/* ============ 欢迎页 / 登录 / 注册 / 邀请码管理（叠加在 theme.css 之上） ============ */

.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 28px 16px;
}

.auth-shell {
  width: 100%;
  max-width: 430px;
  text-align: center;
}

/* ---- 欢迎页 ---- */
.welcome-logo { margin-bottom: 16px; }
.welcome-title {
  font-family: var(--sans);
  font-size: clamp(34px, 8vw, 52px);
  font-weight: 800;
  letter-spacing: .04em;
  margin: 8px 0 2px;
  position: relative;
  color: #123e50;
}
.welcome-title.glitch::before,
.welcome-title.glitch::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.welcome-title.glitch::before {
  color: rgba(17, 103, 129, .18);
  transform: translate(-2px, 0);
  clip-path: inset(0 0 55% 0);
  animation: glitch-a 3.2s infinite steps(1);
}
.welcome-title.glitch::after {
  color: rgba(180, 83, 9, .14);
  transform: translate(2px, 0);
  clip-path: inset(55% 0 0 0);
  animation: glitch-b 2.7s infinite steps(1);
}
@keyframes glitch-a {
  0%, 92% { transform: translate(-2px, 0); opacity: 0; }
  93% { transform: translate(3px, -1px); opacity: .5; }
  95% { transform: translate(-4px, 1px); opacity: .45; }
  97% { transform: translate(2px, 0); opacity: .5; }
  100% { transform: translate(-2px, 0); opacity: 0; }
}
@keyframes glitch-b {
  0%, 90% { transform: translate(2px, 0); opacity: 0; }
  91% { transform: translate(-3px, 1px); opacity: .4; }
  94% { transform: translate(4px, -1px); opacity: .35; }
  98% { transform: translate(-2px, 1px); opacity: .4; }
  100% { transform: translate(2px, 0); opacity: 0; }
}
.welcome-sub { color: var(--text-mid); margin: 16px 0 6px; }
.welcome-actions { margin-top: 30px; }
.welcome-actions .btn { width: 100%; min-height: 52px; font-size: 15px; }
.welcome-foot {
  margin-top: 40px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--text-dim);
}

/* ---- 认证卡片 ---- */
.auth-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 32px 26px 26px;
  box-shadow: var(--glow-soft);
  position: relative;
  text-align: left;
}
.auth-card::before {
  content: '';
  position: absolute;
  top: -1px; left: 26px; right: 26px;
  height: 3px;
  background: #116781;
  border-radius: 0 0 3px 3px;
}
.auth-card h1 {
  font-family: var(--sans);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .06em;
  margin: 8px 0 2px;
  color: #123e50;
}
.auth-card .sub { color: var(--text-dim); font-size: 12.5px; margin: 0 0 24px; }

.auth-field { margin-bottom: 16px; }
.auth-field label {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--text-mid);
  margin-bottom: 7px;
  text-transform: uppercase;
}
.auth-field input {
  width: 100%;
  box-sizing: border-box;
  min-height: 46px;
  padding: 0 14px;
  color: var(--text);
  background: #ffffff;
  border: 1px solid #b9ccd4;
  border-radius: 8px;
  font-size: 15px;
  outline: none;
  transition: border-color .16s, box-shadow .16s;
}
.auth-field input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(17, 103, 129, .10);
}
.auth-card .btn { width: 100%; min-height: 48px; margin-top: 6px; font-size: 14px; }

.auth-err {
  display: none;
  color: var(--danger);
  font-size: 13px;
  margin: 4px 0 12px;
  padding: 9px 12px;
  border: 1px solid #edb5ae;
  background: #fff0ef;
  border-radius: 8px;
}
.auth-err.show { display: block; }

.auth-hint {
  margin-top: 22px;
  text-align: center;
  font-size: 13.5px;
  color: var(--text-mid);
}
.auth-hint a { color: var(--cyan); text-decoration: none; }
.auth-hint a:hover { color: #0d5a72; }

.back {
  display: block;
  margin-top: 18px;
  text-align: center;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--text-dim);
  text-decoration: none;
}
.back:hover { color: var(--cyan); }

@media (prefers-reduced-motion: reduce) {
  .welcome-title.glitch::before, .welcome-title.glitch::after { animation: none; }
}

/* ---- 邀请码管理页 ---- */
.admin-body { min-height: 100vh; }
.admin-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 20px 0 14px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 22px;
}
.admin-top h1 { font-family: var(--sans); font-size: 19px; letter-spacing: .04em; margin: 0; color: #123e50; }
.admin-top .who { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; color: var(--text-dim); }

.admin-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px 24px;
  margin-bottom: 20px;
  box-shadow: var(--glow-soft);
}
.admin-panel h2 {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--cyan);
  margin: 0 0 18px;
}

.gen-row {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-wrap: wrap;
}
.gen-row .auth-field { margin: 0; }
.gen-row .auth-field input { min-height: 42px; font-size: 14px; }
.gen-row .btn { min-height: 42px; }

.ivt-stats {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--text-mid);
}
.ivt-stats b { color: var(--cyan); font-size: 15px; }

.ivt-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.ivt-table th {
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-dim);
  font-weight: 600;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
}
.ivt-table td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: middle;
}
.ivt-table tr:hover td { background: #f4f8fa; }
.ivt-code { font-family: var(--mono, monospace); color: var(--cyan); letter-spacing: .06em; white-space: nowrap; }
.ivt-new { color: var(--ok); }
.ivt-used { color: var(--text-dim); }
.ivt-expired { color: var(--danger); }
.ivt-note { color: var(--text-dim); font-size: 12px; }
.ivt-date { color: var(--text-mid); font-size: 12px; white-space: nowrap; }

.cpy {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--magenta);
  background: #faf0e4;
  border: 1px solid #ecd9bb;
  border-radius: 6px;
  padding: 4px 10px;
  cursor: pointer;
}
.cpy:hover { background: #f5e6d2; }
.cpy.done { color: var(--ok); border-color: #a6d3bf; background: #edf9f4; }
.cpy.del {
  color: var(--danger);
  background: #fff0ef;
  border-color: #edb5ae;
}
.cpy.del:hover { background: #fde3df; }

.auth-ok {
  display: none;
  color: var(--ok);
  font-size: 13px;
  margin: 4px 0 12px;
  padding: 9px 12px;
  border: 1px solid #a6d3bf;
  background: #edf9f4;
  border-radius: 8px;
}
.auth-ok.show { display: block; }

.empty-tip { color: var(--text-dim); font-size: 13px; padding: 14px 0 6px; }
.admin-foot { display: flex; gap: 12px; margin: 26px 0 40px; }

/* ---- 欢迎页 · 手机扫码访问卡片 ---- */
.qrcard {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 22px auto 0;
    padding: 10px 16px 10px 10px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: var(--glow-soft);
    text-align: left;
    width: min(400px, 100%);
}
.qrcard .qrimg {
    flex: none;
    width: 118px;
    height: 118px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid var(--line-soft);
    border-radius: 9px;
    overflow: hidden;
}
.qrcard .qrimg table { border-collapse: collapse; }
.qrcard .qrtext b {
    display: block;
    font-size: 14.5px;
    letter-spacing: .02em;
    color: var(--text);
    margin-bottom: 5px;
}
.qrcard .qrtext span {
    font-size: 12.5px;
    line-height: 1.7;
    color: var(--text-mid);
}
@media (max-width: 480px) {
    .qrcard .qrimg { width: 102px; height: 102px; }
}