:root {
  --bg: #050505;
  --panel: #0c0c0c;
  --panel-2: #131313;
  --text: #f4f4f4;
  --muted: #b9b9b9;
  --line: rgba(255,255,255,.16);
  --red: #b40000;
  --red-2: #e10d0d;
  --red-dark: #5e0000;
  --header-height: 72px;
  --container: 1120px;
  --side-pad: clamp(22px, 4.7vw, 56px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 15% 12%, rgba(155,0,0,.18), transparent 22rem),
    radial-gradient(circle at 88% 50%, rgba(155,0,0,.12), transparent 24rem),
    var(--bg);
  color: var(--text);
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: .03em;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .3;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.8), transparent 70%);
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(var(--container), calc(100% - var(--side-pad) * 2));
  margin-inline: auto;
}

.section {
  padding: clamp(44px, 7vw, 74px) 0;
}

.section-kicker {
  margin: 0 0 .25rem;
  color: var(--red-2);
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(16px, 2vw, 21px);
  line-height: 1;
  letter-spacing: .05em;
}

h1,
h2,
p {
  margin-top: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15;
  letter-spacing: .01em;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  min-width: 188px;
  min-height: 50px;
  padding: 13px 24px;
  border: 1px solid rgba(255,255,255,.48);
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .04em;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.button span {
  font-size: 26px;
  line-height: 0;
  transform: translateY(-1px);
}

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

.button-primary {
  border-color: rgba(255,0,0,.52);
  background: linear-gradient(90deg, #8f0000, #c30000 52%, #780000);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.04), 0 12px 36px rgba(160,0,0,.22);
}

.button-ghost {
  background: rgba(0,0,0,.2);
}

.button-outline {
  border-color: rgba(227,0,0,.8);
  background: rgba(0,0,0,.22);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
}

.text-link span {
  font-size: 24px;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  background: rgba(0,0,0,.84);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.header-inner {
  width: min(1180px, calc(100% - 48px));
  min-height: var(--header-height);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 38px);
}

.brand {
  flex: 0 0 auto;
  width: clamp(145px, 16vw, 190px);
}

.global-nav {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 2.3vw, 42px);
}

.global-nav a,
.footer-nav a,
.mobile-nav a {
  display: grid;
  gap: 1px;
  font-weight: 900;
  font-size: 12px;
  line-height: 1.2;
  text-transform: uppercase;
}

.global-nav small,
.footer-nav small,
.mobile-nav small {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  text-transform: none;
}

.header-social,
.footer-social {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 25px;
  line-height: 1;
}

.menu-button {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 28px;
  height: 2px;
  margin: 6px auto;
  background: #fff;
  transition: transform .2s ease, opacity .2s ease;
}

.mobile-nav {
  display: none;
}

/* Hero */
.hero {
  position: relative;
  min-height: min(680px, calc(100vh - var(--header-height)));
  overflow: hidden;
  background: #030303;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, #000 0%, rgba(0,0,0,.94) 30%, rgba(0,0,0,.48) 58%, rgba(0,0,0,.05) 100%),
    radial-gradient(circle at 43% 34%, rgba(255,255,255,.18), transparent 18rem),
    radial-gradient(circle at 75% 64%, rgba(190,0,0,.24), transparent 17rem);
}

.hero-visual {
  position: absolute;
  inset: 0 0 0 auto;
  width: 65%;
  height: 100%;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 48% 50%;
}

.hero-inner {
  position: relative;
  z-index: 2;
  min-height: inherit;
  display: flex;
  align-items: center;
}

.hero-copy {
  width: min(560px, 54vw);
  padding: 60px 0;
}

.hero-title {
  margin: 0 0 22px;
  color: #f7f7f7;
  font-family: Impact, Haettenschweiler, "Arial Black", sans-serif;
  font-size: clamp(70px, 10.2vw, 138px);
  line-height: .86;
  letter-spacing: -.045em;
  text-transform: uppercase;
  text-shadow:
    0 1px 0 #9d9d9d,
    0 8px 24px rgba(0,0,0,.75),
    2px 0 rgba(120,120,120,.45);
}

.hero-title span {
  display: block;
}

.hero-lead {
  margin-bottom: 22px;
  color: var(--red-2);
  font-size: clamp(22px, 3vw, 31px);
  font-weight: 900;
  line-height: 1.35;
}

.hero-text {
  margin-bottom: 28px;
  color: #fff;
  font-weight: 700;
}

.button-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* About / News */
.about-news {
  position: relative;
  background:
    linear-gradient(180deg, #111 0%, #090909 100%),
    var(--panel);
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.about-grid {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 22px 34px;
  align-items: start;
}

.about-copy {
  min-height: 260px;
}

.about-copy h2 {
  position: relative;
  padding-bottom: 15px;
}

.about-copy h2::after,
.fighters-heading h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 86px;
  height: 2px;
  background: linear-gradient(90deg, var(--red-2) 0 52px, transparent 52px 66px, var(--red-2) 66px 100%);
}

.about-copy p:not(.section-kicker) {
  color: #fff;
  font-weight: 700;
}

.arena-image,
.action-image {
  margin: 0;
  overflow: hidden;
  background: #000;
}

.arena-image img,
.action-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.arena-image:hover img,
.action-image:hover img,
.fighter-card:hover img {
  transform: scale(1.04);
}

.arena-image {
  aspect-ratio: 2.42 / 1;
}

.action-image {
  aspect-ratio: 2.27 / 1;
}

.news-list {
  border-top: 1px solid var(--line);
}

.news-item {
  display: grid;
  grid-template-columns: 90px 56px 1fr;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
}

.news-item time {
  color: #fff;
  font-size: 13px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  min-height: 21px;
  padding: 3px 8px;
  border: 1px solid rgba(255,255,255,.62);
  color: #fff;
  font-size: 10px;
  font-weight: 900;
  line-height: 1;
}

.badge-red {
  border-color: var(--red-2);
  background: var(--red-2);
}

/* Event */
.event-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 270px;
  padding: clamp(42px, 6vw, 58px) 0;
  background:
    linear-gradient(90deg, rgba(0,0,0,.98) 0%, rgba(0,0,0,.88) 36%, rgba(0,0,0,.25) 70%, rgba(0,0,0,.2) 100%),
    url("../assets/event-bg.jpg") center right / cover no-repeat;
  border-bottom: 1px solid rgba(255,255,255,.18);
}

.event-section::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(circle at 4% 8%, rgba(255,0,0,.62), transparent 7rem);
  opacity: .85;
}

.event-copy {
  width: min(460px, 100%);
}

.event-copy h2 {
  margin-bottom: 2px;
}

.event-date {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 10px;
  line-height: 1;
}

.event-date span {
  color: #e8e8e8;
  font-family: Impact, Haettenschweiler, "Arial Black", sans-serif;
  font-size: clamp(48px, 7vw, 72px);
  letter-spacing: .01em;
  text-shadow: 0 4px 16px rgba(0,0,0,.7);
}

.event-date em {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 43px;
  border: 2px solid var(--red-2);
  color: var(--red-2);
  font-style: normal;
  font-weight: 900;
}

.event-meta {
  margin-bottom: 4px;
  font-weight: 900;
  font-size: 18px;
}

.event-copy p:not(.section-kicker):not(.event-date):not(.event-meta) {
  margin-bottom: 22px;
  color: #fff;
  font-weight: 700;
}

/* Fighters */
.fighters-section {
  background: linear-gradient(180deg, #121212 0%, #080808 100%);
}

.fighters-inner {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 34px;
  align-items: center;
}

.fighters-heading h2 {
  position: relative;
  padding-bottom: 15px;
}

.fighter-cards {
  display: grid;
  grid-template-columns: repeat(6, minmax(110px, 1fr));
  gap: 12px;
}

.fighter-card {
  display: block;
  overflow: hidden;
  min-height: 154px;
  background: #000;
}

.fighter-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease, filter .4s ease;
}

.fighter-card:hover img {
  filter: contrast(1.08) brightness(1.08);
}

/* Ticket */
.ticket-band {
  background:
    linear-gradient(90deg, #5d0000 0%, #b60000 46%, #3e0000 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.13), inset 0 -1px 0 rgba(0,0,0,.4);
}

.ticket-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(28px, 8vw, 110px);
}

.ticket-inner h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 43px);
  letter-spacing: .06em;
}

/* Footer */
.site-footer {
  padding: 32px 0 18px;
  background: #020202;
}

.footer-inner {
  display: grid;
  grid-template-columns: 320px 1fr auto;
  gap: 36px;
  align-items: start;
}

.footer-brand img {
  width: 180px;
  margin-bottom: 18px;
}

.footer-brand p {
  margin: 0;
  color: #d7d7d7;
  font-size: 12px;
  line-height: 1.65;
  font-weight: 700;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(100px, 1fr));
  gap: 22px 30px;
}

.copyright {
  margin: 26px 0 0;
  color: #bdbdbd;
  font-size: 12px;
  text-align: center;
}

@media (max-width: 1024px) {
  :root {
    --header-height: 64px;
  }

  .global-nav,
  .header-social {
    display: none;
  }

  .header-inner {
    width: calc(100% - 36px);
  }

  .menu-button {
    display: block;
  }

  .menu-open .menu-button span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .menu-open .menu-button span:nth-child(2) {
    opacity: 0;
  }

  .menu-open .menu-button span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .mobile-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    display: grid;
    gap: 0;
    padding: 12px 24px 28px;
    background: rgba(0,0,0,.96);
    border-bottom: 1px solid rgba(255,255,255,.12);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform .24s ease, opacity .24s ease;
  }

  .menu-open .mobile-nav {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-nav a {
    grid-template-columns: 1fr auto;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255,255,255,.1);
    font-size: 16px;
  }

  .mobile-nav small {
    font-size: 12px;
  }

  .hero {
    min-height: auto;
    padding-top: 0;
  }

  .hero::before {
    background:
      linear-gradient(180deg, rgba(0,0,0,.03) 0%, rgba(0,0,0,.35) 46%, #000 84%),
      radial-gradient(circle at 70% 18%, rgba(255,255,255,.18), transparent 13rem),
      radial-gradient(circle at 74% 75%, rgba(190,0,0,.22), transparent 14rem);
  }

  .hero-visual {
    position: relative;
    width: 100%;
    height: clamp(370px, 96vw, 560px);
  }

  .hero-visual img {
    object-position: 50% 50%;
  }

  .hero-inner {
    min-height: auto;
    display: block;
    margin-top: clamp(-130px, -25vw, -76px);
    padding-bottom: 36px;
  }

  .hero-copy {
    width: 100%;
    padding: 0;
  }

  .hero-title {
    font-size: clamp(58px, 17vw, 92px);
  }

  .button-row,
  .button-row .button {
    width: 100%;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .arena-image {
    display: none;
  }

  .news-item {
    grid-template-columns: 84px 55px 1fr;
    gap: 10px;
  }

  .fighters-inner {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .fighters-heading .button {
    display: none;
  }

  .fighter-cards {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 10px;
    scroll-snap-type: x mandatory;
  }

  .fighter-card {
    flex: 0 0 118px;
    min-height: 132px;
    scroll-snap-align: start;
  }

  .fighter-card:nth-child(n+5) {
    display: none;
  }

  .fighters-section::after {
    content: "••••";
    display: block;
    margin-top: -3px;
    color: rgba(255,255,255,.28);
    text-align: center;
    letter-spacing: .45em;
  }

  .ticket-inner {
    padding: 26px 0;
    flex-direction: column;
    align-items: stretch;
    gap: 18px;
  }

  .ticket-inner h2 {
    text-align: center;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-nav {
    grid-template-columns: repeat(2, minmax(130px, 1fr));
  }
}

@media (max-width: 640px) {
  body {
    font-size: 13px;
    line-height: 1.85;
  }

  .container {
    width: calc(100% - 40px);
  }

  .brand {
    width: 142px;
  }

  .hero-text br {
    display: none;
  }

  .button {
    width: 100%;
    justify-content: space-between;
    min-height: 48px;
    padding-inline: 22px;
  }

  .action-image {
    aspect-ratio: 1.9 / 1;
  }

  .news-item {
    grid-template-columns: 1fr auto;
    align-items: start;
  }

  .news-item time {
    grid-column: 1;
  }

  .news-item .badge {
    grid-column: 2;
  }

  .news-item a {
    grid-column: 1 / -1;
  }

  .event-section {
    background:
      linear-gradient(180deg, rgba(0,0,0,.74) 0%, rgba(0,0,0,.94) 62%, #020202 100%),
      url("../assets/event-bg.jpg") center top / cover no-repeat;
  }

  .event-date {
    gap: 10px;
  }

  .event-date span {
    font-size: clamp(44px, 14vw, 58px);
  }

  .event-date em {
    width: 46px;
    height: 38px;
    font-size: 13px;
  }

  .event-meta {
    font-size: 15px;
  }

  .fighters-heading .button {
    display: inline-flex;
    margin-top: 12px;
  }

  .footer-brand img {
    width: 166px;
  }
}