/* ============================================================
   덱캐스트 DeckCast — 랜딩 스타일 (다크 고정)
   포인트 컬러: 웜 오렌지 계열 / 뉴트럴 다크
   ============================================================ */

:root {
  /* 뉴트럴 */
  --bg: #0e0d12;
  --bg-2: #15131b;
  --bg-3: #1c1a24;
  --surface: #17161e;
  --surface-2: #1f1d29;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);

  --text: #f4f2f7;
  --text-2: #c3bfce;
  --text-3: #8b8798;

  /* 포인트 (웜 오렌지) */
  --accent: #ff7a33;
  --accent-2: #ff9a5c;
  --accent-soft: rgba(255, 122, 51, 0.14);
  --accent-glow: rgba(255, 122, 51, 0.42);

  --radius: 16px;
  --radius-sm: 11px;
  --radius-lg: 24px;

  --maxw: 1120px;
  --maxw-narrow: 720px;

  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --font: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, "Apple SD Gothic Neo", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { line-height: 1.25; letter-spacing: -0.025em; margin: 0; font-weight: 700; }
h1, h2, h3, p, li { word-break: keep-all; overflow-wrap: break-word; }

.process-figure { margin: 0 auto 44px; max-width: 880px; }
.process-figure img { display: block; width: 100%; height: auto; border-radius: 16px; }

.sub-id-row { margin: 6px 0 14px 30px; }
.sub-id-row input { width: 100%; max-width: 320px; }
.sub-id-row .field-help { margin-top: 6px; }

.footer-link-btn { background: none; border: none; padding: 0; font: inherit; color: inherit; cursor: pointer; text-decoration: none; }
.footer-link-btn:hover { text-decoration: underline; }

.contact-modal { border: 1px solid rgba(255,255,255,0.12); border-radius: 18px; background: #17161d; color: inherit; padding: 28px; width: min(92vw, 460px); }
.contact-modal::backdrop { background: rgba(0,0,0,0.6); backdrop-filter: blur(2px); }
.contact-modal h3 { margin-bottom: 6px; }
.contact-lead { color: rgba(255,255,255,0.65); margin-bottom: 18px; font-size: 0.95rem; }
.contact-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 16px; }
.contact-success { text-align: center; padding: 26px 6px; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg, video { max-width: 100%; display: block; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: var(--maxw-narrow); }

.accent { color: var(--accent); }

/* ===== 버튼 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  font-family: inherit; font-weight: 600; font-size: 1rem;
  border: 1px solid transparent; border-radius: 999px;
  padding: 12px 22px; cursor: pointer;
  transition: transform 0.18s var(--ease), background 0.18s var(--ease), box-shadow 0.18s var(--ease), border-color 0.18s var(--ease);
  white-space: nowrap;
}
.btn-lg { padding: 15px 30px; font-size: 1.05rem; }
.btn-sm { padding: 9px 18px; font-size: 0.92rem; }
.btn-block { width: 100%; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #1a0e05;
  box-shadow: 0 10px 30px -8px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 38px -8px var(--accent-glow); }
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.09); transform: translateY(-2px); }

.btn .strike { opacity: 0.85; }

/* ===== 헤더 ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(160%) blur(14px);
  background: rgba(14, 13, 18, 0.6);
  border-bottom: 1px solid transparent;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}
.site-header.scrolled { background: rgba(14, 13, 18, 0.9); border-bottom-color: var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); }
.brand-mark { color: var(--accent); display: inline-flex; }
.brand-name { font-weight: 800; font-size: 1.15rem; letter-spacing: -0.03em; }
.header-nav { display: flex; align-items: center; gap: 26px; }
.header-nav a { color: var(--text-2); font-size: 0.95rem; font-weight: 500; transition: color 0.15s; }
.header-nav a:hover { color: var(--text); }
.header-nav a.btn { color: #1a0e05; }
.header-nav a.btn:hover { color: #1a0e05; }

/* ===== 히어로 ===== */
.hero { position: relative; overflow: hidden; padding: 96px 0 88px; isolation: isolate; }
.hero-bg { position: absolute; inset: 0; z-index: -1; }
.hero-bg::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(80% 55% at 50% -10%, rgba(255, 122, 51, 0.20), transparent 62%),
    radial-gradient(60% 50% at 85% 10%, rgba(120, 80, 255, 0.12), transparent 60%),
    linear-gradient(180deg, #14121b 0%, var(--bg) 70%);
}
.hero-glow {
  position: absolute; top: -180px; left: 50%; transform: translateX(-50%);
  width: 720px; height: 420px;
  background: radial-gradient(ellipse at center, var(--accent-glow), transparent 68%);
  filter: blur(30px); opacity: 0.5;
}
.hero-wave { position: absolute; bottom: 0; left: 0; width: 100%; height: 180px; opacity: 0.5; }

.hero-inner { position: relative; text-align: center; max-width: 880px; margin: 0 auto; }
.hero-eyebrow {
  display: inline-block; font-size: 0.9rem; font-weight: 600; color: var(--accent-2);
  background: var(--accent-soft); border: 1px solid rgba(255, 122, 51, 0.25);
  padding: 7px 16px; border-radius: 999px; margin-bottom: 24px;
}
.hero-title { font-size: clamp(2rem, 5.4vw, 3.35rem); font-weight: 800; margin-bottom: 22px; }
.hero-sub { font-size: clamp(1.05rem, 2.4vw, 1.3rem); color: var(--text-2); margin-bottom: 34px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.hero-cta .strike { text-decoration: line-through; opacity: 0.7; margin: 0 -2px; }
.hero-note { font-size: 0.9rem; color: var(--text-3); margin-bottom: 40px; }
.hero-definition {
  font-size: 0.98rem; color: var(--text-2); max-width: 640px; margin: 0 auto;
  padding-top: 26px; border-top: 1px solid var(--border);
}

/* ===== 섹션 공통 ===== */
.section { padding: 92px 0; }
.section-title { font-size: clamp(1.6rem, 3.6vw, 2.3rem); text-align: center; margin-bottom: 16px; }
.section-lead { text-align: center; color: var(--text-2); font-size: 1.08rem; max-width: 640px; margin: 0 auto 48px; }

/* ===== 공감 ===== */
.empathy { background: var(--bg-2); }
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.pain-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}
.pain-card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.pain-icon {
  width: 52px; height: 52px; border-radius: 13px; display: flex; align-items: center; justify-content: center;
  background: var(--accent-soft); color: var(--accent-2); margin-bottom: 18px;
}
.pain-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.pain-card p { color: var(--text-2); font-size: 0.98rem; }

/* ===== 샘플 ===== */
.sample-frame {
  aspect-ratio: 16 / 9; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow);
}
.sample-frame iframe { display: block; width: 100%; height: 100%; border: 0; }
.sample-note { text-align: center; color: var(--text-dim, rgba(255,255,255,0.6)); margin-top: 16px; font-size: 0.95rem; }
.sample-placeholder {
  height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; text-align: center;
  background:
    radial-gradient(60% 60% at 50% 40%, rgba(255, 122, 51, 0.10), transparent 70%),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.015) 0 12px, transparent 12px 24px),
    var(--surface-2);
}
.sample-play {
  width: 78px; height: 78px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #1a0e05;
  box-shadow: 0 12px 40px -8px var(--accent-glow);
}
.sample-msg { font-size: 1.25rem; font-weight: 700; }
.sample-sub { color: var(--text-3); font-size: 0.95rem; }

/* ===== 작동 방식 ===== */
.how { background: var(--bg-2); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step-card {
  position: relative; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 40px 28px 30px; text-align: center;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}
.step-card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.step-num {
  position: absolute; top: -18px; left: 50%; transform: translateX(-50%);
  width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.05rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #1a0e05;
  box-shadow: 0 8px 20px -6px var(--accent-glow);
}
.step-icon { color: var(--accent-2); margin: 0 auto 16px; display: flex; justify-content: center; }
.step-card h3 { font-size: 1.22rem; margin-bottom: 10px; }
.step-card p { color: var(--text-2); font-size: 0.98rem; }

/* ===== 음성 옵션 / 대상 카드 공통 ===== */
.format-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.format-card, .audience-card {
  position: relative; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 24px;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}
.format-card:hover, .audience-card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.format-card.recommended { border-color: rgba(255, 122, 51, 0.4); background: linear-gradient(180deg, var(--accent-soft), var(--surface) 55%); }
.format-emoji { font-size: 2rem; margin-bottom: 14px; }
.format-card h3, .audience-card h3 { font-size: 1.18rem; margin-bottom: 8px; }
.format-meta { color: var(--accent-2); font-size: 0.86rem; font-weight: 600; margin-bottom: 10px; }
.format-card p, .audience-card p { color: var(--text-2); font-size: 0.95rem; }
.badge {
  position: absolute; top: 16px; right: 16px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.02em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #1a0e05;
  padding: 4px 10px; border-radius: 999px;
}

/* ===== 대상 ===== */
.audience { background: var(--bg-2); }
.audience-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 22px; }
.audience-card { padding: 34px 30px; }
.audience-card.main { border-color: rgba(255, 122, 51, 0.4); background: linear-gradient(180deg, var(--accent-soft), var(--surface) 60%); }
.audience-card .format-emoji { font-size: 2.4rem; }

/* ===== 베타 ===== */
.beta-card {
  display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 0;
  border: 1px solid var(--border-strong); border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow);
}
.beta-price {
  background: linear-gradient(160deg, #241511, #1a1119);
  padding: 44px 36px; display: flex; flex-direction: column; justify-content: center;
  border-right: 1px solid var(--border);
}
.beta-label { display: inline-block; align-self: flex-start; font-size: 0.82rem; font-weight: 700; color: var(--accent-2); background: var(--accent-soft); padding: 5px 13px; border-radius: 999px; margin-bottom: 18px; }
.beta-anchor .was { text-decoration: line-through; color: var(--text-3); font-size: 1.05rem; }
.beta-now { font-size: 2.6rem; font-weight: 800; margin: 4px 0; }
.beta-now strong { color: var(--accent); }
.beta-cond { color: var(--text-2); font-size: 0.95rem; }
.beta-detail { background: var(--surface); padding: 44px 40px; }
.beta-list { list-style: none; padding: 0; margin: 0 0 26px; display: grid; gap: 16px; }
.beta-list li { color: var(--text-2); font-size: 0.98rem; padding-left: 26px; position: relative; }
.beta-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 800; }
.beta-list strong { color: var(--text); }
.beta-list a { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; }

/* ===== FAQ ===== */
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
  overflow: hidden; transition: border-color 0.2s var(--ease);
}
.faq-item[open] { border-color: var(--border-strong); }
.faq-item summary {
  cursor: pointer; list-style: none; padding: 20px 24px; font-weight: 600; font-size: 1.06rem;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-size: 1.5rem; color: var(--accent); font-weight: 400;
  transition: transform 0.25s var(--ease); line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-body { padding: 0 24px 22px; }
.faq-body p { color: var(--text-2); font-size: 0.99rem; }
.faq-body strong { color: var(--text); }

/* ===== 신청 폼 ===== */
.form-shell {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 40px; box-shadow: var(--shadow);
}
.field { margin-bottom: 22px; }
.field > label, .field-legend { display: block; font-weight: 600; font-size: 0.98rem; margin-bottom: 9px; }
.req { color: var(--accent); }
.opt { color: var(--text-3); font-weight: 400; font-size: 0.88rem; }
.field-help { font-size: 0.86rem; color: var(--text-3); margin-top: 8px; }
.field-help strong { color: var(--text-2); }

input[type="text"], input[type="email"], input[type="url"], select, textarea {
  width: 100%; font-family: inherit; font-size: 1rem; color: var(--text);
  background: var(--bg-3); border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  padding: 13px 15px; transition: border-color 0.15s, box-shadow 0.15s;
}
textarea { resize: vertical; min-height: 84px; }
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
input::placeholder, textarea::placeholder { color: var(--text-3); }
select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%238b8798' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2 4l5 6 5-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 15px center; padding-right: 40px;
}
input.invalid, select.invalid, textarea.invalid { border-color: #ff5b5b; box-shadow: 0 0 0 3px rgba(255, 91, 91, 0.15); }

/* honeypot 숨김 */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* 라디오 카드 */
.radio-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.radio-card { position: relative; cursor: pointer; }
.radio-card input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.rc-body {
  display: block; padding: 16px 16px; border: 1.5px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--bg-3); transition: border-color 0.15s, background 0.15s, transform 0.15s;
}
.radio-card:hover .rc-body { border-color: var(--text-3); }
.radio-card input:checked + .rc-body { border-color: var(--accent); background: var(--accent-soft); }
.radio-card input:focus-visible + .rc-body { box-shadow: 0 0 0 3px var(--accent-soft); }
.rc-emoji { font-size: 1.4rem; display: block; margin-bottom: 6px; }
.rc-title { font-weight: 700; display: block; }
.rc-meta { font-size: 0.82rem; color: var(--text-3); display: block; margin-top: 2px; }

.length-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.length-row select { max-width: 220px; }
.length-fixed { font-size: 0.9rem; color: var(--accent-2); font-weight: 600; }
select:disabled { opacity: 0.5; cursor: not-allowed; }

.check-row { display: flex; align-items: flex-start; gap: 10px; font-weight: 400; font-size: 0.98rem; color: var(--text-2); cursor: pointer; margin-bottom: 10px; }
.check-row input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--accent); flex-shrink: 0; }
.required-check { margin-top: 4px; }
.inline-link { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; }

.form-error {
  background: rgba(255, 91, 91, 0.12); border: 1px solid rgba(255, 91, 91, 0.4); color: #ff9c9c;
  padding: 12px 16px; border-radius: var(--radius-sm); font-size: 0.94rem; margin-bottom: 16px;
}
.form-foot { text-align: center; color: var(--text-3); font-size: 0.88rem; margin-top: 14px; }

/* 성공 메시지 */
.form-success { text-align: center; padding: 26px 10px; }
.success-icon {
  width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 22px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-soft); color: var(--accent);
}
.form-success h3 { font-size: 1.5rem; margin-bottom: 12px; }
.form-success p { color: var(--text-2); }

/* ===== 푸터 ===== */
.site-footer { background: var(--bg-2); border-top: 1px solid var(--border); padding: 54px 0 40px; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between; }
.footer-brand .brand-name { font-size: 1.15rem; font-weight: 800; }
.footer-en { color: var(--text-3); font-weight: 600; font-size: 0.9rem; }
.footer-tag { color: var(--text-3); font-size: 0.92rem; margin-top: 6px; }
.footer-nav { display: flex; gap: 24px; }
.footer-nav a { color: var(--text-2); font-size: 0.95rem; transition: color 0.15s; }
.footer-nav a:hover { color: var(--accent-2); }
.footer-copy { width: 100%; color: var(--text-3); font-size: 0.85rem; padding-top: 20px; margin-top: 8px; border-top: 1px solid var(--border); }

/* ===== 스크롤 진입 애니메이션 ===== */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ===== 개인정보 페이지 ===== */
.legal { padding: 60px 0 90px; }
.legal h1 { font-size: clamp(1.7rem, 4vw, 2.3rem); margin-bottom: 10px; }
.legal .updated { color: var(--text-3); font-size: 0.9rem; margin-bottom: 40px; }
.legal h2 { font-size: 1.25rem; margin: 36px 0 12px; }
.legal p, .legal li { color: var(--text-2); font-size: 1rem; }
.legal ul { padding-left: 20px; margin: 10px 0; }
.legal li { margin-bottom: 6px; }
.legal table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 0.95rem; }
.legal th, .legal td { border: 1px solid var(--border); padding: 11px 14px; text-align: left; color: var(--text-2); }
.legal th { background: var(--surface); color: var(--text); font-weight: 600; }
.legal a { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; }
.back-link { display: inline-flex; align-items: center; gap: 6px; color: var(--text-3); font-size: 0.92rem; margin-bottom: 30px; }
.back-link:hover { color: var(--text); }

/* ===== 반응형 ===== */
@media (max-width: 900px) {
  .pain-grid, .steps { grid-template-columns: 1fr; }
  .format-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-grid { grid-template-columns: 1fr; }
  .beta-card { grid-template-columns: 1fr; }
  .beta-price { border-right: none; border-bottom: 1px solid var(--border); }
}

@media (max-width: 640px) {
  .section { padding: 68px 0; }
  .hero { padding: 68px 0 60px; }
  .header-nav { gap: 14px; }
  .header-nav a:not(.btn) { display: none; }
  .form-shell { padding: 26px 20px; }
  .radio-cards { grid-template-columns: 1fr; }
  .format-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .btn-lg { padding: 14px 24px; font-size: 1rem; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
}