02Stamp nav

<main class="stage">
  <nav class="nav">
    <span class="nav__brand">SLABKIT</span>
    <div class="nav__links">
      <span class="nav__link nav__link--active is-demo">Home</span>
      <span class="nav__link">Features</span>
      <span class="nav__link">Pricing</span>
      <span class="nav__link">Contact</span>
    </div>
    <button class="nav__cta" type="button">Get started</button>
  </nav>
</main>

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

$duration: $dur-loop;       // 스탬프 한 번 찍히는 주기
$easing: $ease-pop;         // 오버슈트 곡선
$color: $stage-orange;      // 스탬프 블록 색

$border: 3px;

@include stage($stage-yellow);

.nav {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  gap: $sp-3;
  width: clamp(260px, 90vw, 420px);
  padding: $sp-2 $sp-3;
  border: $border solid $subject-ink;
  border-radius: 0;
  background: $subject-ink;
  box-shadow: $sp-2 $sp-2 0 $subject-ink;
}
.nav__brand {
  flex-shrink: 0;
  white-space: nowrap;
  color: $subject-cream;
  font-weight: 900;
  font-size: clamp(12px, 2.6vw, 14px);
  letter-spacing: .02em;
  text-transform: uppercase;
}
.nav__links {
  min-width: 0;
  flex: 1;
  display: flex;
  align-items: center;
  gap: $sp-2;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav__links::-webkit-scrollbar { display: none; }
.nav__link {
  box-sizing: border-box;
  position: relative;
  flex: 0 0 auto;
  white-space: nowrap;
  color: rgba($subject-cream, .68);
  font-weight: 700;
  font-size: clamp(10px, 2.2vw, 12px);
  padding: $sp-1 $sp-2;
  z-index: 1;
}
.nav__link--active { color: $subject-cream; }
.nav__link--active::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border: $border solid $subject-cream;
  border-radius: 0;
  background: $color;
  animation: stamp $duration $easing infinite;
}
.nav__cta {
  box-sizing: border-box;
  flex-shrink: 0;
  white-space: nowrap;
  border: $border solid $subject-cream;
  border-radius: $r-pill;
  background: $stage-yellow;
  color: $subject-ink;
  padding: $sp-1 $sp-4;
  font-weight: 800;
  font-size: clamp(10px, 2.2vw, 12px);
  box-shadow: $sp-1 $sp-1 0 $subject-cream;
}

// 데모: 현재 칸의 색 블록이 스탬프처럼 커졌다 튕기며 자리 잡는다. JS 0줄
@keyframes stamp {
  0%, 40%  { transform: scale(.75); opacity: 0; }
  55%      { transform: scale(1.18); opacity: 1; }
  70%      { transform: scale(.92); opacity: 1; }
  85%, 100% { transform: scale(1); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .nav__link--active::before {
    animation: none !important;
    transform: scale(1);
    opacity: 1;
  }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffd23f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.nav {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  gap: 12px;
  width: clamp(260px, 90vw, 420px);
  padding: 8px 12px;
  border: 3px solid #17141a;
  border-radius: 0;
  background: #17141a;
  box-shadow: 8px 8px 0 #17141a;
}

.nav__brand {
  flex-shrink: 0;
  white-space: nowrap;
  color: #fff7e6;
  font-weight: 900;
  font-size: clamp(12px, 2.6vw, 14px);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.nav__links {
  min-width: 0;
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav__links::-webkit-scrollbar {
  display: none;
}

.nav__link {
  box-sizing: border-box;
  position: relative;
  flex: 0 0 auto;
  white-space: nowrap;
  color: rgba(255, 247, 230, 0.68);
  font-weight: 700;
  font-size: clamp(10px, 2.2vw, 12px);
  padding: 4px 8px;
  z-index: 1;
}

.nav__link--active {
  color: #fff7e6;
}

.nav__link--active::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border: 3px solid #fff7e6;
  border-radius: 0;
  background: #ff4d1f;
  animation: stamp 2s cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

.nav__cta {
  box-sizing: border-box;
  flex-shrink: 0;
  white-space: nowrap;
  border: 3px solid #fff7e6;
  border-radius: 999px;
  background: #ffd23f;
  color: #17141a;
  padding: 4px 16px;
  font-weight: 800;
  font-size: clamp(10px, 2.2vw, 12px);
  box-shadow: 4px 4px 0 #fff7e6;
}

@keyframes stamp {
  0%, 40% {
    transform: scale(0.75);
    opacity: 0;
  }
  55% {
    transform: scale(1.18);
    opacity: 1;
  }
  70% {
    transform: scale(0.92);
    opacity: 1;
  }
  85%, 100% {
    transform: scale(1);
    opacity: 1;
  }
}
@media (prefers-reduced-motion: reduce) {
  .nav__link--active::before {
    animation: none !important;
    transform: scale(1);
    opacity: 1;
  }
}

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

export type NavLink = { label: string; active?: boolean };

export type NavBrutalistProps = {
  brand?: string;
  links?: NavLink[];
  cta?: string;
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function NavBrutalist({
  brand = "SLABKIT",
  links = [
    { label: "홈", active: true },
    { label: "기능" },
    { label: "요금제" },
    { label: "문의" },
  ],
  cta = "시작하기",
  duration = 2000,
  easing = "cubic-bezier(.2,1.4,.4,1)",
  color = "#ff4d1f",
}: NavBrutalistProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <nav className={styles.nav} style={vars}>
      <span className={styles.brand}>{brand}</span>
      <div className={styles.links}>
        {links.map((l) => (
          <span key={l.label} className={`${styles.link} ${l.active ? styles.linkActive : ""}`}>
            {l.label}
          </span>
        ))}
      </div>
      <button type="button" className={styles.cta}>{cta}</button>
    </nav>
  );
}