/* ==========================================================================
   RESPONSIVE DESIGN SYSTEM
   bclarkcodes.dev — Mobile-First, Fast-Loading, Accessible
   ========================================================================== */

/* Medium Desktops & Tablets (<= 1024px) */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .case-studies-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* Tablets & Mobile Devices (<= 768px) */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
    --section-padding-y: 3.5rem;
  }

  /* Top Announcement Bar compact on mobile */
  .top-announcement-bar {
    padding: 6px 10px;
    font-size: 0.72rem;
  }
  .announcement-hide-mobile {
    display: none !important;
  }
  .announcement-inner {
    justify-content: center;
    gap: 8px;
  }

  /* Compact header actions on mobile */
  .header-phone-text {
    display: none !important;
  }
  .header-phone-btn {
    padding: 0;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }
  #nav-cta-call {
    display: none !important;
  }
  .mobile-only-link {
    display: block !important;
  }

  .brand-clark {
    font-size: 1.05rem;
  }
  .brand-codes-pill {
    font-size: 0.7rem;
    padding: 2px 6px;
  }
  .brand-logo-img {
    width: 36px;
    height: 36px;
  }

  .hero-headline {
    font-size: clamp(1.85rem, 7.5vw, 2.75rem);
    line-height: 1.12;
    letter-spacing: -0.025em;
  }

  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--bg-subtle);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--text-primary);
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-surface);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px clamp(16px, 4vw, 32px);
    gap: 16px;
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
  }

  .nav-menu.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    font-size: var(--text-base);
    width: 100%;
    padding: 8px 0;
  }

  .hero-proof-bar {
    gap: 24px;
  }

  .proof-item {
    flex: 1 1 40%;
  }

  .services-scope-note {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Small Smart Phones (<= 480px) */
@media (max-width: 480px) {
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .hero-proof-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .proof-item {
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Additional Mobile Optimization for Astra Modeled Layouts */
@media (max-width: 640px) {
  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 12px;
  }

  .hero-cta-group a {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .astra-cta-actions {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .astra-cta-actions a {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .phone-number-big {
    font-size: 1.25rem;
  }

  .direct-phone-box {
    padding: 16px;
  }
}

/* Responsive Rules for Modern Blog & Single Articles */
@media (max-width: 1024px) {
  .post-layout-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .post-toc-sidebar {
    position: static;
    max-height: none;
    margin-bottom: 32px;
  }
  .blog-bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .post-toc-sidebar {
    display: none;
  }
  .blog-bento-grid {
    grid-template-columns: 1fr;
  }
  .author-bio-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 16px;
  }
  .callout-box {
    flex-direction: column;
    gap: 12px;
  }
  .code-terminal pre {
    padding: 14px;
    font-size: 0.8rem;
  }
}