:root {
      --bg-image: url("./images/construction-site-background.png");
      --fg-image: url("./images/construction-worker.png");

      --page-bg: #050505;
      --ink: #fff7c6;
      --ink-soft: #f6d85a;
      --hazard: #ffbf1a;
      --hazard-dark: #1a1200;
      --panel: rgba(10, 9, 6, 0.58);
      --panel-line: rgba(255, 216, 89, 0.38);
      --shadow: rgba(0, 0, 0, 0.78);
      --danger: #ff5a2d;

      --wm-sb-bg-color: #333;
      --dm-sb-bg-color: #000;
      --wm-sb-item-color: #000;
      --dm-sb-item-color: #fff;
      --wm-ct-bg-color: #f4f4f4;
      --dm-ct-bg-color: #303030;
      --wm-ct-text-color: #000;
      --dm-ct-text-color: #fff;
    }

    * {
      box-sizing: border-box;
    }

    html,
    body {
      width: 100%;
      height: 100%;
      margin: 0;
    }

    body {
      min-height: 100svh;
      overflow: hidden;
      background: var(--page-bg);
      color: var(--ink);
      font-family: Impact, Haettenschweiler, "Arial Narrow Bold", system-ui, sans-serif;
    }

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

    a:hover {
      text-decoration: underline;
    }

    .stage {
      position: relative;
      isolation: isolate;
      width: 100%;
      height: 100svh;
      min-height: 420px;
      overflow: hidden;
      background:
        radial-gradient(circle at 54% 42%, rgba(255, 195, 40, 0.18), transparent 30%),
        linear-gradient(90deg, rgba(0, 0, 0, 0.86), rgba(0, 0, 0, 0.28) 48%, rgba(0, 0, 0, 0.72)),
        var(--bg-image) center / cover no-repeat;
    }

    .stage::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      background:
        repeating-linear-gradient(
          0deg,
          rgba(255, 255, 255, 0.035) 0,
          rgba(255, 255, 255, 0.035) 1px,
          transparent 1px,
          transparent 4px
        ),
        radial-gradient(circle at center, transparent 42%, rgba(0, 0, 0, 0.75) 100%);
      mix-blend-mode: screen;
      pointer-events: none;
    }

    .stage::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: clamp(96px, 20vh, 180px);
      z-index: 1;
      background:
        linear-gradient(0deg, rgba(0, 0, 0, 0.86), transparent 78%),
        repeating-linear-gradient(
          -45deg,
          #151008 0 34px,
          #151008 34px 68px,
          rgba(255, 191, 26, 0.94) 68px 102px,
          rgba(255, 191, 26, 0.94) 102px 136px
        );
      filter: drop-shadow(0 -20px 38px rgba(0, 0, 0, 0.82));
      opacity: 0.78;
      pointer-events: none;
    }

    .topbar {
      position: absolute;
      top: clamp(14px, 3vw, 34px);
      left: clamp(14px, 4vw, 56px);
      right: clamp(14px, 4vw, 56px);
      z-index: 4;
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 16px;
    }

    .brand {
      margin: 0;
      max-width: 980px;
      color: var(--ink);
      font-size: clamp(2.45rem, 9vw, 7.6rem);
      line-height: 0.82;
      letter-spacing: 0.02em;
      text-transform: uppercase;
      text-shadow:
        0 0 2px #fff,
        0 0 12px rgba(255, 245, 180, 0.9),
        0 7px 0 rgba(41, 28, 0, 0.88),
        0 18px 30px rgba(0, 0, 0, 0.9);
      -webkit-text-stroke: 1px rgba(35, 25, 0, 0.55);
    }

    .badge {
      display: grid;
      place-items: center;
      min-width: 84px;
      min-height: 84px;
      padding: 12px;
      border: 2px solid rgba(255, 191, 26, 0.72);
      border-radius: 50%;
      background:
        radial-gradient(circle, rgba(255, 191, 26, 0.96), rgba(255, 122, 28, 0.92) 58%, rgba(32, 19, 0, 0.92));
      color: #1a1000;
      box-shadow: 0 16px 42px var(--shadow), inset 0 0 0 5px rgba(0, 0, 0, 0.18);
      font-size: 2rem;
      line-height: 1;
      transform: rotate(7deg);
    }

    .worker {
      --worker-x: 0%;
      position: absolute;
      left: auto;
      right: clamp(14px, 1vw, 132px);
      bottom: max(-1vh, -24px);
      z-index: 3;
      width: clamp(750px, 42vw, 720px);
      height: min(86svh, 760px);
      transform: translateX(var(--worker-x)) scale(1);
      object-fit: contain;
      object-position: center bottom;
      filter:
        drop-shadow(0 34px 36px rgba(0, 0, 0, 0.9))
        drop-shadow(0 0 24px rgba(255, 191, 26, 0.16));
      user-select: none;
      pointer-events: none;
    }

    .notice {
      position: absolute;
      left: clamp(16px, 5vw, 70px);
      bottom: clamp(22px, 7vh, 76px);
      z-index: 5;
      width: min(520px, calc(100vw - 32px));
      padding: clamp(18px, 3vw, 28px);
      border: 1px solid var(--panel-line);
      border-radius: 24px;
      background:
        linear-gradient(135deg, rgba(255, 191, 26, 0.16), transparent 38%),
        var(--panel);
      box-shadow:
        0 28px 80px rgba(0, 0, 0, 0.72),
        inset 0 1px 0 rgba(255, 255, 255, 0.14);
      backdrop-filter: blur(10px) saturate(1.18);
    }

    .notice__eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
      color: var(--hazard);
      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
      font-size: 0.78rem;
      font-weight: 800;
      letter-spacing: 0.16em;
      text-transform: uppercase;
    }

    .notice__eyebrow::before {
      content: "";
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--danger);
      box-shadow: 0 0 18px var(--danger);
    }

    .notice h2 {
      margin: 0 0 10px;
      font-size: clamp(1.55rem, 4vw, 3.2rem);
      line-height: 0.95;
      text-transform: uppercase;
      text-shadow: 0 4px 18px rgba(0, 0, 0, 0.86);
    }

    .notice p {
      margin: 0;
      max-width: 42rem;
      color: rgba(255, 252, 226, 0.86);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      font-size: clamp(0.98rem, 1.8vw, 1.08rem);
      line-height: 1.55;
    }

    .actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 16px;
      border: 1px solid rgba(255, 191, 26, 0.82);
      border-radius: 999px;
      background: linear-gradient(180deg, #ffd85a, #ff9f1a);
      color: #181000;
      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
      font-size: 0.82rem;
      font-weight: 900;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      box-shadow: 0 12px 24px rgba(0, 0, 0, 0.42);
      cursor: pointer;
    }

    .button--ghost {
      background: rgba(0, 0, 0, 0.38);
      color: var(--ink);
    }

    .corner-copy {
      position: absolute;
      right: clamp(16px, 4vw, 54px);
      bottom: clamp(18px, 4vh, 46px);
      z-index: 5;
      max-width: 280px;
      color: rgba(255, 252, 226, 0.74);
      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
      font-size: 0.74rem;
      line-height: 1.5;
      text-align: right;
      text-shadow: 0 2px 8px #000;
    }

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

    @media (prefers-color-scheme: dark) {
      .sidebar {
        color: var(--dm-sb-item-color);
        background-color: var(--dm-sb-bg-color);
      }

      .content {
        color: var(--dm-ct-text-color);
        background-color: var(--dm-ct-bg-color);
      }
    }

    @media (orientation: portrait) {
      .topbar {
        align-items: center;
      }

      .brand {
        font-size: clamp(2.25rem, 13vw, 5.2rem);
      }

      .badge {
        min-width: 58px;
        min-height: 58px;
        font-size: 1.35rem;
      }

      .worker {
        left: 50%;
        right: auto;
        bottom: clamp(230px, 38svh, 420px);
        z-index: 2;
        width: min(104vw, 680px);
        height: 48svh;
        --worker-x: -50%;
        opacity: 0.94;
      }

      .notice {
        left: 50%;
        bottom: 18px;
        width: min(520px, calc(100vw - 24px));
        max-height: min(360px, 45svh);
        overflow: auto;
        transform: translateX(-50%);
      }

      .corner-copy {
        display: none;
      }
    }

    @media (max-width: 760px) {
      .stage {
        background-position: 58% center;
      }

      .stage::after {
        height: 18vh;
        opacity: 0.66;
      }

      .topbar {
        top: 12px;
        left: 12px;
        right: 12px;
      }

      .brand {
        font-size: clamp(2.05rem, 9vw, 4.0rem);
        line-height: 0.84;
      }

      .badge {
        min-width: 52px;
        min-height: 52px;
        font-size: 1.2rem;
      }

      .worker {
        left: 50%;
        right: auto;
        bottom: clamp(210px, 38svh, 360px);
        width: min(94vw, 520px);
        height: clamp(240px, 42svh, 420px);
        --worker-x: -50%;
      }

      .notice {
        left: 50%;
        bottom: 12px;
        width: min(500px, calc(100vw - 24px));
        max-height: min(330px, 46svh);
        padding: clamp(14px, 4vw, 18px);
        border-radius: 20px;
        overflow: auto;
        transform: translateX(-50%);
      }

      .notice__eyebrow {
        margin-bottom: 8px;
        font-size: 0.68rem;
      }

      .notice h2 {
        font-size: clamp(1.45rem, 9vw, 2.55rem);
      }

      .notice p {
        font-size: 0.92rem;
        line-height: 1.45;
      }

      .actions {
        margin-top: 12px;
      }

      .button {
        min-height: 38px;
        padding: 0 12px;
        font-size: 0.72rem;
      }

      .corner-copy {
        display: none;
      }
    }

    @media (max-width: 760px) and (max-height: 620px) {
      .worker {
        bottom: 44svh;
        height: 36svh;
      }

      .notice {
        max-height: 42svh;
      }
    }

    @media (prefers-reduced-motion: no-preference) {
      .brand {
        animation: title-glow 4.2s ease-in-out infinite;
      }

      .worker {
        animation: hero-breathe 5.5s ease-in-out infinite;
      }

      .badge {
        animation: badge-warn 1.8s steps(2, end) infinite;
      }
    }

    @keyframes title-glow {
      0%, 100% {
        text-shadow:
          0 0 2px #fff,
          0 0 12px rgba(255, 245, 180, 0.9),
          0 7px 0 rgba(41, 28, 0, 0.88),
          0 18px 30px rgba(0, 0, 0, 0.9);
      }

      50% {
        text-shadow:
          0 0 3px #fff,
          0 0 20px rgba(255, 214, 90, 0.98),
          0 7px 0 rgba(41, 28, 0, 0.88),
          0 18px 34px rgba(0, 0, 0, 0.95);
      }
    }

    @keyframes hero-breathe {
      0%, 100% {
        transform: translateX(var(--worker-x)) scale(1);
      }

      50% {
        transform: translateX(var(--worker-x)) scale(1.012);
      }
    }

    @keyframes badge-warn {
      0%, 100% {
        filter: brightness(1);
      }

      50% {
        filter: brightness(1.22);
      }
    }