/* ===== 登录页专属样式 =====
   颜色 token 复用 main.css 的 :root；本文件只放登录页特有的布局/装饰。
   全部选择器收敛在 .login-page 作用域内，避免与应用外壳类名冲突。
   装饰色一律由品牌色 color-mix 派生，不写死 hex/rgb（见 docs/配色规范.md）。 */

.login-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
}

/* ---------- 左：品牌深蓝 + 流动波纹 ---------- */
.login-page .visual {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(40px, 4vw, 64px);
  color: var(--c-text-inverse);
  background: linear-gradient(165deg,
    color-mix(in srgb, var(--c-primary-deep) 92%, white) 0%,
    var(--c-primary-deep) 46%,
    color-mix(in srgb, var(--c-primary-deep) 58%, black) 100%);
}
.login-page .flow { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; pointer-events: none; }
.login-page .flow path { fill: none; stroke: var(--c-text-inverse); stroke-width: 1px; vector-effect: non-scaling-stroke; }
.login-page .visual::after {
  content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: radial-gradient(80% 50% at 18% 0%, color-mix(in srgb, white 28%, transparent), transparent 60%);
}

.login-page .visual-top { position: absolute; z-index: 4; top: clamp(34px, 4vw, 56px); left: clamp(40px, 4vw, 64px); display: flex; flex-direction: column; gap: 4px; }
.login-page .logo-word { font-size: 27px; font-weight: 750; line-height: 1; letter-spacing: -.01em; }
.login-page .logo-tag { font-size: 9px; font-weight: 700; letter-spacing: .34em; color: color-mix(in srgb, var(--c-text-inverse), transparent 30%); padding-left: 2px; }

.login-page .visual-copy { position: relative; z-index: 4; max-width: 460px; }
.login-page .visual-copy h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
  font-weight: 400;
  font-style: italic;
  font-size: clamp(30px, 3.4vw, 46px);
  line-height: 1.24;
  letter-spacing: .005em;
  text-wrap: balance;
}
.login-page .vt { margin: 16px 0 0; font-size: 14px; line-height: 1.7; color: color-mix(in srgb, var(--c-text-inverse), transparent 26%); }

/* ---------- 右：纯白登录表单 ---------- */
.login-page .panel { display: flex; align-items: center; justify-content: center; padding: clamp(36px, 4vw, 56px); background: var(--c-surface); }
.login-page .form-area { width: min(100%, 360px); }

.login-page .brand { display: flex; align-items: center; gap: 11px; margin-bottom: 38px; }
.login-page .brand-mark {
  display: grid; place-items: center; width: 36px; height: 36px; border-radius: var(--radius);
  color: var(--c-text-inverse); background: var(--c-primary); box-shadow: var(--shadow-card);
}
.login-page .brand-mark svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.login-page .brand-name { font-size: 14px; font-weight: 700; line-height: 1.3; color: var(--c-text); }
.login-page .brand-name span { display: block; font-size: 11px; font-weight: 500; color: var(--c-text-muted); }

.login-page .head { margin-bottom: 22px; }
.login-page .head h1 { margin: 0; font-size: 27px; font-weight: 650; letter-spacing: -.01em; color: var(--c-text); }
.login-page .head p { margin: 8px 0 0; font-size: 14px; color: var(--c-text-secondary); }

.login-page .form { display: grid; gap: 17px; }
.login-page .field { display: grid; gap: 7px; }
.login-page .field-label { font-size: 12px; font-weight: 600; color: var(--c-text-secondary); }

.login-page .input-wrap { position: relative; display: flex; align-items: center; }
.login-page .lead { position: absolute; left: 14px; width: 18px; height: 18px; color: var(--c-text-muted); fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; pointer-events: none; transition: color .18s ease; }
.login-page .input-wrap input {
  width: 100%; height: 50px; padding: 0 15px 0 42px;
  border: 1px solid var(--c-border-strong); border-radius: var(--radius); outline: none;
  color: var(--c-text); background: var(--c-surface); font-size: 15px;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.login-page .input-wrap input::placeholder { color: var(--c-text-muted); }
.login-page .input-wrap input:focus { border-color: var(--c-primary); box-shadow: 0 0 0 3px var(--c-primary-ring); }
.login-page .input-wrap input:focus ~ .lead { color: var(--c-primary); }
.login-page .input-wrap.has-action input { padding-right: 48px; }

.login-page .field-action { position: absolute; right: 7px; display: grid; place-items: center; width: 36px; height: 36px; padding: 0; border: 0; border-radius: 8px; color: var(--c-text-muted); background: transparent; cursor: pointer; transition: color .15s ease, background-color .15s ease; }
.login-page .field-action:hover { color: var(--c-primary); background: var(--c-primary-tint); }
.login-page .field-action svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.login-page .field-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 2px; font-size: 13px; color: var(--c-text-secondary); }
.login-page .remember { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.login-page .remember input { width: 16px; height: 16px; accent-color: var(--c-primary); cursor: pointer; }
.login-page .link { color: var(--c-primary); text-decoration: none; font-weight: 500; }
.login-page .link:hover { text-decoration: underline; text-underline-offset: 3px; }

.login-page .form-error {
  background: var(--c-danger-bg); color: var(--c-danger); font-size: 13px; line-height: 1.5;
  padding: 10px 12px; border-radius: var(--radius-sm);
}

/* 主按钮：品牌蓝纯色，不做变色处理 */
.login-page .submit {
  width: 100%; height: 52px; display: flex; align-items: center; justify-content: center; gap: 10px;
  margin-top: 7px; border: 0; border-radius: var(--radius);
  color: var(--c-text-inverse); background: var(--c-primary);
  font-size: 15px; font-weight: 600; letter-spacing: .02em; cursor: pointer;
  box-shadow: var(--shadow-pop);
  transition: transform .14s ease;
}
.login-page .submit:active { transform: translateY(1px); }
.login-page .submit svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.login-page .field-action:focus-visible,
.login-page .submit:focus-visible,
.login-page .link:focus-visible { outline: 3px solid var(--c-primary-ring); outline-offset: 2px; }

.login-page .foot { margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--c-border); text-align: center; font-size: 12px; line-height: 1.7; color: var(--c-text-muted); }
.login-page .foot a { color: var(--c-text-secondary); text-decoration: none; font-weight: 500; }
.login-page .foot a:hover { color: var(--c-primary); }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .login-page { grid-template-columns: 1fr; }
  .login-page .visual { min-height: 200px; padding: 26px 30px; justify-content: flex-end; }
  .login-page .visual-copy { display: none; }
}
@media (max-width: 480px) {
  .login-page .visual { display: none; }
  .login-page .panel { padding: 40px 24px; min-height: 100dvh; }
}
@media (prefers-reduced-motion: reduce) {
  .login-page *, .login-page *::before, .login-page *::after { transition: none !important; }
}