:root {
  --ka-primary: #c62828;
  --ka-primary-dark: #9f1f1f;
  --ka-primary-light: #fff1f1;
  --ka-ink: #17202a;
  --ka-muted: #667085;
  --ka-border: #e8eaed;
  --ka-radius: 0.5rem;
  --ka-shadow: 0 0.75rem 2rem rgba(16, 24, 40, 0.08);
  --ka-shadow-hover: 0 1rem 2.5rem rgba(16, 24, 40, 0.14);

  --bs-primary: var(--ka-primary);
  --bs-primary-rgb: 198, 40, 40;
  --bs-link-color: var(--ka-primary);
  --bs-link-hover-color: var(--ka-primary-dark);
  --bs-primary-text-emphasis: var(--ka-primary-dark);
  --bs-primary-bg-subtle: var(--ka-primary-light);
  --bs-primary-border-subtle: #f2bcbc;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--ka-ink);
  font-family: "Roboto", sans-serif;
  background: #fff;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--ka-ink);
  /*letter-spacing: -0.025em;*/
  line-height: 1.2;
}

h2 {
  font-size: 2.25rem;
}

a {
  color: var(--ka-primary);
  transition:
    color 180ms ease,
    opacity 180ms ease;
}

a:hover {
  color: var(--ka-primary-dark);
}

/* Navigation */
/*.navbar {
  background: rgba(17, 24, 39, 0.92) !important;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.navbar-brand {
  letter-spacing: -0.02em;
}

/*.navbar-brand img {
  border-radius: 0.5rem;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.2);
}*/

.navbar .nav-link {
  color: rgba(255, 255, 255, 0.72);
  font-weight: 500;
  margin-left: 0.35rem;
  padding-inline: 0.85rem !important;
  border-radius: 999px;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: #fff;
  /*background: rgba(255, 255, 255, 0.1);*/
}

/* Hero */
header.bg-dark {
  position: relative;
  overflow: hidden;
  /*background:
    radial-gradient(circle at 15% 20%, rgba(198, 40, 40, 0.3), transparent 32%),
    radial-gradient(circle at 90% 80%, rgba(198, 40, 40, 0.18), transparent 30%),
    linear-gradient(135deg, #111827 0%, #1f2937 100%) !important;*/
}

header.bg-dark::after {
  position: absolute;
  inset: auto -10% -70% 35%;
  height: 100%;
  content: "";
  background: rgba(255, 255, 255, 0.04);
  border-radius: 50%;
  transform: rotate(-12deg);
}

header .container {
  position: relative;
  z-index: 1;
}

header h1 {
  max-width: 950px;
  margin-inline: auto;
  color: #fff;
  font-size: clamp(2.25rem, 5vw, 4.5rem);
  /*letter-spacing: -0.045em;*/
}

header .lead {
  max-width: 760px;
  margin-inline: auto;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
}

/* Buttons */
.btn {
  /*border-radius: 0.65rem;*/
  border-radius: 0.45rem;
  font-weight: 600;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease;
}

/*.btn:hover {
  transform: translateY(-2px);
}*/

.btn-primary {
  --bs-btn-bg: var(--ka-primary);
  --bs-btn-border-color: var(--ka-primary);
  --bs-btn-hover-bg: var(--ka-primary-dark);
  --bs-btn-hover-border-color: var(--ka-primary-dark);
  --bs-btn-active-bg: #841919;
  --bs-btn-active-border-color: #841919;
  /*box-shadow: 0 0.4rem 1rem rgba(198, 40, 40, 0.22);*/
}

/*.btn-primary:hover {
  box-shadow: 0 0.6rem 1.25rem rgba(198, 40, 40, 0.3);
}*/

.btn-secondary {
  --bs-btn-color: #fff;
  --bs-btn-bg: rgba(255, 255, 255, 0.1);
  --bs-btn-border-color: rgba(255, 255, 255, 0.35);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: rgba(255, 255, 255, 0.2);
  --bs-btn-hover-border-color: rgba(255, 255, 255, 0.6);
}

/* Sections */
main > section {
  position: relative;
}

main > section > .container {
  max-width: 1180px;
}

main > section:first-child {
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(135deg, #fff, #fff1f1) border-box;
}

main > section:first-child .lead {
  max-width: 850px;
  margin-inline: auto;
  color: var(--ka-muted);
}

/* Feature section */
section.bg-secondary-subtle {
  background: #f7f8fa !important;
}

section.bg-secondary-subtle h2,
section.bg-secondary-subtle h3 {
  color: var(--ka-ink) !important;
}

.card {
  border: 1px solid var(--ka-border);
  border-radius: var(--ka-radius);
  box-shadow: var(--ka-shadow);
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease;
}

.card:hover {
  border-color: rgba(198, 40, 40, 0.25);
  box-shadow: var(--ka-shadow-hover);
  transform: translateY(-5px);
}

.card-body {
  border-radius: inherit;
}

.card h3,
.card h4 {
  color: var(--ka-ink);
}

.card h3::before {
  display: block;
  width: 2.5rem;
  height: 0.2rem;
  margin-bottom: 1rem;
  content: "";
  background: var(--ka-primary);
  border-radius: 999px;
}

.card p {
  color: var(--ka-muted);
}

/* Pricing */
#pricing {
  background: #fff;
}

#pricing .card {
  overflow: hidden;
}

#pricing .card h4 {
  margin-bottom: 1rem;
  font-size: 1.35rem;
}

#pricing .card h4::after {
  display: block;
  width: 2.5rem;
  height: 0.2rem;
  margin: 0.75rem auto 0;
  content: "";
  background: var(--ka-primary);
  border-radius: 999px;
}

#pricing .card p {
  min-height: 9rem;
}

/* Explore section */
main > section.bg-secondary-subtle .card {
  background: #fff;
}

main > section.bg-secondary-subtle .card h3 {
  color: var(--ka-ink) !important;
}

main > section.bg-secondary-subtle .card p {
  color: var(--ka-muted);
}

/* FAQ */
.accordion {
  overflow: hidden;
  border: 1px solid var(--ka-border);
  border-radius: var(--ka-radius);
  box-shadow: var(--ka-shadow);
}

.accordion-item {
  border-color: var(--ka-border);
}

.accordion-button {
  padding: 1.25rem 1.5rem;
  color: var(--ka-ink);
  font-weight: 600;
}

.accordion-button:not(.collapsed) {
  color: var(--ka-primary);
  background: var(--ka-primary-light);
  box-shadow: none;
}

.accordion-button:focus {
  border-color: var(--ka-primary);
  box-shadow: 0 0 0 0.25rem rgba(198, 40, 40, 0.15);
}

.accordion-body {
  color: var(--ka-muted);
}

/* Call to action and footer */
/*section.bg-dark-subtle {
  background:
    radial-gradient(circle at 10% 0%, rgba(198, 40, 40, 0.2), transparent 32%),
    #111827 !important;
}*/

section.bg-dark-subtle h2,
section.bg-dark-subtle p {
  color: #fff !important;
}

/*footer.bg-dark {
  background: #0b1120 !important;
  color: rgba(255, 255, 255, 0.68) !important;
}*/

/* Responsive adjustments */
@media (max-width: 991.98px) {
  .navbar .nav-link {
    margin: 0.15rem 0;
  }

  header .container {
    padding-block: 3rem !important;
  }
}

@media (max-width: 575.98px) {
  header h1 {
    font-size: 2.35rem;
  }

  header .d-flex {
    flex-direction: column;
    align-items: stretch;
    max-width: 20rem;
    margin-inline: auto;
  }

  header .btn {
    width: 100%;
  }

  .card-body {
    padding: 1.5rem !important;
  }

  #pricing .card p {
    min-height: auto;
  }
}

.terms-content {
  max-width: 850px;
  color: var(--ka-muted);
}

.terms-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 0.85rem;
  color: var(--ka-ink);
  font-size: 1.45rem;
}

.terms-content p,
.terms-content li {
  line-height: 1.75;
}

.terms-content ul {
  padding-left: 1.5rem;
}

.terms-content strong {
  color: var(--ka-ink);
}