02손그림 동그라미 내비

<main class="stage">
  <svg width="0" height="0" style="position:absolute" aria-hidden="true" focusable="false">
    <filter id="rough2" x="-40%" y="-40%" width="180%" height="180%">
      <feTurbulence type="fractalNoise" baseFrequency="0.05 0.08" numOctaves="2" seed="9" result="n"/>
      <feDisplacementMap in="SourceGraphic" in2="n" scale="5" xChannelSelector="R" yChannelSelector="G"/>
    </filter>
  </svg>
  <nav class="navcrayon">
    <span class="navcrayon__brand">크레용</span>
    <ul class="navcrayon__list">
      <li class="navcrayon__item navcrayon__item--active">
        <span class="navcrayon__label">홈</span>
        <svg class="navcrayon__loop" viewBox="0 0 56 30" aria-hidden="true">
          <path class="navcrayon__loop-path" d="M28 4 C 13 2, 4 11, 7 17 C 9 25, 20 28, 29 26 C 41 24, 50 17, 47 10 C 45 4, 33 2, 25 5" />
        </svg>
      </li>
      <li class="navcrayon__item"><span class="navcrayon__label">클래스</span></li>
      <li class="navcrayon__item"><span class="navcrayon__label">요금제</span></li>
      <li class="navcrayon__item"><span class="navcrayon__label">문의</span></li>
    </ul>
    <button class="navcrayon__cta" type="button">체험 신청</button>
  </nav>
</main>

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

$duration: $dur-loop;       // 동그라미가 한 번 그려지는 주기
$easing:   $ease-out;       // 선이 그려지는 곡선
$color:    $stage-ink;      // 글자 색 기본값(토큰) — 아래 크레용 잉크로 덮는다

$crayon-paper:  #fff8ef;
$crayon-ink:    #33261c;
$crayon-red:    #dbb6b7;
$crayon-yellow: #d1c5a2;
$crayon-blue:   #9cb8ce;
$crayon-green:  #6dbe6d;
$crayon-purple: #cbbfe0;

@include stage($crayon-paper);

.navcrayon {
  display: flex;
  align-items: center;
  gap: $sp-4;
  width: clamp(260px, 88vw, 380px);
  padding: $sp-2 $sp-3;
  border-radius: $r-pill;
  background: $stage-paper;
  border: 3px solid $crayon-ink;
}
.navcrayon__brand {
  flex-shrink: 0;
  color: $crayon-ink;
  font-weight: 700;
  font-size: clamp(12px, 3vw, 14px);
  padding-left: $sp-2;
}
.navcrayon__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: $sp-3;
  min-width: 0;
  flex: 1;
}
.navcrayon__item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: $sp-1 $sp-2;
}
.navcrayon__label {
  position: relative;
  z-index: 1;
  color: rgba($crayon-ink, .72);
  font-weight: 600;
  font-size: clamp(10px, 2.6vw, 12px);
  white-space: nowrap;
}
.navcrayon__item--active .navcrayon__label {
  color: $crayon-ink;
}
.navcrayon__loop {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 58px;
  height: 32px;
  transform: translate(-50%, -50%);
  overflow: visible;
  pointer-events: none;
  filter: url(#rough2);
}
.navcrayon__loop-path {
  fill: none;
  stroke: $crayon-red;
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 110;
  animation: loopDraw $duration $easing infinite;
}
.navcrayon__cta {
  flex-shrink: 0;
  border: 0;
  border-radius: $r-pill;
  background: $crayon-yellow;
  color: $crayon-ink;
  padding: $sp-2 $sp-4;
  font-weight: 700;
  font-size: clamp(10px, 2.6vw, 12px);
  white-space: nowrap;
}
.navcrayon__cta:focus-visible {
  outline: 3px solid $crayon-ink;
  outline-offset: 2px;
}

// 데모: 활성 탭 둘레를 크레용으로 감싸는 동그라미가 그려졌다 지워지길 반복한다
@keyframes loopDraw {
  0%   { stroke-dashoffset: 110; opacity: 0; }
  8%   { opacity: 1; }
  55%  { stroke-dashoffset: 0; opacity: 1; }
  85%  { stroke-dashoffset: 0; opacity: 1; }
  100% { stroke-dashoffset: -110; opacity: 0; }
}

@media (max-width: 340px), (max-height: 220px) {
  .navcrayon { gap: $sp-2; padding: $sp-1 $sp-2; }
  .navcrayon__brand { display: none; }
  .navcrayon__list { gap: $sp-1; }
  .navcrayon__cta { padding: $sp-1 $sp-3; }
}

@media (prefers-reduced-motion: reduce) {
  .navcrayon__loop-path {
    animation: none !important;
    stroke-dashoffset: 0;
    opacity: 1;
  }
}

html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #fff8ef;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.navcrayon {
  display: flex;
  align-items: center;
  gap: 16px;
  width: clamp(260px, 88vw, 380px);
  padding: 8px 12px;
  border-radius: 999px;
  background: #ffffff;
  border: 3px solid #33261c;
}

.navcrayon__brand {
  flex-shrink: 0;
  color: #33261c;
  font-weight: 700;
  font-size: clamp(12px, 3vw, 14px);
  padding-left: 8px;
}

.navcrayon__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1;
}

.navcrayon__item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
}

.navcrayon__label {
  position: relative;
  z-index: 1;
  color: rgba(51, 38, 28, 0.72);
  font-weight: 600;
  font-size: clamp(10px, 2.6vw, 12px);
  white-space: nowrap;
}

.navcrayon__item--active .navcrayon__label {
  color: #33261c;
}

.navcrayon__loop {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 58px;
  height: 32px;
  transform: translate(-50%, -50%);
  overflow: visible;
  pointer-events: none;
  filter: url(#rough2);
}

.navcrayon__loop-path {
  fill: none;
  stroke: #dbb6b7;
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 110;
  animation: loopDraw 2s ease-out infinite;
}

.navcrayon__cta {
  flex-shrink: 0;
  border: 0;
  border-radius: 999px;
  background: #d1c5a2;
  color: #33261c;
  padding: 8px 16px;
  font-weight: 700;
  font-size: clamp(10px, 2.6vw, 12px);
  white-space: nowrap;
}

.navcrayon__cta:focus-visible {
  outline: 3px solid #33261c;
  outline-offset: 2px;
}

@keyframes loopDraw {
  0% {
    stroke-dashoffset: 110;
    opacity: 0;
  }
  8% {
    opacity: 1;
  }
  55% {
    stroke-dashoffset: 0;
    opacity: 1;
  }
  85% {
    stroke-dashoffset: 0;
    opacity: 1;
  }
  100% {
    stroke-dashoffset: -110;
    opacity: 0;
  }
}
@media (max-width: 340px), (max-height: 220px) {
  .navcrayon {
    gap: 8px;
    padding: 4px 8px;
  }
  .navcrayon__brand {
    display: none;
  }
  .navcrayon__list {
    gap: 4px;
  }
  .navcrayon__cta {
    padding: 4px 12px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .navcrayon__loop-path {
    animation: none !important;
    stroke-dashoffset: 0;
    opacity: 1;
  }
}

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

export type NavCrayonProps = {
  brand?: string;
  tabs?: string[];
  active?: number;
  cta?: string;
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function NavCrayon({
  brand = "크레용",
  tabs = ["홈", "클래스", "요금제", "문의"],
  active = 0,
  cta = "체험 신청",
  duration = 2000,
  easing = "ease-out",
  color = "#ff5a5f",
}: NavCrayonProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <nav className={styles.nav} style={vars}>
      <svg width="0" height="0" style={{ position: "absolute" }} aria-hidden="true" focusable="false">
        <filter id="nc-rough" x="-40%" y="-40%" width="180%" height="180%">
          <feTurbulence type="fractalNoise" baseFrequency={0.06} numOctaves={2} seed={9} result="n" />
          <feDisplacementMap in="SourceGraphic" in2="n" scale={5} xChannelSelector="R" yChannelSelector="G" />
        </filter>
      </svg>
      <span className={styles.brand}>{brand}</span>
      <ul className={styles.list}>
        {tabs.map((t, i) => (
          <li key={t} className={styles.item}>
            <span className={i === active ? `${styles.label} ${styles.labelActive}` : styles.label}>{t}</span>
            {i === active && (
              <svg className={styles.loop} viewBox="0 0 56 30" aria-hidden="true">
                <path className={styles.loopPath} d="M28 4 C 13 2, 4 11, 7 17 C 9 25, 20 28, 29 26 C 41 24, 50 17, 47 10 C 45 4, 33 2, 25 5" />
              </svg>
            )}
          </li>
        ))}
      </ul>
      <button type="button" className={styles.cta}>{cta}</button>
    </nav>
  );
}