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

:root {
  --black:  #0D1117;
  --deep:   #161B24;
  --glass:  rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.12);
  --cyan:   #38BDF8;
  --violet: #818CF8;
  --pink:   #F472B6;
  --white:  #F1F5F9;
  --muted:  #94A3B8;
  --dim:    #1E2A3A;
}

html { scroll-behavior: smooth; font-size: 18px; }

body {
  background: var(--black);
  color: var(--white);
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  line-height: 1.65;
  overflow-x: hidden;
}

/* ── ANIMATED MESH BACKGROUND ── */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ── NOISE OVERLAY ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  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='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.4;
}

/* Everything above bg */
nav, main, footer { position: relative; z-index: 2; }

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 4rem;
  background: rgba(13, 17, 23, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.nav-logo .logo-jp { color: var(--cyan); }
.nav-logo .logo-rest { color: var(--muted); font-weight: 400; }

.nav-links { list-style: none; display: flex; gap: 2.5rem; align-items: center; }
.nav-links a {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transition: transform 0.2s;
}
.nav-links a:hover { color: var(--cyan); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-cta {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--black);
  background: var(--cyan);
  padding: 0.5rem 1.25rem;
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: box-shadow 0.2s, transform 0.15s;
}
.nav-cta:hover {
  box-shadow: 0 0 20px rgba(0,245,255,0.5);
  transform: translateY(-1px);
}

/* ── HERO ── */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 4rem 4rem;
  position: relative;
  overflow: hidden;
}

#hero::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.3;
  animation: scan 6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes scan {
  0%   { top: 20%; opacity: 0; }
  10%  { opacity: 0.3; }
  90%  { opacity: 0.3; }
  100% { top: 85%; opacity: 0; }
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 5rem;
  align-items: center;
  max-width: 1200px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  color: var(--cyan);
  letter-spacing: 0.12em;
  margin-bottom: 1.75rem;
}
.hero-tag .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: blink 1.8s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.2} }

h1 {
  font-family: 'Inter', sans-serif;
  font-size: clamp(3rem, 5.5vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}
.h1-name {
  display: block;
  background: linear-gradient(135deg, #fff 30%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.h1-sub {
  display: block;
  color: var(--muted);
  font-weight: 300;
  font-size: 0.55em;
  letter-spacing: 0.01em;
  margin-top: 0.5rem;
  -webkit-text-fill-color: var(--muted);
}

.hero-typewriter {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  color: var(--violet);
  margin-bottom: 1.5rem;
  min-height: 1.5rem;
}
.cursor {
  display: inline-block;
  width: 2px; height: 1em;
  background: var(--violet);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 0.8s steps(1) infinite;
}

.hero-pitch {
  font-size: 1rem;
  color: #A8BACE;
  line-height: 1.85;
  max-width: 500px;
  margin-bottom: 2.5rem;
}
.hero-pitch em {
  color: var(--white);
  font-style: normal;
  font-weight: 500;
}

.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn-glow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--black);
  background: var(--cyan);
  padding: 0.85rem 2rem;
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: box-shadow 0.25s, transform 0.15s;
}
.btn-glow:hover {
  box-shadow: 0 0 30px rgba(0,245,255,0.6), 0 0 60px rgba(0,245,255,0.2);
  transform: translateY(-2px);
}

.btn-outline {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--white);
  border: 1px solid var(--border);
  padding: 0.85rem 2rem;
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: border-color 0.2s, color 0.2s, box-shadow 0.2s;
}
.btn-outline:hover {
  border-color: var(--violet);
  color: var(--violet);
  box-shadow: 0 0 20px rgba(168,85,247,0.2);
}

/* ── HERO GLASS CARD ── */
.hero-card {
  background: var(--glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(16px);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}
.hero-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.card-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--border);
}
.card-tab {
  flex: 1;
  padding: 0.65rem 1rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.2s;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.card-tab.active { color: var(--cyan); border-bottom-color: var(--cyan); }

.card-panel { display: none; }
.card-panel.active { display: block; }

.card-heading {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1.35;
  margin-bottom: 0.85rem;
}

.card-body {
  font-size: 0.83rem;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.card-list { list-style: none; }
.card-list li {
  font-size: 0.82rem;
  color: #A8BACE;
  padding: 0.45rem 0;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  line-height: 1.5;
}
.card-list li::before {
  content: '›';
  color: var(--cyan);
  font-size: 1rem;
  line-height: 1.3;
  flex-shrink: 0;
}

/* ── SECTIONS ── */
main section { padding: 6rem 4rem; }

.section-wrap { max-width: 1200px; }

.sec-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  color: var(--cyan);
  letter-spacing: 0.2em;
  margin-bottom: 0.65rem;
  opacity: 0.8;
}

h2 {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 3.5rem;
}

/* ── WHY ── */
#why { background: var(--deep); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}

.why-card {
  background: var(--deep);
  padding: 2.25rem 2rem;
  transition: background 0.3s;
  position: relative;
  overflow: hidden;
}
.why-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(56,189,248,0.05), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.why-card:hover { background: #1a2233; }
.why-card:hover::after { opacity: 1; }

.why-stat {
  font-family: 'Inter', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.why-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.why-desc {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.75;
}

/* ── EXPERIENCE ── */
#experience { background: var(--black); }

.exp-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 800px;
}

.exp-card {
  padding: 2rem 2rem 2rem 2.5rem;
  border-left: 1px solid var(--border);
  position: relative;
  transition: border-color 0.3s;
}
.exp-card:hover { border-color: var(--violet); }
.exp-card::before {
  content: '';
  position: absolute;
  left: -5px; top: 1.85rem;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--deep);
  border: 2px solid var(--muted);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.exp-card:hover::before {
  border-color: var(--cyan);
  box-shadow: 0 0 10px rgba(0,245,255,0.6);
}

.exp-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.4rem;
  flex-wrap: wrap;
}

.exp-dates {
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  color: var(--violet);
  letter-spacing: 0.06em;
}

.exp-company {
  font-size: 0.75rem;
  color: var(--muted);
  background: var(--glass);
  border: 1px solid var(--border);
  padding: 0.15rem 0.6rem;
  letter-spacing: 0.04em;
}

.exp-role {
  font-family: 'Inter', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1rem;
}

.exp-bullets { list-style: none; }
.exp-bullets li {
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.7;
  padding: 0.2rem 0 0.2rem 1.1rem;
  position: relative;
}
.exp-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-size: 0.6rem;
  top: 0.35rem;
}

/* ── SKILLS ── */
#skills { background: var(--deep); }

.skills-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
}

.skill-group-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  color: var(--violet);
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.skill-row { margin-bottom: 1.25rem; }
.skill-top {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--white);
  font-weight: 500;
  margin-bottom: 0.5rem;
}
.skill-top span:last-child {
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  color: var(--cyan);
}

.skill-track {
  height: 3px;
  background: var(--dim);
  position: relative;
  overflow: visible;
}
.skill-fill {
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  transition: width 1.4s cubic-bezier(0.25, 1, 0.5, 1);
  position: relative;
}
.skill-fill::after {
  content: '';
  position: absolute;
  right: -1px; top: -3px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  opacity: 0;
  transition: opacity 0.3s 1.2s;
}
.skill-fill.lit::after { opacity: 1; }

.cert-items { display: flex; flex-direction: column; gap: 0; }
.cert-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}
.cert-icon {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--cyan);
  flex-shrink: 0;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
}
.cert-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--white);
}
.cert-sub {
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 0.1rem;
}

/* ── CONTACT ── */
#contact { background: var(--black); }

/* ── MODAL ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5,8,16,0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}
.modal-box {
  background: var(--deep);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 3rem 2.5rem 2.5rem;
  max-width: 380px;
  width: 90%;
  text-align: center;
  position: relative;
  transform: translateY(16px);
  transition: transform 0.25s ease;
  box-shadow: 0 0 60px rgba(168,85,247,0.12);
}
.modal-overlay.open .modal-box {
  transform: translateY(0);
}
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.1rem;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.1rem;
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s;
}
.modal-close:hover { color: var(--white); }
.modal-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--cyan);
}
.modal-box h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.modal-sub {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1.75rem;
}
.modal-email {
  display: inline-block;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.75rem 1.75rem;
  border-radius: 2rem;
  letter-spacing: 0.01em;
  transition: opacity 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 20px rgba(168,85,247,0.3);
}
.modal-email:hover { opacity: 0.88; box-shadow: 0 0 30px rgba(0,245,255,0.3); }

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 1.75rem 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'Inter', sans-serif;
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  position: relative;
  z-index: 2;
}
.footer-glow { color: var(--cyan); }

/* ── TABLET ── */
@media (max-width: 960px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { gap: 1.5rem; }
  #hero { padding: 7rem 1.5rem 3rem; }
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  main section { padding: 4rem 1.5rem; }
  .why-grid { grid-template-columns: 1fr 1fr; gap: 1px; }
  .skills-layout { grid-template-columns: 1fr; gap: 3rem; }
  footer { flex-direction: column; gap: 0.5rem; padding: 1.5rem; text-align: center; }
}

/* ── MOBILE ── */
@media (max-width: 600px) {
  html { font-size: 16px; }

  /* Nav — hide text links, push logo and connect to opposite ends */
  nav { padding: 0.85rem 1.25rem; justify-content: space-between; }
  .nav-links li:not(:last-child) { display: none; }
  .nav-links { gap: 0; margin-left: auto; }
  .nav-cta { padding: 0.45rem 1rem; font-size: 0.75rem; }

  /* Hero */
  #hero { padding: 6rem 1.25rem 2.5rem; min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  h1 { font-size: clamp(2.4rem, 10vw, 3.2rem); }
  .h1-sub { font-size: 0.85rem; }
  .hero-pitch { font-size: 0.92rem; max-width: 100%; }
  .hero-btns { flex-direction: column; gap: 0.75rem; }
  .btn-glow, .btn-outline { text-align: center; padding: 0.85rem 1.5rem; }

  /* Hero card */
  .hero-card { padding: 1.25rem; }
  .card-heading { font-size: 0.95rem; }
  .card-body { font-size: 0.8rem; }

  /* Sections */
  main section { padding: 3rem 1.25rem; }
  h2 { font-size: clamp(1.5rem, 7vw, 2rem); margin-bottom: 2rem; }

  /* Why grid — single column on phone */
  .why-grid { grid-template-columns: 1fr; gap: 1px; }
  .why-card { padding: 1.5rem 1.25rem; }
  .why-stat { font-size: 1.8rem; }

  /* Experience */
  .exp-card { padding: 1.5rem 1rem 1.5rem 1.75rem; }
  .exp-meta { flex-direction: column; gap: 0.3rem; }
  .exp-role { font-size: 0.95rem; }
  .exp-bullets li { font-size: 0.8rem; }

  /* Modal */
  .modal-box { padding: 2rem 1.5rem; }
  .modal-email { font-size: 0.82rem; padding: 0.7rem 1.25rem; word-break: break-all; }

  /* Footer */
  footer { padding: 1.25rem; font-size: 0.62rem; }
}

@media (prefers-reduced-motion: reduce) {
  #hero::after { display: none; }
  .skill-fill { transition: none; }
  .dot { animation: none; }
}