:root{
  --paper:#F2EADB;
  --paper-deep:#E9DFC9;
  --indigo:#1F2E4A;
  --indigo-soft:#3A4A6B;
  --brass:#B8912F;
  --vermillion:#A83E32;
  --ink:#2B2620;
  --line-gray:#C9C0AC;
  --white:#FBF8F1;
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:
    radial-gradient(circle at 10% 10%, rgba(184,145,47,0.06), transparent 40%),
    var(--paper);
  color:var(--ink);
  font-family:'Zen Kaku Gothic New', sans-serif;
  min-height:100vh;
  padding-bottom:60px;
}
.app{
  max-width:1100px;
  margin:0 auto;
  padding:0 16px;
}
header{
  padding:28px 0 18px;
  border-bottom:3px double var(--indigo);
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
}
header .stamp{
  width:46px;height:46px;flex:0 0 auto;
  border:2px solid var(--vermillion);
  border-radius:50%;
  color:var(--vermillion);
  display:flex;align-items:center;justify-content:center;
  font-family:'Shippori Mincho', serif;
  font-weight:700;
  font-size:12px;
  transform:rotate(-8deg);
  opacity:0.85;
  line-height:1.1;
  text-align:center;
}
h1{
  font-family:'Shippori Mincho', serif;
  font-weight:700;
  font-size:26px;
  margin:0;
  letter-spacing:0.04em;
  color:var(--indigo);
}
.sub{
  font-size:11px;
  letter-spacing:0.12em;
  color:var(--indigo-soft);
  margin-top:4px;
}

nav.tabs{
  display:flex;
  margin:22px 0 20px;
  border:1px solid var(--indigo);
  border-radius:4px;
  overflow:hidden;
}
nav.tabs button{
  flex:1;
  padding:12px 4px;
  background:var(--white);
  border:none;
  border-right:1px solid var(--indigo);
  font-family:'Shippori Mincho', serif;
  font-size:13px;
  font-weight:700;
  color:var(--indigo-soft);
  cursor:pointer;
  letter-spacing:0.02em;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
nav.tabs button:last-child{border-right:none;}
nav.tabs button.active{
  background:var(--indigo);
  color:var(--white);
}

section.panel{display:none;}
section.panel.active{display:block;}

.form-card{
  background:var(--white);
  border:1px solid var(--line-gray);
  border-radius:6px;
  padding:18px;
  margin-bottom:24px;
  box-shadow:0 1px 0 rgba(0,0,0,0.03);
}
.form-card h2{
  font-family:'Shippori Mincho', serif;
  font-size:15px;
  margin:0 0 14px;
  color:var(--indigo);
  display:flex;
  align-items:center;
  gap:8px;
}
.form-card h2::before{
  content:'';
  width:8px;height:8px;
  background:var(--brass);
  display:inline-block;
  transform:rotate(45deg);
}
.field-row{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-bottom:10px;
}
.field{width:100%;}
.field label{
  display:block;
  font-size:11px;
  color:var(--indigo-soft);
  margin-bottom:4px;
  letter-spacing:0.03em;
}
.field input, .field textarea, .field select{
  width:100%;
  padding:10px;
  border:1px solid var(--line-gray);
  border-radius:3px;
  background:var(--paper);
  font-family:'Zen Kaku Gothic New', sans-serif;
  font-size:16px;
  color:var(--ink);
  -webkit-appearance:none;
  appearance:none;
  line-height:1.4;
}
.field input[type="date"]{
  min-height:42px;
}
.field textarea{resize:vertical;min-height:44px;}
.field input:focus, .field textarea:focus, .field select:focus{
  outline:2px solid var(--brass);
  outline-offset:1px;
}
.submit-btn{
  width:100%;
  padding:11px;
  background:var(--indigo);
  color:var(--white);
  border:none;
  border-radius:3px;
  font-family:'Shippori Mincho', serif;
  font-weight:700;
  font-size:14px;
  letter-spacing:0.08em;
  cursor:pointer;
  margin-top:4px;
}
.submit-btn:active{background:var(--indigo-soft);}

.list-title{
  font-family:'Shippori Mincho', serif;
  font-size:13px;
  color:var(--indigo-soft);
  margin:0 0 12px;
  letter-spacing:0.1em;
  display:flex;
  justify-content:space-between;
}

/* ticket stub card */
.ticket{
  position:relative;
  background:var(--white);
  border:1px solid var(--indigo);
  border-radius:4px;
  margin-bottom:16px;
  display:flex;
  overflow:visible;
}
.ticket-main{
  flex:1;
  padding:14px 16px;
  border-right:2px dashed var(--line-gray);
  position:relative;
}
.ticket-stub{
  width:56px;
  flex:0 0 56px;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:8px 4px;
}
.ticket-stub .date{
  writing-mode:vertical-rl;
  font-family:'Courier Prime', monospace;
  font-size:12px;
  color:var(--vermillion);
  letter-spacing:0.05em;
  font-weight:700;
}
/* perforation notches */
.ticket::before, .ticket::after{
  content:'';
  position:absolute;
  width:14px;height:14px;
  background:var(--paper);
  border-radius:50%;
  right:52px;
}
.ticket::before{top:-8px;}
.ticket::after{bottom:-8px;}

.ticket-line{
  font-family:'Courier Prime', monospace;
  font-size:10px;
  color:var(--brass);
  letter-spacing:0.08em;
  margin-bottom:4px;
  text-transform:uppercase;
}
.ticket-title{
  font-family:'Shippori Mincho', serif;
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:4px;
}
.ticket-meta{
  font-size:12px;
  color:var(--indigo-soft);
  margin-bottom:6px;
}
.ticket-memo{
  font-size:13px;
  color:var(--ink);
  line-height:1.5;
  white-space:pre-wrap;
}
.del-btn{
  position:absolute;
  top:8px;right:16px;
  background:none;
  border:none;
  color:var(--line-gray);
  font-size:12px;
  cursor:pointer;
  padding:2px 6px;
}
.del-btn:hover{color:var(--vermillion);}

/* trip note */
.trip-card{
  background:var(--white);
  border:1px solid var(--line-gray);
  border-left:4px solid var(--brass);
  border-radius:4px;
  padding:12px 14px;
  margin-bottom:12px;
  position:relative;
}
.trip-card.done{
  border-left-color:var(--indigo-soft);
  opacity:0.55;
}
.trip-card.done .trip-title{text-decoration:line-through;}
.trip-top{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:nowrap;
}
.trip-title{
  font-family:'Shippori Mincho', serif;
  font-size:15px;
  font-weight:700;
  flex:1;
  min-width:0;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.check{
  width:20px;height:20px;flex:0 0 auto;
  border:2px solid var(--indigo);
  border-radius:3px;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  color:var(--white);
  font-size:13px;
  margin-top:1px;
}
.check.checked{background:var(--indigo);}
.priority-tag{
  font-size:10px;
  padding:2px 7px;
  border-radius:10px;
  font-weight:700;
  letter-spacing:0.05em;
  white-space:nowrap;
}
.priority-高{background:#F3DEDB;color:var(--vermillion);}
.priority-中{background:#F0E7CE;color:var(--brass);}
.priority-低{background:#E4E8EE;color:var(--indigo-soft);}
.trip-memo{
  font-size:13px;
  color:var(--ink);
  margin:8px 0 0 30px;
  line-height:1.5;
  white-space:pre-wrap;
}

.empty{
  text-align:center;
  padding:40px 20px;
  color:var(--indigo-soft);
  font-size:13px;
  border:1px dashed var(--line-gray);
  border-radius:6px;
}
.empty .big{
  font-family:'Shippori Mincho', serif;
  font-size:16px;
  color:var(--indigo);
  display:block;
  margin-bottom:6px;
}
footer{
  text-align:center;
  font-size:11px;
  color:var(--line-gray);
  margin-top:30px;
  letter-spacing:0.1em;
}
.footer-link{
  font-family:'Zen Kaku Gothic New', sans-serif;
  font-size:12px;
  color:var(--indigo-soft);
  text-decoration:underline;
  letter-spacing:0.05em;
  cursor:pointer;
}
.menu-panel{
  display:none;
  background:var(--white);
  border:1px solid var(--indigo);
  border-radius:6px;
  padding:12px;
  margin:14px auto 0;
  max-width:320px;
  text-align:left;
}
.menu-panel.open{display:block;}
.menu-item{
  width:100%;
  padding:10px;
  background:var(--paper);
  border:1px dashed var(--brass);
  border-radius:4px;
  font-family:'Zen Kaku Gothic New', sans-serif;
  font-size:13px;
  color:var(--indigo-soft);
  cursor:pointer;
  margin-bottom:8px;
  text-align:center;
}
.menu-item:last-of-type{margin-bottom:0;}
.menu-item:active{background:var(--paper-deep);}
.backup-status{
  font-size:11px;
  color:var(--indigo-soft);
  min-height:14px;
  margin-top:8px;
  text-align:center;
  letter-spacing:0.02em;
}

/* ---- Responsive: tablet ---- */
@media (min-width:700px){
  header{
    max-width:640px;
    margin-left:auto;
    margin-right:auto;
  }
  nav.tabs{
    max-width:640px;
    margin-left:auto;
    margin-right:auto;
  }
  .form-card{
    max-width:640px;
    margin-left:auto;
    margin-right:auto;
  }
  .field-row{
    flex-direction:row;
  }
  .field{width:auto;flex:1;min-width:0;}
  .list-title{
    max-width:640px;
    margin-left:auto;
    margin-right:auto;
  }
  #v-list, #s-list, #t-list{
    max-width:640px;
    margin-left:auto;
    margin-right:auto;
    display:grid;
    grid-template-columns:repeat(2, 1fr);
    gap:16px;
    align-items:start;
  }
  .ticket, .trip-card{margin-bottom:0;}
  .empty{grid-column:1 / -1;}
  h1{font-size:30px;}
}

/* ---- Responsive: desktop ---- */
@media (min-width:1024px){
  header{max-width:1100px;padding-top:36px;}
  nav.tabs{max-width:720px;}
  h1{font-size:34px;}
  .form-card{max-width:720px;padding:24px;}
  .list-title{max-width:1100px;}
  #v-list, #s-list, #t-list{
    max-width:1100px;
    grid-template-columns:repeat(3, 1fr);
    gap:18px;
  }
}