@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable.css");
@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@500;700&family=JetBrains+Mono:wght@400;600&display=swap");

:root {
  /* sysnal Brand Identity Colors */
  --sysnal-navy: #0D3B73;
  --sysnal-navy-bright: #16539E;
  --sysnal-copper: #C86432;
  --sysnal-copper-bright: #E07A48;
  --sysnal-silver: #A9AAA5;
  --sysnal-silver-bright: #D5D7DA;

  /* Theme Tokens */
  --ink: #0B0F17;              /* Deep Navy Night Background */
  --ink-soft: #131924;         /* Rich Card Background */
  --ink-card: #182130;         /* Card Elevated */
  --paper: #F2F5F8;            /* Crisp Bright Text */
  --paper-dim: #94A3B8;        /* Muted Text */
  --signal: #E07A48;           /* Primary Copper Signal Accent */
  --signal-dim: #C86432;       /* Dim Copper */
  --signal-blue: #2A7FE2;      /* Signal Navy Blue Accent */
  --ok: #2DD4BF;               /* Mint Teal Success */
  --line: #222E42;             /* Subtle Border Line */
  --radius: 8px;
  --serif: "Noto Serif KR", serif;
  --sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }

/* Header */
.topbar {
  position: sticky; top: 0; z-index: 40;
  background: rgba(11,15,23,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 20px; max-width: 720px; margin: 0 auto; }
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo-symbol-img {
  height: 38px;
  width: 38px;
  object-fit: contain;
  background: #ffffff;
  padding: 4px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: block;
}
.logo:hover .logo-symbol-img {
  transform: scale(1.05);
  box-shadow: 0 4px 14px rgba(200, 100, 50, 0.35);
}
.logo-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.15;
}
.logo-name {
  font-family: var(--sans);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #ffffff;
}
.logo-tagline {
  font-family: var(--sans);
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  margin-top: 2px;
}
.logo-tagline .sig { color: #2A7FE2; }
.logo-tagline .sys { color: #E07A48; }
.logo-tagline .gro { color: #A9AAA5; }
.user-chip { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--paper-dim); }
.btn {
  font-family: var(--sans); font-size: 14px; font-weight: 500;
  padding: 10px 18px; border-radius: var(--radius); cursor: pointer;
  border: 1px solid transparent; transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex; align-items: center; justify-content: center;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: linear-gradient(135deg, #C86432 0%, #E07A48 100%);
  color: #FFFFFF;
  border: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 4px 14px rgba(200, 100, 50, 0.25);
  font-weight: 600;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #D46F3C 0%, #ED8755 100%);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(200, 100, 50, 0.35);
}
.btn-ghost { background: transparent; color: var(--paper); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--paper-dim); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-block { width: 100%; }

/* Language switch */
.lang-switch {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em;
  padding: 5px 9px; border-radius: 999px; border: 1px solid var(--line);
  background: transparent; color: var(--paper-dim); cursor: pointer;
}
.lang-switch:hover { border-color: var(--signal-dim); color: var(--signal); }

/* Hero */
.hero { padding: 56px 0 32px; }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; color: var(--signal); text-transform: uppercase; }
.hero h1 {
  font-family: var(--serif); font-weight: 700; font-size: clamp(30px, 6vw, 44px);
  line-height: 1.25; margin: 14px 0 16px;
}
.hero p.lede { color: var(--paper-dim); font-size: 16px; max-width: 54ch; margin-bottom: 20px; }

/* Growth strip: 재방문 로그인 사용자에게 누적/성장 느낌을 주는 칩 목록 */
.growth-strip { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 28px; }
.growth-chip {
  font-family: var(--mono); font-size: 12px; padding: 6px 12px;
  border: 1px solid var(--line); border-radius: 999px; color: var(--paper-dim); background: var(--ink-soft);
}
.growth-chip b { color: var(--paper); }
.growth-chip.signal { border-color: var(--signal-dim); color: var(--signal); }

/* Signature: revenue equation */
.equation {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-family: var(--mono); margin: 8px 0 20px; padding: 20px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--ink-soft);
}
.eq-block {
  padding: 10px 14px; border-radius: 6px; background: #23201a; border: 1px solid var(--line);
  font-size: 14px; color: var(--paper); opacity: 0; transform: translateY(6px);
  animation: eqIn .5s ease forwards;
}
.eq-block b { color: var(--signal); display: block; font-size: 11px; letter-spacing: 0.06em; margin-bottom: 4px; font-weight: 600; }
.eq-block.result { border-color: var(--signal-dim); }
.eq-op { color: var(--paper-dim); font-size: 20px; }
.eq-block:nth-child(1) { animation-delay: .05s; }
.eq-block:nth-child(3) { animation-delay: .2s; }
.eq-block:nth-child(5) { animation-delay: .35s; }
@keyframes eqIn { to { opacity: 1; transform: translateY(0); } }

/* "왜 중요한가?" 설명 토글 — 각 진단 카드 및 히어로 프레이머에서 재사용 */
.why-toggle { margin-top: 10px; }
.why-toggle summary {
  cursor: pointer; font-size: 12.5px; color: var(--signal-dim);
  font-family: var(--mono); list-style: none; display: inline-flex; align-items: center; gap: 6px;
  user-select: none;
}
.why-toggle summary::-webkit-details-marker { display: none; }
.why-toggle summary::before {
  content: "?"; display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px; border-radius: 50%; border: 1px solid var(--signal-dim); font-size: 11px; flex-shrink: 0;
}
.why-toggle[open] summary { color: var(--signal); }
.why-toggle p {
  margin: 8px 0 0; padding: 10px 12px; background: var(--ink); border-left: 2px solid var(--signal-dim);
  font-size: 13px; color: var(--paper-dim); line-height: 1.65; border-radius: 4px;
}
.hero-primer { margin: 0 0 28px; }
.hero-primer summary { font-size: 13.5px; }

/* How it works (전환 저항을 낮추는 3단계 안내) */
.how-it-works {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 0 0 28px;
}
.hiw-step {
  border: 1px solid var(--line); border-radius: 10px; padding: 14px 12px; background: var(--ink-soft); text-align: center;
}
.hiw-step span {
  display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px;
  border-radius: 50%; background: var(--signal); color: #1a1200; font-family: var(--mono); font-weight: 700; font-size: 12px; margin-bottom: 8px;
}
.hiw-step p { margin: 0; font-size: 12.5px; color: var(--paper-dim); line-height: 1.4; }

textarea, input[type=text], input[type=email] {
  width: 100%; font-family: var(--sans); font-size: 15px; color: var(--paper);
  background: var(--ink-soft); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; resize: vertical;
}
textarea:focus, input:focus { border-color: var(--signal); }
label { display: block; font-size: 13px; color: var(--paper-dim); margin-bottom: 8px; }

.field { margin-bottom: 20px; }

/* Sections */
section.panel { padding: 40px 0; border-top: 1px solid var(--line); }
.section-title { font-family: var(--serif); font-size: 22px; margin: 0 0 6px; }
.section-sub { color: var(--paper-dim); font-size: 14px; margin: 0 0 24px; }

.tier-badge {
  display: inline-block; font-family: var(--mono); font-size: 12px; padding: 4px 10px;
  border-radius: 999px; border: 1px solid var(--signal-dim); color: var(--signal); margin-bottom: 14px;
}

.card {
  background: var(--ink-soft); border: 1px solid var(--line); border-radius: 10px; padding: 20px; margin-bottom: 16px;
}
.card h3 { margin: 0 0 8px; font-size: 15px; color: var(--signal); font-family: var(--mono); letter-spacing: 0.02em; }
.card p { margin: 0; font-size: 14.5px; }
.card ul { margin: 8px 0 0; padding-left: 18px; }
.card li { margin-bottom: 6px; font-size: 14.5px; }

.pricing-tiers { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 620px) { .pricing-tiers { grid-template-columns: repeat(3, 1fr); } }
.tier { border: 1px solid var(--line); border-radius: 10px; padding: 18px; background: var(--ink-soft); }
.tier.core { border-color: var(--signal); box-shadow: 0 0 0 1px var(--signal) inset; }
.tier .price { font-family: var(--mono); font-size: 24px; margin: 6px 0 10px; color: var(--signal); }
.tier .name { font-size: 13px; color: var(--paper-dim); letter-spacing: 0.04em; text-transform: uppercase; }
.tier .desc { font-size: 13.5px; color: var(--paper-dim); margin-bottom: 14px; }

.qfield { margin-bottom: 18px; }
.qfield label { color: var(--paper); font-size: 14.5px; margin-bottom: 8px; }

.report-body { font-size: 15px; white-space: pre-wrap; line-height: 1.85; }
.report-body h2 { font-family: var(--serif); font-size: 19px; margin: 28px 0 10px; color: var(--signal); }
.report-body h3 { font-size: 16px; margin: 20px 0 8px; }

.chat { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }
.msg { max-width: 88%; padding: 12px 14px; border-radius: 10px; font-size: 14.5px; white-space: pre-wrap; }
.msg.user { align-self: flex-end; background: var(--signal); color: #1a1200; }
.msg.expert { align-self: flex-start; background: var(--ink-soft); border: 1px solid var(--line); }
.round-counter { font-family: var(--mono); font-size: 12px; color: var(--paper-dim); margin-bottom: 14px; }

.status-line { font-family: var(--mono); font-size: 13px; color: var(--paper-dim); display: flex; align-items: center; gap: 8px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--signal); animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 0.4; } 50% { opacity: 1; } }

.hint { font-size: 12.5px; color: var(--paper-dim); margin-top: 8px; }
.error { color: #e0654d; font-size: 13.5px; margin-top: 8px; }
.hidden { display: none !important; }

footer { padding: 40px 0 60px; color: var(--paper-dim); font-size: 12.5px; border-top: 1px solid var(--line); }

/* Solution Gating / Blur styles */
.solution-locked {
  position: relative;
  overflow: hidden;
  border: 1px dashed var(--signal-dim);
  border-radius: 10px;
  padding: 16px;
  margin: 20px 0;
  background: rgba(26,24,20,0.6);
}
.blur-content {
  filter: blur(6px);
  user-select: none;
  pointer-events: none;
  opacity: 0.5;
}
.unlock-card {
  border: 1px solid var(--signal);
  background: linear-gradient(180deg, #241d13 0%, var(--ink-soft) 100%);
  box-shadow: 0 4px 20px rgba(232, 163, 61, 0.15);
}
.badge-free {
  background: var(--ok); color: #0a201b; font-weight: 700; font-size: 11px;
  padding: 2px 8px; border-radius: 4px; margin-left: 8px; text-transform: uppercase;
}
.badge-locked {
  background: var(--signal-dim); color: #fff; font-weight: 700; font-size: 11px;
  padding: 2px 8px; border-radius: 4px; margin-left: 8px; text-transform: uppercase;
}

@media (max-width: 480px) {
  .how-it-works { grid-template-columns: 1fr; }
}

/* Card Header Flex Layout & Visual Why Button */
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.card-title-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.card-header h3 {
  margin: 0 !important;
}

.why-badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  color: var(--signal);
  background: rgba(232, 163, 61, 0.12);
  border: 1px solid var(--signal-dim);
  border-radius: 20px;
  padding: 4px 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}
.why-badge-btn:hover {
  background: var(--signal);
  color: #1a1200;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(232, 163, 61, 0.3);
}
.why-badge-btn .arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}
.why-badge-btn:hover .arrow {
  transform: translateX(3px);
}

/* Visual Why Modal Layer */
.why-modal-backdrop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 1000;
  background: rgba(10, 9, 8, 0.82);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}
.why-modal-card {
  background: var(--ink-soft);
  border: 1px solid var(--signal);
  border-radius: 14px;
  max-width: 520px;
  width: 100%;
  padding: 28px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(232, 163, 61, 0.2);
  animation: modalSlideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.why-modal-badge {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--signal);
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}
.why-modal-title {
  font-family: var(--serif);
  font-size: 20px;
  margin: 0 0 14px;
  color: var(--paper);
  line-height: 1.3;
}
.why-modal-body {
  font-size: 14.5px;
  color: var(--paper-dim);
  line-height: 1.7;
  background: var(--ink);
  padding: 16px;
  border-radius: 8px;
  border-left: 3px solid var(--signal);
  margin-bottom: 20px;
  white-space: pre-wrap;
}
.why-modal-close {
  display: block;
  width: 100%;
}