/* ── Reset & Variables ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {

  /* ── Global Color Tokens ───────────────────────────────────── */
  --bg-dark:     #0C0C0C;
  --bg-light:    #202020;

  --neutral-500: #7D7D7D;
  --neutral-400: #9A9A9A;
  --neutral-300: #B7B7B7;
  --neutral-200: #D7D7D7;
  --neutral-100: #E9E9E9;

  /* ── Border & Accent ───────────────────────────────────────── */
  --border-default: rgba(255,255,255,0.07);
  --border-hover:   rgba(255,255,255,0.18);
  --accent-100:     #FF7D38;
  --accent-200:     #DB7611;
  --accent-300:     #BD660F;
  --accent-400:     #B74401;
  --accent-500:     #923301;

  /* ── Radius ────────────────────────────────────────────────── */
  --radius-l: 100px;
  --radius-m: 8px;
  --radius-s: 4px;

  /* ── Typography ───────────────────────────────────────────── */
  --sans: 'Geist', sans-serif;
  --mono: 'Geist Mono', monospace;

  --thin:      300;
  --regular:   400;
  --medium:    500;
  --semi-bold: 600;

  /* xxl: 32px */
  --type-xxl-size: 2rem;

  /* xl: 24px */
  --type-xl-size:  1.5rem;

  /* l: 20px */
  --type-l-size:   1.25rem;

  /* m: 16px */
  --type-m-size:   1rem;

  /* s: 14px */
  --type-s-size:   0.875rem;

  /* xs: 12px */
  --type-xs-size:  0.75rem;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg-dark);
  color: var(--neutral-200);
  font-family: var(--sans);
  font-size: var(--type-m-size);
  font-weight: var(--regular);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Focus ──────────────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent-300);
  outline-offset: 3px;
  border-radius: var(--radius-s);
}


/* ── Canvas ─────────────────────────────────────────────────── */
#dot-canvas {
  display: block;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}


/* ── Layout ─────────────────────────────────────────────────── */
.container {
  position: relative;
  z-index: 1;
  max-width: 780px;
  margin: 0 auto;
  padding: 0 32px;
}

section { position: relative; z-index: 1; padding: 80px 0; }

/* ── Hero ───────────────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 100px;
  padding-bottom: 120px;
}


.hero-bio {
  max-width: 420px;
  font-size: var(--type-m-size);
  font-weight: var(--regular);
  line-height: 1.6;
  color: var(--neutral-300);
  margin-bottom: 12px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.5s forwards;
}

.hero-highlight {
  color: var(--neutral-100);
  font-weight: var(--medium);
  font-size: var(--type-l-size);
  line-height: 1.6;
  margin: 0 0 12px;
  max-width: 420px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.5s forwards;
}


.wave {
  display: block;
  font-size: 40px;
  line-height: 1;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.3s forwards;
}

.hero-bottom {
  margin-top: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.8s forwards;
}

.hero-links {
  display: flex;
  gap: 24px;
  padding-top: 32px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.8s forwards;
}

.link {
  color: var(--neutral-300);
  text-decoration: none;
  transition: color 0.2s;
}

.link:hover {
  color: var(--neutral-200);
  text-decoration: underline;
}

.hero-scroll {
  display: flex;
}

.scroll-indicator {
  width: 1px;
  height: 56px;
  background: var(--neutral-500);
  animation: scrollDown 2s ease-in-out 1s infinite;
}


/* ── Section Header ─────────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 32px;
  padding-bottom: 20px;
}

.section-title {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--neutral-500);
}


/* ── Experience List ────────────────────────────────────────── */
.exp-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.exp-item {
  display: flex;
  flex-direction: column;
  padding: 0 0 16px;
  border-bottom: 1px solid var(--border-default);
}

.exp-title {
  font-size: var(--type-l-size);
  font-weight: var(--medium);
  color: var(--neutral-100);
  margin-bottom: 4px;
}

.exp-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.meta {
  font-size: var(--type-s-size);
  font-family: var(--mono);
  color: var(--neutral-500);
}

.secondary {
  color: var(--neutral-300);
}

/* ── Interactive Item ───────────────────────────────────────── */
.interactive-item-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.interactive-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 0 16px;
  border-bottom: 1px solid var(--border-default);
  text-decoration: none;
  color: inherit;
  transition: border-bottom-color 0.25s ease;
}

.interactive-item:hover {
  border-bottom-color: var(--border-hover);
}

.interactive-item-main,
.interactive-item-arrow {
  transition: transform 0.25s cubic-bezier(0.2, 0, 0, 1);
  will-change: transform;
}

.interactive-item:hover .interactive-item-main {
  transform: translateX(12px);
}

.interactive-item:hover .interactive-item-arrow {
  transform: translateX(-12px);
}

.interactive-item-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.interactive-item-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.interactive-item-title {
  font-size: var(--type-l-size);
  font-weight: var(--medium);
  color: var(--neutral-100);
}


.interactive-item-info {
  display: flex;
  color: var(--neutral-300);
  align-items: center;
  gap: 4px;
}

.interactive-item-arrow {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  color: var(--neutral-100);
}


/* ── Badge ──────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  line-height: 1;
  font-size: var(--type-xs-size);
  font-family: var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: var(--radius-l);
}

.badge--launched {
  background: #04392E;
  color: #3BFFF5;
}


.badge--testing {
  background: #041939;
  color: #3b95ff;
}

.badge--development {
  background: rgba(66, 133, 244, 0.1);
  color: #6ba3f5;
}


/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scrollDown {
  0%   { opacity: 0;   transform: translateY(-8px); }
  40%  { opacity: 0.5; transform: translateY(0px);  }
  100% { opacity: 0;   transform: translateY(8px);  }
}

/* Reveal: visible by default; JS opts elements into the animation */
.reveal { opacity: 1; transform: none; }
.reveal.will-animate {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.will-animate.visible { opacity: 1; transform: translateY(0); }

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  position: relative;
  z-index: 1;
  padding: 120px 0;
}

.footer-sign {
  color: var(--neutral-500);
  text-align: center;
  margin: 0;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 640px) {
  .container { padding: 0 20px; }
}


/* ── Case Footer ────────────────────────────────────────────── */
.case-footer {
  position: relative;
  z-index: 1;
  padding: 144px 0;
}

.case-footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.case-footer-inner .case-qr {
  align-items: center;
}

.case-footer-text {
  font-size: var(--type-xl-size);
  font-weight: var(--semi-bold);
  color: var(--neutral-100);
}

/* ── Case Study ─────────────────────────────────────────────── */
.case-nav {
  position: fixed;
  top: 32px;
  left: 32px;
  z-index: 10;
}

.case-back {
  display: inline-flex;
  align-items: center;
  font-size: var(--type-s-size);
  font-weight: var(--medium);
  color: var(--neutral-100);
  text-decoration: none;
  background: var(--bg-light);
  padding: 8px 20px;
  border-radius: var(--radius-l);
  transition: background 0.2s;
}

.case-back:hover { background: #2a2a2a; }

.case-hero {
  width: 75%;
  margin: 0 auto 144px;
  overflow: hidden;
  border-radius: var(--radius-m);
  background: var(--bg-light);
}

.case-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.case-intro {
  padding: 144px 0;
}

.case-title {
  font-size: 3rem;
  font-weight: var(--semi-bold);
  color: var(--neutral-100);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.case-columns {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 64px;
  align-items: start;
}

.case-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-body p {
  color: var(--neutral-300);
  line-height: 1.7;
}

.case-metadata {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 4px;
}

.meta-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-default);
}

.meta-label {
  font-family: var(--mono);
  font-size: var(--type-xs-size);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--neutral-500);
}

.meta-value {
  font-size: var(--type-s-size);
  color: var(--neutral-200);
}

.case-qr {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.qr-placeholder {
  width: 88px;
  height: 88px;
  padding: 4px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-s);
  color: var(--neutral-300);
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-store-link {
  font-family: var(--mono);
  font-size: var(--type-xs-size);
  letter-spacing: 0.04em;
  color: var(--neutral-500);
  text-decoration: none;
  transition: color 0.2s;
}

.case-store-link:hover { color: var(--neutral-200); }

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

.card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-right: 32px;
}

.card + .card {
  padding-right: 0;
  padding-left: 32px;
  border-left: 1px solid var(--border-default);
}

.card-title {
  font-size: var(--type-l-size);
  font-weight: var(--medium);
  color: var(--neutral-100);
  line-height: 1.3;
}

.card-body-label {
  font-weight: var(--medium);
  color: var(--neutral-100);
}

.card-body {
  color: var(--neutral-300);
  line-height: 1.7;
}

@media (max-width: 640px) {
  .card-grid { grid-template-columns: 1fr; }
  .card + .card {
    padding-left: 0;
    border-left: none;
    padding-top: 24px;
    border-top: 1px solid var(--border-default);
  }
}

.case-columns-image {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 152px;
}

.case-columns-image:last-child { margin-bottom: 0; }

.case-xl-title {
  font-size: var(--type-xl-size);
  font-weight: var(--semi-bold);
  color: var(--neutral-100);
  margin-bottom: 12px;
}

.case-xl-intro {
  color: var(--neutral-300);
  line-height: 1.7;
  margin-bottom: 48px;
}

.game-mode {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 48px;
}

.game-mode:last-child { margin-bottom: 0; }

.game-mode-title {
  font-weight: var(--medium);
  color: var(--neutral-400);
  letter-spacing: 0.04em;
}

.game-mode-images {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-inline: -112px;
}

.game-mode-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.game-mode-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-m);
  background: var(--bg-light);
}

.game-mode-caption {
  font-size: var(--type-xs-size);
  color: var(--neutral-500);
  line-height: 1.5;
}

@media (max-width: 640px) {
  .game-mode-images {
    grid-template-columns: 1fr;
    margin-inline: 0;
  }
}

.case-columns-image--reversed {
  direction: rtl;
}

.case-columns-image--reversed > * {
  direction: ltr;
}

.case-inline-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-m);
}

.case-columns-image-right {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (max-width: 640px) {
  .case-columns-image { grid-template-columns: 1fr; }
}

.case-feature-image {
  display: flex;
  justify-content: center;
  padding: 0 32px;
  margin: 0 0 144px;
}

.case-feature-image img {
  max-width: 780px;
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-m);
}

.case-section {
  padding: 0 0 144px;
}

.case-section-title {
  font-size: var(--type-xxl-size);
  font-weight: var(--semi-bold);
  color: var(--neutral-100);
  margin-bottom: 40px;
}

@media (max-width: 640px) {
  .case-columns {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .case-title { font-size: 2.25rem; }
}