:root{
  --bg: #0b1220;
  --card: rgba(255,255,255,0.06);
  --card2: rgba(255,255,255,0.10);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.68);
  --line: rgba(255,255,255,0.12);
  --accent: #7dd3fc;     /* 淡藍 */
  --accent2:#a78bfa;     /* 淡紫 */
  --ok: #86efac;         /* 綠 */
  --warn:#fca5a5;        /* 紅 */
  --shadow: 0 20px 60px rgba(0,0,0,0.45);
  --radius: 18px;
  --radius2: 24px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang TC", "Noto Sans TC", Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 800px at 20% 10%, rgba(125,211,252,0.16), transparent 60%),
    radial-gradient(900px 600px at 80% 0%, rgba(167,139,250,0.14), transparent 55%),
    radial-gradient(900px 700px at 50% 90%, rgba(255,255,255,0.06), transparent 60%),
    var(--bg);
  overflow-x:hidden;
}

.wrap{
  width:min(1100px, calc(100% - 32px));
  margin:0 auto;
}

/* 背景 info.png 融合 */
.bg-decor{
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(900px 600px at 70% 30%, rgba(125,211,252,0.10), transparent 60%),
    radial-gradient(900px 700px at 30% 70%, rgba(167,139,250,0.10), transparent 60%);
}
.bg-decor::after{
  content:"";
  position:absolute;
  inset:-40px;
  background-image:url("../info.png");
  background-repeat:no-repeat;
  background-position: right 12% top 120px;
  background-size: 520px auto;
  opacity:0.12;
  filter: blur(0px) saturate(1.1);
  transform: translateZ(0);
}

/* Topbar */
.topbar{
  position:sticky;
  top:0;
  z-index:10;
  backdrop-filter: blur(14px);
  background: rgba(10,16,30,0.55);
  border-bottom: 1px solid var(--line);
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 0;
  gap:14px;
}

/* Brand */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--text);
  min-width: 200px;
}
.logo{
  height:40px;
  width:auto;
  display:block;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}
.brand__text{
  font-weight:700;
  letter-spacing:0.4px;
  opacity:0.92;
}

/* Nav */
.nav{
  display:flex;
  gap:10px;
  padding:6px;
  border:1px solid var(--line);
  border-radius:999px;
  background: rgba(255,255,255,0.04);
}
.nav__link{
  text-decoration:none;
  color: var(--muted);
  padding:10px 14px;
  border-radius:999px;
  transition: transform .15s ease, background .15s ease, color .15s ease;
  font-weight:650;
  letter-spacing:0.2px;
}
.nav__link:hover{
  background: rgba(255,255,255,0.06);
  color: var(--text);
  transform: translateY(-1px);
}
.nav__link.is-active{
  background: linear-gradient(135deg, rgba(125,211,252,0.22), rgba(167,139,250,0.20));
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.10);
}

/* Account */
.account{
  display:flex;
  align-items:center;
  gap:10px;
  min-width: 220px;
  justify-content:flex-end;
}
.account__user{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border:1px solid var(--line);
  background: rgba(255,255,255,0.04);
  border-radius:999px;
  color:var(--text);
}
.dot{
  width:10px;height:10px;border-radius:50%;
  background: var(--ok);
  box-shadow: 0 0 0 6px rgba(134,239,172,0.10);
}

/* Buttons */
.btn{
  appearance:none;
  border:0;
  cursor:pointer;
  padding:10px 14px;
  border-radius: 12px;
  color: #061018;
  font-weight:800;
  background: linear-gradient(135deg, rgba(125,211,252,0.95), rgba(167,139,250,0.95));
  box-shadow: 0 12px 30px rgba(0,0,0,0.25);
  transition: transform .15s ease, filter .15s ease;
}
.btn:hover{ transform: translateY(-1px); filter: brightness(1.02); }
.btn:active{ transform: translateY(0px); }
.btn--ghost{
  background: rgba(255,255,255,0.05);
  color: var(--text);
  border: 1px solid var(--line);
  box-shadow: none;
}
.iconbtn{
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border:1px solid var(--line);
  border-radius: 12px;
  padding:8px 10px;
  cursor:pointer;
}

/* Hero */
.hero{
  padding: 28px 0 12px;
}
.hero__title{
  margin:0 0 8px;
  font-size: clamp(26px, 4vw, 40px);
  letter-spacing:0.2px;
}
.hero__sub{
  margin:0;
  color: var(--muted);
  line-height:1.6;
}

/* Panel */
.panel{
  margin:18px 0 36px;
  border:1px solid var(--line);
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius2);
  box-shadow: var(--shadow);
  padding: 18px;
}
.panel__head{
  display:flex;
  gap:14px;
  align-items:flex-end;
  justify-content:space-between;
  flex-wrap:wrap;
  padding-bottom: 12px;
  border-bottom:1px solid var(--line);
}
.panel__left{ display:flex; flex-direction:column; gap:8px; }
.panel__right{ display:flex; align-items:center; gap:10px; }

/* Inputs */
.label{ color:var(--muted); font-weight:700; }
.input{
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 14px;
  outline:none;
}
.input:focus{
  border-color: rgba(125,211,252,0.35);
  box-shadow: 0 0 0 6px rgba(125,211,252,0.10);
}

.legend{ display:flex; gap:10px; flex-wrap:wrap; justify-content:flex-end; }
.chip{
  padding:8px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  font-weight:800;
  color:var(--text);
  background: rgba(255,255,255,0.04);
}
.chip--free{ border-color: rgba(134,239,172,0.35); }
.chip--taken{ border-color: rgba(252,165,165,0.35); }
.chip--mine{ border-color: rgba(125,211,252,0.45); }

/* Grid */
.grid{
  padding-top: 14px;
  display:grid;
  grid-template-columns: 120px repeat(4, minmax(120px, 1fr));
  gap: 10px;
}
.cell{
  border:1px solid var(--line);
  background: rgba(255,255,255,0.04);
  border-radius: 16px;
  padding: 12px;
  min-height: 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.cell:hover{ transform: translateY(-1px); background: rgba(255,255,255,0.055); }

.cell--head{
  background: rgba(255,255,255,0.02);
  color: var(--muted);
  font-weight:900;
}
.cell--rowhead{
  background: rgba(255,255,255,0.02);
  color: var(--muted);
  font-weight:900;
}
.badge{
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  font-weight:900;
  white-space:nowrap;
}
.badge--free{ border-color: rgba(134,239,172,0.35); }
.badge--taken{ border-color: rgba(252,165,165,0.35); }
.badge--mine{ border-color: rgba(125,211,252,0.45); }

.hint{
  margin-top: 12px;
  color: var(--muted);
  line-height:1.55;
}

/* My page table */
.table{
  margin-top: 10px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.rowcard{
  border:1px solid var(--line);
  background: rgba(255,255,255,0.04);
  border-radius: 16px;
  padding: 12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
.rowcard__left{ display:flex; flex-direction:column; gap:4px; }
.rowcard__title{ font-weight:950; }
.rowcard__sub{ color: var(--muted); }

/* Modal */
.modal{
  position:fixed;
  inset:0;
  display:none;
  z-index:50;
}
.modal.is-open{ display:block; }
.modal__backdrop{
  position:absolute;
  inset:0;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(10px);
}
.modal__card{
  position:relative;
  width:min(420px, calc(100% - 28px));
  margin: 90px auto 0;
  border-radius: 20px;
  border:1px solid var(--line);
  background: rgba(15,22,40,0.92);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.modal__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 14px;
  border-bottom:1px solid var(--line);
}
.modal__head h2{ margin:0; font-size:18px; letter-spacing:0.2px; }
.modal__body{
  padding: 14px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.muted{ color: var(--muted); margin:0; line-height:1.55; }

.row{ display:flex; gap:10px; justify-content:flex-end; }

/* Reveal animation */
.reveal{
  opacity:0;
  transform: translateY(10px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.is-in{
  opacity:1;
  transform: translateY(0);
}

.h2{ margin:0 0 10px; }
.list{ margin:0; padding-left:18px; color:var(--muted); line-height:1.7; }

@media (max-width: 820px){
  .grid{
    grid-template-columns: 110px repeat(4, minmax(90px, 1fr));
  }
  .brand__text{ display:none; }
  .account{ min-width: auto; }
}