:root {
  --paper: #FFFEFC;
  --ink: #000000;
  --accent: #EC6738;
  --card: #FFFFFF;
  --line-soft: rgba(0,0,0,0.14);
  --ink-soft: rgba(0,0,0,0.58);
  --accent-tint: rgba(236,103,56,0.14);
  --ink-tint: rgba(0,0,0,0.06);
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Noto Sans TC', sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: inherit; }

.wrap {
  max-width: 460px;
  margin: 0 auto;
  padding: 70px 24px 90px;
}

.brand {
  margin-bottom: 4px;
}
.brand-line1 {
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-soft);
  margin-bottom: 2px;
}
.brand-line2 {
  font-family: 'Noto Serif TC', serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.3;
}
.sidebar .brand-line1 { font-size: 11px; }
.sidebar .brand-line2 { font-size: 17px; }

.eyebrow {
  font-family: 'Fraunces', serif;
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--accent);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 14px;
}

.brand-sub {
  color: var(--ink-soft);
  font-size: 13.5px;
  margin-bottom: 34px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 26px;
}

.field-label {
  display: block;
  font-family: 'Fraunces', serif;
  font-size: 12.5px;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

input[type="email"],
input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  color: var(--ink);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 14.5px;
  font-family: 'Noto Sans TC', sans-serif;
  outline: none;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 14.5px;
  font-weight: 500;
  padding: 12px 18px;
  transition: opacity .15s, color .15s, border-color .15s;
}
button:hover { opacity: .9; }
button:disabled { opacity: .4; cursor: not-allowed; }

.btn-primary { background: var(--ink); color: #fff; width: 100%; }
.btn-primary:hover { opacity: .85; }
.btn-ghost { background: transparent; border: 1px solid var(--line-soft); color: var(--ink-soft); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); opacity: 1; }
.btn-danger { background: transparent; border: 1px solid var(--line-soft); color: var(--ink-soft); }
.btn-danger:hover { border-color: var(--accent); color: var(--accent); opacity: 1; }
.btn-sm { padding: 8px 12px; font-size: 12.5px; }

.msg { font-size: 13px; margin-top: 14px; min-height: 18px; font-weight: 500; }
.msg.error { color: var(--ink); }
.msg.error::before { content: "✕ "; color: var(--accent); }
.msg.ok { color: var(--accent); }
.msg.ok::before { content: "✓ "; }

.otp-input {
  font-family: 'Fraunces', serif;
  letter-spacing: 10px;
  font-size: 22px;
  text-align: center;
}

/* portal layout */
.portal {
  display: flex;
  min-height: 100vh;
}
.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--card);
  border-right: 1px solid var(--line-soft);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.sidebar-foot {
  font-size: 11.5px;
  color: var(--ink-soft);
  line-height: 1.7;
}
.sidebar-nav { margin-top: 30px; display: flex; flex-direction: column; gap: 4px; }
.sidebar-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  border: 1px solid transparent;
  cursor: pointer;
}
.sidebar-nav a.active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-tint);
}
.sidebar-nav a:hover { color: var(--ink); }

.main { flex: 1; padding: 40px 48px; }
.main h1 {
  font-family: 'Noto Serif TC', serif;
  font-size: 22px;
  margin: 0 0 6px;
}
.main .sub { color: var(--ink-soft); font-size: 13px; margin-bottom: 28px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 880px) {
  .grid { grid-template-columns: 1fr; }
  .main { padding: 28px 20px; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--line-soft); }
  .portal { flex-direction: column; }
}

.item-card {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}
.item-card.locked { opacity: .5; cursor: not-allowed; }
.item-card:not(.locked):hover { border-color: var(--accent); }
.item-title { font-weight: 700; font-size: 14.5px; margin-bottom: 4px; }
.item-desc { color: var(--ink-soft); font-size: 12.8px; }
.item-lock {
  font-family: 'Fraunces', serif;
  font-size: 11.5px;
  color: var(--ink-soft);
  white-space: nowrap;
}

/* admin dashboard */
.admin-topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 32px; border-bottom: 1px solid var(--line-soft);
}
.admin-body { padding: 32px; max-width: 900px; margin: 0 auto; }
.tabs { display: flex; gap: 6px; margin-bottom: 24px; background: var(--card); border: 1px solid var(--line-soft); border-radius: 10px; padding: 4px; width: fit-content; }
.tabs button { background: transparent; color: var(--ink-soft); border: none; }
.tabs button.active { background: var(--accent); color: #fff; }

table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: 13.5px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line-soft); }
th { font-family: 'Fraunces', serif; color: var(--ink-soft); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; }

.form-row { margin-bottom: 14px; }
.form-inline { display: flex; gap: 10px; }
.form-inline > * { flex: 1; }
.hint { font-size: 12px; color: var(--ink-soft); margin-top: 6px; }

footer {
  margin-top: 70px;
  font-size: 12px;
  color: var(--ink-soft);
  text-align: center;
  padding-bottom: 20px;
}