/* ═══════════════════════════════════════════
   INDEX — Dark theme home page
   Hero (Spline) · What We Do · AIOS ·
   Pillars · Approach · Team · AI Stack
   ═══════════════════════════════════════════ */

/* ── HERO (Spline 3D) ── */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 700px;
  overflow: hidden;
  background: var(--black);
}
.spline-container {
  position: absolute;
  inset: 0;
  z-index: 1;
}
.spline-container spline-viewer {
  width: 100%;
  height: 100%;
  display: block;
}
.spline-container spline-viewer::part(logo) {
  display: none;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(0,0,0,0.3) 0%, transparent 25%),
    linear-gradient(180deg, transparent 70%, rgba(0,0,0,0.5) 100%);
}

/* ── HERO TEXT — emerges from the fluid ── */
.hero-text {
  position: absolute;
  top: 38%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  text-align: center;
  pointer-events: none;
  width: 90%;
  max-width: 960px;
}
.hero-headline {
  font-family: var(--font-ui);
  font-size: clamp(32px, 7vw, 80px);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 20px;
  animation: heroEmerge 2.4s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}
.hero-sub {
  font-family: var(--font-ui);
  font-size: clamp(14px, 2.2vw, 22px);
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.5;
  color: var(--accent);
  animation: heroEmerge 2.4s cubic-bezier(0.16, 1, 0.3, 1) 0.6s both;
}

@keyframes heroEmerge {
  0% {
    opacity: 0;
    transform: scale(0.75);
    filter: blur(12px);
    color: rgba(50, 50, 50, 0);
  }
  40% {
    opacity: 0.6;
    filter: blur(4px);
  }
  100% {
    opacity: 1;
    transform: scale(1);
    filter: blur(0px);
  }
}

/* ── TYPING AREA — bottom-left of hero ── */
.typing-area {
  position: absolute;
  bottom: 48px;
  left: var(--page-pad);
  z-index: 3;
  text-decoration: none;
  display: block;
}
.typing-prefix {
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  white-space: nowrap;
}
.typing-line {
  display: flex;
  align-items: center;
  gap: 0;
  height: 32px;
  opacity: 0;
  transition: opacity 0.5s ease;
}
.typing-line.visible { opacity: 1; }
.typing-line.hidden {
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.prompt-mark {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-right: 8px;
  flex-shrink: 0;
}
.typing-text {
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.85;
  white-space: nowrap;
}
.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 16px;
  background: var(--accent);
  margin-left: 2px;
  animation: blink 0.7s step-end infinite;
  flex-shrink: 0;
}
@keyframes blink {
  50% { opacity: 0; }
}

/* ── SCROLL HINT ── */
.scroll-hint {
  position: absolute;
  bottom: 48px;
  right: var(--page-pad);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 0.8; transform: scaleY(1.15); }
}

/* ── INDUSTRY LIST — stacked right ── */
.industry-row {
  position: absolute;
  bottom: 64px;
  right: var(--page-pad);
  z-index: 2;
  display: flex;
  flex-direction: column-reverse;
  align-items: flex-end;
  gap: 8px;
}
.industry-item {
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  cursor: pointer;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), color 0.2s ease;
  white-space: nowrap;
}
.industry-item:hover { color: var(--white); }
.industry-item.placed {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════
   SECTION SPACING
   ═══════════════════════════════════════════ */
section { padding: 100px 0; position: relative; }
#howwework, #whoweare { padding-top: 60px; }

/* ── ATMOSPHERIC SECTION BACKGROUNDS ── */
.whatwedo::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(255,255,255,0.015) 0%, transparent 70%);
  pointer-events: none;
}
#whoweare::after {
  content: '';
  position: absolute;
  bottom: -100px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,255,255,0.012) 0%, transparent 65%);
  pointer-events: none;
}

/* ── Section label (monospace tag) ── */
.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(217,119,87,0.4), transparent 60%);
  max-width: 120px;
}

/* ═══════════════════════════════════════════
   WHAT WE DO (editorial split) — dark
   ═══════════════════════════════════════════ */
.whatwedo { padding: 100px 0 80px; }
.whatwedo-top {
  max-width: 660px;
  font-size: 26px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--white);
  margin-bottom: 56px;
}
.whatwedo-lower {
  display: flex;
  gap: 40px;
  justify-content: flex-end;
  position: relative;
  padding-top: 48px;
  border-top: 1px solid var(--border-hover);
}
.whatwedo-vline {
  width: 1px;
  background: var(--border-hover);
  flex-shrink: 0;
  align-self: stretch;
  margin-top: -48px;
}
.whatwedo-bottom {
  max-width: 520px;
  font-size: 22px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--body);
}

/* ═══════════════════════════════════════════
   AIOS SECTION — dark glass card
   ═══════════════════════════════════════════ */
.aios-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 72px 56px;
  margin-top: 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.aios-box::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(217,119,87,0.4), transparent);
}
.aios-title {
  font-family: var(--font-ui);
  font-size: clamp(30px, 4.5vw, 46px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--white);
  margin-bottom: 32px;
}
.aios-visuals {
  display: flex;
  gap: 40px;
  justify-content: center;
  align-items: flex-start;
  margin-bottom: 48px;
}
.aios-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  flex: 1;
  max-width: 460px;
}
.aios-img {
  width: 100%;
  height: 320px;
  object-fit: contain;
  border-radius: 16px;
  filter: invert(1) hue-rotate(180deg);
}
.aios-label {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.aios-body {
  font-family: var(--font-ui);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--body);
  max-width: 600px;
  margin: 0 auto;
}
.aios-link {
  display: inline-block;
  margin-top: 28px;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.02em;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(217,119,87,0.3);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.aios-link:hover {
  color: var(--white);
  border-color: var(--white);
}

/* ═══════════════════════════════════════════
   PILLARS TITLE — dark
   ═══════════════════════════════════════════ */
.pillars-title {
  font-family: var(--font-ui);
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--white);
  text-align: center;
  margin-bottom: 56px;
}
.whatwedo .pillars-title { margin-top: 80px; }

/* ═══════════════════════════════════════════
   SERVICES (dark cards)
   ═══════════════════════════════════════════ */
.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px 36px;
  transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease, transform 0.35s var(--ease);
}
.service-card:hover {
  background: var(--surface-hover);
  border-color: var(--border-hover);
  box-shadow: 0 8px 40px rgba(255,255,255,0.02), 0 0 0 1px rgba(255,255,255,0.06);
  transform: translateY(-2px);
}
.service-num {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  opacity: 0.7;
  margin-bottom: 20px;
}
.service-title {
  font-family: var(--font-ui);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--white);
  margin-bottom: 14px;
}
.service-body {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--muted);
}

/* ═══════════════════════════════════════════
   APPROACH — dark framed
   ═══════════════════════════════════════════ */
.approach-frame {
  border: 1px solid var(--border-hover);
  border-radius: 24px;
  background: var(--off);
  padding: 64px 56px 56px;
  position: relative;
  overflow: hidden;
}
.approach-frame::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 160px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}
.approach-intro {
  text-align: center;
  font-size: 17px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--body);
  max-width: 620px;
  margin: 0 auto 48px;
}
.approach-ecosystem-img {
  display: block;
  max-width: 440px;
  margin: 8px auto 24px;
  border-radius: 12px;
  filter: invert(1) hue-rotate(180deg);
}
.approach-diagram {
  max-width: 960px;
  margin: 0 auto 40px;
}
.approach-diagram-img {
  width: 100%;
  height: auto;
  display: block;
}
.approach-subtitle {
  text-align: center;
  font-family: var(--font-ui);
  font-size: 20px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0;
}
#howwework .pillars-title { margin-bottom: 20px; }

/* ── APPROACH STEPS ── */
.approach-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  margin-top: 40px;
}
.approach-steps::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: rgba(217,119,87,0.25);
}
.step {
  text-align: center;
  padding: 0 16px;
  position: relative;
}
.step-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  margin: 0 auto 24px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 4px rgba(217,119,87,0.15);
  transition: box-shadow 0.3s ease;
}
.step:hover .step-dot {
  box-shadow: 0 0 0 6px rgba(217,119,87,0.2), 0 0 20px rgba(217,119,87,0.15);
}
.step-title {
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 8px;
}
.step-body {
  font-size: 12px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--muted);
}

/* ═══════════════════════════════════════════
   TEAM — dark with subtle border
   ═══════════════════════════════════════════ */
.team-frame {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 64px 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.team-frame::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(217,119,87,0.35), transparent);
}
.team-title {
  font-family: var(--font-ui);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 32px;
}
.team-body {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--body);
  margin-bottom: 16px;
}
.team-quote {
  font-family: var(--font-ui);
  font-style: italic;
  font-size: 19px;
  font-weight: 400;
  line-height: 1.55;
  color: rgba(255,255,255,0.8);
  border-left: none;
  padding: 0 32px;
  margin: 36px auto;
  max-width: 680px;
  position: relative;
}
.team-quote::before {
  content: '\201C';
  position: absolute;
  top: -16px;
  left: 0;
  font-family: var(--font-ui);
  font-size: 64px;
  line-height: 1;
  color: rgba(217,119,87,0.2);
}
.team-link {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--body);
  text-decoration: none;
  margin-top: 16px;
  transition: color 0.2s ease;
}
.team-link:hover { color: var(--accent); }
.team-link span {
  border-bottom: 1px solid rgba(255,255,255,0.2);
  padding-bottom: 2px;
  transition: border-color 0.2s ease;
}
.team-link:hover span { border-color: var(--accent); }
.team-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  object-fit: cover;
  object-position: center 15%;
  transition: border-color 0.2s ease, transform 0.3s var(--ease);
}
.team-link:hover .team-avatar {
  border-color: rgba(217,119,87,0.5);
  transform: scale(1.06);
}

/* ═══════════════════════════════════════════
   AI STACK — dark grid
   ═══════════════════════════════════════════ */
.ai-stack {
  background: var(--off);
  border-top: none;
  padding: 100px 0 120px;
  position: relative;
}
.ai-stack::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-hover), transparent);
}
.ai-stack-title {
  font-family: var(--font-ui);
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--white);
  margin-bottom: 56px;
}
.ai-stack-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: 120px;
  border-top: 1px solid var(--border-hover);
  border-left: 1px solid var(--border-hover);
}
.stack-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 24px 12px;
  border-right: 1px solid var(--border-hover);
  border-bottom: 1px solid var(--border-hover);
  background: transparent;
  min-height: 110px;
  transition: background 0.2s ease;
}
.stack-cell:hover { background: rgba(255,255,255,0.03); }
.stack-cell.big {
  grid-column: span 2;
  grid-row: span 2;
  min-height: 230px;
}
.stack-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
  opacity: 0.7;
}
.stack-cell.big .stack-icon {
  width: 52px;
  height: 52px;
}
/* SVG inline icons use currentColor (white) — no filter needed */
.stack-label {
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  text-align: center;
  letter-spacing: 0.02em;
}
.stack-cell.big .stack-label { font-size: 16px; color: var(--body); }

/* Grid placement */
.ai-stack-grid .stack-cell:nth-child(1)  { grid-column: 1/3; grid-row: 1/3; }
.ai-stack-grid .stack-cell:nth-child(2)  { grid-column: 3;   grid-row: 1; }
.ai-stack-grid .stack-cell:nth-child(3)  { grid-column: 4;   grid-row: 1; }
.ai-stack-grid .stack-cell:nth-child(4)  { grid-column: 5/7; grid-row: 1/3; }
.ai-stack-grid .stack-cell:nth-child(5)  { grid-column: 3;   grid-row: 2; }
.ai-stack-grid .stack-cell:nth-child(6)  { grid-column: 4;   grid-row: 2; }
.ai-stack-grid .stack-cell:nth-child(7)  { grid-column: 1;   grid-row: 3; }
.ai-stack-grid .stack-cell:nth-child(8)  { grid-column: 2;   grid-row: 3; }
.ai-stack-grid .stack-cell:nth-child(9)  { grid-column: 3/5; grid-row: 3/5; }
.ai-stack-grid .stack-cell:nth-child(10) { grid-column: 5;   grid-row: 3; }
.ai-stack-grid .stack-cell:nth-child(11) { grid-column: 6;   grid-row: 3; }
.ai-stack-grid .stack-cell:nth-child(12) { grid-column: 1;   grid-row: 4; }
.ai-stack-grid .stack-cell:nth-child(13) { grid-column: 2;   grid-row: 4; }
.ai-stack-grid .stack-cell:nth-child(14) { grid-column: 5;   grid-row: 4; }
.ai-stack-grid .stack-cell:nth-child(15) { grid-column: 6;   grid-row: 4; }
.ai-stack-grid .stack-cell:nth-child(16) { grid-column: 1;   grid-row: 5; }
.ai-stack-grid .stack-cell:nth-child(17) { grid-column: 2;   grid-row: 5; }
.ai-stack-grid .stack-cell:nth-child(18) { grid-column: 3;   grid-row: 5; }
.ai-stack-grid .stack-cell:nth-child(19) { grid-column: 4;   grid-row: 5; }
.ai-stack-grid .stack-cell:nth-child(20) { grid-column: 5;   grid-row: 5; }
.ai-stack-grid .stack-cell:nth-child(21) { grid-column: 6;   grid-row: 5; }
.ai-stack-grid .stack-cell:nth-child(22) { grid-column: 1;   grid-row: 6; }
.ai-stack-grid .stack-cell:nth-child(23) { grid-column: 2;   grid-row: 6; }
.ai-stack-grid .stack-cell:nth-child(24) { grid-column: 3;   grid-row: 6; }
.ai-stack-grid .stack-cell:nth-child(25) { grid-column: 4;   grid-row: 6; }
.ai-stack-grid .stack-cell:nth-child(26) { grid-column: 5;   grid-row: 6; }
.ai-stack-grid .stack-cell:nth-child(27) { grid-column: 6;   grid-row: 6; }

/* ═══════════════════════════════════════════
   FOOTER — dark
   ═══════════════════════════════════════════ */
.footer {
  padding: 48px var(--page-pad);
  border-top: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: var(--page-pad);
  right: var(--page-pad);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-hover), transparent);
}
.footer-left {
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
}
.footer-right a {
  font-size: 13px;
  font-weight: 500;
  color: var(--body);
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-right a:hover { color: var(--white); }

/* ═══════════════════════════════════════════
   RESPONSIVE — index page
   ═══════════════════════════════════════════ */
@media (max-width: 900px) {
  section { padding: 72px 0; }
  #howwework, #whoweare { padding-top: 36px; }
  .services-grid { grid-template-columns: 1fr; }
  .approach-steps { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .approach-steps::before { display: none; }
  .approach-frame { padding: 48px 36px 40px; }
  .team-frame { padding: 48px 36px; }
  .whatwedo-lower { flex-direction: column; gap: 24px; }
  .whatwedo-vline { display: none; }
  .whatwedo-bottom { max-width: 100%; }
  .aios-box { padding: 48px 32px; }
  .aios-visuals { gap: 24px; }
  .aios-body { font-size: 15px; }
  .ai-stack-grid { grid-template-columns: repeat(3, 1fr); }
  .ai-stack-grid .stack-cell,
  .ai-stack-grid .stack-cell:nth-child(n) { grid-column: auto; grid-row: auto; }
  .ai-stack-grid .stack-cell.big,
  .ai-stack-grid .stack-cell.big:nth-child(n) { grid-column: auto; grid-row: auto; min-height: 120px; }
  .stack-cell.big .stack-icon { width: 40px; height: 40px; }
  .stack-cell.big .stack-label { font-size: 13px; }
  .scroll-hint { display: none; }
}
@media (max-width: 480px) {
  section { padding: 56px 0; }
  #howwework, #whoweare { padding-top: 20px; }
  .whatwedo { padding: 56px 0; }
  .whatwedo-top, .whatwedo-bottom { font-size: 20px; }
  .aios-box { padding: 36px 20px; }
  .aios-visuals { flex-direction: column; align-items: center; gap: 32px; }
  .aios-visual { max-width: 100%; }
  .aios-title { font-size: 24px; }
  .aios-body { font-size: 14px; }
  .pillars-title { font-size: 26px; margin-bottom: 32px; }
  .whatwedo .pillars-title { margin-top: 64px; }
  .approach-frame { padding: 32px 20px 28px; }
  .approach-intro { font-size: 15px; margin-bottom: 36px; }
  .approach-subtitle { font-size: 17px; }
  .approach-steps { grid-template-columns: 1fr; }
  .team-frame { padding: 40px 24px; }
  .team-title { font-size: 24px; }
  .ai-stack-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 96px; }
  .ai-stack-grid .stack-cell,
  .ai-stack-grid .stack-cell:nth-child(n) { grid-column: auto; grid-row: auto; }
  .ai-stack-grid .stack-cell.big,
  .ai-stack-grid .stack-cell.big:nth-child(n) { grid-column: auto; grid-row: auto; }
  .ai-stack-title { font-size: 26px; margin-bottom: 32px; }
  .ai-stack { padding: 60px 0 72px; }
  .typing-area { bottom: 40px; }
  .footer { flex-direction: column; gap: 12px; text-align: center; }
}