/* =========================================================
   GLOBAL STYLE
========================================================= */
body {
  font-family: 'Poppins', sans-serif;
  color: #1f1f1f;
  background: linear-gradient(135deg, #dff6ff, #a8e8ff, #6cc6ff, #3da9fc);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* Smooth animation */
* {
  transition: all 0.3s ease;
}

/* =========================================================
   BACKGROUND SECTIONS
========================================================= */
.banner,
.about,
.portofolio,
.kontak {
  background-image: url("images/background.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
}

.banner {
  padding-top: 18%;
  padding-bottom: 18%;
}

.about,
.portofolio,
.kontak {
  padding-top: 10%;
  padding-bottom: 10%;
}

/* =========================================================
   NAVBAR STYLE (Elegant + Blur)
========================================================= */
.navbar {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.3);
}

.nav-link {
  font-size: 16px;
  margin-left: 20px;
  position: relative;
  padding: 8px 12px;
  color: #003049 !important;
  font-weight: 500;
}

/* garis hover */
.navbar .nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -3px;
  width: 0%;
  height: 3px;
  background-color: #0d6efd;
  border-radius: 50px;
  transform: translateX(-50%);
  transition: width 0.25s ease;
}

.navbar .nav-link:hover::after,
.navbar .nav-link.active::after {
  width: 80%;
}

/* =========================================================
   TYPOGRAPHY
========================================================= */
.main-title {
  font-size: 50px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #012a4a;
}

.hero-desc {
  font-size: 18px;
  color: #1b263b;
  line-height: 1.8;
}

.section-title {
  font-size: 40px;
  font-weight: 700;
  color: #013a63;
  text-align: center;
  margin-bottom: 40px;
}

/* =========================================================
   CARD STYLE (Professional smooth effect)
========================================================= */
.card {
  border-radius: 14px;
  border: none;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 4px 18px rgba(0,0,0,0.08);
  transition: 0.35s ease;
}

.card-img-top {
  height: 220px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover {
  transform: translateY(-12px);
  box-shadow: 0 18px 35px rgba(0,0,0,0.15);
}

.card:hover .card-img-top {
  transform: scale(1.1);
}

.card .btn {
  font-weight: 500;
  border-radius: 8px;
  padding: 10px 20px;
}

/* =========================================================
   TIMELINE STYLE (Interaktif modern)
========================================================= */
.timeline {
  border-left: 4px solid #0077b6;
  padding-left: 25px;
  margin-left: 20px;
}

.timeline-item {
  margin-bottom: 25px;
  padding: 15px 20px;
  background: #e7f5ff;
  border-radius: 12px;
  position: relative;
  left: 0;
  transition: 0.3s;
}

.timeline-item:hover {
  left: 10px;
  background: #d0ebff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.timeline-item h5 {
  color: #013a63;
  font-weight: 600;
}

.timeline-item span {
  font-size: 14px;
  color: #495057;
}



/* =========================================================
   ACCORDION (Fresh Blue Style)
========================================================= */
.accordion-button {
  background: #dff3ff;
  color: #013a63;
  font-weight: 600;
}

.accordion-button:not(.collapsed) {
  background: #caf0f8;
  color: #012a4a;
}

.accordion-body {
  background: #f1faff;
  color: #1b263b;
  border-left: 3px solid #0096c7;
}

/* =========================================================
   FOOTER (Ocean style)
========================================================= */
.ocean-footer {
  background: linear-gradient(135deg, #013a63, #0077b6, #00b4d8, #90e0ef);
  color: white;
  padding: 40px 0;
}

.ocean-footer a {
  color: #e0faff;
  text-decoration: none;
}

.ocean-footer a:hover {
  color: #ffffff;
}