/* --- Import Font dari Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@400;600;700&family=Lato:wght@400;700&display=swap');

/* --- Variabel Warna --- */
:root {
  /* Warna utama: Biru Tua, digunakan untuk teks atau elemen penting */
  --primary-color: #1a3c6d; /* Biru gelap/navy */
  /* Warna aksen: Biru Muda, untuk highlight, tombol, atau ikon */
  --accent-color: #4ea8de; /* Biru muda cerah */
  /* Warna teks utama */
  --text-dark: #343a40; /* Abu-abu gelap, hampir hitam */
  /* Warna teks terang, untuk latar belakang gelap */
  --text-light: #ffffff;
  /* Warna latar belakang terang */
  --bg-light: #f8f9fa; /* Abu-abu sangat terang */
  /* Warna teks sekunder atau detail */
  --secondary-text: #6c757d; /* Abu-abu sedang */
  /* Warna abu-abu terang untuk border atau background elemen */
  --light-gray: #dee2ee;
  /* Warna shadow untuk hover */
  --hover-shadow: rgba(0, 0, 0, 0.1);
}

/* --- General & Typography --- */
body {
  
  background-color: var(--bg-light);
  font-family: 'Lato', sans-serif;
  color: var(--text-dark);
}

.section-title h1,
.carousel-caption h1,
.carousel-caption h4 {
  font-family: 'Kanit', sans-serif; /* Menggunakan Kanit untuk judul */
  font-weight: 700;
  color: var(--text-dark);
}

.section-title h4 {
  color: var(--primary-color);
  font-weight: 600;
}

.carousel-caption p,
.timeline-content {
  font-family: 'Lato', sans-serif; /* Menggunakan Lato untuk paragraf */
}

/* Styling untuk gambar latar belakang */
.header-static-item {
  position: relative;
  height: 110vh; /* Sesuaikan tinggi sesuai keinginan, misalnya 60% dari tinggi layar */
}

.header-static-item img {
  width: 100%;
  height: 100%; /* Mengatur gambar agar mengisi penuh elemen induknya */
  object-fit: cover;
  filter: brightness(60%);
}

/* Styling untuk konten teks dan tombol */
.carousel-caption {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

/* logo */
/* Styling untuk logo di carousel (modifikasi dengan !important dan brightness) */
.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    z-index: 10;
}

.logo-carousel {
    height: 70px !important;
    width: 70px !important;
    object-fit: contain !important;
    border-radius: 50% !important;
    background-color: rgba(255, 255, 255, 0.9);
    padding: 5px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.4);
    filter: brightness(100%) !important; /* Mencerahkan logo kembali ke kondisi normal */
}

/* Specific wrapper to safely override Bootstrap utilities */
.hero-cta {
  gap: 0.75rem;               /* ruang antar tombol */
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;          /* tetap 1 baris (tidak menurun) */
}

/* Default desktop-friendly (keamanan/consistency) */
.hero-cta .btn {
  font-size: 1rem;
  padding: 0.75rem 1.4rem;    /* override py-3 px-4 agar lebih konsisten */
  transition: transform .15s ease, box-shadow .15s ease;
  white-space: nowrap;
}

/* Icon spacing / sizing */
.hero-cta .btn i {
  margin-right: 0.5rem;
  font-size: 0.98em;
  vertical-align: middle;
}

/* Tablet: sedikit mengecil */
@media (max-width: 768px) {
  .hero-cta {
    gap: 0.5rem;
    /* jika wrapper berada di dalam flex parent yang memaksa overflow,
       ijinkan shrink pada breakpoint ini */
    flex-shrink: 1 !important;
  }

  .hero-cta .btn {
    font-size: 0.92rem;
    padding: 0.55rem 1.05rem;   /* lebih ramping */
  }

  .hero-cta .btn i {
    margin-right: 0.4rem;
    font-size: 0.95em;
  }
}

/* Mobile: lebih kecil tapi tetap clickable */
@media (max-width: 576px) {
  .hero-cta {
    gap: 0.4rem;
  }

  .hero-cta .btn {
    font-size: 0.82rem;
    padding: 0.45rem 0.85rem;   /* compact tapi mudah ditekan */
    border-radius: 50rem;       /* tetap pill */
  }

  .hero-cta .btn i {
    margin-right: 0.35rem;
    font-size: 0.88em;
  }
}

/* Accessibility / focus cleanup (opsional) */
.hero-cta .btn:focus {
  box-shadow: 0 0 0 0.15rem rgba(13,110,253,0.15);
}


/* Responsif untuk layar kecil */
@media (max-width: 768px) {
    .logo-container {
        gap: 1rem;
        flex-wrap: wrap;
    }

    .logo-carousel {
        height: 50px !important;
        width: 50px !important;
    }
}

/* --- Main Content Grid --- */
.parent {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: repeat(5, 1fr);
  gap: 1.5rem;
  padding: 2rem;
}

.div1 {
  grid-column: span 3 / span 3;
  grid-row: span 3 / span 3;
  padding: 2rem;
  background-color: var(--text-light);
  border-radius: 10px;
  box-shadow: 0 4px 15px var(--hover-shadow);
}

.div2 {
  grid-column: span 2 / span 2;
  grid-row: span 3 / span 3;
  grid-column-start: 4;
  padding: 2rem;
  background-color: var(--accent-color);
  border-radius: 10px;
  box-shadow: 0 4px 15px var(--hover-shadow);
  color: var(--text-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.div3 {
  grid-column: span 5 / span 5;
  grid-row: span 2 / span 2;
  grid-row-start: 4;
  padding: 2rem;
  background-color: var(--text-light);
  border-radius: 10px;
  box-shadow: 0 4px 15px var(--hover-shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

/* --- Buttons & Text Utilities --- */
.text-primary {
  color: var(--primary-color) !important;
}

.text-accent,
.btn-primary {
  background-color: var(--accent-color) !important;
  border-color: var(--accent-color) !important;
  color: var(--text-light) !important;
}

.btn-primary:hover {
  background-color: var(--primary-color) !important;
  border-color: var(--primary-color) !important;
}

.btn-outline-primary {
  color: var(--primary-color) !important;
  border-color: var(--primary-color) !important;
}

.btn-outline-primary:hover {
  background-color: var(--primary-color) !important;
  color: var(--text-light) !important;
}

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

/* --- Info & Focus Cards --- */
.info-item,
.focus-card {
  transition: all 0.3s ease;
  background-color: var(--text-light);
  border: 1px solid var(--light-gray);
  border-radius: 8px;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 1rem;
}

.info-item:hover {
  background-color: var(--bg-light);
  transform: translateY(-5px);
  box-shadow: 0 4px 12px var(--hover-shadow);
}

.info-item .icon {
  font-size: 2.5rem;
  line-height: 1;
  color: var(--accent-color);
}

.focus-card {
  border-radius: 10px;
}

.focus-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px var(--hover-shadow);
}

.focus-card .fa-3x {
  color: var(--primary-color);
}

/* --- Cost Card Styles --- */
.seminar-cost-section {
  background-color: var(--bg-light);
  padding: 4rem 0;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.cost-card {
  background: var(--text-light);
  border: none;
  border-radius: 15px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  padding: 2.5rem 1.5rem;
  position: relative;
  overflow: hidden;
}

.cost-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--secondary-text), var(--accent-color));
  transition: all 0.3s ease;
}

.cost-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--hover-shadow);
}

.cost-card .icon-circle {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 60px;
  height: 60px;
  background-color: var(--light-gray);
  border-radius: 50%;
  margin: 0 auto 1rem;
  transition: background-color 0.3s ease;
}

.cost-card:hover .icon-circle {
  background-color: var(--accent-color);
}

.cost-card:hover .icon-circle .fas {
  color: var(--text-light) !important;
}

.cost-card .fas {
  font-size: 2rem;
  color: var(--secondary-text);
  transition: color 0.3s ease;
}

.cost-card h6 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-dark);
}

.cost-card .price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-color);
}

.payment-info-box {
  background-color: var(--text-light);
  border: 1px solid var(--light-gray);
  border-left: 5px solid var(--accent-color);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  margin-top: 2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.payment-info-box .deadline {
  font-weight: 700;
  color: #dc3545;
}

/* --- Speakers Section --- */
.speaker-card {
  transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
  height: 100%;
  background-color: var(--text-light);
}

.speaker-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px var(--hover-shadow) !important;
}

.speaker-img-container {
  width: 170px;
  height: 170px;
  margin: 0 auto;
  border: 4px solid var(--accent-color);
  border-radius: 50%;
  overflow: hidden;
}

.speaker-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- Timeline Section --- */
.timeline-container {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  position: relative;
  padding: 40px 0;
  margin-top: 50px;
}

.timeline-container::before {
  content: "";
  position: absolute;
  top: 50px;
  left: 0;
  right: 0;
  height: 4px;
  background-color: var(--accent-color);
  z-index: 0;
}

.timeline-item {
  flex: 1;
  text-align: center;
  position: relative;
  padding-top: 60px;
}

.timeline-point {
  width: 20px;
  height: 20px;
  background-color: var(--accent-color);
  border-radius: 50%;
  position: absolute;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  border: 3px solid var(--text-light);
}

.timeline-content {
  margin-top: 20px;
  color: var(--text-dark);
}

.timeline-title {
  font-family: 'Kanit', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--primary-color);
  margin-bottom: 5px;
}

.timeline-date {
  font-weight: 700;
  color: var(--secondary-text);
  font-size: 0.95rem;
}

/* --- Footer & Back to Top --- */
.footer {
  background-color: var(--primary-color);
  color: var(--text-light);
}

.footer a {
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.3s;
}

.footer a:hover {
  color: var(--accent-color);
}

.footer .footer-item a {
  display: block;
  margin-bottom: 10px;
}

.back-to-top {
  position: fixed;
  display: none;
  right: 30px;
  bottom: 30px;
  z-index: 99;
  background-color: var(--accent-color);
  color: var(--text-light);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.back-to-top:hover {
  background-color: var(--primary-color);
}

/* --- Responsive Adjustments --- */
@media (max-width: 992px) {
  .parent {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .div1,
  .div2,
  .div3 {
    grid-column: span 1 / span 1;
    grid-row: auto;
    grid-column-start: auto;
    grid-row-start: auto;
  }
}

@media (max-width: 768px) {
  body, html {
  overflow-x: hidden; /* Mencegah scroll horizontal */
}
  .timeline-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 0;
    margin-top: 30px;
  }

  .timeline-container::before {
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    height: 100%;
  }

  .timeline-item {
    padding: 20px 0 20px 40px;
    text-align: left;
    width: 100%;
  }

  .timeline-point {
    top: 25px;
    left: 0;
    transform: none;
    margin-left: -10px;
  }
}

.qr-img {
    width: 350px;
    height: 267px; /* Atau gunakan width: 350px; dan height: auto; jika rasio aslinya bukan 350x267 */
}

@media (max-width: 768px) {
    .qr-img {
        width: 150px;
        height: auto;
    }
}

/* Preloader */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #ffffff; /* Sesuaikan dengan warna latar belakang halaman Anda */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.6s ease-in-out;
}

#preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

/* Animasi Fade-in untuk seluruh konten */
body > .container-fluid,
body > .container {
    opacity: 0;
    animation: fadeInContent 1.2s ease-out forwards;
    animation-delay: 0.8s; /* Sesuaikan delay setelah preloader hilang */
}

@keyframes fadeInContent {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Countdown komponen */
.count-item {
  min-width: 110px;
  padding: 20px 25px;
  margin: 10px;
  background: linear-gradient(145deg, #ffffff, #f8f9fa);
  border-radius: 18px;
  box-shadow: 0 6px 14px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #e9ecef;
  text-align: center;
}

.count-number {
  font-size: 2.2rem;
  font-weight: 700;
  color: #212529;
  font-family: 'Kanit', sans-serif;
  margin-bottom: 5px;
}

.count-label {
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-weight: 500;
  color: #6c757d;
}

/* 🔹 Responsif: Tablet */
@media (max-width: 992px) {
  .count-item {
    min-width: 90px;
    padding: 16px 20px;
    margin: 8px;
  }
  .count-number {
    font-size: 1.9rem;
  }
  .count-label {
    font-size: 0.85rem;
  }
}

/* 🔹 Responsif: Mobile */
@media (max-width: 576px) {
  .count-item {
    min-width: 70px;
    padding: 12px 14px;
    margin: 6px;
  }
  .count-number {
    font-size: 1.5rem;
  }
  .count-label {
    font-size: 0.75rem;
  }
}