/* ===============================
   GLOBAL PAGE STYLING
================================ */

body {
  background: linear-gradient(
    -45deg,
    #0f2027,
    #203a43,
    #2c5364,
    #00c6ff,
    #6a11cb,
    #2575fc
  );
  background-size: 600% 600%;
  animation: gradientMove 8s ease infinite;
  min-height: 100vh;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

@keyframes gradientMove {
  0% {
    background-position: 0% 50%;
  }
  25% {
    background-position: 50% 100%;
  }
  50% {
    background-position: 100% 50%;
  }
  75% {
    background-position: 50% 0%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* ===============================
   MAIN LAYOUT
================================ */

.main-container {
  background: rgba(255, 255, 255, 0.92);
  padding: 40px;
  border-radius: 12px;
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.35),
    0 0 40px rgba(0, 140, 255, 0.15);
  margin-top: 40px;
  margin-bottom: 40px;
}

header {
  padding: 10px 10px 20px;
}

main section {
  margin-bottom: 3rem;
}

/* ===============================
   NAVBAR - REDESIGNED
================================ */

.navbar {
  background: rgba(255, 255, 255, 0.88) !important;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 16px;
  padding: 0.85rem 1rem;
  box-shadow:
    0 12px 30px rgba(17, 24, 39, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(14px);
}

.navbar-brand {
  color: #111827 !important;
  font-weight: 800;
  letter-spacing: 0.03em;
  position: relative;
  padding-left: 0.65rem;
}

.navbar-brand::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 4px;
  height: 22px;
  border-radius: 999px;
  background: linear-gradient(180deg, #00c6ff, #6a11cb);
  transform: translateY(-50%);
}

.navbar-toggler {
  border: 1px solid rgba(17, 24, 39, 0.12);
  border-radius: 10px;
  padding: 0.45rem 0.6rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(0, 198, 255, 0.16);
}

.nav-link {
  color: #3a3f45 !important;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 999px;
  padding: 0.5rem 0.82rem !important;
  margin: 0 0.08rem;
  position: relative;
  transition:
    color 0.25s ease,
    background-color 0.25s ease,
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

.nav-link:hover {
  color: #111827 !important;
  background: rgba(0, 198, 255, 0.10);
  transform: translateY(-1px);
}

.nav-link.active {
  color: #ffffff !important;
  font-weight: 700;
  background: linear-gradient(135deg, #3a3f45, #111827);
  border-bottom: none;
  box-shadow: 0 8px 18px rgba(17, 24, 39, 0.18);
}

.nav-link.active:hover {
  color: #ffffff !important;
  background: linear-gradient(135deg, #2b2f34, #111827);
}

/* ===============================
   HERO SECTION
================================ */

.hero-image {
  width: 210px;
  height: 210px;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: 6px solid white;
  object-fit: cover;
  object-position: center top;
  display: block;
  margin: 0 auto;
  box-shadow:
    0 10px 25px rgba(0, 0, 0, 0.35),
    0 0 25px rgba(255, 255, 255, 0.5),
    0 0 45px rgba(0, 140, 255, 0.35);
}

/* ===============================
   HERO / HEADER TEXT
================================ */

header p {
  max-width: 700px;
  margin: 0 auto;
}

.hero-buttons .btn {
  margin-right: 10px;
  margin-bottom: 10px;
}

/* ===============================
   BUTTONS
================================ */

.btn {
  border-radius: 8px;
  font-weight: 500;
}

.btn-primary {
  background-color: #3a3f45;
  border-color: #3a3f45;
}

.btn-primary:hover {
  background-color: #2b2f34;
  border-color: #2b2f34;
}

.btn-outline-primary {
  color: #3a3f45;
  border-color: #3a3f45;
}

.btn-outline-primary:hover {
  background-color: #3a3f45;
  border-color: #3a3f45;
  color: white;
}

.card .btn {
  padding: 6px 14px;
  font-size: 0.9rem;
}

/* ===============================
   FEATURE BANNER
================================ */

.bg-primary {
  background: linear-gradient(
    135deg,
    #3a3f45,
    #2c2f33
  ) !important;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.35);
}

/* ===============================
   CARDS
================================ */

.card {
  border: none;
  border-radius: 14px;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.08);
  transition: 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.2);
}

/* ===============================
   COLLAPSIBLE DETAIL BOXES
================================ */

.detail-box {
  background: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid #3a3f45;
}

/* ===============================
   FOOTER
================================ */

footer {
  margin-top: 60px;
}

/* ===============================
   RESPONSIVE TWEAKS
================================ */

@media (max-width: 767.98px) {
  .main-container {
    padding: 25px;
  }

  .hero-image {
    width: 160px;
    height: 160px;
  }

  .hero-buttons .btn {
    width: 100%;
    margin-right: 0;
  }

  .navbar {
    padding: 0.75rem;
  }

  .navbar-brand {
    font-size: 0.98rem;
  }

  .navbar-collapse {
    margin-top: 0.8rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(17, 24, 39, 0.08);
  }

  .nav-link {
    text-align: center;
    margin: 0.18rem 0;
    padding: 0.68rem 0.85rem !important;
  }

  .nav-link.active {
    border-bottom: none;
  }
}