/* ===================================================================
   wuxidixi —— 登录 / 注册模块公共样式
   纯手写 CSS，不依赖任何外部框架或构建产物
   =================================================================== */

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    font-family: system-ui, -apple-system, "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

body.auth-page {
    background: linear-gradient(to bottom, #3b82f6, #2563eb);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2rem 1rem;
}

/* ===== Logo 区 ===== */
.logo-area { text-align: center; margin-bottom: 1.5rem; }
.logo-area a {
    font-size: 1.875rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
}
.logo-area a .text-orange { color: #fdba74; }
.logo-area p { color: #bfdbfe; margin-top: .5rem; font-size: .875rem; }

/* ===== 卡片 ===== */
.card {
    width: 100%;
    max-width: 28rem;
    margin: 0 auto;
    background: #fff;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, .25);
    padding: 1.5rem;
}
@media (min-width: 640px) { .card { padding: 2rem; } }

/* ===== 表单 ===== */
.form-group { margin-bottom: 1rem; }
.form-group label {
    display: block;
    font-size: .875rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: .5rem;
}
.form-group label .optional { color: #9ca3af; font-weight: 400; font-size: .75rem; }
.form-group input {
    width: 100%;
    border: 1px solid #d1d5db;
    border-radius: .75rem;
    padding: .75rem 1rem;
    font-size: 1rem;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
}
.form-group input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, .3);
}

.checkbox-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}
.checkbox-group label {
    display: flex;
    align-items: center;
    font-size: .875rem;
    color: #4b5563;
}
.checkbox-group input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: .5rem;
    accent-color: #3b82f6;
}

/* ===== 按钮 ===== */
.btn-submit {
    width: 100%;
    background: #3b82f6;
    color: #fff;
    border: none;
    padding: 1rem;
    border-radius: .75rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background .2s;
    box-shadow: 0 10px 15px -3px rgba(59, 130, 246, .3);
}
.btn-submit:hover  { background: #2563eb; }
.btn-submit:active { background: #1d4ed8; }

/* ===== 提示信息 ===== */
.error-message {
    background: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fecaca;
    border-radius: .75rem;
    padding: .75rem 1rem;
    margin-bottom: 1rem;
    font-size: .875rem;
}
.success-message {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #93c5fd;
    border-radius: .75rem;
    padding: .75rem 1rem;
    margin-bottom: 1rem;
    font-size: .875rem;
}

/* ===== 底部链接 ===== */
.footer-links {
    margin-top: 1.5rem;
    text-align: center;
    font-size: .875rem;
    color: #6b7280;
}
.footer-links a { color: #3b82f6; font-weight: 500; text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }

.copyright {
    text-align: center;
    margin-top: 1.5rem;
    color: #bfdbfe;
    font-size: .75rem;
}

/* ===== 登录后的简单页面 ===== */
body.plain-page {
    background: #f3f4f6;
    min-height: 100vh;
    padding: 2rem 1rem;
}
.panel {
    max-width: 40rem;
    margin: 0 auto;
    background: #fff;
    border-radius: 1rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, .1);
    padding: 2rem;
}
.panel h1 { font-size: 1.375rem; color: #111827; margin-bottom: 1rem; }
.panel p  { color: #4b5563; line-height: 1.8; font-size: .9375rem; }
.panel .kv { display: flex; gap: .75rem; padding: .5rem 0; border-bottom: 1px solid #f3f4f6; font-size: .9375rem; }
.panel .kv b { color: #6b7280; font-weight: 500; min-width: 5rem; }
.panel .actions { margin-top: 1.5rem; display: flex; gap: .75rem; flex-wrap: wrap; }
.btn-link {
    display: inline-block;
    padding: .625rem 1.25rem;
    border-radius: .625rem;
    background: #3b82f6;
    color: #fff;
    text-decoration: none;
    font-size: .875rem;
}
.btn-link.ghost { background: #e5e7eb; color: #374151; }