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

html{
  scroll-behavior:smooth;
}

body{
  font-family:'Poppins',sans-serif;
  background:#0f172a;
  color:white;
  line-height:1.7;
}

img{
  width:100%;
  display:block;
  object-fit:cover;
}

.navbar{
  position:fixed;
  width:100%;
  top:0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:20px 8%;
  backdrop-filter:blur(10px);
  background:rgba(15,23,42,0.8);
  z-index:1000;
}

.logo{
  font-size:1.5rem;
  font-weight:700;
}

nav a{
  color:white;
  text-decoration:none;
  margin-left:20px;
}

.hero{
  min-height:100vh;
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:center;
  padding:120px 8%;
  gap:50px;
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-frame {
  width: 100%;
  max-width: 340px; /* Ukuran pasfoto formal proporsional */
  aspect-ratio: 3 / 4; 
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border: 4px solid rgba(56, 189, 248, 0.2);
}

.profile-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.tag{
  color:#38bdf8;
  margin-bottom:10px;
}

.hero h1{
  font-size:4rem;
  line-height:1.1;
  margin-bottom:20px;
}

.desc{
  color:#cbd5e1;
  max-width:600px;
}

.hero-buttons{
  margin-top:30px;
  display:flex;
  gap:20px;
}

.btn{
  padding:14px 24px;
  border-radius:12px;
  text-decoration:none;
  transition:0.3s;
}

.primary{
  background:#38bdf8;
  color:#0f172a;
}

.secondary{
  border:1px solid #38bdf8;
  color:white;
}

.btn:hover{
  transform:translateY(-3px);
}

.section{
  padding:100px 8%;
}

.section h2{
  font-size:2.5rem;
  margin-bottom:40px;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr) !important; /* Memaksa selalu 3 kolom di desktop */
  gap: 40px !important; /* Memperbesar jarak antar project agar tidak dempet */
}

.stats,
.skill-grid,
.doc-grid,
.achievement-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:25px;
  margin-top:40px;
}

.card,
.skill-card,
.project-card,
.doc-card,
.achievement-card,
.timeline-card{
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.08);
  padding:25px;
  border-radius:20px;
  backdrop-filter:blur(10px);
  overflow:hidden; /* Mengamankan sudut border-radius gambar */
}

/* Memastikan semua gambar project seragam dan pas */
.project-card {
  display: flex;
  flex-direction: column;
  justify-content:开;
}

.project-card img {
  height: 250px;
  width: 100%;
  object-fit: contain; /* Berubah ke 'contain' agar spanduk/tulisan di foto kelihatan penuh & di tengah */
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  padding: 5px;
}

.project-content{
  margin-top:20px;
}

/* Memastikan semua gambar dokumentasi seragam dan pas */
.doc-card img{
  height:200px;
  width:100%;
  object-fit:cover;
  border-radius:12px;
  margin-top:15px;
}

/* Placeholder khusus jika ada diagram yang belum memiliki gambar */
.no-img-placeholder {
  height:200px;
  border-radius:12px;
  border:2px dashed rgba(255,255,255,0.2);
  display:flex;
  align-items:center;
  justify-content:center;
  color:#94a3b8;
  margin-top:15px;
  background: rgba(255,255,255,0.02);
}

.contact-links{
  margin-top:20px;
  display:flex;
  gap:20px;
}

.contact-links a{
  color:#38bdf8;
  text-decoration:none;
}

footer{
  padding:30px;
  text-align:center;
  color:#94a3b8;
}

@media(max-width:900px){
  .hero{
    grid-template-columns:1fr;
  }

  .hero h1{
    font-size:2.8rem;
  }

  .hero-image img{
    height:400px;
  }

  nav{
    display:none;
  }
}

.cert-btn{
  display:inline-block;
  margin-top:15px;
  padding:10px 18px;
  background:#38bdf8;
  color:#0f172a;
  border-radius:10px;
  text-decoration:none;
  font-weight:600;
  transition:0.3s;
}

.cert-btn:hover{
  transform:translateY(-3px);
}

.doc-viewer-container {
  max-width: 800px; /* Membatasi lebar agar tampilan sirkuit tetap proporsional */
  margin: 40px auto 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.doc-tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.tab-btn {
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #cbd5e1;
  border-radius: 12px;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

/* Style saat tombol aktif / diklik */
.tab-btn.active {
  background: #38bdf8;
  color: #0f172a;
  border-color: #38bdf8;
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.2);
}

.tab-btn:hover:not(.active) {
  background: rgba(255, 255, 255, 0.1);
  color: white;
}

.doc-display-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px;
  border-radius: 24px;
  backdrop-filter: blur(10px);
  display: flex;
  justify-content: center;
  align-items: center;
}

.doc-display-card img {
  height: 450px; /* Tinggi disesuaikan agar detail sirkuit terbaca jelas */
  width: 100%;
  object-fit: contain; /* Menggunakan 'contain' agar gambar sirkuit tidak terpotong tepi-tepinya */
  border-radius: 14px;
  transition: opacity 0.2s ease-in-out;
}

.pkl-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pkl-header {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.pkl-logo {
  width: 65px;
  height: 65px;
  object-fit: contain;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  padding: 5px;
}

.pkl-title h3 {
  font-size: 1.4rem;
  color: white;
}

.pkl-title span {
  color: #38bdf8;
  font-weight: 500;
}

.pkl-desc {
  color: #cbd5e1;
}

.pkl-documentation h4 {
  font-size: 1.1rem;
  margin-bottom: 15px;
  color: #94a3b8;
}

.pkl-doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.pkl-doc-grid img {
  height: 150px;
  border-radius: 12px;
  object-fit: cover;
  transition: transform 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.pkl-doc-grid img:hover {
  transform: scale(1.03);
}

/* --- Style Slider Dokumentasi Eng (Panah Kiri-Kanan) --- */
.slider-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  gap: 15px;
  max-width: 850px;
  margin: 0 auto;
}

.doc-display-card {
  flex: 1;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 15px;
  border-radius: 24px;
}

.doc-display-card img {
  height: 480px;
  width: 100%;
  object-fit: contain; /* Jalur skematik aman tidak terpotong */
  border-radius: 14px;
  transition: opacity 0.25s ease;
}

.arrow-btn {
  background: #38bdf8;
  color: #0f172a;
  border: none;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
  z-index: 10;
}

.arrow-btn:hover {
  background: white;
  transform: scale(1.1);
}

.slider-counter {
  text-align: center;
  margin-top: 10px;
  font-size: 0.9rem;
  color: #94a3b8;
}

@media(max-width:900px){
  .hero{
    grid-template-columns:1fr;
    padding-top: 140px;
    gap: 40px;
  }

  .hero h1{
    font-size:2.8rem;
  }

  .hero-image {
    order: -1; /* Foto profil otomatis pindah ke atas teks saat di HP */
  }

  /* Menimpa tinggi statis lama agar frame tidak gepeng */
  .hero-image img {
    height: 100% !important; 
  }

  .profile-frame {
    max-width: 260px; /* Ukuran frame mengecil proporsional di layar HP */
  }

  nav{
    display:none;
  }
}

.competency-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.competency-card {
  background: #111827; /* Warna gelap solid */
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-top: 4px solid #38bdf8; /* Garis aksen biru di atas kartu */
  border-radius: 16px;
  padding: 30px 25px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.competency-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(56, 189, 248, 0.15);
}

.competency-card h3 {
  font-size: 1.25rem;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 25px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 15px;
}

.competency-card h3 i {
  color: #38bdf8;
  font-size: 1.5rem;
}

.competency-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.competency-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: #cbd5e1; /* Warna teks agak abu-abu agar nyaman dibaca */
  line-height: 1.5;
}

.competency-list li i {
  color: #38bdf8; /* Warna centang biru */
  font-size: 1.1rem;
  margin-top: 2px; /* Menyesuaikan agar centang sejajar dengan teks */

}

/* Responsive adjustments untuk HP */
@media (max-width: 768px) {
  /* Memaksa project grid menjadi 1 kolom vertikal */
  .project-grid {
    grid-template-columns: 1fr !important;
    gap: 20px;
    padding: 0 15px;
  }

  /* Mengatur lebar kartu agar tidak terlalu lebar di HP */
  .project-card {
    width: 100%;
    margin: 0 auto;
    padding: 20px;
  }

  /* Mengecilkan font di HP supaya tidak kepotong */
  .project-card h3 {
    font-size: 1.1rem;
  }
  
  .project-card p {
    font-size: 0.9rem;
    line-height: 1.6;
  }
}