@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&family=Roboto:wght@300;400&display=swap');

:root {
  --primary-color: #007bff;
  --secondary-color: #2c3e50;
  --accent-color: #f39c12;
  --text-color: #f8f9fa;
  --bg-color: #121212;
  --card-bg: #1e1e1e;
  --shadow: 4px 4px 15px rgba(0,0,0,0.4);
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Roboto', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text-color);
  background-color: var(--bg-color);
  line-height: 1.8;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: var(--primary-color);
}

img {
  max-width: 100%;
}

section {
  padding: 6rem 1rem;
}

/* Global Styles */
.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}
.section-title::after {
  content: '';
  width: 60px;
  height: 4px;
  background-color: var(--accent-color);
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
}

/* Header & Nav */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-color);
  padding: 1rem 2rem;
  box-shadow: var(--shadow);
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}
nav .logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary-color);
  text-transform: uppercase;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}
.nav-link {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
}
.nav-link:hover {
  color: var(--primary-color);
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(rgba(18, 18, 18, 0.8), rgba(18, 18, 18, 0.8)), url('https://source.unsplash.com/1600x900/?tech,abstract') no-repeat center center/cover;
}
.hero-content {
  z-index: 10;
  max-width: 800px;
  padding: 0 1rem;
}
.hero-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}
.typing-text {
  color: var(--primary-color);
  font-weight: bold;
  border-right: 2px solid var(--text-color);
  animation: blink-caret 0.75s step-end infinite;
}
@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: var(--text-color); }
}
.hero-subtitle {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: #bdc3c7;
}
.cta-button {
  background-color: var(--primary-color);
  color: white;
  padding: 0.8rem 2rem;
  border-radius: 50px;
  text-transform: uppercase;
  font-weight: bold;
  letter-spacing: 1px;
  transition: transform 0.3s ease, background-color 0.3s ease;
  display: inline-block;
}
.cta-button:hover {
  background-color: var(--accent-color);
  transform: translateY(-3px);
}
.cta-button i {
  margin-left: 10px;
}

/* About Section (Flip Card) */
.flip-card-container {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  height: 450px;
  perspective: 1000px;
}
.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}
.flip-card-inner.flipped {
  transform: rotateY(180deg);
}
.flip-card-front, .flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  background: var(--card-bg);
  border-radius: 15px;
  box-shadow: var(--shadow);
  padding: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.flip-card-front {
  transform: rotateY(0deg);
}
.flip-card-back {
  transform: rotateY(180deg);
  text-align: left;
}
.flip-card-back h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}
.resume-details {
  margin-bottom: 1.5rem;
}
.resume-details p {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}
.resume-icon {
  color: var(--accent-color);
}
.flip-card-back h4 {
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.skills-list {
  list-style-type: none;
  padding-left: 0;
  margin-top: 1rem;
}
.skills-list li {
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1.5rem;
}
.skills-list li::before {
  content: '▪';
  color: var(--accent-color);
  font-size: 1.2rem;
  position: absolute;
  left: 0;
  line-height: 1.2;
}
.profile-pic {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--primary-color);
  transition: transform 0.3s ease;
}
.profile-pic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-text {
  margin-top: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.flip-button {
  background-color: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  text-transform: uppercase;
  font-weight: bold;
  cursor: pointer;
  margin-top: 1.5rem;
  transition: background-color 0.3s ease, color 0.3s ease;
}
.flip-button:hover {
  background-color: var(--primary-color);
  color: white;
}
.flip-button i {
  margin: 0 5px;
}

/* Projects, Certificates, Services Styling */
.projects-grid, .certificates-grid, .services-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
}
.project-card, .certificate-card, .service-item {
  background: var(--card-bg);
  border-radius: 15px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}
.project-card:hover, .certificate-card:hover, .service-item:hover {
  transform: translateY(-10px) rotate(1deg);
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}
.project-card img, .certificate-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.project-card:hover img, .certificate-card:hover img {
  transform: scale(1.05);
}
.project-info, .certificate-info {
  padding: 1.5rem;
  text-align: center;
}
.project-info h3, .certificate-info h3 {
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}
.certificate-card img {
  object-fit: contain;
  padding: 1rem;
}
.service-item {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.service-item:hover {
  transform: scale(1.05);
  background: linear-gradient(45deg, var(--secondary-color), #2c3e50);
}
.service-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}
.service-item h3 {
  color: var(--accent-color);
  margin-bottom: 1rem;
}
.service-item p {
  color: #bdc3c7;
}

/* ======================================= */
/* MODAL STYLING (BAGIAN YANG DIPERBAIKI)  */
/* ======================================= */
.modal {
  display: none; /* Sembunyikan secara default */
  position: fixed; /* Ini KUNCINYA: membuat modal keluar dari alur dokumen */
  z-index: 1000; /* Memastikan modal ada di lapisan paling atas */
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto; /* Agar bisa di-scroll jika kontennya panjang */
  background-color: rgba(0, 0, 0, 0.8); /* Latar belakang gelap transparan */
  align-items: center; /* Vertikal tengah */
  justify-content: center; /* Horizontal tengah */
}

.modal-content {
  background-color: var(--card-bg);
  margin: auto;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--shadow);
  max-width: 80%;
  width: 700px;
  position: relative;
  text-align: center;
}

#modal-title {
  color: var(--primary-color);
}

.modal-slideshow {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 1.5rem 0;
  gap: 1rem;
}

#modal-image {
  max-height: 400px;
  width: auto;
  max-width: 100%;
  border-radius: 10px;
}

.prev-button, .next-button {
  background: var(--secondary-color);
  border: none;
  color: white;
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-size: 1.5rem;
  border-radius: 50%;
  transition: background-color 0.3s ease;
}

.prev-button:hover, .next-button:hover {
  background-color: var(--primary-color);
}

#modal-description {
  margin-top: 1rem;
  color: #bdc3c7;
  line-height: 1.6;
}

.close-button {
  position: absolute;
  top: 15px;
  right: 25px;
  color: #aaa;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.3s ease;
}

.close-button:hover {
  color: var(--primary-color);
}

/* Footer */
.footer {
  background-color: var(--secondary-color);
  padding: 2rem 1rem;
  text-align: center;
}
.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}
.social-links {
  margin-top: 1rem;
}
.social-links a {
  font-size: 1.5rem;
  margin: 0 0.8rem;
  color: var(--text-color);
  transition: color 0.3s ease;
}
.social-links a:hover {
  color: var(--primary-color);
}

/* Contact Page Styling */
.contact-section {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.contact-container {
  background-color: var(--card-bg);
  padding: 3rem;
  border-radius: 15px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-size: 1.1rem;
}
.contact-item .contact-icon {
  color: var(--primary-color);
  font-size: 1.5rem;
}
.social-links-contact {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1rem;
}
.social-links-contact a {
  font-size: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title { font-size: 2.5rem; }
  .flip-card-container { height: auto; padding: 2rem 0; }
  .flip-card-front, .flip-card-back { padding: 2rem; position: static; backface-visibility: visible; transform: none !important; margin-bottom: 1rem;}
  .flip-card-inner.flipped { transform: none; }
  .flip-card-inner { transform-style: flat; }
  .profile-pic { width: 120px; height: 120px; }
  nav ul { display: none; } /* Ini bisa diubah jika ingin membuat menu hamburger */
  nav { flex-direction: column; gap: 1rem; }
  .footer-content { text-align: center; }
}

@media (max-width: 600px) {
  .modal-content {
    max-width: 95%;
    padding: 1.5rem;
  }
}

/* Scroll Animations */
.animate-section {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
  will-change: opacity, transform;
}
.animate-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}