*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-family-body);
  font-weight: var(--font-weight-normal);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
}

h1, h2, h3 {
  font-family: var(--font-family-display);
  font-weight: 400;
  line-height: var(--line-height-tight);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-tight);
  margin: 0 0 var(--space-3);
}

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

a:focus-visible,
button:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-family-display);
  font-weight: 400;
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  border: var(--border-width) solid var(--color-border-primary);
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--easing-default),
              border-color var(--duration-fast) var(--easing-default),
              color var(--duration-fast) var(--easing-default),
              transform var(--duration-fast) var(--easing-default);
}

.btn--primary {
  background: var(--color-accent-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-accent-primary);
}

.btn--primary:hover { background: var(--color-accent-primary-hover); border-color: var(--color-accent-primary-hover); }
.btn--primary:active { background: var(--color-accent-primary-active); border-color: var(--color-accent-primary-active); transform: translateY(1px); }

.btn--secondary {
  background: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border-primary);
}

.btn--secondary:hover { background: var(--color-text-primary); color: var(--color-bg-primary); }
.btn--secondary:active { transform: translateY(1px); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-bg-primary);
  box-shadow: 0 4px 16px rgba(10, 10, 10, 0.18);
}

.nav {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  position: relative;
}

.nav__logo { display: inline-flex; }
.nav__logo .khan-box { font-size: 1.3rem; }
.footer__brand .khan-box { font-size: 1.15rem; }

.logo-reveal {
  display: inline-flex;
  align-items: center;
}

.khan-box {
  display: inline-block;
  background: var(--khan-red);
  color: var(--color-text-inverse);
  border: var(--border-width) solid transparent;
  font-family: var(--font-family-display);
  font-weight: 400;
  text-transform: uppercase;
  line-height: 1;
  padding: 0.45em 0.6em;
  transition: background-color var(--duration-fast) var(--easing-default),
              border-color var(--duration-fast) var(--easing-default),
              color var(--duration-fast) var(--easing-default);
}

.logo-reveal:hover .khan-box,
.logo-reveal:focus-visible .khan-box {
  background: transparent;
  border-color: var(--khan-red);
  color: var(--khan-red);
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: var(--border-width) solid var(--color-border-primary);
  padding: 0;
  cursor: pointer;
}

.nav__toggle-bar {
  position: relative;
  display: block;
  width: 22px;
  height: 6px;
  background: var(--color-text-primary);
}

.nav__toggle-bar::before,
.nav__toggle-bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 6px;
  background: var(--color-text-primary);
}

.nav__toggle-bar::before { top: -9px; }
.nav__toggle-bar::after { top: 9px; }

.nav__links {
  display: none;
  flex-basis: 100%;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-4);
  font-family: var(--font-family-display);
  font-weight: 400;
  font-size: var(--font-size-xl);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.nav__links.is-open { display: flex; }

.nav__links a {
  display: block;
  padding: var(--space-3) 0;
}

@media (min-width: 768px) {
  .nav__toggle { display: none; }

  .nav__links {
    display: flex;
    flex-basis: auto;
    flex-direction: row;
    gap: var(--space-5);
    padding-top: 0;
    font-size: var(--font-size-md);
  }

  .nav__links a {
    padding: 0;
  }

  .nav__links a:hover { color: var(--color-accent-primary); }
}

.section {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: var(--space-8) var(--space-5);
}

.hero {
  position: relative;
  overflow: hidden;

  max-width: none;
  margin: 0;
  padding-top: var(--space-9);
  padding-bottom: var(--space-9);
  padding-left: 0;
  padding-right: 0;

  min-height: 620px;
}

.hero__shape {
  position: absolute;
  top: -15%;
  right: 0;
  width: 70vw;
  height: 60vw;
  max-width: 900px;
  max-height: 520px;
  background: var(--color-accent-primary);
  transform: rotate(var(--rotate-lg));
  z-index: 0;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.hero__content {
  max-width: 40rem;
}

.hero__headline {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-5);
}

.hero__headline span { display: block; }

.hero__headline-accent {
  background: var(--color-accent-primary);
  color: var(--color-text-inverse);
  display: inline-block;
  padding: 0 var(--space-2);
  transform: rotate(-1.5deg);
}

.hero__subhead {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  max-width: 32rem;
  margin: 0 0 var(--space-6);
}

.hero__cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (min-width: 480px) {
  .hero__cta { flex-direction: row; flex-wrap: wrap; }
}

@media (min-width: 768px) {
  .hero { padding-top: var(--space-10); padding-bottom: var(--space-10); }
  .hero__shape { top: -25%; }
}

.value__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.value__item {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  border-top: var(--border-width) solid var(--color-border-primary);
}

.value__item:last-child { border-bottom: var(--border-width) solid var(--color-border-primary); }

.value__mark {
  font-family: var(--font-family-display);
  color: var(--color-accent-primary);
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  width: 2.5rem;
}

.value__item h2 { margin: 0; font-size: var(--font-size-xl); }

@media (min-width: 768px) {
  .value__item h2 { font-size: var(--font-size-2xl); }
}

.services__title { margin-bottom: var(--space-6); }

.tag-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.tag {
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-family-display);
  font-weight: 400;
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  white-space: nowrap;
  transition: transform var(--duration-fast) var(--easing-default);
}

.tag--red { background: var(--color-accent-primary); color: var(--color-text-inverse); }
.tag--black { background: var(--color-accent-secondary); color: var(--color-text-inverse); }

.tag--r1 { transform: rotate(-3deg); }
.tag--r2 { transform: rotate(3deg); }
.tag--r3 { transform: rotate(-4deg); }
.tag--r4 { transform: rotate(3deg); }

@media (min-width: 768px) {
  .tag-grid { gap: var(--space-4) var(--space-5); }
  .tag { padding: var(--space-3) var(--space-5); }
  .tag--r1 { transform: rotate(calc(var(--rotate-sm) * -1)); }
  .tag--r2 { transform: rotate(var(--rotate-sm)); }
  .tag--r3 { transform: rotate(calc(var(--rotate-md) * -1)); }
  .tag--r4 { transform: rotate(var(--rotate-sm)); }
  .tag:hover { transform: rotate(0deg) scale(1.04); }
}

.how-it-works h2 { margin-bottom: var(--space-6); }

.tracks {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 768px) {
  .tracks { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
}

.track {
  border: var(--border-width) solid var(--color-border-primary);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
}

.track--custom { background: var(--color-bg-secondary); }
.track--shop { background: var(--khan-black); color: var(--color-text-inverse); }

.track__title {
  display: inline-block;
  align-self: flex-start;
  background: var(--color-accent-primary);
  color: var(--color-text-inverse);
  padding: var(--space-1) var(--space-3);
  transform: rotate(calc(var(--rotate-sm) * -1));
  margin-bottom: var(--space-5);
}

.track__steps {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  counter-reset: step;
}

.track__steps li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-family: var(--font-family-display);
  font-weight: 400;
  text-transform: uppercase;
  font-size: var(--font-size-md);
  border-top: 1px solid var(--color-border-secondary);
}

.track__steps li:first-child { border-top: none; }

.track__step-num {
  color: var(--color-accent-primary);
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.track__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-5);
}

.track--shop .track__desc { color: #B8B8B8; }
.track--shop .track__steps li { border-top-color: #3A3A3A; }
.track--shop .btn--secondary { border-color: var(--color-text-inverse); color: var(--color-text-inverse); }
.track--shop .btn--secondary:hover { background: var(--color-text-inverse); color: var(--khan-black); }

.track { margin-top: auto; }
.track .btn { margin-top: auto; align-self: flex-start; }

.gallery h2 { margin-bottom: var(--space-6); }

.photo-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.photo-grid__item {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  cursor: zoom-in;
}

.photo-grid__item:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.photo-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  border: var(--border-width) solid var(--color-border-primary);
}

@media (min-width: 640px) {
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .photo-grid { grid-template-columns: repeat(3, 1fr); }
}

.shop h2 { margin-bottom: var(--space-6); }

.product-card {
  display: grid;
  grid-template-columns: 1fr;
  border: var(--border-width) solid var(--color-border-primary);
  background: var(--color-bg-secondary);
  max-width: 640px;
}

@media (min-width: 640px) {
  .product-card { grid-template-columns: 1fr 1fr; }
}

.product-card__media {
  aspect-ratio: 4 / 3;
  background: var(--color-accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-bottom: var(--border-width) solid var(--color-border-primary);
  overflow: hidden;
  padding: 0;
  width: 100%;
  cursor: zoom-in;
}

.product-card__media:focus-visible {
  outline: none;
  box-shadow: inset var(--shadow-focus);
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 640px) {
  .product-card__media {
    aspect-ratio: auto;
    border-bottom: none;
    border-right: var(--border-width) solid var(--color-border-primary);
  }
}

.product-card__body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
}

.product-card__name {
  font-family: var(--font-family-display);
  font-weight: 400;
  text-transform: uppercase;
  font-size: var(--font-size-lg);
  margin: 0 0 var(--space-3);
}

.product-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-4);
}

.product-card__price {
  font-family: var(--font-family-display);
  font-weight: 400;
  font-size: var(--font-size-xl);
  color: var(--color-accent-primary);
  margin: 0 0 var(--space-5);
}

.product-card__price-note {
  font-family: var(--font-family-body);
  font-weight: var(--font-weight-normal);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.product-card .btn { align-self: flex-start; }

.cta {
  text-align: center;
  background: var(--khan-black);
  color: var(--color-text-inverse);
  max-width: none;
}

.cta h2 { max-width: 40rem; margin-inline: auto; }

.cta .hero__cta {
  justify-content: center;
  align-items: center;
  max-width: 28rem;
  margin: 0 auto;
}

.cta .btn--secondary { border-color: var(--color-text-inverse); color: var(--color-text-inverse); }
.cta .btn--secondary:hover { background: var(--color-text-inverse); color: var(--khan-black); }

@media (min-width: 480px) {
  .cta .hero__cta { flex-direction: row; justify-content: center; }
}

.site-footer {
  padding: var(--space-6) var(--space-5) var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  border-top: var(--border-width) solid var(--color-border-primary);
}

.site-footer a {
  color: var(--color-text-primary);
  text-decoration: underline;
  text-underline-offset: 0.15em;
  transition: color var(--duration-fast) var(--easing-default);
}

.site-footer a:hover { color: var(--color-accent-primary); }

.footer__top {
  max-width: var(--max-width-wide);
  margin: 0 auto var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

@media (min-width: 768px) {
  .footer__top {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  text-transform: uppercase;
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-wide);
}

.footer__nav a { text-decoration: none; }
.footer__nav a:hover { color: var(--color-accent-primary); }

@media (min-width: 768px) {
  .footer__nav { flex-direction: row; gap: var(--space-5); }
}

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (min-width: 768px) {
  .footer__contact { align-items: flex-end; text-align: right; }
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}

.contact-link svg { flex-shrink: 0; color: var(--color-text-secondary); transition: color var(--duration-fast) var(--easing-default); }
.contact-link:hover svg { color: var(--color-accent-primary); }

.footer__social {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.icon-link {
  display: inline-flex;
  align-items: center;
  color: var(--color-text-primary);
  transition: color var(--duration-fast) var(--easing-default);
}

.icon-link:hover { color: var(--color-accent-primary); }

.footer__bottom {
  text-align: center;
  margin: 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-secondary);
}