06Wood grain sliding panels

<main class="stage">
  <section class="wooddoors" aria-label="Wood grain sliding panels">
    <div class="wooddoors__frame">
      <div class="wooddoors__slot">
        <p class="wooddoors__slot-title">The second story</p>
        <p class="wooddoors__slot-desc">Bright content behind the wood</p>
      </div>
      <div class="wooddoors__leaf wooddoors__leaf--l" aria-hidden="true">
        <span class="wooddoors__knot"></span>
        <span class="wooddoors__handle"></span>
      </div>
      <div class="wooddoors__leaf wooddoors__leaf--r" aria-hidden="true">
        <span class="wooddoors__knot wooddoors__knot--low"></span>
        <span class="wooddoors__handle"></span>
      </div>
    </div>
  </section>
</main>

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

// 스큐어모픽 나무 — 세로 결 repeating-linear-gradient + 매듭 radial-gradient. 사진 없이 결이 흐른다
$wood-a:  #b57e46;   // 결 밝은 톤
$wood-b:  #a96f38;   // 결 중간
$wood-c:  #c08a4e;   // 결 가장 밝게
$wood-d:  #96622e;   // 결 어두운 톤
$wood-lo: #906a47;   // 패널 아래 그늘
$brass:   #ddd3ba;   // 놋쇠 손잡이

$duration: $dur-loop;   // 열리고 잠시 머물고 닫히는 한 주기
$easing: $ease-spring;  // 미닫이는 끝에서 살짝 튕긴다
$color: $wood-a;

@include stage($stage-yellow);

.wooddoors {
  display: grid;
  place-items: center;
}

// 틀 — 안쪽 내용을 감싸고 두 짝이 틀 밖으로 나가면 잘린다 (overflow)
.wooddoors__frame {
  position: relative;
  width: clamp(212px, 66vw, 300px);
  aspect-ratio: 16 / 10;
  border-radius: $r-card;
  overflow: hidden;
  background: #2d1c0d;
  box-shadow: 0 10px 16px rgba(23, 20, 26, .35), inset 0 0 0 4px #241608;
}

// 틀 안 밝은 슬롯 — 나무가 열려야 보이는 내용
.wooddoors__slot {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: $sp-1;
  padding: $sp-4;
  border-radius: $r-card;
  background: $subject-cream;
}
.wooddoors__slot-title {
  margin: 0;
  color: #574a38;
  font-weight: 800; font-size: clamp(13px, 3.4vw, 17px); line-height: 1.2;
  font-family: inherit;
}
.wooddoors__slot-desc {
  margin: 0;
  color: #7a6c56;
  font-weight: 500; font-size: clamp(10px, 2.6vw, 12px); line-height: 1.3;
  font-family: inherit;
}

// 나무 짝 — 세로 결 줄무늬가 짝과 함께 움직인다 (gradient 가 배경이라 결이 "흐르는" 게 아니라 짝이 통째로 이동)
.wooddoors__leaf {
  position: absolute;
  top: 0; bottom: 0;
  width: 50.5%;                       // 가운데 살짝 겹친다 — 닫았을 때 틈이 안 보인다
  background:
    radial-gradient(ellipse 14px 22px at 62% 30%, rgba(74, 44, 12, .55) 0 38%, rgba($wood-c, .5) 42% 52%, transparent 60%),
    repeating-linear-gradient(90deg,
      $wood-a 0 12px, $wood-b 12px 15px, $wood-c 15px 27px, $wood-d 27px 30px, $wood-a 30px 38px, $wood-lo 38px 41px);
  box-shadow: inset 0 2px 0 rgba(255, 230, 190, .3), inset 0 -4px 0 rgba(45, 25, 6, .55);
  animation: doorsOpenL $duration $easing infinite;
}
.wooddoors__leaf--l { left: 0; }
.wooddoors__leaf--r {
  right: 0;
  animation-name: doorsOpenR;
}

// 매듭(나이테)과 놋쇠 손잡이
.wooddoors__knot {
  position: absolute;
  top: 22%; left: 16%;
  width: 28px;
  height: 44px;
  border-radius: 50%;
  background: repeating-radial-gradient(ellipse at 50% 50%, rgba(74, 44, 12, .5) 0 2px, rgba($wood-c, .4) 2px 5px);
}
.wooddoors__knot--low { top: 48%; left: auto; right: 20%; }
.wooddoors__handle {
  position: absolute;
  top: calc(50% - 8px);
  width: 8px;
  height: 16px;
  border-radius: $r-pill;
  background: linear-gradient(90deg, #c9a24e, $brass 55%, #b09760);
  box-shadow: 0 1px 2px rgba(0, 0, 0, .5);
}
.wooddoors__leaf--l .wooddoors__handle { right: 12px; }
.wooddoors__leaf--r .wooddoors__handle { left: 12px; }

// 두 짝이 90% 넘게 열렸다 닫힌다 — 결 줄무늬가 짝을 타고 이동한다. 텔레포트 없다
@keyframes doorsOpenL {
  0%, 10%   { transform: translateX(0); }
  42%, 60%  { transform: translateX(-92%); }
  88%, 100% { transform: translateX(0); }
}
@keyframes doorsOpenR {
  0%, 10%   { transform: translateX(0); }
  42%, 60%  { transform: translateX(92%); }
  88%, 100% { transform: translateX(0); }
}

@media (max-width: 340px), (max-height: 220px) {
  .wooddoors__slot { padding: $sp-3; }
  .wooddoors__knot { width: 20px; height: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  .wooddoors__leaf { animation: none !important; transform: translateX(-92%); }
  .wooddoors__leaf--r { transform: translateX(92%); }
}

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);
}

.wooddoors {
  display: grid;
  place-items: center;
}

.wooddoors__frame {
  position: relative;
  width: clamp(212px, 66vw, 300px);
  aspect-ratio: 16/10;
  border-radius: 16px;
  overflow: hidden;
  background: #2d1c0d;
  box-shadow: 0 10px 16px rgba(23, 20, 26, 0.35), inset 0 0 0 4px #241608;
}

.wooddoors__slot {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 16px;
  border-radius: 16px;
  background: #fff7e6;
}

.wooddoors__slot-title {
  margin: 0;
  color: #574a38;
  font-weight: 800;
  font-size: clamp(13px, 3.4vw, 17px);
  line-height: 1.2;
  font-family: inherit;
}

.wooddoors__slot-desc {
  margin: 0;
  color: #7a6c56;
  font-weight: 500;
  font-size: clamp(10px, 2.6vw, 12px);
  line-height: 1.3;
  font-family: inherit;
}

.wooddoors__leaf {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50.5%;
  background: radial-gradient(ellipse 14px 22px at 62% 30%, rgba(74, 44, 12, 0.55) 0 38%, rgba(192, 138, 78, 0.5) 42% 52%, transparent 60%), repeating-linear-gradient(90deg, #b57e46 0 12px, #a96f38 12px 15px, #c08a4e 15px 27px, #96622e 27px 30px, #b57e46 30px 38px, #906a47 38px 41px);
  box-shadow: inset 0 2px 0 rgba(255, 230, 190, 0.3), inset 0 -4px 0 rgba(45, 25, 6, 0.55);
  animation: doorsOpenL 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.wooddoors__leaf--l {
  left: 0;
}

.wooddoors__leaf--r {
  right: 0;
  animation-name: doorsOpenR;
}

.wooddoors__knot {
  position: absolute;
  top: 22%;
  left: 16%;
  width: 28px;
  height: 44px;
  border-radius: 50%;
  background: repeating-radial-gradient(ellipse at 50% 50%, rgba(74, 44, 12, 0.5) 0 2px, rgba(192, 138, 78, 0.4) 2px 5px);
}

.wooddoors__knot--low {
  top: 48%;
  left: auto;
  right: 20%;
}

.wooddoors__handle {
  position: absolute;
  top: calc(50% - 8px);
  width: 8px;
  height: 16px;
  border-radius: 999px;
  background: linear-gradient(90deg, #c9a24e, #ddd3ba 55%, #b09760);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.wooddoors__leaf--l .wooddoors__handle {
  right: 12px;
}

.wooddoors__leaf--r .wooddoors__handle {
  left: 12px;
}

@keyframes doorsOpenL {
  0%, 10% {
    transform: translateX(0);
  }
  42%, 60% {
    transform: translateX(-92%);
  }
  88%, 100% {
    transform: translateX(0);
  }
}
@keyframes doorsOpenR {
  0%, 10% {
    transform: translateX(0);
  }
  42%, 60% {
    transform: translateX(92%);
  }
  88%, 100% {
    transform: translateX(0);
  }
}
@media (max-width: 340px), (max-height: 220px) {
  .wooddoors__slot {
    padding: 12px;
  }
  .wooddoors__knot {
    width: 20px;
    height: 32px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .wooddoors__leaf {
    animation: none !important;
    transform: translateX(-92%);
  }
  .wooddoors__leaf--r {
    transform: translateX(92%);
  }
}

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

export type WoodPanelDoorsProps = {
  title?: string;
  desc?: string;
  /** 스크린리더용 섹션 이름 (기본 "나무 결 미닫이 패널") */
  ariaLabel?: string;
  /** 한 주기(기본 2000ms) */
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function WoodPanelDoors({
  title = "두 번째 이야기",
  desc = "나무를 열면 밝은 내용",
  ariaLabel = "나무 결 미닫이 패널",
  duration = 2000,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#b57e46",
}: WoodPanelDoorsProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <section className={styles.wooddoors} style={vars} aria-label={ariaLabel}>
      <div className={styles.frame}>
        <div className={styles.slot}>
          <p className={styles.slotTitle}>{title}</p>
          <p className={styles.slotDesc}>{desc}</p>
        </div>
        <div className={`${styles.leaf} ${styles.leafL}`} aria-hidden="true">
          <span className={styles.knot} />
          <span className={styles.handle} />
        </div>
        <div className={`${styles.leaf} ${styles.leafR}`} aria-hidden="true">
          <span className={`${styles.knot} ${styles.knotLow}`} />
          <span className={styles.handle} />
        </div>
      </div>
    </section>
  );
}