05Đẩy nội dung

<main class="stage is-demo">
  <div class="layout">
    <nav class="drawer" aria-label="Điều hướng bên" aria-hidden="true">
      <a class="drawer__link" href="#" tabindex="-1">Bảng điều khiển</a>
      <a class="drawer__link" href="#" tabindex="-1">Báo cáo</a>
      <a class="drawer__link" href="#" tabindex="-1">Thiết lập</a>
    </nav>
    <div class="content">
      <button class="trigger" type="button" aria-expanded="false">Mở sidebar</button>
      <p class="content__line">Vùng nội dung dịch sang bên mà không cần lớp phủ.</p>
    </div>
  </div>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: $dur-enter;      // 600ms — 사이드바·콘텐츠가 함께 이동하는 시간
$easing: $ease-spring;
$color: $subject-blue;      // 링크 hover 강조색

// ── 데모 무대 ───────────────────────────────────────────
@include stage($stage-ink);

.stage { position: relative; }

.layout {
  position: relative;
  overflow: hidden;
  width: min(88vw, 320px);
  height: min(50vw, 150px);
  border-radius: $r-card;
  background: $stage-paper;
}

// 드로어는 콘텐츠 밑에 고정, 처음엔 왼쪽 밖으로 밀려 있다
.drawer {
  position: absolute; inset: 0 auto 0 0;
  width: 40%;
  box-sizing: border-box;
  display: flex; flex-direction: column; gap: $sp-1;
  padding: $sp-4 $sp-2;
  background: $stage-ink; color: $stage-paper;
  transform: translateX(-100%);
  transition: transform $duration $easing;
  z-index: 1;
}
.drawer__link {
  padding: $sp-1;
  border-radius: $r-xs;
  color: $stage-paper; text-decoration: none; font-weight: 500; font-size: 12px; line-height: 1; font-family: inherit;
  &:hover, &:focus-visible { background: rgba($stage-paper, .16); color: $color; }
}

// 콘텐츠는 항상 레이아웃 전체 폭 — 오른쪽으로 밀려 드로어를 드러낸다(오버레이 없음)
.content {
  position: relative;
  height: 100%;
  box-sizing: border-box;
  display: flex; flex-direction: column; gap: $sp-2; justify-content: center;
  padding: $sp-4;
  background: $stage-paper; color: $stage-ink;
  transform: translateX(0);
  transition: transform $duration $easing;
  z-index: 2;
}
.content__line { margin: 0; font-size: clamp(10px, 3vmin, 12px); color: rgba($stage-ink, .65); }

.trigger {
  align-self: flex-start;
  border: 0; border-radius: $r-pill;
  padding: $sp-2 $sp-4;
  font-weight: 600;
  font-size: clamp(11px, 3.4vmin, 13px);
  line-height: 1;
  font-family: inherit;
  color: $stage-paper; background: $stage-ink;
  cursor: pointer; -webkit-tap-highlight-color: transparent;
}

.stage.is-open .drawer  { transform: translateX(0); }
.stage.is-open .content { transform: translateX(40%); }

// 데모 루프: 닫힘 → 밀려남 → 닫힘 순으로 2초에 한 바퀴
.stage.is-demo .drawer  { animation: drawer-loop $dur-loop $easing infinite; }
.stage.is-demo .content { animation: content-loop $dur-loop $easing infinite; }

@keyframes drawer-loop {
  0%, 100% { transform: translateX(-100%); }
  15%, 70% { transform: translateX(0); }
  85%      { transform: translateX(-100%); }
}
@keyframes content-loop {
  0%, 100% { transform: translateX(0); }
  15%, 70% { transform: translateX(40%); }
  85%      { transform: translateX(0); }
}

@media (prefers-reduced-motion: reduce) {
  .stage.is-demo .drawer, .stage.is-demo .content { animation: none; }
  .drawer, .content { transition-duration: 1ms; }
}

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);
}

.stage {
  position: relative;
}

.layout {
  position: relative;
  overflow: hidden;
  width: min(88vw, 320px);
  height: min(50vw, 150px);
  border-radius: 16px;
  background: #ffffff;
}

.drawer {
  position: absolute;
  inset: 0 auto 0 0;
  width: 40%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 8px;
  background: #17141a;
  color: #ffffff;
  transform: translateX(-100%);
  transition: transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
  z-index: 1;
}

.drawer__link {
  padding: 4px;
  border-radius: 4px;
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  font-size: 12px;
  line-height: 1;
  font-family: inherit;
}
.drawer__link:hover, .drawer__link:focus-visible {
  background: rgba(255, 255, 255, 0.16);
  color: #2f6df6;
}

.content {
  position: relative;
  height: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
  padding: 16px;
  background: #ffffff;
  color: #17141a;
  transform: translateX(0);
  transition: transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
  z-index: 2;
}

.content__line {
  margin: 0;
  font-size: clamp(10px, 3vmin, 12px);
  color: rgba(23, 20, 26, 0.65);
}

.trigger {
  align-self: flex-start;
  border: 0;
  border-radius: 999px;
  padding: 8px 16px;
  font-weight: 600;
  font-size: clamp(11px, 3.4vmin, 13px);
  line-height: 1;
  font-family: inherit;
  color: #ffffff;
  background: #17141a;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.stage.is-open .drawer {
  transform: translateX(0);
}

.stage.is-open .content {
  transform: translateX(40%);
}

.stage.is-demo .drawer {
  animation: drawer-loop 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.stage.is-demo .content {
  animation: content-loop 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes drawer-loop {
  0%, 100% {
    transform: translateX(-100%);
  }
  15%, 70% {
    transform: translateX(0);
  }
  85% {
    transform: translateX(-100%);
  }
}
@keyframes content-loop {
  0%, 100% {
    transform: translateX(0);
  }
  15%, 70% {
    transform: translateX(40%);
  }
  85% {
    transform: translateX(0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .stage.is-demo .drawer, .stage.is-demo .content {
    animation: none;
  }
  .drawer, .content {
    transition-duration: 1ms;
  }
}

// 모달이 아니라 상시 내비게이션이라 inert 대신 aria-hidden·tabindex 로만 여닫힘을 알린다.
(function () {
  var stage = document.querySelector('.stage');
  var trigger = document.querySelector('.trigger');
  var drawer = document.querySelector('.drawer');
  var links = drawer.querySelectorAll('a');
  function set(open) {
    stage.classList.remove('is-demo');
    stage.classList.toggle('is-open', open);
    trigger.setAttribute('aria-expanded', String(open));
    drawer.setAttribute('aria-hidden', String(!open));
    links.forEach(function (a) { a.tabIndex = open ? 0 : -1; });
  }
  trigger.addEventListener('click', function () { set(!stage.classList.contains('is-open')); });
  document.addEventListener('keydown', function (e) {
    if (e.key === 'Escape' && stage.classList.contains('is-open')) { set(false); trigger.focus({ preventScroll: true }); }
  });
})();

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

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

export default function PushContentDrawer({
  duration = 600,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#2f6df6",
}: PushContentDrawerProps) {
  const [open, setOpen] = useState(false);

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

  return (
    <div className={styles.stage} style={vars}>
      <div className={styles.layout}>
        <nav className={styles.drawer} data-open={open} aria-label="사이드 내비게이션" aria-hidden={!open}>
          <a className={styles.link} href="#" tabIndex={open ? 0 : -1}>대시보드</a>
          <a className={styles.link} href="#" tabIndex={open ? 0 : -1}>보고서</a>
          <a className={styles.link} href="#" tabIndex={open ? 0 : -1}>설정</a>
        </nav>
        <div className={styles.content} data-open={open}>
          <button className={styles.trigger} type="button" aria-expanded={open} onClick={() => setOpen((v) => !v)}>
            사이드바 열기
          </button>
          <p className={styles.line}>본문 영역은 오버레이 없이 옆으로 자리를 내준다.</p>
        </div>
      </div>
    </div>
  );
}