{% extends 'grades/base.html' %}
{% block title %}登录 - 学生成绩管理系统{% endblock %}

{% block content %}
<div class="row justify-content-center" style="min-height:80vh;align-items:center;">
    <div class="col-md-5 col-lg-4">
        <div class="card shadow">
            <div class="card-body p-4">
                <div class="text-center mb-4">
                    <i class="bi bi-mortarboard-fill text-primary" style="font-size:48px;"></i>
                    <h4 class="mt-2">学生成绩管理系统</h4>
                    <p class="text-muted">请登录您的账号</p>
                </div>

                {% if messages %}
                {% for msg in messages %}
                <div class="alert alert-{{ msg.tags }} alert-dismissible fade show py-2" role="alert">
                    {{ msg }}
                    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
                </div>
                {% endfor %}
                {% endif %}

                <form method="post">
                    {% csrf_token %}
                    <div class="mb-3">
                        <label class="form-label">用户名</label>
                        <div class="input-group">
                            <span class="input-group-text"><i class="bi bi-person"></i></span>
                            <input type="text" name="username" class="form-control" placeholder="请输入用户名" required autofocus>
                        </div>
                    </div>
                    <div class="mb-3">
                        <label class="form-label">密码</label>
                        <div class="input-group">
                            <span class="input-group-text"><i class="bi bi-lock"></i></span>
                            <input type="password" name="password" class="form-control" placeholder="请输入密码" required>
                        </div>
                    </div>
                    <button type="submit" class="btn btn-primary w-100 mb-3">
                        <i class="bi bi-box-arrow-in-right"></i> 登 录
                    </button>
                </form>
                <div class="text-center">
                    <small class="text-muted">还没有账号？</small>
                    <a href="{% url 'register' %}" class="small">学生注册</a>
                </div>
            </div>
        </div>
    </div>
</div>
{% endblock %}