/* ============================================================
   SwiftCalculators.net — Responsive / Mobile Styles
   Strategy: Desktop-first, then break down for smaller screens
   Breakpoints:
     - Large desktop: 1280px+
     - Desktop:       1024px
     - Tablet:        768px
     - Mobile:        480px
     - Small mobile:  360px
   ============================================================ */

/* ============================================================
   1024px — DESKTOP (Small)
   ============================================================ */
@media (max-width: 1024px) {

  /* Container */
  .container {
    padding-inline: var(--space-5);
  }

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

  /* Content grid — full width on smaller desktop */
  .content-grid {
    grid-template-columns: 1fr 280px;
    gap: var(--space-6);
  }

  /* Category grid */
  .grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Hero */
  .hero h1 {
    font-size: var(--font-3xl);
  }

  /* Header search */
  .header-search {
    max-width: 300px;
    margin-inline: var(--space-6);
  }
}

/* ============================================================
   768px — TABLET
   ============================================================ */
@media (max-width: 768px) {

  /* Base */
  :root {
    --header-height: 56px;
  }

  /* Container */
  .container {
    padding-inline: var(--space-4);
  }

  /* Typography scale down */
  h1 { font-size: var(--font-3xl); }
  h2 { font-size: var(--font-2xl); }
  h3 { font-size: var(--font-xl); }

  /* Header */
  .site-header .container {
    gap: var(--space-3);
  }

  .header-search {
    display: none;           /* Separate search page pe redirect karein */
  }

  .header-nav {
    gap: var(--space-1);
  }

  .header-nav a {
    padding: var(--space-2);
    font-size: var(--font-xs);
  }

  /* Hero */
  .hero {
    padding: var(--space-8) 0 var(--space-6);
  }

  .hero h1 {
    font-size: var(--font-2xl);
  }

  .hero p {
    font-size: var(--font-base);
  }

  /* Content grid — single column */
  .content-grid {
    grid-template-columns: 1fr;
  }

  /* Sidebar goes below content on tablet */
  .content-sidebar {
    order: 2;
  }

  /* Category grid */
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  /* Card body padding reduce */
  .card-body {
    padding: var(--space-5);
  }

  /* Footer grid */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }

  /* Related tools — horizontal scroll on tablet */
  .related-tools-list {
    display: flex;
    overflow-x: auto;
    gap: var(--space-3);
    padding-bottom: var(--space-2);
    scrollbar-width: none;
  }

  .related-tools-list::-webkit-scrollbar { display: none; }

  .related-tool-link {
    white-space: nowrap;
    flex-shrink: 0;
  }

  /* Modal */
  .modal {
    max-width: 100%;
    margin: var(--space-4);
    border-radius: var(--radius);
  }

  /* AI Help Button */
  .ai-help-btn {
    bottom: var(--space-5);
    right: var(--space-5);
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-xs);
  }

  /* Buttons full width on forms */
  .btn-full-mobile {
    width: 100%;
  }

  /* Grid auto */
  .grid-auto {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }

  /* Toast */
  .toast-container {
    bottom: var(--space-4);
    right: var(--space-4);
    left: var(--space-4);
  }

  .toast {
    min-width: unset;
    max-width: 100%;
  }

  /* Breadcrumb */
  .breadcrumb ol {
    font-size: var(--font-xs);
  }

  /* Section spacing */
  .section-title {
    font-size: var(--font-xl);
    margin-bottom: var(--space-5);
  }
}

/* ============================================================
   480px — MOBILE
   ============================================================ */
@media (max-width: 480px) {

  /* Container */
  .container {
    padding-inline: var(--space-4);
  }

  /* Typography */
  h1 { font-size: var(--font-2xl); }
  h2 { font-size: var(--font-xl); }
  h3 { font-size: var(--font-lg); }

  /* Header — minimal on mobile */
  .site-logo span.logo-text {
    display: none;       /* Just show icon/image on very small screens */
  }

  /* Hero */
  .hero {
    padding: var(--space-6) 0 var(--space-5);
  }

  .hero h1 {
    font-size: var(--font-xl);
    letter-spacing: -0.01em;
  }

  .hero p {
    font-size: var(--font-sm);
  }

  /* All grids → single column */
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  /* Category cards compact */
  .category-card {
    flex-direction: row;
    align-items: center;
    padding: var(--space-4);
    gap: var(--space-4);
  }

  .category-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    font-size: 20px;
  }

  .category-card h3 {
    font-size: var(--font-base);
  }

  /* Card */
  .card-body {
    padding: var(--space-4);
  }

  .card-header {
    padding: var(--space-4);
  }

  /* Form controls — larger touch target */
  .form-control {
    height: 48px;
    font-size: var(--font-base);
  }

  select.form-control {
    height: 48px;
  }

  /* Buttons */
  .btn {
    height: 48px;
    font-size: var(--font-base);
  }

  .btn-sm {
    height: 40px;
  }

  /* Result box */
  .result-box .result-value {
    font-size: var(--font-3xl);
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  /* Modal */
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }

  .modal {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    max-height: 85vh;
  }

  /* FAQ */
  .faq-question {
    font-size: var(--font-base);
  }

  /* Tabs — scrollable on mobile */
  .tabs-list {
    overflow-x: auto;
    scrollbar-width: none;
    padding-bottom: 1px;
  }

  .tabs-list::-webkit-scrollbar { display: none; }

  .tab-btn {
    white-space: nowrap;
    flex-shrink: 0;
  }

  /* Pagination */
  .pagination {
    gap: 2px;
  }

  /* Breadcrumb — truncate long paths */
  .breadcrumb li:not(:last-child):not(:first-child) {
    display: none;
  }

  /* AI Help Button — compact */
  .ai-help-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    padding: 0;
    justify-content: center;
  }

  .ai-help-btn span:not(.ai-icon) {
    display: none;   /* Only show icon on mobile */
  }

  /* Section title */
  .section-title {
    font-size: var(--font-lg);
  }

  /* Input addon */
  .input-addon {
    padding: 0 var(--space-3);
    font-size: var(--font-sm);
  }

  /* Grid auto */
  .grid-auto {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   360px — SMALL MOBILE (budget phones)
   ============================================================ */
@media (max-width: 360px) {

  :root {
    --space-6: 20px;
    --space-8: 24px;
  }

  .container {
    padding-inline: var(--space-3);
  }

  .card-body {
    padding: var(--space-3);
  }

  h1 { font-size: var(--font-xl); }

  .btn-lg {
    height: 48px;
    font-size: var(--font-base);
  }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
  .site-header,
  .site-footer,
  .breadcrumb,
  .ai-help-btn,
  .related-tools,
  .btn,
  .toast-container {
    display: none !important;
  }

  body {
    background: white;
    color: black;
    font-size: 12pt;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ccc;
  }

  .result-box {
    border: 2px solid #4F46E5;
    background: #EEF2FF;
  }

  a::after {
    content: " (" attr(href) ")";
    font-size: 10pt;
    color: #666;
  }
}