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

:root {
  --bg:          #191917;
  --sound:       #5a5855;
  --co:          #e8e4db;
  --consulting:  #c08828;
  --courses:     #be3b20;
  --collab:      #38806a;
  --ltd:         #333230;
  --text:        #9a9690;
  --muted:       #4a4845;
  --border:      #282622;
}

html {
  background: var(--bg);
  color: var(--co);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

/* ─── HERO ─────────────────────────────────────────────────── */

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(2.5rem, 5vw, 4.5rem) clamp(1.5rem, 5vw, 5rem);
}

.hero.is-expanded {
  justify-content: flex-start;
  flex: none;
}

.wordmark {
  display: flex;
  flex-direction: column;
  gap: clamp(0.05rem, 0.6vw, 0.7rem);
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
}

.row {
  display: flex;
  align-items: baseline;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: clamp(1.5rem, 5vw, 5.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.025em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(12px);
  animation: fadeUp 0.5s ease forwards;
}

.r1 { animation-delay: 0.05s; }
.r2 { animation-delay: 0.15s; }
.r3 { animation-delay: 0.25s; }
.r4 { animation-delay: 0.35s; }

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

.sound { color: var(--sound); transition: opacity 0.15s ease; }
.co    { color: var(--co);    transition: opacity 0.15s ease; }

.suffix { transition: opacity 0.15s ease; }
.suffix.consulting { color: var(--consulting); }
.suffix.courses    { color: var(--courses); }
.suffix.collab     { color: var(--collab); }
.suffix.ltd        { color: var(--ltd); }

/* ─── ENTRY ──────────────────────────────────────────────────── */

.entry {
  display: flex;
  flex-direction: column;
}

.row[role="button"] {
  cursor: pointer;
  user-select: none;
}

.row[role="button"]:hover .sound,
.row[role="button"]:hover .co,
.row[role="button"]:hover .suffix {
  opacity: 0.6;
}

.panel { display: none; }

/* ─── EXPANDED VIEW ──────────────────────────────────────────── */

#expanded {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  order: -1;
}

.exp-footer {
  display: flex;
  justify-content: center;
  padding-top: 1rem;
}

.exp-close {
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 1rem;
  line-height: 1;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.exp-close:hover {
  color: var(--co);
  border-color: var(--co);
}

.exp-heading {
  display: flex;
  align-items: baseline;
  font-size: clamp(1.5rem, 5vw, 5.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.025em;
  text-transform: uppercase;
  cursor: pointer;
  user-select: none;
}

.exp-heading:hover .sound,
.exp-heading:hover .co,
.exp-heading:hover .suffix {
  opacity: 0.6;
}

.exp-below {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}

.exp-below.open {
  grid-template-rows: 1fr;
}

.exp-below-inner {
  overflow: hidden;
  min-height: 0;
}

.exp-below-content {
  padding: clamp(1.5rem, 3vw, 2.5rem) 0 clamp(2rem, 4vw, 3.5rem) clamp(1rem, 2vw, 1.5rem);
  border-left: 2px solid;
  min-height: 22vh;
  max-width: 540px;
}

#expanded[data-service="consulting"] .exp-below-content { border-color: var(--consulting); }
#expanded[data-service="courses"]    .exp-below-content { border-color: var(--courses); }
#expanded[data-service="collab"]     .exp-below-content { border-color: var(--collab); }
#expanded[data-service="ltd"]        .exp-below-content { border-color: var(--co); }

.exp-below-content p {
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  color: var(--text);
  line-height: 1.75;
}

.exp-below-content p + p {
  margin-top: 1rem;
}

.course-item + .course-item {
  margin-top: 1.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
}

.course-name {
  font-size: clamp(0.85rem, 1.3vw, 1rem);
  font-weight: 500;
  color: var(--co);
  letter-spacing: 0.03em;
  margin-bottom: 0.2rem;
}

.course-tagline {
  font-style: italic;
  margin-bottom: 0.5rem;
}

/* ─── INFO ──────────────────────────────────────────────────── */

.info {
  border-top: 1px solid var(--border);
  padding: clamp(2.5rem, 5vw, 5rem) clamp(1.5rem, 5vw, 5rem);
}

.info-inner {
  display: flex;
  gap: clamp(2.5rem, 6vw, 7rem);
  flex-wrap: wrap;
  max-width: 960px;
  margin: 0 auto;
}

.info-block {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.label {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

.info-block p {
  font-size: clamp(0.85rem, 1.4vw, 1rem);
  color: var(--text);
  line-height: 1.6;
}

.info-block a {
  font-size: clamp(0.85rem, 1.4vw, 1rem);
  color: var(--text);
  text-decoration: none;
  line-height: 1.6;
  transition: color 0.15s ease;
}

.info-block a:hover {
  color: var(--co);
}

/* ─── FOOTER ────────────────────────────────────────────────── */

footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem clamp(1.5rem, 5vw, 5rem);
}

footer p {
  font-size: 0.7rem;
  letter-spacing: 0.07em;
  color: var(--muted);
  max-width: 960px;
  margin: 0 auto;
}

/* ─── MOBILE ────────────────────────────────────────────────── */

@media (max-width: 480px) {
  .hero {
    padding: 2rem 1rem;
  }

  .row,
  .exp-heading {
    font-size: clamp(1rem, 8.5vw, 2.2rem);
  }

  .info-inner {
    flex-direction: column;
    gap: 1.75rem;
  }

  .info,
  footer {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}