:root{
    --primary: #38bdf8;
    --accent: #818cf8;
    --bg: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.6);
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --gradient: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
}

*{
    margin: 0; padding: 0; box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    scroll-behavior: smooth;
}

body{
    background-color: var(--bg);
    color: var(--text);
    overflow-x:hidden;
    line-height: 1.7;
}

/* Canvas Background */
#particles{
    position: fixed;
    inset: 0;
    z-index: -1;
    opacity: 0.3;
}

/* Navigation */
nav {
    position: absolute; /* DIUBAH dari fixed ke absolute agar navbar tetap di atas dan tidak ikut di-scroll */
    top: 20px;
    left: 50%;
    transform: translateX(-50%);

    display: flex;
    align-items: center;

    padding: 15px 35px;
    width: fit-content;

    background: rgba(15,23,42,.6);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 50px;
    z-index: 1000;
}

/* menu */
.nav-links {
    display: flex;
    gap: 15px; /* Dikurangi dari 25px menjadi 15px agar muat */
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem; /* Dikurangi dari 0.95rem menjadi 0.85rem agar lebih pas di layar */
    transition: color 0.3s ease;
    white-space: nowrap; /* Mencegah teks menu patah menjadi 2 baris */
}

/* Efek ketika kursor diarahkan ke menu */
.nav-links a:hover {
    color: var(--primary);
}

/* logo kiri */
.logo{
    font-weight: 700;
    color: #38bdf8;
}

/* kasih jarak fleksibel */
.spacer{
    width: 40px;
}

/* menu */
.nav-links{
    display: flex;
    gap: 25px;
}

/* Hero Section */
.hero{
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
    position: relative;
}

.hero-content img.profile{
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 4px solid var(--primary);
    box-shadow: 0 0 40px rgba(56, 189, 248, 0.4);
    margin: 0 auto 20px;
    object-fit: cover;
    animation: float 4s ease-in-out infinite;
}

@keyframes float{
    0%, 100%{transform: translateY(0);}
    50%{transform: translateY(-15px);}
}

.hero h1{
    font-size: 3.5rem;
    margin: 15px 0;
    line-height: 1.2;
}

.hero h1 span{
    color: var(--primary);
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.typing-text{
    color: var(--text-muted);
    font-size: 1.2rem;
    min-height: 30px;
    margin-bottom: 30px;
}

.btns{
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn{
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    transition: 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary{
    background: var(--gradient);
    color: #000;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
}

.btn-primary:hover{
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.5);
}

.btn-outline{
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover{
    background: var(--primary);
    color: #000;
}

/* Sections Generic */
section{
    max-width: 1100px;
    margin: auto;
    padding: 100px 20px;
}

.section-title{
    font-size: 2.5rem;
    margin-bottom: 50px;
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after{
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient);
    margin: 10px auto 0;
    border-radius: 2px;
}

/* About & Stats */
.about-container{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.stats-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.stat-card{
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.05);
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    transition: 0.3s;
}

.stat-card:hover{
    transform: translateY(-5px);
    border-color: var(--primary);
}

.stat-card h3{
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-card p{
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Skills Grid */
.skills-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.skill-card{
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px;
    padding: 25px;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    transition: all .4s ease;
    position:relative;
    overflow:hidden;
    cursor:pointer;
}

.skill-card::before{
    content:'';
    position:absolute;
    top:-100%;
    left:-100%;
    width:250%;
    height:250%;
    background:linear-gradient(
        45deg,
        transparent,
        rgba(255,255,255,.12),
        transparent
    );
    transition:.7s;
}

.skill-card:hover::before{
    top:100%;
    left:100%;
}


.skill-card i{
    font-size:3rem;
    margin-bottom:15px;
    transition:.4s;
}

.skill-card:hover i{
    transform:rotate(15deg) scale(1.25);
}

.skill-card p{
    transition:.3s;
}

.skill-card:hover p{
    color:var(--primary);
}

.skill-card:hover{
    transform: translateY(-12px) scale(1.08);
    box-shadow: 0 15px 35px rgba(56,189,248,.35);
    border-color: var(--primary);
}

.skill-card i{
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.skill-card p{
    font-weight: 600;
    font-size: 0.9rem;
}


/* ======================
   LOADING SCREEN
====================== */

#loader{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    background:#0f172a;
    display:flex;
    justify-content:center;
    align-items:center;
    z-index:99999;
    transition:1s;
}

.loader-content{
    text-align:center;
}

.loader-content h1{
    font-size:3rem;
    margin-bottom:20px;
    background:linear-gradient(135deg,#38bdf8,#818cf8);
    background-clip:text;
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
}

.loading-bar{
    width:250px;
    height:8px;
    background:rgba(255,255,255,.1);
    border-radius:20px;
    overflow:hidden;
}

.loading-progress{
    height:100%;
    width:0;
    background:linear-gradient(135deg,#38bdf8,#818cf8);
    animation:loading 2s ease forwards;
}

@keyframes loading{
    from{
        width:0;
    }
    to{
        width:100%;
    }
}

/* Projects */
.projects-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}


.hero-subtitle{
    font-size:1.3rem;
    color:var(--primary);
    font-weight:600;
    margin-bottom:15px;
}

.hero-desc{
    max-width:700px;
    margin:0 auto 30px;
    color:var(--text-muted);
    line-height:1.8;
}

.hero-social{
    display:flex;
    justify-content:center;
    gap:20px;
    margin-top:30px;
}

.hero-social a{
    width:50px;
    height:50px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:50%;
    background:rgba(255,255,255,.05);
    color:white;
    font-size:1.3rem;
    transition:.3s;
}

.hero-social a:hover{
    transform:translateY(-5px);
    color:#38bdf8;
    box-shadow:0 0 20px rgba(56,189,248,.5);
}

/* =========================
   PROJECT CARD
========================= */

.project-card{
    background:var(--bg-card);
    border-radius:16px;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.08);
    transition:.4s ease;
    cursor:pointer;
    position:relative;
}

.project-card:hover{
    transform:translateY(-15px) scale(1.03);
    box-shadow:0 20px 50px rgba(56,189,248,.3);
    border-color:var(--primary);
}

/* Overlay Glow */
.project-card::after{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(
        to top,
        rgba(56,189,248,.15),
        transparent
    );
    opacity:0;
    transition:.4s;
    pointer-events:none;
}

.project-card:hover::after{
    opacity:1;
}

/* Image */
.project-card img{
    width:100%;
    height:200px;
    object-fit:cover;
    transition:.6s;
}

.project-card:hover img{
    transform:scale(1.12);
}

/* Content */
.project-info{
    padding:25px;
    position:relative;
    z-index:2;
}

.project-info h3{
    font-size:1.3rem;
    margin-bottom:10px;
    color:var(--text);
    transition:.3s;
}

.project-card:hover h3{
    color:var(--primary);
}

.project-info p{
    color:var(--text-muted);
    font-size:.9rem;
    margin-bottom:15px;
}

/* Tags */
.tags{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
}

.tag{
    background: rgba(56, 189, 248, 0.1);
    color: var(--primary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tag{
    background:rgba(56,189,248,.12);
    color:var(--primary);
    padding:6px 12px;
    border-radius:30px;
    font-size:.75rem;
    font-weight:600;
    transition:.3s;
}

.project-card:hover .tag{
    background:var(--primary);
    color:#000;
}

/* =========================
   CERTIFICATES
========================= */

#certificates .project-card{
    border-left:4px solid #38bdf8;
}

#certificates .project-card:hover{
    border-left:4px solid #818cf8;
    box-shadow:0 20px 50px rgba(129,140,248,.35);
}

.tag{
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 20px;
    background: rgba(56, 189, 248, 0.1);
    color: var(--primary);
    font-weight: 600;
}

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

.contact-card{
    background:var(--bg-card);
    border:1px solid rgba(255,255,255,.08);
    border-radius:18px;
    padding:30px;
    text-align:center;
    transition:.4s;
}

.contact-card:hover{
    transform:translateY(-10px);
    box-shadow:0 15px 40px rgba(56,189,248,.25);
    border-color:var(--primary);
}

.contact-card i{
    font-size:2.5rem;
    color:var(--primary);
    margin-bottom:15px;
}

.contact-card h3{
    margin-bottom:10px;
}

.contact-card p,
.contact-card a{
    color:var(--text-muted);
    text-decoration:none;
}

.cv-buttons{
    display:flex;
    justify-content:center;
    gap:10px;
    flex-wrap:wrap;
    margin-top:15px;
}

/* Custom View CV Button styling */
.view-cv-btn {
    position: relative;
    z-index: 10;              /* Supaya tombol berada di atas canvas partikel */
    pointer-events: auto;     /* Memastikan tombol merespons klik */
    transition: all 0.3s ease !important;
}

/* Efek Hover pas Tombol CV Ditunjuk */
.view-cv-btn:hover {
    background: var(--primary) !important; /* Menggunakan warna cyan/biru utama web lu */
    color: #0f172a !important;            /* Mengubah warna teks menjadi gelap agar kontras */
    border-color: var(--primary) !important;
    box-shadow: 0 0 15px rgba(14, 165, 233, 0.6); /* Efek glow neon */
    transform: translateY(-3px);          /* Efek mengangkat sedikit */
}


body{
    cursor:none;
}

.cursor-dot{
    width:8px;
    height:8px;
    background:#38bdf8;
    border-radius:50%;
    position:fixed;
    pointer-events:none;
    z-index:99999;
}

.cursor-outline{
    width:40px;
    height:40px;
    border:2px solid rgba(56,189,248,.7);
    border-radius:50%;
    position:fixed;
    pointer-events:none;
    z-index:99998;
    transition:all .15s ease-out;
}

/* Styling Tombol View PDF */
.view-pdf-btn {
    position: relative;       /* TAMBAHKAN INI */
    z-index: 10;              /* TAMBAHKAN INI agar tombol berada di lapisan paling atas */
    pointer-events: auto;     /* TAMBAHKAN INI untuk memastikan tombol bisa diklik */
    
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 15px;
    padding: 8px 16px;
    background: rgba(14, 165, 233, 0.1);
    color: var(--primary);
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

/* Efek Hover tetap sama */
.view-pdf-btn:hover {
    background: var(--primary);
    color: #0f172a;
    box-shadow: 0 0 12px rgba(14, 165, 233, 0.5);
    transform: translateY(-2px);
}
/* Footer */
footer{
    text-align: center;
    padding: 30px;
    background: rgba(0,0,0,0.2);
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}

/* TECH STACK */

.logo-slider{
    width:100%;
    overflow:hidden;
    position:relative;
    padding:25px 0;
}

/* fade kiri kanan biar premium */
/* Fade kiri kanan */
.logo-slider::before,
.logo-slider::after {
    content: "";
    position: absolute;
    top: 0;
    width: 120px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.logo-slider::before {
    left: 0;
    background: linear-gradient(to right, var(--bg), transparent);
}

.logo-slider::after {
    right: 0;
    background: linear-gradient(to left, var(--bg), transparent); /* Menggunakan var(--bg) bukan #000 agar menyatu dengan background utama */
}

.logo-track {
    display: flex;
    width: max-content;
    gap: 70px; /* Jarak antar elemen, sesuaikan jika ingin lebih renggang (misal: 80px - 100px) */
    animation: slide 25s linear infinite;
    will-change: transform;
}

.logo-slider:hover .logo-track{
    animation-play-state:paused;
}

.logo-item{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:1.2rem;
    font-weight:600;
    white-space:nowrap;
    transition:0.3s;
}

.logo-item:hover{
    transform:scale(1.08);
    color:#fff;
}

.logo-item i{
    font-size:2rem;
    transition:0.3s;
}

.logo-item:hover i{
    transform:rotate(5deg) scale(1.2);
}

/* ANIMATION lebih halus */
@keyframes slide {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50%); /* Harus -50% agar looping pas dengan teknik duplikasi di atas */
    }
}

/* ICON COLORS (tambahan yang kurang) */
.fa-linux{color:#FCC624;}
.fa-network-wired{color:#00BFFF;}
.fa-wifi{color:#FF6B00;}
.fa-database{color:#4479A1;}
.fa-html5{color:#E34F26;}
.fa-css3-alt{color:#1572B6;}
.fa-js{color:#F7DF1E;}
.fa-microchip{color:#00C896;}
.fa-php{color:#777BB4;}
.fa-python{color:#3776AB;}
.fa-node-js{color:#3C873A;}
.fa-git-alt{color:#F05032;}
.fa-github{color:#fff;}
.fa-docker{color:#2496ED;}
.fa-cloud{color:#00C7FF;}
.fa-ubuntu{color:#E95420;}