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

:root {
  --navy: #1a3a5c;
  --navy-dark: #0f2440;
  --blue: #2563eb;
  --blue-light: #3b82f6;
  --orange: #f97316;
  --orange-light: #fb923c;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-600: #475569;
  --gray-800: #1e293b;
  --white: #ffffff;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.10), 0 4px 8px rgba(0,0,0,0.06);
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--white);
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy);
  color: white;
  padding: 12px 20px;
  z-index: 300;
}

.skip-link:focus {
  left: 0;
}

/* ── NAV ── */
nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
  padding: 0 2rem;
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  z-index: 201;
}

.nav-logo-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.nav-logo-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  color: var(--gray-600);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--navy); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* hamburger — hidden on desktop */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  z-index: 201;
}

.hamburger span {
  display: block;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.2s;
  transform-origin: center;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* mobile overlay menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  top: 64px;
  background: white;
  z-index: 190;
  padding: 24px 2rem 40px;
  flex-direction: column;
  gap: 0;
  overflow-y: auto;
  border-top: 1px solid var(--gray-200);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.22s ease, opacity 0.22s ease;
}

.mobile-menu.open {
  display: flex;
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  display: block;
  padding: 14px 0;
  font-size: 17px;
  font-weight: 500;
  color: var(--gray-800);
  text-decoration: none;
  border-bottom: 1px solid var(--gray-100);
}

.mobile-menu a:hover { color: var(--navy); }

.mobile-menu-cta {
  margin-top: 28px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
}

.btn-primary {
  background: var(--navy);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover { background: var(--navy-dark); }

.btn-orange {
  background: var(--orange);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-orange:hover { opacity: 0.9; }

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--navy);
}

.btn-outline:hover { background: var(--gray-50); }

.btn-outline-white {
  background: transparent;
  color: white;
  border: 1.5px solid rgba(255,255,255,0.5);
}

.btn-outline-white:hover { background: rgba(255,255,255,0.1); }

.btn-lg {
  padding: 13px 28px;
  font-size: 15px;
  border-radius: var(--radius-md);
}

.btn-full { width: 100%; justify-content: center; padding: 14px 20px; font-size: 15px; }

/* ── HERO ── */
.hero {
  background: var(--navy);
  padding: 116px 2rem 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 60%;
  height: 160%;
  background: radial-gradient(ellipse, rgba(37,99,235,0.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.15;
  color: white;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero h1 span { color: var(--orange-light); }

.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  line-height: 1.65;
  margin-bottom: 36px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-visual {
  width: 100%;
  max-width: 460px;
  min-width: 0;
  margin-inline: auto;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.hero-visual-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background: #ef4444; }
.dot-yellow { background: #eab308; }
.dot-green { background: #22c55e; }

.hero-visual-title {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  font-weight: 500;
  margin-left: 4px;
}

.schematic-preview {
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-md);
  padding: 20px;
}

.schematic-img-placeholder {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.schematic-img-placeholder img {
  display: block;
  width: 100%;
  height: auto;
}

.marker-info {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
}

.marker-badge {
  background: rgba(249,115,22,0.2);
  border: 1px solid rgba(249,115,22,0.4);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 11px;
  color: var(--orange-light);
  font-weight: 600;
}

.marker-label {
  font-size: 11px;
  color: rgba(255,255,255,0.5);
}

/* ── SECTIONS ── */
section { padding: 96px 2rem; }

.section-inner { max-width: 1120px; margin: 0 auto; }

.section-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--orange);
  margin-bottom: 12px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -0.3px;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 18px;
  color: var(--gray-600);
  line-height: 1.65;
  max-width: 580px;
  margin-bottom: 56px;
}

/* ── AUDIENCE CARDS ── */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.audience-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: box-shadow 0.2s;
}

.audience-card:hover { box-shadow: var(--shadow-lg); }

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 22px;
}

.icon-blue { background: #eff6ff; }
.icon-orange { background: #fff7ed; }
.icon-navy { background: #f0f4f8; }

.card-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--gray-400);
  margin-bottom: 8px;
}

.audience-card h3 { font-size: 20px; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.audience-card p { font-size: 14px; color: var(--gray-600); line-height: 1.65; margin-bottom: 24px; }

.card-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
}

.card-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--gray-600);
}

.card-list li::before {
  content: '';
  width: 18px;
  height: 18px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 1px;
  background: #dcfce7;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3 8l3.5 3.5L13 4.5' stroke='%2316a34a' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: 12px;
  background-repeat: no-repeat;
  background-position: center;
}

.card-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
}

.card-link:hover { color: var(--navy); }

/* ── HOW IT WORKS ── */
.how-bg { background: var(--gray-50); border-top: 1px solid var(--gray-200); border-bottom: 1px solid var(--gray-200); }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  position: relative;
  margin-top: 16px;
}

.steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--gray-200);
  z-index: 0;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 16px;
  position: relative;
  z-index: 1;
}

.step-num {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
  font-weight: 700;
  color: var(--navy);
  box-shadow: var(--shadow-sm);
}

.step-num.active { background: var(--navy); border-color: var(--navy); color: white; }
.step h3 { font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--gray-600); line-height: 1.55; }

/* ── FEATURES ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: #eff6ff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.feature-card h3 { font-size: 16px; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--gray-600); line-height: 1.6; }

/* ── ANALYTICS ── */
.analytics-section { background: var(--white); }

.analytics-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.analytics-dashboard {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.dashboard-bar {
  background: var(--navy);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dashboard-bar span { font-size: 12px; color: rgba(255,255,255,0.6); font-weight: 500; margin-left: 4px; }

.dashboard-body { padding: 20px; }

.kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.kpi {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.kpi-label { font-size: 10px; color: var(--gray-400); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.kpi-val { font-size: 20px; font-weight: 700; color: var(--navy); line-height: 1; }
.kpi-change { font-size: 11px; font-weight: 600; margin-top: 4px; }
.kpi-up { color: #16a34a; }
.kpi-down { color: #dc2626; }

.chart-placeholder {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 16px;
  height: 120px;
  display: flex;
  align-items: flex-end;
  gap: 4px;
  overflow: hidden;
}

.bar-item { flex: 1; border-radius: 2px 2px 0 0; min-width: 0; }

/* ── DEMO FORM ── */
.demo-section {
  padding: 96px 2rem;
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
}

.demo-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.demo-left h2 {
  font-size: 34px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -0.3px;
  margin-bottom: 14px;
}

.demo-left p {
  font-size: 16px;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 32px;
}

.demo-perks {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.demo-perk {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.perk-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: #eff6ff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
}

.perk-text strong { display: block; font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 2px; }
.perk-text span { font-size: 13px; color: var(--gray-600); line-height: 1.5; }

/* form card */
.demo-form-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}

.demo-form-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 14px;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-800);
}

.form-group label span {
  color: var(--orange);
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 13px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--gray-800);
  background: white;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.08);
}

.form-group textarea { resize: vertical; min-height: 90px; }

.form-group select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%2394a3b8' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 16px; padding-right: 36px; }

.form-note {
  font-size: 12px;
  color: var(--gray-400);
  margin-top: 10px;
  text-align: center;
}

/* success state */
.form-success {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px 0;
  gap: 14px;
}

.success-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #dcfce7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.form-success h4 { font-size: 20px; font-weight: 700; color: var(--navy); }
.form-success p { font-size: 14px; color: var(--gray-600); line-height: 1.6; max-width: 300px; }

/* ── FOOTER ── */
footer { background: var(--gray-800); padding: 48px 2rem 32px; }

.footer-inner { max-width: 1120px; margin: 0 auto; }

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-bottom: 14px;
}

.footer-logo-mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  object-fit: contain;
  background: #fff;
  border-radius: 6px;
  padding: 3px;
}

.footer-logo-text { font-size: 14px; font-weight: 600; color: rgba(255,255,255,0.75); }

.footer-tagline { font-size: 13px; color: rgba(255,255,255,0.5); line-height: 1.6; max-width: 240px; }

.footer-col h3 { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.8px; color: rgba(255,255,255,0.4); margin-bottom: 16px; }

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

.footer-col ul a { font-size: 13px; color: rgba(255,255,255,0.55); text-decoration: none; transition: color 0.15s; }
.footer-col ul a:hover { color: rgba(255,255,255,0.9); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy { font-size: 12px; color: rgba(255,255,255,0.65); }
.footer-address { font-size: 12px; color: rgba(255,255,255,0.55); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  /* nav */
  .nav-links { display: none; }
  .hamburger { display: flex; }

  /* hero */
  .hero { padding: 84px 1.5rem 56px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 16px; }

  /* sections */
  section { padding: 64px 1.5rem; }
  .section-title { font-size: 28px; }
  .section-sub { font-size: 16px; }

  /* grids */
  .audience-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; gap: 32px; }
  .steps::before { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .analytics-inner { grid-template-columns: 1fr; }

  /* demo */
  .demo-section { padding: 64px 1.5rem; }
  .demo-inner { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }

  /* footer */
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
}

@media (max-width: 520px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .demo-form-card { padding: 24px; }
  nav { padding: 0 1rem; }
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-error {
  margin-top: 12px;
  font-size: 14px;
  color: #b91c1c;
}