* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Kumbh Sans', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}
/* ==========================================================
   NAVBAR STYLES
========================================================== */

/* Logo */
.navbar-logo {
  display: flex;
  align-items: center;
  cursor: pointer;
}

.navbar-logo img {
  height: 103px;
  margin: 0 -32px -20px;
  width: auto;
  object-fit: contain;
}

/* Navbar container */
.navbar__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  width: 100%;
  padding: 0 50px;
  position: fixed;
  top: 0;
  z-index: 1000;
  background-color: rgba(0, 0, 0, 0.5);
}

/* Menu */
.navbar__menu {
  display: flex;
  justify-content: center;
  list-style: none;
  margin: 0 auto;
  padding: 0;
}

.navbar__item {
  height: 80px;
  position: relative;
}

.navbar__links {
  color: #fff;
  text-decoration: none;
  height: 100%;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
}

.navbar__links:hover {
  color: #e40c0c;
}

/* Buttons */
.navbar__btn.desktop {
  display: flex;
}

.navbar__btn.mobile {
  display: none;
}

.button {
  background: #e40c0c;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  color: #fff;
  text-decoration: none;
  transition: all 0.3s ease;
}

.button:hover {
  background: #ae3737;
}

/* ==========================================================
   DESKTOP DROPDOWNS
========================================================== */

/* Main dropdown arrow */
.navbar__item.dropdown > .navbar__links::after {
  content: '▼';
  font-size: 0.6rem;
  margin-left: 5px;
  transition: transform 0.3s ease;
  color: #b60f0f;
}

.navbar__item.dropdown.active > .navbar__links::after {
  transform: rotate(-180deg);
}

/* Main dropdown menu */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #111;
  min-width: 180px;
  border-radius: 2px;
  flex-direction: column;
  z-index: 1000;
  list-style: none; /* remove bullet */
  padding: 0;
  margin: 0;
}

.navbar__item.dropdown:hover > .dropdown-menu {
  display: flex;
}

.dropdown-menu li a {
  display: block;
  padding: 10px 20px;
  color: #fff;
  text-decoration: none;
  white-space: nowrap;
}

.dropdown-menu li a:hover {
  background: #e40c0c;
}

/* Sub-dropdown */
.dropdown-sub {
  position: relative;
}

.dropdown-sub-menu {
  display: none;
  position: absolute;
  top: 0;
  left: 100%;
  background: #222;
  min-width: 180px;
  border-radius: 2px;
  flex-direction: column;
  z-index: 1000;
  list-style: none; /* remove bullet */
  padding: 0;
  margin: 0;
}

.dropdown-sub:hover > .dropdown-sub-menu {
  display: flex;
}

.dropdown-sub > a::after {
  content: "▸";
  float: right;
  margin-left: 10px;
  transition: transform 0.3s ease;
}

.dropdown-sub:hover > a::after {
  transform: rotate(90deg);
}

.dropdown-sub-menu li a:hover {
  background: #e40c0c;
}

/* Hamburger toggle */
.navbar__toggle {
  display: none;
}

/* ==========================================================
   MOBILE MENU (≤968px)
========================================================== */
@media screen and (max-width: 968px) {

  /* Hamburger */
  .navbar__toggle {
    display: block;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    background: none;
    border: none;
    z-index: 2000;
  }

  /* Fullscreen menu */
  .navbar__menu {
    flex-direction: column;
    justify-content: flex-start;
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100% - 80px);
    opacity: 0;
    transition: all 0.4s ease;
    background: #000;
    display: flex;
    overflow-y: auto;
    padding: 0;
  }

  .navbar__menu.active {
    left: 0;
    opacity: 1;
  }

  .navbar__item {
    width: 100%;
  }

  .navbar__links {
    width: 100%;
    text-align: center;
    padding: 12px 0;
    justify-content: center;
    display: block;
  }

  /* Buttons */
  .navbar__btn.desktop { display: none; }

  .navbar__btn.mobile {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 20px auto;
    padding: 12px 20px;
    width: 60%;
  }

  .button {
    width: 80%;
    text-align: center;
    padding: 14px 20px;
    margin: 0 auto;
    display: block;
  }

  /* Mobile dropdown slide-down */
  .navbar__item.dropdown .dropdown-menu {
    position: relative;
    top: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .navbar__item.dropdown.active .dropdown-menu {
    max-height: 1000px; /* enough for multiple items */
  }

  .dropdown-menu li a {
    text-align: center;
  }

  /* Nested sub-dropdown slide-down */
  .dropdown-sub-menu {
    position: relative;
    top: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .dropdown-sub.active .dropdown-sub-menu {
    max-height: 500px; /* enough for nested items */
  }

  /* Remove list bullets globally in mobile dropdowns */
  .dropdown-menu,
  .dropdown-sub-menu {
    list-style: none;
    margin: 0;
    padding: 0;
  }
}


/* GOVERNMENT FUEL MARKING - CLEAN STYLING */
.fuel-about {
    background: linear-gradient(to bottom, #f7f7f7, #ffffff);
    color: #333;
    padding: 100px 20px 60px;
    font-family: 'Kumbh Sans', sans-serif;
}

/* Main container */
.fuel-about-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Heading */
.fuel-about-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.fuel-about-text h2 span {
    font-weight: 500;
    color: #e40c0c;
}

/* Sub headings */
.fuel-about-text h3 {
    font-size: 1.5rem;
    color: #e40c0c;
    margin-top: 30px;
    margin-bottom: 15px;
}

.fuel-about-text h4 {
    font-size: 1.2rem;
    color: #e40c0c;
    margin-top: 20px;
    margin-bottom: 8px;
    font-weight: 600;
}

/* Text */
.fuel-about-text p {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 15px;
    color: #0f0f0f;
}

/* ADVANTAGES BOX */
.advantages-box {
    background: #ffffff;
    padding: 25px 25px 15px;
    border-radius: 12px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.08);
    border-left: 5px solid #e40c0c;
}

/* Advantages list */
.fuel-about-text ul.advantages-list {
    list-style: none;
    padding-left: 0;
    margin-top: 15px;
}

.fuel-about-text ul.advantages-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
}

.fuel-about-text ul.advantages-list li i {
    color: #e40c0c;
    font-size: 1.2rem;
    margin-top: 3px;
}

/* Fuel analyzers grid */
.fuel-analyzers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 15px;
}

.fuel-analyzers-grid .analyzer-item {
    background: #ffffff;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.fuel-analyzers-grid .analyzer-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.12);
}

.fuel-analyzers-grid h4 {
    color: #e40c0c;
    margin-bottom: 10px;
}

/* Call to action */
.fuel-cta {
    text-align: center;
    margin-top: 40px;
}

.fuel-cta a.button-cta {
    background-color: #e40c0c;
    color: #fff;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: 0.3s;
}

.fuel-cta a.button-cta:hover {
    background-color: #ae3737;
    transform: translateY(-2px);
}

/* Responsive adjustments */
@media screen and (max-width: 768px) {
    .fuel-about-container {
        padding: 0 15px;
        gap: 20px;
    }

    .fuel-about-text h2 {
        font-size: 1.7rem;
    }

    .fuel-about-text h3 {
        font-size: 1.3rem;
    }

    .fuel-about-text h4 {
        font-size: 1.1rem;
    }

    .fuel-analyzers-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}


/* ============================
   FOOTER (Improved Design)
============================ */
.site-footer {
    background: #0c0c0c;
    color: #eee;
    padding: 70px 20px 25px;
    font-family: "Kumbh Sans", sans-serif;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 1fr;
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

/* Footer Column */
.footer-col h3 {
    color: #e40c0c;
    font-size: 1.25rem;
    margin-bottom: 15px;
    position: relative;
}

.footer-col h3::after {
    content: "";
    position: absolute;
    width: 45px;
    height: 3px;
    background: linear-gradient(90deg, #e40c0c, #ff544e);
    bottom: -6px;
    left: 0;
    border-radius: 6px;
}

/* About */
.footer-about p {
    font-size: 1rem;
    color: #bfbfbf;
    line-height: 1.7;
    max-width: 320px;
}

/* Logo */
.footer-logo {
    width: 160px;
    margin-bottom: 20px;
    filter: brightness(1.1);
    transition: transform 0.25s;
}

.footer-logo:hover {
    transform: scale(1.07);
}

/* Links */
.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul li a {
    color: #ccc;
    text-decoration: none;
    transition: 0.25s;
}

.footer-links ul li a:hover {
    color: #e40c0c;
    padding-left: 6px;
}

/* Contact Info */
.footer-contact p {
    font-size: 0.95rem;
    margin-bottom: 12px;
    line-height: 1.6;
    color: #ccc;
}

.footer-contact i {
    color: #e40c0c;
    margin-right: 8px;
}

/* Social Icons */
.footer-social a {
    color: #ccc;
    font-size: 1.3rem;
    margin-right: 15px;
    transition: 0.25s;
}

.footer-social a:hover {
    color: #e40c0c;
    transform: translateY(-4px);
}

.footer-bottom {
    margin-top: 45px;
    padding-top: 15px;
    border-top: 1px solid rgba(255,255,255,0.12);
    text-align: center;
    font-size: 0.9rem;
    color: #aaa;
}

/* =============================
   RESPONSIVE FOOTER
============================= */
@media (max-width: 1000px) {
    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 650px) {
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-col h3::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-social a {
        margin-right: 10px;
    }

    .footer-about p,
    .footer-contact p {
        margin: 0 auto 10px;
        max-width: 350px;
    }
}