/* ========================================
   ARCADE LANDING PAGE — OpenAI-inspired
   ======================================== */

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

body {
  background: #000000;
  color: #e0e0e0;
  font-family: 'Söhne', 'Inter', -apple-system, 'Segoe UI', 'Helvetica Neue', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

/* ---- HERO ---- */
.arcade-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 1.5rem;
  background: #000;
}

.arcade-hero-content {
  max-width: 680px;
  width: 100%;
}

.arcade-date {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 0.25rem;
  font-weight: 400;
}

.arcade-label {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 2.5rem;
}

.arcade-title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.08;
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
}

.arcade-subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.35rem);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
  font-weight: 300;
  max-width: 580px;
}

/* ---- DIVIDER ---- */
.arcade-divider {
  max-width: 680px;
  margin: 0 auto;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
}

/* ---- SECTIONS ---- */
.arcade-section {
  padding: 5rem 1.5rem;
}

.arcade-section-alt {
  background: #0a0a0a;
}

.arcade-container {
  max-width: 680px;
  margin: 0 auto;
}

.arcade-overline {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.arcade-section-title {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}

.arcade-section-subtitle {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 3rem;
  font-weight: 300;
}

.arcade-section-body {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.8;
  font-weight: 300;
}

.arcade-section-body strong {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
}

/* ---- 4 CEROS GRID ---- */
.arcade-zeros-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.arcade-zero-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  transition: border-color 0.3s ease;
}

.arcade-zero-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.arcade-zero-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1;
  margin-bottom: 0.25rem;
  font-variant-numeric: tabular-nums;
}

.arcade-zero-label {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.75rem;
}

.arcade-zero-desc {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.4);
  line-height: 1.5;
  font-weight: 300;
}

/* ---- FEATURES LIST ---- */
.arcade-features-list {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.arcade-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.arcade-feature-item ion-icon {
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.5);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.arcade-feature-item h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 0.35rem;
}

.arcade-feature-item p {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.6;
  font-weight: 300;
}

/* ---- CHAT TAGS ---- */
.arcade-chat-tags {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.arcade-tag {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  transition: border-color 0.3s ease, color 0.3s ease;
}

.arcade-tag:hover {
  color: rgba(255, 255, 255, 0.85);
  border-color: rgba(255, 255, 255, 0.2);
}

/* ---- CTA SECTION ---- */
.arcade-cta-section {
  padding: 6rem 1.5rem;
  background: #000;
}

.arcade-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  padding: 0.85rem 2rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 100px;
  transition: all 0.3s ease;
}

.arcade-back-link:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.05);
}

.arcade-back-link ion-icon {
  font-size: 1.15rem;
}

/* ---- FOOTER ---- */
.arcade-footer {
  padding: 3rem 1.5rem;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.arcade-footer p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.25);
  font-weight: 300;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 640px) {
  .arcade-hero {
    min-height: auto;
    padding: 5rem 1.25rem 3rem;
  }

  .arcade-section {
    padding: 3.5rem 1.25rem;
  }

  .arcade-zeros-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .arcade-zero-card {
    padding: 1.5rem 1.25rem;
  }

  .arcade-zero-number {
    font-size: 2rem;
  }

  .arcade-cta-section {
    padding: 4rem 1.25rem;
  }
}