/* Java Inovasi Digital — style.css */

:root {
  --color-primary: #1B5E20;
  --color-primary-dark: #0D3320;
  --color-heading: #0B1710;
  --color-text: #475569;
  --color-bg: #FCFCF9;
  --color-card-bg: #FFFFFF;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  background-image: radial-gradient(circle at 85% 0%, rgba(27, 94, 32, 0.05) 0%, transparent 50%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ---- PAGE WRAPPER ---- */
.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px 60px;
}

/* ---- HERO ---- */
.hero {
  display: flex;
  align-items: center;
  gap: 64px;
  margin-bottom: 72px;
}
.hero-text { flex: 1.1; }
.hero-text h1 {
  font-family: 'Poppins', sans-serif;
  font-size: clamp(32px, 4.5vw, 54px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--color-heading);
  margin-bottom: 24px;
}
.hero-text h1 span { color: var(--color-primary); }
.hero-text p {
  font-size: clamp(15px, 1.4vw, 17px);
  color: var(--color-text);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 40px;
}

/* Premium Sleek Button */
.btn-wa-hero {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  background: var(--color-primary-dark);
  color: #fff;
  padding: 14px 32px;
  border-radius: 50px;
  box-shadow: 0 10px 25px -5px rgba(13, 51, 32, 0.25);
  transition: all .25s ease;
}
.btn-wa-hero:hover { 
  background: var(--color-heading); 
  transform: translateY(-2px); 
  box-shadow: 0 15px 35px -5px rgba(13, 51, 32, 0.3);
}
.btn-wa-hero svg { width: 18px; height: 18px; }

.hero-img { flex: 0.9; max-width: 480px; position: relative; }
/* Subtle floating effect for image */
.hero-img img { width: 100%; filter: drop-shadow(0 20px 40px rgba(27,94,32,0.06)); }

/* ---- CARDS ---- */
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.card {
  background: var(--color-card-bg);
  border-radius: 16px;
  padding: 32px 24px;
  border: 1px solid rgba(27, 94, 32, 0.04);
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.03), 0 4px 6px -4px rgba(0, 0, 0, 0.02);
  transition: transform .3s ease, box-shadow .3s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px -10px rgba(27, 94, 32, 0.08), 0 8px 12px -6px rgba(27, 94, 32, 0.04);
}
.card-icon {
  margin-bottom: 20px;
  display: flex;
}
.card h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-heading);
  margin-bottom: 10px;
}
.card p { 
  font-size: 14px; 
  color: var(--color-text); 
  line-height: 1.6; 
}

/* ---- FOOTER ---- */
footer {
  border-top: 1px solid rgba(0,0,0,0.04);
  padding: 40px 24px;
  text-align: center;
  background: transparent;
}
footer p { font-size: 13px; color: #94a3b8; letter-spacing: 0.01em; }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .hero { gap: 40px; }
}

@media (max-width: 640px) {
  .hero { flex-direction: column; gap: 32px; text-align: center; }
  .hero-text p { margin-left: auto; margin-right: auto; }
  .hero-img { max-width: 280px; margin: 0 auto; }
  .cards { grid-template-columns: 1fr 1fr; gap: 16px; }
  .card { padding: 24px 20px; }
}

@media (max-width: 400px) {
  .cards { grid-template-columns: 1fr; }
}