{% set lang = config.theme.language or 'en' %}
{% extends "main.html" %}

{% block content %}
<div class="error-page fade-in">
    <div class="error-container glass-card">
        <div class="error-code">404</div>
        <h1 class="error-title">{{ config.extra.t[lang]['404_title'] or 'Signal Lost' }}</h1>
        <p class="error-message">{{ config.extra.t[lang]['404_message'] or 'The pathway you were looking for seems to have scattered through the quantum foam.' }}</p>

        <div class="error-illustration">
            <div class="wave"></div>
            <div class="wave"></div>
            <div class="wave"></div>
            <div class="particle particle-1"></div>
            <div class="particle particle-2"></div>
            <div class="particle particle-3"></div>
            <div class="particle particle-4"></div>
        </div>

        <div class="error-actions">
            <a href="{{ '/'|url }}" class="beam-button">{{ config.extra.t[lang].return_button or 'Return to Safe Space' }}</a>
            <a href="javascript:history.back()" class="text-button">{{ config.extra.t[lang].back_button or 'Step Back' }}</a>
        </div>
    </div>
</div>

<style>
    .error-page {
        min-height: 60vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: var(--spacing-xl) 0;
    }

    .error-container {
        max-width: 600px;
        width: 100%;
        padding: var(--spacing-xl);
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .error-code {
        font-family: var(--font-display);
        font-size: 8rem;
        line-height: 1;
        font-weight: 800;
        margin-bottom: var(--spacing-md);
        background: linear-gradient(135deg, var(--lab-violet), var(--lab-aqua));
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        letter-spacing: -0.04em;
        text-shadow: 0 0 30px rgba(83, 51, 237, 0.4);
    }

    .error-title {
        font-size: 2.5rem;
        margin-top: 0;
        margin-bottom: var(--spacing-md);
    }

    .error-message {
        font-size: 1.2rem;
        color: rgba(255, 255, 255, 0.8);
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
        margin-bottom: var(--spacing-xl);
    }

    .error-actions {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
        margin-top: var(--spacing-xl);
    }

    .text-button {
        color: var(--lab-aqua);
        text-decoration: none;
        transition: text-shadow 0.3s var(--ease-curve), color 0.3s var(--ease-curve);
        padding: var(--spacing-xs) var(--spacing-md);
    }

    .text-button:hover {
        color: var(--photon-white);
        text-shadow: 0 0 8px rgba(4, 226, 220, 0.5);
    }

    /* Illustration with animated elements */
    .error-illustration {
        position: relative;
        height: 120px;
        margin: var(--spacing-xl) 0;
    }

    .wave {
        position: absolute;
        top: 50%;
        left: 0;
        width: 100%;
        height: 2px;
        background: linear-gradient(90deg,
            transparent 0%,
            var(--lab-aqua) 20%,
            var(--lab-violet) 50%,
            var(--lab-aqua) 80%,
            transparent 100%);
        opacity: 0.7;
        transform: translateY(-50%);
        animation: wave-animate 6s linear infinite;
    }

    .wave:nth-child(2) {
        animation-duration: 8s;
        opacity: 0.5;
        top: 60%;
    }

    .wave:nth-child(3) {
        animation-duration: 10s;
        animation-direction: reverse;
        opacity: 0.3;
        top: 40%;
    }

    @keyframes wave-animate {
        0% {
            background-position: 0% 50%;
        }
        100% {
            background-position: 100% 50%;
        }
    }

    .particle {
        position: absolute;
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: var(--lab-aqua);
        opacity: 0.7;
        filter: blur(2px);
        animation: particle-float 8s ease-in-out infinite;
    }

    .particle-1 {
        top: 20%;
        left: 30%;
        animation-delay: 0s;
        background: var(--lab-violet);
    }

    .particle-2 {
        top: 60%;
        left: 60%;
        animation-delay: -2s;
    }

    .particle-3 {
        top: 30%;
        left: 75%;
        animation-delay: -4s;
        background: var(--lab-violet);
    }

    .particle-4 {
        top: 70%;
        left: 15%;
        animation-delay: -6s;
    }

    @keyframes particle-float {
        0%, 100% {
            transform: translateY(0) scale(1);
            opacity: 0.7;
        }
        50% {
            transform: translateY(-15px) scale(1.2);
            opacity: 0.9;
        }
    }

    @media (max-width: 640px) {
        .error-code {
            font-size: 6rem;
        }

        .error-title {
            font-size: 2rem;
        }

        .error-message {
            font-size: 1rem;
        }

        .error-illustration {
            height: 80px;
        }
    }
</style>
{% endblock %}