/* ===== Design tokens ===== */
:root {
  --color-primary: #c2410c;          /* 플레이 CTA, 강조 */
  --color-primary-strong: #9a3412;
  --color-background: #faf7f2;
  --color-surface: #ffffff;
  --color-surface-muted: #f1ece4;
  --color-text: #1f1b16;
  --color-muted: #5c544a;            /* 흰 배경 대비 7:1 이상 */
  --color-border: #e6dfd4;
  --color-focus: #2563eb;
  --color-error: #b42318;

  --font-sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
    "Apple SD Gothic Neo", "Malgun Gothic", "Segoe UI", system-ui, sans-serif;

  --text-caption: 0.8125rem;
  --text-body: 1rem;
  --text-small: 0.875rem;
  --text-card-title: 1rem;
  --text-page: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2.5rem;
  --spacing-2xl: 4rem;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  --shadow-card: 0 1px 2px rgb(31 27 22 / 0.06);
  --shadow-card-hover: 0 12px 28px -12px rgb(31 27 22 / 0.22);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-fast: 160ms;
  --duration-base: 280ms;

  --container: 1120px;
  --gutter: 16px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-background);
  word-break: keep-all;
  overflow-wrap: anywhere;
}

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

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.skip-link {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  z-index: 10;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-text);
  color: #fff;
  border-radius: var(--radius-sm);
  transform: translateY(-200%);
}
.skip-link:focus { transform: none; }

/* ===== Header ===== */
.site-header {
  padding-block: var(--spacing-xl) var(--spacing-lg);
}

.page-title {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-sm);
  margin: 0;
  font-size: var(--text-page);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-count {
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: 0;
  color: var(--color-muted);
}

.page-lead {
  margin: var(--spacing-xs) 0 0;
  font-size: 0.9375rem;
  color: var(--color-muted);
}

.site-header .container > * {
  animation: rise var(--duration-base) var(--ease-out) both;
}
.site-header .page-lead { animation-delay: 60ms; }

main { outline: none; padding-bottom: var(--spacing-xl); }

/* ===== Grid ===== */
.game-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-md) var(--spacing-sm);
}

@media (min-width: 720px) {
  .game-grid { gap: var(--spacing-lg) var(--spacing-md); }
}

@media (min-width: 960px) {
  .game-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* 좁은 폰: 카드 전체가 링크라 "플레이" 라벨은 생략 */
@media (max-width: 479px) {
  .game-card__footer .game-card__cta { display: none; }
}

/* ===== Game card ===== */
.game-card {
  animation: rise 520ms var(--ease-out) both;
  animation-delay: calc(var(--i, 0) * 60ms + 80ms);
}

.game-card__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition:
    transform var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    border-color var(--duration-fast) ease;
}

.game-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--color-surface-muted);
  overflow: hidden;
}

.game-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms var(--ease-out), opacity var(--duration-base) ease;
}

/* 로딩: 이미지가 올 때까지 은은한 shimmer */
.game-card__media.is-loading .game-card__img { opacity: 0; }
.game-card__media.is-loading::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 30%, rgb(255 255 255 / 0.6) 50%, transparent 70%);
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
}

/* 오류 / 이미지 없음 */
.game-card__fallback {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  color: var(--color-muted);
  font-size: var(--text-caption);
}
.game-card__fallback-emoji { font-size: 2rem; line-height: 1; }
.game-card__media.is-error .game-card__fallback { display: flex; }

.game-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
}

.game-card__title {
  margin: 0;
  font-size: var(--text-card-title);
  font-weight: 700;
  line-height: 1.4;
}

.game-card__link {
  color: inherit;
  text-decoration: none;
}
/* 카드 전체를 클릭 영역으로 확장 */
.game-card__link::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
}
.game-card__link:focus-visible { outline: none; }
.game-card__inner:has(.game-card__link:focus-visible) {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.game-card__desc {
  margin: 0;
  font-size: var(--text-small);
  line-height: 1.5;
  color: var(--color-muted);
}

.game-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  margin-top: auto;
  padding-top: var(--spacing-xs);
  font-size: var(--text-caption);
}

.game-card__platform {
  font-size: var(--text-caption);
  color: var(--color-muted);
}

.game-card__cta {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

.game-card__arrow {
  display: inline-block;
  transition: transform var(--duration-base) var(--ease-out);
}


/* 상호작용: hover(마우스) / focus(키보드) / active(터치) */
@media (hover: hover) {
  .game-card__inner:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-card-hover);
    border-color: #d8cfc1;
  }
  .game-card__inner:hover .game-card__img { transform: scale(1.04); }
  .game-card__inner:hover .game-card__arrow { transform: translateX(4px); }
  .game-card__inner:hover .game-card__cta { color: var(--color-primary-strong); }
}
.game-card__inner:has(.game-card__link:focus-visible) .game-card__arrow { transform: translateX(4px); }
.game-card__inner:has(.game-card__link:active) { transform: scale(0.99); }

/* ===== States ===== */
.state {
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
}
.state-title { margin: 0; font-weight: 700; font-size: 1.125rem; }
.state-text { margin: var(--spacing-sm) 0 0; color: var(--color-muted); }
.state code {
  padding: 1px 6px;
  background: var(--color-surface-muted);
  border-radius: var(--radius-sm);
  font-size: 0.9em;
}


/* ===== Animations ===== */
@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}
@keyframes shimmer {
  from { background-position: 150% 0; }
  to { background-position: -50% 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-delay: 0ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }
}

/* ===== Larger screens ===== */
@media (min-width: 1024px) {
  :root { --gutter: 32px; }
  .site-header { padding-block: var(--spacing-2xl) var(--spacing-lg); }
}