/* ClipShot 랜딩 페이지 — 앱 브랜드 색상(App.css --ms-*)과 일치. 라이트/다크 자동. */
:root {
  --bg: #f7f7f8;
  --fg: #1f1f23;
  --fg-soft: #5c5c66;
  --surface: #ffffff;
  --surface-2: #f0f0f2;
  --border: #e5e7eb;
  --accent: #396cd8;
  --accent-fg: #ffffff;
  --accent-soft: rgba(57, 108, 216, 0.08);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 8px 24px rgba(0, 0, 0, 0.06);
  --radius: 14px;
  --maxw: 1080px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1f1f23;
    --fg: #f0f0f2;
    --fg-soft: #a5a5b0;
    --surface: #2a2a2f;
    --surface-2: #26262b;
    --border: #3a3a42;
    --accent: #5b8df2;
    --accent-soft: rgba(91, 141, 242, 0.14);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ── 헤더 ── */
header {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(180%) blur(12px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.nav-brand img { height: 26px; width: auto; display: block; }
.nav-right { display: flex; align-items: center; gap: 18px; font-size: 0.92rem; }
.nav-right a { color: var(--fg-soft); transition: color 0.15s; white-space: nowrap; }
.nav-right a:hover { color: var(--fg); }
.nav-right .nav-cta { background: var(--accent); color: var(--accent-fg); padding: 8px 16px; border-radius: 8px; font-weight: 600; }
.nav-right .nav-cta:hover { color: var(--accent-fg); box-shadow: var(--shadow); }
@media (max-width: 640px) { .nav-right { gap: 12px; } .nav-right a:not(.nav-cta):not(.lang-switch) { display: none; } }
.lang-switch { color: var(--accent) !important; font-weight: 600; }

/* ── 버튼 ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 24px; border-radius: 12px; font-size: 1rem; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; transition: transform 0.12s, box-shadow 0.15s, background 0.15s;
}
.btn-primary { background: var(--accent); color: var(--accent-fg); box-shadow: var(--shadow); }
.btn-primary:hover { transform: translateY(-1px); }
.btn-secondary { background: var(--surface); color: var(--fg); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-disabled { background: var(--surface-2); color: var(--fg-soft); cursor: not-allowed; border-color: var(--border); }
.btn .sub { font-size: 0.74rem; font-weight: 500; opacity: 0.85; }
.btn-col { flex-direction: column; align-items: center; gap: 2px; line-height: 1.25; }

/* ── 히어로 ── */
.hero { text-align: center; padding: 88px 0 64px; }
.hero-logo { width: 96px; height: 96px; margin: 0 auto 24px; display: block; filter: drop-shadow(0 8px 20px rgba(0,0,0,0.12)); }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; letter-spacing: -0.02em; line-height: 1.15; }
.hero h1 .accent { color: var(--accent); }
.hero p.lead { font-size: clamp(1.05rem, 2.4vw, 1.3rem); color: var(--fg-soft); margin: 18px auto 0; max-width: 620px; }
.hero .cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 36px; }
.hero .meta { margin-top: 20px; font-size: 0.88rem; color: var(--fg-soft); }
.hero .meta + .meta { margin-top: 6px; }
html.is-mobile .pc-only { display: none; }
.mobile-only { display: none; }
html.is-mobile .mobile-only {
  display: block;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  border-radius: 12px;
  padding: 10px 18px;
  font-weight: 600;
}

/* ── 섹션 ── */
section { padding: 56px 0; }
.section-title { text-align: center; font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; letter-spacing: -0.01em; }
.section-sub { text-align: center; color: var(--fg-soft); margin-top: 8px; }

/* ── 기능 그리드 ── */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 40px; }
@media (max-width: 860px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .features { grid-template-columns: 1fr; } }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 22px; transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--accent); }
.card .icon {
  width: 46px; height: 46px; border-radius: 12px; background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; margin-bottom: 16px;
}
.card .icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 1.12rem; font-weight: 700; }
.card p { color: var(--fg-soft); margin-top: 6px; font-size: 0.95rem; }
.card kbd {
  display: inline-block; margin-top: 10px; font-size: 0.78rem; font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 2px 7px; color: var(--fg-soft);
}

/* ── 다운로드 ── */
.download { background: var(--surface-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.download .cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }
.download .note { text-align: center; color: var(--fg-soft); font-size: 0.86rem; margin-top: 18px; }

/* ── 사용 시나리오 ── */
.usecases { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 30px 22px; margin-top: 40px; }
@media (max-width: 480px) { .usecases { grid-template-columns: 1fr; } }
.usecase { text-align: center; }
.usecase .uc-ico {
  width: 50px; height: 50px; border-radius: 14px; background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; margin: 0 auto 14px;
}
.usecase .uc-ico svg { width: 25px; height: 25px; }
.usecase h3 { font-size: 1.02rem; font-weight: 700; }
.usecase p { color: var(--fg-soft); margin-top: 6px; font-size: 0.9rem; }

/* ── 개인정보·로컬 ── */
#features { background: var(--surface-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.usecases-sec { background: var(--surface-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.trust { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; margin-top: 40px; }
.trust-item { text-align: center; padding: 8px 10px; }
.trust-ico {
  width: 54px; height: 54px; border-radius: 15px; background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; margin: 0 auto 14px;
}
.trust-ico svg { width: 27px; height: 27px; }
.trust-item h3 { font-size: 1.08rem; font-weight: 700; }
.trust-item p { color: var(--fg-soft); margin-top: 6px; font-size: 0.94rem; }

/* ── 시스템 요구사항 · macOS 안내 ── */
.sysreq { text-align: center; color: var(--fg-soft); font-size: 0.9rem; margin-top: 16px; }
.mac-tease {
  text-align: center; margin-top: 12px; font-size: 0.88rem; color: var(--fg-soft);
  display: inline-flex; align-items: center; gap: 7px;
}
.mac-tease .pill {
  background: var(--accent-soft); color: var(--accent); font-weight: 600;
  border-radius: 999px; padding: 2px 10px; font-size: 0.78rem;
}
.mac-tease-wrap { text-align: center; }
/* OS 분기 다운로드 */
[hidden] { display: none !important; }
.os-block { text-align: center; }
.os-switch {
  display: inline-flex; align-items: center; gap: 6px;
  margin: 24px auto 0; padding: 9px 18px;
  background: none; border: 1px solid var(--border); border-radius: 999px;
  color: var(--fg-soft); font: inherit; font-size: 0.86rem; font-weight: 500;
  cursor: pointer; transition: border-color .15s, color .15s;
}
.os-switch:hover { border-color: var(--accent); color: var(--accent); }
.beta-tag {
  display: inline-block; vertical-align: middle; margin-left: 6px;
  font-size: 0.6rem; font-weight: 700; letter-spacing: 0.05em;
  padding: 2px 7px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.25); color: #fff;
}
/* macOS 베타 설치 안내 (터미널) */
.mac-guide { max-width: 680px; margin: 16px auto 0; scroll-margin-top: 80px; }
.meta a { color: var(--accent); text-decoration: underline; font-weight: 600; }
.mac-guide .note { margin-top: 12px; }
.mac-steps {
  text-align: left; margin: 8px 0 0; padding-left: 24px;
  font-size: 0.9rem; color: var(--fg-soft); line-height: 1.7;
}
.mac-steps li { margin: 3px 0; }
.cmd {
  display: block; margin: 12px 0; padding: 11px 14px;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 0.82rem;
  text-align: left; color: var(--fg); overflow-x: auto; white-space: nowrap;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  -webkit-user-select: all; user-select: all;
}
.cmd-row { display: flex; align-items: stretch; gap: 8px; max-width: 680px; margin: 12px auto; }
.cmd-row .cmd { flex: 1; min-width: 0; margin: 0; }
.cmd-copy {
  flex-shrink: 0; padding: 0 16px; border-radius: 8px; cursor: pointer;
  font: inherit; font-size: 0.82rem; font-weight: 600; white-space: nowrap;
  background: var(--accent); color: var(--accent-fg); border: 1px solid var(--accent);
  transition: filter .12s, background .12s, color .12s;
}
.cmd-copy:hover { filter: brightness(1.06); }
.cmd-copy.copied { background: var(--surface); color: var(--accent); border-color: var(--accent); }
code:not(.cmd) {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 0.86em;
  background: var(--surface); border: 1px solid var(--border); border-radius: 5px; padding: 1px 5px;
}
.mac-steps kbd {
  font-family: ui-monospace, Consolas, monospace; font-size: 0.82em;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 5px; padding: 1px 5px;
}
.os-note {
  max-width: 560px; margin: 18px auto 0; text-align: center; font-size: 0.9rem;
  background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent);
  border-radius: 10px; padding: 10px 16px;
}

/* ── 문서 페이지(개인정보 처리방침 등) ── */
.doc { max-width: 760px; margin: 0 auto; padding: 56px 24px 80px; }
.doc h1 { font-size: clamp(1.7rem, 4vw, 2.2rem); font-weight: 800; letter-spacing: -0.01em; }
.doc .updated { color: var(--fg-soft); font-size: 0.9rem; margin-top: 6px; }
.doc .intro { color: var(--fg-soft); margin-top: 18px; font-size: 1rem; }
.doc h2 { font-size: 1.2rem; font-weight: 700; margin: 36px 0 10px; }
.doc h3 { font-size: 1.02rem; font-weight: 700; margin: 22px 0 6px; }
.doc p, .doc li { color: var(--fg-soft); font-size: 0.96rem; }
.doc p { margin-top: 8px; }
.doc ul { padding-left: 22px; margin: 10px 0; }
.doc li { margin: 6px 0; }
.doc a { color: var(--accent); }
.doc a:hover { text-decoration: underline; }
.doc strong { color: var(--fg); font-weight: 600; }
.doc code {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 0.86em;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 1px 6px;
}
.doc .callout {
  background: var(--accent-soft); border: 1px solid var(--accent); border-radius: var(--radius);
  padding: 16px 18px; margin: 16px 0;
}
.doc .callout p { margin-top: 0; }
.doc .callout p + p { margin-top: 8px; }
.doc .callout .en { font-style: italic; font-size: 0.88rem; }

/* ── 푸터 ── */
footer { padding: 40px 0; color: var(--fg-soft); font-size: 0.88rem; }
.foot { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.foot a { color: var(--fg-soft); }
.foot a:hover { color: var(--accent); }
.foot .dot { opacity: 0.4; margin: 0 8px; }