:root {
  --black: #050505;
  --black-soft: #101010;
  --dark: #171717;
  --white: #ffffff;
  --off-white: #f5f5f5;
  --gray: #a0a0a0;
  --border: #2a2a2a;
  --max-width: 1180px;
  --radius: 18px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: var(--white);
  color: var(--black);
  line-height: 1.75;
}

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

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

.container {
  width: min(92%, var(--max-width));
  margin: auto;
}

.narrow {
  max-width: 820px;
}

.eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 15px;
  color: #777;
}

h1,
h2,
h3,
h4 {
  line-height: 1.15;
}

h1 {
  font-size: clamp(42px, 7vw, 78px);
  letter-spacing: -3px;
}

h2 {
  font-size: clamp(32px, 4vw, 52px);
  letter-spacing: -1.5px;
}

h3 {
  font-size: 22px;
}

p {
  margin-bottom: 20px;
}


/* HEADER */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(5, 5, 5, 0.96);
  border-bottom: 1px solid #222;
  backdrop-filter: blur(10px);
}

.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: white;
  font-weight: 800;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  gap: 30px;
}

.main-nav a {
  color: #ddd;
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition);
}

.main-nav a:hover {
  color: white;
}

.menu-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 27px;
  height: 2px;
  background: white;
  margin: 6px 0;
}


/* HERO */

.hero {
  background: var(--black);
  color: white;
  padding: 90px 0;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 70px;
}

.hero-content p {
  color: #bdbdbd;
}

.hero-lead {
  max-width: 680px;
  font-size: 19px;
  margin: 30px 0;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn {
  padding: 14px 22px;
  border: 1px solid white;
  font-weight: 800;
  border-radius: 5px;
  transition: var(--transition);
}

.btn-primary {
  background: white;
  color: black;
}

.btn-primary:hover {
  background: #ddd;
}

.btn-outline {
  color: white;
}

.btn-outline:hover {
  background: white;
  color: black;
}

.hero-stats {
  display: flex;
  gap: 35px;
}

.hero-stats div {
  border-left: 1px solid #444;
  padding-left: 15px;
}

.hero-stats strong {
  display: block;
  font-size: 25px;
}

.hero-stats span {
  font-size: 11px;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.image-frame {
  padding: 10px;
  border: 1px solid #333;
  background: #111;
  transform: rotate(2deg);
}

.image-frame img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: grayscale(15%);
}

.image-caption {
  display: block;
  text-align: center;
  color: #777;
  margin-top: 20px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
}


/* TOC */

.toc-section {
  padding: 70px 0;
  background: #f7f7f7;
}

.toc {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid #ddd;
  margin-top: 30px;
}

.toc a {
  padding: 20px;
  border-bottom: 1px solid #ddd;
  font-weight: 700;
  transition: var(--transition);
}

.toc a:nth-child(odd) {
  border-right: 1px solid #ddd;
}

.toc a:hover {
  background: #111;
  color: white;
}

.toc span {
  color: #888;
  margin-right: 15px;
}


/* CONTENT */

.content-section {
  padding: 100px 0;
}

.content-section.light {
  background: #f5f5f5;
}

.content-section h2 {
  margin-bottom: 30px;
}

.content-section p {
  color: #3d3d3d;
  font-size: 17px;
}

.text-link {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  font-weight: 800;
}


/* CARDS */

.cards-section {
  background: var(--black);
  color: white;
  padding: 100px 0;
}

.section-heading {
  margin-bottom: 40px;
}

.section-heading.center {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-heading p {
  color: #777;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}

.feature-card {
  background: #111;
  border: 1px solid #292929;
  padding: 30px 24px;
  min-height: 270px;
  transition: var(--transition);
}

.feature-card:hover {
  background: #1c1c1c;
  transform: translateY(-5px);
}

.icon {
  width: 48px;
  height: 48px;
  border: 1px solid #555;
  display: grid;
  place-items: center;
  margin-bottom: 25px;
  font-size: 20px;
}

.feature-card p {
  color: #999;
  font-size: 14px;
  margin-top: 15px;
}


/* TABLE */

.table-section {
  padding: 100px 0;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid #ddd;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}

th,
td {
  text-align: left;
  padding: 18px;
  border-bottom: 1px solid #ddd;
}

th {
  background: #080808;
  color: white;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 1px;
}

td {
  color: #444;
}


/* FAQ */

.faq-section {
  padding: 100px 0;
  background: #f6f6f6;
}

.faq-container {
  max-width: 900px;
}

.faq-list {
  border-top: 1px solid #ccc;
}

.faq-item {
  border-bottom: 1px solid #ccc;
}

.faq-question {
  width: 100%;
  padding: 24px 0;
  background: transparent;
  border: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 17px;
  font-weight: 800;
  text-align: left;
}

.plus {
  font-size: 28px;
  font-weight: 300;
  transition: var(--transition);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer p {
  color: #666;
  padding-bottom: 22px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-item.active .plus {
  transform: rotate(45deg);
}


/* FOOTER */

.site-footer {
  background: var(--black);
  color: white;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  padding: 75px 0;
}

.footer-brand img {
  width: 55px;
  margin-bottom: 20px;
}

.footer-brand p {
  max-width: 400px;
  color: #888;
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-column h4 {
  margin-bottom: 10px;
}

.footer-column a {
  color: #888;
  transition: var(--transition);
}

.footer-column a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #222;
  padding: 22px 0;
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.footer-bottom p,
.footer-bottom a {
  margin: 0;
  color: #666;
  font-size: 13px;
}


/* RESPONSIVE */

@media (max-width: 900px) {

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

  .hero-image-wrap {
    max-width: 550px;
    margin: auto;
  }

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

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

@media (max-width: 700px) {

  .header-inner {
    min-height: 70px;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    padding: 20px;
    background: #050505;
    border-top: 1px solid #222;
    flex-direction: column;
    gap: 0;
  }

  .main-nav.active {
    display: flex;
  }

  .main-nav a {
    padding: 14px 0;
    border-bottom: 1px solid #222;
  }

  .hero {
    padding: 65px 0;
  }

  h1 {
    letter-spacing: -2px;
  }

  .hero-stats {
    gap: 15px;
  }

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

  .toc a:nth-child(odd) {
    border-right: 0;
  }

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

  .content-section,
  .cards-section,
  .table-section,
  .faq-section {
    padding: 70px 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-bottom .container {
    flex-direction: column;
  }
}

@media (max-width: 450px) {

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    text-align: center;
  }

  .hero-stats {
    flex-wrap: wrap;
  }
}