/* ============================================================
   管理员登录页 · Fiber 站点视觉风格
   设计令牌取自 gofiber.io 的实际样式：
   暗色背景 #1b1b1d、卡片表面 #242526、主色 #88acd3、圆角 .4rem、
   字体 system-ui、正文行高 1.65
   ============================================================ */

:root {
  --ifm-color-primary: #88acd3;
  --ifm-color-primary-dark: #6f9aca;
  --ifm-color-primary-darker: #6291c5;
  --ifm-color-primary-darkest: #4277b1;
  --ifm-color-primary-light: #a1bedc;

  --ifm-color-danger: #fa383e;
  --ifm-color-danger-dark: #e13238;
  --ifm-color-danger-contrast-background: #4b1113;
  --ifm-color-danger-contrast-foreground: #ffebec;

  --ifm-background-color: #1b1b1d;
  --ifm-background-surface-color: #242526;
  --ifm-hover-overlay: rgba(255, 255, 255, .05);
  --ifm-color-content: #e3e3e3;
  --ifm-color-content-secondary: #fff;
  --ifm-code-background: rgba(255, 255, 255, .1);

  --ifm-color-emphasis-200: #444950;
  --ifm-color-emphasis-300: #606770;
  --ifm-color-emphasis-400: #8d949e;
  --ifm-color-emphasis-500: #bec3c9;
  --ifm-color-emphasis-600: #ccd0d5;
  --ifm-color-emphasis-700: #dadde1;
  --ifm-color-emphasis-800: #ebedf0;

  --ifm-font-family-base: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu,
    Cantarell, "Noto Sans", sans-serif, BlinkMacSystemFont, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei";

  --ifm-line-height-base: 1.65;
  --ifm-global-radius: .4rem;
  --ifm-global-shadow-md: 0 5px 40px rgba(0, 0, 0, .2);
  --ifm-link-color: var(--ifm-color-primary);
  --ifm-transition-fast: .2s;
  --ifm-transition-timing-default: cubic-bezier(.08, .52, .52, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--ifm-background-color);
  color: var(--ifm-color-content);
  font-family: var(--ifm-font-family-base);
  font-size: 16px;
  line-height: var(--ifm-line-height-base);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--ifm-link-color); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- 页面容器 ---------- */
.page {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 32px 16px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  padding: 32px;
  border: 1px solid var(--ifm-color-emphasis-200);
  border-radius: 8px;
  background: var(--ifm-background-surface-color);
  box-shadow: var(--ifm-global-shadow-md);
}

/* ---------- 头部 ---------- */
.auth-head { margin-bottom: 24px; }

.brand {
  display: inline-block;
  height: 30px;
  margin-bottom: 20px;
  color: #fff;
}
.brand svg { height: 100%; width: auto; display: block; }
.brand:hover { text-decoration: none; opacity: .9; }

.auth-head h1 {
  margin: 0 0 6px;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--ifm-color-content-secondary);
}

.auth-sub {
  margin: 0;
  font-size: 14px;
  color: var(--ifm-color-emphasis-600);
}
.auth-sub strong { color: var(--ifm-color-emphasis-800); font-weight: 600; }

/* ---------- 表单 ---------- */
.auth-form { margin: 0; }

.form-row { margin-bottom: 16px; }

.form-row--inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 18px 0 20px;
}

.form-label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ifm-color-emphasis-800);
}

.form-control {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--ifm-color-emphasis-300);
  border-radius: var(--ifm-global-radius);
  background: var(--ifm-background-color);
  color: var(--ifm-color-content);
  font: inherit;
  font-size: 15px;
  line-height: 1.5;
  transition: border-color var(--ifm-transition-fast),
              box-shadow var(--ifm-transition-fast);
}
.form-control::placeholder { color: var(--ifm-color-emphasis-400); }
.form-control:focus {
  outline: none;
  border-color: var(--ifm-color-primary);
  box-shadow: 0 0 0 3px rgba(136, 172, 211, .25);
}
.form-control:-webkit-autofill,
.form-control:-webkit-autofill:hover,
.form-control:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--ifm-color-content);
  -webkit-box-shadow: 0 0 0 1000px #141517 inset;
  caret-color: var(--ifm-color-content);
  transition: background-color 9999s ease-out;
}

.password-shell { position: relative; }
.password-shell .form-control { padding-right: 42px; }
.peek {
  position: absolute;
  top: 50%;
  right: 5px;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: var(--ifm-global-radius);
  background: none;
  color: var(--ifm-color-emphasis-400);
  cursor: pointer;
  transition: color var(--ifm-transition-fast), background var(--ifm-transition-fast);
}
.peek svg { width: 18px; height: 18px; }
.peek:hover { color: var(--ifm-color-content); background: var(--ifm-hover-overlay); }
.peek.on { color: var(--ifm-color-primary); }

/* ---------- 复选框 ---------- */
.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  color: var(--ifm-color-emphasis-700);
  cursor: pointer;
  user-select: none;
}
.checkbox input { position: absolute; opacity: 0; width: 0; height: 0; }
.checkbox-box {
  display: grid;
  place-items: center;
  width: 17px;
  height: 17px;
  border: 1px solid var(--ifm-color-emphasis-400);
  border-radius: .25rem;
  background: var(--ifm-background-color);
  transition: background var(--ifm-transition-fast), border-color var(--ifm-transition-fast);
}
.checkbox-box svg {
  width: 11px;
  height: 11px;
  color: #1b1b1d;
  opacity: 0;
  transform: scale(.6);
  transition: all var(--ifm-transition-fast);
}
.checkbox input:checked + .checkbox-box {
  background: var(--ifm-color-primary);
  border-color: var(--ifm-color-primary);
}
.checkbox input:checked + .checkbox-box svg { opacity: 1; transform: scale(1); }
.checkbox input:focus-visible + .checkbox-box { box-shadow: 0 0 0 3px rgba(136, 172, 211, .25); }

.doc-link { font-size: 14px; }

/* ---------- 提示框 ---------- */
.alert {
  margin: 0 0 18px;
  padding: 12px 16px;
  border-left: 5px solid var(--ifm-alert-border-color);
  border-radius: var(--ifm-global-radius);
  background: var(--ifm-alert-background-color);
  color: var(--ifm-alert-foreground-color);
  animation: shake .42s var(--ifm-transition-timing-default);
}
.alert--danger {
  --ifm-alert-background-color: var(--ifm-color-danger-contrast-background);
  --ifm-alert-foreground-color: var(--ifm-color-danger-contrast-foreground);
  --ifm-alert-border-color: var(--ifm-color-danger-dark);
}
.alert-heading {
  margin-bottom: 4px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.25;
  text-transform: uppercase;
}
.alert p { margin: 0; font-size: 14px; }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  22% { transform: translateX(-5px); }
  44% { transform: translateX(4px); }
  68% { transform: translateX(-2px); }
}

/* ---------- 按钮 ---------- */
.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--ifm-global-radius);
  background-color: var(--ifm-button-background-color);
  color: var(--ifm-button-color);
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: background-color var(--ifm-transition-fast),
              border-color var(--ifm-transition-fast),
              color var(--ifm-transition-fast);
}
.button--primary {
  --ifm-button-background-color: var(--ifm-color-primary-darkest);
  --ifm-button-color: #fff;
  border-color: var(--ifm-color-primary-darkest);
}
.button--primary:hover { filter: brightness(1.15); }
.button--block { display: flex; width: 100%; }
.button:disabled { cursor: default; opacity: .85; }

.button-text { transition: opacity var(--ifm-transition-fast); }
.spinner {
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, .35);
  border-top-color: #fff;
  border-radius: 50%;
  opacity: 0;
  animation: spin .7s linear infinite;
}
.button.loading .button-text { opacity: 0; }
.button.loading .spinner { opacity: 1; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 页脚 ---------- */
.auth-foot {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--ifm-color-emphasis-200);
  font-size: 12px;
  color: var(--ifm-color-emphasis-400);
}
.auth-foot i {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--ifm-color-emphasis-300);
}

/* ---------- 响应式 ---------- */
@media (max-width: 480px) {
  .page { padding: 20px 14px; }
  .auth-card { padding: 24px 20px; border-radius: 6px; }
  .auth-head h1 { font-size: 21px; }
  .form-row--inline { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}