:root {
  color-scheme: dark;
  --bg: #071423;
  --bg-soft: #0c1e37;
  --text: #f8fbff;
  --muted: #b0bed7;
  --accent: #2fb4ff;
  --accent-strong: #00d1ff;
  --card: #0f1b33;
  --surface: rgba(255,255,255,0.06);
  --surface-strong: rgba(255,255,255,0.12);
  --shadow: 0 22px 55px rgba(0, 75, 160, 0.16);
}

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

body {
  font-family: Inter, Arial, Helvetica, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: radial-gradient(circle at 20% 10%, rgba(47,180,255,0.12), transparent 25%),
    linear-gradient(180deg, var(--bg), var(--bg-soft));
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.hero-section {
  min-height: 94vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(10, 25, 47, 0.98), rgba(7, 20, 35, 0.95));
  padding-bottom: 2rem;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 10%;
  right: -8%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(47,180,255,0.28), transparent 55%);
  filter: blur(42px);
  animation: float 12s ease-in-out infinite;
  pointer-events: none;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -16%;
  left: -10%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0,209,255,0.18), transparent 45%);
  filter: blur(54px);
  pointer-events: none;
}

@keyframes float {
  0%, 100% { transform: translateX(0px) translateY(0px); }
  50% { transform: translateX(-22px) translateY(10px); }
}

.navbar-brand,
.nav-link {
  color: var(--text) !important;
}

.container {
  max-width: 1200px;
}

.navbar {
  background: transparent;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent) !important;
}

.glass-card,
.feature-card,
.contact-card,
.info-box {
  background: var(--surface);
  backdrop-filter: blur(14px);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.navbar-nav .nav-link {
  transition: color 0.2s ease;
}

.feature-card {
  border: 1px solid rgba(255, 255, 255, 0.08) !important;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 97, 226, 0.5) !important;
}

.about-list {
  padding-left: 1.1rem;
  margin-bottom: 0;
}

.about-list li {
  margin-bottom: 0.45rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-color: transparent;
  box-shadow: var(--shadow);
}

.btn-primary:hover,
.btn-primary:focus {
  background: linear-gradient(135deg, #42d3ff, #00e4ff);
  transform: translateY(-2px);
  box-shadow: 0 22px 52px rgba(47, 180, 255, 0.28);
}

.btn-outline-light {
  color: var(--text);
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
}

.btn-outline-light:hover,
.btn-outline-light:focus {
  background: rgba(255,255,255,0.12);
}

.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.06);
}

.text-secondary {
  color: var(--muted) !important;
}

/* Professional, intuitive info boxes */
.info-box {
  background: linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.02));
  border: 1px solid var(--surface-strong);
  padding: 1.4rem;
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  min-height: 220px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.info-box:hover {
  transform: translateY(-6px);
  border-color: rgba(47,180,255,0.32);
  box-shadow: 0 22px 50px rgba(13, 78, 152, 0.12);
}

.info-box .icon-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  background: rgba(0,0,0,0.12);
  color: var(--accent);
  font-size: 1.15rem;
}

.info-box .icon-circle svg {
  width: 22px;
  height: 22px;
}

.info-box h3 {
  margin: 0;
  font-weight: 600;
}

.info-box p {
  margin: 0;
  color: var(--muted);
}

.about-list {
  padding-left: 1.1rem;
  margin-bottom: 0;
}

.about-list li {
  margin-bottom: 0.45rem;
}

.cta-box {
  padding: 1.2rem;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(47,180,255,0.12), rgba(0,41,88,0.16));
  border: 1px solid rgba(47,180,255,0.18);
  box-shadow: 0 18px 40px rgba(0, 80, 160, 0.08);
}

.min-vh-75 {
  min-height: 75vh;
}

/* Back to top */
.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(0,97,226,0.18);
  border: none;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 1200;
}

.back-to-top.show {
  opacity: 1;
  transform: translateY(0);
}

/* Gallery */
.gallery-intro {
  max-width: 760px;
}

.partner-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.04));
  border: 1px solid var(--surface-strong);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.partner-image {
  height: 220px;
  background-size: cover;
  background-position: center;
}

.partner-image--placeholder {
  background: linear-gradient(135deg, rgba(47,180,255,0.35), rgba(0,209,255,0.15));
  position: relative;
}

.partner-image--placeholder::before {
  content: '';
  position: absolute;
  inset: 20px;
  border: 2px dashed rgba(255,255,255,0.35);
  border-radius: 16px;
}

.partner-content {
  padding: 1.25rem;
}

.case-card {
  padding: 1.5rem;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0.04));
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 24px 70px rgba(0, 90, 190, 0.12);
}

.case-visual {
  min-height: 320px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(2,44,88,0.96), rgba(0, 100, 187,0.9));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.case-logo {
  width: 100%;
  max-width: 360px;
  display: block;
  margin-top: auto;
  border-radius: 20px;
  box-shadow: 0 22px 42px rgba(0,0,0,0.22);
}

.case-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(255,255,255,0.22), transparent 28%);
  pointer-events: none;
}

.case-tag {
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-brand {
  position: relative;
  z-index: 1;
  font-size: clamp(1.55rem, 2.5vw, 2.3rem);
  font-weight: 700;
  color: #fff;
  text-shadow: 0 20px 40px rgba(0, 0, 0, 0.22);
}

.case-content {
  padding: 0.25rem;
}

.case-list {
  list-style: none;
  padding-left: 0;
  margin: 0 0 1.5rem 0;
}

.case-list li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.9rem;
}

.case-list li::before {
  content: '»';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* Headings */
h1, .display-4, .display-5 {
  letter-spacing: -0.02em;
}

h1 {
  font-weight: 700;
  text-shadow: 0 18px 40px rgba(47,180,255,0.14);
}

.hero-section .lead {
  color: rgba(240,248,255,0.85);
}

h2 {
  font-weight: 600;
  position: relative;
}

h2::after {
  content: '';
  display: block;
  width: 64px;
  height: 3px;
  margin-top: 0.8rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-radius: 999px;
}

.footer {
  text-align: center;
  padding: 2.5rem 1rem 3.5rem;
  color: var(--muted);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

@media (max-width: 992px) {
  .hero-section {
    min-height: auto;
    padding-top: 3.5rem;
    padding-bottom: 2rem;
  }

  .hero-section .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .navbar-collapse {
    background: rgba(18, 31, 47, 0.96);
    border-radius: 16px;
    padding: 1rem;
  }

  .navbar-nav {
    gap: 0.75rem;
  }

  .info-box {
    padding: 1rem;
  }

  .info-box .icon-circle {
    width: 40px;
    height: 40px;
  }

  .info-box .icon-circle svg {
    width: 18px;
    height: 18px;
  }

  .btn {
    width: 100%;
  }

  .btn + .btn {
    margin-top: 0.75rem;
  }

  .cta-box {
    padding: 1.25rem;
  }
}

@media (max-width: 576px) {
  .navbar {
    padding: 1rem 0;
  }

  .lead {
    font-size: 1rem;
  }

  .display-4 {
    font-size: 2.4rem;
  }

  .info-box {
    gap: 0.8rem;
  }

  .footer {
    padding: 2rem 1rem 2.5rem;
  }
}