* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-family-text);
  background: var(--color-surface-bg);
  color: var(--color-text);
  transition:
    background 0.2s ease,
    color 0.2s ease;
}

.backdrop {
  min-height: 100vh;
  padding: 3rem 1rem 5rem;
  display: flex;
  justify-content: center;
}

.modal {
  width: 100%;
  max-width: 960px;
  position: relative;
}

a {
  &.floating-button {
    border-radius: 50%;
    background-color: var(--color-absolute-max);
    color: var(--color-absolute-min);
    position: fixed;
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    &.top-right {
      top: 0.5rem;
      right: 0.5rem;
    }
    &:hover {
      background: var(--color-surface);
      color: var(--color-text);
    }
    &:focus-visible {
      outline: 2px solid var(--focus);
      outline-offset: 2px;
    }
  }
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  box-shadow: var(--color-shadow);
  margin-bottom: 1.25rem;
  overflow: hidden;
}

.card-header {
  padding: 1.75rem 2rem 0;
}

.card-body {
  padding: 1.5rem 2rem 2rem;
}

@media (min-width: 900px) {
  .card-header {
    padding: 2.25rem 4rem 0;
  }
  .card-body {
    padding: 1.75rem 4rem 2.5rem;
  }
}

h1.page-title {
  text-align: center;
  margin: 0 0 28px;
  color: var(--color-text);
}

hr.rule {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0 0 1.25rem;
}

p {
  color: var(--color-text-subtle);
  line-height: 1.6;
  margin: 0 0 14px;
  font-size: var(--font-size-base);
  text-wrap: pretty;
}
p:last-child {
  margin-bottom: 0;
}

.version-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.25rem;
}
@media (max-width: 620px) {
  .version-grid {
    grid-template-columns: 1fr;
  }
}

.version-card {
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
}

.version-label {
  font-size: var(--font-size-md);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin: 0 0 0.6rem;
}

.version-card p {
  font-size: var(-font-size-base);
}

.version-shot {
  margin-top: auto;
  padding: 1rem 0.5rem;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  border-radius: 0.6rem;
  overflow: hidden;
}
.version-shot img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}
.version-caption {
  margin: 0.5rem 0 0;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-align: center;
}

.closing-line {
  margin-top: 1.25rem;
  font-size: var(--font-size-base);
  color: var(--color-text);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem 1.75rem;
  margin-top: 1.25rem;
}
@media (max-width: 620px) {
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 420px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

.feature {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.feature-icon {
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-success-soft);
  color: var(--color-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-icon svg {
  width: 18px;
  height: 18px;
}

.feature-title {
  font-size: var(--font-size-md);
  text-transform: capitalize;
  color: var(--color-text-subtle);
  font-weight: bold;
  margin: 0 0 0.25rem;
}
.feature-desc {
  font-size: var(--font-size-md);
  color: var(--color-text-subtle);
  margin: 0;
  line-height: 1.5;
}

/* Contact form */
.field {
  margin-bottom: 1rem;
}
.field label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  font: inherit;
  font-size: var(--font-size-md);
  padding: 0.5rem 0.75rem;
  border-radius: 0.25rem;
  border: 1px solid var(--color-border);
  background: var(--color-surface-soft);
  color: var(--color-text);
}
.field textarea {
  resize: vertical;
  min-height: 90px;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-focus);
  box-shadow: 0 0 0 0.1rem var(--color-focus);
}
.field input[aria-invalid='true'],
.field textarea[aria-invalid='true'],
.field select[aria-invalid='true'] {
  border-color: var(--color-danger);
}
.field-error {
  display: none;
  font-size: var(--font-size-sm);
  color: var(--color-danger);
  margin-top: 0.4rem;
}
.field-error.show {
  display: block;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 520px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.btn-primary {
  appearance: none;
  border: none;
  background: var(--color-accent);
  color: var(--true-white);
  font: inherit;
  font-size: var(--font-size-md);
  font-weight: 700;
  padding: 0.75rem 1.5rem;
  border-radius: 2rem;
  cursor: pointer;
}
.btn-primary:hover {
  filter: brightness(0.95);
}
.btn-primary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}
.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-status {
  display: none;
  margin-top: 1rem;
  padding: 0.75rem 0.875rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
}
.form-status.success {
  display: block;
  background: var(--color-success-soft);
  color: var(--color-success);
}
.form-status.error {
  display: block;
  background: var(--color-danger-soft);
  color: var(--danger);
}

.char-count {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: 0.25rem;
  text-align: right;
}

/* Footer-treated legal sections */
.footer-card {
  background: transparent;
  box-shadow: none;
  border: none;
}
.footer-card .card-body {
  padding: 1.25rem 2rem 0;
}

@media (min-width: 900px) {
  .footer-card .card-body {
    padding: 1.25rem 4rem 0;
  }
}
.legal-section {
  margin-bottom: 1.25rem;
}
.legal-section:last-child {
  margin-bottom: 0;
}
.legal-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin: 0 0 0.4rem;
}
.legal-section p {
  font-size: var(--font-size-sm);
  color: var(--color-text-subtle);
  line-height: 1.55;
  max-width: none;
  &.acknowledgements {
    margin-bottom: 0.125rem;
  }
}
.legal-section a {
  color: var(--color-text-subtle);
}
.legal-section a:hover {
  color: var(--color-accent);
}