/* ================= TOKENS ================= */
:root {
  --bg: #0a0a0a;
  --surface: #131311;
  --border: #262622;
  --text: #f2f2f0;
  --text-muted: #9a9a94;
  --text-faint: #55534d;
  --accent: #d97757;

  --font-display: 'Fraunces', serif;
  --font-body: 'Source Serif 4', serif;
  --font-mono: 'JetBrains Mono', monospace;

  --max-width: 760px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.section__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.75rem;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.section__num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-faint);
}

/* ================= LANDING (pinned quote) ================= */
/* Landing sengaja pakai palet terbalik (putih) — beda dari tema gelap
   section lainnya, biar jadi kontras/statement di awal halaman. */
.landing {
  position: relative;
  height: 120vh; /* ruang scroll ekstra supaya quote sempat "diam" sebelum Intro menutup */
}

.landing__inner {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 1.5rem;
  transition: opacity 0.15s linear;
  color: #0a0a0a;
  background: var(--accent);
  pointer-events: auto;
}

.landing__inner.is-inactive {
    pointer-events: none;
}

.landing__quote {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.5rem, 4.5vw, 2.75rem);
  line-height: 1.35;
  max-width: 780px;
  color: #0a0a0a;
}

.landing__quote-line {
  display: block;
  will-change: transform;
}

.landing__attribution {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--bg);
  margin-top: 1.5rem;
}

.landing__scroll-hint {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--bg);
  text-align: center;
  margin-top: 3rem;
}

/* ================= INTRO (nama & role) ================= */
.intro {
  position: relative;
  z-index: 2;
  background: var(--bg);
  min-height: 120vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  padding: 6rem 0 6rem clamp(3rem, 10vw, 12rem);
  max-width: none;
  margin: 0 auto;
  flex-wrap: wrap;
}

.intro__text { flex: 1; min-width: 260px; }

.intro__name {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.05;
  margin-bottom: 1.25rem;
}

.intro__role {
  position: relative;
  height: 2rem;
  overflow: hidden;
}

.intro__role-current {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--accent);
  cursor: pointer;
}

.intro__role-current.is-animating {
  animation: role-fade-slide 0.2s ease;
}

@keyframes role-fade-slide {
  0%   { opacity: 0; transform: translateY(12px); }
  100% { opacity: 1; transform: translateY(0); }
}

.intro__ascii-space {
  position: relative;
  align-self: stretch;
  flex: 1 1 62%;
  min-width: 360px;
  min-height: 100vh;
  overflow: hidden;
}

.intro__ascii-art {
  position: absolute;
  top: 50%;
  /* Figur sengaja keluar sedikit dari viewport: yang terpotong hanya sisi kanan. */
  right: -3rem;
  margin: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0;
  white-space: pre;
  transform: translateY(-50%) scale(var(--ascii-scale, 1));
  transform-origin: right center;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.intro__ascii-space.is-loaded .intro__ascii-art {
  opacity: 1;
}

/* ================= SECTION NAV ================= */
.section-nav {
  position: fixed;
  top: 1.5rem;
  right: 2rem;
  z-index: 99;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.75rem);
  padding: 0.65rem 0.85rem;
  border-radius: 999px;
  background: var(--bg);
  backdrop-filter: blur(10px);
  overflow: visible;
  visibility: hidden;
  opacity: 0;
  transform: translateY(-12px);
  transition: opacity 0.45s ease, transform 0.45s ease, visibility 0s linear 0.45s;
  background: transparent;
    border: none;
    box-shadow: none;
    backdrop-filter: none;
}


.section-nav.is-visible {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0s;
}

.section-nav a {
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s ease;
}

.section-nav a:hover,
.section-nav a:focus-visible { color: var(--accent); }

.section-nav a:not(.section-nav__inquire)::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 0;
  width: 2.45rem;
  height: 2.45rem;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0.35);
  transition: transform 0.3s cubic-bezier(.2, .8, .2, 1), opacity 0.2s ease;
}

.section-nav a > span {
  position: relative;
  z-index: 1;
}

.section-nav a:not(.section-nav__inquire):hover,
.section-nav a:not(.section-nav__inquire):focus-visible { color: var(--bg); }

.section-nav a:not(.section-nav__inquire):hover::before,
.section-nav a:not(.section-nav__inquire):focus-visible::before {
  opacity: 1;
  transform: translate(-50%, -50%) scale(2);
}

.section-nav__inquire {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.75rem;
  border-radius: 999px;
  background: var(--text);
  color: var(--bg) !important;
}

.section-nav__inquire:hover,
.section-nav__inquire:focus-visible {
  background: var(--accent);
  color: var(--bg) !important;
}

/* Navbar memakai kontras gelap ketika panel berlatar oranye aktif. */
.section-nav.is-on-accent a { color: var(--bg); }

.section-nav.is-on-accent a:not(.section-nav__inquire)::before {
  background: var(--bg);
}

.section-nav.is-on-accent a:not(.section-nav__inquire):hover,
.section-nav.is-on-accent a:not(.section-nav__inquire):focus-visible {
  color: var(--accent);
}

.section-nav.is-on-accent .section-nav__inquire {
  background: var(--bg);
  color: var(--accent) !important;
}

.section-nav.is-on-accent .section-nav__inquire:hover,
.section-nav.is-on-accent .section-nav__inquire:focus-visible {
  background: var(--text);
  color: var(--bg) !important;
}

/* ================= HORIZONTAL CONTENT ================= */
/* Scroll vertikal dipakai sebagai "progress" untuk menggeser panel ke kanan. */
.horizontal-scroll {
  position: relative;
}

.horizontal-track {
  position: sticky;
  top: 0;
  display: flex;
  width: max-content;
  height: 100vh;
  overflow: hidden;
  will-change: transform;
}

.horizontal-track .horizontal-panel {
  flex: 0 0 100vw;
  width: 100vw;
  max-width: none;
  height: 120vh;
  min-height: 120vh;
  margin: 0;
  padding: 6rem max(1.5rem, calc((100vw - var(--max-width)) / 2));
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow-y: auto;
}

.horizontal-panel .skills__list,
.horizontal-panel .project-stage,
.horizontal-panel .contact__text,
.horizontal-panel .contact__links {
  max-width: var(--max-width);
}

/* Skills dan Contact menjadi panel aksen; konten kartu tetap gelap dan terbaca. */
#skills.horizontal-panel,
#contact.horizontal-panel {
  background: var(--accent);
  color: var(--bg);
}

#skills.horizontal-panel .section__num,
#contact.horizontal-panel .section__num {
  color: color-mix(in srgb, var(--bg) 55%, transparent);
}

#skills.horizontal-panel .skill-card {
  color: var(--text);
}

#contact.horizontal-panel .contact__links a:hover {
  border-color: var(--bg);
  color: var(--bg);
}

/* ================= SKILLS ================= */
.skills {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 1.5rem;
}

.skills__list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.5rem;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.skill-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.skill-card__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  margin-bottom: 0.35rem;
}

.skill-card__count {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.skill-card__tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  padding: 0.2rem 0.55rem;
  border-radius: 3px;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.tag--done { color: var(--accent); border-color: var(--accent); }
.tag--progress { color: var(--text-muted); }
.tag--planned { color: var(--text-faint); }

/* ================= PROJECTS ================= */
.projects {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 1.5rem;
}

.project-stage {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
}

.project-list {
  flex: 1;
}

.project-stage.is-expanded .project-list {
  align-items: flex-start;
  max-width: 330px;
}

.project-card {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.5rem;
  cursor: pointer;
  transition: border-color 0.2s ease, opacity 0.3s ease, transform 0.3s ease;
}

.project-card:hover { border-color: var(--text-faint); }

.project-card.is-hidden {
  display: none;
}

.project-card__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.15rem;
  margin: 0.6rem 0 0.4rem;
}

.project-card__desc {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.project-stage.is-expanded {
  justify-content: flex-start;
  gap: 2rem;
  align-items: flex-start;
}

.project-detail {
    flex: 0 0 520px;
    position: sticky;
    top: 120px;
}

.project-detail__content {
    width: min(650px, 42vw);

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;

    padding: 2.5rem;

    transform: translateX(60px);
    transition: transform .35s ease;
}

.project-detail.is-visible .project-detail__content {
    transform: translateX(0);
}

.project-detail__content h3 {
    font-size: clamp(2rem, 3vw, 3rem);
    margin-bottom: 1rem;
}

.project-detail__content p {
    line-height: 1.8;
}

.tag {
    display: inline-block;
    margin-bottom: 1rem;
}

.project-detail .tag { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }

.project-detail__hint {
  margin-top: 2.5rem !important;
  font-family: var(--font-mono);
  font-size: 0.72rem !important;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ================= CONTACT ================= */
.contact {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 1.5rem;
}

.contact__text {
  color: var(--bg);
  margin-bottom: 1.5rem;
  padding-left: 20%;
}

.contact__links {
  padding-left: 35%;
  display: flex;
  gap: 1.5rem;
}

.contact__links a {
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding-bottom: 2px;
  color: var(--text);
  border-bottom: 1px solid var(--text);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.contact__links a:hover { border-color: var(--accent); color: var(--accent); }

.contact__links a::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 0;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0.35);
  transition: transform 0.3s cubic-bezier(.2, .8, .2, 1), opacity 0.2s ease;
}

.contact__links a > span {
  position: relative;
  z-index: 1;
}



/* ================= FOOTER ================= */
.footer {
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* ================= RESPONSIVE ================= */
@media (max-width: 720px) {
  .landing {
    height: 100vh;
  }

  .landing__inner {
    padding: 1.25rem;
  }

  .landing__quote {
    font-size: clamp(1.4rem, 8vw, 2rem);
    max-width: 92vw;
  }

  .landing__attribution {
    margin-top: 1rem;
  }

  .horizontal-scroll { height: auto !important; }
  .intro {
    padding: 5rem 1.25rem 3rem;
    gap: 1.5rem;
  }
  .horizontal-track {
    position: static;
    display: block;
    width: auto;
    height: auto;
    overflow: visible;
    transform: none !important;
  }
  .horizontal-track .horizontal-panel {
    display: block;
    width: auto;
    height: auto;
    min-height: 0;
    padding: 4.5rem 1.25rem;
    overflow: visible;
  }
  .intro {
    flex-direction: column-reverse;
    text-align: center;
    padding: 5rem 1.25rem;
  }
  .intro__text {
    width: 100%;
  }
  .intro__name {
    font-size: clamp(2rem, 10vw, 3rem);
  }
  .intro__role {
    display: flex;
    justify-content: center;
  }
  .intro__ascii-space { display: none; }
  .section-nav {
    top: 1rem;
    right: 1rem;
    left: 1rem;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.5rem;
  }
  .section-nav a { font-size: 0.62rem; }
  .section-nav__inquire { padding: 0.45rem 0.55rem; }
  .section-nav a:not(.section-nav__inquire)::before { width: 2rem; height: 2rem; }

  .skills,
  .projects,
  .contact {
    padding: 4.5rem 1.25rem;
  }

  .project-stage {
    display: block;
  }

  .project-stage.is-expanded {
    flex-direction: column;
  }
  .project-stage.is-expanded .project-list {
    max-width: 100%;
    align-items: center;
  }

  .project-detail {
    position: static;
    width: 100%;
    flex-basis: auto;
  }

  .project-detail__content {
    width: 100%;
    padding: 1.5rem;
    transform: none;
  }

  .contact__text,
  .contact__links {
    padding-left: 0;
  }

  .contact__links {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}

/* ================= ACCESSIBILITY ================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

a:focus-visible,
.project-card:focus-visible,
.intro__role-current:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}