/* =====================================================
   iNext Group — Design System v4
   Inspired by noeinoi.com — bordered cards, dual themes
   ===================================================== */

/* === TOKENS — DARK (default) === */
:root {
  --bg: #0F0F10;
  --bg-card: #161618;
  --t1: #F7F7F8;
  --t2: #888888;
  --t3: #555555;
  --border-c: rgba(255,255,255,0.15);
  --border-w: 3px;
  --accent-blue: #1A4EFF;
  --accent-cyan: #00D9FF;
  --accent-pink: #FF1493;
  --accent-purple: #5C4EFF;
  --accent-teal: #1BBFAE;
  --accent-orange: #FF6B35;
  --accent-green: #00CC66;
  --tag-bg: rgba(255,255,255,0.08);
  --tag-t: rgba(255,255,255,0.7);
  --overlay: rgba(15,15,16,0.96);
  --f-sans: -apple-system, "system-ui", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
  --bottom-h: 48px;
  --nav-h: 56px;
}

/* === TOKENS — LIGHT === */
[data-theme="light"] {
  --bg: #FFFFFF;
  --bg-card: #FFFFFF;
  --t1: #111111;
  --t2: #555555;
  --t3: #999999;
  --border-c: #000000;
  --tag-bg: #000000;
  --tag-t: #FFFFFF;
  --overlay: rgba(255,255,255,0.96);
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  font-family: var(--f-sans);
  background: var(--bg);
  color: var(--t1);
  line-height: 1.5;
  overflow-x: hidden;
  padding-bottom: var(--bottom-h);
  transition: background 0.3s, color 0.3s;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, textarea, select {
  font-family: inherit; font-size: inherit;
  border: none; outline: none; background: none; color: inherit;
}
::selection { background: var(--accent); color: #fff; }

/* === v11 PER-PAGE ACCENT (noeinoi-style: color in letters & elements, background stays neutral) === */
:root { --accent: var(--accent-blue); }
body[data-accent="blue"]   { --accent: #1A4EFF; }
body[data-accent="purple"] { --accent: #5C4EFF; }
body[data-accent="pink"]   { --accent: #FF1493; }
body[data-accent="cyan"]   { --accent: #00D9FF; }
body[data-accent="teal"]   { --accent: #1BBFAE; }
body[data-accent="orange"] { --accent: #FF6B35; }
body[data-accent="green"]  { --accent: #00CC66; }
body[data-accent="red"]    { --accent: #FF3B30; }
/* the page color shows up in the big letters and key details */
body[data-accent] .hero-card__title { color: var(--accent); }
body[data-accent] .bigtype__text { color: var(--accent); }
body[data-accent] .menu-overlay__link:hover { color: var(--accent); }

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--t3); border-radius: 3px; }

/* === NAV === */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100; height: var(--nav-h);
  display: flex; align-items: center;
  padding: 0 20px;
  border-bottom: var(--border-w) solid var(--border-c);
  background: var(--bg);
  transition: background 0.3s, border-color 0.3s;
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: 1400px; margin: 0 auto;
}
.nav__logo {
  font-weight: 900; font-size: 1.4rem;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.nav__right {
  display: flex; align-items: center; gap: 12px;
}
.nav__clock {
  font-family: var(--f-mono); font-size: 0.7rem;
  color: var(--t2); letter-spacing: 0.04em;
}
.nav__theme-btn,
.nav__sound-btn,
.nav__menu-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 14px;
  border: 2px solid var(--border-c);
  font-family: var(--f-mono); font-size: 0.65rem;
  font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; cursor: pointer;
  color: var(--t1); background: var(--bg);
  transition: all 0.2s;
}
.nav__theme-btn:hover,
.nav__sound-btn:hover,
.nav__menu-btn:hover {
  background: var(--t1); color: var(--bg);
}
.nav__theme-btn:active,
.nav__sound-btn:active,
.nav__menu-btn:active,
.bottom-bar__btn:active,
.form__submit:active { transform: translate(2px, 2px); }
.nav__sound-btn.off { opacity: 0.45; text-decoration: line-through; }
.nav__logo:hover { animation: glitch 0.25s steps(2) infinite; }
@keyframes glitch {
  0% { text-shadow: 2px 0 var(--accent-pink), -2px 0 var(--accent-cyan); }
  50% { text-shadow: -2px 0 var(--accent-pink), 2px 0 var(--accent-cyan); }
}

/* === MENU OVERLAY === */
.menu-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: var(--overlay);
  display: none; flex-direction: column;
  padding: 80px 24px 24px;
  transition: background 0.3s;
}
.menu-overlay.open { display: flex; }
.menu-overlay__close {
  position: absolute; top: 14px; right: 20px;
  font-family: var(--f-mono); font-size: 0.75rem;
  font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; cursor: pointer;
  color: var(--t1); padding: 8px;
}
.menu-overlay__links {
  display: flex; flex-direction: column;
  gap: 0; flex: 1; justify-content: center;
}
.menu-overlay__link {
  display: block; padding: 20px 0;
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 900; letter-spacing: -0.02em;
  text-transform: uppercase;
  border-top: 2px solid var(--border-c);
  transition: padding-left 0.3s, color 0.3s;
  color: var(--t1);
}
.menu-overlay__link:last-child {
  border-bottom: 2px solid var(--border-c);
}
.menu-overlay__link:hover {
  padding-left: 20px;
  color: var(--accent);
}
.menu-overlay__link.active {
  color: var(--accent);
}
.menu-overlay__link { opacity: 0; transform: translateY(30px); }
.menu-overlay.open .menu-overlay__link {
  animation: menuIn 0.5s cubic-bezier(0.66, 0, 0.01, 1) forwards;
}
.menu-overlay.open .menu-overlay__link:nth-child(1) { animation-delay: 0.06s; }
.menu-overlay.open .menu-overlay__link:nth-child(2) { animation-delay: 0.12s; }
.menu-overlay.open .menu-overlay__link:nth-child(3) { animation-delay: 0.18s; }
.menu-overlay.open .menu-overlay__link:nth-child(4) { animation-delay: 0.24s; }
.menu-overlay.open .menu-overlay__link:nth-child(5) { animation-delay: 0.3s; }
.menu-overlay.open .menu-overlay__link:nth-child(6) { animation-delay: 0.36s; }
@keyframes menuIn { to { opacity: 1; transform: translateY(0); } }
.menu-overlay__bottom {
  display: flex; gap: 12px; padding-top: 20px;
  font-family: var(--f-mono); font-size: 0.65rem;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--t3);
}

/* === HERO CARD === */
.hero-card {
  animation: cardIn 0.6s cubic-bezier(0.66, 0, 0.01, 1);
  margin: 20px;
  border: var(--border-w) solid var(--border-c);
  padding: clamp(40px, 8vw, 80px) clamp(24px, 5vw, 48px);
  min-height: calc(100vh - var(--nav-h) - var(--bottom-h) - 40px);
  min-height: calc(100dvh - var(--nav-h) - var(--bottom-h) - 40px);
  display: flex; flex-direction: column;
  justify-content: space-between;
  position: relative; overflow: hidden;
  transition: border-color 0.3s;
}
@keyframes cardIn { from { opacity: 0; transform: translateY(20px); } }
.hero-card__title::after {
  content: ' ▮'; color: var(--accent-pink);
  animation: blink 1.1s steps(2, start) infinite;
}
@keyframes blink { to { visibility: hidden; } }
.hero-card__id {
  font-family: var(--f-mono); font-size: 0.78rem; font-weight: 700;
  color: var(--accent); letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.hero-card__title {
  font-size: clamp(2rem, 5.5vw, 4rem);
  font-weight: 900; line-height: 1.05;
  letter-spacing: -0.02em; text-transform: uppercase;
  margin-bottom: 24px; max-width: 800px;
}
.hero-card__title .ch {
  display: inline-block; opacity: 0;
  transform: translateY(14px);
  animation: chShow 0.5s cubic-bezier(0.66, 0, 0.01, 1) forwards;
}
@keyframes chShow {
  to { opacity: 1; transform: translateY(0); }
}
.hero-card__desc {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: var(--t2); max-width: 560px;
  line-height: 1.6; margin-bottom: 24px;
}
.hero-card__tags {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 24px;
}
.hero-card__meta {
  display: flex; justify-content: space-between;
  align-items: flex-end; gap: 20px; flex-wrap: wrap;
  padding-top: 24px;
  border-top: 2px solid var(--border-c);
}
.hero-card__year {
  font-family: var(--f-mono); font-size: 0.75rem;
  color: var(--t2); letter-spacing: 0.04em;
}
.hero-card__links {
  display: flex; gap: 12px; flex-wrap: wrap;
}

/* === TAG === */
.tag {
  display: inline-block; padding: 4px 12px;
  background: var(--tag-bg); color: var(--tag-t);
  font-family: var(--f-mono); font-size: 0.65rem;
  font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: background 0.3s, color 0.3s;
}

/* === ARROW LINK === */
.arrow-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-mono); font-size: 0.75rem;
  font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--t1);
  transition: color 0.2s;
}
.arrow-link:hover { color: var(--accent); }
.arrow-link .arr { transition: transform 0.3s; }
.arrow-link:hover .arr { transform: translateX(4px); }

/* === PROJECT CARD === */
.project-card {
  display: block; margin: 0 20px 20px;
  border: var(--border-w) solid var(--border-c);
  padding: clamp(28px, 5vw, 48px) clamp(20px, 4vw, 40px);
  position: relative; overflow: hidden;
  transition: all 0.3s ease;
}
.project-card::before {
  content: ''; position: absolute; inset: 0;
  opacity: 0; transition: opacity 0.4s;
  z-index: 0;
}
.project-card:hover::before { opacity: 1; }
.project-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0 var(--border-c);
}
.project-card > * { position: relative; z-index: 1; }
.project-card--blue::before { background: var(--accent-blue); }
.project-card--cyan::before { background: var(--accent-cyan); }
.project-card--pink::before { background: var(--accent-pink); }
.project-card--purple::before { background: var(--accent-purple); }
.project-card--teal::before { background: var(--accent-teal); }
.project-card--orange::before { background: var(--accent-orange); }
.project-card--green::before { background: var(--accent-green); }

.project-card:hover .project-card__id,
.project-card:hover .project-card__title,
.project-card:hover .project-card__desc,
.project-card:hover .project-card__year,
.project-card:hover .tag,
.project-card:hover .arrow-link {
  color: #fff;
}
.project-card:hover .tag {
  background: rgba(255,255,255,0.2);
  color: #fff;
}
.project-card__id {
  font-family: var(--f-mono); font-size: 0.7rem;
  color: var(--t3); letter-spacing: 0.06em;
  margin-bottom: 16px; transition: color 0.3s;
}
.project-card__title {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 900; line-height: 1.1;
  letter-spacing: -0.01em; text-transform: uppercase;
  margin-bottom: 12px; transition: color 0.3s;
}
.project-card__desc {
  font-size: clamp(0.95rem, 1.3vw, 1.1rem);
  color: var(--t2); line-height: 1.55;
  margin-bottom: 16px; max-width: 600px;
  transition: color 0.3s;
}
.project-card__bottom {
  display: flex; justify-content: space-between;
  align-items: center; gap: 16px; flex-wrap: wrap;
  padding-top: 16px;
  border-top: 2px solid var(--border-c);
  transition: border-color 0.3s;
}
.project-card:hover .project-card__bottom {
  border-color: rgba(255,255,255,0.3);
}
.project-card__year {
  font-family: var(--f-mono); font-size: 0.75rem;
  color: var(--t2); letter-spacing: 0.04em;
  transition: color 0.3s;
}
.project-card__tags {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.project-card__arrow {
  font-size: 1.2rem; transition: transform 0.3s;
}
.project-card:hover .project-card__arrow {
  transform: translateX(6px);
}

/* === SECTION CARD === */
.section-card {
  margin: 0 20px 20px;
  border: var(--border-w) solid var(--border-c);
  padding: clamp(28px, 5vw, 48px) clamp(20px, 4vw, 40px);
  transition: border-color 0.3s;
}
.section-card__id {
  font-family: var(--f-mono); font-size: 0.78rem; font-weight: 700;
  color: var(--accent); letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.section-card__title {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 900; line-height: 1.1;
  letter-spacing: -0.01em; text-transform: uppercase;
  margin-bottom: 16px;
}
.section-card__desc {
  font-size: clamp(0.95rem, 1.3vw, 1.1rem);
  color: var(--t2); line-height: 1.6;
  max-width: 600px; margin-bottom: 20px;
}

/* === INFO LIST === */
.info-list {}
.info-row {
  display: flex; justify-content: space-between;
  align-items: baseline; gap: 20px;
  padding: 16px 0;
  border-top: 2px solid var(--border-c);
  transition: border-color 0.3s;
}
.info-row:last-child { border-bottom: 2px solid var(--border-c); }
.info-row__label {
  font-family: var(--f-mono); font-size: 0.7rem;
  font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--t3);
  flex-shrink: 0; min-width: 100px;
}
.info-row__value {
  font-size: 0.95rem; color: var(--t1);
  text-align: right;
}
.info-row__value a { transition: color 0.2s; }
.info-row__value a:hover { color: var(--accent-cyan); }

/* === PRINCIPLE LIST === */
.principle-list {}
.principle {
  padding: 20px 0;
  border-top: 2px solid var(--border-c);
  transition: border-color 0.3s, padding-left 0.3s;
}
.principle:last-child { border-bottom: 2px solid var(--border-c); }
.principle:hover { padding-left: 12px; }
.principle__title {
  font-size: 1rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.01em;
  margin-bottom: 6px;
}
.principle__desc {
  font-size: 0.95rem; color: var(--t2); line-height: 1.55;
}

/* === TWO COLUMN === */
.cols2 {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* === FORM === */
.form { margin-top: 24px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form__group { margin-bottom: 16px; }
.form__label {
  display: block; font-family: var(--f-mono);
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--t3); margin-bottom: 6px;
}
.form__input, .form__textarea, .form__select {
  width: 100%; padding: 12px 14px;
  border: 2px solid var(--border-c);
  background: var(--bg); color: var(--t1);
  font-size: 0.95rem; transition: border-color 0.2s;
}
.form__input:focus, .form__textarea:focus, .form__select:focus {
  border-color: var(--accent);
}
.form__input::placeholder, .form__textarea::placeholder { color: var(--t3); }
.form__select option { background: var(--bg); }
.form__textarea { resize: vertical; min-height: 100px; }
.form__submit {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border: 2px solid var(--border-c);
  font-family: var(--f-mono); font-size: 0.75rem;
  font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; cursor: pointer;
  color: var(--bg); background: var(--t1);
  transition: all 0.2s;
}
.form__submit:hover {
  background: var(--accent-blue); color: #fff;
  border-color: var(--accent-blue);
}

/* === MAP === */
.map {
  height: 300px; overflow: hidden;
  border: var(--border-w) solid var(--border-c);
  margin: 0 20px 20px;
  transition: border-color 0.3s;
}
.map iframe {
  width: 100%; height: 100%; border: none;
  filter: invert(0.92) hue-rotate(180deg) brightness(0.8);
}
[data-theme="light"] .map iframe { filter: none; }

/* === PROSE === */
.prose { font-size: 1rem; line-height: 1.8; color: var(--t2); }
.prose h2 {
  font-size: 0.85rem; font-weight: 800;
  font-family: var(--f-mono); letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--t1);
  margin: 40px 0 14px;
}
.prose p { margin-bottom: 14px; }
.prose ul { list-style: disc; padding-left: 22px; margin-bottom: 14px; }
.prose ul li { margin-bottom: 5px; }
.prose a { color: var(--accent-blue); }

/* === ERROR === */
.error {
  min-height: calc(100vh - var(--nav-h) - var(--bottom-h));
  min-height: calc(100dvh - var(--nav-h) - var(--bottom-h));
  display: flex; align-items: center; justify-content: center;
  text-align: center; margin: 20px;
  border: var(--border-w) solid var(--border-c);
  padding: 40px 20px;
}
.error__code {
  font-size: clamp(5rem, 15vw, 12rem);
  font-weight: 900; letter-spacing: -0.04em;
  line-height: 1; margin-bottom: 12px;
  color: var(--accent-pink);
}
.error__title {
  font-size: 1.25rem; font-weight: 800;
  text-transform: uppercase; margin-bottom: 8px;
}
.error__desc {
  color: var(--t2); margin-bottom: 28px; font-size: 1rem;
}

/* === BOTTOM BAR === */
.bottom-bar {
  position: fixed; bottom: 0; left: 0; right: 0;
  z-index: 100; height: var(--bottom-h);
  display: flex; align-items: center;
  padding: 0 20px;
  border-top: var(--border-w) solid var(--border-c);
  background: var(--bg);
  transition: background 0.3s, border-color 0.3s;
}
.bottom-bar__inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: 1400px; margin: 0 auto;
}
.bottom-bar__copy {
  font-family: var(--f-mono); font-size: 0.6rem;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--t3);
}
.bottom-bar__actions {
  display: flex; align-items: center; gap: 12px;
}
.bottom-bar__btn {
  display: flex; align-items: center; gap: 6px;
  padding: 4px 12px;
  border: 2px solid var(--border-c);
  font-family: var(--f-mono); font-size: 0.6rem;
  font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; cursor: pointer;
  color: var(--t1); background: var(--bg);
  transition: all 0.2s;
}
.bottom-bar__btn:hover {
  background: var(--t1); color: var(--bg);
}

/* === TICKER === */
.ticker {
  margin: 0 20px 20px;
  border: var(--border-w) solid var(--border-c);
  overflow: hidden; padding: 12px 0;
}
.ticker__track {
  display: inline-flex; white-space: nowrap;
  animation: tick 22s linear infinite;
}
.ticker:hover .ticker__track { animation-play-state: paused; }
.ticker__track span {
  font-family: var(--f-mono); font-size: 0.7rem;
  font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--t2);
  padding-right: 48px;
}
@keyframes tick { to { transform: translateX(-50%); } }

/* === SCROLL PROGRESS === */
.scroll-progress {
  position: fixed; right: 0; top: var(--nav-h);
  bottom: var(--bottom-h); width: 4px;
  z-index: 90; pointer-events: none;
}
.scroll-progress__fill {
  width: 100%; height: 0;
  background: var(--accent);
}

/* === REVEAL === */
.rv {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.rv.v { opacity: 1; transform: translateY(0); }
.rv-d1 { transition-delay: 0.1s; }
.rv-d2 { transition-delay: 0.2s; }
.rv-d3 { transition-delay: 0.3s; }
.rv-d4 { transition-delay: 0.4s; }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero-card { margin: 12px; padding: 28px 18px; }
  .project-card { margin: 0 12px 12px; padding: 24px 18px; }
  .section-card { margin: 0 12px 12px; padding: 24px 18px; }
  .map { margin: 0 12px 12px; }
  .error { margin: 12px; }
  .cols2 { grid-template-columns: 1fr; gap: 16px; }
  .form__row { grid-template-columns: 1fr; }
  .info-row { flex-direction: column; gap: 2px; }
  .info-row__value { text-align: left; }
  .nav__clock { display: none; }
  .nav__sound-btn { display: none; }
  .hero-card__meta { flex-direction: column; align-items: flex-start; }
  .bottom-bar__copy { font-size: 0.5rem; }
}

@media (max-width: 480px) {
  .hero-card__title { font-size: clamp(1.6rem, 8vw, 2.4rem); }
  .project-card__title { font-size: clamp(1.2rem, 5vw, 1.6rem); }
}

/* =====================================================
   v5 EXTENSIONS — brand doc 2026
   ===================================================== */

/* === NAV CTA === */
.nav__cta {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 14px;
  border: 2px solid var(--border-c);
  font-family: var(--f-mono); font-size: 0.65rem;
  font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bg); background: var(--t1);
  transition: all 0.2s;
}
.nav__cta:hover { background: var(--accent-blue); border-color: var(--accent-blue); color: #fff; }

/* === PRELOADER (opening animation) === */
.preloader {
  position: fixed; inset: 0; z-index: 500;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.6s cubic-bezier(0.66, 0, 0.01, 1);
}
.preloader.done { transform: translateY(-100%); }
.preloader__word {
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 900; text-transform: uppercase;
  letter-spacing: -0.02em; text-align: center; padding: 0 16px;
}
.preloader__word.pop { animation: pop 0.3s cubic-bezier(0.66, 0, 0.01, 1); }
@keyframes pop { from { transform: scale(0.92); opacity: 0; } }

/* === CURSOR FOLLOWER === */
.cursor {
  position: fixed; left: 0; top: 0; z-index: 400;
  width: 8px; height: 8px; background: var(--accent);
  pointer-events: none; transform: translate(-50%, -50%);
  transition: width 0.25s, height 0.25s, background 0.25s;
}
.cursor.grow {
  width: 34px; height: 34px; background: transparent;
  outline: 2px solid var(--accent-blue);
}
@media (pointer: coarse) { .cursor { display: none; } }

/* === BUSINESS SELECTOR === */
.selector__grid {
  display: grid; grid-template-columns: 1fr 1.2fr;
  gap: 20px; margin-top: 24px;
}
.selector__item {
  display: flex; justify-content: space-between; align-items: center;
  width: 100%; padding: 18px 16px; text-align: left;
  border: 2px solid var(--border-c); margin-bottom: 12px;
  font-weight: 800; text-transform: uppercase; font-size: 1rem;
  letter-spacing: 0.01em; cursor: pointer; transition: all 0.2s;
  color: var(--t1); background: transparent;
}
.selector__item small {
  font-family: var(--f-mono); font-size: 0.6rem;
  letter-spacing: 0.08em; color: var(--t3); transition: color 0.2s;
}
.selector__item.active { background: var(--t1); color: var(--bg); }
.selector__item.active small { color: var(--bg); }
.selector__stage {
  position: relative; border: 2px solid var(--border-c);
  min-height: 340px; overflow: hidden; background: var(--bg-card);
}
.selector__panel {
  position: absolute; inset: 0; padding: 20px;
  opacity: 0; transform: translateY(14px);
  transition: opacity 0.4s, transform 0.4s;
  display: flex; flex-direction: column; gap: 14px;
}
.selector__panel.active { opacity: 1; transform: none; }
.selector__panel h4 {
  font-family: var(--f-mono); font-size: 0.7rem;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--t2);
}

/* --- mock: software dashboard --- */
.mock-dash { flex: 1; display: grid; grid-template-columns: 56px 1fr; gap: 12px; }
.mock-dash__side {
  border: 2px solid var(--border-c); padding: 8px;
  display: flex; flex-direction: column; gap: 8px;
}
.mock-dash__side i { height: 8px; background: var(--border-c); }
.mock-dash__side i:first-child { background: var(--accent-blue); }
.mock-dash__main { display: flex; flex-direction: column; gap: 12px; }
.mock-dash__top { display: flex; gap: 8px; }
.mock-dash__top i { height: 26px; flex: 1; border: 2px solid var(--border-c); }
.mock-bars { display: flex; align-items: flex-end; gap: 8px; flex: 1; min-height: 120px; }
.mock-bars i { flex: 1; background: var(--accent-blue); height: 30%; animation: barGrow 1.6s ease-in-out infinite alternate; }
.mock-bars i:nth-child(2) { background: var(--accent-cyan); animation-delay: 0.15s; }
.mock-bars i:nth-child(3) { background: var(--accent-purple); animation-delay: 0.3s; }
.mock-bars i:nth-child(4) { background: var(--accent-teal); animation-delay: 0.45s; }
.mock-bars i:nth-child(5) { background: var(--accent-pink); animation-delay: 0.6s; }
@keyframes barGrow { from { height: 18%; } to { height: 92%; } }

/* --- mock: smartphone --- */
.mock-phone-wrap { flex: 1; display: flex; align-items: center; justify-content: center; }
.mock-phone {
  width: 160px; height: 300px; border: 3px solid var(--border-c);
  border-radius: 22px; position: relative; padding: 22px 12px 12px;
  animation: float 4s ease-in-out infinite;
}
.mock-phone::before {
  content: ''; position: absolute; top: 8px; left: 50%;
  transform: translateX(-50%); width: 44px; height: 6px;
  background: var(--border-c); border-radius: 3px;
}
.mock-phone__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.mock-phone__grid i { aspect-ratio: 1; background: var(--tag-bg); border-radius: 8px; }
.mock-phone__grid i:nth-child(1) { background: var(--accent-pink); }
.mock-phone__grid i:nth-child(5) { background: var(--accent-blue); }
.mock-phone__grid i:nth-child(9) { background: var(--accent-teal); }
@keyframes float { 50% { transform: translateY(-12px); } }

/* --- mock: online store --- */
.mock-store { flex: 1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; align-content: start; }
.mock-store__item { border: 2px solid var(--border-c); padding: 8px; transition: transform 0.3s; }
.mock-store__item:nth-child(2) { animation: float 3.5s ease-in-out infinite; }
.mock-store__item .img { height: 52px; background: var(--tag-bg); margin-bottom: 8px; }
.mock-store__item .line { height: 6px; background: var(--border-c); margin-bottom: 5px; }
.mock-store__item .price { height: 6px; width: 45%; background: var(--accent-pink); }

/* === ECOSYSTEM FLOW === */
.flow { margin-top: 20px; }
.flow__step { display: flex; gap: 20px; align-items: baseline; padding: 16px 0; border-top: 2px solid var(--border-c); }
.flow__step:last-of-type { border-bottom: 2px solid var(--border-c); }
.flow__step b {
  font-size: clamp(1.1rem, 2.4vw, 1.6rem); font-weight: 900;
  text-transform: uppercase; min-width: 200px; letter-spacing: -0.01em;
}
.flow__step p { color: var(--t2); font-size: 0.95rem; }
.flow__arrow {
  font-family: var(--f-mono); color: var(--accent-blue);
  padding: 2px 0 2px 4px; animation: arrowPulse 1.5s infinite;
}
@keyframes arrowPulse { 50% { transform: translateY(5px); opacity: 0.4; } }

/* === CAPABILITIES GRID === */
.caps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 20px; }
.caps__col { border: 2px solid var(--border-c); padding: 16px; transition: all 0.25s; }
.caps__col:hover { transform: translate(-3px, -3px); box-shadow: 6px 6px 0 var(--border-c); }
.caps__col h4 {
  font-family: var(--f-mono); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 12px; color: var(--t1);
}
.caps__col li {
  padding: 7px 0; border-top: 1px solid var(--border-c);
  font-size: 0.85rem; color: var(--t2);
}

/* === BIG TYPE === */
.bigtype {
  margin: 0 20px 20px; padding: clamp(60px, 10vw, 120px) 20px;
  border: var(--border-w) solid var(--border-c);
  text-align: center; overflow: hidden;
}
.bigtype__rotator {
  font-family: var(--f-mono); font-size: clamp(0.75rem, 1.4vw, 0.95rem);
  letter-spacing: 0.24em; color: var(--accent);
  text-transform: uppercase; margin-bottom: 20px; height: 1.4em;
}
.bigtype__rotator span { display: inline-block; animation: wordIn 0.4s cubic-bezier(0.66, 0, 0.01, 1); }
@keyframes wordIn { from { transform: translateY(100%); opacity: 0; } }
.bigtype__text {
  font-size: clamp(2.4rem, 8.5vw, 7.5rem);
  font-weight: 900; text-transform: uppercase;
  letter-spacing: -0.03em; line-height: 0.95;
}
.bigtype__text .outline {
  color: transparent; -webkit-text-stroke: 2px var(--t1);
}

/* === FOOTER === */
.footer {
  margin: 0 20px 20px;
  border: var(--border-w) solid var(--border-c);
  padding: clamp(28px, 5vw, 48px) clamp(20px, 4vw, 40px);
}
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 28px; }
.footer__logo { font-size: 2rem; font-weight: 900; text-transform: uppercase; letter-spacing: -0.02em; margin-bottom: 10px; }
.footer__desc { color: var(--t2); font-size: 0.9rem; max-width: 260px; line-height: 1.6; }
.footer__col h4 {
  font-family: var(--f-mono); font-size: 0.65rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--t3); margin-bottom: 12px;
}
.footer__col a {
  display: block; padding: 4px 0; font-size: 0.9rem; color: var(--t2);
  transition: color 0.2s, padding-left 0.2s;
}
.footer__col a:hover { color: var(--t1); padding-left: 6px; }
.footer__base {
  margin-top: 32px; padding-top: 16px; border-top: 2px solid var(--border-c);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-family: var(--f-mono); font-size: 0.6rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--t3);
}
.footer__base a { color: var(--t3); }
.footer__base a:hover { color: var(--t1); }

/* === STRUCTURE TREE === */
.tree { margin-top: 20px; text-align: center; }
.tree__parent {
  display: inline-block; padding: 14px 40px;
  border: var(--border-w) solid var(--border-c);
  font-weight: 900; text-transform: uppercase; font-size: 1.2rem;
}
.tree__line { width: 2px; height: 28px; background: var(--border-c); margin: 0 auto; }
.tree__kids { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.tree__kid { border: 2px solid var(--border-c); padding: 18px 14px; transition: all 0.25s; }
.tree__kid:hover { transform: translate(-3px, -3px); box-shadow: 6px 6px 0 var(--border-c); }
.tree__kid b { display: block; font-weight: 900; text-transform: uppercase; margin-bottom: 6px; }
.tree__kid span { font-family: var(--f-mono); font-size: 0.65rem; letter-spacing: 0.08em; color: var(--t3); text-transform: uppercase; }

/* === v7 PAGE TRANSITION VEIL (noeinoi-parity) === */
.page-veil {
  position: fixed; inset: 0; z-index: 300; pointer-events: none;
  display: flex; flex-direction: column;
}
.page-veil__panel {
  flex: 1; background: var(--bg-card);
  transform: scaleY(0); transform-origin: top;
  border-bottom: var(--border-w) solid var(--border-c);
  transition: transform 0.45s cubic-bezier(0.77, 0, 0.18, 1);
}
.page-veil__panel:last-child {
  transform-origin: bottom; transition-delay: 0.05s;
  border-bottom: 0; border-top: var(--border-w) solid var(--border-c);
}
.page-veil__label {
  position: absolute; top: 50%; left: 50%; color: var(--accent);
  transform: translate(-50%, -50%) translateY(14px);
  font-weight: 900; text-transform: uppercase; letter-spacing: 0.02em;
  font-size: clamp(1.6rem, 5vw, 3.4rem); opacity: 0; white-space: nowrap;
  transition: opacity 0.25s 0.28s, transform 0.25s 0.28s;
}
.page-veil.cover { pointer-events: all; }
.page-veil.cover .page-veil__panel { transform: scaleY(1); }
.page-veil.cover .page-veil__label { opacity: 1; transform: translate(-50%, -50%) translateY(0); }

/* === v7 PAGE ENTRANCE === */
body.page-in main { animation: pageIn 0.65s cubic-bezier(0.22, 1, 0.36, 1) both; }
@keyframes pageIn { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }

/* === v7 LIKE BUTTON === */
.bottom-bar__btn--like { min-width: 78px; }
.bottom-bar__btn--like.pop { animation: likePop 0.45s cubic-bezier(0.34, 1.56, 0.64, 1); }
@keyframes likePop { 0% { transform: scale(1); } 40% { transform: scale(1.35) rotate(-4deg); } 100% { transform: scale(1); } }

/* === v8 SOUND HINT CHIP === */
.sound-hint {
  position: fixed; bottom: calc(var(--bottom-h) + 14px); left: 50%;
  transform: translateX(-50%);
  z-index: 150; background: var(--bg-card); color: var(--t1);
  border: 2px solid var(--border-c); padding: 8px 16px;
  font-family: var(--f-mono); font-size: 0.65rem; letter-spacing: 0.14em;
  text-transform: uppercase; white-space: nowrap;
  animation: hintPulse 1.6s ease-in-out infinite;
}
@keyframes hintPulse {
  0%, 100% { transform: translateX(-50%) translateY(0); box-shadow: 4px 4px 0 var(--border-c); }
  50% { transform: translateX(-50%) translateY(-4px); box-shadow: 6px 8px 0 var(--border-c); }
}
.sound-hint.gone { animation: none; opacity: 0; transform: translateX(-50%) translateY(8px); transition: all 0.4s; pointer-events: none; }

/* === v7 SCROLL HINT === */
.hero-card { position: relative; }
.hero-card__scroll {
  position: absolute; bottom: 20px; left: 50%;
  font-family: var(--f-mono); font-size: 0.62rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--t3);
  animation: scrollHint 1.9s ease-in-out infinite;
}
@keyframes scrollHint {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.9; }
  50% { transform: translate(-50%, 9px); opacity: 0.35; }
}

/* === v5 RESPONSIVE === */
@media (max-width: 900px) {
  .selector__grid { grid-template-columns: 1fr; }
  .caps { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .tree__kids { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav__cta { display: none; }
  .flow__step { flex-direction: column; gap: 4px; }
  .flow__step b { min-width: 0; }
}
@media (max-width: 480px) {
  .caps { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
}

/* === v13 TOUCH FIX: first tap must act immediately (no hover emulation) === */
a, button, .selector__item, .project-card, .caps__col, .tree__kid,
.form__input, .form__textarea, .form__select { touch-action: manipulation; }
.sound-hint { pointer-events: none; }

@media (hover: none), (hover: on-demand) {
  .project-card:hover { transform: none; box-shadow: none; }
  .project-card:hover::before { opacity: 0; }
  .project-card:hover .project-card__id,
  .project-card:hover .project-card__title,
  .project-card:hover .project-card__desc,
  .project-card:hover .project-card__year,
  .project-card:hover .arrow-link { color: inherit; }
  .project-card:hover .tag { background: var(--tag-bg); color: var(--tag-t); }
  .project-card:hover .project-card__bottom { border-color: var(--border-c); }
  .project-card:hover .project-card__arrow { transform: none; }
  .nav__theme-btn:hover,
  .nav__sound-btn:hover,
  .nav__menu-btn:hover { background: var(--bg); color: var(--t1); }
  .nav__cta:hover { background: var(--t1); color: var(--bg); }
  .menu-overlay__link:hover { padding-left: 0; }
  .caps__col:hover, .tree__kid:hover { transform: none; box-shadow: none; }
  .principle:hover { padding-left: 0; }
  .arrow-link:hover .arr { transform: none; }
  .footer__col a:hover { padding-left: 0; }
  .bottom-bar__btn:hover { background: var(--bg); color: var(--t1); }
}