/* ==========================================================================
   Ayush Enterprises — Design System
   Industrial + Premium + Minimal
   ========================================================================== */

:root {
  --color-dark: #1c1c1c;
  --color-white: #ffffff;
  --color-grey-light: #f5f5f5;
  --color-accent: #f97316;
  --color-secondary: #16a34a;
  --color-border: #d9d9d9;
  --color-text-muted: #5c5c5c;

  --font-heading: 'Roboto', Arial, sans-serif;
  --font-body: 'Roboto', Arial, sans-serif;

  --container-width: 1240px;
  --radius: 4px;
  --transition: 0.2s ease;

  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 1rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.75rem); }

p {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.highlight {
  color: var(--color-accent);
}

section {
  padding: 80px 0;
}

@media (max-width: 768px) {
  section { padding: 48px 0; }
}

.section-dark {
  background: var(--color-dark);
  color: var(--color-white);
}

.section-dark p { color: #b3b3b3; }
.section-dark h1, .section-dark h2, .section-dark h3 { color: var(--color-white); }

.section-grey {
  background: var(--color-grey-light);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--color-accent);
  color: var(--color-dark);
}
.btn-primary:hover { background: #ea580c; }

.btn-outline {
  background: transparent;
  border-color: var(--color-dark);
  color: var(--color-dark);
}
.btn-outline:hover { background: var(--color-dark); color: var(--color-white); }

.section-dark .btn-outline {
  border-color: var(--color-white);
  color: var(--color-white);
}
.section-dark .btn-outline:hover {
  background: var(--color-white);
  color: var(--color-dark);
}

.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; }

/* ---------- Header / Nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 190;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.brand span { display: block; color: var(--color-accent); }
.brand-logo { height: 42px; width: auto; display: block; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav > ul {
  display: flex;
  list-style: none;
  gap: 28px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 0;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.main-nav a:hover::after,
.main-nav a.active::after { transform: scaleX(1); }

.has-dropdown { position: relative; }
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  min-width: 220px;
  padding: 8px 0;
  box-shadow: 0 12px 24px rgba(28,28,28,0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown li { list-style: none; }
.dropdown a {
  display: block;
  padding: 10px 18px;
  font-size: 0.85rem;
  text-transform: none;
  font-weight: 600;
}
.dropdown a:hover { background: var(--color-grey-light); }

.nav-cta { display: flex; align-items: center; gap: 16px; }

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--color-dark);
  margin: 5px 0;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 960px) {
  .main-nav { display: none; }
  .hamburger { display: block; }
  .nav-cta .btn-primary { display: none; }

  .main-nav.mobile-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: fixed;
    top: 76px;
    left: 0; right: 0; bottom: 0;
    background: var(--color-white);
    padding: 24px;
    overflow-y: auto;
    gap: 16px;
  }
  .main-nav.mobile-open > ul {
    flex-direction: column;
    gap: 0;
  }
  .main-nav.mobile-open a {
    display: block;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 1rem;
  }
  .main-nav.mobile-open .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    border: none;
    box-shadow: none;
    padding-left: 12px;
    display: none;
  }
  .main-nav.mobile-open .has-dropdown.open .dropdown { display: block; }
  .main-nav.mobile-open .nav-cta {
    flex-direction: column;
    align-items: stretch;
    margin-top: 8px;
  }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 82vh;
  display: flex;
  align-items: flex-end;
  color: var(--color-white);
  background: linear-gradient(180deg, rgba(28,28,28,0.55) 0%, rgba(28,28,28,0.85) 100%), var(--color-dark);
  background-size: cover;
  background-position: center;
  padding-bottom: 64px;
}

@media (max-width: 768px) {
  .hero {
    min-height: 0;
    padding-top: 48px;
    padding-bottom: 40px;
  }
}

.hero-inner { max-width: 760px; }

.hero .eyebrow { color: var(--color-accent); }

.hero p.lead {
  font-size: 1.15rem;
  color: #e6e6e6;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.hero-sm {
  min-height: 40vh;
  align-items: center;
  padding: 96px 0 48px;
}

@media (max-width: 768px) {
  .hero-sm {
    min-height: 0;
    padding: 32px 0;
  }
}

/* ---------- Grids & Cards ---------- */

.grid {
  display: grid;
  gap: 24px;
}
.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: 960px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(28,28,28,0.08);
}

.card-media {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--color-dark), #3a3a3a);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-align: center;
  padding: 16px;
  position: relative;
  overflow: hidden;
}
.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.card-media:has(img) { padding: 0; background: none; }

.card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.card-body h3 { margin-bottom: 4px; text-transform: none; }

.card-link {
  margin-top: auto;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-dark);
  padding-top: 8px;
}
.card-link::after { content: ' →'; }

/* Editorial big card (products/services) */
.card-editorial {
  border: none;
  background: var(--color-grey-light);
}
.card-editorial .card-media { aspect-ratio: 16 / 10; }

/* Dark service card */
.card-dark {
  background: var(--color-dark);
  border: 1px solid #3a3a3a;
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 32px 24px;
}
.card-dark h3 { color: var(--color-white); }
.card-dark p { color: #a8a8a8; }

/* ---------- Stats / capability strips ---------- */

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-strip .stat-number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-accent);
}
.stat-strip .stat-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}
.section-dark .stat-label { color: #b3b3b3; }

@media (max-width: 768px) {
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Machinery / Technology cards ---------- */

.machine-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--color-white);
  overflow: hidden;
}
.machine-card-img {
  display: block;
  width: calc(100% + 56px);
  height: 160px;
  object-fit: cover;
  margin: -28px -28px 20px;
}
.machine-card .machine-step {
  display: flex;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.machine-card .machine-step span:not(:last-child)::after { content: '→'; margin-left: 8px; color: var(--color-accent); }

/* ---------- Process flow ---------- */

.process-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.process-step {
  background: var(--color-white);
  border: 2px solid var(--color-dark);
  padding: 12px 32px;
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
}
.process-arrow { color: var(--color-accent); font-size: 1.4rem; line-height: 1; }

/* ---------- Lists ---------- */

.check-list { list-style: none; margin: 0 0 1.5rem; padding: 0; }
.check-list li {
  padding-left: 28px;
  position: relative;
  margin-bottom: 10px;
  color: var(--color-dark);
}
.check-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 6px;
  width: 14px; height: 14px;
  background: var(--color-secondary);
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--color-dark);
  color: #cfcfcf;
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid #3a3a3a;
}
.footer-grid > div { min-width: 0; }
.footer-grid a { overflow-wrap: break-word; word-break: break-word; }
.footer-grid h4 {
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: none;
  letter-spacing: normal;
  margin-bottom: 20px;
}
.footer-grid p { color: #b3b3b3; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 10px; }
.footer-grid a { color: #cfcfcf; font-size: 0.9rem; }
.footer-grid a:hover { color: var(--color-accent); }

.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}
.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid #3a3a3a;
  color: #cfcfcf;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-dark);
}
.footer-social svg { width: 22px; height: 22px; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 0.8rem;
  color: #8a8a8a;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ---------- Forms ---------- */

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
}

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.field-full { grid-column: 1 / -1; }
.field label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-dark);
}
.field input,
.field select,
.field textarea {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--color-white);
  color: var(--color-dark);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}
.field textarea { resize: vertical; min-height: 120px; }
.field small { color: var(--color-text-muted); font-size: 0.78rem; }
.field .error-text { color: #c0392b; font-size: 0.78rem; }
.field.has-error input,
.field.has-error select,
.field.has-error textarea { border-color: #c0392b; }

.form-note {
  padding: 16px 18px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-bottom: 20px;
  display: none;
}
.form-note.show { display: block; }
.form-note.success { background: #e7f6ec; color: #1e6b34; border: 1px solid #b7e4c7; }
.form-note.error { background: #fdecea; color: #a4302a; border: 1px solid #f5c6c2; }

/* ---------- Gallery ---------- */

.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.gallery-filters button {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 8px 20px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.gallery-filters button.active,
.gallery-filters button:hover {
  background: var(--color-dark);
  color: var(--color-white);
}

.masonry {
  columns: 3 260px;
  column-gap: 20px;
}
.masonry-item {
  break-inside: avoid;
  margin-bottom: 20px;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  position: relative;
}
.masonry-item img { width: 100%; display: block; transition: transform var(--transition); }
.masonry-item:hover img { transform: scale(1.04); }
.masonry-item .masonry-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  background: linear-gradient(0deg, rgba(28,28,28,0.75), transparent);
  color: var(--color-white);
  padding: 24px 14px 12px;
  font-size: 0.85rem;
  font-weight: 700;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(28,28,28,0.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 24px;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 90vw; max-height: 85vh; border-radius: var(--radius); }
.lightbox-close {
  position: absolute;
  top: 24px; right: 24px;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

/* ---------- Horizontal scroll (mobile product/machine sliders) ---------- */

.scroll-row {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}
.scroll-row > * {
  scroll-snap-align: start;
  flex: 0 0 78%;
}
@media (min-width: 769px) {
  .scroll-row { overflow: visible; }
  .scroll-row > * { flex: 1; }
}

/* ---------- Sticky mobile CTA ---------- */

.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 140;
  padding: 12px 16px;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
}
@media (max-width: 640px) {
  .sticky-cta { display: block; }
  body { padding-bottom: 74px; }
}

/* ---------- Utility ---------- */

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.max-w-640 { max-width: 640px; }
.max-w-720 { max-width: 720px; margin-left: auto; margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

.big-statement {
  font-size: clamp(1.6rem, 3.6vw, 2.6rem);
  font-family: var(--font-heading);
  font-weight: 800;
  text-transform: none;
  max-width: 900px;
  line-height: 1.25;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 860px) {
  .two-col { grid-template-columns: 1fr; }
}

.image-placeholder:has(img) { padding: 0; background: none; }
.image-placeholder {
  background: linear-gradient(135deg, var(--color-dark), #3a3a3a);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: center;
  border-radius: var(--radius);
  aspect-ratio: 16/10;
  padding: 24px;
}

.breadcrumb {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #cfcfcf;
  margin-bottom: 12px;
}
.breadcrumb a { color: var(--color-accent); }

.map-embed {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/7;
}
.map-embed iframe { width: 100%; height: 100%; border: 0; }

.contact-info-list { list-style: none; padding: 0; margin: 0 0 2rem; }
.contact-info-list li { margin-bottom: 24px; }
.contact-info-list .label {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  display: block;
  margin-bottom: 6px;
}