/* ============================================
   0xKAF — Portfolio V3 Stylesheet
   Theme   : Japanese Minimalist / Wabi-Sabi
   Author  : Kasirun Sitorus
   GitHub  : github.com/AdanaTatuyaHatsumi
   ============================================ */

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

:root {
  --bg:       #faf9f7;
  --surface:  #f2f0ec;
  --ink:      #1c1917;
  --ink2:     #44403c;
  --muted:    #a8a29e;
  --border:   #e7e5e4;
  --accent:   #c2410c;        /* Terra cotta / burnt orange */
  --accent2:  #78716c;
  --serif:    'Noto Serif JP', 'Shippori Mincho', serif;
  --mono:     'JetBrains Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}

/* ── CURSOR ── */
.cursor-dot {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform .15s ease, width .2s, height .2s, background .2s;
  mix-blend-mode: multiply;
}
.cursor-dot.hover {
  width: 32px; height: 32px;
  background: transparent;
  border: 1px solid var(--accent);
}

/* ── SIDE RAILS ── */
.rail {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  writing-mode: vertical-rl;
  font-size: 10px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--muted);
}
.rail-left { left: 1.5rem; }
.rail-right { right: 1.5rem; transform: translateY(-50%) rotate(180deg); }
.rail-text { white-space: nowrap; }

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 4rem;
  background: rgba(250, 249, 247, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  display: flex;
  flex-direction: column;
  gap: .1rem;
  text-decoration: none;
  color: var(--ink);
}
.logo-jp {
  font-family: var(--serif);
  font-size: .75rem;
  color: var(--muted);
  letter-spacing: .1em;
}
.logo-en {
  font-family: var(--mono);
  font-size: .9rem;
  font-weight: 500;
  letter-spacing: .08em;
}

.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  display: flex;
  align-items: center;
  gap: .4rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: color .2s;
}
.nav-links a span {
  font-size: 9px;
  color: var(--accent);
  opacity: .6;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover span { opacity: 1; }

/* ── HERO ── */
#hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 420px;
  align-items: center;
  padding: 8rem 4rem 4rem;
  position: relative;
  overflow: hidden;
  gap: 4rem;
}

.hero-inner { position: relative; z-index: 2; }

.hero-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 11px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2.5rem;
}
.meta-line {
  display: block;
  width: 32px; height: 1px;
  background: var(--accent);
}
.meta-dot { color: var(--border); }

.hero-name {
  margin-bottom: 2rem;
}
.name-jp {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 200;
  letter-spacing: .2em;
  color: var(--muted);
  margin-bottom: .5rem;
}
.name-en {
  display: block;
  font-family: var(--serif);
  font-size: clamp(3.5rem, 7vw, 6rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--ink);
}
.name-en em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: 13px;
  color: var(--ink2);
  line-height: 1.9;
  max-width: 480px;
  margin-bottom: 3rem;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.cta-primary {
  display: inline-block;
  padding: .75rem 2rem;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background .2s;
}
.cta-primary:hover { background: var(--accent); }
.cta-ghost {
  font-size: 12px;
  color: var(--ink2);
  text-decoration: none;
  letter-spacing: .05em;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: color .2s, border-color .2s;
}
.cta-ghost:hover { color: var(--accent); border-color: var(--accent); }

/* ── HERO DECOR ── */
.hero-decor {
  position: relative;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--border);
}
.c1 { width: 320px; height: 320px; }
.c2 { width: 200px; height: 200px; border-color: var(--accent); opacity: .3; animation: rotateCircle 20s linear infinite; }
.strokes {
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: .6rem;
}
.stroke-h {
  width: 60px; height: 1px;
  background: var(--border);
}
.stroke-h:first-child { width: 40px; }
.stroke-h:last-child  { width: 20px; }

@keyframes rotateCircle {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ── MARQUEE ── */
.marquee-wrap {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: .8rem 0;
  background: var(--surface);
}
.marquee-track {
  display: inline-flex;
  gap: 0;
  white-space: nowrap;
  animation: slide 30s linear infinite;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink2);
}
.marquee-track span { padding: 0 1.5rem; }
.marquee-track .sep { color: var(--accent); padding: 0; }
@keyframes slide {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── SECTION BASE ── */
.section {
  padding: 7rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.section-label {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 4rem;
}
.label-num {
  font-size: 10px;
  color: var(--accent);
  letter-spacing: .1em;
  min-width: 24px;
}
.label-jp {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 200;
  color: var(--muted);
  letter-spacing: .1em;
}
.label-en {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  padding-left: 1rem;
  border-left: 1px solid var(--border);
}

/* ── ABOUT ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 5rem;
  align-items: start;
}
.about-text .lead {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--ink);
  margin-bottom: 1.5rem;
}
.about-text .lead strong { color: var(--accent); font-weight: 400; }
.about-text p {
  font-size: 13px;
  color: var(--ink2);
  line-height: 1.9;
  margin-bottom: 1rem;
}

.about-sidebar { display: flex; flex-direction: column; gap: 2rem; }
.profile-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
}
.profile-initial {
  width: 52px; height: 52px;
  background: var(--ink);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: .05em;
  flex-shrink: 0;
}
.profile-name {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .03em;
}
.profile-role {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .05em;
  margin-top: .2rem;
}

.data-list { display: flex; flex-direction: column; }
.data-item {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: .7rem 0;
  border-bottom: 1px solid var(--border);
}
.data-item:first-child { border-top: 1px solid var(--border); }
.dk {
  font-family: var(--serif);
  font-size: .85rem;
  color: var(--muted);
  min-width: 30px;
  letter-spacing: .05em;
}
.dv { font-size: 12px; color: var(--ink); }
.dv a { color: var(--accent); text-decoration: none; }
.dv a:hover { text-decoration: underline; }

.badge-cloud { display: flex; flex-wrap: wrap; gap: .4rem; }
.badge {
  display: inline-block;
  padding: .25rem .75rem;
  border: 1px solid var(--border);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink2);
  transition: all .2s;
}
.badge:hover { border-color: var(--accent); color: var(--accent); }

/* ── SKILLS ── */
.skills-list { display: flex; flex-direction: column; gap: 0; }
.skill-row {
  display: grid;
  grid-template-columns: 280px 1fr;
  grid-template-rows: auto auto;
  gap: .5rem 3rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  transition: background .2s;
}
.skill-row:first-child { border-top: 1px solid var(--border); }
.skill-row:hover { background: var(--surface); margin: 0 -1.5rem; padding-left: 1.5rem; padding-right: 1.5rem; }

.skill-meta { display: flex; align-items: center; gap: 1rem; }
.skill-idx { font-size: 10px; color: var(--accent); letter-spacing: .05em; }
.skill-name { font-size: 14px; letter-spacing: .03em; color: var(--ink); }

.skill-bar-wrap { display: flex; align-items: center; gap: 1rem; }
.skill-bar {
  flex: 1;
  height: 2px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}
.skill-bar-fill {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  background: var(--ink);
  width: 0;
  transition: width 1.4s cubic-bezier(.25, 1, .5, 1);
}
.skill-bar-fill.accent { background: var(--accent); }
.skill-pct { font-size: 11px; color: var(--muted); min-width: 30px; text-align: right; }

.skill-note {
  grid-column: 2;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.7;
}

/* ── WORKS ── */
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
}
.work-card {
  padding: 2.5rem;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: background .2s;
  position: relative;
  overflow: hidden;
}
.work-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s;
}
.work-card:hover { background: var(--surface); }
.work-card:hover::before { transform: scaleX(1); }
.work-card:last-child { border-right: none; }

.work-num {
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 200;
  color: var(--border);
  line-height: 1;
}
.work-type { font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.work-title {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--ink);
}
.work-desc { font-size: 12px; color: var(--ink2); line-height: 1.8; flex: 1; }
.work-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.work-client { font-size: 11px; color: var(--muted); letter-spacing: .05em; }
.work-link {
  display: flex;
  align-items: center;
  gap: .3rem;
  font-size: 11px;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: .05em;
}
.work-link:hover { text-decoration: underline; }
.work-tag {
  font-size: 10px;
  padding: .2rem .6rem;
  border: 1px solid var(--border);
  color: var(--muted);
  letter-spacing: .05em;
}

/* ── EDUCATION ── */
.edu-wrap {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 4rem;
  align-items: center;
  padding: 3rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.edu-year-big {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 200;
  color: var(--muted);
  line-height: 1;
  letter-spacing: -.02em;
}
.edu-year-big span { color: var(--accent); }
.edu-degree {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--ink);
  margin-bottom: .5rem;
}
.edu-degree span { font-size: 1rem; font-style: italic; color: var(--accent); }
.edu-school { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 1.5rem; }
.edu-desc { font-size: 13px; color: var(--ink2); line-height: 1.9; max-width: 500px; }

/* ── LANGUAGE ── */
.lang-section { padding-top: 4rem; padding-bottom: 4rem; border-top: none; }
.lang-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.lang-item { display: flex; flex-direction: column; gap: .5rem; }
.lang-flag { font-size: 1.5rem; }
.lang-name { font-family: var(--serif); font-size: 1.2rem; font-weight: 300; color: var(--ink); }
.lang-lvl { font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.lang-bar-bg { height: 1px; background: var(--border); position: relative; overflow: hidden; margin-top: .5rem; }
.lang-fill { position: absolute; top: 0; left: 0; bottom: 0; background: var(--accent); width: 0; transition: width 1.4s cubic-bezier(.25, 1, .5, 1); }

/* ── CONTACT ── */
.contact-section { padding-bottom: 8rem; }
.contact-body { max-width: 680px; }
.contact-heading {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--ink);
  margin-bottom: 1.5rem;
}
.contact-heading em { font-style: italic; color: var(--accent); }
.contact-sub { font-size: 13px; color: var(--ink2); line-height: 1.9; margin-bottom: 3rem; max-width: 480px; }
.contact-links { display: flex; flex-direction: column; gap: 0; }
.clink {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: var(--ink);
  transition: padding-left .25s;
  position: relative;
}
.clink:first-child { border-top: 1px solid var(--border); }
.clink:hover { padding-left: 1rem; }
.clink:hover .clink-label { color: var(--accent); }
.clink:hover .clink-arrow { color: var(--accent); transform: translateX(4px); }
.clink-label { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; min-width: 90px; transition: color .2s; }
.clink-handle { font-size: 13px; color: var(--muted); flex: 1; }
.clink-arrow { color: var(--border); transition: color .2s, transform .2s; }

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--surface);
}
.foot-left { display: flex; flex-direction: column; gap: .2rem; }
.foot-logo { font-family: var(--mono); font-size: .9rem; font-weight: 500; color: var(--ink); letter-spacing: .08em; }
.foot-sub { font-size: 11px; color: var(--muted); letter-spacing: .05em; }
.foot-right { display: flex; align-items: center; gap: .75rem; font-size: 11px; color: var(--muted); letter-spacing: .05em; }
.foot-sep { color: var(--accent); }

/* ── FADE UP ANIMATION ── */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp .7s ease forwards;
}
.fade-up:nth-child(1) { animation-delay: .1s; }
.fade-up:nth-child(2) { animation-delay: .25s; }
.fade-up:nth-child(3) { animation-delay: .4s; }
.fade-up:nth-child(4) { animation-delay: .55s; }

@keyframes fadeUp {
  to { opacity: 1; transform: none; }
}

/* ── REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s, transform .7s;
}
.reveal.on { opacity: 1; transform: none; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  #hero { grid-template-columns: 1fr; }
  .hero-decor { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .works-grid { grid-template-columns: 1fr; }
  .work-card { border-right: none; border-bottom: 1px solid var(--border); }
  .skill-row { grid-template-columns: 1fr; }
  .skill-note { grid-column: 1; }
  .edu-wrap { grid-template-columns: 1fr; gap: 2rem; }
  .lang-grid { grid-template-columns: 1fr; gap: 2rem; }
  .rail { display: none; }
}

@media (max-width: 768px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .section { padding: 4rem 1.5rem; }
  #hero { padding: 7rem 1.5rem 4rem; }
  footer { padding: 1.5rem; flex-direction: column; gap: 1rem; text-align: center; }
}