/* Global base styles — mobile-first */

body {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-base);
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1rem;
}

@media (min-width: 768px) {
  .container {
    padding-inline: 2rem;
  }
}

h1,
h2,
h3 {
  color: var(--color-white);
  font-weight: var(--font-weight-heading);
  line-height: 1.25;
}

h1 {
  font-size: var(--font-size-h1);
}

h2 {
  font-size: var(--font-size-h2);
  color: var(--color-heading-accent);
  position: relative;
  padding-bottom: 0.6rem;
  margin-bottom: var(--space-h2-text);
}

h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 64px;
  height: 3px;
  background: var(--color-btn-gradient);
  border-radius: 2px;
}

h3 {
  font-size: var(--font-size-h3);
  color: var(--color-white);
}

p {
  margin-bottom: var(--space-paragraph);
}

p:last-child {
  margin-bottom: 0;
}

a {
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-heading-accent);
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  background: var(--color-heading-accent);
  color: var(--color-btn-text);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-card);
  font-weight: var(--font-weight-btn);
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-heading-accent);
  outline-offset: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-card);
  font-weight: var(--font-weight-btn);
  font-size: clamp(0.9rem, 1.3vw, 1rem);
  white-space: nowrap;
  transition: transform var(--transition-base), filter var(--transition-base), background var(--transition-base);
}

.btn--primary {
  background: var(--color-btn-gradient);
  color: var(--color-btn-text);
  border: none;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  filter: brightness(1.1);
  color: var(--color-btn-text);
}

.btn--secondary {
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-btn-secondary-border);
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
  background: var(--color-accent-blue);
  color: var(--color-white);
}

.btn--block {
  width: 100%;
}

/* Sections */
.section {
  padding-block: calc(var(--space-section) / 2);
}

@media (min-width: 768px) {
  .section {
    padding-block: var(--space-section);
  }
}

.section__intro {
  max-width: 90ch;
}

.section__image {
  border-radius: var(--radius-card);
  overflow: hidden;
  margin-block: var(--space-paragraph);
}

.section__image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Content section layout: image after H2, before text (mobile + desktop both, per spec image order after H2) */
.content-section__body {
  display: flex;
  flex-direction: column;
}

.content-section__text h3 {
  margin-top: var(--space-paragraph);
  margin-bottom: var(--space-h3-text);
}

@media (min-width: 1024px) {
  .content-section--with-image .content-section__body {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-paragraph);
  }
}

/* Cards */
.card {
  background: var(--color-card-bg);
  border-radius: var(--radius-card);
  padding: var(--space-card-padding);
  border: var(--border-card);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--color-text-primary);
}

.breadcrumb a {
  color: var(--color-text-primary);
}

.breadcrumb a:hover {
  color: var(--color-heading-accent);
}

.breadcrumb__sep {
  color: var(--color-btn-secondary-border);
}

.breadcrumb__current {
  color: var(--color-white);
}

/* Tables */
.data-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-card);
  background: var(--color-card-bg);
  min-width: 0;
  margin-top: var(--space-paragraph);
  margin-bottom: var(--space-paragraph);
}

.data-table {
  width: 100%;
  min-width: 480px;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--color-accent-blue);
  font-size: 0.95rem;
}

.data-table th {
  background: var(--color-accent-blue);
  color: var(--color-white);
  font-weight: var(--font-weight-btn);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table td {
  color: var(--color-text-primary);
}

/* Grids */
.grid {
  display: grid;
  gap: var(--space-card-gap);
  grid-template-columns: 1fr;
}

@media (min-width: 480px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Contextual in-text links (internal linking within body copy) */
.prose a {
  color: var(--color-heading-accent);
  text-decoration: underline;
  text-decoration-color: rgba(255, 63, 79, 0.45);
  text-underline-offset: 2px;
  font-weight: var(--font-weight-medium);
}

.prose a:hover {
  color: var(--color-white);
  text-decoration-color: currentColor;
}

/* Lists inside prose */
.prose ul,
.prose ol {
  padding-left: 1.25rem;
  margin-bottom: var(--space-paragraph);
  list-style: disc;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.prose ol {
  list-style: decimal;
}

.prose ul li,
.prose ol li {
  color: var(--color-text-primary);
}

/* Age badge (footer) */
.badge-18 {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--color-accent-light-bg);
  color: var(--color-btn-text);
  font-weight: var(--font-weight-heading);
  font-size: 0.95rem;
}

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

.text-center {
  text-align: center;
}

main {
  display: block;
  overflow-x: clip;
}