strip .v { color: #fff; }

/* ---------- Sub-page hero (smaller) ---------- */
.page-hero {
  background: var(--ink-navy);
  color: #fff;
  padding: 56px 0 46px;
  position: relative;
}
.page-hero .doc-title-block { max-width: 720px; }
.page-hero h1 { color: #fff; }
.page-hero .sub { color: rgba(255,255,255,0.7); max-width: 620px; margin-top: 12px; }

/* ---------- Sections ---------- */
section { padding: 72px 0; }
section.tight { padding: 48px 0; }
.section-alt { background: var(--paper-warm); }
.section-navy { background: var(--ink-navy); color: #fff; }
.section-navy p { color: rgba(255,255,255,0.68); }
.section-navy h2 { color: #fff; }

.rule {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* ---------- Spec card (signature component) ---------- */
.spec-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  position: relative;
}
.spec-card .spec-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--paper-warm);
}
.spec-card .spec-head .label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
}
.spec-card .spec-head .tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--clinical-green);
  border: 1px solid var(--clinical-green);
  padding: 2px 7px;
}
.spec-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 20px;
  border-bottom: 1px dashed var(--line);
  font-size: 0.9rem;
}
.spec-row:last-child { border-bottom: none; }
.spec-row .k { color: var(--steel); }
.spec-row .v { font-family: var(--font-mono); color: var(--ink-navy); text-align: right; }

/* ---------- Grid utilities ---------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media (max-width: 860px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ---------- Capability / value cards ---------- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  padding: 26px 24px;
}
.card .num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--amber-deep);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  display: block;
}
.card h3 { margin-bottom: 8px; }
.card p { margin-bottom: 0; font-size: 0.92rem; }

/* ---------- Stamp / certification badge ---------- */
.stamp-row { display: flex; gap: 18px; flex-wrap: wrap; }
.stamp {
  border: 1.5px solid var(--clinical-green);
  color: var(--clinical-green);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 10px 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transform: rotate(-1deg);
}
.stamp .sn { font-size: 0.6rem; letter-spacing: 0.1em; opacity: 0.75; }
.stamp .sv { font-weight: 600; font-size: 0.86rem; }

/* ---------- Table (product / capability lists) ---------- */
table.record-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
table.record-table th, table.record-table td {
  text-align: left;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
}
table.record-table th {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--steel);
  background: var(--paper-warm);
  border-top: 1px solid var(--line);
}
table.record-table td.mono { font-family: var(--font-mono); font-size: 0.85rem; }

/* ---------- Timeline (used sparingly, real sequence only) ---------- */
.timeline { border-left: 2px solid var(--line-dark); padding-left: 28px; display: flex; flex-direction: column; gap: 30px; }
.timeline .t-item { position: relative; }
.timeline .t-item::before {
  content: '';
  position: absolute;
  left: -33px; top: 4px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--amber);
  border: 2px solid var(--paper);
  box-shadow: 0 0 0 2px var(--amber);
}
.timeline .yr { font-family: var(--font-mono); font-size: 0.78rem; color: var(--amber-deep); margin-bottom: 3px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 12px 22px;
  border: 1px solid var(--ink-navy);
  background: var(--ink-navy);
  color: #fff;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s;
}
.btn:hover { background: var(--slate); }
.btn.ghost {
  background: transparent;
  color: var(--ink-navy);
  border-color: var(--ink-navy);
}
.btn.ghost:hover { background: rgba(15,36,56,0.06); }
.btn.on-dark { border-color: var(--amber); background: var(--amber); color: var(--ink-navy); font-weight: 600; }
.btn.on-dark:hover { background: #C89452; }

/* ---------- Footer ---------- */
footer.site-footer {
  background: var(--ink-navy);
  color: rgba(255,255,255,0.6);
  padding: 52px 0 26px;
  margin-top: 40px;
}
footer.site-footer h4 { color: #fff; font-size: 0.95rem; }
footer.site-footer .grid-4 { gap: 32px; }
footer.site-footer a { color: rgba(255,255,255,0.6); font-size: 0.88rem; display: block; margin-bottom: 8px; }
footer.site-footer a:hover { color: #fff; }
footer.site-footer p { color: rgba(255,255,255,0.55); font-size: 0.88rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 36px;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: rgba(255,255,255,0.4);
}

/* ---------- Misc ---------- */
.lede { font-size: 1.08rem; color: var(--steel); max-width: 700px; }
.two-col-text { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
@media (max-width: 860px) { .two-col-text { grid-template-columns: 1fr; } }
.pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  padding: 3px 9px;
  border: 1px solid var(--line-dark);
  color: var(--steel);
  text-transform: uppercase;
}
.divider-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 34px;
}
.divider-label .rule { flex: 1; }

/* ---------- Photography components ---------- */
.photo-band {
  position: relative;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}
.photo-band img {
  width: 100%;
  height: clamp(260px, 42vw, 460px);
  object-fit: cover;
  display: block;
  filter: saturate(0.94) contrast(1.02);
}
.photo-band .caption-strip {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: rgba(10,26,42,0.86);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 11px 32px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px 20px;
}
.photo-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  line-height: 0;
}
.photo-grid-2 img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  display: block;
}
@media (max-width: 700px) {
  .photo-grid-2 { grid-template-columns: 1fr; }
  .photo-grid-2 img { height: 220px; }
}
.photo-card {
  border: 1px solid var(--line);
  background: var(--card-bg);
  line-height: 0;
}
.photo-card img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  display: block;
}
.photo-card .cap {
  line-height: 1.4;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  padding: 9px 13px;
  color: var(--steel);
  border-top: 1px solid var(--line);
  text-transform: uppercase;
}
.photo-trio {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
.photo-trio .photo-card { width: 100%; max-width: 280px; flex: 1 1 240px; }
.icon-plate {
  border: 1px solid var(--line);
  background: var(--card-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 150px;
}
.icon-plate svg { width: 62px; height: 62px; }

/* ---------- Big statement / pull-quote ---------- */
.big-quote {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  color: var(--ink-navy);
  font-weight: 600;
  max-width: 820px;
  line-height: 1.35;
  margin: 0;
}

/* ---------- Client wordmark badges ---------- */
.badge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 780px) {
  .badge-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .badge-grid { grid-template-columns: 1fr; }
}
.client-badge {
  border: 1px solid var(--line);
  background: var(--card-bg);
  padding: 22px 18px;
  border-top: 4px solid var(--badge-color, var(--amber));
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.client-badge .bname {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink-navy);
  letter-spacing: -0.01em;
}
.client-badge .bcat {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--steel);
}