:root {
    --bg:    #f6c70c;
    --ink:   #2a1c08;
    --ink-2: #5a4418;
    --paper: #fffaeb;
    --line:  #1a1208;
    --hi:    #ffe45c;
  }

  * { box-sizing: border-box; }

  html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: "DotGothic16", "Hiragino Maru Gothic ProN", system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
  }
  body {
    min-height: 100vh;
    padding-bottom: clamp(80px, 10vh, 140px);
  }
  a { color: inherit; }

  /* ── Header ────────────────────────────────────── */
  .header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: clamp(16px, 2.4vw, 32px) clamp(20px, 3vw, 44px);
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg) 70%, rgba(246,199,12,0) 100%);
  }
  .site-brand {
    display: flex;
    align-items: center;
    gap: clamp(10px, 1.1vw, 18px);
    text-decoration: none;
    filter: drop-shadow(0 4px 0 rgba(0,0,0,0.12));
    transition: transform 0.15s ease;
  }
  .site-brand:hover { transform: translate(-1px, -1px); }
  .site-brand-logo {
    height: clamp(40px, 4.4vw, 62px);
    width: auto;
    display: block;
  }
  .nav {
    display: flex;
    align-items: center;
    gap: clamp(10px, 1vw, 18px);
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: clamp(12px, 1.2vw, 19px);
    letter-spacing: 0.06em;
    color: #fff;
  }
  .nav a {
    color: #fff;
    text-decoration: none;
    text-shadow: 2px 2px 0 rgba(0,0,0,0.20);
    padding: 4px 2px;
    transition: transform 0.15s ease, color 0.15s ease;
  }
  .nav a:hover { transform: translate(-1px,-1px); color: #fff8d4; }
  .nav a.active { color: #96580b; text-shadow: 2px 2px 0 var(--hi); }
  .nav .sep { opacity: 0.85; }

  /* ── Page ──────────────────────────────────────── */
  .page {
    max-width: 880px;
    margin: 0 auto;
    padding: clamp(20px, 4vw, 56px) clamp(20px, 4vw, 32px) 0;
  }
  .page-head {
    margin: clamp(16px, 4vw, 36px) 0 clamp(20px, 3vw, 32px);
  }
  .page-title {
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: clamp(46px, 8.5vw, 80px);
    line-height: 0.95;
    color: #fff;
    text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.20);
    letter-spacing: 0.02em;
    margin: 0;
  }

  .lead {
    margin: clamp(18px, 2.4vw, 28px) 0 clamp(22px, 3vw, 32px);
    font-size: clamp(14px, 1.3vw, 17px);
    line-height: 1.9;
    letter-spacing: 0.02em;
    color: var(--ink);
    text-wrap: pretty;
  }

  /* ── Form card ─────────────────────────────────── */
  .card {
    background: var(--paper);
    border: 3.5px solid var(--line);
    border-radius: 8px;
    box-shadow: 6px 6px 0 var(--line);
    padding: clamp(22px, 3vw, 36px);
  }

  .field {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: clamp(16px, 2vw, 22px);
  }
  .field:last-of-type { margin-bottom: clamp(20px, 2.6vw, 28px); }

  .field label {
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--line);
  }
  .field .req {
    display: inline-block;
    margin-left: 6px;
    font-size: 10px;
    background: var(--bg);
    color: #fff;
    border: 1.5px solid var(--ink-2);
    padding: 2px 5px;
    border-radius: 3px;
    letter-spacing: 0.06em;
  }
  .field .hint {
    font-size: 13px;
    color: var(--ink-2);
    margin-top: 2px;
  }

  .field input,
  .field textarea {
    width: 100%;
    font: inherit;
    font-size: 16px;
    color: var(--ink);
    background: #fff;
    border: 3px solid var(--line);
    border-radius: 6px;
    padding: 12px 14px;
    line-height: 1.6;
    outline: none;
    transition: box-shadow 0.12s ease, border-color 0.12s ease;
    box-shadow: 3px 3px 0 var(--line);
  }

  /* HP-bar styled inputs (YOU = name, COM = email) */
  .hp-input {
    --hp: 100%;
    --damage: 0%;
    position: relative;
  }
  .field input[name="name"],
  .field input[name="email"] {
    color: transparent;
    caret-color: var(--line);
    font-weight: 700;
    text-shadow: none;
    transition: background 0.20s ease, box-shadow 0.12s ease, border-color 0.12s ease;
  }
  .field input[name="name"] {
    background:
      linear-gradient(90deg,
        #d90103 0%,
        #d90103 var(--damage),
        #fff var(--damage),
        #fff 100%);
  }
  .field input[name="email"] {
    background:
      linear-gradient(270deg,
        #d90103 0%,
        #d90103 var(--damage),
        #fff var(--damage),
        #fff 100%);
  }
  .hp-input-text {
    position: absolute;
    left: 17px;
    right: 17px;
    top: 15px;
    z-index: 2;
    overflow: hidden;
    pointer-events: none;
    white-space: pre;
    font: inherit;
    font-size: 16px;
    font-weight: 700;
    line-height: 1.6;
  }
  .hp-input-text--black {
    color: var(--line);
  }
  .hp-input-text--white {
    color: #fff;
    text-shadow: 1px 1px 0 rgba(0,0,0,0.25);
  }
  .hp-input--p1 .hp-input-text--white {
    clip-path: inset(0 calc(100% - var(--damage)) 0 0);
  }
  .hp-input--p2 .hp-input-text--white {
    clip-path: inset(0 0 0 calc(100% - var(--damage)));
  }
  .field textarea {
    min-height: 480px;
    padding-bottom: clamp(350px, 42vw, 430px);
    resize: vertical;
  }
  .textarea-stage {
    position: relative;
  }
  .textarea-stage textarea {
    display: block;
  }
  .field input:focus,
  .field textarea:focus {
    border-color: var(--line);
    box-shadow: 5px 5px 0 var(--line);
  }
  .field input:invalid:not(:placeholder-shown),
  .field textarea:invalid:not(:placeholder-shown) {
    border-color: #c93d2c;
  }
  .field .error {
    display: none;
    color: #c93d2c;
    font-size: 13px;
    letter-spacing: 0.02em;
  }
  .field.has-error .error { display: block; }
  .field.has-error input,
  .field.has-error textarea {
    border-color: #c93d2c;
  }

  /* Submit button */
  .actions {
    margin-top: clamp(18px, 2.6vw, 28px);
    position: relative;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
  }
  .submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 150px;
    min-height: 50px;
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: 13px;
    letter-spacing: 0.08em;
    color: #fff;
    background: var(--bg);
    border: 2.5px solid var(--ink-2);
    padding: 14px 22px;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 4px 4px 0 var(--ink-2);
    transition: transform 0.12s ease, box-shadow 0.12s ease;
  }
  .submit:hover { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 var(--ink-2); }
  .submit:active { transform: translate(1px, 1px); box-shadow: 2px 2px 0 var(--ink-2); }

  /* Confirm state */
  .confirm {
    display: none;
  }
  .card.confirming .form { display: none; }
  .card.confirming .lead { display: none; }
  .card.confirming .confirm { display: block; }

  .confirm h2 {
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: 14px;
    letter-spacing: 0.06em;
    color: var(--line);
    margin: 0 0 clamp(16px, 2vw, 22px);
  }
  .confirm-list {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 14px clamp(16px, 2vw, 28px);
    margin: 0 0 clamp(20px, 2.6vw, 28px);
    padding: clamp(16px, 2vw, 22px);
    border: 2px solid var(--line);
    border-radius: 6px;
    background: #fff;
  }
  .confirm-list dt {
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: 10px;
    letter-spacing: 0.06em;
    color: var(--line);
    padding-top: 4px;
    white-space: nowrap;
  }
  .confirm-list dd {
    margin: 0;
    font-size: 15px;
    line-height: 1.7;
    color: var(--ink);
    word-break: break-word;
    white-space: pre-wrap;
  }
  .confirm-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    flex-wrap: wrap;
  }
  .confirm-back,
  .confirm-send {
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: 12px;
    letter-spacing: 0.08em;
    padding: 12px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: transform 0.12s ease, box-shadow 0.12s ease;
  }
  .confirm-back {
    color: var(--line);
    background: #fff;
    border: 2.5px solid var(--ink-2);
    box-shadow: 4px 4px 0 var(--ink-2);
  }
  .confirm-send {
    color: #fff;
    background: var(--bg);
    border: 2.5px solid var(--ink-2);
    box-shadow: 4px 4px 0 var(--ink-2);
  }
  .confirm-back:hover,
  .confirm-send:hover { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 var(--ink-2); }
  .confirm-back:active,
  .confirm-send:active { transform: translate(1px, 1px); box-shadow: 2px 2px 0 var(--ink-2); }
  .confirm-send[disabled] { cursor: wait; opacity: 0.65; }

  /* Success state */
  .success {
    display: none;
    text-align: center;
    padding: clamp(20px, 3vw, 32px);
  }
  .card.sent .form { display: none; }
  .card.sent .lead { display: none; }
  .card.sent .confirm { display: none; }
  .card.sent .success { display: block; }
  .success .glyph {
    font-size: 64px;
    line-height: 1;
    margin-bottom: 14px;
  }
  .success h2 {
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: 18px;
    letter-spacing: 0.04em;
    color: var(--line);
    margin: 0 0 10px;
  }
  .success p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--ink);
    margin: 0 0 clamp(20px, 2.6vw, 28px);
  }
  .success-back {
    display: inline-block;
    padding: 12px 22px;
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: 12px;
    letter-spacing: 0.08em;
    color: #fff;
    background: var(--bg);
    border: 2.5px solid var(--ink-2);
    border-radius: 5px;
    text-decoration: none;
    box-shadow: 4px 4px 0 var(--ink-2);
    transition: transform 0.12s ease, box-shadow 0.12s ease;
  }
  .success-back:hover { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 var(--ink-2); }
  .success-back:active { transform: translate(1px, 1px); box-shadow: 2px 2px 0 var(--ink-2); }

  /* ── SNS (bottom-right) ────────────────────────── */
  .sns {
    position: fixed;
    bottom: clamp(25px, 3vw, 40px);
    right: clamp(25px, 3vw, 44px);
    z-index: 10;
    display: flex;
    align-items: center;
    gap: clamp(14px, 1.6vw, 26px);
  }
  .sns a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    transition: transform 0.2s ease;
  }
  .sns a:hover { transform: translateY(-3px); }
  .sns svg {
    height: clamp(26px, 2.4vw, 38px);
    width: auto;
    fill: #fff;
    display: block;
    filter: drop-shadow(0 2px 0 rgba(0,0,0,0.18));
  }

  @media (max-width: 720px) {
    .nav { font-size: 11px; gap: 8px; }
  }

  /* Field row — two fields side by side on wider screens */
  .field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(14px, 1.8vw, 24px);
  }
  .field-row .field { margin-bottom: clamp(16px, 2vw, 22px); }
  @media (max-width: 560px) {
    .field-row { grid-template-columns: 1fr; gap: 0; }
  }

  /* ── Fight stage (inside the form card) ─────────── */
  .fight-stage {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 6px;
    width: 100%;
    height: clamp(380px, 42vw, 460px);
    margin: 0;
    overflow: hidden;
    cursor: pointer;
    z-index: 2;
  }
  .fight-stage:focus {
    outline: none;
  }
  .fight-stage .ground { display: none; }
  /* Stage VS removed */
  .fight-stage .vs { display: none; }

  .fighter {
    position: absolute;
    left: 0;
    bottom: 6px;
    width: 210px;
    height: 220px;
    pointer-events: none;
    image-rendering: pixelated;
    transform-origin: 50% 100%;
    will-change: transform, filter;
    transition: filter 0.05s linear;
  }
  .fighter img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: 50% 100%;
    display: block;
    user-select: none;
    -webkit-user-drag: none;
  }
  .fighter.hit {
    filter: brightness(2.8) drop-shadow(0 0 10px #fff);
  }

  .fighter-tag {
    position: absolute;
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: 11px;
    letter-spacing: 0.06em;
    transform: translateX(-50%);
    pointer-events: none;
    text-shadow: 2px 2px 0 rgba(0,0,0,0.35);
    white-space: nowrap;
    will-change: left, top;
  }
  .fighter-tag.p1 { color: #2a6fff; }
  .fighter-tag.p2 { color: #e23a3a; }

  /* Hadouken projectile (energy ball) */
  .hadouken {
    position: absolute;
    left: 0; top: 0;
    width: 56px;
    height: 40px;
    transform-origin: 50% 50%;
    background: radial-gradient(ellipse at center,
      #fff 0%, #fff7c0 25%, #ffd84d 50%, #ff9a1a 75%, transparent 100%);
    border-radius: 50%;
    filter: drop-shadow(0 0 10px #ffd84d) drop-shadow(0 0 18px #ff9a1a);
    pointer-events: none;
    margin-left: -28px;
    margin-top: -20px;
  }

  .tap-spark {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 35;
    pointer-events: none;
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: 18px;
    letter-spacing: 0.04em;
    color: #fff;
    text-shadow: 3px 3px 0 rgba(0,0,0,0.32);
    animation: tapSpark 0.72s ease-out forwards;
    transform: translate(-50%, -50%);
  }

  @keyframes tapSpark {
    0% {
      opacity: 0;
      transform: translate(-50%, -50%) translateY(12px) scale(0.65) rotate(-4deg);
    }
    18% {
      opacity: 1;
      transform: translate(-50%, -50%) translateY(0) scale(1.08) rotate(3deg);
    }
    100% {
      opacity: 0;
      transform: translate(-50%, -50%) translateY(-52px) scale(0.92) rotate(-8deg);
    }
  }

  /* Stage controls hint moved to page bottom-left */
  .fight-hint { display: none; }

  /* Pause button */
  .pause-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 150px;
    min-height: 50px;
    margin: 0;
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: 13px;
    letter-spacing: 0.08em;
    color: #fff;
    background: var(--bg);
    border: 2.5px solid var(--ink-2);
    padding: 14px 22px;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 4px 4px 0 var(--ink-2);
    transition: transform 0.12s ease, box-shadow 0.12s ease;
  }
  .pause-btn:hover { transform: translate(-1px,-1px); box-shadow: 5px 5px 0 var(--ink-2); }
  .pause-btn:active { transform: translate(1px,1px); box-shadow: 2px 2px 0 var(--ink-2); }

  /* PAUSED label inside fight-stage center */
  .pause-banner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: none;
    z-index: 30;
    pointer-events: none;
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: clamp(20px, 3vw, 36px);
    letter-spacing: 0.16em;
    color: #fff;
    text-shadow: 4px 4px 0 rgba(0,0,0,0.40);
  }
  .pause-banner.on { display: block; }

  /* Page-level controls hint (matches About / Works) */
  .controls-hint {
    position: fixed;
    left: clamp(20px, 3vw, 44px);
    bottom: clamp(20px, 3vw, 40px);
    z-index: 11;
    font-family: "Press Start 2P", system-ui, sans-serif;
    font-size: 9px;
    line-height: 1.7;
    letter-spacing: 0.04em;
    color: rgba(255,255,255,0.95);
    text-shadow: 2px 2px 0 rgba(0,0,0,0.20);
    pointer-events: none;
    text-align: left;
  }
  .controls-hint .kbd {
    display: inline-block;
    border: 2px solid rgba(255,255,255,0.92);
    padding: 2px 5px;
    margin: 0 1px;
    border-radius: 3px;
    font-size: 8px;
  }

  @media (max-width: 720px) {
    .lead {
      margin: clamp(9px, 2.4vw, 28px) 0 clamp(24px, 3vw, 32px);
    }
    .fighter { width: 162px; height: 170px; }
    .field textarea {
      padding-bottom: clamp(280px, 58vw, 360px);
    }
    .fight-stage { height: clamp(320px, 64vw, 380px); }
    .controls-hint { display: none; }
    .actions { justify-content: space-between; }
    .pause-btn {
      display: inline-flex;
      width: 130px;
    }
    .submit {
      width: 135px;
    }
  }