/* ============================================================
   noise-remover.com — Responsive CSS
   Breakpoints:
   xs:  < 480px  (small phones)
   sm:  < 640px  (phones)
   md:  < 768px  (tablets)
   lg:  < 1024px (small laptops)
   xl:  < 1200px (laptops)
   ============================================================ */

/* ============================================================
   LARGE DESKTOP (> 1200px)
   ============================================================ */
@media (min-width: 1200px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

/* ============================================================
   LAPTOP (< 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  :root {
    --nav-height: 60px;
  }

  .section {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }

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

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

  .stat-item:nth-child(2) {
    border-right: none;
  }

  /* Grid */
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================================
   TABLET (< 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --nav-height: 56px;
  }

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

  .section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }

  .section-header {
    margin-bottom: var(--space-8);
  }

  .section-header p {
    font-size: var(--text-base);
  }

  /* Navigation */
  .navbar-nav {
    display: none;
  }

  .navbar-cta {
    display: none;
  }

  .navbar-toggle {
    display: flex;
  }

  /* Grids */
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

  /* Form rows */
  .form-row {
    grid-template-columns: 1fr;
  }

  /* Buttons */
  .btn-lg {
    padding: 12px 24px;
    font-size: var(--text-base);
  }

  .btn-xl {
    padding: 14px 28px;
    font-size: var(--text-md);
  }

  /* Page hero */
  .page-hero {
    padding: var(--space-10) var(--space-4) var(--space-8);
  }

  .page-hero h1 {
    font-size: var(--text-3xl);
  }

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

  .page-hero-meta {
    flex-direction: column;
    gap: var(--space-3);
  }

  /* Stats band */
  .stats-band {
    padding: var(--space-6) 0;
  }

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

  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--color-primary-100);
    padding-bottom: var(--space-4);
    margin-bottom: var(--space-4);
  }

  .stat-item:last-child,
  .stat-item:nth-last-child(-n+2) {
    border-bottom: none;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  /* Cookie banner */
  .cookie-banner {
    flex-direction: column;
    align-items: flex-start;
    left: var(--space-3);
    right: var(--space-3);
    bottom: var(--space-3);
  }

  .cookie-banner-actions {
    width: 100%;
    justify-content: flex-end;
  }

  /* Toast */
  .toast-container {
    left: var(--space-3);
    right: var(--space-3);
    top: 70px;
  }

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

  /* Hero buttons */
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-buttons .btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }

  /* Audio player */
  .audio-player {
    flex-wrap: wrap;
  }

  /* Breadcrumb */
  .breadcrumb {
    flex-wrap: wrap;
  }
}

/* ============================================================
   PHONE (< 640px)
   ============================================================ */
@media (max-width: 640px) {
  :root {
    --nav-height: 56px;
  }

  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .section {
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
  }

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

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

  .footer-brand-desc {
    max-width: 100%;
  }

  .footer-legal {
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
  }

  /* Stats */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Table */
  .data-table th,
  .data-table td {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
  }

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

  /* Navbar logo text — hide on very small screens */
  .navbar-logo-text {
    font-size: var(--text-sm);
  }
}

/* ============================================================
   SMALL PHONE (< 480px)
   ============================================================ */
@media (max-width: 480px) {
  :root {
    --nav-height: 52px;
  }

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

  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .section {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .btn {
    font-size: var(--text-xs);
    padding: 9px 18px;
  }

  .btn-lg {
    padding: 11px 20px;
    font-size: var(--text-sm);
  }

  /* Stats all in one column */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Page hero */
  .page-hero {
    padding: var(--space-8) var(--space-4) var(--space-6);
  }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
  .navbar,
  .cookie-banner,
  .toast-container,
  footer,
  .btn,
  .mobile-menu {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
  }

  h1, h2, h3 {
    page-break-after: avoid;
  }

  p, ul, ol {
    page-break-inside: avoid;
  }

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

/* ============================================================
   UTILITY RESPONSIVE CLASSES
   ============================================================ */

/* Hide/show at breakpoints */
.hide-mobile  { display: block; }
.show-mobile  { display: none; }

@media (max-width: 768px) {
  .hide-mobile  { display: none !important; }
  .show-mobile  { display: block !important; }
  .hide-tablet  { display: none !important; }
}

@media (max-width: 640px) {
  .hide-phone   { display: none !important; }
  .show-phone   { display: block !important; }
}

/* Touch targets — minimum 44x44px on mobile */
@media (max-width: 768px) {
  button,
  .btn,
  a.nav-link,
  input[type="checkbox"],
  input[type="radio"] {
    min-height: 44px;
  }

  .btn-xs,
  .btn-sm {
    min-height: 36px;
  }
}


/* Studio usage bar mobile fix */
@media (max-width: 640px) {
  .studio-usage-bar {
    flex-wrap: nowrap;
    gap: 6px;
    padding: 10px 12px;
    overflow: hidden;
    box-sizing: border-box;
    width: 100%;
  }
  .studio-usage-bar-label {
    font-size: 11px;
    flex-shrink: 0;
  }
  .studio-usage-bar-value {
    font-size: 11px;
    flex-shrink: 0;
  }
  .studio-usage-bar-track {
    flex: 1;
    min-width: 30px;
  }
  .studio-plan-badge {
    font-size: 10px;
    padding: 2px 6px;
    flex-shrink: 0;
  }
  .studio-usage-bar .btn,
  .studio-usage-bar a.btn {
    font-size: 11px;
    padding: 4px 8px;
    white-space: nowrap;
    flex-shrink: 0;
    min-width: unset;
  }
}

/* Auth pages mobile fix */
@media (max-width: 640px) {
  .auth-nav-bar {
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 24px;
  }
  .auth-nav-bar span {
    font-size: 12px;
  }
}