/**
 * global.css — base site-wide styles
 * Mobile-first. BEM methodology for component classes.
 */

body {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-family-base);
  font-weight: var(--fw-regular);
  font-size: var(--fs-base);
}

/* ── Skip link ────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  z-index: 1000;
  padding: 12px 20px;
  background: var(--color-accent-lime);
  color: var(--color-btn-text-dark);
  font-weight: var(--fw-semibold);
  border-radius: 0 0 var(--radius-input) 0;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* ── Focus visibility ─────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-heading-accent);
  outline-offset: 2px;
}

/* ── Layout helpers ───────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-side-padding);
}

main {
  display: block;
  padding-bottom: var(--main-bottom-padding);
}

.section {
  padding-block: var(--space-section);
}

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

/* ── Typography ───────────────────────────────────────── */
h1 {
  font-size: var(--fs-h1);
  font-weight: var(--fw-extrabold);
  color: var(--color-white);
  line-height: 1.15;
}

h2 {
  font-size: var(--fs-h2);
  font-weight: var(--fw-bold);
  color: var(--color-heading-accent);
  line-height: var(--lh-h2);
  margin-bottom: var(--space-h2-text);
  position: relative;
  padding-left: 18px;
}

h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.15em;
  width: 4px;
  border-radius: 4px;
  background: var(--color-heading-accent);
}

h3 {
  font-size: var(--fs-h3);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  margin-bottom: var(--space-h3-text);
}

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

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

a.inline-link {
  color: var(--color-heading-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

a.inline-link:hover {
  color: var(--color-accent-lime);
}

ul.text-list,
ol.text-list {
  margin-bottom: var(--space-paragraph);
  padding-left: 1.25em;
  color: var(--color-text-primary);
}

ul.text-list {
  list-style: disc;
}

ol.text-list {
  list-style: decimal;
}

ul.text-list li,
ol.text-list li {
  margin-bottom: 8px;
}

/* ── Buttons ──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-button);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-base);
  white-space: nowrap;
  transition: transform var(--transition-fast), opacity var(--transition-fast), background var(--transition-fast);
}

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

.btn--primary {
  background: var(--btn-primary-gradient);
  color: var(--color-btn-text-dark);
}

.btn--primary:hover {
  opacity: 0.92;
}

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

.btn--secondary:hover {
  border-color: var(--color-heading-accent);
  color: var(--color-heading-accent);
}

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

/* ── Tables ───────────────────────────────────────────── */
.data-table-wrap {
  overflow-x: auto;
  margin-bottom: var(--space-paragraph);
  border-radius: var(--radius-input);
}

.data-table {
  width: 100%;
  min-width: 420px;
  background: var(--color-card-bg);
  border-radius: var(--radius-input);
  overflow: hidden;
}

.data-table caption {
  text-align: left;
  padding: var(--space-card-padding) var(--space-card-padding) 0;
  color: var(--color-white);
  font-weight: var(--fw-semibold);
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 14px var(--space-card-padding);
  font-size: var(--fs-small);
  border-bottom: 1px solid rgba(169, 185, 182, 0.12);
}

.data-table th {
  color: var(--color-white);
  font-weight: var(--fw-semibold);
  background: var(--color-bg-dark);
}

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

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

/* ── Breadcrumb ───────────────────────────────────────── */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-small);
  color: var(--color-text-primary);
  margin-bottom: 16px;
}

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

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

.breadcrumb__sep {
  opacity: 0.6;
}

.breadcrumb__current {
  color: var(--color-heading-accent);
}

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

/* ── 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;
}

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

/* ── Bonus cards grid (Bonus page) ───────────────────────
   CSS Grid, 4 columns × 2 rows on desktop, 1 column on mobile. */
.bonus-grid-section h2 {
  margin-bottom: var(--space-card-gap);
}

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

.bonus-card {
  display: flex;
  flex-direction: column;
  background: var(--color-card-bg);
  border-radius: var(--radius-card);
  padding: var(--space-card-padding);
}

.bonus-card__img {
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-card) - 12px);
  margin-bottom: 16px;
  background: var(--color-bg-dark);
}

.bonus-card__title {
  margin-bottom: 8px;
}

.bonus-card__text {
  color: var(--color-text-primary);
  margin-bottom: 20px;
  flex-grow: 1;
}

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

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

/* ── Platform grid (Android / iOS — App page) ────────────
   CSS Grid, 2 columns on desktop, 1 column on mobile. */
.platform-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-card-gap);
}

.platform-card {
  background: var(--color-card-bg);
  border-radius: var(--radius-card);
  padding: var(--space-card-padding);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.platform-card__icon {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-input);
  margin-bottom: 16px;
}

.platform-card p {
  margin-bottom: 16px;
}

.platform-card .data-table-wrap {
  width: 100%;
}

/* Key/value spec tables (Android/iOS requirements) — fit the card's
   width instead of forcing horizontal scroll, and let long values wrap
   instead of being cut off. */
.platform-card .data-table {
  min-width: 0;
  table-layout: fixed;
}

.platform-card .data-table td:first-child {
  width: 40%;
  color: var(--color-white);
  font-weight: var(--fw-semibold);
}

.platform-card .data-table td:last-child {
  width: 60%;
  overflow-wrap: break-word;
  word-break: break-word;
  white-space: normal;
}

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

/* ── 404 page ─────────────────────────────────────────── */
.not-found {
  padding-block: clamp(60px, 12vw, 140px);
}

.not-found__inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.not-found__code {
  font-size: clamp(80px, 16vw, 160px);
  font-weight: var(--fw-extrabold);
  line-height: 1;
  color: var(--color-heading-accent);
  margin-bottom: 8px;
}

.not-found h1 {
  margin-bottom: 16px;
}

.not-found__text {
  max-width: 560px;
  margin-bottom: 28px;
}