/* ===== 1. PENGATURAN TEMA & DASAR (MOBILE-FIRST) ===== */
:root {
    --bg-color: #0d1218; --card-bg-dark: rgba(22, 27, 34, 0.7); --card-bg-light: #161b22; --border-color: rgba(66, 88, 102, 0.5); --primary-text-color: #e0e6eb; --secondary-text-color: #8b949e; --accent-color: #4dc0c5; --accent-hover-color: #3182ce; --accent-glow: rgba(77, 192, 197, 0.3); --pill-project: #3081f7; --pill-education: #a371f7; --pill-certificate: #238636; --pill-activity: #db6d28; --pill-advanced: #1f6feb; --pill-expert: #4dc0c5; --pill-intermediate: #8b949e; --pill-beginner: #30363d; --tag-bg: #30363d;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background-color: var(--bg-color); color: var(--primary-text-color); font-family: 'Inter', sans-serif; line-height: 1.7; -webkit-font-smoothing: antialiased; min-height: 100vh; display: flex; flex-direction: column; position: relative; overflow-x: hidden; }

/* ===== CANVAS & CONTAINER ===== */
#network-background, .animated-background { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; }
.animated-background { z-index: 1; pointer-events: none; background: linear-gradient(45deg, rgba(0,0,0,0.2), transparent 50%, rgba(0,0,0,0.2)); }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 16px; position: relative; z-index: 2; flex-grow: 1; }

/* ===== 2. HEADER & NAVIGASI (MOBILE-FIRST) ===== */
.main-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 100; padding: 16px 0; transition: background-color 0.2s ease, border-color 0.2s ease; background-color: transparent; border-bottom: 1px solid transparent; }
.main-header.is-scrolled, .main-header.is-open { background-color: rgba(13, 18, 24, 0.85); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); }
.header-container { display: flex; justify-content: space-between; align-items: center; width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 16px; }
.logo { font-size: 20px; font-weight: 700; color: #fff; text-decoration: none; z-index: 1001; transition: all 0.2s ease; }
.logo:hover { transform: translateY(-2px) scale(1.05); color: var(--accent-color); }
.main-nav { display: none; position: fixed; top: 0; right: 0; bottom: 0; width: 70%; max-width: 300px; background: rgba(13, 18, 24, 0.95); backdrop-filter: blur(10px); transform: translateX(100%); transition: transform 0.3s ease-out; flex-direction: column; justify-content: center; align-items: flex-start; gap: 20px; padding-left: 50px; z-index: 1000; }
.main-nav.is-visible { display: flex; transform: translateX(0); }
.main-nav a { font-size: 1.25rem; color: var(--primary-text-color); text-decoration: none; padding: 0; margin: 0; transition: all 0.2s ease; }
.main-nav a:hover { color: var(--accent-color); transform: translateY(-2px) scale(1.05); }
.nav-toggle { display: block; z-index: 1001; background: transparent; border: 0; cursor: pointer; padding: 0.5em; }
.hamburger, .hamburger::before, .hamburger::after { content: ''; display: block; position: relative; width: 2em; height: 3px; background: var(--primary-text-color); border-radius: 3px; transition: all 0.3s ease; }
.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }
.nav-toggle.is-open .hamburger { transform: rotate(45deg); }
.nav-toggle.is-open .hamburger::before { transform: rotate(90deg); top: 0; }
.nav-toggle.is-open .hamburger::after { opacity: 0; }

/* ===== KONTEN UTAMA ===== */
main { padding-top: 100px; }
section { padding: 64px 0; }
.hero-section-no-box { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 32px 0; margin-bottom: 32px; }
.hero-image-box { width: 150px; height: 150px; border-radius: 50%; overflow: hidden; margin-bottom: 32px; border: 4px solid var(--accent-color); box-shadow: 0 0 20px var(--accent-glow); }
.hero-image-box img { width: 100%; height: 100%; object-fit: cover; }
.hero-text-box { max-width: 700px; }
.heading-primary { font-size: clamp(2.2rem, 10vw, 2.8rem); font-weight: 900; color: #fff; margin-bottom: 24px; }
.hero-description { margin-bottom: 32px; color: var(--secondary-text-color); }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }

/* ===== ANIMASI ===== */
.hero-section-no-box > * { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
body.loaded .hero-section-no-box > * { opacity: 1; transform: translateY(0); }
body.loaded .hero-image-box { transition-delay: 0.1s; } 
body.loaded .heading-primary { transition-delay: 0.2s; } 
body.loaded .hero-description { transition-delay: 0.3s; } 
body.loaded .hero-buttons { transition-delay: 0.4s; }
.animate-on-scroll { opacity: 0; transition: opacity 0.5s ease-out; }
.animate-on-scroll.is-visible { opacity: 1; }
.portfolio-card, .tool-item { opacity: 0; }
.animate-on-scroll.is-visible .portfolio-card,
.animate-on-scroll.is-visible .tool-item { opacity: 1; }

/* ===== PORTFOLIO & SKILLS SECTIONS ===== */
.projects-section { padding: 0; margin-bottom: 64px; }
.section-header-portfolio { text-align: center; padding: 32px 0; }
.heading-secondary { font-size: 2rem; margin-bottom: 1rem; color: #fff; }
.section-header-portfolio .heading-secondary { text-align: center; margin-bottom: 24px; }
.category-filter-buttons { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; justify-content: center; }
.filter-btn { background-color: var(--card-bg-light); border: 1px solid var(--border-color); color: var(--primary-text-color); padding: 8px 16px; border-radius: 99px; cursor: pointer; font-size: 14px; transition: all 0.2s ease; }
.filter-btn:hover { background-color: var(--accent-hover-color); border-color: var(--accent-hover-color); color: var(--bg-color); transform: translateY(-2px) scale(1.05); }
.filter-btn.active { background-color: var(--accent-color); border-color: var(--accent-color); color: var(--bg-color); font-weight: 700; }
.project-grid-portfolio { display: grid; grid-template-columns: 1fr; gap: 24px; }
.portfolio-card { background: var(--card-bg-light); border: 1px solid var(--border-color); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; position: relative; z-index: 1; text-align: left; }
.tool-item { background-color: var(--card-bg-light); padding: 24px; border-radius: 8px; border: 1px solid var(--border-color); display: flex; flex-direction: column; align-items: center; justify-content: space-between; min-height: 200px; position: relative; z-index: 1; }

/* [PERBAIKAN] Efek Hover Dibuat Instan & Lebih Terangkat */
.portfolio-card, .tool-item {
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease, opacity 0.5s ease-out;
}
.portfolio-card:hover { 
    transform: translateY(-12px) scale(1.05);
    border-color: var(--accent-color); 
    box-shadow: 0 20px 40px rgba(0,0,0,0.6), 0 0 30px var(--accent-glow); 
    z-index: 10; 
}
.tool-item:hover { 
    transform: translateY(-12px) scale(1.08);
    border-color: var(--accent-color); 
    box-shadow: 0 20px 40px rgba(0,0,0,0.6), 0 0 30px var(--accent-glow); 
    z-index: 10; 
}

.card-image-container { width: 100%; height: 180px; overflow: hidden; }
.card-image { width: 100%; height: 100%; object-fit: cover; transition: transform 0.2s ease; }
.portfolio-card:hover .card-image { transform: scale(1.05); }
.card-content { padding: 24px; display: flex; flex-direction: column; flex-grow: 1; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.pill { font-size: 12px; font-weight: 500; padding: 4px 12px; border-radius: 99px; color: #fff; text-transform: capitalize; }
.pill-project { background-color: var(--pill-project); } .pill-education { background-color: var(--pill-education); } .pill-certificate { background-color: var(--pill-certificate); } .pill-activity { background-color: var(--pill-activity); }
.status-pill { font-size: 12px; color: var(--secondary-text-color); }
.card-body { flex-grow: 1; }
.card-title { font-size: 20px; font-weight: 700; color: var(--primary-text-color); margin-bottom: 8px; }
.card-description { font-size: 14px; color: var(--secondary-text-color); margin-bottom: 16px; line-height: 1.6; }
.card-footer { margin-top: auto; padding-top: 16px; }
.tags-container { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.tag { background-color: var(--tag-bg); color: var(--secondary-text-color); font-size: 12px; padding: 4px 10px; border-radius: 6px; }
.card-link { font-weight: 500; color: var(--secondary-text-color); text-decoration: none; transition: all 0.2s ease; display: inline-flex; align-items: center; gap: 8px; font-size: 14px; }
.card-link:not(.disabled-link):hover { color: var(--accent-color); transform: scale(1.05); }
.card-link svg { stroke: var(--secondary-text-color); transition: stroke 0.2s ease; }
.card-link:not(.disabled-link):hover svg { stroke: var(--accent-color); }
.card-link.disabled-link { color: #6e7681; pointer-events: none; }
.tools-section .section-header { text-align: center; margin-bottom: 40px; }
.tools-section { padding: 48px 16px; background: var(--card-bg-dark); border-radius: 12px; backdrop-filter: blur(12px); border: 1px solid var(--border-color); margin-bottom: 64px; }
.tools-grid-box { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 24px; max-width: 900px; margin: 0 auto; }
.tool-item-icon { height: 50px; margin-bottom: 16px; display: flex; align-items: center; justify-content: center; }
.tool-item-icon img { height: 100%; max-height: 48px; width: auto; }
.tool-item-name { font-size: 16px; font-weight: 500; color: var(--primary-text-color); margin-bottom: 16px; }
.skill-level { font-size: 12px; font-weight: 500; padding: 6px 14px; border-radius: 99px; color: #fff; }
.pill-advanced { background-color: var(--pill-advanced); } .pill-expert { background-color: var(--pill-expert); } .pill-intermediate { background-color: var(--pill-intermediate); }
.pill-beginner { background-color: var(--pill-beginner); color: var(--secondary-text-color); border: 1px solid var(--tag-bg); }
.main-footer { padding: 48px 0; border-top: 1px solid var(--border-color); background-color: rgba(0,0,0,0.2); text-align: center; }
.footer-socials { display: flex; justify-content: center; align-items: center; gap: 24px; margin-bottom: 24px; flex-wrap: wrap; }
.footer-socials a { display: inline-block; transition: all 0.2s ease; }
.footer-socials a:hover { transform: translateY(-2px) scale(1.1); }
.footer-socials a svg { width: 24px; height: 24px; fill: var(--secondary-text-color); transition: fill 0.2s ease; }
.footer-socials a:hover svg { fill: var(--accent-color); }
.copyright { color: var(--secondary-text-color); font-size: 14px; }
.btn { display: inline-block; padding: 12px 24px; border-radius: 8px; text-decoration: none; font-weight: 700; transition: all 0.2s ease; text-align: center; }
.btn-primary { background-color: var(--accent-color); color: var(--bg-color); }
.btn-primary:hover { background-color: var(--accent-hover-color); transform: translateY(-2px) scale(1.05); box-shadow: 0 6px 20px var(--accent-glow); }
.btn-secondary { background-color: transparent; color: var(--primary-text-color); box-shadow: inset 0 0 0 1px var(--border-color); }
.btn-secondary:hover { background-color: var(--card-bg-light); transform: translateY(-2px) scale(1.05); }

/* ===== MEDIA QUERY UNTUK LAYAR LEBIH BESAR (Tablet & Desktop) ===== */
@media (min-width: 768px) {
    .container, .header-container { padding: 0 32px; }
    .nav-toggle { display: none; }
    .main-nav { display: flex; position: static; transform: none; background: none; backdrop-filter: none; width: auto; flex-direction: row; gap: 24px; align-items: center; padding-left: 0; }
    .main-nav a { font-size: 1rem; margin-left: 24px; position: relative; }
    .main-nav a::after { content: ''; position: absolute; width: 0; height: 2px; bottom: -5px; left: 0; background-color: var(--accent-color); transition: width 0.3s ease-out; }
    .main-nav a:hover { color: var(--accent-color); transform: translateY(-2px); }
    .main-nav a:hover::after { width: 100%; }
    section { padding: 96px 0; }
    .hero-image-box { width: 180px; height: 180px; }
    .heading-primary { font-size: clamp(2.5rem, 6vw, 4rem); }
    .project-grid-portfolio { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .tools-section { padding: 48px; }
}
@media (min-width: 1024px) {
    .project-grid-portfolio { grid-template-columns: repeat(3, 1fr); }
}