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

/* Latar belakang dan font */
body {
  font-family: "Inter", sans-serif;
  color: #3b221e;
  line-height: 1.6;
  overflow-x: hidden;
  background: linear-gradient(135deg, #ffffff 0%, #fef8f7 100%);
  background-image: linear-gradient(
      rgba(221, 36, 15, 0.137) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(211, 54, 36, 0.185) 1px, transparent 1px);
  background-size: 50px 50px;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: -10vh -10vw auto -10vw;
  height: 60vh;
  z-index: -2;
  pointer-events: none;
  filter: blur(22px);
  animation: glow 16s ease-in-out infinite alternate;
}

@keyframes glow {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-2vh) scale(1.03);
  }
}

/* Kontainer partikel */
.particles-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

/* Shape bola abstrak */
.shape {
  position: absolute;
  pointer-events: none;
  z-index: -1;
  border-radius: 50%;
  width: var(--size, 100px);
  height: var(--size, 100px);
  background: var(--color, rgba(100, 180, 255, 0.15));
  filter: blur(var(--blur, 20px));
  top: var(--top, auto);
  left: var(--left, auto);
  right: var(--right, auto);
  bottom: var(--bottom, auto);
  opacity: 0.7;
  will-change: transform;
}

/* Section relative */
.hero,
.features,
.database-section,
.screenshots-section,
#download,
#about {
  position: relative;
}

/* Penempatan shape per section */
.hero .shape {
  top: 20%;
  right: 10%;
  width: 200px;
  height: 200px;
  background: #ff9a9e;
}

.features .shape {
  top: 30%;
  right: 5%;
  width: 200px;
  height: 200px;
  background: #feca57;
}

.database-section .shape {
  top: 48%;
  left: 8%;
  width: 200px;
  height: 200px;
  background: #48dbfb;
}

#about::before {
  content: "";
  position: absolute;
  top: -40%;
  left: -40%;
  width: 150%;
  height: 150%;
  background: radial-gradient(
    circle,
    rgba(231, 76, 60, 0.15) 0%,
    transparent 70%
  );
  z-index: -1;
  pointer-events: none;
  opacity: 0.4;
  filter: blur(40px);
}

/* Header dan navigasi */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  padding: 1rem 5%;
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 40px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo img {
  height: 50px;
  transition: transform 0.3s ease;
}

.logo:hover img {
  transform: scale(1.05);
}

.logo-text {
  font-family: "Montserrat", sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: #e74c3c;
  letter-spacing: -0.5px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-link {
  text-decoration: none;
  color: #1e293b;
  font-weight: 500;
  font-size: 1rem;
  position: relative;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #e74c3c;
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: #e74c3c;
}

.nav-link:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.menu-toggle span {
  width: 28px;
  height: 3px;
  background-color: #1e293b;
  margin: 4px 0;
  border-radius: 2px;
  transition: 0.3s;
}

/* Hero section */
.hero {
  padding: 140px 5% 100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1400px;
  margin: 0 auto;
  gap: 4rem;
  position: relative;
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-content h1 {
  font-family: "Montserrat", sans-serif;
  font-size: 3.5rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 1.2rem;
}

.hero-content p {
  font-size: 1.2rem;
  color: #475569;
  margin-bottom: 2rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
}

.cta-button {
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.cta-button.primary {
  background-color: #e74c3c;
  color: white;
}

.cta-button.secondary {
  background-color: white;
  color: #e74c3c;
  border: 2px solid #e74c3c;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(231, 76, 60, 0.2);
}

.hero-image {
  flex: 1.3;
  display: flex;
  justify-content: center;
  perspective: 1200px;
}

.hero-image img {
  max-width: 100%;
  height: auto;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.hero-image img:hover {
  transform: scale(1.06) rotateY(4deg) translateY(-6px);
}

/* Section title */
.section-title {
  text-align: center;
  font-family: "Montserrat", sans-serif;
  font-size: 2.2rem;
  font-weight: 600;
  color: #1e293b;
  margin: 4rem 0 2rem;
}

/* Features grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 4rem;
}

.feature-card {
  background: white;
  border-radius: 12px;
  padding: 1.8rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #e2e8f0;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.feature-card h3 {
  font-size: 1.3rem;
  color: #1e293b;
  margin-bottom: 0.8rem;
}

.feature-card p {
  font-size: 0.95rem;
  color: #64748b;
  line-height: 1.6;
}

/* Database section */
.database-section {
  padding: 2rem 0 4rem;
}

.database-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.db-card {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  border: 1px solid #e2e8f0;
  transition: transform 0.3s ease;
}

.db-card:hover {
  transform: translateY(-4px);
}

.db-icon {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.8rem;
}

.db-icon img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}

.db-card h4 {
  font-size: 1.1rem;
  color: #1e293b;
}

/* Screenshots section */
.screenshots-section {
  padding: 3rem 0;
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.screenshot-card {
  text-align: center;
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  padding: 1.5rem;
}

.screenshot-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 1rem;
  cursor: pointer;
}

.screenshot-card h3 {
  font-size: 1.3rem;
  color: #1e293b;
  margin-bottom: 0.8rem;
  font-weight: 600;
}

.screenshot-card p {
  font-size: 0.95rem;
  color: #64748b;
  line-height: 1.6;
}

/* Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 999;
}

.lightbox.active {
  visibility: visible;
  opacity: 1;
}

.lightbox img {
  max-width: 90%;
  max-height: 90%;
  border-radius: 10px;
}

/* Download section */
#download {
  padding: 4rem 0;
  text-align: center;
}

#download h2 {
  font-family: "Montserrat", sans-serif;
  font-size: 2.2rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 3rem;
}

.platforms {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.platform {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding: 2rem;
  border-radius: 12px;
  background: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  border: 1px solid #e2e8f0;
  transition: transform 0.3s ease;
  max-width: 220px;
}

.platform:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.platform img {
  width: 48px;
  height: 48px;
}

.platform h3 {
  font-size: 1.3rem;
  color: #1e293b;
  margin: 0;
}

.platform a {
  text-decoration: none;
}

.platform-button {
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
}

.platform-button.primary {
  background-color: #e74c3c;
  color: white;
}

.platform-button.secondary {
  background-color: white;
  color: #e74c3c;
  border: 2px solid #e74c3c;
}

.platform-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(231, 76, 60, 0.2);
}

/* About section */
.about-tabular {
  background: rgba(30, 41, 59, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 60px 40px;
  max-width: 1500px;
  margin: 80px auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  text-align: left;
  color: white;
}

.about-tabular .logo {
  width: 100px;
  height: 100px;
  flex-shrink: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  margin: 0;
}

.about-tabular .logo img {
  max-width: 80%;
  max-height: 80%;
  object-fit: contain;
  height: 80px;
}

.about-tabular .content {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  max-width: 600px;
}

.about-tabular h2 {
  font-family: "Montserrat", sans-serif;
  font-size: 1.8rem;
  font-weight: 600;
  margin: 0;
  color: white;
}

.about-tabular p {
  font-size: 1rem;
  margin: 0;
  color: #e2e8f0;
}

.about-tabular .version-info {
  font-size: 0.95rem;
  color: #cbd5e1;
}

.about-tabular .github-link {
  display: inline-block;
  font-size: 0.95rem;
  text-decoration: none;
  color: #e74c3c;
  transition: color 0.3s ease;
  margin-top: 0.2rem;
}

.about-tabular .github-link:hover {
  color: #ff7f70;
  text-decoration: underline;
}

.about-tabular .credit {
  font-size: 0.85rem;
  color: #94a3b8;
  margin: 0;
}

.about-tabular .copyright {
  font-size: 0.85rem;
  color: #718096;
  margin: 0;
  white-space: nowrap;
}

/* Responsive */
@media (max-width: 992px) {
  .hero {
    flex-direction: column;
    text-align: center;
    gap: 3rem;
  }

  .hero-image {
    flex: 1;
  }

  .about-tabular {
    padding: 40px 30px;
    max-width: 700px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.98);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 1rem 0;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    margin: 0 1rem;
  }

  .nav-menu.active {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-content h1 {
    font-size: 2.8rem;
  }

  .section-title {
    font-size: 2rem;
  }

  /* Burger animation */
  .menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
  }
  .menu-toggle.open span:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
  }
}