:root {
  --orange: #FFB347;
  --coral: #FF6B6B;
  --green: #52B788;
  --blue: #4EA8DE;
  --bg: #FFF8F0;
  --white: #FFFFFF;
  --text: #222222;
  --muted: #888888;
  --border: #F0E6D3;
  --border2: #E8DDD0;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Nunito', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── 배경 블롭 ── */
.blob {
  position: fixed; border-radius: 50%;
  filter: blur(90px); opacity: 0.28; pointer-events: none; z-index: 0;
}
.b1 { width: 480px; height: 480px; background: #FFD6A5; top: -120px; right: -80px; animation: drift1 14s ease-in-out infinite alternate; }
.b2 { width: 360px; height: 360px; background: #CAFFBF; bottom: 5%; left: -80px; animation: drift2 17s ease-in-out infinite alternate; }
.b3 { width: 220px; height: 220px; background: #BDE0FE; top: 42%; left: 48%; animation: drift1 11s ease-in-out infinite alternate-reverse; }
@keyframes drift1 { from { transform: translate(0,0) scale(1); } to { transform: translate(28px,38px) scale(1.08); } }
@keyframes drift2 { from { transform: translate(0,0); } to { transform: translate(-18px,-28px) scale(1.06); } }

/* ── 네비 ── */
nav {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 40px;
  background: rgba(255,248,240,0.88); backdrop-filter: blur(18px);
  border-bottom: 1.5px solid rgba(240,230,211,0.65);
  animation: fadeDown 0.5s ease both;
}
.nav-logo { font-family: 'Gaegu', cursive; font-size: 21px; font-weight: 700; color: var(--text); }
.nav-cta {
  padding: 9px 22px; border-radius: 50px;
  background: linear-gradient(135deg, var(--orange), var(--coral));
  color: white; font-family: 'Nunito', sans-serif; font-size: 14px; font-weight: 800;
  border: none; cursor: pointer; box-shadow: 0 4px 14px rgba(255,107,107,0.3);
  transition: all 0.2s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(255,107,107,0.4); }

/* ── 페이지 공통 ── */
.page { position: relative; z-index: 1; display: none; }
.page.active { display: block; }

/* ── 랜딩 ── */
.hero {
  max-width: 880px; margin: 0 auto; padding: 90px 24px 70px; text-align: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: white; border: 2px solid var(--border2); border-radius: 50px;
  padding: 7px 20px; font-size: 13px; font-weight: 800; color: var(--muted);
  box-shadow: 3px 3px 0 var(--border); margin-bottom: 26px;
  animation: fadeDown 0.6s ease both 0.05s;
}
.hero-badge span { color: var(--orange); }
.hero-title {
  font-family: 'Gaegu', cursive; font-size: clamp(42px, 8vw, 76px); font-weight: 700;
  line-height: 1.15; margin-bottom: 22px;
  animation: fadeUp 0.7s ease both 0.1s;
}
.hero-title .hl {
  background: linear-gradient(120deg, var(--orange), var(--coral));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-title .ul { position: relative; display: inline-block; }
.hero-title .ul::after {
  content: ''; position: absolute; bottom: 3px; left: 0; right: 0;
  height: 6px; background: #CAFFBF; border-radius: 3px; z-index: -1;
  animation: expand 0.8s ease both 0.6s; transform-origin: left; transform: scaleX(0);
}
@keyframes expand { to { transform: scaleX(1); } }
.hero-sub {
  font-size: 18px; font-weight: 600; color: var(--muted); line-height: 1.7;
  max-width: 520px; margin: 0 auto 40px;
  animation: fadeUp 0.7s ease both 0.18s;
}
.hero-btns {
  display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap;
  animation: fadeUp 0.7s ease both 0.25s;
}
.btn-primary {
  display: flex; align-items: center; gap: 8px; padding: 15px 36px; border-radius: 50px;
  background: linear-gradient(135deg, var(--orange), var(--coral)); color: white;
  font-family: 'Gaegu', cursive; font-size: 20px; font-weight: 700; border: none; cursor: pointer;
  box-shadow: 0 6px 24px rgba(255,107,107,0.35); transition: all 0.25s;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(255,107,107,0.45); }
.social-proof {
  display: flex; align-items: center; justify-content: center; gap: 18px; flex-wrap: wrap;
  margin-top: 44px; animation: fadeUp 0.7s ease both 0.35s;
}
.proof-item { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; color: var(--muted); }
.proof-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--border2); }

/* preview card */
.preview-wrap { max-width: 780px; margin: 0 auto 80px; padding: 0 24px; animation: fadeUp 0.8s ease both 0.4s; }
.preview-card {
  background: white; border-radius: 28px; border: 2px solid var(--border);
  box-shadow: 8px 8px 0 var(--border), 0 20px 60px rgba(0,0,0,0.05); overflow: hidden;
}
.preview-bar {
  background: linear-gradient(135deg, #FFF3E0, #FFF8F0);
  border-bottom: 2px solid var(--border); padding: 13px 22px;
  display: flex; align-items: center; gap: 7px;
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dr { background: var(--coral); } .dy { background: var(--orange); } .dg { background: var(--green); }
.preview-body { padding: 24px 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.p-label { font-size: 11px; font-weight: 800; color: #CCC; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 9px; }
.p-field { background: #FDFAF6; border: 2px solid var(--border); border-radius: 11px; padding: 10px 13px; font-size: 13px; font-weight: 600; color: #888; margin-bottom: 9px; }
.p-field.act { border-color: var(--orange); background: white; color: var(--text); }
.p-tags { display: flex; gap: 7px; flex-wrap: wrap; }
.p-tag { padding: 5px 12px; border-radius: 50px; font-size: 12px; font-weight: 700; border: 2px solid var(--border); color: #AAA; }
.p-tag.s1 { background: var(--orange); border-color: var(--orange); color: white; }
.p-tag.s2 { background: var(--green); border-color: var(--green); color: white; }
.p-out { border-left: 2px dashed var(--border); padding-left: 20px; }
.skel-line { height: 10px; border-radius: 5px; background: #F0E6D3; margin-bottom: 8px; animation: shimmer 2s infinite; }
.skel-line.h { height: 13px; background: #FFD6A5; }
@keyframes shimmer { 0%,100%{opacity:0.6} 50%{opacity:1} }

/* features */
.features { max-width: 880px; margin: 0 auto 80px; padding: 0 24px; }
.sec-eye { text-align: center; font-size: 12px; font-weight: 800; color: var(--orange); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 10px; }
.sec-title { font-family: 'Gaegu', cursive; font-size: clamp(26px, 5vw, 40px); font-weight: 700; text-align: center; margin-bottom: 40px; line-height: 1.2; }
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feat-card {
  background: white; border: 2px solid var(--border); border-radius: 22px; padding: 26px 22px;
  box-shadow: 4px 4px 0 var(--border); transition: all 0.22s;
}
.feat-card:hover { transform: translateY(-4px); box-shadow: 6px 8px 0 var(--border); }
.feat-icon { width: 50px; height: 50px; border-radius: 15px; display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 14px; }
.fi-o { background: #FFF3E0; } .fi-g { background: #E8F8F0; } .fi-b { background: #EDF6FF; }
.fi-p { background: #FFF0F5; } .fi-y { background: #FFFBE6; } .fi-v { background: #F3EEFF; }
.feat-title { font-size: 15px; font-weight: 800; color: var(--text); margin-bottom: 7px; }
.feat-desc { font-size: 13px; font-weight: 600; color: var(--muted); line-height: 1.6; }

/* how */
.how { max-width: 780px; margin: 0 auto 80px; padding: 0 24px; }
.steps-row { display: grid; grid-template-columns: repeat(3, 1fr); position: relative; }
.steps-row::before {
  content: ''; position: absolute; top: 34px;
  left: calc(16.6% + 14px); right: calc(16.6% + 14px);
  height: 2px; background: linear-gradient(90deg, var(--orange), var(--coral)); z-index: 0;
}
.how-step { text-align: center; padding: 0 14px; position: relative; z-index: 1; }
.how-num {
  width: 68px; height: 68px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-family: 'Gaegu', cursive; font-size: 26px; font-weight: 700; margin: 0 auto 16px;
  border: 3px solid white; box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.hn1 { background: linear-gradient(135deg, var(--orange), var(--coral)); color: white; }
.hn2 { background: linear-gradient(135deg, var(--green), #38A169); color: white; }
.hn3 { background: linear-gradient(135deg, var(--blue), #3182CE); color: white; }
.how-t { font-size: 15px; font-weight: 800; margin-bottom: 7px; }
.how-d { font-size: 13px; font-weight: 600; color: var(--muted); line-height: 1.6; }

/* cta section */
.cta-sec { max-width: 660px; margin: 0 auto 70px; padding: 0 24px; }
.cta-card {
  background: linear-gradient(135deg, #FFF3E0, #FFE8E8);
  border: 2px solid #FFD6A5; border-radius: 30px;
  padding: 52px 44px; text-align: center; box-shadow: 8px 8px 0 #FFD6A5;
}
.cta-emoji { font-size: 50px; margin-bottom: 14px; display: block; }
.cta-title { font-family: 'Gaegu', cursive; font-size: clamp(26px, 5vw, 38px); font-weight: 700; margin-bottom: 12px; }
.cta-sub { font-size: 15px; font-weight: 600; color: var(--muted); margin-bottom: 28px; }

/* ── 입력 폼 ── */
.form-wrap { max-width: 700px; margin: 0 auto; padding: 48px 24px 80px; }
.form-header { text-align: center; margin-bottom: 36px; animation: fadeDown 0.5s ease both; }
.form-title { font-family: 'Gaegu', cursive; font-size: 38px; font-weight: 700; margin-bottom: 8px; }
.form-sub { font-size: 15px; font-weight: 600; color: var(--muted); }

/* step bar */
.step-bar { display: flex; flex-direction: column; align-items: center; margin-bottom: 28px; }
.step-dots { display: flex; align-items: center; gap: 8px; }
.s-dot {
  width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 800; border: 2px solid var(--border2); color: #BBB; background: white;
}
.s-dot.active { background: var(--orange); border-color: var(--orange); color: white; box-shadow: 0 0 0 4px rgba(255,179,71,0.2); }
.s-dot.done { background: #CAFFBF; border-color: var(--green); color: var(--green); }
.s-line { width: 40px; height: 2px; background: var(--border2); border-radius: 2px; }
.s-line.done { background: var(--green); }
.step-labels { display: flex; gap: 56px; margin-top: 6px; }
.s-lbl { font-size: 11px; color: #AAA; font-weight: 800; }
.s-lbl.active { color: var(--orange); }
.s-lbl.done { color: var(--green); }

.form-card {
  background: white; border-radius: 26px; border: 2px solid var(--border);
  padding: 32px; box-shadow: 6px 6px 0 var(--border); animation: fadeUp 0.6s ease both 0.1s;
}
.f-label { font-size: 12px; font-weight: 800; color: #AAA; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 10px; display: block; }
.toggle-group { display: flex; gap: 9px; flex-wrap: wrap; margin-bottom: 22px; }
.tog {
  padding: 9px 18px; border-radius: 50px; border: 2px solid var(--border2);
  background: white; font-family: 'Nunito', sans-serif; font-size: 13px; font-weight: 700;
  color: #888; cursor: pointer; transition: all 0.18s;
}
.tog:hover { border-color: var(--orange); color: var(--orange); }
.tog.sel-o { background: var(--orange); border-color: var(--orange); color: white; }
.tog.sel-g { background: var(--green); border-color: var(--green); color: white; }
.tog.sel-b { background: var(--blue); border-color: var(--blue); color: white; }
.divider { height: 1px; background: var(--border); margin: 20px 0; }
.f-textarea {
  width: 100%; padding: 14px 18px; border-radius: 15px; border: 2px solid var(--border2);
  font-family: 'Nunito', sans-serif; font-size: 14px; font-weight: 600; color: var(--text);
  background: #FDFAF6; outline: none; resize: none; transition: all 0.18s;
}
.f-textarea:focus { border-color: var(--orange); background: white; box-shadow: 0 0 0 4px rgba(255,179,71,0.12); }
.f-textarea::placeholder { color: #CCC; }
.len-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; margin-bottom: 22px; }
.len-card {
  border: 2px solid var(--border2); border-radius: 15px; padding: 13px 8px;
  text-align: center; cursor: pointer; transition: all 0.18s; background: white;
}
.len-card:hover { border-color: var(--orange); transform: translateY(-1px); }
.len-card.sel { border-color: var(--coral); background: #FFF0F0; box-shadow: 0 4px 12px rgba(255,107,107,0.2); }
.len-num { font-family: 'Gaegu', cursive; font-size: 20px; font-weight: 700; color: var(--text); display: block; }
.len-card.sel .len-num { color: var(--coral); }
.len-unit { font-size: 11px; color: #AAA; font-weight: 700; }

/* 옵션 토글 */
.opt-toggle { display: flex; align-items: center; gap: 7px; cursor: pointer; margin-bottom: 14px; width: fit-content; }
.opt-toggle span { font-size: 12px; font-weight: 800; color: #AAA; letter-spacing: 0.08em; text-transform: uppercase; }
.opt-arrow { font-size: 10px; color: #CCC; transition: transform 0.2s; }
.opt-arrow.open { transform: rotate(90deg); }
.opt-content { display: none; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 18px; }
.opt-content.show { display: grid; }
.f-select {
  width: 100%; padding: 11px 34px 11px 14px; border-radius: 13px; border: 2px solid var(--border2);
  font-family: 'Nunito', sans-serif; font-size: 13px; font-weight: 600; color: #555;
  background: #FDFAF6; appearance: none; cursor: pointer; outline: none; transition: all 0.18s;
}
.f-select:focus { border-color: var(--orange); background: white; }
.sel-wrap { position: relative; }
.sel-arrow { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); pointer-events: none; font-size: 11px; color: #BBB; }

.submit-btn {
  width: 100%; padding: 17px; border-radius: 17px; border: none;
  background: linear-gradient(135deg, var(--orange), var(--coral));
  color: white; font-family: 'Gaegu', cursive; font-size: 21px; font-weight: 700;
  cursor: pointer; transition: all 0.22s; box-shadow: 0 4px 20px rgba(255,107,107,0.35);
  display: flex; align-items: center; justify-content: center; gap: 9px; margin-top: 6px;
}
.submit-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(255,107,107,0.45); }
.submit-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ── 결과 페이지 ── */
.result-wrap { max-width: 760px; margin: 0 auto; padding: 36px 24px 80px; }
.back-btn {
  display: flex; align-items: center; gap: 6px; background: white;
  border: 2px solid var(--border2); border-radius: 50px; padding: 8px 16px;
  font-family: 'Nunito', sans-serif; font-size: 13px; font-weight: 700; color: #888;
  cursor: pointer; transition: all 0.18s; box-shadow: 2px 2px 0 var(--border); margin-bottom: 22px;
  width: fit-content;
}
.back-btn:hover { border-color: var(--orange); color: var(--orange); }
.meta-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.meta-tag {
  background: white; border: 2px solid var(--border); border-radius: 50px;
  padding: 4px 13px; font-size: 12px; font-weight: 700; color: var(--muted);
}
.result-card {
  background: white; border-radius: 26px; border: 2px solid var(--border);
  box-shadow: 6px 6px 0 var(--border); overflow: hidden; margin-bottom: 18px;
}
.result-header {
  background: linear-gradient(135deg, #FFF3E0, #FFF8F0);
  border-bottom: 2px solid var(--border); padding: 22px 28px;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 14px;
}
.r-label { font-size: 11px; font-weight: 800; color: var(--orange); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 5px; }
.r-title { font-family: 'Gaegu', cursive; font-size: 24px; font-weight: 700; color: var(--text); line-height: 1.25; }
.r-badge {
  flex-shrink: 0; border-radius: 15px; padding: 10px 14px; text-align: center; color: white;
  box-shadow: 0 4px 12px rgba(255,107,107,0.28);
  background: linear-gradient(135deg, var(--orange), var(--coral));
  transition: background 0.3s;
}
.r-badge.done { background: linear-gradient(135deg, var(--green), #38A169); }
.r-badge-icon { font-size: 20px; display: block; }
.r-badge-lbl { font-size: 10px; font-weight: 800; opacity: 0.9; letter-spacing: 0.05em; }
.essay-body { padding: 28px; max-height: 460px; overflow-y: auto; }
.essay-body::-webkit-scrollbar { width: 5px; }
.essay-body::-webkit-scrollbar-thumb { background: #F0D9BE; border-radius: 3px; }
.essay-text { font-family: 'Noto Serif KR', serif; font-size: 14px; line-height: 1.95; color: var(--text); white-space: pre-wrap; }
.cursor {
  display: inline-block; width: 2px; height: 1em;
  background: var(--orange); margin-left: 2px; vertical-align: text-bottom;
  animation: blink 0.8s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }
.skel-box { padding: 28px; }
.sk { height: 12px; border-radius: 6px; background: #F0E6D3; margin-bottom: 10px; animation: sk-anim 1.5s ease infinite; }
@keyframes sk-anim { 0%,100%{opacity:0.55} 50%{opacity:1} }
.action-bar { border-top: 2px solid var(--border); padding: 18px 28px; display: flex; gap: 9px; flex-wrap: wrap; }
.act-btn {
  display: flex; align-items: center; gap: 6px; padding: 10px 18px; border-radius: 50px;
  border: 2px solid var(--border2); background: white; font-family: 'Nunito', sans-serif;
  font-size: 13px; font-weight: 700; color: #777; cursor: pointer; transition: all 0.18s;
}
.act-btn:hover { border-color: var(--orange); color: var(--orange); transform: translateY(-1px); }
.act-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.act-btn.prim {
  background: linear-gradient(135deg, var(--orange), var(--coral));
  border-color: transparent; color: white; box-shadow: 0 4px 14px rgba(255,107,107,0.3);
}
.act-btn.prim:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(255,107,107,0.4); color: white; border-color: transparent; }
.act-btn.copied { background: #CAFFBF; border-color: var(--green); color: var(--green); }
.act-btn.stop-btn { background: #FFF0F0; border-color: #FFB3B3; color: #E53E3E; }
.error-box {
  margin: 16px 28px; padding: 14px 18px; background: #FFF0F0;
  border: 2px solid #FFB3B3; border-radius: 14px; font-size: 13px; font-weight: 700; color: #E53E3E;
}
.regen-card {
  background: white; border: 2px solid var(--border); border-radius: 18px;
  padding: 18px 22px; display: flex; align-items: center; justify-content: space-between; gap: 14px;
  box-shadow: 4px 4px 0 var(--border);
}
.regen-title { font-size: 14px; font-weight: 800; color: var(--text); margin-bottom: 2px; }
.regen-sub { font-size: 12px; color: var(--muted); font-weight: 600; }
.regen-btn {
  flex-shrink: 0; padding: 10px 20px; border-radius: 50px;
  border: 2px solid #BDE0FE; background: #EDF6FF;
  font-family: 'Nunito', sans-serif; font-size: 13px; font-weight: 700; color: var(--blue);
  cursor: pointer; transition: all 0.18s; white-space: nowrap;
}
.regen-btn:hover { background: var(--blue); color: white; border-color: var(--blue); transform: translateY(-1px); }

/* 광고 영역 */
.ad-area {
  margin-top: 24px; background: #F8F3ED; border: 2px dashed var(--border2);
  border-radius: 14px; padding: 18px; text-align: center;
}
.ad-lbl { font-size: 10px; font-weight: 700; color: #CCC; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 7px; }
.ad-box { height: 72px; display: flex; align-items: center; justify-content: center; color: #DDD; font-size: 12px; font-weight: 600; }

/* ── 푸터 ── */
footer {
  position: relative; z-index: 1; border-top: 2px solid var(--border); padding: 22px 40px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.footer-logo { font-family: 'Gaegu', cursive; font-size: 15px; font-weight: 700; color: #AAA; }
.footer-links { display: flex; gap: 18px; }
.footer-link { font-size: 12px; font-weight: 700; color: #CCC; text-decoration: none; transition: color 0.18s; }
.footer-link:hover { color: var(--orange); }
.footer-copy { font-size: 11px; color: #CCC; font-weight: 600; }

/* 애니메이션 */
@keyframes fadeDown { from { opacity:0; transform: translateY(-16px); } to { opacity:1; transform: translateY(0); } }
@keyframes fadeUp { from { opacity:0; transform: translateY(22px); } to { opacity:1; transform: translateY(0); } }

/* 반응형 */
@media (max-width: 640px) {
  nav { padding: 12px 18px; }
  .hero { padding: 55px 18px 44px; }
  .preview-body { grid-template-columns: 1fr; }
  .feat-grid { grid-template-columns: 1fr; }
  .steps-row { grid-template-columns: 1fr; gap: 28px; }
  .steps-row::before { display: none; }
  .cta-card { padding: 32px 20px; }
  .len-grid { grid-template-columns: repeat(2, 1fr); }
  .opt-content { grid-template-columns: 1fr; }
  footer { flex-direction: column; text-align: center; }
  .regen-card { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 820px) and (min-width: 641px) {
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
}