/* ===== Base (tanpa animasi) ===== */
html{ scroll-behavior:auto; }
section[id]{ scroll-margin-top:100px; }
body{ text-rendering:optimizeLegibility; }
::selection{ background:#111; color:#fff; }
::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background:#FBFBFA; }
::-webkit-scrollbar-thumb{ background:#d9d9d6; border-radius:99px; border:2px solid #FBFBFA; }

/* Grain statis */
.grain{
  position:fixed; inset:0; z-index:60; pointer-events:none; opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
main, footer{ position:relative; z-index:1; }

/* Nav links — transisi pill halus */
.nav-link{
  padding:8px 16px; border-radius:999px; color:#555;
  transition:background-color .45s ease, color .45s ease, padding .35s ease, transform .35s ease;
  white-space: nowrap;
}
.nav-link:hover{ background:rgba(0,0,0,.05); color:#111; }
.nav-link.is-active{ background:#111; color:#fff; }

/* Language Dropdown (Paling Kiri Navbar) */
#langPicker {
  position: relative;
}
#langBtn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #111;
  background: transparent;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.2s ease;
}
#langBtn:hover {
  background: rgba(0, 0, 0, 0.06);
}
#langBtn[aria-expanded="true"] {
  background: rgba(0, 0, 0, 0.08);
}
#langBtn[aria-expanded="true"] svg {
  transform: rotate(180deg);
}
#langBtn svg {
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  left: auto;
  min-width: 120px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  padding: 5px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12), 0 2px 6px rgba(0, 0, 0, 0.04);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.95);
  transform-origin: top right;
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.25s;
  z-index: 120;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.lang-dropdown-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.lang-option {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 8px 14px;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 500;
  color: #333;
  cursor: pointer;
  border: none;
  background: transparent;
  text-align: left;
  transition: background-color 0.18s ease, color 0.18s ease;
}
.lang-option:hover {
  background: rgba(0, 0, 0, 0.05);
  color: #111;
}
.lang-option.is-active {
  background: #111;
  color: #fff;
  font-weight: 600;
}

/* Island button */
.btn-island{
  display:inline-flex; align-items:center; gap:10px;
  background:#111; color:#fff; font-size:14px; font-weight:600;
  padding:6px 6px 6px 18px; border-radius:999px;
}
.btn-island:hover{ background:#333; }
.btn-icon{
  width:32px; height:32px; border-radius:99px; display:grid; place-items:center;
  background:rgba(255,255,255,.12);
}

/* Primary button (button-in-button) */
.btn-primary{
  display:inline-flex; align-items:center; gap:12px;
  background:#111; color:#fff; font-weight:600; font-size:15px;
  padding:8px 8px 8px 26px; border-radius:999px;
}
.btn-primary:hover{ background:#2b2b2b; }
.btn-icon-dark{
  width:38px; height:38px; border-radius:99px; display:grid; place-items:center;
  background:rgba(255,255,255,.14);
}

.link-underline:hover{ text-decoration:underline; text-underline-offset:4px; }

/* Double-bezel */
.bezel{
  background:rgba(0,0,0,.04); border:1px solid rgba(0,0,0,.06);
  padding:8px; border-radius:2rem;
}
.bezel-core{
  background:#fff; border-radius:calc(2rem - 0.5rem); overflow:hidden;
}

/* Tags */
.tag{
  font-size:11px; font-weight:600; letter-spacing:.06em; text-transform:uppercase;
  padding:5px 12px; border-radius:999px;
}
.tag-green{ background:#EDF3EC; color:#346538; }
.tag-blue{ background:#E1F3FE; color:#1F6C9F; }
.tag-yellow{ background:#FBF3DB; color:#956400; }
.tag-red{ background:#FDEBEC; color:#9F2F2D; }

/* Stats */
.stat-num{ font-size:26px; font-weight:700; letter-spacing:-.02em; }
.stat-label{ font-size:12px; color:#787774; font-family:"Ubuntu Mono",monospace; text-transform:uppercase; letter-spacing:.08em; }

/* Reveal dinonaktifkan — semua konten langsung tampil */
.reveal{ opacity:1; }

/* Tech stack tiles */
.stack-tile{
  background:#fff; border:1px solid #EAEAEA; border-radius:10px;
  padding:12px 2px 10px; display:flex; flex-direction:column; align-items:center; gap:6px;
  cursor: pointer;
  transition: border-color 0.25s ease, box-shadow 0.28s ease, transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}
.stack-tile:hover{
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}
.stack-tile img{
  width:26px; height:26px; object-fit:contain; display:block;
  transform: scale(1) translateZ(0);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), filter 0.3s ease;
  will-change: transform;
  backface-visibility: hidden;
}
.stack-tile:hover img{
  transform: scale(1.14) translateY(-2px) translateZ(0);
  filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.08));
}
.stack-tile:active img{
  transform: scale(1.04) translateY(0);
}
.stack-tile span{
  font-family:"Ubuntu Mono",monospace; font-size:10px; letter-spacing:.04em; color:#787774; text-transform:uppercase;
  transition: color 0.25s ease;
}
.stack-tile:hover span{
  color: #111;
}

/* Khusus Tech Stack di Project Section (Hanya icon yang membesar, card dan teks tetap diam) */
#projectTechStack .stack-tile {
  transition: none;
  cursor: default;
}
#projectTechStack .stack-tile:hover {
  border-color: #EAEAEA;
  box-shadow: none;
  transform: none;
}
#projectTechStack .stack-tile span {
  transition: none;
}
#projectTechStack .stack-tile:hover span {
  color: #787774;
}
#projectTechStack .stack-tile img {
  cursor: pointer;
  transform: scale(1) translateZ(0);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), filter 0.3s ease;
  will-change: transform;
  backface-visibility: hidden;
}
#projectTechStack .stack-tile:hover img,
#projectTechStack .stack-tile img:hover {
  transform: scale(1.18) translateZ(0);
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.08));
}
#projectTechStack .stack-tile:active img {
  transform: scale(1.06) translateZ(0);
}

/* Tech stack marquee — 1 baris auto-slide ke kiri, loop mulus */
.stack-marquee{
  overflow:hidden;
  -webkit-mask-image:linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
  mask-image:linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
}
.stack-track{ display:flex; gap:12px; width:max-content; }
.stack-track .stack-tile{ flex:0 0 auto; width:7rem; }
.stack-track.animate{ animation:stack-slide 45s linear infinite; }
.stack-marquee:hover .stack-track.animate{ animation-play-state:paused; }
@keyframes stack-slide{ to{ transform:translateX(calc(-50% - 6px)); } }

/* Project memakai utility Tailwind langsung di HTML */

/* Expand / Collapse Project dengan efek Peek, Transparan & Blur */
.project-expand-wrap {
  position: relative;
  overflow: hidden;
  max-height: 120px;
  opacity: 0.35;
  filter: blur(4px);
  -webkit-filter: blur(4px);
  pointer-events: none;
  user-select: none;
  will-change: max-height, opacity, filter;
  transition: max-height 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-expand-wrap.is-expanded {
  opacity: 1;
  filter: blur(0);
  -webkit-filter: blur(0);
  pointer-events: auto;
  user-select: auto;
}

.project-expand-inner {
  min-height: 0;
}

/* Container Tombol Toggle: Menimpa / Overlay di atas kartu transparan */
#projectToggleWrap {
  position: relative;
  z-index: 20;
  margin-top: -52px;
  text-align: center;
  transition: margin-top 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Saat terbuka (expanded), tombol Tutup berada di bawah kartu dengan jarak normal */
.project-expand-wrap.is-expanded + #projectToggleWrap,
#projectToggleWrap.is-expanded {
  margin-top: 2.5rem;
}

/* Tombol Toggle Project: "Lainnya" & "Tutup" (tanpa icon/arrow) */
.btn-project-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #111;
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  padding: 10px 38px;
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: background-color 0.25s ease, transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease;
}

.btn-project-toggle:hover {
  background: #2b2b2b;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.btn-project-toggle:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* Animasi Zoom Halus pada Gambar Project */
.project-img-wrap {
  overflow: hidden;
}
.project-img {
  transform: scale(1) translateZ(0);
  transition: transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
  backface-visibility: hidden;
}
.project-img-wrap:hover .project-img,
.project-card:hover .project-img {
  transform: scale(1.045) translateZ(0);
}

/* Ikon tech polos di bawah deskripsi project */
.proj-icons { display: flex; align-items: center; gap: 10px; margin-top: 12px; }
.proj-icons img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  display: block;
  cursor: pointer;
  transform: scale(1) translateZ(0);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), filter 0.28s ease;
  will-change: transform;
}
.proj-icons img:hover {
  transform: scale(1.14) translateY(-1.5px) translateZ(0);
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.1));
}
.proj-icons img:active {
  transform: scale(1.05) translateY(0);
}

/* Form */
.field{ display:block; }
.field span{ display:block; font-size:12px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; color:#787774; margin-bottom:6px; font-family:"Ubuntu Mono",monospace; }
.field input, .field textarea{
  width:100%; background:#FBFBFA; border:1px solid #EAEAEA; border-radius:10px;
  padding:12px 14px; font-size:15px; outline:none; resize:vertical;
}
.field input:focus, .field textarea:focus{ border-color:#111; background:#fff; }

/* Ikon kontak (GitHub / Email / Instagram) */
.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  border: 1px solid #EAEAEA;
  background: #fff;
  color: #111;
  transform: scale(1) translateZ(0);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              background-color 0.25s ease,
              color 0.25s ease,
              border-color 0.25s ease,
              box-shadow 0.3s ease;
  will-change: transform;
}
.contact-icon:hover {
  background: #111;
  color: #fff;
  border-color: #111;
  transform: scale(1.12) translateY(-2px) translateZ(0);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}
.contact-icon:active {
  transform: scale(0.97) translateY(0);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}
.contact-icon svg { width: 20px; height: 20px; display: block; }

/* Social */
.soc{
  width:36px; height:36px; border-radius:99px; display:grid; place-items:center;
  border:1px solid #EAEAEA; font-size:11px; font-weight:700; font-family:"Ubuntu Mono",monospace;
  color:#555;
}
.soc:hover{ background:#111; color:#fff; border-color:#111; }

/* Burger */
.burger{ display:grid; gap:5px; width:18px; }
.burger i{ display:block; height:2px; background:#111; border-radius:99px; }
#menuBtn.open .burger i:first-child{ transform:translateY(3.5px) rotate(45deg); }
#menuBtn.open .burger i:last-child{ transform:translateY(-3.5px) rotate(-45deg); }

/* Mobile menu (tampil/sembunyi langsung) */
#mobileMenu{ opacity:0; pointer-events:none; }
#mobileMenu.show{ opacity:1; pointer-events:auto; }
.mobile-link{
  font-size:clamp(2rem,9vw,3rem); font-weight:600; letter-spacing:-.03em; line-height:1.15;
}
.mobile-link:hover{ color:#787774; }

/* Tombol kembali ke atas (floating kanan bawah) */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 70;
  width: 46px;
  height: 46px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  color: #111;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  cursor: pointer;
  opacity: 0;
  transform: translateY(16px) scale(0.9);
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              background-color 0.25s ease,
              color 0.25s ease,
              border-color 0.25s ease,
              box-shadow 0.25s ease;
}
.to-top.show {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.to-top:hover {
  background: #111;
  color: #fff;
  border-color: #111;
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
}
.to-top:active {
  transform: translateY(0) scale(0.96);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Navbar auto-hide — transisi smooth */
#siteHeader{ transition:transform .6s cubic-bezier(0.32,0.72,0,1), opacity .6s cubic-bezier(0.32,0.72,0,1); }
#siteHeader.nav-hidden{ transform:translateY(-130%); opacity:0; pointer-events:none; }

/* Typewriter Cursor & Animation */
.typing-text {
  display: inline;
}
.typing-cursor {
  display: inline-block;
  margin-left: 2px;
  font-style: normal;
  font-weight: 300;
  color: #111;
  animation: blink-cursor 0.9s infinite;
  user-select: none;
}
@keyframes blink-cursor {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

/* ===== Fluid Size & Dimension Morphing saat Pergantian Bahasa (Solid 100%, Tanpa Efek Transparan) ===== */
#islandNav {
  will-change: width;
  transition: width 0.42s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

.btn-primary, .btn-project-toggle {
  transition: background-color 0.25s ease, transform 0.25s ease, width 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding 0.35s ease, box-shadow 0.25s ease;
  white-space: nowrap;
}

.project-card {
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===== Project Category Filter Tabs ===== */
.filter-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px 6px 16px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 9999px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #fbfbfa;
  color: #666;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  user-select: none;
}

.filter-tab:hover {
  color: #111;
  border-color: rgba(0, 0, 0, 0.2);
  background: #f4f4f4;
  transform: translateY(-1px);
}

.filter-tab.is-active {
  background: #111;
  color: #fff;
  border-color: #111;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.14);
  transform: translateY(0);
}

.filter-tab:active {
  transform: scale(0.96);
}

.filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 18px;
  padding: 0 5px;
  font-size: 11px;
  font-weight: 600;
  font-family: "Ubuntu Mono", monospace;
  line-height: 1;
  border-radius: 9999px;
  background: rgba(0, 0, 0, 0.06);
  color: #71717a;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.filter-tab:hover .filter-count {
  background: rgba(0, 0, 0, 0.1);
  color: #111;
}

.filter-tab.is-active .filter-count {
  background: rgba(255, 255, 255, 0.22);
  color: #ffffff;
}

/* Transisi Smooth Pergantian Tab Filter */
#projectGrid, #projectGridExtra {
  transition: opacity 0.16s cubic-bezier(0.4, 0, 1, 1), transform 0.16s cubic-bezier(0.4, 0, 1, 1);
  will-change: opacity, transform;
}

#projectGrid.grid-filter-leave, #projectGridExtra.grid-filter-leave {
  opacity: 0;
  transform: translateY(8px) scale(0.99);
}

/* Animasi Muncul Card yang Halus & Staggered */
@keyframes projectCardIn {
  0% {
    opacity: 0;
    transform: translateY(22px) scale(0.965);
  }
  65% {
    opacity: 0.95;
    transform: translateY(-2px) scale(1.006);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.project-card.filter-enter {
  animation: projectCardIn 0.44s cubic-bezier(0.16, 1, 0.3, 1) both;
  will-change: transform, opacity;
}