/* ============================================
   Safe&Sound Robotics — A1AN Web
   Responsive Breakpoints
   ============================================ */

/* --- Tablet: <= 1024px --- */
@media (max-width: 1024px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }

  .hero-inner {
    gap: var(--spacing-8);
  }

  .hero-robot-container {
    width: 300px;
    height: 300px;
  }

  .hero-robot-logo {
    width: 120px;
    height: 120px;
  }

  .about-grid {
    gap: var(--spacing-8);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-8);
  }

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

  /* Dashboard */
  .dashboard-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    grid-column: 1;
  }

  .topbar-toggle {
    display: block;
  }

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

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

  .schedule-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --- Mobile: <= 768px --- */
@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
    --header-height: 64px;
  }

  /* Header */
  .header-nav,
  .header-actions {
    display: none;
  }

  .header-nav.open,
  .header-actions.open {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

  .header-nav.open {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-4) var(--spacing-6);
    box-shadow: var(--shadow-lg);
    gap: var(--spacing-4);
  }

  .header-actions.open {
    position: absolute;
    top: calc(var(--header-height) + 200px);
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: 0 var(--spacing-6) var(--spacing-4);
    box-shadow: var(--shadow-lg);
    gap: var(--spacing-3);
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding: calc(var(--header-height) + var(--spacing-10)) 0 var(--spacing-10);
  }

  .hero-inner {
    flex-direction: column;
    text-align: center;
  }

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

  .hero-label {
    margin: 0 auto var(--spacing-4);
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .hero-robot-container {
    width: 220px;
    height: 220px;
  }

  .hero-robot-logo {
    width: 90px;
    height: 90px;
  }

  .hero-stats {
    justify-content: center;
    gap: var(--spacing-6);
    flex-wrap: wrap;
  }

  /* Sections */
  .section {
    padding: var(--spacing-12) 0;
  }

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

  .about-content {
    padding-left: var(--spacing-6);
  }

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

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

  .steps-container {
    padding-left: var(--spacing-2);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
  }

  /* Dashboard */
  .page-content {
    padding: var(--spacing-4);
  }

  .topbar {
    padding: var(--spacing-3) var(--spacing-4);
  }

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

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

  .robot-status-grid {
    grid-template-columns: 1fr;
  }

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

  .schedule-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .quick-actions {
    flex-direction: column;
  }

  .quick-actions .btn {
    width: 100%;
  }

  .notification-filters {
    width: 100%;
    overflow-x: auto;
  }

  /* Auth */
  .auth-card {
    padding: var(--spacing-6);
  }

  .auth-row {
    grid-template-columns: 1fr;
  }

  .robot-link-card {
    padding: var(--spacing-6);
  }
}

/* --- Small: <= 480px --- */
@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.75rem;
    --font-size-3xl: 1.35rem;
  }

  .container {
    padding: 0 var(--spacing-4);
  }

  .btn {
    padding: 0.6rem 1.25rem;
    font-size: var(--font-size-xs);
  }

  .btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-sm);
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-3);
  }

  .auth-card {
    padding: var(--spacing-5);
  }

  .auth-logo img {
    height: 40px;
  }

  .widget {
    padding: var(--spacing-4);
  }

  .modal {
    margin: var(--spacing-4);
  }

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

  .data-table th,
  .data-table td {
    padding: 0.6rem var(--spacing-3);
    font-size: var(--font-size-xs);
  }
}