:root{
  --bg: #fff;
  --text: #121212;
  --muted: #5a5a5a;
  --card: rgba(255,255,255,.72);
  --card-border: rgba(0,0,0,.08);
  --shadow: 0 10px 30px rgba(0,0,0,.12);
  --accent: #ff4fb3;
  --accent2: #ff98d6;
  --good: #17c964;
  --danger: #ff3b30;
  --ring: rgba(255,79,179,.28);
  --radius: 16px;
  --bg-grad: radial-gradient(1200px 600px at 20% 0%, rgba(255, 160, 210,.55), transparent 60%),
             radial-gradient(900px 500px at 80% 10%, rgba(255, 210, 235,.62), transparent 55%),
             linear-gradient(180deg, #fff6fb, #ffe7f4);
}

html.theme-dark{
  --bg: #0d0f14;
  --text: #f2f3f5;
  --muted: #b4b7c0;
  --card: rgba(18, 20, 28,.72);
  --card-border: rgba(255,255,255,.08);
  --shadow: 0 14px 40px rgba(0,0,0,.50);
  --ring: rgba(255,79,179,.22);
  --bg-grad: radial-gradient(1200px 600px at 20% 0%, rgba(255, 79, 179,.18), transparent 60%),
             radial-gradient(900px 500px at 80% 10%, rgba(120, 94, 255,.16), transparent 55%),
             linear-gradient(180deg, #0d0f14, #0a0c10);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, "Noto Sans TC", sans-serif;
  background: var(--bg);
  color: var(--text);
  background-image: var(--bg-grad);
  background-attachment: fixed;
  cursor: auto;
}
html.no-scrollbar,
body.no-scrollbar{
  scrollbar-width: none;
  -ms-overflow-style: none;
}
html.no-scrollbar,
html.no-scrollbar body,
body.no-scrollbar{
  overflow: auto;
}
html.no-scrollbar::-webkit-scrollbar,
body.no-scrollbar::-webkit-scrollbar{
  width: 0;
  height: 0;
}
html.no-scrollbar *,
body.no-scrollbar *{
  scrollbar-width: none;
  -ms-overflow-style: none;
}
html.no-scrollbar *::-webkit-scrollbar,
body.no-scrollbar *::-webkit-scrollbar{
  width: 0;
  height: 0;
}
body.is-loading > *:not(.loading-overlay){
  filter: blur(6px);
  pointer-events: none;
  user-select: none;
}

a{ color: inherit; text-decoration:none; }
.hidden{ display:none !important; }

.topbar{
  position: sticky;
  top:0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(255,255,255,.45);
  border-bottom: 1px solid var(--card-border);
  display:flex;
  align-items:center;
  gap:16px;
  padding: 10px 16px;
}
html.theme-dark .topbar{ background: rgba(10,12,16,.52); }

.brand{ display:flex; align-items:center; gap:10px; }
.brand-link{
  padding: 0;
  height: 88px;
  display: inline-flex;
  align-items: center;
}
.brand-link:hover{ background: transparent; }
html.theme-dark .brand-link:hover{ background: transparent; }
.brand-logo{
  height: 100%;
  width: auto;
  display: block;
}

.nav{ flex:1; min-width: 0; }
.nav-cats{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  gap:6px;
  flex-wrap:wrap;
}
.nav-cat{ position: relative; }
.nav-cat > button{
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 650;
  font-size: 17px;
}
.nav-cat > button:hover{
  border-color: var(--card-border);
  background: rgba(255,255,255,.25);
}
html.theme-dark .nav-cat > button:hover{ background: rgba(255,255,255,.08); }

.dropdown{
  position:absolute;
  left:0;
  top: calc(100% + 8px);
  min-width: 220px;
  padding: 8px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display:none;
  z-index: 60;
}
.nav-cat:hover .dropdown{ display:block; }
.nav-cat.open .dropdown{ display:block; }
.nav-cat.open > button{
  border-color: var(--card-border);
  background: rgba(255,255,255,.25);
}
html.theme-dark .nav-cat.open > button{ background: rgba(255,255,255,.08); }
.nav-cat:hover::after{
  content:"";
  position:absolute;
  left:0;
  top:100%;
  width:max(100%, 220px);
  height: 10px;
}

.dropdown a{
  display:block;
  padding:10px 10px;
  border-radius: 12px;
  color: var(--text);
}
.dropdown a:hover{ background: rgba(255,255,255,.30); }
html.theme-dark .dropdown a:hover{ background: rgba(255,255,255,.08); }

.topbar-right{ display:flex; align-items:center; gap:10px; }
.auth-area{ display:flex; align-items:center; gap:10px; }
.auth-status{
  font-size: 12px;
  color: var(--muted);
  padding-left: 4px;
  opacity: 0;
  transition: opacity .2s ease;
  white-space: nowrap;
}
.auth-status.is-active{ opacity: 1; }
.auth-modal-status{
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
}
.auth-modal-status.is-error{
  color: var(--danger);
  font-weight: 700;
}
#themeToggle{
  font-size: 18px;
  line-height: 1;
}

.container{
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 16px 80px;
}

.site-footer{
  max-width: 1100px;
  margin: 0 auto 30px;
  padding: 12px 16px 0;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.loading-overlay{
  position: fixed;
  inset: 0;
  z-index: 120;
  display:flex;
  align-items:center;
  justify-content:center;
  background: rgba(255,255,255,.55);
  backdrop-filter: blur(6px);
  transition: opacity .35s ease, visibility .35s ease;
}
html.theme-dark .loading-overlay{ background: rgba(10,12,16,.62); }
body:not(.is-loading) .loading-overlay{
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loading-card{
  min-width: min(360px, 90vw);
  padding: 18px 18px 16px;
  border-radius: 18px;
  border: 1px solid var(--card-border);
  background: var(--card);
  box-shadow: var(--shadow);
  text-align: center;
}
.loading-title{
  font-weight: 900;
  font-size: 18px;
  letter-spacing: .6px;
}
.loading-progress{
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(0,0,0,.10);
  border: 1px solid var(--card-border);
  margin: 12px 0 8px;
}
html.theme-dark .loading-progress{ background: rgba(255,255,255,.08); }
.loading-progress-bar{
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width .25s ease;
}
.loading-percent{
  font-weight: 850;
  font-size: 16px;
}
.loading-label{
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.theme-transition{
  position: fixed;
  inset: 0;
  z-index: 130;
  pointer-events: none;
  opacity: 0;
  --crack: rgba(20,20,30,.35);
  --flash: rgba(255,255,255,.45);
}
html.theme-dark .theme-transition{
  --crack: rgba(255,255,255,.45);
  --flash: rgba(255,255,255,.2);
}
.theme-transition::before,
.theme-transition::after{
  content: "";
  position: absolute;
  inset: 0;
}
.theme-transition::before{
  background:
    repeating-linear-gradient(25deg, var(--crack) 0 2px, transparent 2px 22px),
    repeating-linear-gradient(-35deg, var(--crack) 0 1px, transparent 1px 20px),
    repeating-linear-gradient(95deg, var(--crack) 0 1px, transparent 1px 26px);
  opacity: .75;
}
.theme-transition::after{
  background:
    radial-gradient(circle at 45% 45%, var(--flash) 0 18%, transparent 45%),
    radial-gradient(circle at 70% 30%, rgba(255,255,255,.18) 0 14%, transparent 40%);
  mix-blend-mode: screen;
}
.theme-transition.is-active{
  animation: crackFlash .7s ease;
}
body.theme-burst{
  overflow: hidden;
  padding-right: var(--scrollbar-comp, 0px);
  animation: crackShake .7s ease;
}
@keyframes crackFlash{
  0%{ opacity: 0; transform: scale(1.02); }
  25%{ opacity: .85; }
  55%{ opacity: .45; }
  100%{ opacity: 0; transform: scale(1); }
}
@keyframes crackShake{
  0%{ transform: translate(0,0); }
  20%{ transform: translate(1px,-1px); }
  40%{ transform: translate(-1px,1px); }
  60%{ transform: translate(1px,0); }
  100%{ transform: translate(0,0); }
}

.auth-toast{
  position: fixed;
  inset: 0;
  z-index: 140;
  display:flex;
  align-items:center;
  justify-content:center;
  pointer-events: none;
  opacity: 0;
  transition: opacity .2s ease;
  background: rgba(255,255,255,.25);
  backdrop-filter: blur(4px);
}
html.theme-dark .auth-toast{ background: rgba(10,12,16,.35); }
.auth-toast.is-active{ opacity: 1; }
.auth-toast-card{
  min-width: min(320px, 90vw);
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid var(--card-border);
  background: var(--card);
  box-shadow: var(--shadow);
  text-align: center;
  animation: authPop .45s ease;
}
.auth-toast-title{
  font-weight: 900;
  font-size: 18px;
}
.auth-toast-subtitle{
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}
@keyframes authPop{
  from{ transform: scale(.92); opacity: .3; }
  to{ transform: scale(1); opacity: 1; }
}

.content{
  background: linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,240,248,.60));
  border: 1px solid var(--card-border);
  border-radius: calc(var(--radius) + 6px);
  box-shadow: var(--shadow);
  padding: 18px;
}
html.theme-dark .content{
  background: linear-gradient(180deg, rgba(20,22,30,.72), rgba(12,14,20,.62));
}
.fade-in{
  animation: fadeUp .55s ease both;
}
@keyframes fadeUp{
  from{ opacity: 0; transform: translateY(8px); }
  to{ opacity: 1; transform: translateY(0); }
}
.stagger{
  animation: fadeUp .6s ease both;
  animation-delay: var(--delay, 0ms);
}

.banner{
  margin: 14px 0;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,.45);
}
html.theme-dark .banner{ background: rgba(255,255,255,.06); }

.h1{ margin: 0 0 12px; font-size: 22px; }
.muted{ color: var(--muted); }

.btn{
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,.45);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  user-select:none;
}
html.theme-dark .btn{ background: rgba(255,255,255,.06); }
.btn:hover{ box-shadow: 0 0 0 4px var(--ring); }
.btn[disabled]{
  opacity: .5;
  cursor: not-allowed;
  box-shadow: none;
}
.btn-primary{
  border-color: transparent;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  color: #0c0c0c;
  font-weight: 750;
}
html.theme-dark .btn-primary{ color: #fff; }
.btn-ready{
  animation: btnFlicker 1s linear infinite;
}
@keyframes btnFlicker{
  0%{ color: #16a34a; }
  50%{ color: #ffffff; }
  100%{ color: #16a34a; }
}
.btn-ghost{
  background: transparent;
  border-color: transparent;
}
.btn-ghost:hover{
  border-color: var(--card-border);
  background: rgba(255,255,255,.22);
}
html.theme-dark .btn-ghost:hover{ background: rgba(255,255,255,.06); }

.input, .textarea{
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,.55);
  color: var(--text);
  outline: none;
}
html.theme-dark .input, html.theme-dark .textarea{ background: rgba(0,0,0,.18); }
.textarea{ min-height: 120px; resize: vertical; }
.row{ display:grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 720px){ .row{ grid-template-columns: 1fr; } }

.grid-products{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}
@media (max-width: 980px){ .grid-products{ grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 640px){ .grid-products{ grid-template-columns: 1fr; } }

.home-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
@media (max-width: 720px){ .home-grid{ grid-template-columns: 1fr; } }

.home-card{
  display:flex;
  flex-direction: column;
  gap: 8px;
}
.home-title{
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .2px;
}
.home-value{
  font-size: 20px;
  font-weight: 850;
}
.ip-location{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 6px;
}
.ip-location-text{
  display:flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 0;
}
.ip-location-label{
  font-weight: 700;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .6px;
}
.ip-location-value{
  font-weight: 800;
  font-size: 16px;
}
.ip-map-embed{
  position: relative;
  width: clamp(220px, 36vw, 320px);
  height: clamp(140px, 26vw, 210px);
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  background: rgba(255,255,255,.35);
}
html.theme-dark .ip-map-embed{
  background: rgba(0,0,0,.18);
}
.ip-map-frame{
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  pointer-events: none;
}
.ip-map-placeholder{
  position: absolute;
  inset: 0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight: 700;
  color: var(--muted);
  background: linear-gradient(135deg, rgba(255,255,255,.55), rgba(255,255,255,.25));
}
html.theme-dark .ip-map-placeholder{
  background: linear-gradient(135deg, rgba(18,20,28,.6), rgba(18,20,28,.3));
}
.progress{
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(0,0,0,.10);
  border: 1px solid var(--card-border);
}
html.theme-dark .progress{ background: rgba(255,255,255,.08); }
.progress-bar{
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width .6s ease;
}
.progress-bar-day{
  background: linear-gradient(90deg, #22c55e, #86efac);
}
.progress-bar-year{
  background: linear-gradient(90deg, #3b82f6, #93c5fd);
}
.progress-label{
  font-weight: 700;
  font-size: 12px;
}
.progress-label-month{
  color: var(--accent);
}
.progress-label-day{
  color: #16a34a;
}
.progress-label-year{
  color: #2563eb;
}

.card{
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 12px;
  background: linear-gradient(135deg, rgba(255,255,255,.85), rgba(255,238,249,.70));
}
html.theme-dark .card{
  background: linear-gradient(135deg, rgba(22,24,34,.72), rgba(16,18,26,.62));
}
.content .card:nth-of-type(3n + 1){
  background: linear-gradient(135deg, rgba(255,245,232,.88), rgba(255,225,238,.70));
}
.content .card:nth-of-type(3n + 2){
  background: linear-gradient(135deg, rgba(235,248,255,.88), rgba(220,238,255,.70));
}
.content .card:nth-of-type(3n){
  background: linear-gradient(135deg, rgba(240,255,240,.88), rgba(224,248,234,.70));
}
html.theme-dark .content .card:nth-of-type(3n + 1){
  background: linear-gradient(135deg, rgba(36,32,30,.78), rgba(28,24,22,.62));
}
html.theme-dark .content .card:nth-of-type(3n + 2){
  background: linear-gradient(135deg, rgba(24,30,36,.78), rgba(18,22,28,.62));
}
html.theme-dark .content .card:nth-of-type(3n){
  background: linear-gradient(135deg, rgba(24,34,28,.78), rgba(18,26,22,.62));
}
.pill{
  display:inline-flex;
  align-items:center;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  color: var(--muted);
  font-size: 12px;
}
.price{ font-size: 18px; font-weight: 800; }

.fab{
  position: fixed;
  right: 18px;
  bottom: 18px;
  padding: 14px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  color: #0c0c0c;
  font-weight: 800;
  box-shadow: var(--shadow);
  cursor: pointer;
}

.modal-root{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 16px;
  z-index: 80;
}
.modal{
  width: min(720px, 100%);
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: calc(var(--radius) + 6px);
  box-shadow: var(--shadow);
  padding: 16px;
}
.modal-header{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.modal-title{ font-weight: 850; font-size: 18px; }

.table{
  width:100%;
  border-collapse: collapse;
  overflow:hidden;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
}
.table th, .table td{
  text-align:left;
  padding: 10px;
  border-bottom: 1px solid var(--card-border);
  font-size: 13px;
  vertical-align: top;
}
.table th{ color: var(--muted); font-weight: 750; }

.admin-tabs{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-bottom: 12px;
}

#adminApp > .card{ margin-bottom: 12px; }
#adminApp > .card:last-child{ margin-bottom: 0; }