/* ============================================================
   STREAM — 스트리머 포털 공통 디자인 시스템 (style.css)
   다크 + 트위치 퍼플 / 모던 / 모바일 반응형 / 한국어 UI
   모든 페이지(index/signup/download/guide)에서 이 파일 하나만 링크.
   ============================================================ */

/* ---------- 1. 디자인 토큰 (CSS 변수) ---------- */
:root {
  color-scheme: dark;

  /* 배경 단계 */
  --bg:        #0e0e10;   /* 페이지 바탕 */
  --bg-elev:   #18181b;   /* 카드/패널 */
  --bg-elev-2: #1f1f23;   /* 입력/호버 면 */
  --bg-inset:  #0a0a0c;   /* 코드블록 등 가장 깊은 면 */

  /* 브랜드 퍼플 */
  --purple:        #efeff1;
  --purple-hover:  #ffffff;
  --purple-press:  #c9c9d0;
  --purple-soft:   rgba(255, 255, 255, .10);
  --purple-ring:   rgba(255, 255, 255, .28);

  /* 텍스트 */
  --text:        #efeff1;
  --text-muted:  #adadb8;
  --text-faint:  #7c7c89;
  --text-on-accent: #0e0e10;

  /* 보더/라인 */
  --border:       #2a2a31;
  --border-soft:  #232329;
  --border-strong:#3a3a44;

  /* 상태 색 */
  --green:  #00c389;
  --green-soft: rgba(0, 195, 137, .14);
  --red:    #eb0400;
  --red-soft: rgba(235, 4, 0, .14);
  --amber:  #ffb020;
  --amber-soft: rgba(255, 176, 32, .14);
  --blue:   #3ea6ff;

  /* 라운드 */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-xl: 24px;
  --r-pill: 999px;

  /* 그림자 */
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 8px 24px rgba(0,0,0,.45);
  --shadow-lg: 0 18px 50px rgba(0,0,0,.55);
  --shadow-purple: 0 8px 24px rgba(0,0,0,.45);

  /* 간격 (넉넉한 여백) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 72px;
  --space-9: 112px;

  /* 레이아웃 */
  --container: 1080px;
  --nav-h: 64px;

  /* 모션 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --t-fast: .14s;
  --t: .22s;

  font-synthesis: none;
}

/* ---------- 2. 리셋 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto,
               "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, video { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  margin: 0 0 var(--space-4);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.1rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }

p  { margin: 0 0 var(--space-4); color: var(--text-muted); }

a {
  color: var(--purple-hover);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}
a:hover { color: var(--text); }

ul, ol { color: var(--text-muted); }
strong { color: var(--text); font-weight: 700; }
small  { color: var(--text-faint); font-size: .85em; }
hr {
  border: 0;
  border-top: 1px solid var(--border-soft);
  margin: var(--space-6) 0;
}

::selection { background: var(--purple-ring); color: #fff; }

:focus-visible {
  outline: 2px solid var(--purple-hover);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

/* ---------- 3. 레이아웃 (.container / .section) ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.container--narrow { max-width: 680px; }
.container--wide   { max-width: 1240px; }

.section {
  padding-block: var(--space-8);
}
.section--tight { padding-block: var(--space-6); }
.section--alt   { background: var(--bg-elev); border-block: 1px solid var(--border-soft); }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-7);
}
.section-head h2 { margin-bottom: var(--space-3); }
.section-head p  { font-size: 1.05rem; margin: 0; }

.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--purple-hover);
  margin-bottom: var(--space-3);
}

/* 유틸리티 */
.text-center { text-align: center; }
.text-muted  { color: var(--text-muted); }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.stack > * + * { margin-top: var(--space-4); }
.row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}
.row--center { justify-content: center; }

/* ---------- 4. 네비게이션 / 상단바 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 14, 16, .82);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--border-soft);
}
.nav__inner {
  max-width: var(--container);
  margin-inline: auto;
  min-height: var(--nav-h);
  padding-inline: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

/* 로고 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: .04em;
  color: var(--text);
  flex-shrink: 0;
}
.brand:hover { color: var(--text); }
.brand__mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--purple), var(--purple-press));
  box-shadow: var(--shadow-purple);
  color: #0e0e10;
  font-size: 16px;
}
.brand__name { color: var(--purple); }
.brand__name b { color: var(--text); font-weight: 900; }

/* 링크 묶음 */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
}
.nav-link {
  position: relative;
  padding: 8px 14px;
  border-radius: var(--r-sm);
  font-size: .95rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--t-fast) var(--ease),
              background var(--t-fast) var(--ease);
}
.nav-link:hover {
  color: var(--text);
  background: var(--bg-elev-2);
}
/* 현재 페이지 강조: <a class="nav-link" aria-current="page"> 또는 .is-active */
.nav-link.is-active,
.nav-link[aria-current="page"] {
  color: var(--text);
  background: var(--purple-soft);
}
.nav-link.is-active::after,
.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--purple);
}
.nav__cta { margin-left: var(--space-2); }

/* 햄버거 (모바일 토글) — CSS-only, 체크박스 해킹 */
.nav__toggle { display: none; }
.nav__burger {
  display: none;
  margin-left: auto;
  width: 42px; height: 42px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--bg-elev);
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav__burger:hover { background: var(--bg-elev-2); }
.nav__burger span,
.nav__burger span::before,
.nav__burger span::after {
  content: "";
  display: block;
  width: 18px; height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
}
.nav__burger span::before { transform: translateY(-6px); }
.nav__burger span::after  { transform: translateY(4px); }

/* ---------- 5. 버튼 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  font-family: inherit;
  font-size: .95rem;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  transition: transform var(--t-fast) var(--ease),
              background var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: .5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--purple);
  color: var(--text-on-accent);
  box-shadow: var(--shadow-purple);
}
.btn-primary:hover { background: var(--purple-hover); color: #0e0e10; }
.btn-primary:active { background: var(--purple-press); }

.btn-secondary {
  background: var(--bg-elev-2);
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { background: #2a2a31; border-color: var(--border-strong); color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--bg-elev-2); color: var(--text); }

.btn-lg {
  padding: 16px 30px;
  font-size: 1.05rem;
  border-radius: var(--r-lg);
}
.btn-sm {
  padding: 8px 14px;
  font-size: .85rem;
  border-radius: var(--r-sm);
}
.btn-block { display: flex; width: 100%; }

/* ---------- 6. 카드 ---------- */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: transform var(--t) var(--ease),
              border-color var(--t) var(--ease),
              box-shadow var(--t) var(--ease),
              background var(--t) var(--ease);
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}
.card__icon {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: var(--r-md);
  background: var(--purple-soft);
  color: var(--purple-hover);
  font-size: 22px;
  margin-bottom: var(--space-4);
}
.card h3 { margin-bottom: var(--space-2); }
.card p:last-child { margin-bottom: 0; }

/* 링크형 카드(통째로 클릭) */
a.card { color: inherit; display: block; }
a.card:hover { color: inherit; }

/* 카드 그리드 — 반응형 자동 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-5);
}
.card-grid--2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

/* ---------- 7. 히어로 ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(64px, 12vw, 132px);
  text-align: center;
}
.hero::before {            /* 퍼플 글로우 */
  content: "";
  position: absolute;
  inset: -40% 0 auto 0;
  height: 560px;
  background:
    radial-gradient(620px 300px at 50% 0%, var(--purple-soft), transparent 70%);
  pointer-events: none;
}
.hero__inner { position: relative; max-width: 760px; margin-inline: auto; }
.hero-title {
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: var(--space-4);
}
.hero-title .accent {
  background: linear-gradient(120deg, var(--purple-hover), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-6);
}
.hero__actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- 8. 폼 ---------- */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.field > label {
  font-size: .92rem;
  font-weight: 700;
  color: var(--text);
}
.field .hint {
  font-size: .82rem;
  color: var(--text-faint);
}
.field .req { color: var(--purple-hover); margin-left: 2px; }

.input,
.textarea,
.select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.4;
  transition: border-color var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease),
              background var(--t-fast) var(--ease);
}
.input::placeholder,
.textarea::placeholder { color: var(--text-faint); }
.input:hover,
.textarea:hover,
.select:hover { border-color: var(--border-strong); }
.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--purple);
  box-shadow: 0 0 0 3px var(--purple-ring);
  background: var(--bg-elev);
}
.textarea { min-height: 120px; resize: vertical; }

/* 검증 상태 */
.field.is-invalid .input,
.field.is-invalid .textarea { border-color: var(--red); }
.field.is-invalid .input:focus,
.field.is-invalid .textarea:focus { box-shadow: 0 0 0 3px var(--red-soft); }

/* 폼 메시지 박스 */
.form-error,
.form-success {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--r-md);
  font-size: .92rem;
  font-weight: 600;
  border: 1px solid transparent;
}
.form-error {
  background: var(--red-soft);
  border-color: rgba(235, 4, 0, .4);
  color: #ff8f8c;
}
.form-success {
  background: var(--green-soft);
  border-color: rgba(0, 195, 137, .4);
  color: #4ee3b5;
}
.form-error::before  { content: "!"; font-weight: 900; }
.form-success::before{ content: "\2713"; font-weight: 900; }
/* 인라인 필드 에러(작은 빨간 글씨) */
.field .field-error {
  font-size: .82rem;
  font-weight: 600;
  color: #ff8f8c;
}
[hidden] { display: none !important; }

/* ---------- 9. 배지 / 칩 ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .01em;
  background: var(--bg-elev-2);
  color: var(--text-muted);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.badge-purple { background: var(--purple-soft); color: var(--purple-hover); border-color: var(--purple-ring); }
.badge-green  { background: var(--green-soft);  color: #4ee3b5; border-color: rgba(0,195,137,.4); }
.badge-amber  { background: var(--amber-soft);  color: #ffc861; border-color: rgba(255,176,32,.4); }
.badge-red    { background: var(--red-soft);    color: #ff8f8c; border-color: rgba(235,4,0,.4); }

/* LIVE 표시(점 + 펄스) — 플레이어와 톤 통일 */
.badge-live { background: var(--red-soft); color: #ff8f8c; border-color: rgba(235,4,0,.4); }
.badge-live .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 0 rgba(235,4,0,.6);
  animation: live-pulse 1.6s infinite;
}
@keyframes live-pulse { 70% { box-shadow: 0 0 0 7px rgba(235,4,0,0); } }

/* ---------- 10. 스텝(번호 매겨진 단계) ---------- */
.steps {
  list-style: none;
  counter-reset: step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
}
.steps > li {
  counter-increment: step;
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  align-items: start;
  padding: var(--space-5);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  color: var(--text-muted);
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.steps > li:hover { border-color: var(--border-strong); }
.steps > li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--purple), var(--purple-press));
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  box-shadow: var(--shadow-purple);
}
.steps > li > * { margin: 0; }
.steps .step-title {
  display: block;
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: var(--space-1);
}

/* ---------- 11. FAQ ---------- */
.faq {
  display: grid;
  gap: var(--space-3);
  max-width: 760px;
  margin-inline: auto;
}
.faq details {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color var(--t) var(--ease);
}
.faq details[open] { border-color: var(--border-strong); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: var(--space-4) var(--space-5);
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--purple-hover);
  transition: transform var(--t) var(--ease);
  line-height: 1;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq summary:hover { color: var(--purple-hover); }
.faq .faq__body {
  padding: 0 var(--space-5) var(--space-5);
  color: var(--text-muted);
}
.faq .faq__body > :last-child { margin-bottom: 0; }

/* ---------- 12. 코드블록 / 주의박스 ---------- */
code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: .9em;
  background: var(--bg-inset);
  border: 1px solid var(--border-soft);
  padding: 2px 7px;
  border-radius: 6px;
  color: #e6d7ff;
}
pre {
  margin: 0 0 var(--space-4);
  padding: var(--space-5);
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}
pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: #d7d3e0;
}

.note {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--purple-soft);
  border: 1px solid var(--purple-ring);
  border-left-width: 4px;
  border-radius: var(--r-md);
  color: var(--text);
  margin: 0 0 var(--space-4);
}
.note::before {
  content: "i";
  flex-shrink: 0;
  width: 22px; height: 22px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--purple);
  color: #fff;
  font-weight: 800;
  font-style: italic;
  font-size: .85rem;
}
.note p:last-child { margin-bottom: 0; }
.note-warn {
  background: var(--amber-soft);
  border-color: rgba(255, 176, 32, .5);
}
.note-warn::before {
  content: "!";
  background: var(--amber);
  color: #1a1300;
  font-style: normal;
}
.note .note__title { color: var(--text); font-weight: 800; }

/* ---------- 13. 푸터 ---------- */
.footer {
  margin-top: var(--space-8);
  border-top: 1px solid var(--border-soft);
  background: var(--bg-elev);
  color: var(--text-faint);
}
.footer__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: var(--space-7) var(--space-5);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  color: var(--text);
}
.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer__links a { color: var(--text-muted); font-size: .92rem; font-weight: 600; }
.footer__links a:hover { color: var(--text); }
.footer__copy {
  width: 100%;
  border-top: 1px solid var(--border-soft);
  padding-top: var(--space-4);
  font-size: .82rem;
  color: var(--text-faint);
}

/* ============================================================
   14. 모바일 반응형 — 네비 접힘 / 세로 정렬
   ============================================================ */
@media (max-width: 820px) {
  .container { padding-inline: var(--space-4); }
  .section { padding-block: var(--space-7); }

  /* 네비: 햄버거 노출, 링크는 토글로 펼치는 세로 패널 */
  .nav__burger { display: inline-flex; }
  .nav__links {
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin: 0;
    padding: var(--space-3) var(--space-4) var(--space-5);
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);

    /* 기본 접힘 */
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: max-height var(--t) var(--ease), opacity var(--t) var(--ease);
  }
  /* 체크박스 체크 시 펼침: <input class="nav__toggle"> ~ ... ~ .nav__links */
  .nav__toggle:checked ~ .nav__inner .nav__links,
  .nav__inner:has(.nav__toggle:checked) .nav__links {
    max-height: 480px;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .nav-link {
    padding: 12px 14px;
    border-radius: var(--r-md);
    font-size: 1rem;
  }
  .nav-link.is-active::after,
  .nav-link[aria-current="page"]::after { display: none; }
  .nav__cta { margin: var(--space-2) 0 0; }
  .nav__cta .btn { width: 100%; }

  /* 버거 → X 변형 */
  .nav__inner:has(.nav__toggle:checked) .nav__burger span { background: transparent; }
  .nav__inner:has(.nav__toggle:checked) .nav__burger span::before { transform: translateY(0) rotate(45deg); }
  .nav__inner:has(.nav__toggle:checked) .nav__burger span::after  { transform: translateY(-2px) rotate(-45deg); }

  /* 히어로 액션 풀폭 */
  .hero__actions .btn { width: 100%; }

  /* 푸터 세로 정렬 */
  .footer__inner { flex-direction: column; align-items: flex-start; }

  /* 카드 그리드 1열 */
  .card-grid, .card-grid--2 { grid-template-columns: 1fr; }
}

/* :has() 미지원 폴백 — 그냥 항상 펼쳐 보이도록 (접근성 우선) */
@supports not (selector(:has(*))) {
  @media (max-width: 820px) {
    .nav__burger { display: none; }
    .nav__links {
      position: static; max-height: none; opacity: 1;
      visibility: visible; pointer-events: auto; box-shadow: none;
      background: transparent; border: 0; padding: var(--space-2) 0 var(--space-4);
    }
  }
}

@media (max-width: 460px) {
  .card, .steps > li { padding: var(--space-4); }
  .hero { padding-block: var(--space-8); }
}

/* 모션 최소화 선호 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}