{% extends "base.html" %}
{% block title %}登录 — HF Daily Papers{% endblock %}
{% block content %}
<div class="login-page">
  <div class="login-card">
    <div class="login-header">
      <h1 class="login-title">🔑 管理员登录</h1>
      <p class="login-subtitle">请输入管理员账号和密码</p>
    </div>

    {% if error %}
    <div class="login-error">
      {{ error }}
    </div>
    {% endif %}

    <form class="login-form" action="/admin/login" method="post">
      <div class="login-field">
        <label for="username">用户名</label>
        <input
          type="text"
          id="username"
          name="username"
          placeholder="请输入用户名"
          required
          autofocus
        />
      </div>
      <div class="login-field">
        <label for="password">密码</label>
        <input
          type="password"
          id="password"
          name="password"
          placeholder="请输入密码"
          required
        />
      </div>
      <button type="submit" class="login-btn">登 录</button>
    </form>
  </div>
</div>

<style>
  .login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    padding: 40px 16px;
  }

  .login-card {
    width: 100%;
    max-width: 400px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    box-shadow: 0 4px 24px var(--shadow);
  }

  .login-header {
    text-align: center;
    margin-bottom: 28px;
  }

  .login-title {
    font-family: var(--font-body);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--ink);
    margin: 0 0 8px;
  }

  .login-subtitle {
    font-size: 0.9rem;
    color: var(--ink-light);
    margin: 0;
  }

  .login-error {
    background: #fce4ec;
    color: #c62828;
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 0.85rem;
    margin-bottom: 20px;
    text-align: center;
  }

  .login-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
  }

  .login-field label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 6px;
  }

  .login-field input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--ink);
    transition: border-color 0.2s;
    box-sizing: border-box;
  }

  .login-field input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(27, 54, 93, 0.1);
  }

  .login-btn {
    width: 100%;
    padding: 12px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    font-family: var(--font-sans);
    margin-top: 4px;
  }

  .login-btn:hover {
    background: var(--accent-hover);
  }

  @media (max-width: 480px) {
    .login-card {
      padding: 28px 20px;
    }
  }
</style>
{% endblock %}