/* =========================================================
   DESIGN TOKENS
   Semua warna, font, dan ukuran dasar didefinisikan di sini
   supaya mudah diubah tanpa harus mencari-cari di banyak tempat.
   ========================================================= */
:root {
  /* Warna */
  --color-bg: #F7F7FB;
  --color-surface: #FFFFFF;
  --color-ink: #14151A;
  --color-ink-soft: #55565F;
  --color-ink-faint: #8A8B94;
  --color-border: #E5E5EC;

  --color-accent: #4F46E5;        /* indigo - warna aksen utama */
  --color-accent-dark: #4338CA;
  --color-accent-soft: #EEF0FF;   /* latar lembut untuk badge/hover */
  --color-accent-2: #0EA5A4;      /* teal - aksen sekunder (tag, dot) */
  --color-warn: #F59E0B;          /* amber - dipakai sangat terbatas */

  /* Tipografi */
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Lainnya */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 20px rgba(20, 21, 26, 0.06);
  --shadow-card-hover: 0 12px 30px rgba(20, 21, 26, 0.1);
  --transition: 0.25s ease;
  --header-height: 76px;
}

/* =========================================================
   RESET DASAR
   ========================================================= */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }

/* Hormati preferensi pengguna yang mematikan animasi */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* Fokus keyboard tetap terlihat jelas (aksesibilitas) */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* =========================================================
   UTILITAS UMUM
   ========================================================= */
.container {
  max-width: 1200px;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.02em;
  margin-bottom: 0.75rem;
}

.section { padding: 6rem 0; }
.section-alt { background: var(--color-surface); }

.section-heading { max-width: 640px; margin-bottom: 3rem; }

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin: 0 0 1rem;
}

.section-text {
  color: var(--color-ink-soft);
  font-size: 1.02rem;
}

.tok-mono {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent-2);
}

/* Tombol */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 6px 18px rgba(79, 70, 229, 0.28);
}
.btn-primary:hover { background: var(--color-accent-dark); transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-2px); }

.hero-actions, .resume-download { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; }

/* Elemen yang akan di-reveal saat masuk viewport (lihat script.js) */
.ftco-animate {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.ftco-animate.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   NAVBAR
   ========================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  z-index: 1000;
  background: rgba(247, 247, 251, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}
.site-header.scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(247, 247, 251, 0.97);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
}
.nav-logo-mark {
  font-family: var(--font-mono);
  color: var(--color-accent);
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  position: relative;
  padding: 0.35rem 0;
  transition: color var(--transition);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.nav-link:hover,
.nav-link.active { color: var(--color-ink); }
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 0.5rem;
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--color-ink);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   HERO SECTION
   ========================================================= */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--header-height);
  position: relative;
  background-image:
    radial-gradient(circle at 85% 15%, rgba(79, 70, 229, 0.08), transparent 45%),
    radial-gradient(circle at 10% 85%, rgba(14, 165, 164, 0.08), transparent 45%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  margin: 0 0 0.5rem;
  line-height: 1.1;
}

.hero-subtitle {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--color-ink-soft);
  margin: 0 0 1.25rem;
}

.typed-role {
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-weight: 600;
}
.typed-cursor, .typed-cursor-editor {
  color: var(--color-accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  max-width: 480px;
  color: var(--color-ink-soft);
  margin-bottom: 0.5rem;
}

/* Kartu "editor" — pengganti foto besar di Hero */
.editor-card {
  background: #1E1F29;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card-hover);
  font-family: var(--font-mono);
}

.editor-titlebar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.85rem 1rem;
  background: #16171F;
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background: #FF5F57; }
.dot-yellow { background: #FEBC2E; }
.dot-green { background: #28C840; }
.editor-filename {
  margin-left: 0.75rem;
  font-size: 0.78rem;
  color: #8A8B9C;
}

.editor-body {
  margin: 0;
  padding: 1.5rem 1.25rem;
  color: #E4E4F0;
  font-size: 0.88rem;
  line-height: 1.9;
  white-space: pre-wrap;
  word-break: break-word;
}
.tok-key { color: #C792EA; }
.tok-var { color: #82AAFF; }
.tok-str { color: #C3E88D; }
.tok-bool { color: #F78C6C; }

.scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-ink-faint);
}
.scroll-cue-line {
  width: 1px; height: 32px;
  background: var(--color-ink-faint);
  animation: scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  50.1% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* =========================================================
   ABOUT SECTION
   ========================================================= */
.about-visual {
  position: relative;
  aspect-ratio: 4 / 3.4;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-shape {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, var(--color-accent) 0%, var(--color-accent-2) 100%);
  opacity: 0.9;
}

.about-shape {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-shape::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.06) 0 2px, transparent 2px 14px);
  border-radius: inherit;
}

.about-badge {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-size: 0.88rem;
  transform: translate(4rem, 5.5rem);
}

.about-facts {
  margin-top: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.about-facts li {
  display: flex;
  gap: 0.75rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}
.about-facts li span:first-child { min-width: 110px; }

/* =========================================================
   SKILLS SECTION
   ========================================================= */
.skill-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  height: 100%;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.section-alt .skill-item { background: var(--color-bg); }
.skill-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: var(--color-accent);
}

.skill-name { font-weight: 600; font-size: 0.92rem; }

/* Indikator level dengan titik, pengganti progress bar */
.skill-level { display: flex; gap: 4px; }
.skill-level i {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-border);
  display: block;
}
.skill-level[data-level="1"] i:nth-child(1),
.skill-level[data-level="2"] i:nth-child(-n+2),
.skill-level[data-level="3"] i:nth-child(-n+3),
.skill-level[data-level="4"] i:nth-child(-n+4) {
  background: var(--color-accent-2);
}

/* =========================================================
   PROJECTS SECTION
   ========================================================= */
.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.project-thumb {
  aspect-ratio: 16 / 10;
  background: linear-gradient(155deg, var(--color-accent-soft), #FFFFFF);
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-thumb-icon {
  font-family: var(--font-mono);
  font-size: 2rem;
  color: var(--color-accent);
  opacity: 0.5;
}
.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-body { padding: 1.5rem; display: flex; flex-direction: column; gap: 0.75rem; flex-grow: 1; }
.project-title { font-family: var(--font-display); font-size: 1.15rem; margin: 0; }
.project-desc { color: var(--color-ink-soft); font-size: 0.92rem; flex-grow: 1; }

.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
}

.project-links { display: flex; gap: 0.6rem; margin-top: 0.25rem; }
.btn-icon {
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition), color var(--transition);
}
.btn-icon:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-icon-primary { background: var(--color-ink); color: #fff; border-color: var(--color-ink); }
.btn-icon-primary:hover { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }

/* =========================================================
   RESUME SECTION (changelog style)
   ========================================================= */
.resume-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: start;
}

.resume-tabs {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
}

.tab-btn {
  text-align: left;
  background: transparent;
  border: none;
  border-left: 2px solid var(--color-border);
  padding: 0.6rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-ink-faint);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.tab-btn:hover { color: var(--color-ink); }
.tab-btn.active {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.timeline { position: relative; padding-left: 1.5rem; }
.timeline.hidden { display: none; }
.timeline::before {
  content: "";
  position: absolute;
  left: 4px; top: 6px; bottom: 6px;
  width: 1px;
  background: var(--color-border);
}

.timeline-item { position: relative; padding-bottom: 2rem; }
.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -1.5rem;
  top: 6px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--color-accent-2);
  box-shadow: 0 0 0 4px var(--color-bg);
}
.section-alt .timeline-dot { box-shadow: 0 0 0 4px var(--color-surface); }

.timeline-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.4rem;
}
.section-alt .timeline-card { background: var(--color-bg); }

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
}
.timeline-card h3 { font-family: var(--font-display); font-size: 1.05rem; margin: 0.35rem 0 0.15rem; }
.timeline-org { display: block; font-size: 0.85rem; color: var(--color-ink-faint); margin-bottom: 0.6rem; }
.timeline-card p { margin: 0; color: var(--color-ink-soft); font-size: 0.92rem; }

/* =========================================================
   CONTACT SECTION
   ========================================================= */
/* Wrapper konten Contact — menggantikan layout 2 kolom (info + form)
   setelah contact form dihapus, supaya tidak ada ruang kosong di kanan */
.contact-wrap { max-width: 640px; }

.contact-list { margin-top: 1.75rem; display: flex; flex-direction: column; gap: 1rem; }
.contact-list li { display: flex; gap: 1rem; align-items: baseline; font-size: 0.95rem; }
.contact-list li span:first-child { min-width: 70px; }
.contact-list a { border-bottom: 1px solid transparent; transition: border-color var(--transition), color var(--transition); }
.contact-list a:hover { color: var(--color-accent); border-color: var(--color-accent); }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer { padding: 2.5rem 0 4rem 0; border-top: 1px solid var(--color-border); }
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-ink-faint);
}
.footer-links { display: flex; gap: 1.25rem; }
.footer-links a:hover { color: var(--color-accent); }

/* Tombol back-to-top */
.back-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--color-ink);
  color: #fff;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
  z-index: 900;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--color-accent); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 991px) {
  .hero-grid { grid-template-columns: 1fr; text-align: left; }
  .hero-visual { order: -1; }
  .resume-layout { grid-template-columns: 1fr; }
  .resume-tabs {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .tab-btn { border-left: none; border-bottom: 2px solid var(--color-border); }
  .tab-btn.active { border-bottom-color: var(--color-accent); }
}

@media (max-width: 768px) {
  .section { padding: 4.5rem 0; }

  .container { padding-left: 1.25rem; padding-right: 1.25rem; }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  }
  .nav-menu.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-menu li { width: 100%; }
  .nav-link { display: block; padding: 0.9rem 1.5rem; }
  .nav-link::after { display: none; }

  .nav-toggle { display: flex; }

  .about-badge { transform: translate(4rem, 4rem); }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .container { padding-left: 1rem; padding-right: 1rem; }
}