:root {
  /* Warna diambil dari logo PT Human Technology Solutions (assets/logo-icon.png) */
  --bg: #ffffff;
  --bg-alt: #f4f9fc;
  --surface: #ffffff;
  --border: #e1e8ee;
  --border-subtle: #e9f1f7;
  --text: #142433;
  --text-muted: #5c7183;
  --text-tertiary: #98a7b3;
  --blue: #28a3de;
  --blue-deep: #1c7bab;
  --blue-text: #ffffff;
  --radius: 16px;
  --shadow: 0 10px 30px -12px rgba(20, 36, 51, 0.18);
  font-size: 16px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

h1, h2, h3 { font-weight: 800; letter-spacing: -0.02em; color: var(--text); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); margin-bottom: 16px; }
h3 { font-size: 1.15rem; margin-bottom: 8px; }

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}

.section-text { color: var(--text-muted); margin-bottom: 14px; max-width: 560px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  color: var(--blue-text);
  box-shadow: 0 8px 20px -8px rgba(40, 163, 222, 0.45);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 24px -8px rgba(40, 163, 222, 0.6); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }

/* NAVBAR */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--text); }
.brand-mark {
  width: 64px; height: 64px;
  object-fit: contain;
}
.brand-name strong { color: var(--blue); }
.nav-links { display: flex; align-items: center; gap: 28px; font-weight: 500; font-size: 0.95rem; }
.nav-links a { color: var(--text-muted); transition: color 0.15s ease; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--blue);
  color: var(--blue-text) !important;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 700;
}
.nav-cta:hover { background: var(--blue-deep) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; }

/* HERO */
.hero {
  position: relative;
  overflow: hidden;
  padding: 120px 0 100px;
  background: radial-gradient(circle at 20% 20%, #eaf6fc 0%, var(--bg) 60%);
}
.hero-inner { position: relative; z-index: 1; max-width: 720px; }
.eyebrow {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-deep);
  margin-bottom: 16px;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.15; margin-bottom: 20px; }
.hero-sub { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 32px; max-width: 560px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-glow {
  position: absolute;
  top: -100px; right: -150px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(40, 163, 222, 0.18), transparent 70%);
  border-radius: 50%;
}

/* SECTIONS */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 70px;
}
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow);
}
.stat-num { display: block; font-size: 2rem; font-weight: 800; color: var(--blue); }
.stat-label { font-size: 0.85rem; color: var(--text-muted); }

.vm-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.vm-card {
  background: linear-gradient(155deg, var(--blue-deep), var(--blue));
  color: #fff;
  border-radius: var(--radius);
  padding: 36px;
}
.vm-card h3 { color: #fff; }
.vm-icon { font-size: 1.8rem; display: block; margin-bottom: 10px; }
.vm-card p { color: rgba(255, 255, 255, 0.85); }
.vm-card ul { display: flex; flex-direction: column; gap: 10px; color: rgba(255, 255, 255, 0.85); }
.vm-card ul li { padding-left: 22px; position: relative; }
.vm-card ul li::before {
  content: "✓";
  position: absolute; left: 0; color: #fff; font-weight: 700;
}

.services-grid, .founders-grid, .testimonials-grid {
  display: grid;
  gap: 24px;
  margin-top: 40px;
}
.services-grid { grid-template-columns: repeat(3, 1fr); }
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--blue); }
.service-icon { font-size: 1.8rem; display: block; margin-bottom: 12px; }
.service-card p { color: var(--text-muted); font-size: 0.95rem; }

.product-card {
  display: flex;
  gap: 32px;
  align-items: center;
  background: #0b0b0c;
  border-radius: var(--radius);
  padding: 40px;
  margin-top: 32px;
  box-shadow: var(--shadow);
}
.product-mark {
  flex-shrink: 0;
  width: 96px; height: 96px;
  border-radius: 22px;
  background: #c7f751;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem;
  font-weight: 800;
  color: #0b0b0c;
}
.product-body { flex: 1; }
.product-heading { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.product-heading h3 { color: #fff; margin: 0; font-size: 1.4rem; }
.product-badge {
  background: rgba(199, 247, 81, 0.15);
  color: #c7f751;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
}
.product-body > p { color: #a8a8b0; margin-bottom: 18px; max-width: 620px; }
.product-features { display: flex; flex-direction: column; gap: 8px; }
.product-features li { padding-left: 22px; position: relative; color: #d0d0d6; font-size: 0.95rem; }
.product-features li::before {
  content: "✓";
  position: absolute; left: 0; color: #c7f751; font-weight: 700;
}

.founders-grid { grid-template-columns: repeat(2, 1fr); }
.founder-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow);
}
.founder-photo {
  width: 128px; height: 128px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background-color: var(--blue);
  background-size: cover;
  background-position: top center;
  background-repeat: no-repeat;
  display: flex; align-items: center; justify-content: center;
  border: 4px solid var(--bg-alt);
  box-shadow: 0 6px 18px -6px rgba(20, 36, 51, 0.3);
}
.founder-initial { color: #fff; font-weight: 800; font-size: 1.4rem; }
.founder-role { display: inline-block; color: var(--blue); font-weight: 600; font-size: 0.9rem; margin-bottom: 12px; }
.founder-card p { color: var(--text-muted); font-size: 0.95rem; }

.testimonials-grid { grid-template-columns: repeat(3, 1fr); }
.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}
.quote { color: var(--text); font-style: italic; margin-bottom: 20px; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-author strong { display: block; font-size: 0.95rem; color: var(--text); }
.testimonial-author span { color: var(--text-muted); font-size: 0.85rem; }
.avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.contact-list { display: flex; flex-direction: column; gap: 20px; margin-top: 28px; }
.contact-item { display: flex; gap: 14px; }
.contact-icon { font-size: 1.4rem; }
.contact-item strong { display: block; margin-bottom: 2px; color: var(--text); }
.contact-item p { color: var(--text-muted); font-size: 0.95rem; }
.contact-item a:hover { color: var(--blue); }

.contact-form {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-form label { font-size: 0.9rem; font-weight: 600; display: flex; flex-direction: column; gap: 6px; color: var(--text); }
.contact-form input, .contact-form textarea {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  resize: vertical;
}
.contact-form input::placeholder, .contact-form textarea::placeholder { color: var(--text-tertiary); }
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--blue); outline-offset: 1px; }
.form-note { font-size: 0.8rem; color: var(--text-muted); text-align: center; }
.form-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.form-actions .btn { flex: 1; gap: 8px; }
.btn-whatsapp { background: #25d366; box-shadow: 0 8px 20px -8px rgba(37, 211, 102, 0.5); }
.btn-whatsapp:hover { box-shadow: 0 12px 24px -8px rgba(37, 211, 102, 0.65); }

/* FOOTER */
.footer { background: #0f2233; color: #9db3c4; padding: 28px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 0.9rem; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1px solid #294256;
  color: #9db3c4;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  text-transform: uppercase;
}
.footer-social a:hover { border-color: var(--blue); color: var(--blue); }

/* REVEAL ANIMATION */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* RESPONSIVE */
@media (max-width: 860px) {
  .about-grid, .vm-grid, .contact-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .founders-grid { grid-template-columns: 1fr; max-width: 360px; margin-left: auto; margin-right: auto; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .product-card { flex-direction: column; text-align: center; padding: 32px; }
  .product-heading { justify-content: center; }
}

@media (max-width: 700px) {
  .nav-links {
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 16px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding: 100px 0 70px; }
}