/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  /* warna */
  --bg: #ECEEF1;
  --surface: #FFFFFF;
  --ink: #16213A;
  --ink-soft: #4B5871;
  --teal: #2F8F82;
  --teal-soft: #E3F1EE;
  --amber: #E2A33D;
  --coral: #D1495B;
  --border: #D3D7DE;

  /* tipografi */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --wrap: 1080px;
}

/* ============================================
   RESET DASAR
   ============================================ */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 .5em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.05rem; font-weight: 700; }

p { margin: 0 0 1em; color: var(--ink-soft); }

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

ul { list-style: none; margin: 0; padding: 0; }

.mono { font-family: var(--font-mono); }

.muted { color: var(--ink-soft); font-family: var(--font-body); font-weight: 400; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

/* fokus keyboard harus kelihatan */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  background: var(--ink);
  color: #fff;
  padding: 8px 14px;
  border-radius: 6px;
  z-index: 100;
}

/* ============================================
   HEADER / NAV
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(236, 238, 241, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--ink);
  white-space: nowrap;
}
.logo span { color: var(--teal); }
.logo:hover { text-decoration: none; }

.nav {
  display: flex;
  gap: 22px;
  flex: 1;
}

.nav-link {
  color: var(--ink-soft);
  font-size: .95rem;
  font-weight: 500;
}
.nav-link:hover,
.nav-link.active {
  color: var(--teal);
  text-decoration: none;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .72rem;
  color: var(--ink-soft);
  letter-spacing: .03em;
  white-space: nowrap;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 0 rgba(47,143,130,.5);
  animation: pulse 2.4s infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(47,143,130,.45); }
  70%  { box-shadow: 0 0 0 6px rgba(47,143,130,0); }
  100% { box-shadow: 0 0 0 0 rgba(47,143,130,0); }
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  display: block;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  padding: 72px 0 64px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--teal);
  font-size: .85rem;
  letter-spacing: .02em;
  margin: 0 0 14px;
}

.hero-sub {
  font-size: 1.05rem;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: .95rem;
  font-family: var(--font-body);
  border: 1px solid transparent;
  transition: transform .15s ease, background .15s ease;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--ink);
  color: #fff;
}
.btn-primary:hover { background: #233258; transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--surface); transform: translateY(-1px); }

/* --- monitor panel (signature element) --- */
.monitor-panel {
  background: var(--ink);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 18px 40px -16px rgba(22, 33, 58, .45);
}

.monitor-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #0F1729;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-coral { background: var(--coral); }
.dot-amber { background: var(--amber); }
.dot-teal  { background: var(--teal); }
.dot-live  {
  width: 7px; height: 7px; margin-right: 8px;
  background: #4ADE80;
  box-shadow: 0 0 0 0 rgba(74,222,128,.6);
  animation: pulse-live 1.8s infinite;
}
@keyframes pulse-live {
  0%   { box-shadow: 0 0 0 0 rgba(74,222,128,.5); }
  70%  { box-shadow: 0 0 0 5px rgba(74,222,128,0); }
  100% { box-shadow: 0 0 0 0 rgba(74,222,128,0); }
}

.monitor-title {
  color: #8C9AB3;
  font-size: .78rem;
  margin-left: 6px;
}

.monitor-body { padding: 18px 16px; }

.monitor-row {
  display: grid;
  grid-template-columns: 1.3fr 1fr .7fr;
  align-items: center;
  font-size: .82rem;
  color: #DCE3EA;
  padding: 9px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.monitor-row:last-of-type { border-bottom: none; }

.ep-name { color: #fff; font-weight: 500; }
.ep-status { display: flex; align-items: center; color: #4ADE80; }
.ep-latency { text-align: right; color: #8C9AB3; }

.monitor-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(255,255,255,.12);
  font-size: .75rem;
  color: #8C9AB3;
}
.monitor-footer strong { color: var(--teal); }

/* ============================================
   SECTION GENERIC
   ============================================ */
.section { padding: 80px 0; }
.section-alt { background: var(--surface); }

.section-intro { max-width: 62ch; }

/* ============================================
   TENTANG
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}

.chip-list { display: flex; flex-wrap: wrap; gap: 10px; }

.chip {
  font-family: var(--font-mono);
  font-size: .78rem;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: #1F6358;
  border: 1px solid rgba(47,143,130,.25);
}

/* ============================================
   TIMELINE
   ============================================ */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 36px;
  margin-top: 32px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.timeline-item:last-child { border-bottom: none; padding-bottom: 0; }

.timeline-date {
  color: var(--teal);
  font-size: .82rem;
  white-space: nowrap;
}

.timeline-content h3 { margin-bottom: 10px; }
.timeline-content ul { display: flex; flex-direction: column; gap: 6px; }
.timeline-content li {
  position: relative;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: .95rem;
}
.timeline-content li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--teal);
}

/* ============================================
   FLOW DIAGRAM (studi kasus)
   ============================================ */
.flow-diagram {
  display: flex;
  align-items: stretch;
  gap: 14px;
  margin: 36px 0 44px;
  flex-wrap: wrap;
}

.flow-box {
  flex: 1;
  min-width: 180px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.flow-box-mid {
  background: var(--ink);
  border-color: var(--ink);
}
.flow-box-mid .flow-label { color: var(--amber); }
.flow-box-mid .flow-desc { color: #B9C2D6; }

.flow-label { font-size: .82rem; color: var(--teal); }
.flow-desc { font-size: .85rem; color: var(--ink-soft); }

.flow-arrow {
  align-self: center;
  font-size: 1.4rem;
  color: var(--ink-soft);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.case-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}
.case-card h3 { color: var(--teal); font-size: .85rem; margin-bottom: 10px; }
.case-card p { font-size: .92rem; margin: 0; }

/* ============================================
   STACK
   ============================================ */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stack-group h3 { font-size: .82rem; color: var(--ink-soft); margin-bottom: 12px; }

/* ============================================
   PROYEK
   ============================================ */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  flex-direction: column;
}
.project-card h3 { margin-bottom: 8px; }
.project-card p { font-size: .92rem; flex: 1; }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}
.tag-list li {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--ink-soft);
  background: var(--bg);
  padding: 4px 9px;
  border-radius: 6px;
}

.project-link { font-weight: 600; font-size: .9rem; }

/* ============================================
   KONTAK
   ============================================ */
.kontak-inner { max-width: 640px; }

.contact-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 24px 0 28px;
}

.social-links { display: flex; gap: 22px; flex-wrap: wrap; }
.social-links a { font-weight: 600; }

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .85rem;
  color: var(--ink-soft);
}

/* ============================================
   SCROLL REVEAL
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s ease, transform .5s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 880px) {
  .hero-inner { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; gap: 8px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 16px 24px;
    gap: 14px;
    border-bottom: 1px solid var(--border);
    display: none;
  }
  .nav.is-open { display: flex; }
  .status-pill { display: none; }
}

@media (max-width: 600px) {
  .stack-grid { grid-template-columns: 1fr; }
  .flow-diagram { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); }
}

/* hormati preferensi reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .status-dot, .dot-live { animation: none; }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}