:root{
  --bg: #f5f7ff;
  --card: rgba(255,255,255,0.92);
  --text: #101828;
  --muted: #667085;
  --primary: #6c63ff;
  --primary2: #5ac8fa;
  --border: rgba(16,24,40,0.08);
  --shadow: 0 10px 30px rgba(16,24,40,0.08);
  --radius: 18px;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "NoonnuBasicGothic", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-weight: 400;
}

body{
  position: relative;
  overflow-x: hidden;
}

body::before{
  content:"";
  position: fixed;
  inset: -24vh -18vw;
  z-index: -1;
  background:
    radial-gradient(52vw 40vh at 12% 16%, rgba(184, 209, 255, 0.30), transparent 58%),
    radial-gradient(48vw 42vh at 82% 12%, rgba(206, 198, 255, 0.28), transparent 60%),
    radial-gradient(45vw 38vh at 70% 72%, rgba(198, 236, 255, 0.22), transparent 60%),
    radial-gradient(42vw 34vh at 18% 82%, rgba(230, 221, 255, 0.18), transparent 58%);
  filter: blur(18px);
  pointer-events: none;
}

.lv-book img.lv-hidden{
  display:none;
}

@font-face{
  font-family: "NoonnuBasicGothic";
  src: url("../fonts/noonnu/NoonnuBasicGothicRegular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

.lv-container,
.lv-container *,
.lv-tabbar,
.lv-tabbar *,
.lv-modal,
.lv-modal *,
.lv-toast{
  font-family: "NoonnuBasicGothic", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", Roboto, Helvetica, Arial, sans-serif !important;
  font-weight: 400 !important;
}

.lv-container{
  max-width: 980px;
  margin: 0 auto;
  padding: 18px 14px 92px;
}

.lv-topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  padding: 10px 6px 14px;
}

.lv-brand{
  display:inline-flex;
  align-items:center;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  line-height: 0;
}

.lv-brand-image{
  height: 42px;
  width: auto;
  display:block;
}

.lv-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 999px;
  box-shadow: var(--shadow);
  font-size: 13px;
  color: var(--muted);
}

.lv-profile-chip{
  border: 1px solid rgba(146, 166, 217, 0.18);
  cursor: pointer;
  padding: 8px 14px 8px 10px;
}

.lv-user-avatar{
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(145deg, #f7f9ff, #eef3ff);
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  flex: 0 0 auto;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.85);
}

.lv-card{
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.lv-title{
  font-size: 22px;
  letter-spacing:-0.02em;
  margin: 0 0 8px;
}

.lv-subtitle{
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
}

.lv-form{
  display:grid;
  gap: 10px;
}

.lv-input{
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--border);
  padding: 12px 12px;
  font-size: 16px;
  background: rgba(255,255,255,0.92);
}

.lv-row{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
}

.lv-btn{
  border: 0;
  border-radius: 14px;
  padding: 12px 14px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  background: rgba(16,24,40,0.06);
}
.lv-btn-primary{
  background: linear-gradient(135deg, var(--primary), #8b7bff);
  color: #fff;
}
.lv-btn-ghost{
  background: transparent;
  border: 1px solid var(--border);
}

.lv-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 12px;
}
@media (min-width: 740px){
  .lv-grid{ grid-template-columns: repeat(4, minmax(0,1fr)); }
}

.lv-book{
  position: relative;
  overflow:hidden;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.85);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease;
}
.lv-book:active{ transform: scale(0.98); }
.lv-book.lv-book-plain{
  overflow: visible;
  background: rgba(255,255,255,0.98);
  border-color: rgba(153, 178, 214, 0.16);
  box-shadow: 0 12px 28px rgba(124, 148, 201, 0.08);
}
.lv-book.lv-book-plain::before{
  content:none;
}
.lv-book-plain .lv-book-plain-block{
  min-height: 138px;
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 16px 14px;
  text-align:center;
}
.lv-book-plain .lv-book-plain-title{
  color: var(--text);
  font-size: 17px;
  line-height: 1.25;
  letter-spacing: -0.03em;
  word-break: keep-all;
}
.lv-choice{
  min-height: 58px;
}
.lv-book img{
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display:block;
  background: rgba(16,24,40,0.05);
}
.lv-book .lv-book-body{
  padding: 10px 10px 12px;
}
.lv-book .lv-book-title{
  font-weight: 500;
  font-size: 14px;
  margin:0;
}
.lv-book .lv-book-meta{
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
}

.lv-tabbar{
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 12px 14px;
  background: linear-gradient(180deg, transparent, rgba(245,247,255,0.9) 20%, rgba(245,247,255,0.98));
  backdrop-filter: blur(8px);
}
.lv-tabs{
  max-width: 980px;
  margin: 0 auto;
  display:grid;
  grid-template-columns: repeat(5, minmax(0,1fr));
  gap: 10px;
}
.lv-tab{
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow);
  border-radius: 18px;
  padding: 10px 10px;
  font-weight: 500;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
}
.lv-tab.lv-active{
  color: var(--text);
  border-color: rgba(108,99,255,0.25);
}

.lv-modal-backdrop{
  position: fixed;
  inset: 0;
  background: rgba(16,24,40,0.45);
  display:none;
  align-items: center;
  justify-content: center;
  padding: 18px;
  z-index: 999;
}
.lv-modal-backdrop.lv-open{ display:flex; }
.lv-modal{
  width: min(560px, 100%);
  border-radius: 22px;
  background: rgba(255,255,255,0.97);
  border: 1px solid var(--border);
  box-shadow: 0 20px 70px rgba(16,24,40,0.25);
  overflow:hidden;
}
.lv-modal-backdrop.lv-profile-open .lv-modal{
  width: min(520px, calc(100vw - 24px));
  max-height: min(82vh, 700px);
  display:flex;
  flex-direction:column;
}
.lv-modal-header{
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--border);
  display:flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}
.lv-modal-title{ margin:0; font-size: 16px; font-weight: 500; }
.lv-modal-close{ border:0; background: transparent; font-size: 22px; cursor:pointer; line-height: 1; }
.lv-modal-body{ padding: 14px 16px; overflow:auto; }

.lv-toast{
  position: fixed;
  left: 50%;
  bottom: 88px;
  transform: translateX(-50%);
  background: rgba(16,24,40,0.92);
  color:#fff;
  padding: 10px 12px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 13px;
  display:none;
  z-index: 1000;
}
.lv-toast.lv-show{ display:block; }

.lv-shell-logged-out .lv-topbar,
.lv-shell-logged-out .lv-tabbar{
  display:none;
}

.lv-login-shell{
  min-height: calc(100vh - 64px);
  display:flex;
  align-items:center;
  justify-content:center;
}

.lv-login-panel{
  width: 100%;
  max-width: 720px;
  display:grid;
  gap: 20px;
  justify-items:center;
  text-align:center;
}

.lv-login-hero{
  display:grid;
  gap: 18px;
  justify-items:center;
}

.lv-login-hero img{
  width: min(720px, 92vw);
  height: auto;
  display:block;
}

.lv-login-card{
  width: min(480px, 100%);
}

.lv-home-grid{
  display:grid;
  gap: 14px;
}

.lv-home-week{
  display:grid;
  grid-template-columns: repeat(7, minmax(0,1fr));
  gap: 10px;
}

.lv-home-day{
  text-align:center;
  display:grid;
  gap: 8px;
  justify-items:center;
}

.lv-home-day-box{
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 72px;
  border-radius: 18px;
  border: 1px solid rgba(154, 173, 216, 0.18);
  background: rgba(255,255,255,0.95);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.75);
}

.lv-home-day-box.lv-home-day-active-1{
  background: linear-gradient(145deg, rgba(206, 227, 255, 0.95), rgba(229, 218, 255, 0.95));
}

.lv-home-day-box.lv-home-day-active-2{
  background: linear-gradient(145deg, rgba(170, 212, 255, 0.98), rgba(215, 193, 255, 0.98));
}

.lv-home-day-box.lv-home-day-active-3{
  background: linear-gradient(145deg, rgba(139, 198, 255, 1), rgba(191, 171, 255, 1));
}

.lv-home-day-label{
  font-size: 12px;
  color: var(--muted);
}

.lv-home-cards{
  display:grid;
  grid-template-columns: repeat(1, minmax(0,1fr));
  gap: 12px;
}

.lv-home-card-title{
  font-size: 16px;
  margin-bottom: 10px;
}

.lv-home-list{
  display:grid;
  gap: 8px;
}

.lv-home-item{
  display:flex;
  justify-content:space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(245,247,255,0.8);
  border: 1px solid rgba(16,24,40,0.05);
}

.lv-profile-picker-grid{
  display:grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 10px;
}

.lv-profile-option{
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 20px;
  border: 2px solid transparent;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  background-color: rgba(255,255,255,0.92);
  cursor: pointer;
}

.lv-profile-option.lv-selected{
  border-color: rgba(108, 99, 255, 0.55);
  box-shadow: 0 0 0 4px rgba(108,99,255,0.10);
}

.lv-profile-preview{
  display:grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 14px;
  align-items:center;
  padding: 6px 0 14px;
}

.lv-profile-preview-avatar{
  width: 72px;
  height: 72px;
  border-radius: 22px;
  background-repeat:no-repeat;
  background-size:cover;
  background-position:center;
  box-shadow: 0 10px 24px rgba(116, 142, 210, 0.16);
}

.lv-profile-preview-id{
  color: var(--muted);
  font-size: 16px;
  margin-bottom: 8px;
}

.lv-profile-preview-input{
  width: 100%;
}

@media (min-width: 740px){
  .lv-home-cards{
    grid-template-columns: repeat(3, minmax(0,1fr));
  }
}

@media (max-width: 740px){
  .lv-login-shell{
    min-height: auto;
    padding-top: 28px;
  }

  .lv-brand-image{
    height: 34px;
  }

  .lv-tabs{
    grid-template-columns: repeat(5, minmax(0,1fr));
    gap: 8px;
  }

  .lv-tab{
    font-size: 12px;
    padding: 10px 6px;
  }

  .lv-home-week{
    gap: 6px;
  }

  .lv-book-plain .lv-book-plain-block{
    min-height: 116px;
    padding: 12px 10px;
  }

  .lv-profile-picker-grid{
    grid-template-columns: repeat(3, minmax(0,1fr));
  }

  .lv-modal-backdrop.lv-profile-open{
    padding: 10px;
    align-items:flex-start;
  }

  .lv-modal-backdrop.lv-profile-open .lv-modal{
    margin-top: 18px;
    max-height: calc(100vh - 36px);
  }

  .lv-profile-preview{
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 12px;
  }

  .lv-profile-preview-avatar{
    width: 58px;
    height: 58px;
    border-radius: 18px;
  }
}