/* Página 404 - Tema Escuro com Azul Água */

.page-404 {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    color: #ffffff;
    font-family: 'Noto Sans', sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Container Principal */
.error-container {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 2rem;
    max-width: 800px;
    width: 100%;
}

/* Números 404 */
.error-number {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    font-size: clamp(4rem, 12vw, 10rem);
    font-weight: 700;
    line-height: 1;
}

.number-4,
.number-0 {
    position: relative;
    display: inline-block;
    color: #ffffff;
    text-shadow: 
        0 0 15px rgba(74, 144, 226, 0.4),
        0 0 30px rgba(74, 144, 226, 0.25),
        0 0 45px rgba(74, 144, 226, 0.15);
    animation: pulse-glow 2s ease-in-out infinite;
}

.number-4:nth-child(1) {
    animation-delay: 0s;
}

.number-0 {
    animation-delay: 0.3s;
    color: #5BA3F5;
    text-shadow: 
        0 0 20px rgba(91, 163, 245, 0.5),
        0 0 40px rgba(91, 163, 245, 0.35),
        0 0 60px rgba(91, 163, 245, 0.25);
}

.number-4:nth-child(3) {
    animation-delay: 0.6s;
}

@keyframes pulse-glow {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

/* Título e Descrição */
.error-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 600;
    margin-bottom: 1rem;
    color: #ffffff;
    text-shadow: 0 2px 10px rgba(74, 144, 226, 0.25);
}

.error-description {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
    line-height: 1.6;
}

/* Partículas Animadas */
.error-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: #5BA3F5;
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(91, 163, 245, 0.6), 0 0 15px rgba(91, 163, 245, 0.4);
    animation: float infinite ease-in-out;
    opacity: 0.7;
}

.particle:nth-child(1) {
    top: 20%;
    left: 10%;
    width: 6px;
    height: 6px;
    background: #4A90E2;
}

.particle:nth-child(2) {
    top: 60%;
    left: 80%;
    width: 5px;
    height: 5px;
    background: #5BA3F5;
}

.particle:nth-child(3) {
    top: 80%;
    left: 20%;
    width: 4px;
    height: 4px;
    background: #3A7BC8;
}

.particle:nth-child(4) {
    top: 30%;
    left: 70%;
    width: 5px;
    height: 5px;
    background: #6BA8E8;
}

.particle:nth-child(5) {
    top: 50%;
    left: 50%;
    width: 6px;
    height: 6px;
    background: #5BA3F5;
}

@keyframes float {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 0.7;
    }
    25% {
        transform: translate(var(--translate-x, 50px), var(--translate-y, -50px)) scale(1.2);
        opacity: 1;
    }
    50% {
        transform: translate(calc(var(--translate-x, 50px) * 1.5), calc(var(--translate-y, -50px) * 1.5)) scale(0.8);
        opacity: 0.5;
    }
    75% {
        transform: translate(var(--translate-x, 50px), var(--translate-y, -50px)) scale(1.1);
        opacity: 0.8;
    }
    100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.7;
    }
}

/* Footer 404 */
.footer-404 {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #ffffff;
    padding: 1rem 2rem;
    z-index: 10;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.footer-content-404 {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-text-left,
.footer-text-right {
    margin: 0;
    font-size: 0.875rem;
    color: #000000;
    font-weight: 400;
}

.footer-text-right {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.topstack-link {
    color: #000000;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
}

.topstack-link:hover {
    color: #5BA3F5;
    text-shadow: 0 0 8px rgba(91, 163, 245, 0.4);
}

.topstack-link:active {
    color: #4A90E2;
    transform: scale(0.98);
}

.topstack-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #5BA3F5, #4A90E2);
    transition: width 0.3s ease;
}

.topstack-link:hover::after {
    width: 100%;
}

/* Responsividade */
@media (max-width: 768px) {
    .error-number {
        font-size: clamp(3rem, 20vw, 6rem);
        gap: 0.5rem;
    }
    
    .footer-content-404 {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }
    
    .footer-text-left,
    .footer-text-right {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .error-container {
        padding: 1rem;
    }
    
    .error-title {
        font-size: 1.25rem;
    }
    
    .error-description {
        font-size: 0.9rem;
    }
    
    .footer-404 {
        padding: 0.75rem 1rem;
    }
}