:root {
    --bg: #ffffff;
    --text: #000000;
    --accent: #000000;
    --gray-light: #f8f9fa;
    --border: rgba(0,0,0,0.12);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
    --transition: all 0.4s cubic-bezier(0.23,1,0.32,1);
    --footer-bg: #ffffff;
    --footer-text: #1f2937;
    --footer-text-muted: #6b7280;
    --footer-accent: #1d4ed8;
    --footer-border: rgba(0,0,0,0.08);
    --footer-hover: #3b82f6;
    --badge-bg: rgba(0,0,0,0.03);
    --badge-border: rgba(0,0,0,0.10);
}

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: 'Inter', system-ui, sans-serif;
      background: #f8fafc;
      color: var(--text);
      line-height: 1.65;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      background-image: 
        radial-gradient(#cbd5e1 0.2px, transparent 1px);
        background-size: 20px 20px;
    }

    /* ──────────────────────────────────────────────
       NAVIGATION ── UNCHANGED
    ────────────────────────────────────────────── */
    nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 70px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 6%;
      z-index: 1000;
      backdrop-filter: blur(20px);
      background: rgba(255, 255, 255, 0.12);
      transition: var(--transition);
    }

    .logo {
      display: inline-flex;
      align-items: center;
      text-decoration: none;
      font-size: clamp(1.5rem, 4vw, 1.9rem);
      font-weight: 800;
      letter-spacing: -1.2px;
      color: var(--text);
      transition: var(--transition);
    }

    .logo img {
      display: block;
      height: 8rem;
      width: auto;
      max-height: 100%;
      object-fit: contain;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .logo:hover img {
      transform: scale(1.04);
      opacity: 0.92;
    }

    .nav-links {
      display: flex;
      gap: 32px;
      list-style: none;
    }

    .nav-links a {
      color: var(--text);
      text-decoration: none;
      font-weight: 500;
      font-size: 15px;
      position: relative;
      padding: 8px 0;
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: var(--transition);
      transform: translateX(-50%);
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .nav-right {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .nav-btn {
      height: 38px;
      padding: 0 18px;
      font-size: 14.5px;
      font-weight: 600;
      line-height: 1;
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: 10px;
      cursor: pointer;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
      backdrop-filter: blur(16px);
      color: #fff;
      white-space: nowrap;
      position: relative;
      background: #000000;
    }

    .nav-btn:hover {
      background: rgba(74, 222, 128, 0.20);
      transform: translateY(-1.5px);
      box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    }

    .menu-toggle {
      display: none;
      width: 48px;
      height: 48px;
      background: none;
      border: none;
      cursor: pointer;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 6px;
      padding: 8px;
      z-index: 1001;
    }

    .menu-toggle span {
      width: 28px;
      height: 2.5px;
      background: var(--text);
      border-radius: 2px;
      transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
      transform-origin: center;
    }

    .menu-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(9px, 8px); }
    .menu-toggle.open span:nth-child(2) { opacity: 0; transform: translateX(20px); }
    .menu-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(9px, -8px); }

    .mobile-menu {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100dvh;
      background: var(--bg);
      color: var(--text);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 48px;
      font-size: 2.8rem;
      font-weight: 400;
      letter-spacing: -1.5px;
      z-index: 999;
      opacity: 0;
      visibility: hidden;
      pointer-events: none;
      transform: translateY(-30px);
      transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    }

    .mobile-menu.open {
      opacity: 1;
      visibility: visible;
      pointer-events: all;
      transform: translateY(0);
    }

    .mobile-menu a {
      color: var(--text);
      text-decoration: none;
      opacity: 0.85;
      transition: all 0.4s ease;
    }

    .body-no-scroll { overflow: hidden !important; height: 100vh !important; }

    /* ─── MAIN CONTENT ────────────────────────────── */
    main {
      margin: 0 auto;
      padding: 4rem 6%;
    }

    h1 {
      font-size: clamp(2rem, 5vw, 3.5rem);
      font-weight: 700;
      letter-spacing: -0.04em;
      text-align: center;
      margin-bottom: 1.2rem;
      color: #0f172a;
      padding: 3rem 0 0;
    }

    .lead {
      font-size: 1.25rem;
      color: #475569;
      text-align: center;
      max-width: 58ch;
      margin: 0 auto 3.2rem;
      line-height: 1.5;
    }

    /* Search */
    .search-wrapper {
      max-width: 1000px;
      margin: 0 auto 4%;
      position: relative;
    }

    .search-field {
      width: 100%;
      padding: 1.1rem 1.1rem 1.1rem 3.2rem;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      font-size: 1.05rem;
      background: white;
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .search-field:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 4px rgba(59,130,246,0.12);
    }

    .search-icon {
      position: absolute;
      left: 1.1rem;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text3);
      font-size: 1.2rem;
    }

    /* Category filters */
    .filters {
      display: flex;
      gap: 0.75rem;
      justify-content: center;
      margin-bottom: 3.5rem;
      flex-wrap: wrap;
    }

    .filter-chip {
      padding: 0.55rem 1.25rem;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: white;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text2);
      cursor: pointer;
      transition: all 0.18s;
      white-space: nowrap;
    }

    .filter-chip:hover,
    .filter-chip.active {
      background: var(--accent);
      color: white;
      border-color: var(--accent);
    }

    /* FAQ list */
    .faq-list {
      max-width: 1400px;
      margin: 0 6%;
    }

    .faq-item {
      border-bottom: 1px solid var(--border);
      padding: 1.4rem 0;
      transition: background 0.18s;
    }

    .faq-item:hover {
      background: rgba(243,244,246,0.4);
    }

    .question-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }

    .question {
      font-size: 1.18rem;
      font-weight: 600;
      color: #0f172a;
      flex: 1;
      padding-right: 1.5rem;
    }

    .chevron {
      font-size: 1.1rem;
      color: var(--text3);
      transition: transform 0.28s ease;
    }

    .faq-item.open .chevron {
      transform: rotate(180deg);
    }

    .answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.36s ease, padding 0.36s ease;
      padding-top: 0;
      color: #475569;
      font-size: 1.05rem;
    }

    .faq-item.open .answer {
      max-height: 1800px;
      padding-top: 1.2rem;
    }

    /* CTA */
    .cta {
      text-align: center;
      margin: 6rem auto 4rem;
      max-width: 620px;
    }

    .cta h2 {
      font-size: 2.1rem;
      margin-bottom: 1.2rem;
      color: #0f172a;
    }

    .cta p {
      color: var(--text3);
      margin-bottom: 2rem;
      font-size: 1.1rem;
    }

    .btn {
      display: inline-block;
      background: var(--accent);
      color: white;
      padding: 0.95rem 2.2rem;
      border-radius: var(--radius);
      font-weight: 600;
      text-decoration: none;
      transition: all 0.22s;
    }

    .btn:hover {
      background: #2563eb;
      transform: translateY(-1px);
    }

/* ================== FOOTER ================== */

/* ==================================== RESPONSIVE MEDIA QUERIES ==================================== */

/* ════════════════ NAVIGATION - Hide nav buttons on small devices ════════════════════ */

@media (max-width: 1024px) {
    /* Hide nav-right buttons on tablets and smaller */
    .nav-right {
        display: none;
    }
    
    /* Show menu toggle */
    .menu-toggle {
        display: flex;
    }
    
    /* Adjust nav padding */
    nav {
        padding: 0 4%;
    }
}

/* ═══════════════════════════════════════════════════════
   Main body
   ════════════════════════════════════════════════════ */

/* ───────────── 1200px ───────────── */
@media (max-width: 1200px) {

  main {
    max-width: 1200px;
    padding: 7rem 4%;
  }

  h1 {
    font-size: 3rem;
    padding-top: 2.5rem;
  }

  .lead {
    font-size: 1.15rem;
    margin-bottom: 3rem;
  }

  .faq-list {
    max-width: 780px;
  }

  .answer {
    color: #475569;
  }

  .cta {
    margin: 5rem auto 3.5rem;
  }
}


/* ───────────── 768px ───────────── */
@media (max-width: 768px) {

  main {
    padding: 6rem 6%;
  }

  h1 {
    font-size: 2rem;
    line-height: 1.25;
    padding-top: 2rem;
  }

  .lead {
    font-size: 1.05rem;
    margin-bottom: 2.5rem;
  }

  .search-wrapper {
    margin-bottom: 2.5rem;
  }

  .filters {
    gap: 0.6rem;
    margin-bottom: 2.5rem;
  }

  .filter-chip {
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
  }

  .question {
    font-size: 1.05rem;
  }

  .answer {
    font-size: 0.98rem;
    color: #475569;
  }

  .cta h2 {
    font-size: 1.6rem;
  }

  .cta p {
    font-size: 1rem;
  }
}


/* ───────────── 480px ───────────── */
@media (max-width: 480px) {

  main {
    padding: 4.5rem 20px;
  }

  h1 {
    font-size: 1.8rem;
  }

  .lead {
    font-size: 0.95rem;
  }

  .search-field {
    font-size: 0.95rem;
    padding: 0.9rem 0.9rem 0.9rem 2.8rem;
  }

  .search-icon {
    left: 0.9rem;
    font-size: 1rem;
  }

  .filters {
    justify-content: flex-start;
  }

  .filter-chip {
    font-size: 0.8rem;
    padding: 0.45rem 0.9rem;
  }

  .faq-item {
    padding: 1.1rem 0;
  }

  .question {
    font-size: 0.98rem;
    padding-right: 1rem;
  }

  .chevron {
    font-size: 0.95rem;
  }

  .answer {
    font-size: 0.92rem;
    line-height: 1.6;
    color: #475569;
  }

  .cta {
    margin: 4rem auto 3rem;
  }

  .cta h2 {
    font-size: 1.4rem;
  }

  .btn {
    padding: 0.85rem 1.6rem;
    font-size: 0.9rem;
  }
}

.is-invalid{
    border-color : red !important;
}
.valid{
    border-color : #ddd;
}