/* ============================================================
   tGS Creative Works — Responsive CSS
   Companion to style.css — breakpoints and content-visibility
   ============================================================ */

/* Performance: content-visibility for off-screen sections */
.hero-copy,
.section-head,
.split-copy,
.service-meta,
.contact-card,
.case-panel,
.post-card,
.brand-card,
.value-card,
.info-card {
  content-visibility: auto;
  contain-intrinsic-size: 1px 500px;
}

/* ============================================================
   LARGE — min-width: 1200px
   ============================================================ */
@media (min-width: 1200px) {
  .hero-inner {
    min-height: 68vh;
  }
}

/* ============================================================
   TABLET — max-width: 980px
   ============================================================ */
@media (max-width: 980px) {
  .hero-inner,
  .service-top,
  .newsletter,
  .cards-2,
  .work-grid,
  .contact-grid,
  .dual-grid,
  .brand-grid,
  .service-grid,
  .footer-grid,
  .posts-grid,
  .values-grid,
  .cards-3,
  .manifesto-grid,
  .metrics-grid,
  .case-results,
  .form-grid .two,
  .practice-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    gap: var(--space-8);
  }

  .cta-band {
    flex-direction: column;
    align-items: flex-start;
  }

  .work-grid {
    gap: var(--space-8);
  }

  .cards-3 {
    gap: var(--space-6);
  }

  .hero-card {
    margin-top: var(--space-8);
  }
}

/* ============================================================
   MOBILE — max-width: 760px
   ============================================================ */
@media (max-width: 760px) {
  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.75rem);
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
    z-index: 50;
  }

  .main-nav.is-open {
    display: flex;
  }

  .nav-row {
    margin-left: auto;
  }

  .hide-mobile {
    display: none;
  }

  h1 {
    font-size: clamp(2.5rem, 11vw, 4rem);
  }

  .hero-card,
  .card,
  .panel,
  .case-panel,
  .contact-card,
  .post-card,
  .brand-card,
  .service-block,
  .manifesto-item,
  .newsletter,
  .quote-panel,
  .info-card,
  .callout,
  .season-card,
  .practice-card {
    padding: var(--space-5);
  }

  .newsletter-form {
    grid-template-columns: 1fr;
  }

  .seasons-grid {
    grid-template-columns: 1fr;
  }

  .section-head {
    text-align: left;
  }

  .divider {
    margin-left: 0;
  }

  .metric-number {
    font-size: clamp(2.5rem, 10vw, 3.5rem);
  }

  .footer-base {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
}

/* ============================================================
   SMALL MOBILE — max-width: 540px
   ============================================================ */
@media (max-width: 540px) {
  .btn-row {
    width: 100%;
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .stat-grid {
    grid-template-columns: 1fr;
  }

  .nav-shell {
    min-height: 72px;
  }

  .tag-row {
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

  .hero-copy h1 {
    font-size: clamp(2.2rem, 12vw, 3rem);
  }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================
   SOCIAL FLOAT BUTTON
   ============================================================ */
.social-float {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  z-index: 100;
}

.social-float a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-full);
  background: var(--color-depth);
  color: #fff;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), background var(--transition);
}

.social-float a:hover {
  transform: translateY(-3px);
  background: var(--color-primary);
}

.social-float a.instagram:hover {
  background: #E1306C;
}

.social-float a.youtube:hover {
  background: #FF0000;
}

@media (max-width: 540px) {
  .social-float {
    bottom: var(--space-4);
    right: var(--space-4);
  }

  .social-float a {
    width: 42px;
    height: 42px;
  }
}