html, body {
  margin: 0;
  background: var(--ink-900);
}
* {
  box-sizing: border-box;
}
::selection {
  background: var(--blue-tint);
  color: var(--fg-1);
}
body {
  min-height: 100vh;
  color: var(--fg-2);
  font-family: var(--font-sans);
}
a {
  color: inherit;
}
button {
  font: inherit;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== HEADER ===== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 48px;
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(8, 9, 12, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  color: inherit;
  text-decoration: none;
}
.brand-name {
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--fg-1);
}
.brand-dot {
  color: var(--blue-400);
}
.brand-role {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--fg-3);
  display: inline;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  position: relative;
}
.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 12px;
  margin: -12px;
  color: var(--fg-2);
}
.burger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 18px 12px;
  margin: -18px -12px;
}
.burger-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--fg-1);
  border-radius: 1px;
}
.lang-menu {
  position: absolute;
  top: 100%;
  right: 40px;
  margin-top: 8px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
  display: none;
  flex-direction: column;
  min-width: 140px;
  padding: 4px;
  z-index: 41;
}
.lang-menu.open {
  display: flex;
}
.lang-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px 14px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--fg-2);
  border-radius: var(--r-sm);
}
.lang-option.active {
  color: var(--fg-1);
}
.lang-option .check {
  color: var(--blue-400);
}

/* ===== NAV OVERLAY / PANEL ===== */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 5, 7, 0.6);
  z-index: 39;
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms var(--ease);
}
.nav-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.nav-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 420px;
  background: var(--ink-850);
  border-left: 1px solid var(--line);
  z-index: 40;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 260ms var(--ease);
  box-shadow: var(--shadow-lg);
}
.nav-panel.open {
  transform: translateX(0);
}
.nav-panel-head {
  display: flex;
  justify-content: flex-end;
  padding: 32px 40px 0;
}
.nav-close {
  background: none;
  border: none;
  color: var(--fg-3);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  padding: 6px;
}
.nav-items {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 24px 48px;
  flex: 1;
}
.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 28px;
  letter-spacing: -0.01em;
  color: var(--fg-2);
  text-decoration: none;
}
.nav-item.active {
  color: var(--fg-1);
}
.nav-item.soon {
  color: var(--fg-4);
  cursor: default;
  opacity: 0.6;
}
.soon-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-4);
  border: 1px solid var(--line-2);
  border-radius: var(--r-pill);
  padding: 3px 9px;
}
.nav-footer {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fg-4);
  padding: 20px 48px 32px;
  border-top: 1px solid var(--line);
}

/* ===== MAIN / SECTIONS ===== */
.page {
  flex: 1;
  max-width: 1040px;
  margin: 0 auto;
  width: 100%;
  padding: 0 48px 40px;
  display: flex;
  flex-direction: column;
  gap: 96px;
}
.block {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-top: 56px;
  border-top: 1px solid var(--line);
}
.page-head {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 64px;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--blue-400);
}

/* ===== HERO ===== */
.hero {
  display: flex;
  flex-direction: column;
  gap: 40px;
  padding-top: 64px;
}
.hero-intro {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 640px;
}
.hero-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 32px;
}
.photo {
  width: 108px;
  height: 108px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--line-2);
  box-shadow: var(--ring-top);
  flex-shrink: 0;
}
.hero-title {
  margin: 0;
  font-weight: 600;
  font-size: 52px;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--fg-1);
}
.hero-body {
  margin: 0;
  font-size: 18px;
  line-height: 1.6;
  color: var(--fg-2);
  max-width: 52ch;
}
h1.page-title {
  margin: 0;
  font-weight: 600;
  font-size: 48px;
  letter-spacing: -0.02em;
  color: var(--fg-1);
}
.page-intro {
  margin: 0;
  font-size: 18px;
  line-height: 1.6;
  color: var(--fg-2);
  max-width: 60ch;
}

/* ===== GRIDS / CARDS ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 22px;
  cursor: pointer;
  text-decoration: none;
}
.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-title {
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--fg-1);
}
.card-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--fg-3);
}
.card-cta {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--blue-400);
}

.blog-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--ink-800);
  border: 1px dashed var(--line-2);
  border-radius: var(--r-lg);
  padding: 32px 36px;
}
.blog-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fg-4);
  text-transform: uppercase;
}
.blog-heading {
  margin: 0;
  font-weight: 600;
  font-size: 22px;
  color: var(--fg-1);
}
.blog-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg-3);
  max-width: 56ch;
}
.text-link {
  align-self: flex-start;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--blue-400);
  text-decoration: none;
}
.archive-btn {
  width: 100%;
  background: var(--ink-800);
  border: 1px solid var(--line);
  cursor: pointer;
  text-align: left;
}

.pub-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-decoration: none;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px 26px;
}
.pub-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fg-3);
}
.pub-title {
  margin: 0;
  font-weight: 600;
  font-size: 20px;
  line-height: 1.35;
  color: var(--fg-1);
}
.pub-title.small {
  font-size: 19px;
}
.pub-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--fg-2);
}

.pub-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ===== ABOUT ===== */
.about-body {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 40px;
}
.about-photo {
  width: 220px;
  height: 220px;
  border-radius: var(--r-xl);
  object-fit: cover;
  border: 1px solid var(--line-2);
  box-shadow: var(--shadow-md);
  flex-shrink: 0;
}
.about-copy {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 60ch;
}
.about-copy p {
  margin: 0;
  font-size: 18px;
  line-height: 1.65;
  color: var(--fg-2);
}

/* ===== CONTACT ===== */
.contact-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px 32px;
}
.contact-cols {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.contact-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fg-3);
  text-transform: uppercase;
}
.contact-email {
  font-size: 18px;
  color: var(--blue-400);
  text-decoration: none;
}
.contact-line {
  font-size: 15px;
  line-height: 1.5;
  color: var(--fg-2);
  max-width: 40ch;
}
.qr-box {
  width: 160px;
  height: 160px;
  flex-shrink: 0;
  background: #fff;
  border-radius: var(--r-md);
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.qr-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ===== TRIVIA ===== */
.trivia-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: var(--blue-tint);
  border: 1px solid var(--blue-line);
  border-radius: var(--r-lg);
  padding: 36px 40px;
}
.trivia-fact {
  margin: 0;
  font-size: 22px;
  line-height: 1.5;
  color: var(--fg-1);
  font-weight: 500;
  max-width: 56ch;
}
.trivia-btn {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--blue-500);
  color: #fff;
  border: none;
  border-radius: var(--r-md);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}

/* ===== EBISU ===== */
.ebisu-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 20px 22px;
}
.ebisu-card-title {
  margin: 0;
  font-weight: 600;
  font-size: 19px;
  color: var(--fg-1);
}
.ebisu-card-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--fg-2);
}
.ebisu-price-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fg-3);
  text-transform: uppercase;
}
.ebisu-price-value {
  font-weight: 600;
  font-size: 22px;
  color: var(--fg-1);
}
.ebisu-instructor-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 28px;
}
.ebisu-tagline {
  margin: 0;
  font-size: 18px;
  line-height: 1.6;
  color: var(--fg-2);
  max-width: 56ch;
}
.ebisu-hook {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--blue-400);
}
.ebisu-instructor-body {
  margin: 0;
  font-size: 17px;
  line-height: 1.6;
  color: var(--fg-2);
  max-width: 56ch;
}

/* ===== FOOTER ===== */
.site-footer {
  display: flex;
  flex-direction: row;
  gap: 8px;
  justify-content: space-between;
  padding: 28px 48px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-4);
}
.footer-right {
  letter-spacing: 0.04em;
}

/* ============================================================================
   MOBILE  (<760px, matches the design's isMobile breakpoint)
   ============================================================================ */
@media (max-width: 759px) {
  .site-header { padding: 18px 20px; }
  .brand-role { display: none; }
  .nav-panel { width: 100%; }
  .nav-panel-head { padding: 20px 20px 0; }
  .nav-items { padding: 24px 28px; }
  .nav-item { padding: 16px 4px; font-size: 24px; }
  .nav-footer { padding: 20px 28px 28px; }

  .page { padding: 0 20px 40px; gap: 56px; }
  .block { padding-top: 40px; gap: 20px; }
  .page-head { padding-top: 40px; }

  .hero { gap: 28px; padding-top: 32px; }
  .hero-row { flex-direction: column; align-items: flex-start; gap: 20px; }
  .photo { width: 84px; height: 84px; }
  .hero-title { font-size: 36px; }
  .hero-body { font-size: 16px; }
  h1.page-title { font-size: 32px; }

  .grid { grid-template-columns: 1fr; gap: 14px; }

  .about-body { flex-direction: column; gap: 24px; }
  .about-photo { width: 140px; height: 140px; }

  .contact-row { flex-direction: column; align-items: flex-start; padding: 22px; }

  .blog-card { padding: 24px 22px; }
  .trivia-card { padding: 26px 22px; }

  .ebisu-instructor-row { flex-direction: column; align-items: flex-start; gap: 18px; }

  .site-footer { flex-direction: column; padding: 28px 20px; }
}