/* Reset dasar */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

html {
  scroll-behavior: smooth; /* agar smooth scroll */
  scroll-padding-top: 70px;
}

/* Navbar dasar transparan */
.navbar {
  transition: background-color 0.3s ease, padding 0.3s ease;
  background-color: transparent;
}

/* Saat discroll: background putih */
.navbar.scrolled {
  background-color: white;
}

/* Semua link */
.navbar .nav-link {
  position: relative;
  color: white; /* warna default saat transparan */
  font-weight: normal;
  transition: color 0.3s ease, font-weight 0.3s ease;
}

/* Hover warna saat transparan */
.navbar .nav-link:hover {
  color: #ffcb05; /* kuning */
}

/* Saat navbar discroll: link jadi gelap */
.navbar.scrolled .nav-link {
  color: #212529; /* dark grey */
}
.navbar.scrolled .nav-link:hover {
  color: #0d6efd; /* biru Bootstrap */
}

/* Underline animasi */
.navbar .nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 2px;
  background-color: currentColor; /* warna mengikuti teks */
  transition: width 0.3s ease;
}

/* Saat link aktif */
.navbar .nav-link.active {
  font-weight: bold;
}

/* Underline aktif */
.navbar .nav-link.active::after {
  width: 100%;
}

/* Hover underline muncul */
.navbar .nav-link:hover::after {
  width: 100%;
}

/* Logo brand */
.navbar-brand img {
  height: 40px;
  width: auto;
  max-height: 40px;
  border-radius: 50%;
}

/* Mobile: navbar selalu solid */
@media (max-width: 991px) {
  .navbar {
    background-color: white !important;
  }
  .navbar .nav-link {
    color: #212529 !important; /* teks gelap */
  }
  .navbar .nav-link:hover {
    color: #0d6efd !important; /* biru Bootstrap */
  }
  .navbar-brand img {
    height: 30px; /* lebih kecil di layar kecil */
  }
}

/* Jumbotron */
.jumbotron {
  padding-top: 20%;
  background-image: url("../img/jumbotron.jpg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}

.jumbotron h1 {
  color: #f8f8f8;
}

.jumbotron p {
  color: #f8f8f8;
}

/* Menghilangkan margin dan padding di bagian bawah jumbotron */
.jumbotron svg {
  margin-bottom: -1px;
  display: block;
}

/* About Section */
.tentang {
  padding: 8rem 7% 1.4rem;
  /* -webkit-mask-image: linear-gradient(rgba(0, 0, 0, 1) 85%, rgba(0, 0, 0, 0));
  mask-image: linear-gradient(rgba(0, 0, 0, 1) 85%, rgba(0, 0, 0, 0)); */
}

.tentang h2 {
  font-size: 2.6rem;
  margin-bottom: 3rem;
}

.btn-primary:hover {
  background-color: #ff8c00;
  border-color: #ff8c00;
}

.circle-decor {
  position: absolute;
  width: 40px;
  height: 40px;
  background-color: #ffc107; /* kuning Bootstrap */
  border-radius: 50%;
  opacity: 0.7;
  z-index: 1;
  animation: float 4s ease-in-out infinite alternate;
}

/* Animasi melayang */
@keyframes float {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-10px);
  }
}

/* Animasi getar sederhana */
@keyframes shake {
  0% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-3px);
  }
  40% {
    transform: translateX(3px);
  }
  60% {
    transform: translateX(-3px);
  }
  80% {
    transform: translateX(3px);
  }
  100% {
    transform: translateX(0);
  }
}

.animate-shake {
  animation: shake 0.6s ease-in-out 1.5s 1 forwards;
}

/* servis */
/* Dekorasi lingkaran */
.decor-circle {
  position: absolute;
  top: 20%;
  left: -60px;
  width: 120px;
  height: 120px;
  background-color: #ffcb05;
  border-radius: 50%;
  opacity: 0.2;
  z-index: 0;
}

/* Dekorasi kotak */
.decor-square {
  position: absolute;
  bottom: 10%;
  right: -40px;
  width: 80px;
  height: 80px;
  background-color: #ffcb05;
  opacity: 0.2;
  transform: rotate(15deg);
  z-index: 0;
}

/* audio */
#play-audio-btn {
  font-size: 1rem;
  opacity: 0.9;
  transition: opacity 0.3s ease;
}

#play-audio-btn:hover {
  opacity: 1;
}

/* project */
.btn-gradient {
  background: linear-gradient(45deg, #0d6efd, #00b4d8);
  color: white;
  border: none;
  border-radius: 50px;
  padding: 10px 20px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-gradient:hover {
  background: linear-gradient(45deg, #00b4d8, #0d6efd);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(13, 110, 253, 0.4);
  color: white;
}

/* sertifikasi */
.swiper-slide {
  display: flex;
  justify-content: center;
}

.sertifikat-swiper .swiper-button-prev,
.sertifikat-swiper .swiper-button-next {
  color: #ffcb05;
}

/* Footer */
footer {
  background: white;
  padding: 2rem 0;
}

footer p {
  margin: 0;
  color: white;
  font-size: 1rem;
}

footer a {
  color: white;
  font-weight: bold;
  text-decoration: none;
  transition: color 0.3s ease;
}

footer a:hover {
  color: #ffcbcb;
  font-style: italic;
}

/* mobile */
@media (max-width: 768px) {
  .content-media {
    flex-wrap: wrap;
  }

  .image-profile {
    margin-bottom: 20px;
  }
}