/* =====================================================
   RESPONSIVE.CSS — Noble's Food Hub
   Breakpoints:
     Tablet  : max-width 900px
     Mobile  : max-width 600px
===================================================== */

/* =====================
   TABLET (up to 900px)
===================== */
@media (max-width: 900px) {
  /* Header */
  header {
    padding: 12px 24px;
    flex-wrap: wrap;
    gap: 12px;
  }

  header .logo {
    width: 60px;
    height: 60px;
  }

  nav ul {
    gap: 20px;
  }

  nav ul li a,
  .dropdown-btn {
    font-size: 14px;
  }

  .btn-signin,
  .btn-signup {
    padding: 7px 14px;
    font-size: 13px;
  }

  /* Hero */
  .hero {
    padding: 50px 40px;
    gap: 30px;
  }

  .hero-text h1 {
    font-size: 2.2rem;
  }

  .hero-image {
    max-width: 420px;
  }

  .slider,
  .slides img {
    height: 300px;
  }

  /* Features */
  .features {
    padding: 50px 40px;
  }

  .features-grid {
    gap: 16px;
  }

  /* Menu */
  .menu-section {
    padding: 50px 40px;
  }

  /* About */
  .about-section {
    padding: 50px 40px;
  }

  .about-image img {
    width: 320px;
    height: 230px;
  }

  /* Forms */
  .form-box {
    padding: 35px 28px;
  }
}

/* =====================
   MOBILE (up to 600px)
===================== */
@media (max-width: 600px) {
  /* ---- Header ---- */
  header {
    padding: 12px 16px;
    position: relative;
  }

  header .logo {
    width: 52px;
    height: 52px;
  }

  /* Hide desktop nav and sign-in buttons, show hamburger */
  nav,
  .nav-right {
    display: none;
  }

  /* Hamburger button */
  .hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
  }

  .hamburger span {
    display: block;
    width: 24px;
    height: 3px;
    background-color: #ecf0f1;
    border-radius: 2px;
    transition: background-color 0.2s;
  }

  /* Mobile nav — shown when .open is added by JS */
  nav.mobile-open {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #2c3e50;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 300;
    padding: 10px 0 16px;
  }

  nav.mobile-open ul {
    flex-direction: column;
    gap: 0;
    align-items: flex-start;
    padding: 0 20px;
  }

  nav.mobile-open ul li {
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  nav.mobile-open ul li:last-child {
    border-bottom: none;
  }

  nav.mobile-open ul li a,
  nav.mobile-open .dropdown-btn {
    display: block;
    padding: 12px 0;
    font-size: 15px;
    border-bottom: none;
  }

  /* Mobile dropdown */
  nav.mobile-open .dropdown-menu {
    position: static;
    box-shadow: none;
    background-color: rgba(0, 0, 0, 0.15);
    border-radius: 4px;
    margin: 4px 0 8px;
  }

  nav.mobile-open .dropdown-menu a {
    padding: 10px 16px;
    font-size: 14px;
  }

  /* Mobile Sign In / Sign Up below nav */
  .nav-right.mobile-open {
    display: flex;
    padding: 12px 20px 4px;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #2c3e50;
    z-index: 299;
    justify-content: flex-start;
    gap: 10px;
  }

  /* ---- Hero ---- */
  .hero {
    flex-direction: column;
    padding: 36px 20px;
    gap: 28px;
    text-align: center;
  }

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

  .hero-text h1 {
    font-size: 1.9rem;
  }

  .hero-text .tagline {
    font-size: 1rem;
  }

  .hero-text p {
    font-size: 0.95rem;
  }

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

  .slider,
  .slides img {
    height: 240px;
  }

  /* ---- Features ---- */
  .features {
    padding: 40px 20px;
  }

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

  .features-grid {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .feature-card {
    max-width: 100%;
    width: 100%;
  }

  /* ---- Menu ---- */
  .menu-section {
    padding: 36px 16px;
  }

  .menu-card {
    width: 100%;
  }

  /* ---- About ---- */
  .about-section {
    padding: 36px 20px;
  }

  .about-container {
    flex-direction: column;
    gap: 28px;
  }

  .about-image img {
    width: 100%;
    height: 220px;
  }

  .values-grid {
    flex-direction: column;
    gap: 14px;
  }

  /* ---- Page Banner ---- */
  .page-banner {
    padding: 36px 20px;
  }

  .page-banner h1 {
    font-size: 1.7rem;
  }

  /* ---- Forms ---- */
  .form-page {
    padding: 30px 16px;
    align-items: flex-start;
  }

  .form-box {
    padding: 28px 20px;
  }

  .form-box h2 {
    font-size: 1.4rem;
  }

  /* ---- Footer ---- */
  footer {
    padding: 22px 16px;
    font-size: 0.88rem;
  }
}