/*
  Union International styles.css
  Aesthetic: Precision European B2B
  Display font: Cormorant (editorial serif)
  Body font: DM Sans
  Palette: Warm linen · Deep charcoal · Amber gold · Dark teal
*/

/* ─── TOKENS ─── */

:root {
  --bg:          #f5f5f7;
  --bg-alt:      #e8e8ed;
  --bg-dark:     #111111;
  --panel:       #ffffff;
  --text:        #1d1d1f;
  --muted:       #6e6e73;
  --amber:       #b8712f;
  --amber-light: #d4904e;
  --line:        rgba(0, 0, 0, 0.08);
  --line-mid:    rgba(0, 0, 0, 0.12);
  --line-strong: rgba(0, 0, 0, 0.18);
  --max:         1200px;
  --gutter:      clamp(1.25rem, 4vw, 3rem);
}

/* ─── RESET ─── */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font: inherit;
  cursor: pointer;
}

h1, h2, h3 {
  font-family: 'Cormorant', Georgia, serif;
  font-weight: 500;
  margin: 0;
}

ul, ol {
  padding: 0;
  margin: 0;
  list-style: none;
}

/* ─── LAYOUT ─── */

.container {
  width: min(var(--max), 100% - 2 * var(--gutter));
  margin-inline: auto;
}

/* ─── TYPOGRAPHY ─── */

.eyebrow {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.67rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1rem;
}

.eyebrow.light {
  color: rgba(245, 245, 247, 0.45);
}

h1 {
  font-size: clamp(2.8rem, 6vw, 5.8rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 3.8vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1rem;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  line-height: 1.4;
}

.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-header h2 {
  margin-top: 0.5rem;
}

.section-lead {
  margin: 1rem 0 0;
  color: var(--muted);
  max-width: 54ch;
  font-size: 0.93rem;
  line-height: 1.75;
}

/* ─── BUTTONS ─── */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 24px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  background: var(--text);
  color: var(--bg);
  border: 1.5px solid var(--text);
  transition: background 0.18s, color 0.18s, transform 0.15s;
}

.btn-primary:hover {
  background: transparent;
  color: var(--text);
  transform: translateY(-1px);
}

.light-btn {
  background: var(--bg);
  color: var(--bg-dark);
  border-color: var(--bg);
}

.light-btn:hover {
  background: transparent;
  color: var(--bg);
}

.inv-btn {
  background: var(--bg);
  color: var(--bg-dark);
  border-color: var(--bg);
}

.inv-btn:hover {
  background: transparent;
  color: var(--bg);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 24px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--muted);
  border: 1.5px solid var(--line-strong);
  transition: border-color 0.18s, color 0.18s;
}

.btn-ghost:hover {
  border-color: var(--text);
  color: var(--text);
}

/* ─── HEADER ─── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(245, 245, 247, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-mid);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: min(var(--max), 100% - 2 * var(--gutter));
  margin-inline: auto;
  height:62px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-logo {
  width: 88px;
  height: auto;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand-text strong {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--text);
}

.brand-text span {
  font-size: 0.57rem;
  color: var(--muted);
  letter-spacing: 0.1em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-nav a {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--muted);
  transition: color 0.2s;
}

.main-nav a:hover {
  color: var(--text);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-shrink: 0;
}

.language-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

.lang-btn {
  background: none;
  border: none;
  padding: 4px 0;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color 0.15s;
}

.lang-btn:hover { color: var(--text); }

.lang-btn.active {
  color: var(--text);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.language-toggle span {
  color: var(--line-strong);
  font-size: 0.8rem;
}

.cta-nav {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 8px 16px;
  border: 1px solid var(--line-strong);
  color: var(--text);
  transition: background 0.18s, color 0.18s;
}

.cta-nav:hover {
  background: var(--text);
  color: var(--bg);
}

/* ─── HERO ─── */

.hero {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  min-height: min(52vh, 480px);
  border-bottom: 1px solid var(--line-mid);
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.5rem, 3vw, 2.5rem) clamp(2rem, 5vw, 4rem) clamp(1.5rem, 3vw, 2.5rem) max(var(--gutter), calc((100vw - var(--max)) / 2));
}

.hero-content .eyebrow {
  margin-bottom: 1.1rem;
}

.hero-content h1 {
  font-size: clamp(2.4rem, 4vw, 4.2rem);
  margin-bottom: 1.1rem;
}

.hero-lead {
  margin: 0 0 1.75rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 48ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 1.25rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.hero-trust span::before {
  content: '✓ ';
  color: var(--amber);
}

.hero-image {
  position: relative;
  background: var(--bg-alt);
  overflow: hidden;
  border-left: 1px solid var(--line-mid);
}

.hero-image img {
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  object-position: 50% 100%;
  transform: scale(1.1);
  transform-origin: 50% 100%;
}

.hero-badge {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.badge-name {
  font-family: 'Cormorant', serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}

.badge-label {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
}

/* ─── STATS ─── */

.stats-section {
  background: var(--panel);
  border-bottom: 1px solid var(--line-mid);
}

.stats-inner {
  display: flex;
  align-items: stretch;
  width: 100%;
}

.stat-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(1.75rem, 3vw, 2.5rem) clamp(1.5rem, 3vw, 2.5rem);
}

.stat-num {
  font-family: 'Cormorant', serif;
  font-size: clamp(2rem, 3vw, 3.2rem);
  font-weight: 600;
  line-height: 1;
  color: var(--amber);
  letter-spacing: -0.02em;
}

.stat-item span {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.stat-div {
  width: 1px;
  background: var(--line-mid);
  margin: 1.5rem 0;
}

/* ─── HOW IT WORKS ─── */

.how-section {
  padding: clamp(3.5rem, 6vw, 6rem) 0;
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}

.how-step {
  background: var(--bg);
  padding: clamp(2rem, 3.5vw, 3rem) clamp(1.5rem, 2.5vw, 2.5rem);
}

.how-num {
  display: block;
  font-family: 'Cormorant', serif;
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 400;
  color: var(--line-strong);
  line-height: 1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.how-step h3 {
  margin-bottom: 0.6rem;
}

.how-step p {
  color: var(--muted);
  font-size: 0.87rem;
  line-height: 1.75;
  margin: 0;
}

/* ─── FLAGSHIP ─── */

.flagship-section {
  background: var(--bg);
  padding: clamp(3.5rem, 6vw, 6rem) 0;
}

.flagship-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
  width: min(var(--max), 100% - 2 * var(--gutter));
  margin-inline: auto;
}

.flagship-copy h2 {
  font-size: clamp(2.5rem, 5vw, 5rem);
  margin-bottom: 1.25rem;
  margin-top: 0.25rem;
}

.flagship-lead {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
  margin: 0 0 2.5rem;
  max-width: 42ch;
}

.spec-list {
  border-top: 1px solid var(--line-mid);
  margin-bottom: 2rem;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.83rem;
}

.spec-row span {
  color: var(--muted);
}

.spec-row strong {
  color: var(--text);
  font-weight: 500;
}

.flagship-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 2.5rem;
}

.flagship-tags span {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  color: var(--muted);
}

.flagship-image img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

/* ─── FULL BLEED IMAGE ─── */

.full-bleed-image {
  height: clamp(280px, 40vw, 540px);
  overflow: hidden;
  border-top: 1px solid var(--line-mid);
  border-bottom: 1px solid var(--line-mid);
}

.full-bleed-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ─── PRODUCT RANGE ─── */

.range-section {
  padding: clamp(3.5rem, 6vw, 6rem) 0;
  background: var(--panel);
  border-bottom: 1px solid var(--line-mid);
}

.range-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}

.range-card {
  background: var(--panel);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
}

.range-card--featured {
  background: var(--bg);
}

.range-image {
  height: clamp(180px, 18vw, 230px);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: -1.75rem -1.5rem 1rem;
  padding: 1rem;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.range-card--featured .range-image {
  background: var(--bg);
}

.range-image img {
  width: auto;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  object-fit: contain;
}

.range-tag {
  font-size: 0.63rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 0.75rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}

.range-tag--featured {
  color: var(--amber);
}

.range-card h3 {
  font-family: 'Cormorant', serif;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.range-card p {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.6;
  flex: 1;
  margin: 0 0 1rem;
}

.spec-tags {
  border-top: 1px solid var(--line);
  padding-top: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.spec-tags li {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ─── PLATFORM ─── */

.platform-section {
  padding: clamp(3.5rem, 6vw, 6rem) 0;
  background: var(--bg);
}

.platform-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: end;
  margin-bottom: clamp(3rem, 5vw, 4.5rem);
}

.platform-intro {
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.8;
  margin: 0;
  max-width: 44ch;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}

.platform-feat {
  background: var(--bg);
  padding: 2.5rem 2rem;
}

.pf-marker {
  font-size: 1.1rem;
  color: var(--amber);
  margin-bottom: 1.25rem;
  font-weight: 300;
  font-family: 'Cormorant', serif;
}

.platform-feat h3 {
  margin-bottom: 0.5rem;
}

.platform-feat p {
  font-size: 0.83rem;
  color: var(--muted);
  line-height: 1.75;
  margin: 0;
}

/* ─── PROCESS ─── */

.process-section {
  padding: clamp(3.5rem, 6vw, 6rem) 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--line-mid);
  border-bottom: 1px solid var(--line-mid);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
  margin-top: 0;
}

.process-step {
  background: var(--bg-alt);
  padding: 2.5rem 2rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.ps-num {
  font-family: 'Cormorant', serif;
  font-size: 2rem;
  font-weight: 500;
  color: var(--amber);
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.ps-body h3 {
  margin-bottom: 0.4rem;
}

.ps-body p {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}

/* ─── CTA ─── */

.cta-section {
  background: var(--bg-dark);
  padding: clamp(3.5rem, 6vw, 6rem) 0;
}

.cta-inner {
  width: min(var(--max), 100% - 2 * var(--gutter));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.cta-inner h2 {
  color: var(--bg);
  margin-top: 0.5rem;
}

.cta-body {
  color: rgba(245, 245, 247, 0.5);
  font-size: 0.93rem;
  line-height: 1.8;
  margin: 1rem 0 0;
  max-width: 44ch;
}

.cta-action {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.cta-note {
  font-size: 0.75rem;
  color: rgba(245, 245, 247, 0.35);
  margin: 0;
  letter-spacing: 0.03em;
}

/* ─── FOOTER ─── */

.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--line-mid);
  padding: 1.75rem 0;
}

.footer-inner {
  width: min(var(--max), 100% - 2 * var(--gutter));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0;
}

/* ─── SCROLL REVEAL ─── */

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ─── RESPONSIVE ─── */

@media (max-width: 1024px) {
  .platform-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .range-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .platform-header {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .platform-intro {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-content {
    padding: 3rem var(--gutter) 2.5rem;
  }

  .hero-image {
    min-height: 52vw;
    border-left: none;
    border-top: 1px solid var(--line-mid);
  }

  .main-nav {
    display: none;
  }

  .header-right .cta-nav {
    display: none;
  }

  .stats-inner {
    flex-wrap: wrap;
  }

  .stat-item {
    flex: 1 1 calc(50% - 1px);
    min-width: 0;
  }

  .stat-div {
    display: none;
  }

  .how-grid {
    grid-template-columns: 1fr;
  }

  .flagship-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .flagship-image {
    order: -1;
  }

  .flagship-image img {
    aspect-ratio: 4 / 3;
  }

  .range-grid {
    grid-template-columns: 1fr;
  }

  .platform-grid {
    grid-template-columns: 1fr;
  }

  .process-list {
    grid-template-columns: 1fr;
  }

  .cta-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .btn-primary,
  .btn-ghost {
    width: 100%;
    justify-content: center;
  }

  .hero-trust {
    gap: 1rem;
  }
}