/* ================================================
   Demo Pages — Shared Styles
   LP v2 design language
   ================================================ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#F6F4EE;--bg-alt:#EDEAE2;--white:#FFFFFF;
  --text:#14232D;--text-sub:#4A5B68;--text-mute:#8A9BA8;
  --primary:#155767;--primary-l:#1B6E82;--primary-bg:#E6F0F3;
  --accent:#E99A45;--accent-h:#D4872E;
  --border:#D9DFDB;--border-l:#E8ECE9;
  --success:#1A7A4A;--success-bg:#E0F3EA;
  --radius:12px;--radius-lg:18px;
  --shadow:0 4px 20px rgba(20,35,45,.06);
  --font:'Noto Sans JP','Inter','Hiragino Kaku Gothic ProN',sans-serif;
  --font-en:'Inter','Noto Sans JP',sans-serif;
  --max-w:1100px;
}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);font-size:15px;line-height:1.8;
  color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}

/* Header */
.demo-header{
  position:sticky;top:0;z-index:100;
  background:rgba(246,244,238,.9);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(217,223,219,.5);
  height:56px;
}
.demo-header-inner{
  max-width:var(--max-w);margin:0 auto;padding:0 24px;
  height:100%;display:flex;align-items:center;justify-content:space-between;
}
.demo-logo{font-size:14px;font-weight:700;color:var(--primary)}
.demo-nav{display:flex;align-items:center;gap:20px;font-size:13px}
.demo-nav a{color:var(--text-sub);transition:color .2s}
.demo-nav a:hover{color:var(--primary)}
.demo-nav-cta{
  padding:7px 18px;border-radius:8px;
  background:var(--primary);color:var(--white) !important;
  font-weight:600;font-size:12px;transition:background .2s;
}
.demo-nav-cta:hover{background:var(--primary-l)}

/* Page layout */
.demo-page{max-width:var(--max-w);margin:0 auto;padding:40px 24px 80px}
.demo-title{font-size:28px;font-weight:800;color:var(--text);margin-bottom:8px}
.demo-desc{font-size:15px;color:var(--text-sub);line-height:1.9;margin-bottom:6px}
.demo-supplement{font-size:13px;color:var(--text-mute);margin-bottom:36px}

/* Two-column layout */
.demo-grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:32px;align-items:start;
}

/* Form */
.demo-form{
  background:var(--white);border:1px solid var(--border-l);
  border-radius:var(--radius-lg);padding:28px 24px;
}
.demo-form h3{font-size:14px;font-weight:700;color:var(--text-mute);margin-bottom:16px;letter-spacing:.04em}
.field{margin-bottom:16px}
.field:last-child{margin-bottom:0}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text-sub);margin-bottom:4px}
.field input,.field textarea,.field select{
  width:100%;padding:10px 14px;border:1px solid var(--border);
  border-radius:8px;font-family:var(--font);font-size:14px;
  color:var(--text);background:var(--white);
  transition:border-color .2s;
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--primary);
}
.field textarea{resize:vertical;min-height:80px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}

.demo-btn-row{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.demo-btn{
  padding:12px 28px;border-radius:10px;border:none;cursor:pointer;
  font-family:var(--font);font-size:14px;font-weight:700;
  transition:background .2s,transform .15s;
}
.demo-btn:active{transform:scale(.97)}
.demo-btn--primary{background:var(--primary);color:var(--white)}
.demo-btn--primary:hover{background:var(--primary-l)}
.demo-btn--outline{
  background:transparent;color:var(--text-sub);
  border:1px solid var(--border);
}
.demo-btn--outline:hover{background:var(--bg-alt)}

/* Output */
.demo-output{
  background:var(--white);border:1px solid var(--border-l);
  border-radius:var(--radius-lg);padding:28px 24px;
  min-height:200px;
}
.demo-output h3{font-size:14px;font-weight:700;color:var(--text-mute);margin-bottom:16px;letter-spacing:.04em}
.demo-output-empty{
  display:flex;align-items:center;justify-content:center;
  min-height:160px;color:var(--text-mute);font-size:14px;
}

/* Output tabs */
.demo-tabs{display:flex;gap:4px;margin-bottom:16px;flex-wrap:wrap}
.demo-tab{
  padding:7px 16px;border-radius:8px;border:none;cursor:pointer;
  font-family:var(--font);font-size:12px;font-weight:600;
  background:var(--bg);color:var(--text-sub);transition:all .2s;
}
.demo-tab.active{background:var(--primary);color:var(--white)}
.demo-tab:hover:not(.active){background:var(--bg-alt)}
.demo-tab-content{display:none}
.demo-tab-content.active{display:block}

/* Output formatting */
.out-section{margin-bottom:20px}
.out-section:last-child{margin-bottom:0}
.out-label{
  font-size:11px;font-weight:700;color:var(--text-mute);
  letter-spacing:.06em;margin-bottom:6px;
}
.out-value{font-size:14px;color:var(--text);line-height:1.9}
.out-value strong{font-weight:700}

/* Output table */
.out-table{
  width:100%;border-collapse:collapse;font-size:13px;
  margin-bottom:12px;
}
.out-table th{
  text-align:left;padding:8px 10px;font-weight:600;
  color:var(--text-mute);background:var(--bg);
  border-bottom:1px solid var(--border-l);font-size:11px;
}
.out-table td{
  padding:8px 10px;border-bottom:1px solid var(--border-l);
  color:var(--text);
}
.out-highlight{
  display:inline-block;padding:4px 12px;border-radius:8px;
  background:var(--primary-bg);color:var(--primary);
  font-weight:700;font-size:15px;
}
.out-big-num{
  font-family:var(--font-en);font-size:36px;font-weight:800;
  color:var(--primary);line-height:1;
}
.out-big-unit{font-size:18px;font-weight:600}
.out-list{list-style:none}
.out-list li{
  padding:6px 0 6px 18px;position:relative;
  font-size:14px;color:var(--text);
}
.out-list li::before{
  content:'';position:absolute;left:0;top:13px;
  width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.3;
}

/* Bottom CTA */
.demo-bottom{
  text-align:center;padding:48px 24px;
  margin-top:48px;
  border-top:1px solid var(--border-l);
}
.demo-bottom p{font-size:14px;color:var(--text-sub);margin-bottom:16px;line-height:1.8}
.demo-bottom-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 32px;border-radius:10px;
  background:var(--accent);color:var(--white);
  font-size:15px;font-weight:700;
  box-shadow:0 4px 16px rgba(233,154,69,.25);
  transition:background .2s,transform .15s;
}
.demo-bottom-cta:hover{background:var(--accent-h);transform:translateY(-2px)}
.demo-bottom-note{font-size:12px;color:var(--text-mute);margin-top:12px}
.demo-disclaimer{
  font-size:11px;color:var(--text-mute);text-align:center;
  margin-top:32px;line-height:1.8;
}

/* Status badges */
.status-badge{
  display:inline-block;padding:3px 10px;border-radius:6px;
  font-size:11px;font-weight:700;
}
.status-badge--pending{background:#FEF3E2;color:#B8860B}
.status-badge--active{background:var(--primary-bg);color:var(--primary)}
.status-badge--done{background:var(--success-bg);color:var(--success)}

/* Responsive */
@media(max-width:768px){
  .demo-grid{grid-template-columns:1fr;gap:20px}
  .demo-title{font-size:24px}
  .field-row{grid-template-columns:1fr}
  .demo-btn-row{flex-direction:column}
  .demo-btn{width:100%;text-align:center}
}