/* ============================================================
   MODERN ARMOURY — Main Stylesheet
   Mobile-first. Breakpoints: 640px / 768px / 1024px / 1280px
   ============================================================ */

/* --- Custom Properties --- */
:root {
  --bg:           #ededed;
  --grey-heading: #787878;
  --body-text:    #1a1a1a;
  --accent:       #dd8500;
  --white:        #ffffff;
  --border:       #d0d0d0;
  --card-radius:  8px;
  --nav-height:   64px;
  --font-heading: 'Bebas Neue', sans-serif;
  --font-body:    'Roboto', sans-serif;
  --max-content:  1200px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--body-text);
  background-color: var(--bg);
}

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

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

/* --- Typography --- */
h1, h2, h3, h4, .heading {
  font-family: var(--font-heading);
  color: var(--grey-heading);
  letter-spacing: 0.15em;
  line-height: 1.1;
  text-transform: uppercase;
}

/* ============================================================
   NAVIGATION
   ============================================================ */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo {
  height: 40px;
  width: auto;
}

.nav-logo-placeholder {
  height: 40px;
  width: 40px;
  background: #1a1a1a;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #c0c0c0;
  font-family: var(--font-heading);
  font-size: 18px;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.nav-wordmark {
  font-family: var(--font-heading);
  font-size: 20px;
  letter-spacing: 0.15em;
  color: var(--body-text);
  text-transform: uppercase;
}

/* Desktop nav links — hidden on mobile */
.nav-links {
  display: none;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--body-text);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  border-bottom-color: var(--accent);
  color: var(--accent);
}

/* Hamburger button */
.nav-hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
  min-width: 48px;
  min-height: 48px;
  align-items: center;
  justify-content: center;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--body-text);
  transition: transform 0.3s, opacity 0.3s;
  border-radius: 1px;
}

.nav.open .nav-hamburger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav-hamburger span:nth-child(2) { opacity: 0; }
.nav.open .nav-hamburger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile dropdown menu */
.nav-mobile-menu {
  display: none;
  position: absolute;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  z-index: 99;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.nav.open .nav-mobile-menu { display: block; }

.nav-mobile-menu ul { list-style: none; }

.nav-mobile-menu a {
  display: block;
  font-family: var(--font-heading);
  font-size: 18px;
  letter-spacing: 0.1em;
  color: var(--body-text);
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  min-height: 48px;
}

.nav-mobile-menu a:hover,
.nav-mobile-menu a.active { color: var(--accent); }

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 16px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 14px 28px;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  min-height: 48px;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.1s;
  text-decoration: none;
  text-align: center;
  line-height: 1.2;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

.btn-primary:hover { background: #c07700; border-color: #c07700; }
.btn-primary:active { transform: scale(0.98); }

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-outline:hover {
  background: var(--accent);
  color: var(--white);
}

.text-link {
  font-size: 15px;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  display: inline-block;
  padding: 4px 0;
  min-height: 48px;
  line-height: 40px;
}

/* ============================================================
   CARDS & LAYOUT
   ============================================================ */

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  overflow: hidden;
}

.container {
  width: 100%;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section { padding: 3.5rem 0; }

.section-title {
  font-family: var(--font-heading);
  font-size: 34px;
  color: var(--grey-heading);
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}

.section-sub {
  font-size: 16px;
  color: var(--body-text);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 640px;
}

/* --- Image Placeholders --- */
.img-placeholder {
  background: #d4d4d4;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--grey-heading);
  font-size: 13px;
  font-family: var(--font-body);
  text-align: center;
  padding: 1rem;
}

/* --- Tech Grid CSS Texture --- */
.tech-bg {
  position: relative;
}

.tech-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120,120,120,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,120,120,0.08) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.tech-bg > * { position: relative; z-index: 1; }

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 2rem 1.25rem;
  text-align: center;
  font-size: 13px;
  color: var(--grey-heading);
  line-height: 2.2;
}

.footer a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ============================================================
   PAGE: HOMEPAGE HERO
   ============================================================ */

.hero-home {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.hero-half {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 3.5rem 1.5rem;
}

.hero-half-left { background: var(--bg); }

.hero-half-right {
  background: var(--bg);
  position: relative;
}

/* Tech texture on right half */
.hero-half-right::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120,120,120,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,120,120,0.08) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero-half-right > * { position: relative; z-index: 1; }

/* AI particle canvas — sits above the CSS grid but below the text content */
.hero-half-right > .ai-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  display: block;
}

.hero-heading {
  font-size: 40px;
  margin-bottom: 1rem;
}

.hero-sub {
  font-size: 16px;
  max-width: 300px;
  margin-bottom: 2rem;
  text-transform: none;
  font-family: var(--font-body);
  color: var(--body-text);
  letter-spacing: 0;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.hero-heading-wrap,
.hero-sub-wrap {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Hero model — hidden on mobile, centred overlay on desktop */
.hero-model-wrap { display: none; }

/* Invisible centre column — 70% of hero-model width, purely for alignment */
.hero-invisible-col { display: none; }

/* ============================================================
   PAGE HERO BANNER (shared across inner pages)
   ============================================================ */

.page-hero {
  background: var(--bg);
  padding: 4rem 1.25rem 3rem;
  text-align: center;
}

.page-hero h1 {
  font-size: 44px;
  margin-bottom: 0.75rem;
}

.page-hero .page-hero-sub {
  font-size: 18px;
  color: var(--grey-heading);
  font-family: var(--font-body);
  letter-spacing: 0;
  text-transform: none;
}

/* ============================================================
   PAGE: T-SHIRT CATALOGUE
   ============================================================ */

/* Category thumbnail grid */
.cat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 3rem;
}

.cat-thumb {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  display: block;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.cat-thumb:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(221,133,0,0.15);
}

.cat-thumb-img {
  aspect-ratio: 540 / 304;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--grey-heading);
  font-size: 13px;
  text-align: center;
  padding: 1rem;
}

/* Top-grid thumbnail images — full image visible, label stays below */
img.cat-thumb-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 540 / 304;
  object-fit: contain;
  padding: 0;
  max-width: 100%;
}

/* Catalogue accordion images — show full image */
img.cat-item-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  padding: 0;
  max-width: 100%;
}

/* Larger container variant — use on cat-item for oversized images */
.cat-item.large img.cat-item-img {
  max-width: 120%;
  margin: 0 auto;
  display: block;
}

.cat-thumb-label {
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--grey-heading);
  letter-spacing: 0.12em;
  text-align: center;
  padding: 0.75rem 0.5rem;
  text-transform: uppercase;
}

/* Accordion sections */
.cat-section { border-bottom: 1px solid var(--border); }

.cat-toggle {
  width: 100%;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--bg);
  border: none;
  border-top: 1px solid var(--border);
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 22px;
  letter-spacing: 0.12em;
  color: var(--grey-heading);
  text-transform: uppercase;
  text-align: left;
}

.cat-icon {
  color: var(--accent);
  font-size: 24px;
  line-height: 1;
  flex-shrink: 0;
  margin-left: 1rem;
}

.cat-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.cat-content-inner {
  padding: 1.5rem 1.25rem 2.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.cat-item { margin-bottom: 2rem; }

.cat-item-img {
  width: 100%;
  aspect-ratio: 4/3;
  background: #d4d4d4;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  font-size: 13px;
  color: var(--grey-heading);
  text-align: center;
  padding: 1rem;
}

.cat-caption {
  font-size: 14px;
  color: var(--grey-heading);
  margin-top: 0.5rem;
  text-align: center;
}

/* Customisation methods */
.methods-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.method-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 2rem 1.5rem;
  text-align: center;
}

.method-icon {
  font-size: 40px;
  margin-bottom: 0.75rem;
  display: block;
}

.method-name {
  font-family: var(--font-heading);
  font-size: 22px;
  letter-spacing: 0.12em;
  color: var(--grey-heading);
  margin-bottom: 0.5rem;
}

.method-desc {
  font-size: 14px;
  color: var(--grey-heading);
  line-height: 1.6;
}

/* ============================================================
   PAGE: COACHING
   ============================================================ */

.coaching-cards-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.coaching-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 2rem 1.5rem;
}

.coaching-card-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 12px;
  letter-spacing: 0.12em;
  padding: 4px 10px;
  border-radius: 2px;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.coaching-card-title {
  font-family: var(--font-heading);
  font-size: 28px;
  letter-spacing: 0.12em;
  color: var(--grey-heading);
  margin-bottom: 0.5rem;
}

.coaching-card-sub {
  font-size: 15px;
  color: var(--body-text);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.coaching-for {
  font-size: 14px;
  color: var(--grey-heading);
  font-style: italic;
  margin-bottom: 1.5rem;
  padding-left: 0.75rem;
  border-left: 3px solid var(--accent);
}

.features-list {
  list-style: none;
  margin-bottom: 1.5rem;
}

.features-list li {
  padding: 0.4rem 0;
  font-size: 15px;
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  border-bottom: 1px solid #f0f0f0;
}

.features-list li:last-child { border-bottom: none; }

.features-list li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.format-block {
  background: var(--bg);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 14px;
}

.format-block strong {
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--grey-heading);
  display: block;
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

.price-block {
  background: var(--bg);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.price-label {
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--grey-heading);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.price-original {
  text-decoration: line-through;
  color: var(--grey-heading);
  font-size: 14px;
  display: block;
  margin-bottom: 0.5rem;
}

.price-list {
  list-style: none;
}

.price-list li {
  padding: 0.3rem 0;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.price-list li:last-child { border-bottom: none; }

.price-list li::before {
  content: '•';
  color: var(--accent);
  flex-shrink: 0;
}

.includes-note {
  font-size: 13px;
  color: var(--grey-heading);
  font-style: italic;
  margin-top: 0.5rem;
}

.coaching-cta-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
}

.enquiry-note {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.5rem;
  text-align: center;
  margin-top: 2rem;
}

.enquiry-note p {
  font-size: 15px;
  color: var(--body-text);
  margin-bottom: 1rem;
}

.enquiry-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   PAGE: ABOUT
   ============================================================ */

.about-section {
  padding: 3rem 0;
  border-bottom: 1px solid var(--border);
}

.about-section:last-of-type { border-bottom: none; }

.about-photo-placeholder {
  width: 100%;
  max-width: 260px;
  aspect-ratio: 3/4;
  background: #d4d4d4;
  border-radius: var(--card-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--grey-heading);
  font-size: 13px;
  text-align: center;
  padding: 1rem;
  margin: 0 auto 2rem;
}

.trust-list {
  list-style: none;
}

.trust-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.trust-list li:last-child { border-bottom: none; }

.trust-list li::before {
  content: '●';
  color: var(--accent);
  font-size: 10px;
  flex-shrink: 0;
}

.creds-list {
  list-style: none;
}

.creds-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.creds-list li:last-child { border-bottom: none; }

.creds-list li::before {
  content: '—';
  color: var(--accent);
  flex-shrink: 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.contact-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  gap: 1rem;
  align-items: center;
}

.contact-icon {
  font-size: 28px;
  flex-shrink: 0;
}

.contact-label {
  font-family: var(--font-heading);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--grey-heading);
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.contact-value {
  font-size: 15px;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ============================================================
   CTA SECTION (shared)
   ============================================================ */

.cta-section {
  padding: 4rem 1.25rem;
  text-align: center;
  background: var(--white);
  border-top: 1px solid var(--border);
}

.cta-section h2 { font-size: 34px; margin-bottom: 1rem; }

.cta-note {
  font-size: 14px;
  color: var(--grey-heading);
  margin-top: 1rem;
}

.cta-btn-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* ============================================================
   TABLET: ≥ 640px
   ============================================================ */

@media (min-width: 640px) {
  .cat-grid { grid-template-columns: 1fr 1fr; }
  .methods-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   TABLET: ≥ 768px
   ============================================================ */

@media (min-width: 768px) {
  /* Show desktop nav, hide hamburger */
  .nav-links { display: flex; }
  .nav-hamburger { display: none; }

  /* Homepage hero: grid layout with shared rows for perfect alignment */
  .hero-home {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: minmax(calc(40vh - 64px), auto) auto 1fr;
    grid-row-gap: 1rem;
  }

  /* Both halves use subgrid to share row heights */
  .hero-half {
    display: grid;
    grid-template-rows: subgrid;
    grid-row: 1 / 4;
    padding: 4rem 4%;
    align-items: stretch;
  }

  /* Heading wrap pinned to bottom of row 1 (shared across both columns) */
  .hero-heading-wrap {
    grid-row: 1;
    justify-content: flex-end;
    align-self: end;
    align-items: stretch;
  }

  /* Sub+CTA pinned to top of row 2 (shared across both columns) */
  .hero-sub-wrap {
    grid-row: 2;
    align-items: stretch;
    justify-content: flex-start;
    gap: 1.5rem;
    align-self: start;
  }

  .hero-heading { font-size: 48px; }

  /* Kill the mobile max-width constraint on both halves */
  .hero-half .hero-sub { max-width: none; }

  /* LEFT half: heading centred, sub left-aligned, CTAs centred; content shifted left */
  /* padding-right = half of invisible column (70% × 420px model ÷ 2 = 147px) */
  .hero-half-left { text-align: left; padding-left: 2%; padding-right: 147px; }
  .hero-half-left .hero-heading { text-align: left; }
  .hero-half-left .hero-sub    { text-align: left; }
  .hero-half-left .hero-cta-group { align-items: center; }

  /* RIGHT half: heading centred, sub right-aligned, CTAs centred; content shifted right */
  /* padding-left = half of invisible column (70% × 420px model ÷ 2 = 147px) */
  .hero-half-right { text-align: right; padding-right: 2%; padding-left: 147px; }
  .hero-half-right .hero-heading { text-align: right; }
  .hero-half-right .hero-sub    { text-align: right; }
  .hero-half-right .hero-cta-group { align-items: center; }

  /* Invisible centre column — shown on desktop, centred at 50% */
  .hero-invisible-col {
    display: block;
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 294px;
    transform: translateX(-50%);
    pointer-events: none;
    z-index: 5;
  }

  /* Hero model — spans full hero height, image pinned to bottom */
  .hero-model-wrap {
    display: block;
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    transform: translateX(-50%);
    z-index: 10;
    pointer-events: none;
    background: transparent;
    width: 420px;
  }

  .hero-model-img {
    height: 100%;
    width: 100%;
    object-fit: contain;
    object-position: bottom;
    background: transparent;
    display: block;
  }

  .coaching-cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: start;
  }

  .cta-btn-group { flex-direction: row; justify-content: center; }
  .coaching-cta-group { flex-direction: row; flex-wrap: wrap; }
}

/* ============================================================
   DESKTOP: ≥ 1024px
   ============================================================ */

@media (min-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(4, 1fr); }

  .hero-heading { font-size: 54px; }

  .page-hero h1 { font-size: 56px; }

  .about-intro-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 3rem;
    align-items: start;
  }

  .about-photo-placeholder { margin: 0; }

  .contact-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
   DESKTOP: ≥ 1280px
   ============================================================ */

@media (min-width: 1280px) {
  .hero-half    { padding: 4rem 5%; }
  /* padding at center edge = half of invisible column (70% × 510px model ÷ 2 = 178px) */
  .hero-half-left  { padding-left: 2.5%; padding-right: 178px; }
  .hero-half-right { padding-right: 2.5%; padding-left: 178px; }
  .hero-heading { font-size: 64px; }
  .hero-model-wrap { width: 510px; }
  .hero-invisible-col { width: 357px; /* 70% × 510px */ }
}