:root {
  --navy: #071a45;
  --navy-2: #0a255f;
  --navy-3: #112f73;
  --blue: #5f8ff7;
  --blue-2: #7ea7ff;
  --blue-3: #a9c3ff;
  --light-blue: #edf3ff;
  --soft-bg: #f7f9fe;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: #ffffff;
  --card: #f3f7ff;
  --text: #162033;
  --muted: #607089;
  --line: #e5ebf5;
  --white: #ffffff;

  --shadow-sm: 0 6px 18px rgba(9, 26, 61, 0.06);
  --shadow-md: 0 14px 40px rgba(9, 26, 61, 0.10);
  --shadow-lg: 0 24px 70px rgba(8, 20, 54, 0.16);

  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-pill: 999px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(126, 167, 255, 0.08), transparent 20%),
    linear-gradient(180deg, #f8fbff 0%, #f6f8fd 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.container {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
}

.section-label {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
}

.section-underline {
  width: 44px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--blue), var(--blue-2));
  margin: 16px 0 22px;
}

.no-margin {
  margin-bottom: 0;
}

.mt-16 {
  margin-top: 16px;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  background: linear-gradient(135deg, #5f8ff7, #7ea7ff);
  color: var(--white);
  border-radius: 12px;
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 12px 28px rgba(95, 143, 247, 0.34);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.02);
  box-shadow: 0 16px 36px rgba(95, 143, 247, 0.42);
}

.email-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  padding: 13px 18px;
  background: linear-gradient(180deg, #081c48 0%, #051632 100%);
  color: white;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  box-shadow: var(--shadow-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.email-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 26, 69, 0.96);
  color: white;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 20px;
}

.logo {
  font-size: 21px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.86);
}

.nav a {
  position: relative;
}

.nav a:hover {
  color: white;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--blue-2);
  transition: width 0.2s ease;
}

.nav a:hover::after {
  width: 100%;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 0% 100%, rgba(123, 167, 255, 0.16), transparent 28%),
    linear-gradient(180deg, #f8fbff 0%, #f4f8ff 100%);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(120, 160, 255, 0.14);
  pointer-events: none;
}

.hero::before {
  width: 980px;
  height: 980px;
  right: 110px;
  top: -690px;
}

.hero::after {
  width: 780px;
  height: 780px;
  right: 180px;
  top: -540px;
}

.hero-wave {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 65% 58%, transparent 0 33%, rgba(126, 167, 255, 0.08) 33.2%, transparent 33.8%),
    radial-gradient(circle at 68% 62%, transparent 0 38%, rgba(126, 167, 255, 0.08) 38.2%, transparent 38.8%),
    radial-gradient(circle at 70% 66%, transparent 0 43%, rgba(126, 167, 255, 0.08) 43.2%, transparent 43.8%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
  padding: 54px 0 44px;
}

.hero-left h1 {
  margin: 0 0 10px;
  font-size: 76px;
  line-height: 0.95;
  letter-spacing: -0.06em;
  font-weight: 900;
  color: var(--navy);
}

.hero-left h2 {
  max-width: 600px;
  margin: 0 0 24px;
  font-size: 25px;
  line-height: 1.08;
  color: var(--blue);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.hero-left p {
  max-width: 560px;
  margin: 0;
  font-size: 18px;
  line-height: 1.65;
  color: #2d3a4d;
  font-weight: 500;
}

.pill-row {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.52);
  border: 1px solid rgba(95,143,247,0.12);
  box-shadow: 0 4px 12px rgba(8, 20, 54, 0.04);
  font-size: 14px;
  font-weight: 700;
  color: #53627a;
}

.dot {
  position: relative;
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  box-shadow: 0 4px 10px rgba(95, 143, 247, 0.35);
}

.dot::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 4px;
  width: 8px;
  height: 5px;
  border-left: 2px solid white;
  border-bottom: 2px solid white;
  transform: rotate(-45deg);
}

.hero-card {
  min-height: 286px;
  margin-top: 8px;
  padding: 28px 28px 28px;
  border-radius: 22px;
  color: white;
  background: linear-gradient(180deg, #041a48 0%, #020f2d 100%);
  box-shadow: 0 30px 70px rgba(4, 17, 44, 0.26);
  border: 1px solid rgba(126, 167, 255, 0.08);
}

.hero-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  border-radius: 16px;
  color: #90b4ff;
  background: rgba(95, 143, 247, 0.10);
  border: 1px solid rgba(126, 167, 255, 0.16);
}

.hero-card h3 {
  max-width: 280px;
  margin: 0;
  font-size: 17px;
  line-height: 1.4;
  color: #79a4ff;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-weight: 800;
}

.hero-card-line {
  width: 40px;
  height: 2px;
  margin: 20px 0;
  background: rgba(151, 186, 255, 0.85);
}

.hero-card p {
  max-width: 320px;
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.9);
}

/* Split section */
.split-section {
  background: transparent;
  border-bottom: 1px solid var(--line);
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(10px);
  border-radius: 0;
}

.split-col {
  min-height: 430px;
  padding: 38px 40px 38px;
}

.split-col + .split-col {
  border-left: 1px solid var(--line);
}

.split-col h2 {
  max-width: 370px;
  margin: 0;
  font-size: 24px;
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #172133;
}

.intro {
  max-width: 470px;
  margin: 0 0 28px;
  font-size: 16px;
  line-height: 1.7;
  color: #58677c;
}

.mini-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 22px;
}

.mini-card {
  padding: 10px 8px 6px;
  border-radius: 14px;
  transition: transform 0.2s ease;
}

.mini-card:hover {
  transform: translateY(-2px);
}

.mini-icon,
.feature-icon,
.relevance-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  background: linear-gradient(180deg, #f5f8ff 0%, #ebf2ff 100%);
  border: 1px solid #dce6fb;
  box-shadow: 0 8px 16px rgba(95,143,247,0.08);
}

.mini-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 12px;
  border-radius: 50%;
}

.mini-card h4 {
  margin: 0;
  font-size: 14px;
  line-height: 1.45;
  font-weight: 800;
  color: #263046;
}

.challenge-insight {
  max-width: 470px;
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.7;
  color: #46566d;
  font-weight: 600;
}

.highlight-box,
.soft-note {
  padding: 13px 16px;
  border-radius: 14px;
  background: linear-gradient(180deg, #f4f7fd 0%, #edf3fc 100%);
  color: #506076;
  font-size: 15px;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.6);
}

.highlight-box {
  display: inline-block;
  margin: 0 0 20px;
}

.soft-note {
  max-width: 490px;
  margin-top: 22px;
}

.model-insight {
  max-width: 490px;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: #4f6076;
  font-weight: 600;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 8px;
}

.feature-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  align-items: start;
}

.feature-icon {
  width: 40px;
  height: 40px;
  margin-top: 2px;
  border-radius: 50%;
}

.feature-item h4 {
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.35;
  font-weight: 800;
  color: #243046;
}

.feature-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: #5b6679;
}

/* Dark band */
.dark-band {
  position: relative;
  overflow: hidden;
  color: white;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 20% 50%, rgba(86, 133, 255, 0.10), transparent 20%),
    radial-gradient(circle at 90% 55%, rgba(86, 133, 255, 0.14), transparent 25%),
    linear-gradient(180deg, #041632 0%, #031025 100%);
}

.dark-band::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 85% 60%, transparent 0 18%, rgba(116, 163, 255, 0.10) 18.15%, transparent 18.6%),
    radial-gradient(circle at 85% 60%, transparent 0 26%, rgba(116, 163, 255, 0.09) 26.15%, transparent 26.6%),
    radial-gradient(circle at 85% 60%, transparent 0 34%, rgba(116, 163, 255, 0.07) 34.15%, transparent 34.6%);
}

.dark-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

.dark-col {
  min-height: 310px;
  padding: 36px 40px 40px;
}

.dark-col .section-label {
  color: #67a0ff;
}

.dark-col .section-underline {
  background: linear-gradient(90deg, #67a0ff, #8bb5ff);
}

.dark-col h2 {
  margin: 0;
  font-size: 23px;
  line-height: 1.15;
  font-weight: 800;
  color: white;
  letter-spacing: -0.03em;
}

.dark-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.dark-card {
  min-height: 162px;
  padding: 18px 16px;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.035));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 26px rgba(0,0,0,0.18);
  backdrop-filter: blur(10px);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.dark-card:hover {
  transform: translateY(-2px);
  border-color: rgba(126,167,255,0.18);
}

.icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-bottom: 14px;
  border-radius: 12px;
  color: #7da8ff;
  background: rgba(95, 143, 247, 0.12);
}

.dark-card h4 {
  margin: 0 0 10px;
  color: white;
  font-size: 15px;
  line-height: 1.35;
  font-weight: 800;
}

.dark-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 13px;
  line-height: 1.6;
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 12px;
  align-items: start;
  font-size: 15px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
}

.check {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  box-shadow: 0 8px 18px rgba(95,143,247,0.32);
}

.check::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  width: 8px;
  height: 5px;
  border-left: 2px solid white;
  border-bottom: 2px solid white;
  transform: rotate(-45deg);
}

.engage-bridge {
  margin: 18px 0 0;
  max-width: 560px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  line-height: 1.7;
  font-weight: 500;
}

/* Four columns */
.four-col-section {
  background: rgba(255,255,255,0.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.four-col-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 0.95fr;
}

.info-col {
  position: relative;
  min-height: 350px;
  padding: 34px 28px;
}

.info-col + .info-col {
  border-left: 1px solid var(--line);
}

.info-col h3 {
  max-width: 260px;
  margin: 0;
  font-size: 18px;
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #1c2433;
}

.info-col p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: #596579;
}

.timeline {
  position: relative;
  margin-top: 22px;
  padding-left: 4px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: linear-gradient(180deg, #dce6fb, #e8eef9);
}

.timeline-item {
  position: relative;
  padding-left: 48px;
  margin-bottom: 26px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-num {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--blue);
  background: linear-gradient(180deg, #f6f9ff 0%, #eaf1ff 100%);
  border: 1px solid #dce6fb;
  box-shadow: 0 8px 16px rgba(95,143,247,0.08);
  font-size: 14px;
  font-weight: 800;
}

.timeline-item h4 {
  margin: 0 0 6px;
  font-size: 14px;
  line-height: 1.35;
  font-weight: 800;
  color: #243046;
}

.timeline-item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
}

.plain-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.plain-list li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: start;
  font-size: 14px;
  line-height: 1.65;
  color: #4e5b71;
}

.plain-list li::before {
  content: "✓";
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, #5f8ff7, #7ea7ff);
  color: white;
  font-size: 12px;
  font-weight: bold;
  box-shadow: 0 4px 10px rgba(95,143,247,0.4);
}

.relevance-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 24px;
}

.relevance-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: start;
}

.relevance-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
}

.relevance-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: #4f5b71;
}

/* Statement band */
.statement-band {
  position: relative;
  overflow: hidden;
  color: white;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 8% 105%, rgba(95, 143, 247, 0.20), transparent 25%),
    radial-gradient(circle at 98% 50%, rgba(95, 143, 247, 0.16), transparent 26%),
    linear-gradient(180deg, #041632 0%, #031126 100%);
}

.statement-band::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 10% 100%, transparent 0 25%, rgba(120, 164, 255, 0.12) 25.15%, transparent 25.6%),
    radial-gradient(circle at 92% 0%, transparent 0 30%, rgba(120, 164, 255, 0.08) 30.15%, transparent 30.6%);
}

.statement-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
  padding: 42px 0;
}

.statement-left h2 {
  max-width: 620px;
  margin: 0;
  font-size: 27px;
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.statement-left .accent {
  color: var(--blue);
}

.statement-right p {
  max-width: 540px;
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.84);
}

.statement-right p strong {
  color: white;
  font-size: 17px;
}

.statement-note {
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.94);
  font-weight: 600;
}

/* Contact strip */
.contact-strip {
  background: rgba(255,255,255,0.84);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 0.8fr;
  align-items: center;
}

.contact-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 126px;
  padding: 30px 26px;
}

.contact-col + .contact-col {
  border-left: 1px solid var(--line);
}

.contact-col h3 {
  max-width: 360px;
  margin: 0;
  font-size: 18px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #1f2736;
}

.contact-col small {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  color: #637087;
}

.bottom-underline {
  margin-bottom: 0;
}

.brand-block .brand {
  margin-bottom: 8px;
  font-size: 22px;
  font-weight: 900;
  color: var(--navy);
  letter-spacing: -0.04em;
}

.brand-block p {
  max-width: 250px;
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: #5f6b80;
}

/* Footer */
.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.84);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 46px;
  padding: 10px 0;
  font-size: 13px;
}

.linkedin {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: white;
  color: var(--navy);
  font-size: 14px;
  font-weight: 800;
}

/* Icons */
.svg-icon {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.svg-icon.sm {
  width: 18px;
  height: 18px;
}

.svg-icon.lg {
  width: 28px;
  height: 28px;
}

/* Hero card top alignment */
.hero-card-top {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.hero-card-top .hero-card-icon {
  margin-bottom: 0;
  flex-shrink: 0;
}

.hero-card-top h3 {
  margin: 2px 0 0;
  max-width: 250px;
  font-size: 16px;
  line-height: 1.35;
}

/* Responsive */
@media (max-width: 1100px) {
  .hero-grid,
  .split-grid,
  .dark-grid,
  .four-col-grid,
  .statement-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .split-col + .split-col,
  .info-col + .info-col,
  .contact-col + .contact-col {
    border-left: none;
    border-top: 1px solid var(--line);
  }

  .nav {
    display: none;
  }

  .hero-left h1 {
    font-size: 62px;
  }

  .dark-cards,
  .mini-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(1240px, calc(100% - 28px));
  }

  .header-inner {
    min-height: 64px;
  }

  .logo {
    font-size: 20px;
  }

  .btn-primary {
    padding: 10px 14px;
    font-size: 13px;
  }

  .hero-grid {
    padding: 28px 0 24px;
    gap: 28px;
  }

  .hero-left h1 {
    font-size: 48px;
  }

  .hero-left h2 {
    font-size: 20px;
  }

  .hero-left p {
    font-size: 16px;
  }

  .split-col,
  .dark-col,
  .info-col,
  .contact-col {
    padding-left: 18px;
    padding-right: 18px;
  }

  .statement-grid {
    padding: 26px 0;
  }

  .statement-left h2 {
    font-size: 22px;
  }

  .contact-col h3 {
    font-size: 17px;
  }
}