/* ========== PC (1024px+): hide mobile menu button, show nav ========== */
@media (min-width: 1024px) {
  .header-menu-btn {
    display: none !important;
  }
}

/* ========== Below 1280px - adjust hero ========== */
@media (max-width: 1279px) {
  .hero-container {
    gap: var(--space-8);
  }
}

/* ========== Below 1024px - tablet ========== */
@media (max-width: 1023px) {
  :root {
    --header-offset: 20px;
  }

  /* Hide persistent nav, rely on overlay */
  .header-nav {
    display: none !important;
  }

  .header-top-btn {
    width: 44px;
    height: 44px;
  }

  .header-menu-btn {
    padding: 10px var(--space-5);
    font-size: var(--text-xs);
  }

  /* Hero: stack content above visual, keep canvas full-width */
  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--space-10);
    padding-top: var(--space-16);
  }

  .hero-visual {
    display: none;
  }

  .hero-title {
    font-size: clamp(2.8rem, 2rem + 4vw, 4.5rem);
  }

  /* News list: stacked meta on small tablet */
  .news-item {
    grid-template-columns: 110px 100px 1fr 20px;
    gap: var(--space-4);
    padding: var(--space-5) var(--space-3);
  }

  /* Contact 2-col → stack */
  .contact-layout {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  /* Teaser 2-col → stack */
  .teaser-layout {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  /* Company 2-col → stack */
  .company-layout {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
  .company-offices {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .company-office-card {
    flex: 1 1 260px;
  }

  .join-marquee {
    grid-template-columns: repeat(3, 1fr);
    height: clamp(460px, 64vh, 700px);
  }
  .join-marquee-col--d {
    display: none;
  }

  /* About blocks stack */
  .about-block {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    padding: var(--space-12) 0;
  }
  .about-block-label {
    position: static;
    flex-direction: row;
    align-items: center;
    gap: var(--space-4);
  }
  .about-message-layout {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .about-message-aside {
    position: static;
    max-width: 360px;
    margin: 0 auto;
  }
  .about-message-photo-wrap {
    max-width: 320px;
    margin: 0 auto;
  }
  .about-message-caption {
    text-align: center;
  }
  .about-message-name {
    justify-content: center;
  }
  .about-message-lead {
    padding-left: var(--space-4);
    margin-bottom: var(--space-6);
  }
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Case study grid → 1 col wide, still 2 on tablet */
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Recruit grid → stack */
  .recruit-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  /* Hero: stack content above visual */
  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--space-10);
    padding-top: var(--space-12);
  }
  .hero-visual {
    order: -1;
  }
  .hero-spin {
    width: clamp(220px, 50vw, 360px);
  }

  /* Service grid: 2 cols on tablet */
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Company table responsive */
  .company-table th {
    width: 140px;
  }

  /* Contact stacked */
  .contact-inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    text-align: left;
  }

  /* Footer: 2-col grid, brand spans full */
  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-10);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* ========== Below 768px - mobile ========== */
@media (max-width: 767px) {
  :root {
    --header-offset: 16px;
  }

  .section-logo-marquee {
    padding: var(--space-3) 0 var(--space-6);
  }
  .logo-marquee-item {
    height: 44px;
  }
  .logo-marquee-item img {
    max-width: 170px;
  }

  .section-hero {
    padding: 100px 0 60px;
  }

  .hero-title {
    font-size: clamp(2.5rem, 2rem + 4vw, 3.5rem);
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  /* Service grid: single column */
  .service-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

  /* Case grid: single column */
  .case-grid {
    grid-template-columns: 1fr;
  }

  /* Value grid: single column */
  .value-grid {
    grid-template-columns: 1fr;
  }

  /* About block padding tighter */
  .about-block {
    padding: var(--space-10) 0;
  }

  /* Recruit card padding tighter */
  .recruit-card {
    padding: var(--space-10) var(--space-6);
  }

  /* News list: compact grid on mobile */
  .news-item {
    grid-template-columns: 90px 80px 1fr;
    grid-template-rows: auto;
    gap: var(--space-3);
    padding: var(--space-4) 0;
  }
  .news-item::after {
    display: none;
  }
  .news-date,
  .news-category {
    font-size: 0.7rem;
  }
  .news-title {
    grid-column: 1 / -1;
    font-size: var(--text-sm);
  }

  /* Contact form padding tighter */
  .contact-form {
    padding: var(--space-8) var(--space-6) var(--space-10);
  }
  .contact-form-row--split {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }

  .join-marquee {
    grid-template-columns: repeat(2, 1fr);
    height: clamp(420px, 70vh, 620px);
  }
  .join-marquee-col--c,
  .join-marquee-col--d {
    display: none;
  }
  .join-marquee-col--a .join-marquee-track {
    animation-duration: 26s;
  }
  .join-marquee-col--b .join-marquee-track {
    animation-duration: 30s;
  }

  /* Company table mobile */
  .company-table,
  .company-table tbody,
  .company-table tr,
  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
  }
  .company-table th {
    padding-bottom: 0;
    width: 100%;
    border-radius: 0;
  }
  .company-table td {
    padding-top: var(--space-2);
  }

  /* Footer: single column */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

/* ========== Large desktop ========== */
@media (min-width: 1440px) {
  :root {
    --container-max: 1200px;
  }
}