@import url('https://fonts.googleapis.com/css2?family=Fira+Code&display=swap');

body {
  margin: 0;
  font-family: 'Fira Code', monospace;
  background: #0d1117;
  color: #c9d1d9;
  text-align: center;
  padding: 50px;
}

h1, h2, h3 {
  color: #58a6ff;
}

p {
  color: #8b949e;
}

nav {
  margin: 15px 0 25px 0;
}

nav a {
  margin: 0 15px;
  text-decoration: none;
  color: #58a6ff;
  font-weight: bold;
  transition: color 0.3s, text-shadow 0.3s;
}

nav a:hover {
  color: #00ffcc;
  text-shadow: 0 0 8px #00ffcc;
}

button, .btn {
  background: #21262d;
  border: 1px solid #58a6ff;
  color: #58a6ff;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.3s;
  display: inline-block;
  text-decoration: none;
}

button:hover, .btn:hover {
  background: #58a6ff;
  color: #0d1117;
  box-shadow: 0 0 10px #58a6ff;
}

h1 {
  position: relative;
  padding-bottom: 10px;
  margin-bottom: 20px;
}

h1::after {
  content: "";
  display: block;
  width: 120px;
  height: 2px;
  background: #58a6ff;
  margin: 10px auto 0 auto;
  border-radius: 2px;
  box-shadow: 0 0 6px rgba(88,166,255,0.6);
}

.glow {
  color: #00ffcc;
  text-shadow: 0 0 5px #00ffcc,
               0 0 10px #00ffcc,
               0 0 20px #00ffcc;
}

.intro-box {
  background: #161b22;
  padding: 25px 20px;
  margin: 20px auto 30px auto;
  max-width: 800px;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0,255,200,0.3);
  text-align: center;
  font-size: 16px;
  line-height: 1.6;
}

.about-tool {
  background: #161b22;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(88,166,255,0.2);
  margin: 25px auto;
  max-width: 900px;
  text-align: left;
}

.tool-content {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.tool-img {
  max-width: 320px;
  border-radius: 10px;
  box-shadow: 0 0 12px rgba(88,166,255,0.4);
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tool-img:hover {
  transform: scale(1.05);
  box-shadow: 0 0 15px rgba(88,166,255,0.7);
}

.tool-text {
  flex: 1;
  text-align: left;
}

.tool-text h2 {
  color: #33ffcc;
  margin-top: 0;
}

.tool-text h3 {
  color: #58a6ff;
  margin-top: 20px;
}

.tool-text ul {
  padding-left: 20px;
  margin: 10px 0 20px 0;
}

.tool-text li {
  margin: 6px 0;
}

/* ============= DOWNLOAD SECTION ============= */
.download-block {
  text-align: left;   /* semua ke kiri */
  margin-top: 20px;
}

.download-date {
  font-weight: bold;
  font-size: 15px;
  color: #fff;
  margin-bottom: 8px;
}

.download-size {
  color: #58a6ff;
  font-size: 14px;
  margin: 6px 0;
}

.download-block .btn {
  display: block;       /* button full row, ikut kiri */
  margin: 6px 0 14px;   /* jarak atas & bawah */
  text-align: left;     /* text dalam button align kiri */
  width: fit-content;   /* ikut panjang teks button */
}


/* ============================================ */

#qr-container {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 20px;
  flex-wrap: wrap;
}

#qr-container div {
  text-align: center;
}

#qr-container img {
  width: 150px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 0 12px rgba(88,166,255,0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#qr-container img:hover {
  transform: scale(1.05);
  box-shadow: 0 0 15px rgba(88,166,255,0.7);
}

.modal {
  display: none;
  position: fixed;
  top:0; left:0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.85);
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  max-width: 90%;
  max-height: 90%;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0,255,200,0.6);
  cursor: pointer;
  transition: transform 0.3s ease;
}

.modal-content:hover {
  transform: scale(1.02);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 40px;
  font-weight: bold;
  color: #fff;
  cursor: pointer;
  transition: color 0.3s;
}

.modal-close:hover {
  color: #00ffcc;
}

.powered {
  font-size: 12px;
  color: #00ffcc;
  text-align: center;
  text-shadow: 0 0 3px #00ffcc, 0 0 6px #00ffcc, 0 0 12px #00ffcc;
  position: relative;
  display: inline-block;
  margin-top: 15px;
  padding-bottom: 14px;
}

.powered::before {
  content: "";
  position: absolute;
  left: -40px;
  bottom: 0;
  height: 4px;
  width: 40px;
  background: linear-gradient(90deg, transparent, #00ffcc, transparent);
  border-radius: 4px;
  animation: laser-scan 2s ease-in-out infinite alternate;
  box-shadow: 0 0 10px #00ffcc, 0 0 20px #00ffcc;
}

@keyframes laser-scan {
  from { left: 0; }
  to   { left: calc(100% - 40px); }
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in {
  opacity: 0;
  animation: fadeSlideUp 1s ease forwards;
}

.fade-in.delay-1 { animation-delay: 0.3s; }
.fade-in.delay-2 { animation-delay: 0.6s; }
.fade-in.delay-3 { animation-delay: 0.9s; }
.fade-in.delay-4 { animation-delay: 1.2s; }

@media (max-width: 768px) {
  body { padding: 20px; }
  nav a { display: block; margin: 10px 0; }
  .tool-content { flex-direction: column; text-align: center; }
  .tool-text { text-align: center; }
  .tool-text ul { text-align: left; display: inline-block; }
  .tool-img { max-width: 90%; margin: 0 auto; }
  .modal-content { max-width: 90%; max-height: 70%; }
  #qr-container img { width: 120px; }

  /* kekalkan kiri masa mobile */
  .download-block { text-align: left; }
}