/* Mobil açılış: masaüstündeki metalik V1 sahnenin dikey, dokunmatik uyarlaması. */
@media (max-width: 980px) {
  .intro-panel .hero {
    position: relative;
    display: block;
    width: 100%;
    min-height: calc(100svh - var(--header));
    margin-top: var(--header);
    padding: 0;
    overflow: hidden;
    background: #030405;
  }

  .intro-panel .hero__background,
  .intro-panel .hero__veil,
  .intro-panel .intro-message-card,
  .intro-panel .hero__grid {
    display: none;
  }

  .intro-brand-stage {
    --intro-accent: #ec1c24;
    --intro-logo-hue: 0deg;
    position: absolute;
    inset: 0;
    isolation: isolate;
    display: grid;
    grid-template-rows: auto auto auto auto;
    align-content: center;
    justify-items: center;
    gap: clamp(15px, 2.2svh, 24px);
    padding: clamp(20px, 3svh, 34px) 14px;
    overflow: hidden;
    color: #fff;
    text-align: center;
    background:
      linear-gradient(180deg, rgba(0,0,0,.1), rgba(0,0,0,.02) 48%, rgba(0,0,0,.3)),
      radial-gradient(circle at 50% 31%, color-mix(in srgb, var(--intro-accent) 17%, transparent), transparent 29%),
      url("../images/brand/intro-metal-tech-bg-v1.png") center / cover no-repeat,
      #030405;
  }

  .intro-brand-stage::before {
    position: absolute;
    z-index: -1;
    inset: 0;
    content: "";
    pointer-events: none;
    background: radial-gradient(ellipse at 50% 33%, transparent 0 22%, rgba(0,0,0,.12) 54%, rgba(0,0,0,.5) 100%);
  }

  .intro-brand-stage::after {
    position: absolute;
    z-index: -1;
    top: 31%;
    left: 50%;
    width: min(88vw, 480px);
    height: min(42vw, 220px);
    border-radius: 50%;
    content: "";
    pointer-events: none;
    background: radial-gradient(ellipse, color-mix(in srgb, var(--intro-accent) 24%, transparent), transparent 70%);
    filter: blur(6px) drop-shadow(0 0 18px color-mix(in srgb, var(--intro-accent) 20%, transparent));
    transform: translate(-50%, -50%) perspective(600px) rotateX(67deg);
    transition: background .65s ease, filter .65s ease;
  }

  .intro-brand-stage__identity {
    position: relative;
    display: grid;
    justify-items: center;
  }

  .intro-brand-stage__identity::before {
    position: absolute;
    z-index: -1;
    top: 50%;
    left: 50%;
    width: min(78vw, 420px);
    height: min(30vw, 160px);
    border-radius: 50%;
    content: "";
    background: radial-gradient(ellipse, color-mix(in srgb, var(--intro-accent) 29%, transparent), color-mix(in srgb, var(--intro-accent) 10%, transparent) 43%, transparent 72%);
    filter: blur(3px);
    transform: translate(-50%, -50%) perspective(600px) rotateX(67deg);
    transition: background .65s ease;
  }

  .intro-brand-stage__emblem {
    display: block;
    width: clamp(170px, 43vw, 250px);
    height: auto;
    aspect-ratio: 1;
    object-fit: contain;
    filter: hue-rotate(var(--intro-logo-hue)) saturate(1.08) drop-shadow(0 16px 27px rgba(0,0,0,.7)) drop-shadow(0 0 13px color-mix(in srgb, var(--intro-accent) 60%, transparent)) drop-shadow(0 0 32px color-mix(in srgb, var(--intro-accent) 32%, transparent));
    animation: mobileIntroEmblem 1.35s cubic-bezier(.22,1,.36,1) both;
    transition: filter .65s ease;
  }

  .intro-slogan-rotator {
    position: relative;
    display: grid;
    width: min(92vw, 570px);
    height: 38px;
    place-items: center;
    overflow: hidden;
    font-family: var(--display);
  }

  .intro-slogan-rotator::before,
  .intro-slogan-rotator::after {
    position: absolute;
    top: 50%;
    width: 24%;
    height: 1px;
    content: "";
    background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--intro-accent) 82%, transparent));
    box-shadow: 0 0 9px color-mix(in srgb, var(--intro-accent) 56%, transparent);
    transition: background .65s ease, box-shadow .65s ease;
  }

  .intro-slogan-rotator::before { left: 0; }
  .intro-slogan-rotator::after { right: 0; transform: scaleX(-1); }

  .intro-slogan-rotator span {
    grid-area: 1 / 1;
    padding: 0 12px;
    color: #f4f2f1;
    font: 700 clamp(18px, 5.6vw, 27px) / 1 var(--display);
    letter-spacing: .15em;
    text-indent: .15em;
    white-space: nowrap;
    opacity: 0;
    filter: blur(6px);
    transition: opacity .38s ease, filter .46s ease;
  }

  .intro-slogan-rotator span.is-active { opacity: 1; filter: none; }

  .intro-game-lineup {
    position: relative;
    display: grid;
    width: min(96vw, 620px);
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: center;
    gap: clamp(9px, 1.8svh, 15px) 4px;
  }

  .intro-game-lineup__item {
    display: grid;
    min-width: 0;
    place-items: center;
    color: #fff;
    text-decoration: none;
    animation: mobileIntroLogo .72s cubic-bezier(.16,1,.3,1) both;
    animation-delay: calc(.45s + var(--mobile-logo-index, 0) * .055s);
  }

  .intro-game-lineup__item:nth-child(1) { --mobile-logo-index: 0; }
  .intro-game-lineup__item:nth-child(2) { --mobile-logo-index: 1; }
  .intro-game-lineup__item:nth-child(3) { --mobile-logo-index: 2; }
  .intro-game-lineup__item:nth-child(4) { --mobile-logo-index: 3; }
  .intro-game-lineup__item:nth-child(5) { --mobile-logo-index: 4; }
  .intro-game-lineup__item:nth-child(6) { --mobile-logo-index: 5; }
  .intro-game-lineup__item:nth-child(7) { --mobile-logo-index: 6; }
  .intro-game-lineup__item:nth-child(8) { --mobile-logo-index: 7; }
  .intro-game-lineup__item:nth-child(9) { --mobile-logo-index: 8; }
  .intro-game-lineup__item:nth-child(10) { --mobile-logo-index: 9; }

  .intro-game-lineup__item picture {
    display: block;
    width: clamp(62px, 17vw, 92px);
    aspect-ratio: 1;
  }

  .intro-game-lineup__item img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 7px 12px rgba(0,0,0,.72));
  }

  /* Mobilde logonun kendisi yeterli; alt adlar kalabalık oluşturmuyor. */
  .intro-game-lineup__item span { display: none; }

  .intro-brand-stage__claim {
    display: flex;
    width: min(92vw, 560px);
    align-items: center;
    gap: 12px;
    margin: 0;
    color: #ecebea;
    font: 650 clamp(12px, 3.3vw, 16px) / 1 var(--display);
    letter-spacing: .42em;
    text-indent: .42em;
    white-space: nowrap;
  }

  .intro-brand-stage__claim::before,
  .intro-brand-stage__claim::after {
    height: 1px;
    flex: 1;
    content: "";
    background: linear-gradient(90deg, transparent, var(--intro-accent));
    box-shadow: 0 0 9px color-mix(in srgb, var(--intro-accent) 78%, transparent);
    transition: background .65s ease, box-shadow .65s ease;
  }

  .intro-brand-stage__claim::after { transform: scaleX(-1); }

  @keyframes mobileIntroEmblem {
    from { opacity: 0; transform: scale(.86); }
    to { opacity: 1; transform: scale(1); }
  }

  @keyframes mobileIntroLogo {
    from { opacity: 0; transform: translateY(14px) scale(.82); }
    to { opacity: 1; transform: none; }
  }
}

@media (max-width: 420px) {
  .intro-brand-stage {
    align-content: start;
    gap: clamp(11px, 1.8svh, 17px);
    padding-top: clamp(22px, 4svh, 42px);
  }

  .intro-brand-stage__emblem { width: clamp(145px, 39vw, 190px); }
  .intro-game-lineup { gap: 9px 3px; }
  .intro-game-lineup__item picture { width: clamp(58px, 17vw, 72px); }
  .intro-brand-stage__claim { font-size: 11px; letter-spacing: .3em; text-indent: .3em; }
}

@media (prefers-reduced-motion: reduce) {
  .intro-brand-stage__emblem,
  .intro-game-lineup__item { animation: none; }
}