/* IRinnovations — Premium Design System */

:root {
  --crimson: #b91c3c;
  --crimson-light: #dc2626;
  --crimson-glow: rgba(185, 28, 60, 0.35);
  --slate-950: #020617;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --white: #ffffff;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--slate-950);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

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

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ─── Header ─── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(2, 6, 23, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
  gap: 1rem;
}

@media (min-width: 768px) {
  .header-inner {
    gap: 2rem;
  }
}

.logo-link {
  display: inline-flex;
  align-items: center;
  flex-shrink: 1;
  min-width: 0;
  background: #ececec;
  padding: 0.3rem 0.55rem;
  border-radius: 3px;
  line-height: 0;
  transition: background var(--transition);
}

.logo-link:hover {
  background: #f5f5f5;
}

.logo-img {
  display: block;
  height: 1.75rem;
  width: auto;
  max-width: min(11.5rem, 48vw);
  object-fit: contain;
}

@media (min-width: 480px) {
  .logo-img {
    height: 2rem;
    max-width: min(13rem, 52vw);
  }
}

@media (min-width: 768px) {
  .logo-img {
    height: 2.25rem;
    max-width: 15rem;
  }
}

@media (max-width: 639px) {
  .header-actions .btn-primary {
    display: none;
  }

  .header-inner {
    height: 4rem;
  }
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 2rem;
}

@media (min-width: 1024px) {
  .desktop-nav {
    display: flex;
  }
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--slate-400);
  transition: color var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link-active {
  color: var(--white);
}

.nav-link-active::after {
  content: '';
  position: absolute;
  bottom: -0.35rem;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--crimson);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-phone {
  font-size: 0.875rem;
  color: var(--slate-300);
  transition: color var(--transition);
}

.header-phone:hover {
  color: var(--white);
}

.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 2rem;
  height: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--white);
  transition: transform var(--transition), opacity var(--transition);
}

.mobile-menu-btn.is-open .hamburger-line:first-child {
  transform: translateY(4px) rotate(45deg);
}

.mobile-menu-btn.is-open .hamburger-line:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: var(--slate-950);
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav-phone {
  font-size: 0.875rem;
  color: var(--crimson-light);
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ─── Buttons ─── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.875rem 1.75rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.6875rem;
}

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

.btn-primary:hover {
  background: var(--crimson-light);
  box-shadow: 0 0 24px var(--crimson-glow);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.05);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid transparent;
}

.btn-ghost:hover {
  color: var(--crimson-light);
}

/* ─── Hero ─── */

.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: var(--slate-900);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(185, 28, 60, 0.12) 0%, transparent 60%),
    linear-gradient(135deg, var(--slate-950) 0%, var(--slate-900) 50%, var(--slate-800) 100%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  padding: 5rem 0 4rem;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    padding: 6rem 0;
  }
}

.hero-eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--crimson-light);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.0625rem;
  color: var(--slate-400);
  max-width: 28rem;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-visual {
  position: relative;
}

.hero-image-wrap {
  position: relative;
  border-radius: 2px;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--slate-800);
}

.hero-image-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(2, 6, 23, 0.6) 100%);
  z-index: 1;
  pointer-events: none;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-visual:hover .hero-image {
  transform: scale(1.03);
}

.hero-badge {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  z-index: 2;
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.75rem 1.25rem;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ─── Trust Banner ─── */

.trust-banner {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: var(--slate-950);
  padding: 2.5rem 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  text-align: center;
}

@media (min-width: 768px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.trust-item {
  padding: 0 1rem;
}

.trust-icon {
  width: 2.5rem;
  height: 2.5rem;
  margin: 0 auto 1rem;
  border: 1px solid var(--crimson);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  color: var(--crimson-light);
}

.trust-label {
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--slate-400);
  margin-bottom: 0.35rem;
}

.trust-value {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
}

/* ─── Section utilities ─── */

.section {
  padding: 5rem 0;
}

.section-dark {
  background: var(--slate-900);
}

.section-darker {
  background: var(--slate-950);
}

.section-header {
  text-align: center;
  max-width: 40rem;
  margin: 0 auto 3.5rem;
}

.section-eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--crimson-light);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--slate-400);
  font-size: 1rem;
  line-height: 1.7;
}

/* ─── Collection cards ─── */

.collections-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

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

.collection-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: var(--slate-800);
  cursor: pointer;
}

.collection-card-wide {
  grid-column: span 1;
}

@media (min-width: 768px) {
  .collection-card-wide {
    grid-column: span 2;
    aspect-ratio: 16 / 9;
  }
}

.collection-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1), filter var(--transition);
}

.collection-card:hover .collection-card-image {
  transform: scale(1.06);
  filter: brightness(0.75);
}

.collection-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(2, 6, 23, 0.92) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.75rem;
  transition: background var(--transition);
}

.collection-card:hover .collection-card-overlay {
  background: linear-gradient(180deg, rgba(185, 28, 60, 0.08) 0%, rgba(2, 6, 23, 0.95) 100%);
}

.collection-label {
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--crimson-light);
  margin-bottom: 0.35rem;
}

.collection-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.collection-link {
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate-300);
  opacity: 0;
  transform: translateY(8px);
  transition: all var(--transition);
}

.collection-card:hover .collection-link {
  opacity: 1;
  transform: translateY(0);
  color: var(--white);
}

/* ─── Outcomes grid ─── */

.outcomes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

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

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

.outcome-card {
  padding: 2rem 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(15, 23, 42, 0.5);
  transition: border-color var(--transition), transform var(--transition);
}

.outcome-card:hover {
  border-color: rgba(185, 28, 60, 0.4);
  transform: translateY(-4px);
}

.outcome-number {
  font-size: 0.6875rem;
  color: var(--crimson-light);
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.outcome-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.outcome-desc {
  font-size: 0.875rem;
  color: var(--slate-400);
  line-height: 1.6;
}

/* ─── CTA band ─── */

.cta-band {
  background:
    linear-gradient(135deg, var(--slate-900) 0%, var(--slate-950) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 5rem 0;
  text-align: center;
}

.cta-band-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.cta-band-desc {
  color: var(--slate-400);
  max-width: 32rem;
  margin: 0 auto 2rem;
}

.cta-band-accent {
  background:
    radial-gradient(ellipse 60% 80% at 50% 100%, rgba(185, 28, 60, 0.15) 0%, transparent 70%),
    linear-gradient(135deg, var(--slate-900) 0%, var(--slate-950) 100%);
}

/* ─── Shop page ─── */

.page-hero {
  padding: 5rem 0 3rem;
  background: var(--slate-900);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-hero-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.page-hero-desc {
  color: var(--slate-400);
  max-width: 36rem;
}

.shop-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.filter-btn {
  padding: 0.625rem 1.25rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: transparent;
  color: var(--slate-400);
  border: 1px solid rgba(255, 255, 255, 0.12);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.3);
}

.filter-btn-active {
  background: var(--crimson);
  color: var(--white);
  border-color: var(--crimson);
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 640px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-card {
  background: var(--slate-900);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: border-color var(--transition), transform var(--transition);
}

.product-card:hover {
  border-color: rgba(185, 28, 60, 0.35);
  transform: translateY(-4px);
}

.product-card-image-wrap {
  display: block;
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--slate-800);
}

.product-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-card-image {
  transform: scale(1.05);
}

.product-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.product-card:hover .product-card-overlay {
  opacity: 1;
}

.product-card-body {
  padding: 1.5rem;
}

.product-category {
  font-size: 0.625rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--crimson-light);
}

.product-card-title {
  font-size: 1rem;
  font-weight: 600;
  margin: 0.5rem 0;
  line-height: 1.35;
}

.product-card-tagline {
  font-size: 0.8125rem;
  color: var(--slate-400);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 1rem;
}

.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--slate-400);
}

.empty-state .btn {
  margin-top: 1.5rem;
}

/* ─── Wholesale page ─── */

.wholesale-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  padding: 4rem 0 5rem;
}

@media (min-width: 1024px) {
  .wholesale-layout {
    grid-template-columns: 1fr 1.1fr;
    align-items: start;
  }
}

.wholesale-benefits {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.benefit-item {
  padding-left: 1.25rem;
  border-left: 2px solid var(--crimson);
}

.benefit-title {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.benefit-desc {
  font-size: 0.875rem;
  color: var(--slate-400);
  line-height: 1.6;
}

.wholesale-form-wrap {
  background: var(--slate-900);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 2.5rem;
}

.form-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.form-subtitle {
  font-size: 0.875rem;
  color: var(--slate-400);
  margin-bottom: 2rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group-full {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate-300);
}

.form-input,
.form-select,
.form-textarea {
  background: var(--slate-950);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--white);
  padding: 0.875rem 1rem;
  font-size: 0.9375rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--crimson);
  box-shadow: 0 0 0 3px var(--crimson-glow);
}

.form-input.input-error,
.form-select.input-error,
.form-textarea.input-error {
  border-color: #ef4444;
}

.form-error {
  font-size: 0.75rem;
  color: #f87171;
  min-height: 1rem;
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-status {
  margin-top: 1.25rem;
  padding: 1rem;
  font-size: 0.875rem;
  border-radius: 2px;
}

.form-status-success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #86efac;
}

.form-status-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

/* ─── About page ─── */

.about-hero {
  padding: 6rem 0 4rem;
  background: var(--slate-900);
}

.about-hero-title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 48rem;
  margin-bottom: 1.5rem;
}

.about-hero-lead {
  font-size: 1.125rem;
  color: var(--slate-400);
  max-width: 40rem;
  line-height: 1.75;
}

.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .philosophy-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.philosophy-image {
  aspect-ratio: 4 / 5;
  object-fit: cover;
  width: 100%;
  background: var(--slate-800);
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step-item {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.step-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--crimson);
  line-height: 1;
  opacity: 0.8;
}

.step-title {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.step-desc {
  font-size: 0.9375rem;
  color: var(--slate-400);
  line-height: 1.7;
}

.vision-block {
  max-width: 48rem;
  margin: 0 auto;
  text-align: center;
}

.vision-quote {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 500;
  line-height: 1.5;
  font-style: italic;
  color: var(--slate-300);
  margin-bottom: 2rem;
}

.vision-attribution {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--crimson-light);
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  text-align: center;
  padding: 3rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

@media (min-width: 768px) {
  .stats-row {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-400);
}

/* ─── Footer ─── */

.site-footer {
  background: var(--slate-950);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 4rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr repeat(3, 1fr);
  }
}

.footer-brand {
  min-width: 0;
}

@media (max-width: 767px) {
  .footer-brand {
    text-align: center;
  }

  .footer-brand .footer-logo,
  .footer-brand .footer-tagline {
    margin-left: auto;
    margin-right: auto;
  }
}

.footer-logo {
  display: block;
  height: 1.75rem;
  width: auto;
  max-width: 12.5rem;
  object-fit: contain;
  margin-bottom: 1rem;
  background: #ececec;
  padding: 0.35rem 0.6rem;
  border-radius: 3px;
}

@media (min-width: 768px) {
  .footer-logo {
    height: 2rem;
    max-width: 13.5rem;
  }
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--slate-400);
  line-height: 1.6;
  max-width: 20rem;
}

.footer-heading {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  color: var(--slate-300);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--slate-400);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--white);
}

.footer-contact {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.contact-label {
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-400);
}

.footer-contact a {
  font-size: 0.875rem;
  color: var(--white);
  transition: color var(--transition);
}

.footer-contact a:hover {
  color: var(--crimson-light);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.75rem;
  color: var(--slate-400);
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-domain a {
  color: var(--slate-400);
  transition: color var(--transition);
}

.footer-domain a:hover {
  color: var(--white);
}

/* ─── Scroll reveal ─── */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Utility ─── */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.col-span-full {
  grid-column: 1 / -1;
}

.hidden {
  display: none;
}

@media (min-width: 1024px) {
  .lg\:inline-flex {
    display: inline-flex;
  }
}

/* ─── Modal ─── */

.modal[hidden] {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(8px);
}

.modal-panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 32rem;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--slate-900);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 2.5rem;
  animation: modalIn 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--slate-300);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: all var(--transition);
}

.modal-close:hover {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.3);
}

.modal-header {
  margin-bottom: 1.75rem;
  padding-right: 2rem;
}

.modal-title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.modal-product-name {
  font-size: 0.875rem;
  color: var(--crimson-light);
  font-weight: 500;
}

.modal-success {
  text-align: center;
  padding: 1rem 0;
}

.modal-success-icon {
  width: 3.5rem;
  height: 3.5rem;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.4);
  color: #86efac;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
}

.modal-success-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.modal-success-desc {
  font-size: 0.9375rem;
  color: var(--slate-400);
  line-height: 1.6;
}

.contact-success {
  text-align: center;
  padding: 2rem 0 0;
}

/* ─── Science Timeline ─── */

.timeline {
  position: relative;
  max-width: 52rem;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 1.25rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--crimson) 0%, rgba(185, 28, 60, 0.2) 100%);
}

@media (min-width: 768px) {
  .timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }
}

.timeline-item {
  position: relative;
  padding-left: 3.5rem;
  padding-bottom: 4rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

@media (min-width: 768px) {
  .timeline-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding-left: 0;
    align-items: start;
  }

  .timeline-item:nth-child(odd) .timeline-marker {
    grid-column: 1;
    justify-self: end;
    padding-right: 3rem;
    text-align: right;
  }

  .timeline-item:nth-child(odd) .timeline-content {
    grid-column: 2;
    padding-left: 3rem;
  }

  .timeline-item:nth-child(even) .timeline-marker {
    grid-column: 2;
    padding-left: 3rem;
  }

  .timeline-item:nth-child(even) .timeline-content {
    grid-column: 1;
    grid-row: 1;
    padding-right: 3rem;
    text-align: right;
  }

  .timeline-item:nth-child(even) .timeline-specs {
    align-items: flex-end;
  }
}

.timeline-marker {
  position: relative;
  margin-bottom: 1.25rem;
}

@media (min-width: 768px) {
  .timeline-marker {
    margin-bottom: 0;
  }
}

.timeline-marker::before {
  content: '';
  position: absolute;
  left: -2.25rem;
  top: 50%;
  transform: translateY(-50%);
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--crimson);
  box-shadow: 0 0 12px var(--crimson-glow);
}

@media (min-width: 768px) {
  .timeline-item:nth-child(odd) .timeline-marker::before {
    right: 1.65rem;
    left: auto;
  }

  .timeline-item:nth-child(even) .timeline-marker::before {
    left: -0.35rem;
  }
}

.timeline-phase {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--crimson-light);
}

.timeline-title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.timeline-desc {
  font-size: 0.9375rem;
  color: var(--slate-400);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.timeline-specs {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.timeline-specs li {
  font-size: 0.8125rem;
  color: var(--slate-300);
  padding-left: 1rem;
  border-left: 2px solid var(--crimson);
}

@media (min-width: 768px) {
  .timeline-item:nth-child(even) .timeline-specs li {
    padding-left: 0;
    padding-right: 1rem;
    border-left: none;
    border-right: 2px solid var(--crimson);
  }
}