:root {
  --dark: #0b1c2d;
  --blue: #4da3ff;
  --grey: #8fafc9;
  --white: #ffffff;
  --bg: #f4f7fb;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--dark);
}

/* ================= NAVBAR ================= */

.nav-shell {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 999;
  background: linear-gradient(
    180deg,
    rgba(11, 28, 45, 0.92),
    rgba(11, 28, 45, 0.7)
  );
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-inner {
  max-width: 1300px;
  margin: auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Brand */
.brand {
  text-align: center;
  line-height: 1.1;
}

.brand-main {
  display: block;
  font-size: 22px;
  letter-spacing: 4px;
  font-weight: 700;
  color: var(--white);
  text-shadow: 0 0 14px rgba(77, 163, 255, 0.4);
}

.brand-sub {
  display: block;
  font-size: 11px;
  letter-spacing: 6px;
  font-weight: 500;
  color: var(--grey);
  margin-top: 4px;
}

/* Nav groups */
.nav-group {
  display: flex;
  gap: 26px;
}

.nav-group a {
  position: relative;
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 1.5px;
  color: var(--grey);
  transition: 0.35s;
}

.nav-group a::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent,
    rgba(77, 163, 255, 0.35),
    transparent
  );
  opacity: 0;
  transition: 0.35s;
}

.nav-group a:hover {
  color: var(--white);
}

.nav-group a:hover::before {
  opacity: 1;
}

/* CTA */
.nav-cta {
  padding: 6px 16px;
  border: 1px solid rgba(77, 163, 255, 0.6);
  border-radius: 30px;
  color: var(--white) !important;
  transition: 0.4s;
}

.nav-cta:hover {
  background: rgba(77, 163, 255, 0.15);
  box-shadow: inset 0 0 18px rgba(77, 163, 255, 0.6);
}

/* ================= SECTIONS ================= */

.section {
  min-height: 100vh;
  padding-top: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 42px;
  font-weight: 600;
}

.hero {
  background: radial-gradient(circle at top, #1b3b5f, var(--dark));
  color: var(--white);
}

.dark {
  background: #0f253c;
  color: var(--white);
}
/* ================= HERO SECTION ================= */

.hero-core {
  position: relative;
  min-height: 100vh;
  background: radial-gradient(circle at top, #162f4a, #0b1c2d);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #ffffff;
}

/* Background glow */
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      circle at 20% 20%,
      rgba(77, 163, 255, 0.18),
      transparent 40%
    ),
    radial-gradient(
      circle at 80% 60%,
      rgba(143, 175, 201, 0.15),
      transparent 45%
    );
  z-index: 0;
}

/* Fake SVG grid illusion */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(circle at center, black 45%, transparent 70%);
  animation: gridFloat 20s linear infinite;
  z-index: 1;
}

@keyframes gridFloat {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 600px 600px;
  }
}

/* Content */
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 20px;
}

/* Title */
.hero-title {
  font-size: 64px;
  font-weight: 700;
  letter-spacing: 6px;
  line-height: 1.05;
  text-shadow: 0 0 25px rgba(77, 163, 255, 0.45);
}

.hero-title .thin {
  display: block;
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 10px;
  margin-top: 12px;
  color: #8fafc9;
}

/* Tagline */
.hero-tagline {
  margin-top: 28px;
  font-size: 18px;
  line-height: 1.6;
  color: #cfdbea;
}

/* Buttons */
.hero-actions {
  margin-top: 42px;
  display: flex;
  gap: 22px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-btn {
  padding: 14px 30px;
  font-size: 14px;
  letter-spacing: 1.5px;
  text-decoration: none;
  border-radius: 30px;
  transition: 0.4s;
}

/* Primary */
.hero-btn.primary {
  background: linear-gradient(135deg, #4da3ff, #7fc4ff);
  color: #0b1c2d;
  box-shadow: 0 0 28px rgba(77, 163, 255, 0.45);
}

.hero-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(77, 163, 255, 0.7);
}

/* Ghost */
.hero-btn.ghost {
  border: 1px solid rgba(143, 175, 201, 0.6);
  color: #ffffff;
}

.hero-btn.ghost:hover {
  background: rgba(143, 175, 201, 0.15);
}
/* ================= CAPABILITIES SECTION ================= */

.capabilities {
  min-height: 100vh;
  padding: 140px 6vw;
  background:
    radial-gradient(
      circle at top right,
      rgba(77, 163, 255, 0.12),
      transparent 40%
    ),
    #0b1c2d;
  color: #ffffff;
}

/* Header */
.cap-header {
  max-width: 720px;
  margin-bottom: 80px;
}

.cap-header h2 {
  font-size: 42px;
  letter-spacing: 4px;
  font-weight: 700;
}

.cap-header h2 span {
  display: block;
  font-size: 14px;
  letter-spacing: 6px;
  color: #8fafc9;
  margin-bottom: 12px;
}

.cap-header p {
  margin-top: 20px;
  font-size: 17px;
  line-height: 1.6;
  color: #cfdbea;
}

/* Grid */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

/* Card */
.cap-card {
  position: relative;
  padding: 36px 28px 42px;
  background: linear-gradient(
    160deg,
    rgba(255, 255, 255, 0.06),
    rgba(255, 255, 255, 0.01)
  );
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  transition: 0.45s;
  overflow: hidden;
}

/* Light sweep illusion */
.cap-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent,
    rgba(77, 163, 255, 0.25),
    transparent
  );
  opacity: 0;
  transition: 0.45s;
}

/* Index */
.cap-index {
  font-size: 48px;
  font-weight: 700;
  color: rgba(143, 175, 201, 0.25);
  margin-bottom: 24px;
}

/* Title */
.cap-card h3 {
  font-size: 20px;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

/* Text */
.cap-card p {
  font-size: 15px;
  line-height: 1.6;
  color: #cfdbea;
}

/* Hover */
.cap-card:hover {
  transform: translateY(-6px);
  border-color: rgba(77, 163, 255, 0.5);
}

.cap-card:hover::before {
  opacity: 1;
}
/* ================= ABOUT SECTION ================= */

.about-core {
  padding: 140px 6vw;
  background:
    radial-gradient(
      circle at bottom left,
      rgba(77, 163, 255, 0.1),
      transparent 40%
    ),
    #f4f7fb;
  color: #0b1c2d;
}

.about-grid {
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}

/* Text Side */
.about-text h2 {
  font-size: 40px;
  line-height: 1.2;
  font-weight: 700;
}

.about-text h2 span {
  display: block;
  font-size: 13px;
  letter-spacing: 6px;
  color: #4da3ff;
  margin-bottom: 14px;
}

.about-text p {
  font-size: 16px;
  line-height: 1.7;
  margin-top: 18px;
  color: #324b63;
}

.about-text .lead {
  font-size: 18px;
  color: #0b1c2d;
}

/* Points */
.about-points {
  margin-top: 40px;
  display: grid;
  gap: 18px;
}

.point {
  display: flex;
  align-items: center;
  gap: 18px;
}

.point span {
  font-size: 22px;
  font-weight: 700;
  color: rgba(77, 163, 255, 0.6);
}

/* Visual Side */
.about-visual {
  position: relative;
}

.visual-panel {
  padding: 46px 36px;
  background: linear-gradient(
    160deg,
    rgba(11, 28, 45, 0.95),
    rgba(11, 28, 45, 0.85)
  );
  color: #ffffff;
  border-radius: 12px;
  box-shadow: 0 30px 80px rgba(11, 28, 45, 0.25);
}

/* Stats */
.stat {
  margin-bottom: 32px;
}

.stat:last-child {
  margin-bottom: 0;
}

.stat h3 {
  font-size: 36px;
  font-weight: 700;
  color: #4da3ff;
}

.stat p {
  margin-top: 6px;
  font-size: 14px;
  color: #cfdbea;
}

/* Responsive */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }
}
/* ================= SOLUTIONS SECTION ================= */

.solutions-core {
  padding: 140px 6vw;
  background: linear-gradient(180deg, #0b1c2d, #0f253c);
  color: #ffffff;
}

/* Header */
.solutions-header {
  max-width: 760px;
  margin-bottom: 90px;
}

.solutions-header h2 {
  font-size: 42px;
  font-weight: 700;
  letter-spacing: 3px;
}

.solutions-header h2 span {
  display: block;
  font-size: 13px;
  letter-spacing: 6px;
  color: #8fafc9;
  margin-bottom: 14px;
}

.solutions-header p {
  margin-top: 20px;
  font-size: 17px;
  line-height: 1.6;
  color: #cfdbea;
}

/* List */
.solutions-list {
  max-width: 1100px;
  margin: auto;
  display: grid;
  gap: 36px;
}

/* Row */
.solution-row {
  position: relative;
  padding: 34px 38px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(
    160deg,
    rgba(255, 255, 255, 0.06),
    rgba(255, 255, 255, 0.015)
  );
  backdrop-filter: blur(10px);
  transition: 0.45s;
}

/* Left meta */
.solution-meta {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-bottom: 16px;
}

.solution-meta span {
  font-size: 28px;
  font-weight: 700;
  color: rgba(77, 163, 255, 0.45);
}

.solution-meta h3 {
  font-size: 20px;
  letter-spacing: 1px;
}

/* Text */
.solution-row p {
  font-size: 15px;
  line-height: 1.7;
  color: #cfdbea;
  max-width: 800px;
}

/* Hover effect */
.solution-row::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent,
    rgba(77, 163, 255, 0.25),
    transparent
  );
  opacity: 0;
  transition: 0.45s;
}

.solution-row:hover {
  transform: translateX(6px);
  border-color: rgba(77, 163, 255, 0.45);
}

.solution-row:hover::before {
  opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
  .solution-row {
    padding: 30px 26px;
  }
}
/* ================= CONTACT SECTION ================= */

.contact-core {
  padding: 140px 6vw;
  background:
    radial-gradient(circle at top left, rgba(77,163,255,0.12), transparent 45%),
    #0b1c2d;
  color: #ffffff;
}

/* Header */
.contact-header {
  max-width: 720px;
  margin-bottom: 90px;
}

.contact-header h2 {
  font-size: 42px;
  font-weight: 700;
  letter-spacing: 3px;
}

.contact-header h2 span {
  display: block;
  font-size: 13px;
  letter-spacing: 6px;
  color: #8FAFC9;
  margin-bottom: 14px;
}

.contact-header p {
  margin-top: 20px;
  font-size: 17px;
  line-height: 1.6;
  color: #cfdbea;
}

/* Grid */
.contact-grid {
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}

/* Info */
.contact-info {
  display: grid;
  gap: 32px;
}

.info-block h4 {
  font-size: 14px;
  letter-spacing: 3px;
  color: #8FAFC9;
  margin-bottom: 10px;
}

.info-block p {
  font-size: 16px;
  line-height: 1.6;
  color: #ffffff;
}

/* Visual */
.contact-visual {
  position: relative;
}

.visual-card {
  position: relative;
  padding: 50px 40px;
  background:
    linear-gradient(
      160deg,
      rgba(255,255,255,0.06),
      rgba(255,255,255,0.015)
    );
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(12px);
}

.visual-card h3 {
  font-size: 26px;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.visual-card p {
  font-size: 15px;
  line-height: 1.7;
  color: #cfdbea;
}

/* Decorative lines (fake-SVG feel) */
.visual-lines {
  margin-top: 36px;
  display: grid;
  gap: 10px;
}

.visual-lines span {
  height: 2px;
  width: 60%;
  background: linear-gradient(
    90deg,
    rgba(77,163,255,0.6),
    transparent
  );
}

/* Responsive */
@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }
}
/* ================= FOOTER ================= */

.site-footer {
  background:
    linear-gradient(180deg, #0f253c, #0b1c2d);
  color: #ffffff;
}

.footer-inner {
  max-width: 1200px;
  margin: auto;
  padding: 90px 6vw 60px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 80px;
}

/* Brand */
.footer-brand h3 {
  font-size: 26px;
  letter-spacing: 3px;
  line-height: 1.1;
}

.footer-brand h3 span {
  display: block;
  font-size: 12px;
  letter-spacing: 6px;
  color: #8FAFC9;
  margin-top: 6px;
}

.footer-brand p {
  margin-top: 22px;
  font-size: 15px;
  line-height: 1.7;
  color: #cfdbea;
  max-width: 360px;
}

/* Navigation */
.footer-nav h4,
.footer-contact h4 {
  font-size: 14px;
  letter-spacing: 3px;
  color: #8FAFC9;
  margin-bottom: 22px;
}

.footer-nav a {
  display: block;
  margin-bottom: 14px;
  text-decoration: none;
  font-size: 14px;
  color: #ffffff;
  transition: 0.3s;
}

.footer-nav a:hover {
  color: #4DA3FF;
}

/* Contact */
.footer-contact p {
  font-size: 14px;
  line-height: 1.7;
  color: #cfdbea;
}

.footer-email,
.footer-domain {
  margin-top: 12px;
  color: #ffffff;
}

/* Bottom */
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 6vw;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #8FAFC9;
}

/* Responsive */
@media (max-width: 900px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 60px;
  }
}
/* ================= MOBILE FIRST BASE ================= */

@media (max-width: 768px) {

  body {
    font-size: 15px;
  }

  section {
    padding-left: 6vw;
    padding-right: 6vw;
  }

}
@media (max-width: 768px) {

  .nav-inner {
    flex-direction: column;
    gap: 18px;
  }

  .nav-group {
    gap: 18px;
  }

  .brand-main {
    font-size: 20px;
    letter-spacing: 3px;
  }

  .brand-sub {
    font-size: 10px;
    letter-spacing: 5px;
  }

}
@media (max-width: 768px) {

  .hero-title {
    font-size: 42px;
    letter-spacing: 4px;
  }

  .hero-title .thin {
    font-size: 16px;
    letter-spacing: 6px;
  }

  .hero-tagline {
    font-size: 16px;
  }

  .hero-actions {
    gap: 16px;
  }

  .hero-btn {
    width: 100%;
    text-align: center;
  }

}
@media (max-width: 768px) {

  .cap-header h2 {
    font-size: 34px;
  }

  .cap-card {
    padding: 30px 24px 36px;
  }

  .cap-index {
    font-size: 40px;
  }

}
@media (max-width: 900px) {

  .about-text h2 {
    font-size: 34px;
  }

  .visual-panel {
    padding: 40px 28px;
  }

}
@media (max-width: 768px) {

  .solutions-header h2 {
    font-size: 34px;
  }

  .solution-meta h3 {
    font-size: 18px;
  }

  .solution-row {
    transform: none !important;
  }

}
@media (max-width: 900px) {

  .contact-header h2 {
    font-size: 34px;
  }

  .visual-card {
    padding: 40px 28px;
  }

}
@media (max-width: 900px) {

  .footer-brand h3 {
    font-size: 22px;
  }

  .footer-inner {
    text-align: left;
  }

}