/* IKFC — shared tokens */
:root {
  --ikfc-black: #0a0a0a;
  --ikfc-red: #b01018;
  --ikfc-red-deep: #7a0a10;
  --ikfc-red-glow: rgba(220, 30, 40, 0.45);
  --ikfc-text: #f2f2f2;
  --ikfc-muted: #9a9a9a;
  --font-display: "Bebas Neue", "Impact", sans-serif;
  --font-body: "Barlow", "Segoe UI", system-ui, sans-serif;
}

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

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

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-body);
  background: var(--ikfc-black);
  color: var(--ikfc-text);
}

/* ========== Login page ========== */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: radial-gradient(ellipse 120% 80% at 50% 20%, #1a1515 0%, #050505 55%, #000 100%);
}

.login-body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E");
  pointer-events: none;
  opacity: 0.85;
}

.login-modal {
  position: relative;
  z-index: 1;
  width: min(520px, 100%);
  border: 1px solid #2a2020;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(176, 16, 24, 0.15);
  background: linear-gradient(165deg, #1c1414 0%, #0d0b0b 40%, #080606 100%);
}

.login-modal__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: linear-gradient(180deg, var(--ikfc-red-deep) 0%, #4a060a 100%);
  border-bottom: 1px solid #000;
}

.login-modal__title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #ffd6dc;
}

.login-modal__close {
  width: 36px;
  height: 36px;
  border: none;
  cursor: pointer;
  background: var(--ikfc-red);
  color: #fff;
  font-size: 1.25rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: filter 0.15s ease;
}

.login-modal__close:hover {
  filter: brightness(1.15);
}

.login-modal__body {
  padding: 28px 24px 32px;
}

.login-headline {
  text-align: center;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.login-headline__blood {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  letter-spacing: 0.06em;
  color: #e85c65;
  font-weight: 400;
}

.login-headline__join {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.75rem);
  letter-spacing: 0.08em;
  color: #fff;
  font-weight: 400;
}

.login-headline__billing {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--ikfc-muted);
  font-weight: 600;
}

.login-info {
  margin: 0 0 22px;
  font-size: 0.8rem;
  line-height: 1.55;
  color: #e6e6e6;
}

.login-field-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
}

.login-help {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid #666;
  background: #222;
  color: #ccc;
  font-size: 0.7rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: default;
}

.login-card-row {
  display: flex;
  border: 1px solid #333;
  background: #141212;
  min-height: 48px;
}

.login-card-row__left {
  flex: 1.2;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  border-right: 1px solid #333;
}

.login-card-row__right {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 0 12px;
}

.login-card-row input {
  flex: 1;
  border: none;
  background: transparent;
  color: #fff;
  font-size: 0.88rem;
  outline: none;
  min-width: 0;
}

.login-card-row input::placeholder {
  color: #6a6a6a;
}

.login-card-icon {
  font-size: 1rem;
  opacity: 0.7;
}

.login-submit {
  margin-top: 22px;
  width: 100%;
  padding: 14px;
  border: 1px solid #444;
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  text-transform: capitalize;
  background: linear-gradient(180deg, #4a4a4a 0%, #2a2a2a 45%, #1a1a1a 100%);
  transition: filter 0.15s ease, transform 0.1s ease;
}

.login-submit:hover {
  filter: brightness(1.08);
}

.login-submit:active {
  transform: translateY(1px);
}

/* ========== Splash ========== */
/* 注意：不能给 #splash-screen 写死 display:flex，否则会覆盖 HTML [hidden] 的 display:none，
   开场层关不掉时会一直挡在最上层，logo 动画也会在去掉 is-leaving 后被重新计算、反复出现。 */
#splash-screen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #000;
  pointer-events: all;
}

#splash-screen:not([hidden]) {
  display: block;
  position: fixed;
}

#splash-screen[hidden] {
  display: none !important;
  pointer-events: none;
}

#splash-screen.is-leaving {
  pointer-events: none;
}

.splash-flash {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 45%, var(--ikfc-red-glow) 0%, transparent 55%);
  opacity: 0;
  animation: splash-flash 0.55s ease-out forwards;
}

@keyframes splash-flash {
  0% {
    opacity: 0.95;
    transform: scale(1.2);
  }
  100% {
    opacity: 0;
    transform: scale(1);
  }
}

.splash-logo-wrap {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  animation: splash-entrance 0.85s cubic-bezier(0.22, 1, 0.36, 1) both;
  filter: drop-shadow(0 0 48px var(--ikfc-red-glow)) drop-shadow(0 0 100px rgba(0, 0, 0, 0.85));
}

@keyframes splash-entrance {
  0% {
    opacity: 0;
    transform: scale(1.22);
  }
  70% {
    opacity: 1;
    transform: scale(0.98);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.splash-logo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  animation: splash-pulse 0.4s ease-in-out 0.85s 2 alternate;
}

@keyframes splash-pulse {
  from {
    filter: brightness(1) contrast(1);
  }
  to {
    filter: brightness(1.25) contrast(1.15);
  }
}

#splash-screen.is-leaving .splash-logo-wrap {
  animation: splash-fadeout 2.4s ease-in forwards;
}

@keyframes splash-fadeout {
  to {
    opacity: 0;
    transform: scale(1.08);
    filter: blur(6px) brightness(0.6);
  }
}

#splash-screen.is-leaving .splash-flash {
  animation: none;
  opacity: 0;
}

/* ========== Home layout ========== */
#home-root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  opacity: 0;
  transition: opacity 0.6s ease;
}

#home-root.is-visible {
  opacity: 1;
}

.site-nav {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 28px;
  background: #0e0e0e;
  border-bottom: 1px solid #1f1f1f;
}

.site-nav__brand {
  text-decoration: none;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
}

.site-nav__brand-text {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2rem);
  font-weight: 400;
  letter-spacing: 0.14em;
  line-height: 1;
  color: var(--ikfc-red);
  transition: color 0.15s ease;
}

.site-nav__brand:hover .site-nav__brand-text {
  color: #ff4d5a;
}

.site-nav__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 4px 18px;
}

.site-nav__links a {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--ikfc-red);
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.site-nav__links a:hover {
  color: #ff4d5a;
}

.site-nav__links a.is-active {
  color: #ff5563;
  border-bottom-color: var(--ikfc-red);
}

.hero {
  position: relative;
  flex: 1;
  min-height: min(58vh, 560px);
  background: linear-gradient(180deg, #121212 0%, #0a0a0a 50%, #080808 100%);
  border-bottom: 1px solid #1a1a1a;
}

.hero__carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: rgba(80, 80, 80, 0.45);
  color: #fff;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}

.hero__carousel-btn:hover {
  background: rgba(120, 120, 120, 0.55);
}

.hero__carousel-btn--prev {
  left: 16px;
}

.hero__carousel-btn--next {
  right: 16px;
}

.hero__bg-slot {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: #080808;
}

.hero__bg-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.hero__bg-image {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: url("../homelogo.png") center / cover no-repeat;
  background-color: #080808;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.hero.hero--history-bg .hero__bg-image {
  opacity: 1;
  visibility: visible;
}

.hero.hero--history-bg .hero__bg-slot .hero__bg-video {
  opacity: 0;
}

.hero__page-layer {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 180px;
  text-align: center;
  background: radial-gradient(ellipse 85% 65% at 50% 28%, rgba(0, 0, 0, 0.55) 0%, transparent 72%);
}

.hero__page-layer h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: 0.1em;
  color: #fff;
  margin: 0 0 12px;
}

.hero__page-layer p {
  margin: 0;
  color: #c8c8c8;
  line-height: 1.65;
  font-size: 0.95rem;
}

.bottom-dock {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 4;
  pointer-events: none;
}

.bottom-bar {
  display: flex;
  align-items: stretch;
  gap: 20px;
  padding: 20px 28px 24px;
  pointer-events: auto;
  background: linear-gradient(
    180deg,
    rgba(176, 16, 24, 0.42) 0%,
    rgba(130, 12, 18, 0.52) 100%
  );
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.25);
}

.bottom-bar__emblem {
  flex-shrink: 0;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.35), inset 0 0 20px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  background: #000;
}

.bottom-bar__emblem img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.bottom-bar__text {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  font-size: 0.92rem;
  line-height: 1.5;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

@media (max-width: 900px) {
  .bottom-bar {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* History 内页与回放 */
.hero__page-layer--history {
  max-width: 960px;
  text-align: left;
  background: radial-gradient(ellipse 90% 70% at 50% 18%, rgba(0, 0, 0, 0.62) 0%, transparent 78%);
}

.history-page__subtitle {
  margin: 0 0 8px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ikfc-red);
}

.history-replays {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 22px;
  margin-top: 24px;
}

.history-card {
  display: block;
  margin: 0;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  text-align: center;
  background: rgba(10, 10, 10, 0.55);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.history-card:hover {
  transform: translateY(-3px);
  border-color: rgba(176, 16, 24, 0.55);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.5);
}

.history-card:focus-visible {
  outline: 2px solid var(--ikfc-red);
  outline-offset: 3px;
}

.history-card__thumb {
  aspect-ratio: 16 / 9;
  background: #0a0a0a;
  overflow: hidden;
}

.history-card__thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  pointer-events: none;
}

.history-card__date {
  display: block;
  padding: 12px 12px 16px;
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #f0f0f0;
}

.history-modal {
  position: fixed;
  inset: 0;
  z-index: 8000;
  padding: 20px;
}

.history-modal[hidden] {
  display: none !important;
}

.history-modal:not([hidden]) {
  display: flex;
  align-items: center;
  justify-content: center;
}

.history-modal__backdrop {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 0;
  border: none;
  background: rgba(0, 0, 0, 0.75);
  cursor: pointer;
}

.history-modal__panel {
  position: relative;
  z-index: 1;
  width: min(720px, 92vw);
  max-width: 100%;
  padding: 44px 16px 18px;
  background: #121212;
  border: 1px solid #2a2a2a;
  border-radius: 12px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.6);
}

.history-modal__close {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 2;
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 8px;
  background: rgba(50, 50, 50, 0.95);
  color: #fff;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease;
}

.history-modal__close:hover {
  background: var(--ikfc-red);
}

.history-modal__video {
  width: 100%;
  max-height: min(58vh, 540px);
  display: block;
  border-radius: 8px;
  background: #000;
}

/* Fighters 拳手海报 */
.hero__page-layer--fighters {
  max-width: min(1100px, 100%);
  text-align: left;
  background: radial-gradient(ellipse 90% 70% at 50% 18%, rgba(0, 0, 0, 0.62) 0%, transparent 78%);
}

.fighters-page__lead {
  margin: 0 0 16px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ikfc-red);
}

.fighter-carousel {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  margin-top: 8px;
}

.fighter-carousel__viewport {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.fighter-carousel__track {
  display: flex;
  gap: 14px;
  transition: transform 0.38s ease;
  will-change: transform;
}

.fighter-carousel__btn {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: rgba(80, 80, 80, 0.5);
  color: #fff;
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.fighter-carousel__btn:hover:not(:disabled) {
  background: rgba(120, 120, 120, 0.6);
}

.fighter-carousel__btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.fighter-card {
  margin: 0;
  padding: 0;
  flex-shrink: 0;
  border: none;
  background: transparent;
  text-align: center;
}

.fighter-card__poster {
  width: 100%;
  aspect-ratio: 2 / 3;
  margin: 0 auto;
  overflow: hidden;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #0c0c0c;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
}

.fighter-card__poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.fighter-card__meta {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
}

.fighter-card__name {
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #fff;
}

.fighter-card__weight {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #b8b8b8;
}

/* ========== 移动端 / 平板 ==========
   使用 1024px：iPhone 勾选「请求桌面网站」时布局视口常约 980px，
   若仍用 768px 则媒体查询不生效，页面会像桌面版。 */
@media screen and (max-width: 1024px) {
  html,
  body {
    overflow-x: hidden;
    max-width: 100%;
  }

  #home-root {
    max-width: 100%;
    overflow-x: hidden;
  }

  .site-nav {
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: 10px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
  }

  .site-nav__brand-text {
    font-size: clamp(1.35rem, 5vw, 1.75rem);
    letter-spacing: 0.1em;
  }

  .site-nav__links {
    flex: 1;
    min-width: 0;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    justify-content: flex-start;
    gap: 14px;
    padding: 4px 2px 8px;
    margin-right: -4px;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
  }

  .site-nav__links::-webkit-scrollbar {
    display: none;
  }

  .site-nav__links a {
    flex-shrink: 0;
    white-space: nowrap;
    font-size: 0.98rem;
    padding: 10px 0;
  }

  .hero {
    min-height: min(48vh, 420px);
  }

  .hero__carousel-btn {
    width: 36px;
    height: 36px;
    font-size: 1.2rem;
    touch-action: manipulation;
  }

  .hero__carousel-btn--prev {
    left: 8px;
  }

  .hero__carousel-btn--next {
    right: 8px;
  }

  .hero__page-layer {
    padding: 28px 16px max(140px, calc(120px + env(safe-area-inset-bottom)));
    max-width: 100%;
  }

  .hero__page-layer--history,
  .hero__page-layer--fighters {
    max-width: 100%;
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }

  .bottom-dock {
    padding-bottom: env(safe-area-inset-bottom);
  }

  .bottom-bar {
    padding: 14px 16px 18px;
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
    gap: 14px;
  }

  .bottom-bar__emblem {
    width: 80px;
    height: 80px;
  }

  .bottom-bar__text {
    font-size: 0.82rem;
    line-height: 1.45;
  }

  .history-replays {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 18px;
  }

  .history-modal {
    padding: 12px;
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
    padding-bottom: max(12px, env(safe-area-inset-bottom));
    padding-top: max(12px, env(safe-area-inset-top));
  }

  .history-modal:not([hidden]) {
    align-items: flex-end;
  }

  .history-modal__panel {
    width: 100%;
    max-width: 100%;
    padding: 40px 12px 14px;
    border-radius: 12px 12px 0 0;
    max-height: 88dvh;
    overflow-y: auto;
  }

  .history-modal__video {
    max-height: min(52dvh, 420px);
  }

  .fighter-carousel {
    gap: 6px;
  }

  .fighter-carousel__btn {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    font-size: 1.25rem;
    touch-action: manipulation;
  }

  .fighter-carousel__track {
    gap: 10px;
  }
}

@media screen and (max-width: 640px) {
  .login-body {
    padding: 12px;
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
    align-items: flex-start;
    padding-top: max(16px, env(safe-area-inset-top));
  }

  .login-modal__body {
    padding: 20px 16px 24px;
  }

  .login-info {
    font-size: 0.76rem;
  }

  .login-card-row {
    flex-direction: column;
    min-height: 0;
  }

  .login-card-row__left {
    flex: none;
    border-right: none;
    border-bottom: 1px solid #333;
    min-height: 48px;
    padding: 10px 12px;
  }

  .login-card-row__right {
    flex: none;
    min-height: 48px;
    padding: 10px 12px;
  }

  .login-submit {
    min-height: 48px;
    padding: 14px 16px;
    touch-action: manipulation;
  }

  .site-nav__links a {
    font-size: 0.92rem;
    letter-spacing: 0.04em;
  }

  .hero {
    min-height: min(40vh, 360px);
  }

  .hero__page-layer h1 {
    font-size: clamp(1.5rem, 7vw, 2.25rem);
  }

  .hero__page-layer p {
    font-size: 0.88rem;
  }

  .bottom-bar__emblem {
    width: 68px;
    height: 68px;
  }

  .bottom-bar__text {
    font-size: 0.78rem;
  }

  .history-page__subtitle,
  .fighters-page__lead {
    font-size: 0.82rem;
    letter-spacing: 0.08em;
  }

  .history-card__date {
    font-size: 0.88rem;
    padding: 10px 10px 14px;
  }

  .fighter-card__name {
    font-size: 0.88rem;
  }

  .fighter-card__weight {
    font-size: 0.76rem;
  }

  .history-modal__close {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    touch-action: manipulation;
  }
}