@import url('https://fonts.googleapis.com/css2?family=Raleway:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

/* ── TOKENS ── */
:root {
  --color-primary-50:  #EBF2FB;
  --color-primary-100: #C8DCF5;
  --color-primary-200: #91BAEA;
  --color-primary-300: #5A97DD;
  --color-primary-400: #2E7DD4;
  --color-primary-500: #1A5CA8;
  --color-primary-600: #154B8A;
  --color-primary-700: #103A6C;
  --color-primary-800: #0C2A50;
  --color-primary-900: #0D1E3C;

  --color-steel-300:   #6DB8E3;
  --color-steel-400:   #3B9DD4;
  --color-steel-500:   #2280B8;

  --color-teal-100:    #D0F2F7;
  --color-teal-200:    #9DE5F0;
  --color-teal-300:    #4DCDE3;
  --color-teal-400:    #00B4D0;
  --color-teal-500:    #0097B2;

  --color-neutral-0:   #FFFFFF;
  --color-neutral-50:  #F4F6FA;
  --color-neutral-100: #E8ECF4;
  --color-neutral-200: #DDE3EE;
  --color-neutral-300: #C5CEDF;
  --color-neutral-400: #8C9AB3;
  --color-neutral-500: #5C6B84;
  --color-neutral-600: #3D4E66;
  --color-neutral-700: #2C3A52;
  --color-neutral-800: #1C2738;
  --color-neutral-900: #0D1420;

  --navy:      var(--color-primary-900);
  --navy-lt:   var(--color-primary-700);
  --primary:   var(--color-primary-500);
  --steel:     var(--color-steel-400);
  --teal:      var(--color-teal-400);
  --gray:      var(--color-neutral-500);
  --light:     var(--color-neutral-100);
  --off-white: var(--color-neutral-50);

  --font-display: 'Raleway', sans-serif;
  --font-body:    'Inter', sans-serif;

  --shadow-sm: 0 2px 8px rgba(13,30,60,0.08);
  --shadow-md: 0 4px 16px rgba(13,30,60,0.12);
  --shadow-lg: 0 8px 32px rgba(13,30,60,0.16);
  --shadow-xl: 0 16px 48px rgba(13,30,60,0.20);

  --transition-fast: 150ms ease-out;
  --transition-base: 250ms ease-out;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: #fff;
  color: var(--navy);
  overflow-x: hidden;
}

/* ── NAV ── */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 64px;
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-neutral-200);
}
nav .logo img { height: 44px; }
nav .nav-links { display: flex; align-items: center; gap: 32px; }
nav .nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-neutral-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}
nav .nav-links a:hover { color: var(--primary); }
nav .nav-links a.active { color: var(--primary); font-weight: 600; }
nav .nav-cta {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: 4px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: background var(--transition-fast);
  text-decoration: none;
  display: inline-block;
}
nav .nav-cta:hover { background: var(--color-primary-600); }

/* ── FOOTER ── */
footer {
  background: var(--color-neutral-900);
  color: rgba(255,255,255,.45);
  padding: 28px 64px;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
footer img { height: 28px; filter: brightness(0) invert(1); opacity: .65; }

/* ── BUTTONS ── */
.btn-primary {
  background: var(--primary);
  color: #fff;
  padding: 14px 32px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
  text-decoration: none;
  display: inline-block;
}
.btn-primary:hover { background: var(--color-primary-600); transform: translateY(-1px); }
.btn-primary:active { transform: scale(0.98); }

.btn-secondary {
  background: transparent;
  color: var(--navy);
  padding: 14px 28px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid var(--color-neutral-300);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
  display: inline-block;
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }

/* ── SECTION SHARED ── */
.section-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  display: block;
  margin-bottom: 14px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin-bottom: 16px;
}
.section-sub {
  font-size: 17px;
  color: var(--gray);
  line-height: 1.65;
}
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 64px;
}

/* ── HERO ── */
.hero {
  min-height: 90vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
  padding: 80px 64px;
  position: relative;
  overflow: hidden;
  background: #fff;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 70% at 90% 30%, rgba(0,180,208,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 5% 80%, rgba(26,92,168,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.hero-text { position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-200);
  color: var(--color-primary-700);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 28px;
  animation: fadeUp .5s ease both;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--teal);
  display: inline-block;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 4.5vw, 60px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin-bottom: 24px;
  animation: fadeUp .55s .08s ease both;
}
.hero h1 .highlight { color: var(--color-steel-400); }

.hero p {
  font-size: 18px;
  line-height: 1.65;
  color: var(--gray);
  max-width: 480px;
  margin-bottom: 40px;
  animation: fadeUp .6s .16s ease both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeUp .65s .24s ease both;
}

.trust-pills {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 48px;
  animation: fadeUp .7s .32s ease both;
}
.trust-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--color-neutral-200);
  border-radius: 4px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-neutral-700);
}
.trust-pill svg { width: 16px; height: 16px; color: var(--teal); flex-shrink: 0; }

/* ── HERO VISUAL ── */
.hero-visual {
  position: relative;
  z-index: 1;
  animation: fadeUp .6s .2s ease both;
}
.migration-card {
  background: #fff;
  border-radius: 8px;
  padding: 32px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-neutral-200);
  position: relative;
}
.migration-card .card-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 20px;
}
.migration-flow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
.flow-node {
  flex: 1;
  background: var(--off-white);
  border-radius: 6px;
  border: 1px solid var(--color-neutral-200);
  padding: 14px 16px;
  text-align: center;
}
.flow-node .node-icon {
  width: 36px; height: 36px;
  border-radius: 6px;
  margin: 0 auto 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-50);
}
.flow-node .node-icon svg { width: 18px; height: 18px; color: var(--primary); }
.flow-node .node-label { font-size: 12px; font-weight: 600; color: var(--navy); }
.flow-node .node-sub { font-size: 11px; color: var(--gray); margin-top: 2px; }
.flow-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}
.flow-arrow .arrow-line {
  width: 28px;
  height: 1px;
  background: var(--color-neutral-300);
}
.flow-arrow svg { width: 14px; height: 14px; color: var(--steel); }

.progress-section .prog-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-neutral-600);
}
.prog-label .prog-value { color: var(--primary); }
.prog-bar {
  height: 6px;
  background: var(--color-neutral-100);
  border-radius: 9999px;
  overflow: hidden;
  margin-bottom: 12px;
}
.prog-fill {
  height: 100%;
  border-radius: 9999px;
  background: var(--primary);
  animation: growBar 1.5s 1s ease both;
}
.prog-fill.teal { background: var(--teal); }

@keyframes growBar { from { width: 0 !important; } }

.floating-badge {
  position: absolute;
  background: #fff;
  border-radius: 6px;
  border: 1px solid var(--color-neutral-200);
  padding: 10px 14px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  animation: float 3s ease-in-out infinite;
  color: var(--navy);
}
.floating-badge svg { width: 14px; height: 14px; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.badge-top { top: -20px; right: -16px; animation-delay: 0s; }
.badge-top svg { color: var(--teal); }
.badge-bottom { bottom: -20px; left: 12px; animation-delay: 1.5s; }
.badge-bottom svg { color: var(--primary); }

/* ── SERVICES ── */
.services {
  padding: 100px 64px;
  background: var(--off-white);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
}
.service-card {
  background: #fff;
  border-radius: 8px;
  padding: 36px;
  border: 1px solid var(--color-neutral-200);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.service-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-300);
}
.service-icon {
  width: 48px; height: 48px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: var(--color-primary-50);
}
.service-icon svg { width: 24px; height: 24px; color: var(--primary); }
.service-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}
.service-card p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--gray);
}
.service-tag {
  display: inline-block;
  margin-top: 18px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--color-primary-50);
  color: var(--primary);
  border: 1px solid var(--color-primary-100);
}

/* ── WHY OPENDTA ── */
.why {
  padding: 100px 64px;
  background: var(--navy);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.why::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 70% at 100% 50%, rgba(0,180,208,0.10) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 0% 50%, rgba(26,92,168,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.why .section-eyebrow { color: var(--teal); }
.why .section-title { color: #fff; }
.why .section-sub { color: rgba(255,255,255,.55); }

.perks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.perk {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 8px;
  padding: 32px;
  transition: background var(--transition-base), transform var(--transition-base);
}
.perk:hover { background: rgba(255,255,255,.08); transform: translateY(-3px); }
.perk-icon {
  width: 48px; height: 48px;
  border-radius: 6px;
  background: rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.perk-icon svg { width: 24px; height: 24px; color: var(--teal); }
.perk-icon.steel svg { color: var(--color-steel-300); }
.perk h4 { font-family: var(--font-display); font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.perk p { font-size: 14px; line-height: 1.65; color: rgba(255,255,255,.5); }

/* ── CONTACT ── */
.contact { padding: 100px 64px; background: #fff; }
.contact-inner {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-left h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin-bottom: 16px;
}
.contact-left p {
  font-size: 16px;
  line-height: 1.65;
  color: var(--gray);
  margin-bottom: 32px;
}
.contact-perks { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.contact-perks li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-neutral-700);
}
.contact-perks li .check {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-200);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-perks li .check svg { width: 11px; height: 11px; color: var(--primary); }
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-neutral-600);
}
.form-field input,
.form-field select,
.form-field textarea {
  background: var(--off-white);
  border: 1px solid var(--color-neutral-300);
  border-radius: 4px;
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--navy);
  outline: none;
  transition: border-color var(--transition-fast);
  width: 100%;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus { border-color: var(--primary); background: #fff; }
.form-field textarea { resize: vertical; min-height: 100px; }
.form-submit {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
  margin-top: 4px;
  text-align: center;
}
.form-submit:hover { background: var(--color-primary-600); transform: translateY(-1px); }
.form-submit:active { transform: scale(0.98); }

/* ── ARTICLES LISTING ── */
.page-header {
  padding: 72px 64px 56px;
  background: var(--off-white);
  border-bottom: 1px solid var(--color-neutral-200);
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin-bottom: 14px;
}
.page-header p {
  font-size: 17px;
  line-height: 1.65;
  color: var(--gray);
  max-width: 520px;
}
.articles-section {
  padding: 64px 64px 100px;
  max-width: 1100px;
  margin: 0 auto;
}
.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.article-card {
  background: #fff;
  border: 1px solid var(--color-neutral-200);
  border-radius: 8px;
  padding: 32px;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.article-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-300);
}
.article-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--color-primary-50);
  color: var(--primary);
  border: 1px solid var(--color-primary-100);
  margin-bottom: 16px;
  align-self: flex-start;
}
.article-card h2 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--navy);
  margin-bottom: 10px;
}
.article-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--gray);
  flex: 1;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-neutral-100);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-neutral-400);
}
.article-meta span { display: flex; align-items: center; gap: 4px; }
.article-meta svg { width: 13px; height: 13px; }
.article-read-more {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  margin-top: 16px;
}
.article-read-more svg { width: 14px; height: 14px; transition: transform var(--transition-fast); }
.article-card:hover .article-read-more svg { transform: translateX(3px); }

/* ── ARTICLE POST ── */
.article-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 100px;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  margin-bottom: 40px;
  transition: gap var(--transition-fast);
}
.back-link:hover { gap: 10px; }
.back-link svg { width: 14px; height: 14px; }
.article-header { margin-bottom: 40px; }
.article-header h1 {
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin-bottom: 20px;
}
.article-meta-header {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-neutral-400);
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-neutral-200);
}
.article-meta-header span { display: flex; align-items: center; gap: 5px; }
.article-meta-header svg { width: 13px; height: 13px; }

/* Article body typography */
.article-body { line-height: 1.75; color: var(--color-neutral-700); }
.article-body p { font-size: 16px; margin-bottom: 24px; }
.article-body h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
  margin: 40px 0 14px;
  letter-spacing: -0.01em;
}
.article-body h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
  margin: 28px 0 10px;
}
.article-body ul, .article-body ol { padding-left: 24px; margin-bottom: 24px; }
.article-body li { font-size: 16px; margin-bottom: 8px; }
.article-body strong { font-weight: 600; color: var(--navy); }
.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--color-primary-600); }
.article-body blockquote {
  border-left: 3px solid var(--teal);
  padding: 4px 0 4px 20px;
  margin: 28px 0;
  color: var(--color-neutral-600);
  font-style: italic;
}
.article-body code {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 13px;
  background: var(--color-neutral-100);
  color: var(--color-primary-700);
  padding: 2px 6px;
  border-radius: 4px;
}
.article-body pre {
  background: var(--color-neutral-900);
  color: var(--color-neutral-200);
  border-radius: 6px;
  padding: 20px 24px;
  overflow-x: auto;
  margin-bottom: 24px;
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.6;
}
.article-body pre code { background: none; color: inherit; padding: 0; }
.article-cta {
  margin-top: 56px;
  padding: 32px;
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-100);
  border-radius: 8px;
  text-align: center;
}
.article-cta h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.article-cta p { font-size: 14px; color: var(--gray); margin-bottom: 20px; }
.article-cta a {
  background: var(--primary);
  color: #fff;
  padding: 12px 28px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  display: inline-block;
  transition: background var(--transition-fast);
}
.article-cta a:hover { background: var(--color-primary-600); }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .5s ease, transform .5s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  nav { padding: 16px 24px; }
  nav .nav-links { display: none; }
  .hero { grid-template-columns: 1fr; padding: 60px 24px; min-height: auto; gap: 40px; }
  .hero-visual { display: none; }
  .services { padding: 64px 24px; }
  .services-grid { grid-template-columns: 1fr; }
  .why { padding: 64px 24px; }
  .perks-grid { grid-template-columns: 1fr; }
  .contact { padding: 64px 24px; }
  .contact-inner { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  .page-header { padding: 48px 24px 40px; }
  .articles-section { padding: 40px 24px 64px; }
  .articles-grid { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 12px; padding: 24px; }
}