```html
{% extends "base.html" %}
{% load i18n %}
{% load crispy_forms_tags %}
{% block title %}
    {% if token_fail %}
        {% trans "Invalid Reset Link" %}
    {% else %}
        {% trans "Reset Password" %}
    {% endif %}
{% endblock %}
{% block content %}
    <div class="container py-5">
        <div class="row justify-content-center">
            <div class="col-lg-5 col-md-7">
                <div class="card shadow-lg border-0 rounded-4">
                    <div class="card-body p-5">
                        {% if token_fail %}
                            <!-- Invalid Token -->
                            <div class="text-center">
                                <div class="mb-4">
                                    <i class="bi bi-exclamation-triangle-fill display-1 text-danger"></i>
                                </div>
                                <h2 class="fw-bold mb-3">{% trans "Invalid or Expired Link" %}</h2>
                                <p class="text-muted mb-4">{% trans "This password reset link is invalid or has already been used." %}</p>
                                <div class="alert alert-warning text-start">
                                    <i class="bi bi-info-circle-fill me-2"></i>
                                    {% trans "Password reset links can only be used once and may expire after a period of time." %}
                                </div>
                                <div class="d-grid gap-2 mt-4">
                                    <a href="{% url 'account_reset_password' %}"
                                       class="btn btn-primary btn-lg">
                                        <i class="bi bi-arrow-repeat me-2"></i>
                                        {% trans "Request a New Reset Link" %}
                                    </a>
                                    <a href="{% url 'account_login' %}" class="btn btn-outline-secondary">
                                        <i class="bi bi-box-arrow-in-right me-2"></i>
                                        {% trans "Back to Sign In" %}
                                    </a>
                                </div>
                            </div>
                        {% else %}
                            <!-- Valid Token -->
                            <div class="text-center mb-4">
                                <div class="mb-3">
                                    <i class="bi bi-shield-lock-fill display-2 text-primary"></i>
                                </div>
                                <h2 class="fw-bold">{% trans "Create a New Password" %}</h2>
                                <p class="text-muted">{% trans "Choose a strong password to secure your account." %}</p>
                            </div>
                            <form method="post" action="{{ action_url }}" novalidate>
                                {% csrf_token %}
                                {{ form|crispy }}
                                {{ redirect_field }}
                                <div class="d-grid gap-2 mt-4">
                                    <button type="submit" name="action" class="btn btn-primary btn-lg">
                                        <i class="bi bi-check-circle me-2"></i>
                                        {% trans "Change Password" %}
                                    </button>
                                    {% if cancel_url %}
                                        <a href="{{ cancel_url }}" class="btn btn-outline-secondary">
                                            <i class="bi bi-x-circle me-2"></i>
                                            {% trans "Cancel" %}
                                        </a>
                                    {% else %}
                                        <button type="submit"
                                                form="logout-from-stage"
                                                class="btn btn-outline-secondary">
                                            <i class="bi bi-x-circle me-2"></i>
                                            {% trans "Cancel" %}
                                        </button>
                                    {% endif %}
                                </div>
                            </form>
                            <hr class="my-4">
                            <div class="small text-muted">
                                <i class="bi bi-lightbulb me-2"></i>
                                {% trans "For better security, use a password with at least 12 characters, including uppercase letters, lowercase letters, numbers, and symbols." %}
                            </div>
                        {% endif %}
                    </div>
                </div>
            </div>
        </div>
    </div>
    {% if not cancel_url %}
        <form id="logout-from-stage"
              method="post"
              action="{% url 'account_logout' %}">
            {% csrf_token %}
            <input type="hidden" name="next" value="{% url 'account_login' %}">
        </form>
    {% endif %}
{% endblock %}
```