/* =========================================================================
   TOKENS
   Tema: "Card Catalog" — terinspirasi kartu katalog perpustakaan & ledger,
   versi lebih hidup: aksen warna lebih berani + banyak micro-interaction.
   ========================================================================= */
:root {
  --color-bg:        #12181B;
  --color-surface:   #1B2327;
  --color-surface-2: #202A2E;
  --color-ink:       #EDEAE1;
  --color-ink-muted: #9AA5A0;

  /* aksen utama tetap sage, tapi ditambah 2 aksen "pop" biar nggak flat */
  --color-accent:    #8FB39B; /* sage green */
  --color-accent-2:  #FF6B4A; /* koral hangat — CTA & hover pop */
  --color-accent-3:  #FFC857; /* kuning mustard — highlight kecil */
  --color-clay:      #C97B4A; /* rust/clay untuk nomor & aksen kecil */
  --color-line:      #2E3A3E;

  --gradient-pop: linear-gradient(135deg, var(--color-accent-2), var(--color-accent-3));

  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;

  --wrap: 1120px;
  --radius: 4px;

  --ease-snap: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  /* biar area sentuh di HP nggak nge-highlight biru default saat tap */
  -webkit-tap-highlight-color: transparent;
}

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

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

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

h1, h2, h3 { margin: 0; font-family: var(--font-display); font-weight: 600; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 28px;
}

@media (max-width: 480px) {
  .wrap { padding-inline: 18px; }
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--color-accent-2);
  text-transform: uppercase;
  margin: 0 0 12px;
}

:focus-visible {
  outline: 2px solid var(--color-accent-2);
  outline-offset: 3px;
  border-radius: 2px;
}

/* =========================================================================
   BUTTONS — lebih "hidup": naik, glow, dan tekan saat diklik/disentuh
   ========================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s var(--ease-snap),
              box-shadow 0.25s var(--ease-smooth),
              background-color 0.25s ease,
              border-color 0.25s ease,
              color 0.25s ease;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn:active {
  transform: translateY(0) scale(0.97);
  transition-duration: 0.1s;
}

.btn--accent {
  background: var(--gradient-pop);
  background-size: 180% 180%;
  background-position: 0% 50%;
  color: #14100C;
  box-shadow: 0 4px 14px rgba(255, 107, 74, 0.0);
}
.btn--accent:hover {
  background-position: 100% 50%;
  box-shadow: 0 10px 28px rgba(255, 107, 74, 0.35);
}

.btn--ghost {
  border-color: var(--color-line);
  color: var(--color-ink);
}
.btn--ghost:hover {
  border-color: var(--color-accent-2);
  color: var(--color-accent-2);
  box-shadow: 0 8px 22px rgba(255, 107, 74, 0.18);
}

/* =========================================================================
   HEADER / NAV — underline animasi + tab sentuh nyaman di HP
   ========================================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(18, 24, 27, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
  transition: border-color 0.3s ease, background-color 0.3s ease;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 18px;
}

.site-header__mark {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: color 0.25s ease;
}
.site-header__mark:hover { color: var(--color-accent-2); }

.site-nav { display: flex; gap: 20px; flex-wrap: wrap; }

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  position: relative;
  padding-block: 6px; /* area sentuh lebih nyaman di HP */
  display: inline-block;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-pop);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-smooth);
}
.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-ink);
}
.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

/* =========================================================================
   HERO — foto dengan efek "miring lembut" saat hover, index card bergerak
   ========================================================================= */
.hero { padding-block: 88px 96px; }

.hero__grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 56px;
  align-items: center;
}

.hero__name {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  line-height: 1.04;
  margin-bottom: 22px;
}

.hero__tagline {
  max-width: 46ch;
  color: var(--color-ink-muted);
  font-size: 1.08rem;
  margin-bottom: 34px;
}

.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero__figure {
  position: relative;
  perspective: 900px; /* buat efek tilt 3D terasa natural */
}

.hero__photo-frame {
  aspect-ratio: 3 / 4;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  transition: transform 0.4s var(--ease-smooth),
              border-color 0.4s ease,
              box-shadow 0.4s ease;
}
.hero__photo-frame:hover {
  transform: rotate(-1.5deg) scale(1.02);
  border-color: var(--color-accent-2);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}
.hero__photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-smooth), filter 0.6s ease;
}
.hero__photo-frame:hover img {
  transform: scale(1.06);
}

/* Placeholder rapi kalau foto belum ada / gagal dimuat */
.hero__photo-frame.is-empty::before {
  content: "Foto Profil";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-ink-muted);
  background:
    repeating-linear-gradient(135deg, var(--color-surface-2) 0 2px, var(--color-surface) 2px 14px);
}

.hero__index {
  display: block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-ink-muted);
  text-align: right;
  transition: color 0.3s ease;
}
.hero__figure:hover .hero__index { color: var(--color-accent-3); }

/* =========================================================================
   TENTANG
   ========================================================================= */
.about {
  padding-block: 72px;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface);
}

.about__grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
}

.about__bio {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  line-height: 1.5;
  max-width: 46ch;
  margin: 0 0 32px;
  color: var(--color-ink);
}

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

.skill-list li {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 8px 14px;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  color: var(--color-ink-muted);
  transition: transform 0.2s var(--ease-snap),
              color 0.2s ease,
              border-color 0.2s ease,
              background-color 0.2s ease;
}
.skill-list li:hover {
  transform: translateY(-2px) scale(1.05);
  color: var(--color-bg);
  background: var(--color-accent-3);
  border-color: var(--color-accent-3);
}

/* =========================================================================
   PORTOFOLIO — "card catalog", kartu lebih interaktif ala rak katalog
   ========================================================================= */
.portfolio { padding-block: 96px; }

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1.15;
  margin-bottom: 48px;
  max-width: 20ch;
}

.card-catalog {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.index-card {
  display: flex;
  background: var(--color-surface);
  border: 1px dashed var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.3s ease,
              transform 0.3s var(--ease-snap),
              box-shadow 0.3s var(--ease-smooth);
}

.index-card:hover,
.index-card:focus-within {
  border-color: var(--color-accent-2);
  border-style: solid;
  transform: translateY(-6px);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.35);
}

.index-card__tab {
  flex: 0 0 64px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 24px;
  background: var(--color-surface-2);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-clay);
  border-right: 1px dashed var(--color-line);
  transition: background-color 0.3s ease, color 0.3s ease;
}
.index-card:hover .index-card__tab {
  background: var(--color-accent-2);
  color: #14100C;
}

.index-card__body { padding: 24px 26px 26px; flex: 1; min-width: 0; }

/* Thumbnail: apapun ukuran/rasio foto asli yang diupload, otomatis
   dipotong rapi (crop) supaya pas mengisi kotak ini tanpa gepeng. */
.index-card__thumb {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 18px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-line);
}
.index-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.5s var(--ease-smooth);
}
.index-card:hover .index-card__thumb img {
  transform: scale(1.08);
}
.index-card__thumb.is-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    repeating-linear-gradient(135deg, var(--color-surface-2) 0 2px, var(--color-surface) 2px 14px);
}
.index-card__thumb.is-empty::before {
  content: "Screenshot Project";
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-ink-muted);
}

.index-card__meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin-bottom: 12px;
}

.index-card__title {
  font-size: 1.3rem;
  margin-bottom: 10px;
  transition: color 0.25s ease;
}
.index-card:hover .index-card__title { color: var(--color-accent-3); }

.index-card__desc {
  color: var(--color-ink-muted);
  font-size: 0.94rem;
  margin: 0 0 18px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.tag-list li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-accent);
  border: 1px solid var(--color-line);
  padding: 4px 10px;
  border-radius: 999px;
  transition: transform 0.2s var(--ease-snap),
              color 0.2s ease,
              border-color 0.2s ease;
}
.tag-list li:hover {
  transform: translateY(-2px);
  color: var(--color-accent-2);
  border-color: var(--color-accent-2);
}

.index-card__link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 2px;
  transition: color 0.25s ease, border-color 0.25s ease, padding-right 0.25s ease;
}
.index-card__link::after {
  content: " →";
  display: inline-block;
  transition: transform 0.25s var(--ease-snap);
}
.index-card__link:hover {
  color: var(--color-accent-2);
  border-color: var(--color-accent-2);
}
.index-card__link:hover::after {
  transform: translateX(4px);
}

/* =========================================================================
   FOOTER
   ========================================================================= */
.site-footer {
  padding-top: 80px;
  border-top: 1px solid var(--color-line);
  background: var(--color-surface);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
}

.site-footer__headline {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.15;
  margin-bottom: 28px;
}

.site-footer__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
  margin: 18px 0 6px;
}
.site-footer__col--meta .site-footer__label { margin-top: 0; }

.social-list { display: flex; flex-direction: column; gap: 6px; }
.social-list a {
  border-bottom: 1px solid transparent;
  color: var(--color-accent);
  display: inline-block;
  width: fit-content;
  transition: color 0.25s ease, border-color 0.25s ease, transform 0.25s var(--ease-snap);
}
.social-list a:hover {
  color: var(--color-accent-2);
  border-color: var(--color-accent-2);
  transform: translateX(6px);
}

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  padding-block: 20px;
  border-top: 1px solid var(--color-line);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-ink-muted);
  flex-wrap: wrap;
  gap: 8px;
}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__figure { max-width: 320px; }
  .about__grid { grid-template-columns: 1fr; }
  .card-catalog { grid-template-columns: 1fr; }
  .site-footer__inner { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .site-header__inner { padding-block: 14px; }
  .site-nav { gap: 14px; }
  .hero { padding-block: 48px 56px; }
  .hero__actions .btn { flex: 1 1 auto; justify-content: center; text-align: center; }
  .about, .portfolio { padding-block: 56px; }
  .index-card { flex-direction: column; }
  .index-card__tab {
    flex-direction: row;
    justify-content: flex-start;
    padding: 10px 16px;
    border-right: none;
    border-bottom: 1px dashed var(--color-line);
  }
  .index-card__body { padding: 20px 18px 22px; }
  .index-card__thumb { aspect-ratio: 16 / 9; }
  .site-footer__inner { padding-bottom: 40px; }
  .site-footer__bottom { flex-direction: column; }

  /* Di HP nggak ada hover — pastikan :active kasih feedback saat disentuh */
  .btn:active,
  .index-card:active,
  .skill-list li:active,
  .tag-list li:active {
    transform: scale(0.97);
  }
}

/* Perangkat sentuh murni: nonaktifkan hover-lift yang bisa "nyangkut" di HP,
   ganti dengan feedback saat disentuh (:active) supaya tetap terasa hidup. */
@media (hover: none) {
  .index-card:hover,
  .index-card:focus-within,
  .hero__photo-frame:hover,
  .skill-list li:hover,
  .btn:hover {
    transform: none;
    box-shadow: none;
  }
  .index-card:active { transform: scale(0.985); }
  .btn:active { transform: scale(0.95); }
}

/* =========================================================================
   PERPINDAHAN HALAMAN / SECTION — dipasangkan dengan script.js
   ========================================================================= */

/* Body fade halus saat masuk pertama kali & saat pindah halaman */
body {
  opacity: 1;
  transition: opacity 0.5s var(--ease-smooth);
}
body.is-leaving { opacity: 0; }

/* Overlay "tirai" warna — nyapu layar pakai gradient aksen yang sama
   dengan tombol, muncul sekilas saat pindah halaman. Murni dekoratif,
   dikendalikan lewat class dari script.js. */
.page-curtain {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--gradient-pop);
  transform: scaleY(0);
  transform-origin: bottom;
  pointer-events: none;
}
.page-curtain.is-covering {
  animation: curtain-cover 0.55s var(--ease-smooth) forwards;
}
.page-curtain.is-revealing {
  transform-origin: top;
  animation: curtain-reveal 0.55s var(--ease-smooth) forwards;
}
@keyframes curtain-cover {
  from { transform: scaleY(0); transform-origin: bottom; }
  to   { transform: scaleY(1); transform-origin: bottom; }
}
@keyframes curtain-reveal {
  from { transform: scaleY(1); transform-origin: top; }
  to   { transform: scaleY(0); transform-origin: top; }
}

/* Native View Transitions API (Chrome/Edge) — fallback halus kalau
   browser mendukung; kalau tidak, curtain di atas yang jalan. */
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.45s;
  animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
}
::view-transition-old(root) { animation-name: view-fade-out; }
::view-transition-new(root) { animation-name: view-fade-in; }
@keyframes view-fade-out {
  from { opacity: 1; transform: none; }
  to   { opacity: 0; transform: translateY(-12px); }
}
@keyframes view-fade-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}

/* Reveal-on-scroll — elemen dengan class .reveal muncul saat masuk
   viewport (ditoggle lewat is-visible oleh script.js). Dipakai untuk
   section, index-card, dsb, dengan efek stagger ringan. */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-smooth), transform 0.7s var(--ease-smooth);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Indikator nav yang aktif sesuai section yang sedang dilihat */
.site-nav a.is-active {
  color: var(--color-ink);
}
.site-nav a.is-active::after {
  transform: scaleX(1);
  background: var(--gradient-pop);
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
  .page-curtain { display: none; }
}