:root {
  --bg: #f9fafc;
  --primary: #2563eb;
  --secondary: #1e40af;
  --text: #333;
  --muted: #666;
  --radius: 12px;
  --shadow: 0 6px 16px rgba(0,0,0,0.1);
  font-family: 'Poppins', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-family: 'Poppins', sans-serif;
  overflow-x: hidden;
  position: relative;
}

/* ===== Dekoratif background (doodle / shape melayang) ===== */
body::before,
body::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  opacity: 0.15;
  z-index: -1;
  animation: float 10s infinite ease-in-out;
}

body::before {
  width: 220px;
  height: 220px;
  background: var(--primary);
  top: 100px;
  left: -80px;
}

body::after {
  width: 300px;
  height: 300px;
  background: var(--secondary);
  bottom: -100px;
  right: -120px;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  background: var(--primary);
  color: #fff;
}

.navbar .logo {
  font-weight: 700;
  font-size: 1.4rem;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 20px;
}

.nav-links a {
  text-decoration: none;
  color: #fff;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: #dbeafe;
}

/*Tambahan tombol Dark Mode */
#darkModeBtn {
  background: #fff;
  color: var(--primary);
  border: none;
  border-radius: var(--radius);
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.3s ease;
}

#darkModeBtn:hover {
  background: var(--secondary);
  color: #fff;
}

/* Hero */
.hero {
  text-align: center;
  padding: 60px 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
}

.hero h1 {
  font-size: 2.5rem;
}

.hero p {
  margin-top: 10px;
  font-size: 1.1rem;
}

/* Portfolio grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 40px;
}

.card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card img {
  width: 100%;
  display: block;
}

.card h3 {
  margin: 16px;
  color: var(--primary);
}

.card p {
  margin: 0 16px 16px;
  color: var(--muted);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.15);
}

/* About */
.about {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  padding: 60px;
}

.about-img img {
  width: 280px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.about-text h2 {
  color: var(--primary);
  margin-bottom: 12px;
}

/* 🔘 Tambahan untuk tombol tampil/sembunyi foto */
.tombol-foto {
  text-align: center;
  margin-bottom: 40px;
}

.tombol-foto button {
  padding: 10px 16px;
  border: none;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  cursor: pointer;
  margin: 0 6px;
  transition: background 0.3s ease;
}

.tombol-foto button:hover {
  background: var(--secondary);
}

/* Contact */
.contact {
  max-width: 600px;
  margin: 60px auto;
  padding: 40px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}

.contact h2 {
  margin-bottom: 20px;
  color: var(--primary);
  font-size: 1.6rem;
}

/* ==== FORM CONTACT ==== */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: var(--radius);
  font-size: 1rem;
  transition: all 0.3s ease;
  background: #fdfdfd;
  font-family: 'Poppins', sans-serif;
}

/* Efek saat fokus pada input */
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 8px rgba(37, 99, 235, 0.3);
  outline: none;
  background: #fff;
}

/* Tombol kirim */
.contact-form button {
  padding: 12px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}

.contact-form button:hover {
  background: var(--secondary);
  transform: translateY(-2px);
}

/* Notifikasi hasil kirim */
.notif {
  margin-top: 12px;
  font-weight: 600;
  transition: all 0.3s ease;
}

/* Efek tambahan untuk tampilan form */
.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #888;
  font-style: italic;
}

/* Responsive Contact Section */
@media (max-width: 480px) {
  .contact {
    padding: 24px;
  }

  .contact h2 {
    font-size: 1.4rem;
  }

  .contact-form button {
    font-size: 0.95rem;
    padding: 10px;
  }
}


/* 🔘 Tambahan Notifikasi dari JavaScript */
.notif {
  margin-top: 16px;
  font-weight: 600;
  text-align: center;
}

/* Responsif */
@media (max-width: 768px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}

/* Dark Mode Styles */
.dark-mode {
  background-color: #111;
  color: #f9f9f9;
}

.dark-mode .card {
  background: #1c1c1c;
  color: #f9f9f9;
}

.dark-mode .contact {
  background: #1c1c1c;
}

.dark-mode .navbar {
  background: #0f172a;
}

.dark-mode #darkModeBtn {
  background: #2563eb;
  color: white;
}

/* Perbaikan tampilan "Baca selengkapnya" */
details {
  margin-top: 10px;
  font-size: 0.95rem;
  color: #333;
  background: #f9f9ff;
  border: 1px solid rgba(43, 109, 246, 0.12);
  border-radius: 8px;
  padding: 8px 12px;
}

summary {
  cursor: pointer;
  font-weight: 500;
  color: var(--accent1);
  padding-left: 0; 
  margin-left: 0;
  display: block;
}

summary:hover {
  color: var(--accent2);
  text-decoration: underline;
}

details[open] summary {
  margin-bottom: 6px;
}

details p {
  margin-top: 4px;
  line-height: 1.6;
  color: #444;
}

details a {
  color: var(--accent1);
  font-weight: 600;
  text-decoration: none;
}

details a:hover {
  text-decoration: underline;
}