/* ===================================================
   게임 피드 (릴스/쇼츠형)
   ---------------------------------------------------
   한 화면 = 게임 하나. 위로 밀면 다음 게임.
   피드는 몰입형이라 테마와 상관없이 항상 어두운 화면입니다.
   데스크톱에서는 폰 비율(9:16) 기둥을 가운데에 띄웁니다.
   =================================================== */

:root {
  --bg:       #0b1120;
  --ink:      #f8fafc;
  --ink-soft: rgba(248, 250, 252, .78);
  --glass:    rgba(15, 23, 42, .55);
  --glass-hi: rgba(15, 23, 42, .78);
  --pill:     #d9f99d;
  --pill-ink: #1a2e05;
  --like:     #fb7185;

  /* 기둥 폭: 화면이 넓으면 9:16, 좁으면 꽉 채움 */
  --col: min(100vw, calc(100dvh * 9 / 16));

  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
          "Segoe UI", "Noto Sans KR", "Malgun Gothic", sans-serif;
}

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--pill); outline-offset: 3px; border-radius: 8px; }

/* ===== 상단 바 ===== */

.feed-top {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: var(--col);
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 14px 0;
  padding-top: max(14px, env(safe-area-inset-top));
  pointer-events: none;            /* 바 빈 곳은 아래 슬라이드가 터치를 받습니다 */
  transition: opacity .2s ease, transform .2s ease;
}
.feed-top > * { pointer-events: auto; }
body.is-playing .feed-top { opacity: 0; transform: translate(-50%, -12px); pointer-events: none; }
body.is-playing .feed-top > * { pointer-events: none; }

.tabs { display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; flex: 1; min-width: 0; }
.tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: none;
  padding: 8px 15px;
  border: 0;
  border-radius: 999px;
  background: var(--glass-hi);
  font-size: .92rem;
  font-weight: 600;
  white-space: nowrap;
  transition: background-color .15s ease, color .15s ease;
}
.tab.on { background: var(--pill); color: var(--pill-ink); }

.round-btn {
  flex: none;
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--glass-hi);
  border: 2px solid rgba(248, 250, 252, .35);
}
@media (max-width: 400px) {
  .feed-top { gap: 6px; padding-left: 10px; padding-right: 10px; }
  .round-btn, .acct.round .acct-avatar, .acct.round .acct-bell { width: 38px; height: 38px; }
  .acct { gap: 6px; }
  .acct.round .acct-btn { height: 38px; padding: 0 11px; }
}
.round-btn.upload { background: var(--pill); color: var(--pill-ink); border-color: transparent; }

/* ===== 피드 ===== */

.feed {
  height: 100vh;
  height: 100dvh;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  overscroll-behavior: contain;
  scrollbar-width: none;
}
.feed::-webkit-scrollbar { display: none; }
.feed.locked { overflow: hidden; }

.slide {
  position: relative;
  height: 100vh;
  height: 100dvh;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  justify-content: center;
  overflow: hidden;
}

/* 기둥(폰 화면) */
.col {
  position: relative;
  width: var(--col);
  height: 100%;
  overflow: hidden;
  background:
    radial-gradient(120% 70% at 50% 0%, color-mix(in srgb, var(--accent, #5eead4) 55%, transparent), transparent 70%),
    linear-gradient(180deg, color-mix(in srgb, var(--accent, #5eead4) 30%, #0b1120), #0b1120 85%);
}

/* 썸네일을 크게 흐려 배경으로 깝니다 */
.col .blur {
  position: absolute;
  inset: -40px;
  background-size: cover;
  background-position: center;
  filter: blur(36px) saturate(1.3);
  opacity: .45;
}
.col::after {                       /* 글자가 잘 읽히도록 아래쪽을 어둡게 */
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(2, 6, 23, .85));
  pointer-events: none;
}

/* ===== 포스터 (시작 전 화면) ===== */

.poster {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 26px;
  padding: 90px 22px 220px;
  border: 0;
  background: none;
  width: 100%;
}
.poster .shot {
  width: 100%;
  aspect-ratio: 1024 / 500;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: 0 24px 50px -20px rgba(0, 0, 0, .8);
  border: 1px solid rgba(255, 255, 255, .14);
  transition: transform .2s ease;
}
.poster:active .shot { transform: scale(.98); }
.poster .initial {
  width: 46%;
  aspect-ratio: 1;
  display: grid; place-items: center;
  border-radius: 28%;
  background: var(--accent, #5eead4);
  color: #0b1120;
  font-size: clamp(3rem, 12vw, 5rem);
  font-weight: 800;
}
.start-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  background: rgba(15, 23, 42, .72);
  border: 1px solid rgba(255, 255, 255, .2);
  font-size: 1.12rem;
  font-weight: 700;
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.05); }
}

/* ===== 게임 정보 (왼쪽 아래) ===== */

.info {
  position: absolute;
  z-index: 2;
  left: 18px;
  right: 92px;
  bottom: max(26px, env(safe-area-inset-bottom));
  pointer-events: none;
}
.info h2 {
  margin: 0 0 4px;
  font-size: clamp(1.5rem, 6.4vw, 2rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.2;
  text-shadow: 0 2px 10px rgba(0, 0, 0, .45);
}
.info .desc {
  margin: 0 0 12px;
  color: var(--ink-soft);
  font-size: .95rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.info .best {
  display: inline-block;
  margin: 0 0 10px;
  padding: 6px 13px;
  border-radius: 999px;
  background: var(--glass);
  font-size: .88rem;
  font-weight: 700;
}
.info .tags { margin: 0; color: var(--ink-soft); font-size: .92rem; font-weight: 600; }
.info .by { margin: 0 0 6px; color: var(--ink-soft); font-size: .85rem; }
.info .by a { pointer-events: auto; color: var(--ink); font-weight: 700; }
.info .by a:hover { text-decoration: underline; }
.info .sub-btn {
  pointer-events: auto;
  margin-left: 6px;
  padding: 3px 11px;
  border: 0;
  border-radius: 999px;
  background: #f8fafc;
  color: #0f172a;
  font-size: .78rem;
  font-weight: 800;
  vertical-align: 1px;
}
.info .sub-btn.on { background: rgba(248, 250, 252, .18); color: var(--ink); }
.info .new {
  display: inline-block;
  vertical-align: .3em;
  padding: 2px 8px;
  border-radius: 6px;
  background: #f43f5e;
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: 0;
  text-shadow: none;
}

/* ===== 오른쪽 버튼 줄 ===== */

.rail {
  position: absolute;
  z-index: 2;
  right: 12px;
  bottom: max(34px, calc(env(safe-area-inset-bottom) + 8px));
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.rail-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 0;
  border: 0;
  background: none;
  font-size: .78rem;
  font-weight: 700;
  text-shadow: 0 1px 4px rgba(0, 0, 0, .6);
}
.rail-btn .ic {
  width: 54px; height: 54px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--glass);
  transition: transform .15s ease, background-color .15s ease;
}
.rail-btn:active .ic { transform: scale(.9); }
.rail-btn.liked .ic { color: var(--like); }
.rail-btn.liked .ic svg { fill: currentColor; }
.rail-btn.liked .ic { animation: pop .3s ease; }
@keyframes pop {
  50% { transform: scale(1.18); }
}

/* 첫 화면 안내 */
.swipe-hint {
  margin-top: -10px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--ink-soft);
  animation: nudge 1.6s ease-in-out infinite;
  transition: opacity .3s ease;
}
.swipe-hint.gone { opacity: 0; }
@keyframes nudge {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

/* ===== 플레이 중 ===== */

.player {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  flex-direction: column;
  background: #000;
}
.play-bar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  padding-top: max(8px, env(safe-area-inset-top));
  background: #0b1120;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.play-bar .t {
  flex: 1;
  min-width: 0;
  font-weight: 700;
  font-size: .95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.bar-btn {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 0;
  background: rgba(255, 255, 255, .1);
  font-size: .88rem;
  font-weight: 700;
}
.bar-btn.next { background: var(--pill); color: var(--pill-ink); }
.bar-btn.next.ping { animation: pulse 1s ease-in-out infinite; }

.frame-wrap { position: relative; flex: 1; min-height: 0; }
.frame-wrap iframe { width: 100%; height: 100%; border: 0; display: block; }
.loading {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  color: var(--ink-soft);
  font-size: .9rem;
  pointer-events: none;
  transition: opacity .25s ease;
}
.loading.gone { opacity: 0; }
.loading::before {
  content: "";
  width: 34px; height: 34px;
  margin-bottom: 64px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, .15);
  border-top-color: var(--pill);
  animation: spin .8s linear infinite;
  grid-area: 1 / 1;
}
.loading span { grid-area: 1 / 1; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== 빈 화면 / 끝 화면 ===== */

.end {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px;
  text-align: center;
}
.end h2 { margin: 0; font-size: 1.5rem; }
.end p  { margin: 0 0 8px; color: var(--ink-soft); }
.end .acts { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.end .bar-btn { padding: 11px 18px; font-size: .95rem; }
.end .legal { margin-top: 28px; font-size: .8rem; }
.end .legal a { color: var(--ink-soft); text-decoration: underline; }

/* ===== 토스트 ===== */

.toast {
  position: fixed;
  left: 50%;
  bottom: 90px;
  z-index: 30;
  transform: translate(-50%, 10px);
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(15, 23, 42, .92);
  font-size: .9rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* 넓은 화면: 기둥 테두리 */
@media (min-width: 700px) {
  .col { box-shadow: 0 0 0 1px rgba(255, 255, 255, .06), 0 0 80px -20px rgba(0, 0, 0, .9); }
}