/* ── PRELOADER ── */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: #0B1F3A;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.preloader.fade-out {
  opacity: 0;
  visibility: hidden;
}
.preloader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}
.preloader-logo-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.preloader-logo {
  width: 120px;
  height: auto;
  animation: preloaderPulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
  filter: drop-shadow(0 0 20px rgba(0, 123, 255, 0.3));
  position: relative;
  z-index: 2;
}
.preloader-glow {
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 123, 255, 0.15) 0%, transparent 70%);
  animation: preloaderGlow 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
  z-index: 1;
}
.preloader-bar {
  width: 200px;
  height: 3px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  overflow: hidden;
}
.preloader-bar-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #007BFF, #3da0ff);
  border-radius: 3px;
  transition: width 0.3s ease-out;
}
.preloader-text {
  font-family: 'Poppins', sans-serif;
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.preloader-dots::after {
  content: '';
  animation: preloaderDots 1.5s steps(4, end) infinite;
}

@keyframes preloaderPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.06); opacity: 0.85; }
}
@keyframes preloaderGlow {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.3); opacity: 1; }
}
@keyframes preloaderDots {
  0% { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
}

/* ── NAV LOGO IMAGE ── */
.nav-logo-img {
  height: 36px;
  width: auto;
  display: block;
  transition: filter 0.2s ease-out;
}
.footer-logo-img {
  height: 32px;
  width: auto;
  opacity: 0.85;
  transition: opacity 0.2s ease-out;
}
.footer-logo:hover .footer-logo-img {
  opacity: 1;
}

@media (max-width: 768px) {
  .nav-logo-img { height: 30px; }
  .preloader-logo { width: 90px; }
  .preloader-bar { width: 160px; }
}

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

/* ── CUSTOM SCROLLBAR (Windows / Chromium) ── */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #E2E8F0; }
::-webkit-scrollbar-thumb { background: #0B1F3A; border-radius: 6px; border: 2px solid #E2E8F0; }
::-webkit-scrollbar-thumb:hover { background: #007BFF; }
html { scrollbar-color: #0B1F3A #E2E8F0; scrollbar-width: thin; }

:root {
  --primary: #0B1F3A;
  --accent: #007BFF;
  --accent-hover: #0062cc;
  --accent-light: rgba(0, 123, 255, 0.1);
  --bg: #F5F7FA;
  --white: #FFFFFF;
  --text-primary: #0B1F3A;
  --text-secondary: #4A5568;
  --text-muted: #718096;
  --text-on-dark: #E2E8F0;
  --text-on-dark-muted: #A0AEC0;
  --border: #E2E8F0;
  --card-shadow: 0 1px 3px rgba(11, 31, 58, 0.08), 0 4px 12px rgba(11, 31, 58, 0.04);
  --card-shadow-hover: 0 4px 12px rgba(11, 31, 58, 0.12), 0 8px 24px rgba(11, 31, 58, 0.08);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 200ms ease-out;
  --max-width: 1200px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-primary);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

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

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--accent);
  color: var(--white);
  padding: 8px 16px;
  border-radius: var(--radius);
  z-index: 1000;
  font-weight: 600;
}
.skip-link:focus { top: 16px; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 80px 0; }
.section-dark { background: var(--primary); color: var(--text-on-dark); }

.section-heading {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-subheading {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header .section-subheading {
  margin: 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 48px;
  line-height: 1;
}
.btn:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}
.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.4);
}
.btn-ghost:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}
.btn-ghost-dark {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-ghost-dark:hover {
  background: var(--accent-light);
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11, 31, 58, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: box-shadow var(--transition);
}
.nav.scrolled {
  box-shadow: 0 2px 16px rgba(11, 31, 58, 0.25);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--accent); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-cta {
  padding: 10px 20px !important;
  font-size: 0.875rem !important;
  min-height: 40px !important;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ── HERO ── */
.hero {
  background: var(--primary);
  padding: 140px 0 80px;
  overflow: hidden;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at 70% 50%, rgba(0, 123, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-content { position: relative; z-index: 1; }
.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero h1 .accent { color: var(--accent); }
.hero-sub {
  font-size: 1.125rem;
  color: var(--text-on-dark-muted);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 520px;
}
.hero-bullets {
  margin-bottom: 36px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hero-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-on-dark);
  font-size: 0.9375rem;
}
.hero-bullets li svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}
.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 380px;
}
.hero-actions .btn-primary {
  width: 100%;
  padding: 16px 28px;
  font-size: 1.0625rem;
}
.hero-actions .btn-ghost {
  width: 100%;
  padding: 12px 28px;
  font-size: 0.9375rem;
  border-color: rgba(255, 255, 255, 0.2);
}
.hero-actions .btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.5);
}
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-image-wrapper {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, rgba(0, 123, 255, 0.12) 0%, rgba(11, 31, 58, 0.6) 100%);
  border: 1px solid rgba(0, 123, 255, 0.15);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}
.hero-image-inner {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px;
}
.dc-visual {
  width: 100%;
  height: 100%;
}

/* ── TRUST BAR ── */
.trust-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
}
.trust-label {
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 28px;
}

/* ── PROBLEMS ── */
.problems { background: var(--bg); }
.problems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.problem-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.problem-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}
.problem-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: #FEF2F2;
  color: #DC2626;
}
.problem-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.3;
}
.problem-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ── SOLUTION ── */
.solution { background: var(--white); }
.solution-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.solution-diagram {
  background: linear-gradient(135deg, #F0F4FF 0%, #E8EEFF 100%);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 123, 255, 0.12);
  padding: 32px;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
}
.solution-content .section-heading { text-align: left; }
.solution-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}
.solution-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.solution-features li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9375rem;
  font-weight: 500;
}
.solution-features li svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--accent);
}

/* ── DATA CENTER ── */
.datacenter { background: var(--primary); }
.dc-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}
.dc-columns ul { display: flex; flex-direction: column; gap: 16px; }
.dc-columns li { display: flex; align-items: flex-start; gap: 12px; color: var(--text-on-dark); font-size: 0.9375rem; }
.dc-columns li svg { flex-shrink: 0; margin-top: 3px; color: var(--accent); }
.dc-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 48px; }
.dc-metric { text-align: center; padding: 24px 16px; border-radius: var(--radius-lg); background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.06); }
.dc-metric-icon { width: 48px; height: 48px; border-radius: 50%; background: rgba(0, 123, 255, 0.15); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; color: var(--accent); }
.dc-metric p { font-size: 0.9375rem; font-weight: 600; color: var(--text-on-dark); }

/* ── CAPABILITIES ── */
.capabilities { background: var(--bg); }
.capabilities-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.capability-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px 28px; text-align: center; transition: all var(--transition); cursor: default; }
.capability-card:hover { border-color: var(--accent); box-shadow: var(--card-shadow-hover); transform: translateY(-2px); }
.capability-card:hover .capability-icon { background: var(--accent); color: var(--white); }
.capability-icon { width: 52px; height: 52px; border-radius: var(--radius); background: var(--accent-light); color: var(--accent); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; transition: all var(--transition); }
.capability-card h3 { font-size: 1rem; font-weight: 700; line-height: 1.4; }

/* ── PROCESS ── */
.process { background: var(--white); }
.timeline { display: flex; justify-content: space-between; position: relative; padding: 40px 0 0; }
.timeline::before { content: ''; position: absolute; top: 64px; left: 10%; right: 10%; height: 3px; background: linear-gradient(90deg, var(--accent) 0%, rgba(0, 123, 255, 0.2) 100%); border-radius: 2px; }
.timeline-step { flex: 1; display: flex; flex-direction: column; align-items: center; text-align: center; position: relative; padding: 0 12px; }
.timeline-num { width: 48px; height: 48px; border-radius: 50%; background: var(--accent); color: var(--white); font-size: 1.125rem; font-weight: 700; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; position: relative; z-index: 2; box-shadow: 0 0 0 6px var(--white), 0 0 0 8px rgba(0, 123, 255, 0.15); }
.timeline-step h3 { font-size: 0.9375rem; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.timeline-step p { font-size: 0.8125rem; color: var(--text-muted); line-height: 1.5; max-width: 180px; }
.tooltip { position: relative; cursor: help; border-bottom: 1px dashed var(--accent); }
.tooltip::after { content: attr(data-tooltip); position: absolute; bottom: calc(100% + 10px); left: 50%; transform: translateX(-50%); background: var(--primary); color: var(--white); padding: 10px 16px; border-radius: var(--radius); font-size: 0.8125rem; font-weight: 500; white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity var(--transition); box-shadow: 0 4px 12px rgba(11, 31, 58, 0.25); z-index: 10; }
.tooltip::before { content: ''; position: absolute; bottom: calc(100% + 4px); left: 50%; transform: translateX(-50%); border: 6px solid transparent; border-top-color: var(--primary); opacity: 0; pointer-events: none; transition: opacity var(--transition); z-index: 10; }
.tooltip:hover::after, .tooltip:hover::before, .tooltip:focus::after, .tooltip:focus::before { opacity: 1; }

/* ── CASE STUDIES ── */
.case-studies { background: var(--bg); }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.case-card { background: var(--white); border-radius: var(--radius-lg); padding: 36px 28px; box-shadow: var(--card-shadow); border: 1px solid var(--border); display: flex; flex-direction: column; transition: all var(--transition); }
.case-card:hover { box-shadow: var(--card-shadow-hover); transform: translateY(-2px); }
.case-label { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent); margin-bottom: 12px; }
.case-card h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: 8px; line-height: 1.3; }
.case-scope { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 20px; line-height: 1.5; }
.case-result { margin-top: auto; padding-top: 20px; border-top: 1px solid var(--border); }
.case-result p { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }
.case-result strong { color: var(--accent); font-weight: 700; }

/* ── LEAD FORM ── */
.lead-form-section { background: var(--white); }
.lead-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.form-wrapper { background: var(--bg); border-radius: var(--radius-lg); padding: 40px; border: 1px solid var(--border); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 600; margin-bottom: 6px; color: var(--text-primary); }
.form-group label .optional { font-weight: 400; color: var(--text-muted); }
.form-control { width: 100%; padding: 12px 16px; font-size: 0.9375rem; font-family: inherit; border: 1px solid var(--border); border-radius: var(--radius); background: var(--white); color: var(--text-primary); transition: border-color var(--transition), box-shadow var(--transition); min-height: 48px; }
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.12); }
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23718096' viewBox='0 0 16 16'%3E%3Cpath d='M4.646 5.646a.5.5 0 0 1 .708 0L8 8.293l2.646-2.647a.5.5 0 0 1 .708.708l-3 3a.5.5 0 0 1-.708 0l-3-3a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; background-size: 16px; padding-right: 40px; }
.lead-persuasion h2 { font-size: clamp(1.5rem, 2.5vw, 2rem); font-weight: 800; line-height: 1.2; margin-bottom: 20px; }
.lead-persuasion p { font-size: 1.0625rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 32px; }
.lead-benefits { display: flex; flex-direction: column; gap: 20px; }
.lead-benefit { display: flex; gap: 16px; align-items: flex-start; }
.lead-benefit-icon { width: 40px; height: 40px; flex-shrink: 0; border-radius: var(--radius); background: var(--accent-light); color: var(--accent); display: flex; align-items: center; justify-content: center; }
.lead-benefit h4 { font-size: 0.9375rem; font-weight: 700; margin-bottom: 4px; }
.lead-benefit p { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 0; line-height: 1.5; }

/* ── FINAL CTA ── */
.final-cta { background: linear-gradient(135deg, var(--primary) 0%, #132d52 100%); text-align: center; padding: 80px 0; position: relative; overflow: hidden; }
.final-cta::before { content: ''; position: absolute; top: -50%; left: -25%; width: 150%; height: 200%; background: radial-gradient(ellipse at center, rgba(0, 123, 255, 0.06) 0%, transparent 60%); pointer-events: none; }
.final-cta h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 800; color: var(--white); margin-bottom: 16px; position: relative; }
.final-cta p { color: var(--text-on-dark-muted); font-size: 1.125rem; margin-bottom: 36px; max-width: 540px; margin-left: auto; margin-right: auto; position: relative; }
.final-cta .btn { position: relative; }

/* ── FOOTER ── */
.footer { background: #060F1D; color: rgba(255, 255, 255, 0.7); padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 2fr 1.5fr; gap: 48px; margin-bottom: 48px; }
.footer-brand p { font-size: 0.875rem; line-height: 1.7; margin-top: 12px; color: rgba(255, 255, 255, 0.5); max-width: 280px; }
.footer h4 { font-size: 0.8125rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--white); margin-bottom: 20px; }
.footer ul:not(.footer-links-split) { display: flex; flex-direction: column; gap: 12px; }
.footer ul li a { font-size: 0.875rem; color: rgba(255, 255, 255, 0.55); transition: color var(--transition); }
.footer ul li a:hover { color: var(--white); }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; font-size: 0.875rem; color: rgba(255, 255, 255, 0.55); }
.footer-contact li svg { flex-shrink: 0; margin-top: 2px; color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 28px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-bottom p { font-size: 0.8125rem; color: rgba(255, 255, 255, 0.4); }
.compliance-badges { display: flex; align-items: center; gap: 16px; }
.compliance-badge { display: flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: var(--radius); background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.08); font-size: 0.75rem; font-weight: 600; color: rgba(255, 255, 255, 0.6); }
.compliance-badge svg { color: var(--accent); }

/* ── RESPONSIVE: 1024px ── */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding: 120px 0 60px; }
  .hero-visual { max-width: 480px; }
  .solution-grid { grid-template-columns: 1fr; gap: 40px; }
  .dc-metrics { grid-template-columns: repeat(2, 1fr); }
  .lead-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ── RESPONSIVE: 768px (Mobile) ── */
@media (max-width: 768px) {
  .section { padding: 56px 0; }

  /* Mobile NAV: White sticky header */
  .nav { background: var(--white); border-bottom: 1px solid var(--border); box-shadow: 0 1px 4px rgba(11, 31, 58, 0.06); backdrop-filter: none; -webkit-backdrop-filter: none; }
  .nav-inner { height: 60px; }
  .nav-logo { color: var(--text-primary); }
  .nav-logo span { color: var(--accent); }
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: var(--white); padding: 20px 24px; border-top: 1px solid var(--border); box-shadow: 0 8px 24px rgba(11, 31, 58, 0.12); gap: 4px; }
  .nav-links.open a { color: var(--text-primary); padding: 12px 16px; border-radius: var(--radius); }
  .nav-links.open a:hover { background: var(--bg); }
  .nav-links.open .nav-cta { color: var(--white); }
  .nav-toggle { display: flex; }
  .nav-toggle span { background: var(--text-primary); }

  /* Persistent Bottom CTA Bar */
  .mobile-cta-bar { display: block; position: fixed; bottom: 0; left: 0; right: 0; z-index: 999; background: var(--white); padding: 12px 16px; padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px)); box-shadow: 0 -2px 12px rgba(11, 31, 58, 0.1); transform: translateY(100%); transition: transform 0.3s ease-out; }
  .mobile-cta-bar.visible { transform: translateY(0); }
  .mobile-cta-btn { width: 100%; font-size: 0.9375rem; }
  body { padding-bottom: 0; }
  body.has-mobile-cta { padding-bottom: 72px; }

  /* Hero: text-first, center-aligned */
  .hero { padding: 80px 0 48px; background-image: url('https://images.unsplash.com/photo-1558494949-ef010cbdcc31?w=800&q=60'); background-size: cover; background-position: center; position: relative; }
  .hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,31,58,0.92) 0%, rgba(11,31,58,0.8) 100%); z-index: 0; }
  .hero .container { position: relative; z-index: 1; }
  .hero-grid { grid-template-columns: 1fr; gap: 0; }
  .hero-visual { display: none; }
  .hero-content { text-align: center; }
  .hero h1 { font-size: 28px; text-align: center; }
  .hero-sub { font-size: 16px; text-align: center; margin-left: auto; margin-right: auto; }
  .hero-bullets { align-items: center; }
  .hero-bullets li { font-size: 14px; justify-content: flex-start; }
  .hero-actions { max-width: 100%; margin: 0 auto; }
  .hero-actions .btn { justify-content: center; }

  /* Trust Bar */
  .trust-carousel-track { gap: 48px; }

  /* Problems: Horizontal snap-scroll carousel */
  .problems-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; gap: 16px; padding-bottom: 8px; margin: 0 -24px; padding-left: 24px; padding-right: 24px; }
  .problems-grid::-webkit-scrollbar { display: none; }
  .problems-grid { scrollbar-width: none; }
  .problem-card { scroll-snap-align: start; min-width: 85vw; flex-shrink: 0; }

  /* Solution: hide desktop diagram */
  .solution-grid { grid-template-columns: 1fr; gap: 32px; }
  .solution-diagram { display: none; }
  .solution-mobile-diagram { display: block !important; }

  /* Capabilities */
  .capabilities-grid { grid-template-columns: 1fr 1fr; }

  /* Data Center */
  .dc-columns { grid-template-columns: 1fr; gap: 24px; }
  .dc-metrics { grid-template-columns: repeat(2, 1fr); }

  /* Process: vertical timeline with highlighted steps */
  .timeline { flex-direction: column; gap: 0; align-items: flex-start; padding: 0; }
  .timeline::before { top: 0; bottom: 0; left: 23px; right: auto; width: 3px; height: 100%; }
  .timeline-step { flex-direction: row; text-align: left; gap: 20px; padding: 16px 0; }
  .timeline-num { margin-bottom: 0; flex-shrink: 0; box-shadow: 0 0 0 6px var(--white), 0 0 0 8px rgba(0, 123, 255, 0.15); }
  .timeline-step p { max-width: none; }
  .timeline-step:nth-child(3),
  .timeline-step:nth-child(4) { background: rgba(0, 123, 255, 0.04); border-radius: var(--radius-lg); padding: 16px; margin-left: -8px; padding-left: 28px; border: 1.5px solid rgba(0, 123, 255, 0.15); }
  .timeline-step:nth-child(3) .timeline-num,
  .timeline-step:nth-child(4) .timeline-num { box-shadow: 0 0 0 6px var(--white), 0 0 0 10px rgba(0, 123, 255, 0.25); }

  /* Case Studies: horizontal snap-scroll + KPI-first */
  .case-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; gap: 16px; padding-bottom: 8px; margin: 0 -24px; padding-left: 24px; padding-right: 24px; }
  .case-grid::-webkit-scrollbar { display: none; }
  .case-grid { scrollbar-width: none; }
  .case-card { scroll-snap-align: start; min-width: 85vw; flex-shrink: 0; }
  .case-card-img-wrap { height: 140px; }
  .case-kpi-mobile { display: block !important; font-size: 1.75rem; font-weight: 800; color: var(--accent); margin-bottom: 8px; letter-spacing: -0.02em; }

  /* Lead Form: Multi-step on mobile */
  .lead-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-grid-2col { grid-template-columns: 1fr; }
  .form-step-indicator { display: flex !important; align-items: center; justify-content: center; gap: 0; margin-bottom: 28px; }
  .step-dot { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.8125rem; font-weight: 700; background: var(--border); color: var(--text-muted); transition: all 0.3s ease-out; flex-shrink: 0; }
  .step-dot.active { background: var(--accent); color: var(--white); }
  .step-dot.done { background: #059669; color: var(--white); }
  .step-line { height: 2px; width: 40px; background: var(--border); flex-shrink: 0; }
  .form-step { display: none; animation: fadeIn 0.3s ease-out; }
  .form-step.active { display: block; }
  .form-step-label { font-size: 0.8125rem; font-weight: 600; color: var(--accent); margin-bottom: 20px; text-transform: uppercase; letter-spacing: 0.04em; }
  .form-step-actions { display: flex; gap: 12px; margin-top: 4px; }
  .form-step-actions .btn { flex: 1; }
  .form-step-message-field { display: none; }

  /* Footer: Accordion */
  .footer-grid { grid-template-columns: 1fr; gap: 0; }
  .footer-brand { margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .footer-accordion-trigger { display: flex !important; align-items: center; justify-content: space-between; cursor: pointer; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,0.08); user-select: none; }
  .footer-acc-icon { display: block !important; transition: transform 0.3s ease-out; color: rgba(255,255,255,0.4); flex-shrink: 0; }
  .footer-accordion-trigger[aria-expanded="true"] .footer-acc-icon { transform: rotate(180deg); }
  .footer-accordion-panel { max-height: 0; overflow: hidden; transition: max-height 0.35s ease-out; }
  .footer-accordion-panel.open { padding-bottom: 16px; }
  .footer-links-split.footer-accordion-panel { padding-top: 12px; }
  .footer-contact.footer-accordion-panel { padding-top: 12px; }
  .compliance-badges { justify-content: center; margin-bottom: 16px; }
  .footer-bottom { flex-direction: column-reverse; text-align: center; gap: 16px; }
}

/* ── RESPONSIVE: 480px ── */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .capabilities-grid { grid-template-columns: 1fr; }
  .dc-metrics { grid-template-columns: repeat(2, 1fr); }
  .form-wrapper { padding: 20px; }
  .problems-grid { margin: 0 -16px; padding-left: 16px; padding-right: 16px; }
  .case-grid { margin: 0 -16px; padding-left: 16px; padding-right: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* ── MODAL ── */
.modal-overlay { position: fixed; inset: 0; z-index: 200; background: rgba(6, 15, 29, 0.6); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); display: flex; align-items: center; justify-content: center; padding: 24px; opacity: 0; visibility: hidden; transition: opacity 0.3s ease-out, visibility 0.3s ease-out; }
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-panel { background: var(--white); border-radius: var(--radius-lg); width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto; position: relative; transform: translateY(20px) scale(0.97); transition: transform 0.3s ease-out; box-shadow: 0 24px 64px rgba(11, 31, 58, 0.25); }
.modal-overlay.active .modal-panel { transform: translateY(0) scale(1); }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 24px 28px 0; }
.modal-header h2 { font-size: 1.25rem; font-weight: 700; }
.modal-close { width: 40px; height: 40px; border-radius: 50%; border: none; background: var(--bg); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background var(--transition); flex-shrink: 0; }
.modal-close:hover { background: var(--border); }
.modal-close:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.modal-body { padding: 24px 28px 28px; }
.modal-body .form-group:last-of-type { margin-bottom: 24px; }

/* Case study modal with two-phase content */
.modal-phase { transition: opacity 0.5s ease-out, transform 0.5s ease-out; }
.modal-phase.phase-out { opacity: 0; transform: translateY(-12px); position: absolute; pointer-events: none; }
.modal-phase.phase-in { opacity: 1; transform: translateY(0); }
.modal-phase.phase-waiting { opacity: 0; transform: translateY(12px); }
.modal-body-phased { position: relative; padding: 24px 28px 28px; min-height: 200px; }
.case-content-text h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: 16px; color: var(--text-primary); }
.case-content-text p { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 12px; }
.case-content-text .kpi-highlight { display: inline-block; background: var(--accent-light); color: var(--accent); font-weight: 700; padding: 2px 10px; border-radius: 4px; }
.phase-timer-bar { height: 3px; background: var(--border); border-radius: 2px; margin-top: 20px; overflow: hidden; }
.phase-timer-bar-fill { height: 100%; background: var(--accent); border-radius: 2px; width: 0; transition: width 5s linear; }
.phase-timer-bar-fill.running { width: 100%; }
.modal-form-intro { text-align: center; margin-bottom: 24px; }
.modal-form-intro p { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }

.btn-readmore { display: inline-flex; align-items: center; justify-content: center; gap: 6px; margin-top: 16px; padding: 10px 24px; font-size: 0.875rem; font-weight: 600; font-family: inherit; color: var(--accent); background: var(--accent-light); border: none; border-radius: var(--radius); cursor: pointer; transition: all var(--transition); align-self: center; }
.btn-readmore:hover { background: var(--accent); color: var(--white); }
.btn-readmore:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* ── FAQ ── */
.faq { background: var(--white); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: border-color var(--transition); }
.faq-item.active { border-color: var(--accent); }
.faq-trigger { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; background: none; border: none; cursor: pointer; font-family: inherit; font-size: 1rem; font-weight: 600; color: var(--text-primary); text-align: left; line-height: 1.4; min-height: 48px; }
.faq-trigger:focus-visible { outline: 3px solid var(--accent); outline-offset: -3px; border-radius: var(--radius-lg); }
.faq-trigger svg { flex-shrink: 0; transition: transform 0.3s ease-out; color: var(--accent); }
.faq-item.active .faq-trigger svg { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease-out; }
.faq-answer-inner { padding: 0 24px 20px; font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.7; }

/* ── THANK YOU / SPINNER ── */
.form-spinner { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 48px 24px; gap: 16px; animation: fadeIn 0.3s ease-out; }
.spinner-ring { width: 44px; height: 44px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; }
.form-spinner p { font-size: 0.9375rem; color: var(--text-muted); font-weight: 500; }
.form-thankyou { text-align: center; padding: 48px 24px; animation: fadeScaleIn 0.4s ease-out; }
.thankyou-icon { width: 64px; height: 64px; border-radius: 50%; background: linear-gradient(135deg, #059669, #10B981); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; color: var(--white); }
.form-thankyou h3 { font-size: 1.375rem; font-weight: 700; margin-bottom: 12px; color: var(--text-primary); }
.form-thankyou p { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.7; max-width: 400px; margin: 0 auto; }
.form-thankyou .trust-line { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); font-size: 0.8125rem; color: var(--text-muted); font-weight: 500; }
.form-thankyou .trust-line svg { color: var(--accent); flex-shrink: 0; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeScaleIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }

/* ── FOOTER 2-COL QUICK LINKS ── */
.footer-links-split { display: grid !important; grid-template-columns: 1fr 1fr; gap: 12px 32px; }
.footer-links-split li { white-space: nowrap; }

/* ── FORM 2-COL GRID ── */
.form-grid-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }

/* ── TRUST CAROUSEL ── */
.trust-carousel-wrapper { overflow: hidden; position: relative; mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent); }
.trust-carousel-track { display: flex; align-items: center; gap: 64px; animation: scrollLogos 30s linear infinite; width: max-content; }
.trust-carousel-track:hover { animation-play-state: paused; }
.trust-logo { font-size: 1.0625rem; font-weight: 700; color: var(--text-primary); opacity: 0.3; white-space: nowrap; flex-shrink: 0; letter-spacing: -0.01em; transition: opacity 0.3s ease-out; user-select: none; cursor: default; }
.trust-logo:hover { opacity: 0.7; }
@keyframes scrollLogos { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ── CASE CARD IMAGE ── */
.case-card-img { width: 100%; height: 180px; object-fit: cover; border-radius: var(--radius); margin-bottom: 20px; }
.case-card { padding: 0; overflow: hidden; }
.case-card-body { padding: 24px 28px 28px; display: flex; flex-direction: column; flex: 1; }
.case-card-body .case-result { width: 100%; }
.case-card-img-wrap { width: 100%; height: 180px; overflow: hidden; }
.case-card-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease-out; }
.case-card:hover .case-card-img-wrap img { transform: scale(1.05); }

@media (max-width: 768px) {
  .form-grid-2col { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .modal-panel { max-width: 100%; }
  .modal-header { padding: 20px 20px 0; }
  .modal-body, .modal-body-phased { padding: 20px; }
  .footer-links-split { grid-template-columns: 1fr; }
}

/* ── MOBILE-ONLY ELEMENTS (hidden on desktop) ── */
.mobile-cta-bar { display: none; }
.case-kpi-mobile { display: none; }
.form-step-indicator { display: none; }
.form-step-label { display: none; }
.form-step-actions { display: none; }
.form-step-next { display: none; }
.form-step-back { display: none; }
.footer-acc-icon { display: none; }
.solution-mobile-diagram { display: none; }

/* Desktop: show all form steps as continuous form */
@media (min-width: 769px) {
  #leadForm { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
  #leadForm .form-step-indicator { display: none !important; }
  #leadForm .form-step { display: contents !important; }
  #leadForm .form-step-label { display: none !important; }
  #leadForm .form-step-next { display: none !important; }
  #leadForm .form-step-back { display: none !important; }
  #leadForm .form-step-actions { display: none !important; }
  #leadForm [data-form-step="3"] .form-step-actions { display: flex !important; grid-column: 1 / -1; }
  #leadForm [data-form-step="3"] .form-step-actions .form-step-back { display: none !important; }
  #leadForm [data-form-step="3"] .form-step-actions .btn[type="submit"] { flex: 1; }
  #leadForm .form-step-message-field { display: block !important; grid-column: 1 / -1; }
}

/* ── MOBILE ARCHITECTURE DIAGRAM ── */
.mob-arch { display: flex; flex-direction: column; align-items: center; gap: 0; padding: 24px 20px; background: linear-gradient(135deg, #F0F4FF 0%, #E8EEFF 100%); border-radius: var(--radius-lg); border: 1px solid rgba(0, 123, 255, 0.12); }
.mob-arch-layer { width: 100%; text-align: center; padding: 16px 20px; border-radius: var(--radius); font-weight: 600; font-size: 0.9375rem; }
.mob-arch-label { display: block; font-weight: 700; color: var(--text-primary); }
.mob-arch-sub { display: block; font-size: 0.75rem; font-weight: 500; color: var(--text-muted); margin-top: 4px; }
.mob-arch-mgmt { background: rgba(0, 123, 255, 0.08); border: 1px solid rgba(0, 123, 255, 0.2); }
.mob-arch-integration { background: rgba(245, 158, 11, 0.08); border: 1px solid rgba(245, 158, 11, 0.25); cursor: pointer; position: relative; }
.mob-arch-integration .mob-arch-label { color: #D97706; }
.mob-arch-tooltip { display: none; margin-top: 12px; padding: 12px 16px; background: var(--primary); color: var(--white); border-radius: var(--radius); font-size: 0.8125rem; font-weight: 500; line-height: 1.6; animation: fadeIn 0.2s ease-out; }
.mob-arch-tooltip.show { display: block; }
.mob-arch-arrow { padding: 8px 0; }
.mob-arch-bottom { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; width: 100%; }
.mob-arch-sys { background: rgba(99, 102, 241, 0.08); border: 1px solid rgba(99, 102, 241, 0.2); padding: 14px 8px; text-align: center; font-weight: 700; font-size: 0.8125rem; color: #6366F1; }

/* ── FOOTER ACCORDION DEFAULTS (desktop: always visible) ── */
.footer-accordion-trigger { display: block; cursor: default; }
.footer-accordion-panel { max-height: none; overflow: visible; }

/* ── SCROLL TO TOP ── */
.scroll-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 90;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 123, 255, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease-out, visibility 0.3s ease-out, transform 0.3s ease-out, background 0.2s ease-out;
}
.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.scroll-top:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 123, 255, 0.45);
}
.scroll-top:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
@media (max-width: 768px) {
  .scroll-top { bottom: 84px; right: 16px; width: 40px; height: 40px; }
  body.has-mobile-cta .scroll-top { bottom: 84px; }
}

/* ── ANIMATIONS ── */
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity 0.5s ease-out, transform 0.5s ease-out; }
.fade-up.visible { opacity: 1; transform: translateY(0); }