/* ============================================
   Responsive Styles
   ============================================ */

/* ---------- Large Screens (1280px+) ---------- */
@media (min-width: 1280px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* ---------- Desktop (1024px - 1279px) ---------- */
@media (max-width: 1279px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .footer-grid .footer-column:last-child {
    grid-column: span 1;
  }
}

/* ---------- Tablet (768px - 1023px) ---------- */
@media (max-width: 1023px) {
  :root {
    --fs-5xl: 2.5rem;
    --fs-4xl: 2rem;
    --fs-3xl: 1.5rem;
  }

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

  .hamburger {
    display: flex;
  }

  .mobile-nav {
    display: block;
  }

  .mobile-nav-backdrop {
    display: block;
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding: var(--space-16) 0 var(--space-12);
  }

  .hero-stats {
    gap: var(--space-8);
  }

  .floating-icon {
    display: none;
  }

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

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

  .footer-brand {
    grid-column: span 2;
  }

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

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

/* ---------- Mobile Large (481px - 767px) ---------- */
@media (max-width: 767px) {
  :root {
    --fs-5xl: 2rem;
    --fs-4xl: 1.75rem;
    --fs-3xl: 1.375rem;
    --fs-2xl: 1.25rem;
    --nav-height: 64px;
  }

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

  .section {
    padding: var(--space-12) 0;
  }

  .section-lg {
    padding: var(--space-16) 0;
  }

  /* Hero */
  .hero {
    padding: var(--space-12) 0;
  }

  .hero h1 {
    font-size: var(--fs-4xl);
  }

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

  .hero-ctas {
    flex-direction: column;
    align-items: center;
  }

  .hero-ctas .btn {
    width: 100%;
    max-width: 300px;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-6);
    align-items: center;
  }

  .hero-shape { display: none; }

  /* Grids */
  .tools-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  /* Search */
  .search-modal {
    width: 95%;
    margin-top: var(--space-4);
  }

  /* Trust Badges */
  .trust-badges {
    gap: var(--space-6);
  }

  /* CTA Section */
  .cta-section {
    padding: var(--space-12) 0;
  }

  /* Page Header */
  .page-header {
    padding: var(--space-8) 0;
  }

  .page-header h1 {
    font-size: var(--fs-3xl);
  }
}

/* ---------- Mobile Small (≤480px) ---------- */
@media (max-width: 480px) {
  :root {
    --fs-5xl: 1.75rem;
    --fs-4xl: 1.5rem;
    --fs-3xl: 1.25rem;
    --fs-2xl: 1.125rem;
  }

  .container {
    padding: 0 var(--space-3);
  }

  .section {
    padding: var(--space-10) 0;
  }

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

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

  .faq-question {
    padding: var(--space-4);
    font-size: var(--fs-sm);
  }

  .faq-answer-content {
    padding: 0 var(--space-4) var(--space-4);
    font-size: var(--fs-sm);
  }

  .btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--fs-sm);
  }

  .hero-stat-number {
    font-size: var(--fs-2xl);
  }

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

  /* Tool Cards & Interfaces */
  .tool-card {
    padding: var(--space-4) !important;
    border-radius: var(--radius-xl);
  }

  .tool-controls {
    padding: var(--space-4) !important;
  }

  .control-group {
    min-width: 100% !important;
    width: 100% !important;
  }

  /* Action buttons stack cleanly on mobile */
  .btn-group,
  .calc-actions,
  .result-actions,
  .tool-actions,
  .calc-form > div[style*="display: flex"]:not(:has(.tn-cal-preset-pill)),
  .calc-form > div[style*="display:flex"]:not(:has(.tn-cal-preset-pill)) {
    display: flex !important;
    flex-direction: column !important;
    flex-wrap: nowrap !important;
    width: 100% !important;
    box-sizing: border-box !important;
    gap: var(--space-3) !important;
    align-items: stretch !important;
  }

  .btn-group > .btn,
  .btn-group > button,
  .calc-actions > .btn,
  .calc-actions > button,
  .result-actions > .btn,
  .result-actions > button,
  .tool-actions > .btn,
  .tool-actions > button,
  .calc-form > div[style*="display: flex"]:not(:has(.tn-cal-preset-pill)) > .btn,
  .calc-form > div[style*="display: flex"]:not(:has(.tn-cal-preset-pill)) > button,
  .calc-form > div[style*="display:flex"]:not(:has(.tn-cal-preset-pill)) > .btn,
  .calc-form > div[style*="display:flex"]:not(:has(.tn-cal-preset-pill)) > button {
    display: flex !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    flex: 0 0 auto !important;
    box-sizing: border-box !important;
    justify-content: center !important;
    text-align: center !important;
    margin: 0 !important;
  }
}

@media (max-width: 360px) {
  .tool-card {
    padding: var(--space-3) !important;
  }
}

/* ---------- Touch-Friendly Sizing ---------- */
@media (pointer: coarse) {
  .btn,
  .nav-link,
  .mobile-nav-link,
  .faq-question,
  .form-input,
  .form-select,
  .form-textarea {
    min-height: 44px;
  }

  .nav-search-btn,
  .theme-toggle,
  .hamburger {
    min-width: 44px;
    min-height: 44px;
  }
}

/* ---------- Print Styles ---------- */
@media print {
  .navbar,
  .mobile-nav,
  .search-overlay,
  .footer,
  .ad-container,
  .hero-bg-elements,
  .theme-toggle,
  .hamburger {
    display: none !important;
  }

  body {
    padding-top: 0;
    color: #000;
    background: #fff;
  }

  .hero {
    background: none;
    min-height: auto;
    padding: var(--space-6) 0;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}