/* 효도방패 랜딩 — 절제된 밝은 톤: 넓은 여백, 큰 제목, 중립 회색, 파란 강조 하나. */
:root {
  --bg: #ffffff; --bg-alt: #f5f5f7; --card: #ffffff; --card-alt: #f5f5f7;
  --ink: #1d1d1f; --ink-2: #6e6e73; --ink-3: #86868b; --line: #d2d2d7;
  --brand: #0071e3; --brand-hover: #0077ed; --danger: #d70015; --ok: #248a3d;
  --dark: #1d1d1f; --dark-card: #2a2a2d;
  --radius: 24px; --shadow: 0 4px 24px rgba(0, 0, 0, .06);
  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Apple SD Gothic Neo",
    "Noto Sans KR", "Malgun Gothic", system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #000000; --bg-alt: #101012; --card: #1d1d1f; --card-alt: #1d1d1f;
    --ink: #f5f5f7; --ink-2: #a1a1a6; --ink-3: #86868b; --line: #424245;
    --brand: #2997ff; --brand-hover: #47a6ff; --danger: #ff453a; --ok: #30d158;
    --dark: #101012; --dark-card: #1d1d1f; --shadow: none; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.6 var(--font);
  letter-spacing: -.01em; word-break: keep-all; overflow-wrap: anywhere;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -.035em; line-height: 1.15; }
h1 { font-size: clamp(2.5rem, 7vw, 4.5rem); }
h1 em { font-style: normal; color: var(--brand); }
h2 { font-size: clamp(1.9rem, 4.6vw, 3rem); }
h3 { font-size: 1.25rem; letter-spacing: -.02em; line-height: 1.3; font-weight: 600; }
p { margin: 0; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
b, strong { font-weight: 600; }
.wrap { width: min(1024px, 100% - 44px); margin-inline: auto; }
.narrow { width: min(720px, 100% - 44px); }
.center { text-align: center; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 8px; top: 8px; background: var(--card); color: var(--ink); padding: 8px 14px; z-index: 100; border-radius: 10px; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--brand) 55%, transparent); outline-offset: 3px; border-radius: 6px; }

/* 상단 바 */
.site-header { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 78%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 50%, transparent); }
.bar { display: flex; align-items: center; justify-content: space-between; height: 52px; gap: 12px; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 1.05rem; color: var(--ink); letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand svg { width: 22px; height: 22px; color: var(--brand); }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { color: var(--ink); font-size: .8rem; opacity: .82; }
.nav a:hover { opacity: 1; text-decoration: none; }
.nav .nav-cta { opacity: 1; color: #fff; background: var(--brand); padding: 6px 14px; border-radius: 980px; }
@media (max-width: 760px) { .nav a:not(.nav-cta) { display: none; } }

/* 버튼 */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 26px; border-radius: 980px;
  font: 500 1.06rem/1 var(--font); letter-spacing: -.01em; border: 1px solid transparent; cursor: pointer; transition: background .2s; }
.btn:hover { text-decoration: none; }
.btn.primary { background: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-hover); }
.btn.ghost { color: var(--brand); border-color: var(--brand); }
.btn.ghost:hover { background: color-mix(in srgb, var(--brand) 8%, transparent); }
.btn.wide { width: 100%; }
.btn[aria-disabled="true"] { background: var(--card-alt); color: var(--ink-3); cursor: default; }

/* 히어로 */
.hero { background: var(--bg-alt); padding: 88px 0 0; text-align: center; overflow: hidden; }
.hero-grid { display: grid; gap: 56px; justify-items: center; }
.eyebrow { font-size: 1.05rem; font-weight: 600; color: var(--brand); margin-bottom: 14px; letter-spacing: -.01em; }
.lead { font-size: clamp(1.15rem, 2.4vw, 1.5rem); line-height: 1.45; color: var(--ink-2); margin: 22px auto 30px; max-width: 26em; letter-spacing: -.02em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.fine { font-size: .8rem; color: var(--ink-3); margin-top: 18px; }

.phone-stage { display: grid; justify-items: center; gap: 0; position: relative; }
.phone { width: min(310px, 76vw); aspect-ratio: 9 / 17; background: #1d1d1f; border-radius: 46px 46px 0 0; padding: 11px 11px 0;
  box-shadow: 0 40px 80px rgba(0, 0, 0, .18); position: relative; }
.phone-notch { position: absolute; top: 22px; left: 50%; width: 84px; height: 24px; margin-left: -42px; border-radius: 20px; background: #1d1d1f; z-index: 2; }
.overlay-demo { height: 100%; border-radius: 36px 36px 0 0; background: #b3261e; color: #fff; text-align: center; padding: 64px 18px 20px;
  display: flex; flex-direction: column; align-items: center; }
.od-title { font-size: 1.55rem; font-weight: 700; letter-spacing: -.03em; }
.od-q { font-weight: 600; margin-top: 12px; line-height: 1.4; font-size: .98rem; }
.od-count { font-size: 4.2rem; font-weight: 700; line-height: 1; margin-top: 18px; font-variant-numeric: tabular-nums; letter-spacing: -.04em; }
.od-sub { font-size: .78rem; opacity: .85; margin-bottom: auto; }
.od-btn { display: block; width: 100%; border-radius: 14px; padding: 12px 8px; font-weight: 600; font-size: .9rem; margin-top: 8px; }
.od-btn.light { background: #fff; color: #b3261e; }
.od-btn.dark { background: rgba(0, 0, 0, .35); color: #fff; }
.push-card { position: absolute; top: 34%; right: calc(50% - min(310px, 76vw) / 2 - 190px); width: 270px; text-align: left;
  background: color-mix(in srgb, var(--card) 86%, transparent); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  color: var(--ink); border-radius: 20px; padding: 14px 16px; box-shadow: 0 12px 40px rgba(0, 0, 0, .16);
  display: grid; gap: 4px; font-size: .8rem; line-height: 1.45; }
.push-card strong { font-size: .88rem; }
.push-card span { color: var(--ink-2); }
@media (max-width: 900px) { .push-card { position: static; margin: 0 0 28px; order: -1; width: min(310px, 76vw); } }

/* 섹션 */
.section { padding: 112px 0; }
.section.alt { background: var(--bg-alt); }
.section h2 { text-align: center; }
.section-lead { color: var(--ink-2); font-size: clamp(1.05rem, 2vw, 1.3rem); line-height: 1.5; margin: 20px auto 56px; max-width: 34em; text-align: center; letter-spacing: -.02em; }
.section-lead b { color: var(--ink); }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.stat { background: var(--card-alt); border-radius: var(--radius); padding: 36px 28px; text-align: center; }
.stat b { display: block; font-size: clamp(1.9rem, 4vw, 2.7rem); font-weight: 700; letter-spacing: -.04em; line-height: 1.1; margin-bottom: 8px; }
.stat span { color: var(--ink-2); font-size: .95rem; }
.source { font-size: .75rem; color: var(--ink-3); margin-top: 20px; text-align: center; }

.steps { list-style: none; padding: 0; margin: 0 0 20px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps li, .card { background: var(--card); border-radius: var(--radius); padding: 36px 30px; }
.section:not(.alt) .card { background: var(--card-alt); }
.steps p, .card p { color: var(--ink-2); margin-top: 10px; font-size: 1rem; }
.num { display: block; font-size: .85rem; font-weight: 600; color: var(--brand); margin-bottom: 14px; letter-spacing: .02em; }
.num::before { content: "0"; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
ul.check, ul.cross { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 12px; }
ul.check li, ul.cross li { position: relative; padding-left: 28px; }
ul.check li::before, ul.cross li::before { position: absolute; left: 0; top: .1em; font-weight: 700; font-size: .95em; }
ul.check li::before { content: "✓"; color: var(--ok); }
ul.cross li::before { content: "✕"; color: var(--danger); }
ul.check.light li::before { color: #30d158; }
ul.left { text-align: left; }
.muted { color: var(--ink-2); font-size: .9rem; margin-top: 18px; }
.muted.light { color: #a1a1a6; }

/* 요금 */
.price-card { background: var(--card); border-radius: 28px; padding: 48px 36px 36px; margin-top: 48px; box-shadow: var(--shadow); }
.price b { font-size: clamp(2.6rem, 6vw, 3.5rem); font-weight: 700; letter-spacing: -.045em; line-height: 1; }
.price-sub { color: var(--ink-2); margin: 10px 0 24px; }
.price-card ul { max-width: 22em; margin-inline: auto; }
.price-card .btn { margin-top: 32px; }

/* 자주 묻는 질문 */
details { border-bottom: 1px solid var(--line); }
details:first-of-type { margin-top: 48px; border-top: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 600; font-size: 1.12rem; padding: 22px 36px 22px 0; list-style: none; position: relative; letter-spacing: -.02em; }
summary::-webkit-details-marker { display: none; }
summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 9px; height: 9px; margin-top: -7px;
  border-right: 1.5px solid var(--ink-2); border-bottom: 1.5px solid var(--ink-2); transform: rotate(45deg); transition: transform .2s; }
details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
details p { color: var(--ink-2); padding: 0 0 24px; max-width: 40em; }

/* 제휴 */
.partner { background: var(--dark); color: #f5f5f7; }
.partner h2 { text-align: left; font-size: clamp(1.8rem, 3.8vw, 2.6rem); margin-bottom: 20px; }
.partner .eyebrow { color: #2997ff; font-size: .9rem; }
.partner-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.partner p { color: #a1a1a6; }
.partner ul.check { color: #f5f5f7; }
.form { background: var(--card); color: var(--ink); border-radius: 28px; padding: 36px 32px; display: grid; gap: 16px; }
@media (prefers-color-scheme: dark) { .form { background: var(--dark-card); } }
.form label { display: block; font-weight: 500; font-size: .85rem; color: var(--ink-2); }
.form input:not([type=checkbox]), .form select, .form textarea { display: block; margin-top: 6px; font: 400 1rem var(--font); padding: 12px 14px;
  border: 1px solid var(--line); border-radius: 12px; background: var(--bg); color: var(--ink); width: 100%; min-height: 48px; transition: border-color .15s, box-shadow .15s; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand) 18%, transparent); }
.form textarea { resize: vertical; }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form fieldset { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 20px; }
.form legend { font-weight: 500; font-size: .85rem; color: var(--ink-2); padding: 0; margin-bottom: 8px; }
.form .chk { display: flex; align-items: flex-start; gap: 9px; font-weight: 400; font-size: .95rem; color: var(--ink); }
.form .chk input { width: 19px; height: 19px; margin-top: 3px; flex: none; accent-color: var(--brand); }
.form .consent small { color: var(--ink-3); font-size: .76rem; line-height: 1.5; display: inline-block; margin-top: 4px; }
.req { color: var(--danger); font-size: .72rem; font-weight: 600; margin-left: 4px; }
.form .btn:disabled { opacity: .5; cursor: wait; }
.hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-msg { font-weight: 500; min-height: 1.5em; font-size: .9rem; }
.form-msg.ok { color: var(--ok); }
.form-msg.err { color: var(--danger); }
.invalid { border-color: var(--danger) !important; }

/* 푸터 */
.footer { padding: 28px 0 44px; background: var(--bg-alt); font-size: .75rem; color: var(--ink-3); line-height: 1.6; }
.brand-line { font-weight: 600; color: var(--ink); font-size: .85rem; }
.brand-line span { font-weight: 400; color: var(--ink-3); margin-left: 6px; }
.links { display: flex; flex-wrap: wrap; gap: 4px 20px; margin: 12px 0; padding: 12px 0; border-block: 1px solid var(--line); }
.links a { color: var(--ink-2); }
.company:empty { display: none; }
.company { margin-bottom: 8px; }
.disclaimer { max-width: 62em; }

@media (max-width: 860px) {
  .hero { padding-top: 56px; }
  .partner-grid, .two, .stats, .steps { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .form .row2 { grid-template-columns: 1fr; }
  .form { padding: 28px 22px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }