01Hero giới thiệu

<main class="stage">
  <section class="ih">
    <span class="ih__orb ih__orb--1" aria-hidden="true"></span>
    <span class="ih__orb ih__orb--2" aria-hidden="true"></span>
    <span class="ih__orb ih__orb--3" aria-hidden="true"></span>
    <span class="ih__mark" aria-hidden="true"></span>
    <p class="ih__eyebrow">PORTFOLIO</p>
    <h1 class="ih__title">Những gì tôi đã dựng<br>trên web</h1>
    <p class="ih__sub">Xem case study dự án và thông tin liên hệ tại một màn hình.</p>
    <div class="ih__row">
      <a class="ih__cta" href="#">Xem dự án</a>
      <button class="ih__avail-btn" type="button" aria-pressed="false">
        <span class="ih__avail-ic" aria-hidden="true"></span>
        Nhận đề xuất dự án mới
      </button>
    </div>
  </section>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: $dur-quick;                            // 제안받기 버튼 전환
$easing: $ease-pop;
$color: $subject-blue;                            // CTA·아이콘 강조색

@include stage($stage-ink);

.ih {
  position: relative;
  box-sizing: border-box;                           // width 에 패딩을 포함 — 아니면 320px 에서 패딩만큼 넘친다(실측 2026-09-10)
  width: min(400px, 92vw);
  overflow: hidden;
  border-radius: $r-card;
  padding: $sp-3 $sp-5 $sp-2;
  text-align: center;
  isolation: isolate;
}

// ── 배경 원 세 개: 계속 떠다니는 장식(호버 아님, 무조건 재생) ──────────────
.ih__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(3px);
  z-index: -1;
  animation: ih-float-a 2s ease-in-out infinite;
}
.ih__orb--1 { width: 170px; height: 170px; left: -45px; top: -35px; background: radial-gradient(circle, $subject-blue, transparent 62%); }
.ih__orb--2 { width: 130px; height: 130px; right: -25px; top: 6px; background: radial-gradient(circle, $subject-cream, transparent 62%); opacity: .7; animation-name: ih-float-b; }
.ih__orb--3 { width: 150px; height: 150px; left: 28%; bottom: -70px; background: radial-gradient(circle, $subject-blue, transparent 62%); opacity: .95; animation-direction: reverse; }
@keyframes ih-float-a {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate($sp-10, -$sp-8) scale(1.5); }
}
@keyframes ih-float-b {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(-$sp-8, $sp-8) scale(.6); }
}

// ── 플레이스홀더 워드마크: 실제 로고가 아니라 도형 하나 ──────────────
.ih__mark {
  display: block;
  width: $sp-5; height: $sp-5;
  margin: 0 auto $sp-1;
  background: $color;
  border-radius: $r-xs;
  transform: rotate(45deg);
}

.ih__eyebrow {
  margin: 0 0 $sp-1;
  font-weight: 700; font-size: 10px; line-height: 1; font-family: inherit;
  letter-spacing: .14em;
  color: rgba(255, 247, 230, .6);
}
.ih__title {
  margin: 0 0 $sp-1;
  font-weight: 800; font-size: clamp(16px, 4.6vw, 19px); line-height: 1.14; font-family: inherit;
  color: $subject-cream;
}
.ih__sub {
  margin: 0 0 $sp-2;
  font-weight: 500; font-size: clamp(10px, 2.8vw, 11px); line-height: 1.4; font-family: inherit;
  color: rgba(255, 247, 230, .68);
}
.ih__row { display: flex; justify-content: center; align-items: center; gap: $sp-2; flex-wrap: wrap; }
.ih__cta {
  padding: $sp-2 $sp-5;
  border-radius: $r-control;
  background: $subject-blue-deep;
  color: $subject-cream;
  font-weight: 700; font-size: 12px; line-height: 1.4; font-family: inherit;
  text-decoration: none;
}
.ih__avail-btn {
  display: inline-flex; align-items: center; gap: $sp-1;
  padding: $sp-2 $sp-3;
  border-radius: $r-control;
  border: 1px solid rgba(255, 247, 230, .3);
  background: transparent;
  color: rgba(255, 247, 230, .82);
  font-weight: 600; font-size: 12px; line-height: 1.4; font-family: inherit;
  cursor: pointer;
  transition: background $duration $easing, border-color $duration $easing;
}
.ih__avail-ic {
  width: $sp-3; height: $sp-3;
  background: currentColor;
  border-radius: 50%;
  opacity: .5;
  transition: opacity $duration $easing, transform $duration $easing;
}
.ih__avail-btn[aria-pressed="true"] {
  background: rgba(255, 247, 230, .12);
  border-color: $subject-cream;
}
.ih__avail-btn[aria-pressed="true"] .ih__avail-ic {
  opacity: 1;
  color: $color;
  transform: scale(1.2);
}

// ── 반응형: 320×200 처럼 세로가 짧은 화면에선 장식을 줄인다(BD9) ──────────────
@media (max-width: 340px), (max-height: 220px) {
  .ih { padding: $sp-2 $sp-4; }
  .ih__mark { display: none; }
  .ih__eyebrow { display: none; }
  .ih__title { font-size: 14px; line-height: 1.15; margin-bottom: $sp-1; }
  .ih__sub { display: none; }
  .ih__row { gap: $sp-1; }
  .ih__cta, .ih__avail-btn { padding: 4px $sp-3; font-size: 10px; }
}

// ── 접근성 ──────────────────────────────────────────
@media (prefers-reduced-motion: reduce) {
  .ih__orb { animation: none !important; }
  .ih__avail-btn, .ih__avail-ic { transition: none; }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.ih {
  position: relative;
  box-sizing: border-box;
  width: min(400px, 92vw);
  overflow: hidden;
  border-radius: 16px;
  padding: 12px 20px 8px;
  text-align: center;
  isolation: isolate;
}

.ih__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(3px);
  z-index: -1;
  animation: ih-float-a 2s ease-in-out infinite;
}

.ih__orb--1 {
  width: 170px;
  height: 170px;
  left: -45px;
  top: -35px;
  background: radial-gradient(circle, #2f6df6, transparent 62%);
}

.ih__orb--2 {
  width: 130px;
  height: 130px;
  right: -25px;
  top: 6px;
  background: radial-gradient(circle, #fff7e6, transparent 62%);
  opacity: 0.7;
  animation-name: ih-float-b;
}

.ih__orb--3 {
  width: 150px;
  height: 150px;
  left: 28%;
  bottom: -70px;
  background: radial-gradient(circle, #2f6df6, transparent 62%);
  opacity: 0.95;
  animation-direction: reverse;
}

@keyframes ih-float-a {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(40px, -32px) scale(1.5);
  }
}
@keyframes ih-float-b {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-32px, 32px) scale(0.6);
  }
}
.ih__mark {
  display: block;
  width: 20px;
  height: 20px;
  margin: 0 auto 4px;
  background: #2f6df6;
  border-radius: 4px;
  transform: rotate(45deg);
}

.ih__eyebrow {
  margin: 0 0 4px;
  font-weight: 700;
  font-size: 10px;
  line-height: 1;
  font-family: inherit;
  letter-spacing: 0.14em;
  color: rgba(255, 247, 230, 0.6);
}

.ih__title {
  margin: 0 0 4px;
  font-weight: 800;
  font-size: clamp(16px, 4.6vw, 19px);
  line-height: 1.14;
  font-family: inherit;
  color: #fff7e6;
}

.ih__sub {
  margin: 0 0 8px;
  font-weight: 500;
  font-size: clamp(10px, 2.8vw, 11px);
  line-height: 1.4;
  font-family: inherit;
  color: rgba(255, 247, 230, 0.68);
}

.ih__row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.ih__cta {
  padding: 8px 20px;
  border-radius: 12px;
  background: #0a4fe8;
  color: #fff7e6;
  font-weight: 700;
  font-size: 12px;
  line-height: 1.4;
  font-family: inherit;
  text-decoration: none;
}

.ih__avail-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 247, 230, 0.3);
  background: transparent;
  color: rgba(255, 247, 230, 0.82);
  font-weight: 600;
  font-size: 12px;
  line-height: 1.4;
  font-family: inherit;
  cursor: pointer;
  transition: background 220ms cubic-bezier(0.2, 1.4, 0.4, 1), border-color 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.ih__avail-ic {
  width: 12px;
  height: 12px;
  background: currentColor;
  border-radius: 50%;
  opacity: 0.5;
  transition: opacity 220ms cubic-bezier(0.2, 1.4, 0.4, 1), transform 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.ih__avail-btn[aria-pressed=true] {
  background: rgba(255, 247, 230, 0.12);
  border-color: #fff7e6;
}

.ih__avail-btn[aria-pressed=true] .ih__avail-ic {
  opacity: 1;
  color: #2f6df6;
  transform: scale(1.2);
}

@media (max-width: 340px), (max-height: 220px) {
  .ih {
    padding: 8px 16px;
  }
  .ih__mark {
    display: none;
  }
  .ih__eyebrow {
    display: none;
  }
  .ih__title {
    font-size: 14px;
    line-height: 1.15;
    margin-bottom: 4px;
  }
  .ih__sub {
    display: none;
  }
  .ih__row {
    gap: 4px;
  }
  .ih__cta, .ih__avail-btn {
    padding: 4px 12px;
    font-size: 10px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ih__orb {
    animation: none !important;
  }
  .ih__avail-btn, .ih__avail-ic {
    transition: none;
  }
}

// 실제 동작: 클릭마다 "제안받기" 상태가 실제로 바뀐다(아이콘 채움 + aria-pressed).
var btn = document.querySelector('.ih__avail-btn');
btn.addEventListener('click', function () {
  var on = btn.getAttribute('aria-pressed') === 'true';
  btn.setAttribute('aria-pressed', String(!on));
});

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

export type ProjectIntroHeroProps = {
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function ProjectIntroHero({ duration = 220, easing = "cubic-bezier(.2,1.4,.4,1)", color = "#2f6df6" }: ProjectIntroHeroProps) {
  const [available, setAvailable] = useState(false);
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <section className={styles.ih} style={vars}>
      <span className={`${styles.orb} ${styles.orb1}`} aria-hidden="true" />
      <span className={`${styles.orb} ${styles.orb2}`} aria-hidden="true" />
      <span className={`${styles.orb} ${styles.orb3}`} aria-hidden="true" />
      <span className={styles.mark} aria-hidden="true" />
      <p className={styles.eyebrow}>PORTFOLIO</p>
      <h1 className={styles.title}>웹으로 만든 것들의<br />기록</h1>
      <p className={styles.sub}>프로젝트 사례와 연락처를 한 화면에서 확인하세요.</p>
      <div className={styles.row}>
        <a className={styles.cta} href="#">프로젝트 보기</a>
        <button
          type="button"
          className={styles.availBtn}
          aria-pressed={available}
          onClick={() => setAvailable((v) => !v)}
        >
          <span className={styles.availIc} aria-hidden="true" />
          새 프로젝트 제안받기
        </button>
      </div>
    </section>
  );
}