/* ============================================================
   Slow Dal — K-beauty minimal design system
   Palette: deep dusk purple (night) · pearl moon white · paper ·
            lavender silver · mist grey. Fonts: Pretendard (KO) + Fraunces (Latin display).
   ============================================================ */
:root {
  --color-night:    #262433;
  --color-night-2:  #322E42;
  --color-moon:     #F2EFE9;
  --color-paper:    #FBFAF7;
  --color-lavender: #A9A4C0;
  --color-lavender-soft: #E9E4F2;
  --color-mist:     #8B8896;
  --color-ink:      #2B2A30;
  --color-line:     #E7E3DE;

  --font-display: 'Fraunces', 'Apple SD Gothic Neo', Georgia, serif;
  --font-body: 'Pretendard', 'Apple SD Gothic Neo', 'Malgun Gothic', 'Noto Sans KR', sans-serif;

  --max-read-width: 680px;
  --max-page-width: 1240px;
  --radius: 10px;
  --radius-lg: 18px;
  --space-section: 100px;
  --shadow-soft: 0 10px 40px rgba(38, 36, 51, 0.08);
  --shadow-card: 0 6px 24px rgba(38, 36, 51, 0.06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--color-ink);
  background: var(--color-paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-weight: 600; line-height: 1.4; color: var(--color-night); letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 4.4vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin: 0 0 0.6em; }
h3 { font-size: 1.2rem; margin: 0 0 0.4em; }
p { margin: 0 0 1.1em; }
.container { max-width: var(--max-page-width); margin: 0 auto; padding: 0 24px; }
.read { max-width: var(--max-read-width); }
.eyebrow {
  font-size: 0.8rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--color-lavender); font-weight: 600; margin-bottom: 0.8em;
}
.muted { color: var(--color-mist); }
.center { text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5em;
  padding: 0.95em 1.6em; border-radius: 999px; font-weight: 600;
  font-size: 1rem; border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  font-family: var(--font-body);
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--color-moon); color: var(--color-night); box-shadow: var(--shadow-soft); }
.btn-primary:hover { background: #fff; }
.btn-ghost { background: transparent; color: var(--color-night); border-color: var(--color-line); }
.btn-ghost:hover { border-color: var(--color-lavender); }
.btn-on-dark { background: var(--color-moon); color: var(--color-night); }
.btn-on-dark.ghost { background: transparent; color: var(--color-moon); border-color: rgba(242,239,233,0.4); }
.whatsapp-ico { width: 1.1em; height: 1.1em; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251, 250, 247, 0.86);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: baseline; gap: 0.5em; font-family: var(--font-display); }
.brand .ko { font-family: var(--font-body); font-weight: 700; font-size: 1.2rem; color: var(--color-night); letter-spacing: 0.02em; }
.brand .en { font-size: 0.95rem; color: var(--color-lavender); font-style: italic; }
.nav-links { display: flex; gap: 1.4em; align-items: center; }
.nav-links a { font-size: 0.95rem; color: var(--color-ink); opacity: 0.85; }
.nav-links a:hover { opacity: 1; color: var(--color-night); }
.nav-cta { margin-left: 0.6em; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; cursor: pointer; color: var(--color-night); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(120% 120% at 80% 0%, var(--color-night-2) 0%, var(--color-night) 55%);
  color: var(--color-moon);
  padding: clamp(64px, 9vw, 120px) 0;
}
.hero .container { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 40px; align-items: center; }
.hero h1 { color: var(--color-moon); }
.hero .lead { color: rgba(242,239,233,0.78); font-size: 1.12rem; max-width: 30em; }
.hero .eyebrow { color: var(--color-lavender); }
.hero-actions { display: flex; gap: 0.8em; flex-wrap: wrap; margin-top: 1.6em; }

/* Moon phase animation (CSS, 22s loop) */
.moon-wrap { display: flex; justify-content: center; }
.moon-phase {
  width: clamp(160px, 22vw, 240px); aspect-ratio: 1; border-radius: 50%;
  background: var(--color-moon); position: relative; overflow: hidden;
  box-shadow: 0 0 60px rgba(242,239,233,0.25), inset 0 0 30px rgba(38,36,51,0.08);
}
.moon-phase::after {
  content: ""; position: absolute; inset: -12%; border-radius: 50%;
  background: var(--color-night);
  transform: translateX(-58%);
  animation: moonphase 22s ease-in-out infinite;
}
@keyframes moonphase {
  0%, 100% { transform: translateX(-58%); }
  50%      { transform: translateX(58%); }
}
@media (prefers-reduced-motion: reduce) {
  .moon-phase::after { animation: none; transform: translateX(-20%); }
  html { scroll-behavior: auto; }
}

/* ---------- Sections ---------- */
section { padding: var(--space-section) 0; }
.section-tight { padding: 64px 0; }
.alt { background: linear-gradient(180deg, #fff 0%, var(--color-paper) 100%); }
.dark { background: var(--color-night); color: var(--color-moon); }
.dark h2, .dark h3 { color: var(--color-moon); }
.dark .muted { color: rgba(242,239,233,0.7); }

/* Brand manifesto */
.manifesto { font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 3rem); line-height: 1.3; color: var(--color-night); text-align: center; }

/* ---------- Stat strip ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { text-align: center; padding: 28px 16px; background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg); }
.stat .num { font-family: var(--font-display); font-size: clamp(1.8rem, 3vw, 2.6rem); color: var(--color-night); }
.stat .lbl { font-size: 0.9rem; color: var(--color-mist); margin-top: 0.3em; }

/* ---------- Cards / grid ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow-card);
}
.card h3 { margin-top: 0; }
.card .ico { margin-bottom: 0.7em; color: var(--color-lavender); display: inline-flex; }
.card .ico svg { width: 30px; height: 30px; }

/* ---------- Product grid ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-card {
  background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column; transition: transform .15s ease, box-shadow .15s ease;
}
.product-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-soft); }
.product-card .thumb { aspect-ratio: 4/3; background: var(--color-lavender-soft); }
.product-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-card .body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 0.5em; flex: 1; }
.product-card .model { font-family: var(--font-display); font-size: 0.85rem; letter-spacing: 0.12em; color: var(--color-lavender); }
.product-card .name { font-weight: 600; color: var(--color-night); font-size: 1.05rem; }
.product-card .specs { font-size: 0.88rem; color: var(--color-mist); margin-top: auto; }
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 0.4em; }
.tag { font-size: 0.74rem; padding: 0.25em 0.7em; border-radius: 999px; background: var(--color-lavender-soft); color: var(--color-night); }

/* ---------- Spec table ---------- */
.spec-table { width: 100%; border-collapse: collapse; margin-top: 1em; }
.spec-table th, .spec-table td { text-align: left; padding: 0.7em 0.9em; border-bottom: 1px solid var(--color-line); font-size: 0.95rem; vertical-align: top; }
.spec-table th { width: 38%; color: var(--color-mist); font-weight: 600; }

/* ---------- Answer block (AIO/GEO) ---------- */
.answer-block {
  background: #fff; border: 1px solid var(--color-line); border-left: 3px solid var(--color-lavender);
  border-radius: var(--radius); padding: 22px 26px; margin: 1.4em 0; font-size: 1.02rem; line-height: 1.85;
}

/* ---------- FAQ ---------- */
.faq-item { border-bottom: 1px solid var(--color-line); }
.faq-q { width: 100%; text-align: left; background: none; border: none; padding: 1.1em 0; font-size: 1.05rem; font-weight: 600; color: var(--color-night); cursor: pointer; display: flex; justify-content: space-between; gap: 1em; font-family: var(--font-body); }
.faq-q .sign { color: var(--color-lavender); transition: transform .2s; }
.faq-item.open .faq-q .sign { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .25s ease; color: var(--color-mist); }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a p { padding-bottom: 1.1em; margin: 0; }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field.full { grid-column: 1 / -1; }
label { font-size: 0.9rem; font-weight: 600; color: var(--color-night); }
input, textarea, select {
  font-family: var(--font-body); font-size: 1rem; padding: 0.8em 0.9em;
  border: 1px solid var(--color-line); border-radius: var(--radius); background: #fff; color: var(--color-ink);
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--color-lavender); outline-offset: 1px; }
textarea { min-height: 130px; resize: vertical; }
.form-note { font-size: 0.85rem; color: var(--color-mist); }
.form-status { margin-top: 14px; padding: 0.9em 1.1em; border-radius: var(--radius); font-size: 0.95rem; display: none; }
.form-status.ok { display: block; background: #EAF4EC; color: #1f6b39; border: 1px solid #bfe3c8; }
.form-status.err { display: block; background: #FBEDEA; color: #9b3b2a; border: 1px solid #f0c9bf; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { font-size: 0.85rem; color: var(--color-mist); margin-bottom: 1.4em; }
.breadcrumb a:hover { color: var(--color-night); }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-night); color: rgba(242,239,233,0.8); padding: 64px 0 40px; }
.site-footer a { color: rgba(242,239,233,0.8); }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
.footer-grid h4 { color: var(--color-moon); font-size: 0.95rem; margin-bottom: 1em; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.6em; font-size: 0.92rem; }
.footer-bottom { margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(242,239,233,0.14); font-size: 0.82rem; color: rgba(242,239,233,0.6); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.youth-note { font-size: 0.82rem; color: rgba(242,239,233,0.6); margin-top: 1em; }
.factory-note { font-size: 0.82rem; color: rgba(242,239,233,0.55); margin-top: 0.4em; }

/* ---------- Todo / unconfirmed box (spec: yellow dashed) ---------- */
.todo {
  border: 1px dashed #C9A227; background: #FFFDF2; color: #6b5a12;
  border-radius: var(--radius); padding: 14px 18px; font-size: 0.9rem; margin: 1em 0;
}

/* ---------- Admin ---------- */
.admin-shell { min-height: 100vh; background: var(--color-paper); }
.admin-header { background: var(--color-night); color: var(--color-moon); padding: 14px 0; }
.admin-header .container { display: flex; justify-content: space-between; align-items: center; }
.admin-main { max-width: 1100px; margin: 0 auto; padding: 32px 24px; }
.admin-card { background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-card); }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.admin-table th, .admin-table td { text-align: left; padding: 0.7em 0.8em; border-bottom: 1px solid var(--color-line); }
.admin-table th { color: var(--color-mist); font-weight: 600; }
.badge { font-size: 0.72rem; padding: 0.2em 0.6em; border-radius: 999px; background: var(--color-lavender-soft); color: var(--color-night); }
.login-wrap { max-width: 400px; margin: 8vh auto; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .moon-wrap { order: -1; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .product-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  :root { --space-section: 60px; }
  .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--color-paper); border-bottom: 1px solid var(--color-line); padding: 12px 24px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .grid-3, .product-grid, .stats, .grid-2, .footer-grid, .form-grid { grid-template-columns: 1fr; }
  .product-grid { gap: 18px; }
}

/* ============================================================
   v2 — Conversion & marketing components
   (B2B inquiry-driven layer: trust bar, KPI, comparison,
    process timeline, pain/solution, proof, CTA band, sticky bar)
   ============================================================ */

/* ---------- Trust bar (under hero) ---------- */
.trust-bar { background: var(--color-night-2); color: var(--color-moon); border-top: 1px solid rgba(242,239,233,0.1); padding: 16px 0; }
.trust-bar .container { display: flex; flex-wrap: wrap; gap: 8px 30px; align-items: center; justify-content: center; }
.trust-item { display: flex; align-items: center; gap: 0.55em; font-size: 0.85rem; color: rgba(242,239,233,0.82); }
.trust-item .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-lavender); flex: none; }
.trust-item strong { color: var(--color-moon); }

/* ---------- KPI row (hero, on dark) ---------- */
.kpi-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 2.1em; }
.kpi { padding: 18px 20px; border-radius: var(--radius); background: rgba(242,239,233,0.06); border: 1px solid rgba(242,239,233,0.14); }
.kpi .n { font-family: var(--font-display); font-size: 1.55rem; color: var(--color-moon); line-height: 1.15; }
.kpi .t { font-size: 0.8rem; color: rgba(242,239,233,0.66); margin-top: 0.25em; }

/* ---------- Certification badges ---------- */
.cert-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 1.3em; }
.cert { font-size: 0.74rem; letter-spacing: 0.06em; padding: 0.42em 0.85em; border-radius: 6px; background: #fff; border: 1px solid var(--color-line); color: var(--color-night); font-weight: 600; }
.dark .cert, .cta-band .cert { background: rgba(242,239,233,0.08); border-color: rgba(242,239,233,0.22); color: var(--color-moon); }

/* ---------- Section heading ---------- */
.sec-head { max-width: 46em; margin: 0 auto 2.6em; text-align: center; }
.sec-head h2 { margin-bottom: 0.45em; }
.sec-head p { color: var(--color-mist); margin: 0; }
.dark .sec-head p { color: rgba(242,239,233,0.72); }

/* ---------- Comparison table ---------- */
.cmp-wrap { overflow-x: auto; border: 1px solid var(--color-line); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-card); }
.cmp { width: 100%; border-collapse: collapse; min-width: 680px; font-size: 0.92rem; }
.cmp th, .cmp td { padding: 0.95em 1.15em; text-align: left; border-bottom: 1px solid var(--color-line); vertical-align: top; }
.cmp thead th { background: var(--color-night); color: var(--color-moon); font-weight: 600; font-size: 0.86rem; letter-spacing: 0.04em; }
.cmp thead th:first-child { background: var(--color-night); }
.cmp tbody th { color: var(--color-mist); font-weight: 600; width: 23%; background: #FCFBF9; }
.cmp tr:last-child td, .cmp tr:last-child th { border-bottom: none; }
.cmp .hl { background: var(--color-lavender-soft); }
.cmp .hl strong { color: var(--color-night); }

/* ---------- Process timeline ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.step { position: relative; }
.step .idx { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; background: var(--color-night); color: var(--color-moon); font-family: var(--font-display); font-size: 1.05rem; margin-bottom: 0.85em; }
.step .day { font-size: 0.76rem; letter-spacing: 0.12em; color: var(--color-lavender); font-weight: 700; text-transform: uppercase; }
.step h3 { font-size: 1.02rem; margin: 0.25em 0 0.4em; }
.step p { font-size: 0.9rem; color: var(--color-mist); margin: 0; }
.step .out { font-size: 0.8rem; color: var(--color-mist); margin-top: 0.7em; border-top: 1px dashed var(--color-line); padding-top: 0.7em; }
.dark .step .idx { background: var(--color-moon); color: var(--color-night); }
.dark .step p, .dark .step .out { color: rgba(242,239,233,0.7); }
.dark .step .out { border-top-color: rgba(242,239,233,0.16); }

/* ---------- Pain / solution cards ---------- */
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pain { border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: 26px; background: #fff; box-shadow: var(--shadow-card); }
.pain .q { font-weight: 700; color: var(--color-night); margin-bottom: 0.55em; display: flex; gap: 0.5em; }
.pain .q .mk { color: var(--color-lavender); flex: none; }
.pain .a { color: var(--color-mist); font-size: 0.93rem; }
.pain .a strong { color: var(--color-night); font-weight: 600; }

/* ---------- Proof / quote cards ---------- */
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.quote { background: #fff; border: 1px solid var(--color-line); border-left: 3px solid var(--color-lavender); border-radius: var(--radius); padding: 24px; }
.quote p { font-size: 0.95rem; color: var(--color-ink); margin-bottom: 0.9em; }
.quote .who { font-size: 0.81rem; color: var(--color-mist); }

/* ---------- CTA band ---------- */
.cta-band { background: radial-gradient(130% 170% at 50% 0%, var(--color-night-2), var(--color-night)); color: var(--color-moon); }
.cta-band h2 { color: var(--color-moon); }
.cta-actions { display: flex; gap: 0.8em; flex-wrap: wrap; justify-content: center; margin-top: 1.5em; }
.cta-sub { color: rgba(242,239,233,0.72); font-size: 0.9rem; margin-top: 1.1em; }

/* ---------- Check list ---------- */
.checks { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.62em; }
.checks li { position: relative; padding-left: 1.65em; font-size: 0.95rem; }
.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--color-lavender); font-weight: 700; }
.dark .checks li::before { color: var(--color-moon); }

/* ---------- Ribbon ---------- */
.ribbon { display: inline-block; font-size: 0.74rem; font-weight: 700; letter-spacing: 0.09em; padding: 0.35em 0.95em; border-radius: 999px; background: var(--color-lavender-soft); color: var(--color-night); margin-bottom: 1em; }
.dark .ribbon, .cta-band .ribbon { background: rgba(242,239,233,0.12); color: var(--color-moon); }

/* ---------- Accent inline number ---------- */
.hl-num { font-family: var(--font-display); color: var(--color-night); font-weight: 600; font-size: 1.06em; }

/* ---------- Product card CTA + hover ---------- */
.product-card .body .cta { margin-top: 0.9em; }
.product-card .body .cta .btn { width: 100%; justify-content: center; padding: 0.7em 1em; font-size: 0.92rem; }

/* ---------- Filter bar ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 2.2em; }
.filter-btn { font-family: var(--font-body); font-size: 0.88rem; padding: 0.55em 1.15em; border-radius: 999px; border: 1px solid var(--color-line); background: #fff; color: var(--color-ink); cursor: pointer; transition: all .15s ease; }
.filter-btn:hover { border-color: var(--color-lavender); }
.filter-btn.active { background: var(--color-night); color: var(--color-moon); border-color: var(--color-night); }

/* ---------- Sticky mobile CTA ---------- */
.sticky-cta { position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; display: none; background: var(--color-night); padding: 9px 14px calc(9px + env(safe-area-inset-bottom)); box-shadow: 0 -6px 24px rgba(38,36,51,0.28); }
.sticky-cta .inner { display: flex; gap: 9px; max-width: var(--max-page-width); margin: 0 auto; }
.sticky-cta .btn { flex: 1; justify-content: center; padding: 0.78em 0.8em; font-size: 0.94rem; }

/* ---------- Anchor offset for sticky header ---------- */
.anchor { scroll-margin-top: 84px; }

/* ---------- Responsive for v2 ---------- */
@media (max-width: 900px) {
  .kpi-row { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 22px 26px; }
  .pain-grid, .quote-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .kpi-row { grid-template-columns: 1fr; gap: 10px; }
  .steps { grid-template-columns: 1fr; gap: 24px; }
  .sticky-cta { display: block; }
  body { padding-bottom: 62px; }
}