/* ============================================================
   Digital Product Passport Technology EU B.V. — Main Stylesheet
   Theme: Circular economy / digital transparency (BLUE THEME)
   ============================================================ */

:root {
  --blue-dark: #0e2a47;        /* Navy background */
  --blue-primary: #0b3d91;     /* Deep navy blue — main brand color */
  --blue-light: #1e6fd9;       /* Bright sky blue — buttons / accents */
  --sky-blue: #61a5f0;         /* Soft sky-blue accent */
  --blue-soft: #eaf2fc;        /* Very light blue background */
  --blue-gray: #2b4a7a;        /* Muted blue-gray */
  --eu-yellow: #ffcc00;        /* EU star yellow — sparing highlights */
  
  --ink: #1f2937;              /* Dark text color */
  --ink-soft: #4b5563;         /* Medium gray text */
  --paper: #f8fafc;            /* Light off-white background */
  --white: #ffffff;            /* Pure white */
  --border: #e2e8f0;           /* Subtle border color */
  
  --radius: 14px;              /* Border radius */
  --shadow-sm: 0 1px 3px rgba(14, 42, 71, 0.08);
  --shadow-md: 0 8px 24px rgba(14, 42, 71, 0.10);
  --shadow-lg: 0 16px 48px rgba(14, 42, 71, 0.16);
  
  --maxw: 1120px;              /* Max container width */
  --font: "Segoe UI", "Inter", "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.97rem;
  letter-spacing: 0.01em;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--blue-primary);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { 
  background: var(--blue-light);
  transform: translateY(-2px); 
  box-shadow: var(--shadow-md); 
}
.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255, 255, 255, 0.55);
}
.btn-ghost:hover { 
  border-color: var(--white); 
  background: rgba(255, 255, 255, 0.08); 
  transform: translateY(-2px); 
}
.btn-outline {
  background: transparent;
  color: var(--blue-primary);
  border: 1.5px solid var(--blue-primary);
}
.btn-outline:hover { 
  background: var(--blue-primary); 
  color: var(--white); 
  transform: translateY(-2px); 
}

/* ---------- Header / Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 72px;
}

.nav-right {
  order: 3;
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-switch {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue-primary);
  border: 1.5px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  white-space: nowrap;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.lang-switch:hover { 
  color: var(--blue-light); 
  border-color: var(--blue-light); 
}

/* Logo styling */
.logo {
  height: 42px;
  width: auto;
  display: flex;
  align-items: center;
}
.logo img {
  height: 100%;
  width: auto;
  object-fit: contain;
}
.logo svg {
  height: 100%;
  width: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: var(--blue-dark);
}
.brand svg { width: 40px; height: 40px; }
.brand img.brand-logo { height: 58px; width: auto; max-width: 60vw; }
.site-footer .brand img.brand-logo { height: 62px; }
.brand img.brand-mark { width: 40px; height: 40px; border-radius: 9px; }
.brand-name { 
  font-size: 1.02rem; 
  line-height: 1.2; 
}
.brand-name small { 
  display: block; 
  font-weight: 500; 
  font-size: 0.66rem; 
  color: var(--ink-soft); 
  letter-spacing: 0.08em; 
  text-transform: uppercase; 
}

.nav-links {
  order: 2;
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
  transition: color 0.15s ease;
}
.nav-links a:hover, .nav-links a.active { 
  color: var(--blue-dark); 
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 2px;
  background: var(--blue-light);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}
.nav-links a:hover::after, .nav-links a.active::after { 
  transform: scaleX(1); 
}

.nav-cta { 
  margin-left: 8px; 
  padding: 10px 22px !important; 
}
.nav-links a.btn { color: var(--white); }
.nav-links a.btn:hover { color: var(--white); }
.nav-links a.btn::after { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2.5px;
  background: var(--blue-dark);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(97, 165, 240, 0.28), transparent 60%),
    linear-gradient(135deg, #0e2a47 0%, #0b3d91 55%, #1e6fd9 100%);
  color: var(--white);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  padding: 96px 0 110px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.3rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
.hero h1 em { 
  color: var(--sky-blue); 
  font-style: normal; 
}
.hero p.lede {
  font-size: 1.13rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 54ch;
  margin-bottom: 36px;
}
.hero-actions { 
  display: flex; 
  flex-wrap: wrap; 
  gap: 16px; 
}

/* Passport card visual */
.passport-card {
  position: relative;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 20px;
  padding: 28px;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-lg);
  animation: float 7s ease-in-out infinite;
}
.passport-card .pc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  margin-bottom: 18px;
}
.passport-card .pc-title { 
  font-weight: 700; 
  font-size: 0.95rem; 
}
.passport-card .pc-badge {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #002a66;
  background: var(--blue-light);
  border-radius: 999px;
  padding: 4px 12px;
}
.passport-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.86rem;
  padding: 8px 0;
  color: rgba(255, 255, 255, 0.78);
}
.passport-row b { 
  color: var(--white); 
  font-weight: 600; 
}
.pc-bar {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  overflow: hidden;
  margin-top: 16px;
}
.pc-bar i {
  display: block;
  height: 100%;
  width: 92%;
  background: linear-gradient(90deg, var(--blue-light), #7fb0f5);
  border-radius: 999px;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section.alt { background: var(--white); }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head.center { 
  margin-left: auto; 
  margin-right: auto; 
  text-align: center; 
}
.kicker {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.2;
  color: var(--blue-dark);
  margin-bottom: 14px;
}
.section-head p { 
  color: var(--ink-soft); 
  font-size: 1.05rem; 
}

/* ---------- Cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 30px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.card:hover { 
  transform: translateY(-6px); 
  box-shadow: var(--shadow-md); 
  border-color: var(--blue-light); 
}
.card .icon {
  width: 52px; height: 52px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: var(--blue-soft);
  color: var(--blue-primary);
  margin-bottom: 20px;
}
.card .icon svg { 
  width: 26px; 
  height: 26px; 
}
.card h3 { 
  font-size: 1.18rem; 
  color: var(--blue-dark); 
  margin-bottom: 10px; 
}
.card p { 
  color: var(--ink-soft); 
  font-size: 0.96rem; 
}
.card ul { 
  margin-top: 14px; 
}
.card ul li {
  position: relative;
  padding-left: 24px;
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin-bottom: 7px;
}
.card ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--blue-light);
  font-weight: 700;
}

/* ---------- Bridge / Asia-EU ---------- */
.bridge {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  background: var(--blue-primary);
  border-radius: var(--radius);
  padding: 44px;
  color: var(--white);
}
.bridge .node { 
  text-align: center; 
}
.bridge .node .dot {
  width: 64px; height: 64px;
  margin: 0 auto 14px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.28);
}
.bridge .node h4 { 
  font-size: 1.08rem; 
  margin-bottom: 6px; 
}
.bridge .node p { 
  font-size: 0.88rem; 
  color: rgba(255, 255, 255, 0.78);
}
.bridge .link {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sky-blue);
  text-align: center;
}
.bridge .link .arrow { 
  font-size: 1.6rem; 
  display: block; 
  line-height: 1; 
  margin: 4px 0; 
}

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stat {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 18px;
  box-shadow: var(--shadow-sm);
}
.stat .num { 
  font-size: 2.1rem; 
  font-weight: 800; 
  color: var(--blue-dark); 
  line-height: 1.1; 
}
.stat .num em { 
  color: var(--blue-light); 
  font-style: normal; 
}
.stat .lbl { 
  font-size: 0.85rem; 
  color: var(--ink-soft); 
  margin-top: 6px; 
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--blue-primary);
  
  
  color: var(--white);
  border-radius: 22px;
  padding: 60px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-lg);
}
.cta-band .btn-primary { background: var(--white); color: var(--blue-primary); }
.cta-band .btn-primary:hover { background: var(--blue-soft); color: var(--blue-primary); }
.cta-band h2 { 
  font-size: clamp(1.4rem, 2.6vw, 1.9rem); 
  margin-bottom: 8px; 
}
.cta-band p { 
  color: rgba(255, 255, 255, 0.8); 
  max-width: 56ch; 
}

/* ---------- Page hero (subpages) ---------- */
.page-hero {
  background: linear-gradient(135deg, #0e2a47 0%, #0b3d91 60%, #1e6fd9 100%);
  color: var(--white);
  padding: 76px 0 64px;
  text-align: center;
}
.page-hero h1 { 
  font-size: clamp(1.9rem, 4vw, 2.8rem); 
  margin-bottom: 14px; 
}
.page-hero p { 
  color: rgba(255, 255, 255, 0.8); 
  max-width: 62ch; 
  margin: 0 auto; 
  font-size: 1.08rem; 
}

/* ---------- Prose (about page) ---------- */
.prose { 
  max-width: 780px; 
  margin: 0 auto; 
}
.prose p { 
  margin-bottom: 18px; 
  color: var(--ink-soft); 
  font-size: 1.02rem; 
}
.prose h3 { 
  color: var(--blue-dark); 
  font-size: 1.3rem; 
  margin: 34px 0 12px; 
}
.prose strong { 
  color: var(--ink); 
}
.pull-quote {
  border-left: 4px solid var(--sky-blue);
  background: var(--white);
  padding: 26px 30px;
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: var(--shadow-sm);
  font-size: 1.1rem;
  color: var(--blue-dark);
  font-weight: 600;
  margin: 28px 0;
}
.value-pillars { 
  display: grid; 
  grid-template-columns: repeat(3, 1fr); 
  gap: 20px; 
  margin: 34px 0 10px; 
}
.pillar {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.pillar .icon { 
  font-size: 1.6rem; 
  margin-bottom: 10px; 
}
.pillar h4 { 
  color: var(--blue-dark); 
  font-size: 1.02rem; 
  margin-bottom: 8px; 
}
.pillar p { 
  font-size: 0.9rem; 
  color: var(--ink-soft); 
}

/* ---------- Timeline ---------- */
.timeline { 
  position: relative; 
  max-width: 720px; 
  margin: 0 auto; 
  padding-left: 28px; 
}
.timeline::before {
  content: "";
  position: absolute;
  left: 6px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--sky-blue), var(--blue-soft));
}
.timeline .t-item { 
  position: relative; 
  padding-bottom: 30px; 
}
.timeline .t-item::before {
  content: "";
  position: absolute;
  left: -28px; top: 5px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--sky-blue);
  box-shadow: 0 0 0 4px var(--blue-soft);
}
.timeline .t-item h4 { 
  color: var(--blue-dark); 
  margin-bottom: 4px; 
  font-size: 1.05rem; 
}
.timeline .t-item p { 
  color: var(--ink-soft); 
  font-size: 0.95rem; 
}
.timeline .t-item .when { 
  font-size: 0.8rem; 
  font-weight: 700; 
  color: var(--sky-blue); 
  letter-spacing: 0.06em; 
  text-transform: uppercase; 
}

/* ---------- Contact ---------- */
.contact-wrap {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: start;
}
.contact-info .item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.contact-info .item:last-child { 
  border-bottom: none; 
}
.contact-info .ico {
  width: 44px; height: 44px;
  flex-shrink: 0;
  border-radius: 11px;
  background: var(--blue-soft);
  color: var(--blue-primary);
  display: grid;
  place-items: center;
  font-size: 1.15rem;
}
.contact-info h4 { 
  font-size: 0.98rem; 
  color: var(--blue-dark); 
  margin-bottom: 2px; 
}
.contact-info p, .contact-info a { 
  font-size: 0.93rem; 
  color: var(--ink-soft); 
}
.contact-info a:hover { 
  color: var(--sky-blue); 
}

.form-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 38px;
  box-shadow: var(--shadow-md);
}
.form-grid { 
  display: grid; 
  grid-template-columns: 1fr 1fr; 
  gap: 18px; 
}
.form-grid .full { 
  grid-column: 1 / -1; 
}
.form-card label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue-dark);
  margin-bottom: 7px;
}
.form-card input, .form-card select, .form-card textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--paper);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form-card input:focus, .form-card select:focus, .form-card textarea:focus {
  outline: none;
  border-color: var(--sky-blue);
  box-shadow: 0 0 0 3px rgba(97, 165, 240, 0.15);
  background: var(--white);
}
.form-card textarea { 
  resize: vertical; 
  min-height: 130px; 
}
.form-card .btn { 
  margin-top: 22px; 
  width: 100%; 
}
.form-note { 
  font-size: 0.8rem; 
  color: var(--ink-soft); 
  margin-top: 14px; 
  text-align: center; 
}
.form-status {
  margin-top: 16px;
  padding: 13px 16px;
  border-radius: 10px;
  font-size: 0.9rem;
  display: none;
}
.form-status.ok { 
  display: block; 
  background: var(--blue-soft); 
  color: #0b3a75; 
}
.form-status.err { 
  display: block; 
  background: #fee2e2; 
  color: #991b1b; 
}

/* ---------- Footer ---------- */
.site-footer {
  background: #d6dce6;        /* soft mid gray footer */
  color: var(--ink-soft);
  padding: 64px 0 30px;
  border-top: 1px solid #b8c2d4;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #b8c2d4;
}
.site-footer h4 {
  color: var(--ink);
  font-size: 0.95rem;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.site-footer .brand { 
  color: var(--ink); 
  margin-bottom: 14px; 
}
.site-footer .brand-name small { 
  color: rgba(255, 255, 255, 0.55); 
}
.site-footer p { 
  font-size: 0.9rem; 
  max-width: 34ch; 
}
.footer-links li { 
  margin-bottom: 10px; 
}
.footer-links a { 
  font-size: 0.9rem; 
  transition: color 0.15s ease; 
}
.footer-links a:hover { 
  color: var(--blue-primary); 
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 26px;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

/* ---------- Reveal on scroll ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.js .reveal.visible { 
  opacity: 1; 
  transform: none; 
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .nav-right { 
    margin-left: auto; 
  }
  .hero-inner { 
    grid-template-columns: 1fr; 
    padding: 64px 0 80px; 
  }
  .grid-3 { 
    grid-template-columns: 1fr; 
  }
  .value-pillars { 
    grid-template-columns: 1fr; 
  }
  .stats { 
    grid-template-columns: repeat(2, 1fr); 
  }
  .contact-wrap { 
    grid-template-columns: 1fr; 
  }
  .footer-grid { 
    grid-template-columns: 1fr; 
    gap: 28px; 
  }
  .bridge { 
    grid-template-columns: 1fr; 
    text-align: center; 
  }
  .bridge .link .arrow { 
    transform: rotate(90deg); 
  }
  .nav-links {
    position: absolute;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav-links.open { 
    display: flex; 
  }
  .nav-links a { 
    padding: 16px 24px; 
    border-top: 1px solid var(--border); 
  }
  .nav-links a::after { 
    display: none; 
  }
  .nav-links a.active { 
    background: var(--blue-soft); 
  }
  .nav-cta { 
    margin: 12px 24px; 
    text-align: center; 
  }
  .nav-toggle { 
    display: flex; 
  }
  .nav-toggle.open span:nth-child(1) { 
    transform: translateY(7.5px) rotate(45deg); 
  }
  .nav-toggle.open span:nth-child(2) { 
    opacity: 0; 
  }
  .nav-toggle.open span:nth-child(3) { 
    transform: translateY(-7.5px) rotate(-45deg); 
  }
}

@media (max-width: 620px) {
  .form-grid { 
    grid-template-columns: 1fr; 
  }
  .stats { 
    grid-template-columns: 1fr; 
  }
  .cta-band { 
    padding: 44px 28px; 
  }
  .form-card { 
    padding: 26px 22px; 
  }
  .section { 
    padding: 64px 0; 
  }
}