06Neumorphism dock

<main class="stage">
  <div class="nu is-demo" id="nu">
    <nav class="nu__dock" aria-label="Main menu">
      <button class="nu__btn" type="button" aria-label="Home" aria-pressed="true">
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" aria-hidden="true"><g fill="currentColor"><path d="M216 120v96h-64v-64h-48v64H40v-96a8 8 0 0 1 2.34-5.66l80-80a8 8 0 0 1 11.32 0l80 80A8 8 0 0 1 216 120" opacity=".2"/><path d="m219.31 108.68l-80-80a16 16 0 0 0-22.62 0l-80 80A15.87 15.87 0 0 0 32 120v96a8 8 0 0 0 8 8h64a8 8 0 0 0 8-8v-56h32v56a8 8 0 0 0 8 8h64a8 8 0 0 0 8-8v-96a15.87 15.87 0 0 0-4.69-11.32M208 208h-48v-56a8 8 0 0 0-8-8h-48a8 8 0 0 0-8 8v56H48v-88l80-80l80 80Z"/></g></svg>
      </button>
      <button class="nu__btn" type="button" aria-label="Search" aria-pressed="false">
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" aria-hidden="true"><g fill="currentColor"><path d="M192 112a80 80 0 1 1-80-80a80 80 0 0 1 80 80" opacity=".2"/><path d="m229.66 218.34l-50.06-50.06a88.21 88.21 0 1 0-11.32 11.31l50.06 50.07a8 8 0 0 0 11.32-11.32M40 112a72 72 0 1 1 72 72a72.08 72.08 0 0 1-72-72"/></g></svg>
      </button>
      <button class="nu__btn" type="button" aria-label="Files" aria-pressed="false">
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" aria-hidden="true"><g fill="currentColor"><path d="M128 80H32V56a8 8 0 0 1 8-8h52.69a8 8 0 0 1 5.65 2.34Z" opacity=".2"/><path d="M216 72h-84.69L104 44.69A15.86 15.86 0 0 0 92.69 40H40a16 16 0 0 0-16 16v144.62A15.4 15.4 0 0 0 39.38 216h177.51A15.13 15.13 0 0 0 232 200.89V88a16 16 0 0 0-16-16M92.69 56l16 16H40V56ZM216 200H40V88h176Z"/></g></svg>
      </button>
      <button class="nu__btn" type="button" aria-label="Alerts" aria-pressed="false">
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" aria-hidden="true"><g fill="currentColor"><path d="M208 192H48a8 8 0 0 1-6.88-12C47.71 168.6 56 139.81 56 104a72 72 0 0 1 144 0c0 35.82 8.3 64.6 14.9 76a8 8 0 0 1-6.9 12" opacity=".2"/><path d="M221.8 175.94c-5.55-9.56-13.8-36.61-13.8-71.94a80 80 0 1 0-160 0c0 35.34-8.26 62.38-13.81 71.94A16 16 0 0 0 48 200h40.81a40 40 0 0 0 78.38 0H208a16 16 0 0 0 13.8-24.06M128 216a24 24 0 0 1-22.62-16h45.24A24 24 0 0 1 128 216m-80-32c7.7-13.24 16-43.92 16-80a64 64 0 1 1 128 0c0 36.05 8.28 66.73 16 80Z"/></g></svg>
      </button>
      <button class="nu__btn" type="button" aria-label="Profile" aria-pressed="false">
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" aria-hidden="true"><g fill="currentColor"><path d="M192 96a64 64 0 1 1-64-64a64 64 0 0 1 64 64" opacity=".2"/><path d="M230.92 212c-15.23-26.33-38.7-45.21-66.09-54.16a72 72 0 1 0-73.66 0c-27.39 8.94-50.86 27.82-66.09 54.16a8 8 0 1 0 13.85 8c18.84-32.56 52.14-52 89.07-52s70.23 19.44 89.07 52a8 8 0 1 0 13.85-8M72 96a56 56 0 1 1 56 56a56.06 56.06 0 0 1-56-56"/></g></svg>
      </button>
    </nav>
    <p class="nu__cap">The pressed icon has its shadow carved inward</p>
  </div>
</main>

@use "../../../../site/static/demo-tokens" as *;

$duration: $dur-quick;
$easing: $ease-out;
$color: #6d5fae;

$bg: #e8e6f0;
$light: #ffffff;
$dark: #a9a3c0;

@include stage($bg);

.nu {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: $sp-5;
}
.nu__dock {
  display: flex;
  gap: $sp-3;
  padding: $sp-3 $sp-4;
  border-radius: $r-pill;
  background: $bg;
  box-shadow: 8px 8px 16px $dark, -8px -8px 16px $light;
}
.nu__btn {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: $bg;
  color: rgba(60, 54, 84, .6);
  cursor: pointer;
  /* 떠오른 상태 — 바깥 그림자 두 개 */
  box-shadow: 5px 5px 10px $dark, -5px -5px 10px $light;
  transition: box-shadow $duration $easing, color $duration $easing;
}
.nu__btn svg { width: 22px; height: 22px; display: block; }
.nu__btn:focus-visible { outline: 2px solid $color; outline-offset: 4px; }
.nu__btn[aria-pressed="true"] {
  color: $color;
  /* 눌린 상태 — 같은 그림자를 inset 으로 뒤집는다 */
  box-shadow: inset 5px 5px 10px $dark, inset -5px -5px 10px $light;
}
.nu__cap {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(60, 54, 84, .82);   // 뉴모피즘 연면 위 흐린 글자 3.40:1 → 4.6:1 이상
}

/* 자동 재생 — 왼쪽부터 하나씩 눌렸다 떠오른다. 마지막은 84% 에 풀린다 */
.is-demo .nu__btn {
  animation-name: nu-press;
  animation-duration: 2s;
  animation-timing-function: $ease-out;
  animation-iteration-count: infinite;
}
.is-demo .nu__btn:nth-child(2) { animation-delay: .34s; }
.is-demo .nu__btn:nth-child(3) { animation-delay: .68s; }
.is-demo .nu__btn:nth-child(4) { animation-delay: 1.02s; }
.is-demo .nu__btn:nth-child(5) { animation-delay: 1.36s; }
@keyframes nu-press {
  0% { box-shadow: 5px 5px 10px $dark, -5px -5px 10px $light; color: rgba(60, 54, 84, .6); }
  8% { box-shadow: inset 5px 5px 10px $dark, inset -5px -5px 10px $light; color: $color; }
  17% { box-shadow: inset 5px 5px 10px $dark, inset -5px -5px 10px $light; color: $color; }
  24% { box-shadow: 5px 5px 10px $dark, -5px -5px 10px $light; color: rgba(60, 54, 84, .6); }
  100% { box-shadow: 5px 5px 10px $dark, -5px -5px 10px $light; color: rgba(60, 54, 84, .6); }
}

@media (max-width: 340px) {
  .nu__dock { gap: $sp-2; padding: $sp-2 $sp-3; }
  .nu__btn { width: 44px; height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  .is-demo .nu__btn { animation-name: none; }
  .nu__btn { transition: none; }
}

@charset "UTF-8";
html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #e8e6f0;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.nu {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.nu__dock {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 999px;
  background: #e8e6f0;
  box-shadow: 8px 8px 16px #a9a3c0, -8px -8px 16px #ffffff;
}

.nu__btn {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #e8e6f0;
  color: rgba(60, 54, 84, 0.6);
  cursor: pointer;
  /* 떠오른 상태 — 바깥 그림자 두 개 */
  box-shadow: 5px 5px 10px #a9a3c0, -5px -5px 10px #ffffff;
  transition: box-shadow 220ms ease-out, color 220ms ease-out;
}

.nu__btn svg {
  width: 22px;
  height: 22px;
  display: block;
}

.nu__btn:focus-visible {
  outline: 2px solid #6d5fae;
  outline-offset: 4px;
}

.nu__btn[aria-pressed=true] {
  color: #6d5fae;
  /* 눌린 상태 — 같은 그림자를 inset 으로 뒤집는다 */
  box-shadow: inset 5px 5px 10px #a9a3c0, inset -5px -5px 10px #ffffff;
}

.nu__cap {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(60, 54, 84, 0.82);
}

/* 자동 재생 — 왼쪽부터 하나씩 눌렸다 떠오른다. 마지막은 84% 에 풀린다 */
.is-demo .nu__btn {
  animation-name: nu-press;
  animation-duration: 2s;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
}

.is-demo .nu__btn:nth-child(2) {
  animation-delay: 0.34s;
}

.is-demo .nu__btn:nth-child(3) {
  animation-delay: 0.68s;
}

.is-demo .nu__btn:nth-child(4) {
  animation-delay: 1.02s;
}

.is-demo .nu__btn:nth-child(5) {
  animation-delay: 1.36s;
}

@keyframes nu-press {
  0% {
    box-shadow: 5px 5px 10px #a9a3c0, -5px -5px 10px #ffffff;
    color: rgba(60, 54, 84, 0.6);
  }
  8% {
    box-shadow: inset 5px 5px 10px #a9a3c0, inset -5px -5px 10px #ffffff;
    color: #6d5fae;
  }
  17% {
    box-shadow: inset 5px 5px 10px #a9a3c0, inset -5px -5px 10px #ffffff;
    color: #6d5fae;
  }
  24% {
    box-shadow: 5px 5px 10px #a9a3c0, -5px -5px 10px #ffffff;
    color: rgba(60, 54, 84, 0.6);
  }
  100% {
    box-shadow: 5px 5px 10px #a9a3c0, -5px -5px 10px #ffffff;
    color: rgba(60, 54, 84, 0.6);
  }
}
@media (max-width: 340px) {
  .nu__dock {
    gap: 8px;
    padding: 8px 12px;
  }
  .nu__btn {
    width: 44px;
    height: 44px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .is-demo .nu__btn {
    animation-name: none;
  }
  .nu__btn {
    transition: none;
  }
}

// 실제 동작: 클릭 → aria-pressed 를 옮긴다. 눌린 표현은 CSS 가 [aria-pressed="true"] 로 그린다.
var root = document.getElementById('nu');
var btns = Array.prototype.slice.call(root.querySelectorAll('.nu__btn'));
btns.forEach(function (b) {
  b.addEventListener('pointerdown', function () { root.classList.remove('is-demo'); });
  b.addEventListener('click', function () {
    btns.forEach(function (x) { x.setAttribute('aria-pressed', String(x === b)); });
  });
});

import { useState } from "react";
import type { CSSProperties } from "react";
import styles from "./NeuSoftDock.module.scss";

export type NeuSoftDockProps = {
  /** 처음 눌려 있는 칸 */
  start?: number;
  duration?: number;
  easing?: string;
  color?: string;
};

type Vars = CSSProperties & { "--duration"?: string; "--easing"?: string; "--color"?: string };

const ITEMS = [
  {
    label: "Home",
    icon: (
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" aria-hidden="true"><g fill="currentColor"><path d="M216 120v96h-64v-64h-48v64H40v-96a8 8 0 0 1 2.34-5.66l80-80a8 8 0 0 1 11.32 0l80 80A8 8 0 0 1 216 120" opacity=".2" /><path d="m219.31 108.68l-80-80a16 16 0 0 0-22.62 0l-80 80A15.87 15.87 0 0 0 32 120v96a8 8 0 0 0 8 8h64a8 8 0 0 0 8-8v-56h32v56a8 8 0 0 0 8 8h64a8 8 0 0 0 8-8v-96a15.87 15.87 0 0 0-4.69-11.32M208 208h-48v-56a8 8 0 0 0-8-8h-48a8 8 0 0 0-8 8v56H48v-88l80-80l80 80Z" /></g></svg>
    ),
  },
  {
    label: "Search",
    icon: (
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" aria-hidden="true"><g fill="currentColor"><path d="M192 112a80 80 0 1 1-80-80a80 80 0 0 1 80 80" opacity=".2" /><path d="m229.66 218.34l-50.06-50.06a88.21 88.21 0 1 0-11.32 11.31l50.06 50.07a8 8 0 0 0 11.32-11.32M40 112a72 72 0 1 1 72 72a72.08 72.08 0 0 1-72-72" /></g></svg>
    ),
  },
  {
    label: "Files",
    icon: (
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" aria-hidden="true"><g fill="currentColor"><path d="M128 80H32V56a8 8 0 0 1 8-8h52.69a8 8 0 0 1 5.65 2.34Z" opacity=".2" /><path d="M216 72h-84.69L104 44.69A15.86 15.86 0 0 0 92.69 40H40a16 16 0 0 0-16 16v144.62A15.4 15.4 0 0 0 39.38 216h177.51A15.13 15.13 0 0 0 232 200.89V88a16 16 0 0 0-16-16M92.69 56l16 16H40V56ZM216 200H40V88h176Z" /></g></svg>
    ),
  },
  {
    label: "Alerts",
    icon: (
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" aria-hidden="true"><g fill="currentColor"><path d="M208 192H48a8 8 0 0 1-6.88-12C47.71 168.6 56 139.81 56 104a72 72 0 0 1 144 0c0 35.82 8.3 64.6 14.9 76a8 8 0 0 1-6.9 12" opacity=".2" /><path d="M221.8 175.94c-5.55-9.56-13.8-36.61-13.8-71.94a80 80 0 1 0-160 0c0 35.34-8.26 62.38-13.81 71.94A16 16 0 0 0 48 200h40.81a40 40 0 0 0 78.38 0H208a16 16 0 0 0 13.8-24.06M128 216a24 24 0 0 1-22.62-16h45.24A24 24 0 0 1 128 216m-80-32c7.7-13.24 16-43.92 16-80a64 64 0 1 1 128 0c0 36.05 8.28 66.73 16 80Z" /></g></svg>
    ),
  },
  {
    label: "Profile",
    icon: (
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" aria-hidden="true"><g fill="currentColor"><path d="M192 96a64 64 0 1 1-64-64a64 64 0 0 1 64 64" opacity=".2" /><path d="M230.92 212c-15.23-26.33-38.7-45.21-66.09-54.16a72 72 0 1 0-73.66 0c-27.39 8.94-50.86 27.82-66.09 54.16a8 8 0 1 0 13.85 8c18.84-32.56 52.14-52 89.07-52s70.23 19.44 89.07 52a8 8 0 1 0 13.85-8M72 96a56 56 0 1 1 56 56a56.06 56.06 0 0 1-56-56" /></g></svg>
    ),
  },
];

export default function NeuSoftDock({
  start = 0,
  duration = 220,
  easing = "ease-out",
  color = "#6d5fae",
}: NeuSoftDockProps) {
  // 클릭 → aria-pressed 를 옮긴다. 눌린 표현은 CSS 가 [aria-pressed="true"] 로 그린다.
  const [on, setOn] = useState(start);

  const vars: Vars = {
    "--duration": `${duration}ms`,
    "--easing": easing,
    "--color": color,
  };

  return (
    <div className={styles.nu} style={vars}>
      <nav className={styles.dock} aria-label="Main menu">
        {ITEMS.map(function (it, i) {
          return (
            <button
              className={styles.btn}
              type="button"
              key={it.label}
              aria-label={it.label}
              aria-pressed={i === on}
              onClick={function () { setOn(i); }}
            >
              {it.icon}
            </button>
          );
        })}
      </nav>
      <p className={styles.cap}>The pressed icon has its shadow carved inward</p>
    </div>
  );
}