:root {
  --blue: #ed1c24;
  --blue-dark: #ed1c24;
  --orange: #ff8a00;
  --red: #ed1c24;
  --bg: #f8f8f8;
  --text: #252525;
  --muted: #959595;
  --line: #e9edf0;
  --white: #fff;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Open Sans", sans-serif;
  color: var(--text);
  background: var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1220px, calc(100% - 2rem));
  margin: 0 auto;
}

.utility-bar {
  background: var(--blue-dark);
  color: #fff;
  font-size: 13px;
}

.utility-wrap {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.utility-left {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.utility-left a {
  opacity: 0.95;
}

.utility-left a:hover {
  text-decoration: underline;
}

.brand-strip {
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.brand-wrap {
  min-height: 118px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.brand-logo img {
  height: 84px;
  width: auto;
}

.brand-meta {
  display: flex;
  gap: 0.6rem;
}

.btn {
  border: 0;
  border-radius: 6px;
  color: #fff;
  padding: 0.62rem 1rem;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-orange {
  background: var(--red);
}

.btn-blue {
  background: var(--red);
}

.btn:hover {
  filter: brightness(0.95);
}

.main-nav {
  background: #fff;
  color: #000;
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: 0 5px 18px rgba(0, 0, 0, 0.08);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  min-height: 50px;
  display: flex;
  align-items: center;
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  width: 100%;
}

.nav-links > li {
  position: relative;
}

.nav-links > li > a {
  display: block;
  padding: 16px 14px;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  color: #000;
}

.nav-links > li > a:hover {
  color: var(--red);
  background: transparent;
}

.submenu {
  position: absolute;
  left: 0;
  top: 100%;
  width: 275px;
  background: #f5f5f5;
  color: var(--text);
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;
  border: 1px solid var(--line);
  border-top: 0;
  display: none;
  z-index: 25;
}

.submenu a {
  display: block;
  padding: 0.58rem 0.9rem;
  font-size: 13px;
}

.submenu a:hover {
  background: #fbfbfc;
  color: var(--red);
}

.has-submenu:hover .submenu {
  display: block;
}

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  width: 38px;
  height: 38px;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  margin: 6px 0;
  background: #000;
}

.hero {
  position: relative;
  min-height: 510px;
  background: #111;
}

.slides {
  min-height: 510px;
  position: relative;
}

.slide {
  min-height: 510px;
  background-size: cover;
  background-position: center;
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.26);
}

.slide.active {
  opacity: 1;
}

.hero-controls {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-controls button {
  pointer-events: auto;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
}

#prevSlide {
  left: 15px;
}

#nextSlide {
  right: 15px;
}

.hero-dots {
  position: absolute;
  bottom: 16px;
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 0.5rem;
}

.hero-dots button {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 0;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
}

.hero-dots button.active {
  background: #fff;
}

.highlights {
  margin-top: 1.6rem;
  position: relative;
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
  align-items: start;
}

.feature-card,
.news-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}

.feature-card h3,
.news-card h3 {
  margin: 0 0 0.9rem;
  font-size: 17px;
  color: #000;
  border-left: 4px solid var(--red);
  padding-left: 0.5rem;
}

.feature-card h4 {
  margin: 0.9rem 0 0.6rem;
  font-size: 19px;
  line-height: 1.35;
}

.feature-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 6px;
}

.feature-card img.about-nano-img {
  object-fit: contain;
  background: #fff;
}

.feature-card p {
  margin: 0;
  color: #555;
  font-size: 15px;
  line-height: 1.7;
}

.text-link {
  display: inline-flex;
  margin-top: 0.75rem;
  color: var(--red);
  font-weight: 700;
  font-size: 13px;
}

.news-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.9rem;
}

.news-card li {
  border-bottom: 1px dashed var(--line);
  padding-bottom: 0.75rem;
}

.news-card li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.news-card span {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.news-card a {
  font-size: 14px;
  line-height: 1.45;
}

.news-card a:hover {
  color: var(--red);
}

.cta-band {
  margin-top: 2rem;
  background:
    linear-gradient(rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0.18)),
    url("../images/call-to-action-bg-red.jpg") center/cover no-repeat;
  color: #fff;
}

.cta-wrap {
  min-height: 110px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cta-wrap h2 {
  margin: 0;
  max-width: 800px;
  font-size: 27px;
  line-height: 1.28;
}

.courses,
.results,
.faqs,
.facilities,
.admissions {
  padding: 3.3rem 0;
}

.resources {
  padding: 0 0 3.3rem;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.resource-grid article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.95rem;
}

.resource-grid h3 {
  margin: 0 0 0.45rem;
  color: #000;
}

.resource-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.section-title {
  margin-bottom: 1.2rem;
}

.section-title h2 {
  margin: 0;
  color: #000;
  font-size: 30px;
}

.section-title p {
  margin: 0.45rem 0 0;
  color: var(--muted);
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.8rem;
}

.course-grid article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.95rem;
}

.course-grid h3 {
  margin: 0 0 0.5rem;
  color: #000;
  font-size: 17px;
}

.course-grid p {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
}

.results {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.result-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
}

.result-grid h3 {
  margin: 0;
  color: var(--red);
  font-size: 36px;
}

.result-grid p {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.faq-grid h2 {
  margin: 0 0 0.9rem;
  color: #000;
}

.accordion {
  display: grid;
  gap: 0.6rem;
}

.accordion article {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
}

.acc-trigger {
  width: 100%;
  border: 0;
  text-align: left;
  background: #fff;
  padding: 0.82rem 0.9rem;
  font-weight: 700;
  color: #252525;
  cursor: pointer;
}

.acc-trigger.active {
  color: var(--red);
}

.acc-panel {
  display: none;
  padding: 0 0.9rem 0.85rem;
  color: #555;
  line-height: 1.6;
  font-size: 14px;
}

.campus-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.campus-grid span {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.8rem;
  text-align: center;
  font-weight: 700;
  color: #252525;
}

.admission-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  align-items: start;
}

.admission-wrap h2 {
  margin-top: 0;
  color: #000;
  font-size: 30px;
}

.admission-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  display: grid;
  gap: 0.7rem;
}

.admission-form label {
  display: grid;
  gap: 0.3rem;
  font-size: 14px;
  color: #555;
}

.admission-form input,
.admission-form select {
  border: 1px solid #d6d6d6;
  border-radius: 6px;
  padding: 0.62rem;
  font: inherit;
}

.form-message {
  margin: 0;
  min-height: 18px;
  color: var(--red);
  font-weight: 700;
  font-size: 13px;
}

.site-footer {
  background: #1b1d26;
  color: #f0f0f0;
}

.footer-grid {
  padding: 2rem 0 1.2rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.site-footer h3 {
  margin-top: 0;
  color: #fff;
  font-size: 17px;
}

.site-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}

.site-footer li a:hover {
  color: #fff;
}

.site-footer p {
  margin: 0 0 0.35rem;
  font-size: 14px;
}

.copyright {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.85rem 0;
  font-size: 13px;
}

@media (max-width: 1140px) {
  .course-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .highlight-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .news-card {
    grid-column: span 2;
  }

  .campus-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .menu-toggle {
    display: block;
  }

  .nav-wrap {
    justify-content: flex-end;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #eee;
    padding-bottom: 0.5rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links > li > a {
    padding: 0.8rem 1rem;
  }

  .submenu {
    width: 100%;
    position: static;
    border: 0;
    padding-top: 0;
  }

  .has-submenu:hover .submenu {
    display: none;
  }

  .has-submenu.open .submenu {
    display: block;
  }

  .submenu a {
    padding-left: 1.5rem;
  }

  .brand-wrap {
    min-height: 102px;
  }

  .brand-logo img {
    height: 68px;
  }

  .hero,
  .slides,
  .slide {
    min-height: 370px;
  }

  .cta-wrap {
    flex-direction: column;
    justify-content: center;
    text-align: center;
    padding: 1rem 0;
  }

  .cta-wrap h2 {
    font-size: 23px;
  }

  .faq-grid,
  .admission-wrap,
  .footer-grid,
  .result-grid {
    grid-template-columns: 1fr 1fr;
  }

  .course-grid,
  .resource-grid,
  .campus-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .utility-wrap {
    flex-direction: column;
    justify-content: center;
    padding: 0.4rem 0;
    align-items: flex-start;
  }

  .utility-right {
    font-size: 12px;
  }

  .brand-wrap {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.7rem 0;
  }

  .brand-logo img {
    height: auto;
    max-height: 74px;
  }

  .hero,
  .slides,
  .slide {
    min-height: 280px;
  }

  .highlight-grid,
  .course-grid,
  .resource-grid,
  .campus-grid,
  .faq-grid,
  .admission-wrap,
  .footer-grid,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .news-card {
    grid-column: auto;
  }

  .section-title h2,
  .admission-wrap h2 {
    font-size: 26px;
  }

  .cta-wrap h2 {
    font-size: 20px;
  }
}