/* Doppia — shared design system (landing 톤 통일) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Sora:wght@600;700;800&display=swap');

*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#07070c; --bg2:#0c0c14; --surface:#13131d; --surface2:#1a1a27;
  --border:rgba(255,255,255,.08); --border2:rgba(255,255,255,.14);
  --text:#edecf5; --dim:#9a9ab2; --faint:#6a6a85;
  --accent:#6a40e0; --accent2:#a394ee; --pink:#d9608f; --cyan:#5ee0d6; --gold:#ffce7a;
  --r:18px;
}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:rgba(124,108,255,.35)}
a{text-decoration:none;color:inherit}

/* ambient mesh */
.mesh{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.45;animation:float 18s ease-in-out infinite}
.blob.b1{width:520px;height:520px;background:radial-gradient(circle,#7c6cff,transparent 70%);top:-180px;left:-140px}
.blob.b2{width:460px;height:460px;background:radial-gradient(circle,#ff7eb6,transparent 70%);top:60px;right:-160px;animation-delay:-6s}
.blob.b3{width:400px;height:400px;background:radial-gradient(circle,#5ee0d6,transparent 70%);bottom:-120px;left:25%;opacity:.25;animation-delay:-11s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(30px,-40px) scale(1.08)}}
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.03;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* nav */
nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(18px);background:rgba(7,7,12,.6);border-bottom:1px solid var(--border)}
.nav-in{max-width:1180px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}
.brand{font-family:'Sora';font-weight:800;font-size:18px;letter-spacing:-.5px;display:flex;align-items:center;gap:9px;cursor:pointer;white-space:nowrap}
.brand .dot{width:11px;height:11px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--pink));box-shadow:0 0 14px var(--accent);flex-shrink:0}
.brand b{font-weight:800;background:linear-gradient(120deg,#fff,var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.brand .sfx{color:var(--dim);font-weight:700}
@media(max-width:600px){
  .brand .sfx{display:none}
  .nav-in{padding:11px 14px;gap:8px}
  .credits{padding:6px 11px;font-size:12px;gap:6px}
}
.nav-links{display:flex;gap:28px}
.nav-links a{font-size:14px;color:var(--dim);font-weight:500;transition:color .2s;cursor:pointer}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
@media(max-width:760px){.nav-links{display:none}}

/* 좌측 아이콘 레일 (전 앱 페이지 공유 — rail.js가 주입, body.has-rail 토글) */
.rail{position:fixed;left:14px;top:14px;bottom:14px;width:64px;z-index:60;display:flex;flex-direction:column;align-items:center;gap:8px;padding:14px 0;background:rgba(10,10,16,.72);backdrop-filter:blur(18px);border:1px solid var(--border);border-radius:18px;box-shadow:0 24px 60px -22px rgba(0,0,0,.6)}
.rail-brand{cursor:pointer;margin-bottom:10px;display:flex;align-items:center;justify-content:center}
.rail-brand img{width:44px;height:44px;border-radius:12px;display:block}
.rail-nav{display:flex;flex-direction:column;gap:4px;width:100%;align-items:center}
.rail-item{display:flex;flex-direction:column;align-items:center;gap:4px;width:52px;padding:9px 0;border-radius:12px;color:var(--dim);cursor:pointer;transition:background .15s,color .15s;font-size:9.5px;font-weight:600;letter-spacing:-.2px;border:none;background:none;text-align:center}
.rail-item svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.rail-item:hover{color:var(--text);background:rgba(255,255,255,.05)}
.rail-item.active{color:#fff;background:rgba(124,108,255,.16)}
body.has-rail{padding-left:92px}
body.has-rail nav{background:none;border-bottom:none;backdrop-filter:none;position:absolute;left:0;right:0;pointer-events:none}
body.has-rail nav .brand,body.has-rail nav .nav-links{display:none}
body.has-rail nav .nav-in{justify-content:flex-end}
/* 레일 레이아웃에서 nav가 absolute(전체폭)로 떠 본문 상단(예: studio 모드 탭)의 클릭을 가로채던 문제 — 빈 nav는 클릭 통과, 실제 콘텐츠만 수신 */
body.has-rail nav .nav-in>*{pointer-events:auto}
/* 레일 하단: 크레딧 칩 + 계정 아바타 (rail.js가 상단 nav에서 이동) */
.rail-foot{margin-top:auto;display:flex;flex-direction:column;align-items:center;gap:9px;width:100%;padding-top:12px;border-top:1px solid var(--border)}
.rail-foot .credits:not(#saasUserBox){flex-wrap:wrap;justify-content:center;gap:2px 4px;width:52px;padding:7px 4px;border-radius:12px;font-size:11px;line-height:1.2;text-align:center}
.rail-foot .credits:not(#saasUserBox) #creditCtxLabel{display:none}
.rail-foot .credits:not(#saasUserBox) .buy{flex-basis:100%;border-left:none;border-top:1px solid var(--border);margin:3px 0 0;padding:4px 0 0;font-size:10px}
.rail-foot .acct-caret{display:none}
.rail-foot .acct-menu{left:calc(100% + 14px);right:auto;top:auto;bottom:0}
@media(max-width:760px){
  .rail{flex-direction:row;width:auto;left:0;right:0;bottom:0;top:auto;height:60px;border:none;border-top:1px solid var(--border);border-radius:0;box-shadow:none;justify-content:space-around;padding:0;gap:0}
  .rail-brand{display:none}
  .rail-nav{flex-direction:row}
  .rail-item{width:auto;padding:8px 12px;font-size:10px}
  body.has-rail{padding-left:0;padding-bottom:60px}
  .rail-foot{margin-top:0;flex-direction:row;border-top:none;padding-top:0;width:auto;gap:8px}
  .rail-foot .credits:not(#saasUserBox){flex-wrap:nowrap;width:auto;padding:6px 11px;font-size:12px}
  .rail-foot .credits:not(#saasUserBox) .buy{flex-basis:auto;border-top:none;border-left:1px solid var(--border);margin:0 0 0 2px;padding:0 0 0 10px}
  .rail-foot .acct-menu{left:auto;right:0;bottom:calc(100% + 10px);top:auto}
}

/* buttons */
.btn{font-family:inherit;font-weight:600;font-size:14px;border-radius:12px;cursor:pointer;border:none;transition:all .2s;display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap}
.btn-ghost{background:transparent;color:var(--text);padding:10px 16px;border:1px solid var(--border2)}
.btn-ghost:hover{background:rgba(255,255,255,.06)}
.btn-primary{background:linear-gradient(180deg,#7c52e8,#5c33c2);color:#fff;padding:11px 20px;box-shadow:0 4px 14px -4px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.13)}
.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 9px 24px -6px rgba(0,0,0,.6),inset 0 1px 0 rgba(255,255,255,.18)}
.btn-primary:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}
.btn-lg{padding:14px 26px;font-size:15px;border-radius:14px}

/* glass surfaces */
.glass{background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));border:1px solid var(--border);border-radius:var(--r)}
.glass:hover{border-color:var(--border2)}

/* credits chip */
.credits{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.04);border:1px solid var(--border);padding:7px 14px;border-radius:30px;font-size:13px;font-weight:600}
.credits .coin{color:var(--gold)}
.credits .buy{color:var(--accent2);cursor:pointer;font-size:12px;border-left:1px solid var(--border);padding-left:10px;margin-left:2px}
/* 계정 — 아바타 버튼 + 프로필/세팅 드롭다운 (Logout은 메뉴 안으로 이동) */
#saasUserBox{position:relative;background:none!important;border:none!important;padding:0!important}
.acct-btn{display:inline-flex;align-items:center;gap:5px;background:none;border:none;cursor:pointer;padding:3px 4px;border-radius:30px;transition:background .2s}
.acct-btn:hover{background:rgba(255,255,255,.06)}
.acct-ava{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--pink));color:#fff;font-weight:700;font-size:13px;display:flex;align-items:center;justify-content:center;flex-shrink:0;line-height:1}
.acct-caret{color:var(--faint);font-size:10px}
.acct-menu{position:absolute;top:calc(100% + 10px);right:0;min-width:248px;background:var(--surface);border:1px solid var(--border2);border-radius:14px;padding:8px;box-shadow:0 24px 60px -16px rgba(0,0,0,.7);display:none;z-index:60}
#saasUserBox.open .acct-menu{display:block}
.acct-id{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px}
.acct-id:hover{background:rgba(255,255,255,.05)}
.acct-ava.lg{width:38px;height:38px;font-size:15px}
.acct-meta{flex:1;min-width:0}
.acct-name{font-size:13.5px;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.acct-plan{font-size:12px;color:var(--dim);margin-top:1px}
.acct-check{color:var(--accent2);font-size:14px;flex-shrink:0}
.acct-sep{height:1px;background:var(--border);margin:6px 4px}
.acct-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:none;border:none;color:var(--dim);font-family:inherit;font-size:13px;font-weight:500;padding:9px 10px;border-radius:9px;cursor:pointer;text-decoration:none;box-sizing:border-box}
.acct-item:hover{background:rgba(255,255,255,.06);color:var(--text)}
.acct-item svg{width:16px;height:16px;flex-shrink:0;opacity:.85}
.acct-logout{color:var(--faint)}
.acct-logout:hover{color:var(--pink);background:rgba(255,126,182,.08)}
.acct-foot{padding:9px 10px 5px;margin-top:4px;border-top:1px solid var(--border);font-size:12px;color:var(--faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* gradient tiles */
.g1{background:linear-gradient(150deg,#ffce7a,#ff7eb6)}.g2{background:linear-gradient(150deg,#7c6cff,#5ee0d6)}
.g3{background:linear-gradient(150deg,#ff7eb6,#7c6cff)}.g4{background:linear-gradient(150deg,#5ee0d6,#7c6cff)}
.g5{background:linear-gradient(150deg,#ffce7a,#ff5f8f)}.g6{background:linear-gradient(150deg,#a99bff,#ff7eb6)}
.g7{background:linear-gradient(150deg,#5ee0d6,#9b7bff)}.g8{background:linear-gradient(150deg,#ff9a6b,#ffce7a)}

/* entrance */
.fade{opacity:0;transform:translateY(20px);animation:fadeUp .8s cubic-bezier(.2,.7,.3,1) forwards}
.d1{animation-delay:.05s}.d2{animation-delay:.13s}.d3{animation-delay:.22s}.d4{animation-delay:.32s}
@keyframes fadeUp{to{opacity:1;transform:none}}
.hidden{display:none!important}