/* 登录页：与监控台同构的深色科技风（挂 data-theme="dashboard"），居中单卡 */
@import url("./tokens.css?v=20261016b");

body[data-page="login"] {
  min-height: 100vh;
  display: grid; place-items: center;
  background:
    radial-gradient(60rem 40rem at 12% -10%, rgba(34, 211, 238, 0.12), transparent 60%),
    radial-gradient(50rem 40rem at 100% 100%, rgba(167, 139, 250, 0.10), transparent 55%),
    var(--color-bg);
}
/* 与看板同一套网格背景，保证两页观感连续 */
body[data-page="login"]::before {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.028) 1px, transparent 1px),
    linear-gradient(rgba(167, 139, 250, 0.020) 1px, transparent 1px),
    linear-gradient(90deg, rgba(167, 139, 250, 0.020) 1px, transparent 1px);
  background-size: 44px 44px, 44px 44px, 220px 220px, 220px 220px;
  -webkit-mask-image: radial-gradient(70% 65% at 50% 45%, #000 30%, transparent 100%);
  mask-image: radial-gradient(70% 65% at 50% 45%, #000 30%, transparent 100%);
}

/* 毛玻璃卡片 */
.login-card {
  position: relative; z-index: 1;
  width: min(420px, calc(100vw - 48px));
  background: linear-gradient(180deg, rgba(17, 26, 43, 0.82), rgba(14, 21, 36, 0.88));
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55),
              0 0 0 1px rgba(34, 211, 238, 0.10),
              inset 0 1px 0 rgba(255, 255, 255, 0.05);
  padding: var(--space-5);
}
.login-card::before {
  content: ""; position: absolute; top: 0; left: var(--space-5);
  width: 46px; height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  border-radius: 2px;
}

/* 字阶：品牌 → 副标题 → 表单，三级分明 */
.login-card .brand {
  font-family: var(--font-display);
  font-size: 26px; font-weight: 700; letter-spacing: 0.02em;
}
.login-card .brand em {
  color: var(--color-accent); font-style: normal;
  text-shadow: 0 0 16px var(--glow-cyan);
}
.login-sub {
  color: var(--color-muted); font-size: 13px; letter-spacing: 0.04em;
  margin: var(--space-2) 0 var(--space-4);
}

.field { margin-bottom: var(--space-3); }
.field label {
  display: block; font-size: 13px; color: var(--color-muted);
  margin-bottom: var(--space-1); letter-spacing: 0.1em;
}
.field input {
  width: 100%; min-height: 44px;
  padding: 0 var(--space-3);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  background: rgba(7, 11, 20, 0.60);
  color: var(--color-ink);
  transition: border-color var(--dur-fast) ease-out,
              box-shadow var(--dur-fast) ease-out,
              background var(--dur-fast) ease-out;
}
.field input:hover { border-color: rgba(34, 211, 238, 0.30); }
.field input:focus-visible {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(7, 11, 20, 0.88);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.14);
}

.form-error {
  display: none;
  margin-top: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-left: 2px solid var(--status-crit);
  background: rgba(239, 68, 68, 0.10);
  color: #fca5a5; font-size: var(--text-sm);
  border-radius: var(--radius-sm);
}
.form-error.show { display: block; }

/* 主按钮：青渐变 + 深色字（青底白字对比度不足，故反色）
   —— .btn 原本只定义在 dashboard.css，登录页没引那个文件，按钮一直是浏览器默认样式，此处补齐 */
.login-card .btn {
  width: 100%; margin-top: var(--space-2);
  min-height: 44px; padding: 0 var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: linear-gradient(135deg, #22d3ee, #0891b2);
  color: #04121c; font-weight: 700; letter-spacing: 0.18em;
  box-shadow: 0 4px 16px rgba(34, 211, 238, 0.28);
  transition: filter var(--dur-fast) ease-out,
              box-shadow var(--dur-fast) ease-out,
              transform var(--dur-fast) ease-out;
}
.login-card .btn:hover:not(:disabled) {
  filter: brightness(1.08);
  box-shadow: 0 6px 22px rgba(34, 211, 238, 0.42);
}
.login-card .btn:active:not(:disabled) { transform: translateY(1px); }
.login-card .btn:disabled {
  opacity: 0.55; box-shadow: none; filter: saturate(0.5); cursor: not-allowed;
}

.login-foot {
  text-align: center; margin-top: var(--space-4);
  font-size: 13px; color: var(--color-muted);
}
.login-foot a { color: var(--color-accent); transition: opacity var(--dur-fast) ease-out; }
.login-foot a:hover { text-decoration: none; opacity: 0.75; }