/* Header styles - Premium hero section */
.header {
  background: linear-gradient(170deg, #D6E8FF 0%, #E8F1FF 40%, #FFFFFF 100%);
  color: var(--text-color);
  padding: 3rem 1.5rem 3.5rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-height: 440px;
  justify-content: center;
  gap: 0.6rem;
}

/* Hero Section */
.hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.hero-text-subtitle-en {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 22px;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-text-10x {
  height: 90px;
}

.hero-text-workshop {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 28px;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
  line-height: 1.15;
}

/* Separator between subtitle and philosophy */
.hero-separator {
  width: 64px;
  max-width: 1280px;
  height: 2px;
  background: var(--border-default);
  margin: 2rem 0;
}

/* Philosophy text */
.hero-philosophy {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 20px;
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.45;
  text-align: center;
}

.nav-items:first-child span.nav-label {
  position: relative;
  top: 2px;
}

/* ── Tablet (768px - 1024px) ─────────────────────── */

@media (max-width: 1024px) {
  .header {
    min-height: 340px;
    padding: 2rem 1.5rem 2.5rem;
  }

  .hero-text-subtitle-en {
    font-size: 18px;
  }

  .hero-text-10x {
    height: 68px;
  }

  .hero-text-workshop {
    font-size: 22px;
  }

  .hero-philosophy {
    font-size: 17px;
    max-width: 560px;
  }

  .hero-separator {
    margin: 1.25rem 0;
  }
}

/* ── Phone (< 768px) ────────────────────────────── */

@media (max-width: 767px) {
  .header {
    min-height: auto;
    padding: 1.75rem 1.25rem 2rem;
    gap: 0.35rem;
  }

  .hero-text-subtitle-en {
    font-size: 14px;
    letter-spacing: 0.06em;
  }

  .hero-text-10x {
    height: 52px;
  }

  .hero-text-workshop {
    font-size: 17px;
    line-height: 1.25;
  }

  .hero-separator {
    width: 40px;
    margin: 1rem 0;
  }

  .hero-philosophy {
    font-size: 17px;
    max-width: 100%;
    line-height: 1.5;
  }
}