/* services/noshow-demo/web/styles/landing.css
   Landing page only (index.html). Deliberately does NOT load app.css —
   engineer owns app.css for /demo and /admin in parallel. Design primitives
   (radius/space/shadow/font scale) are duplicated verbatim from app.css so
   the landing and the app read as one product; only the accent color
   changes here (kakao yellow, reused from app.css's --color-kakao chat
   bubble token, instead of the app's purple — avoids a purple/gradient
   "AI-slop" accent on the public-facing marketing surface and ties directly
   to the "카톡" hook in the headline). Mobile-first: 360px base, widens via
   media queries. No external fonts, no CDN, no service worker. */

:root {
  --color-bg: #f7f7fb;
  --color-surface: #ffffff;
  --color-border: #e4e4ec;
  --color-text: #1c1c28;
  --color-text-muted: #6b6b7b;

  --color-accent: #fee500;       /* kakao yellow — matches app.css --color-kakao */
  --color-accent-dark: #e6cf00;
  --color-accent-text: #3c1e1e;  /* matches app.css --color-kakao-text */

  --color-success: #1a9e6b;
  --color-success-bg: #e7f8f1;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-card: 0 1px 3px rgba(28, 28, 40, 0.08), 0 1px 2px rgba(28, 28, 40, 0.06);

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", "Apple SD Gothic Neo",
    Roboto, Helvetica, Arial, sans-serif;

  --lp-max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-stack);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  margin: 0 0 var(--space-3);
  line-height: 1.3;
}

p {
  margin: 0 0 var(--space-3);
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
}

/* ── Skip link (a11y) ────────────────────────────────────────────────────── */

.lp-skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-accent-text);
  padding: var(--space-3) var(--space-4);
  border-radius: 0 0 var(--radius-sm) 0;
  font-weight: 700;
  z-index: 100;
}

.lp-skip-link:focus {
  left: 0;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: 12px 22px;
  font-size: 16px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  min-height: 48px;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent-dark);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-text);
}

.btn--primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.btn--secondary {
  background: var(--color-surface);
  border-color: var(--color-text);
  color: var(--color-text);
}

.btn--secondary:hover {
  background: var(--color-bg);
}

.btn--ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn--ghost:hover {
  background: var(--color-surface);
  border-color: var(--color-text-muted);
}

.btn--full {
  width: 100%;
}

/* ── Layout shell ────────────────────────────────────────────────────────── */

.lp-topbar {
  max-width: var(--lp-max-width);
  margin: 0 auto;
  padding: var(--space-5) var(--space-4);
}

.lp-topbar__brand {
  font-weight: 800;
  font-size: 18px;
  color: var(--color-text);
}

main {
  display: block;
}

.lp-section {
  max-width: var(--lp-max-width);
  margin: 0 auto;
  padding: var(--space-7) var(--space-4);
}

.lp-section__heading {
  font-size: 24px;
  text-align: center;
  margin-bottom: var(--space-6);
}

/* ── Hero ────────────────────────────────────────────────────────────────── */

.lp-hero {
  max-width: var(--lp-max-width);
  margin: 0 auto;
  padding: var(--space-8) var(--space-4) var(--space-7);
  text-align: center;
}

.lp-hero__headline {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}

.lp-hero__subhead {
  font-size: 17px;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto var(--space-6);
}

.lp-hero__cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 360px;
  margin: 0 auto;
}

/* ── 페인 카드 ───────────────────────────────────────────────────────────── */

.lp-pain {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
}

.lp-pain__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.lp-pain-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

.lp-pain-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-bg);
  color: var(--color-text);
  font-weight: 800;
  font-size: 14px;
  margin-bottom: var(--space-3);
}

.lp-pain-card__lead {
  font-weight: 700;
  font-size: 16px;
  margin-bottom: var(--space-2);
}

.lp-pain-card__body {
  color: var(--color-text-muted);
  font-size: 14px;
  margin-bottom: 0;
}

/* ── 작동방식 ────────────────────────────────────────────────────────────── */

.lp-how__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.lp-how-step {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.lp-how-step__num {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-accent-text);
  font-weight: 800;
  font-size: 15px;
}

.lp-how-step__lead {
  font-weight: 700;
  font-size: 16px;
  margin-bottom: var(--space-1);
}

.lp-how-step__body {
  color: var(--color-text-muted);
  font-size: 14px;
  margin-bottom: 0;
}

/* ── 라이브 데모 안내 ────────────────────────────────────────────────────── */

.lp-demo {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  text-align: center;
}

.lp-demo__intro {
  font-size: 16px;
  margin-bottom: var(--space-5);
}

.lp-demo__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 420px;
  margin: 0 auto var(--space-5);
}

.lp-demo__hint {
  color: var(--color-text-muted);
  font-size: 14px;
  max-width: 560px;
  margin: 0 auto var(--space-5);
}

.lp-demo__disclaimer {
  text-align: left;
  margin: 0;
  padding: var(--space-4) var(--space-5);
  background: #fff6db;
  border: 1px solid #f0dfa0;
  border-left: 4px solid var(--color-accent-dark);
  border-radius: var(--radius-sm);
  color: #6b5717;
  font-size: 14px;
}

.lp-demo__disclaimer p {
  margin: 0;
}

/* ── 가격표 ──────────────────────────────────────────────────────────────── */

.lp-pricing__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.price-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
}

.price-card--featured {
  border: 2px solid var(--color-accent-dark);
}

.price-card__badge {
  position: absolute;
  top: -12px;
  right: var(--space-5);
  background: var(--color-accent);
  color: var(--color-accent-text);
  font-size: 12px;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 999px;
}

.price-card__tier {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.price-card__setup {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: var(--space-1);
}

.price-card__monthly {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.price-card__features {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
  margin-bottom: var(--space-4);
}

.price-card__features li {
  font-size: 14px;
  padding: var(--space-1) 0;
  padding-left: 26px;
  position: relative;
}

.price-card__features li.is-included {
  color: var(--color-text);
}

.price-card__features li.is-included::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 800;
}

.price-card__features li.is-excluded {
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.price-card__features li.is-excluded::before {
  content: "\2013";
  position: absolute;
  left: 4px;
  color: var(--color-text-muted);
}

.price-card__duration {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.lp-pricing__cta {
  text-align: center;
  margin-top: var(--space-6);
}

/* ── FAQ ─────────────────────────────────────────────────────────────────── */

.lp-faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-3);
}

.lp-faq-item summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.lp-faq-item summary::-webkit-details-marker {
  color: var(--color-accent-dark);
}

.lp-faq-item p {
  margin: var(--space-3) 0 0;
  color: var(--color-text-muted);
  font-size: 14px;
}

/* ── 최종 CTA ────────────────────────────────────────────────────────────── */

.lp-final-cta {
  text-align: center;
}

.lp-final-cta__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 420px;
  margin: 0 auto;
}

.lp-final-cta__placeholder {
  justify-content: space-between;
}

.lp-final-cta__badge {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border-radius: 999px;
  padding: 2px 10px;
}

/* ── Footer ──────────────────────────────────────────────────────────────── */

.lp-footer {
  text-align: center;
  padding: var(--space-6) var(--space-4) var(--space-8);
  color: var(--color-text-muted);
  font-size: 13px;
}

.lp-footer p {
  margin: 0;
}

/* ── Responsive: tablet/desktop ──────────────────────────────────────────── */

@media (min-width: 640px) {
  .lp-hero__headline {
    font-size: 42px;
  }

  .lp-hero__cta {
    flex-direction: row;
    justify-content: center;
    max-width: none;
  }

  .lp-hero__cta .btn {
    min-width: 200px;
  }

  .lp-demo__links {
    flex-direction: row;
    justify-content: center;
    max-width: none;
  }

  .lp-final-cta__links {
    max-width: 520px;
  }
}

@media (min-width: 860px) {
  .lp-pain__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .lp-how__list {
    grid-template-columns: repeat(3, 1fr);
  }

  .lp-how-step {
    flex-direction: column;
  }

  .lp-pricing__grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
  }
}

@media (min-width: 1280px) {
  .lp-hero__headline {
    font-size: 48px;
  }
}